JP5544656B2 - Filter and oil / water separator - Google Patents

Description

  The present invention relates to a filter that removes oil from a liquid to be treated, and an oil-water separator that includes a filter and is configured to be able to remove oil from the liquid to be treated.

  As an oil / water separator equipped with this type of filter, an oil / water separator comprising an emulsion breaking oil adsorption tank (hereinafter also simply referred to as “adsorption tank”) is disclosed in JP-A-2006-239669. Has been. In this oil / water separator, the adsorption tank functioning as a filter includes an outer cylinder, a lower plate closing the lower opening of the outer cylinder, an upper plate closing the upper opening of the outer cylinder, and an upper plate. The container body is provided with an inner cylinder attached and disposed in the outer cylinder, and in the container body, an oil adsorbent with fibrous emulsion breaking particles, a fibrous oil adsorbent, and It is configured to be filled with granular activated carbon. In this case, in this adsorption tank, in a state where the oil adsorbent with emulsion breaking particles and the oil adsorbent are packed in the container body, by tightening nuts at both ends of the through bolts communicating the upper plate and the lower plate, Both openings of the outer cylinder are closed by the upper plate and the lower plate. Thereby, in this adsorption tank, the flow path for allowing the liquid to be processed to pass is formed in the inner cylinder and in the gap between the inner cylinder and the outer cylinder, and when the liquid to be processed is allowed to pass through this flow path, the emulsion The oil in the liquid to be treated is adsorbed and removed by the oil adsorbent with broken particles and the oil adsorbent.

Japanese Patent Laying-Open No. 2006-239669 (page 4-8, FIG. 4)

  However, the following problems exist in the adsorption tank in the conventional oil-water separator. That is, in the conventional adsorption tank, the structure which obstruct | occludes both opening parts of an outer cylinder with an upper board and a lower board is employ | adopted by tightening a nut to the both ends of the through-bolt which connected the upper board and the lower board. In this case, it is necessary to fill the container with a sufficient amount of the oil adsorbent in order to efficiently remove the oil in the liquid to be treated. Therefore, when assembling a conventional adsorption tank, the required amount of oil adsorbent (oil adsorbent with emulsion breaking particles, oil adsorbent, etc.) is pushed into the inner cylinder and the gap between the outer cylinder and the inner cylinder. In this case, it is necessary to press the upper plate and the lower plate against both ends of the outer cylinder, and tighten the nuts to both ends of the through bolt. For this reason, in the conventional adsorption tank, the operation of tightening the nuts at both ends of the through bolt while pressing the upper and lower plates against both ends of the outer cylinder against the restoring force of the filled oil adsorbent is extremely complicated. Due to this, there is a problem that the assembling work takes a long time. As a result, in conventional adsorption tanks and oil-water separators, the cost of reusing the adsorption tank (e.g., oil adsorbent with emulsion breaking particles or The cost required to replace only the oil adsorbent with a new one and remanufacture the adsorption tank is also rising.

  The present invention has been made in view of such problems, and a main object of the present invention is to provide a filter and an oil / water separator that can be easily assembled in a short time and can reduce the cost for reuse. .

In order to achieve the above object, the filter according to claim 1 is a cylindrical tube and a disk-shaped first plate disposed on a first plate member arrangement portion defined on one side of both openings of the tube. A filter container configured to include a first plate member and a disk-shaped second plate member arranged in a second plate member arrangement portion defined on the other side of the two openings in the cylindrical body. The oil adsorbent is disposed in the filter container, and the oil contained in the liquid to be processed that is allowed to pass through the filter container along the cylinder length direction of the cylinder by the oil adsorbent. A filter configured to be able to be adsorbed and removed, wherein the first plate member arrangement portion includes the first plate in the cylinder body in a first direction from the other opening portion toward the one opening portion. At least two first movement restricting protrusions for restricting movement of the plate material Is formed so as to protrude from the inner wall surface of the cylinder, and the first plate member is formed to have a diameter equal to or smaller than the inner diameter of the cylinder and has a first passage hole through which the liquid to be treated passes. And each said 1st movement regulation when it moves along the said cylinder length direction with respect to the said cylinder in the state arrange | positioned in the said cylinder so that a plate | board surface may orthogonally cross with respect to the said cylinder length direction First contact avoiding recesses capable of avoiding contact of the first plate with the projecting convex portions are respectively formed corresponding to the positions where the first movement restricting convex portions are formed on the cylindrical body. In addition, each oil adsorbent disposed in the filter container has a first convex contact portion defined in an outer edge region excluding the first contact avoidance concave portion forming portion. Pressed against the first movement restricting convex portion in the first direction. Disposed on the first plate arrangement portion in a state in which movement is restricted in one direction, and the first possible rotation restricting recess fitting the movement restricting projection, and moving the first One of the pair of rotation restricting convex portions engageable with the restricting convex portion is formed in the first convex portion abutting portion, and the first convex portion abutting portion is the first movement. The rotation of the first plate member in the cylindrical body is restricted by any one of the pressed state against the restricting convex portion .

  A filter according to a second aspect is the filter according to the first aspect, wherein the first plate member has a plurality of the first passage holes dispersed therein.

  Furthermore, the filter according to claim 3 is the filter according to claim 1 or 2, wherein the second plate member arrangement portion has the second orientation from the one opening to the other opening. At least two second movement restricting projections for restricting movement of the second plate member in the cylinder are formed so as to protrude from the inner wall surface of the cylinder, and the second plate member is formed of the cylinder. In a state where the second passage hole is formed to have a diameter equal to or smaller than the inner diameter and allows the treatment target liquid to pass therethrough, and the plate surface is disposed in the cylinder so as to be orthogonal to the cylinder length direction. A second contact avoiding recess for avoiding contact of the second plate member with the second movement restricting convex when the tube is moved along the tube length direction Forming position of each second movement restricting convex portion in the cylindrical body And the second convex contact portion defined in the outer edge region excluding the second contact avoiding concave portion is formed by the oil adsorbing material. It is arranged in the second plate material arrangement portion in a state in which the movement in the second direction is restricted by being pressed against the movement restricting convex portion in the second direction.

  A filter according to a fourth aspect is the filter according to any one of the first to third aspects, wherein a plurality of the second passage holes are formed in the second plate member in a dispersed manner.

  Furthermore, the filter according to claim 5 is the filter according to claim 3 or 4, wherein the first plate member and the second plate member are formed of the same material and in the same shape.

  A filter according to a sixth aspect is the filter according to any one of the first to fifth aspects, wherein the filter is formed in a disk shape having a diameter equal to or smaller than the inner diameter of the cylindrical body and allows the treatment target liquid to pass therethrough. And a third plate member disposed in the cylindrical body so as to be positioned between the first plate member and the second plate member.

  Furthermore, the filter according to claim 7 is the filter according to claim 6, wherein the third plate member arrangement portion in which the third plate member is arranged in the cylinder has the tube body in the first direction. At least two third movement restricting projections for restricting the movement of the third plate member are projected from the inner wall surface of the cylinder, and the plate surface of the third plate member is the tube length. The third plate member for the third movement restricting convex portions when moved in the cylinder length direction with respect to the cylinder in a state of being arranged in the cylinder so as to be orthogonal to the direction. Third abutment avoiding recesses that can avoid the abutment are respectively formed corresponding to the formation positions of the respective third movement restricting projections on the cylindrical body, and the third abutment The third defined in the outer edge region excluding the formation portion of the avoidance recess In the state where the part contact part is pressed in the first direction against the third movement restricting convex part by the oil adsorbing material, and the movement in the first direction is restricted. It is arrange | positioned at the board | plate material arrangement | positioning part.

  The filter according to claim 8 is the filter according to claim 6 or 7, wherein a plurality of the third passage holes are dispersed in the third plate member.

  Furthermore, the filter according to claim 9 is the filter according to claim 7 or 8, wherein the first plate member and the third plate member are formed of the same material and in the same shape.

  The filter according to claim 10 is the filter according to claim 9, wherein the first movement restricting convex portion and the third movement restricting convex portion are formed at positions where they overlap in the tube length direction. .

  Furthermore, a filter according to an eleventh aspect includes two filters according to any one of the first to tenth aspects, wherein the opening on the one side in one of the filters and the opening on the one side in the other filter. The two filters are integrated in a state where the parts face each other.

  An oil-water separator according to a twelfth aspect includes the filter according to any one of the first to eleventh aspects, and passes the liquid to be treated through the filter container along a cylinder length direction of the cylinder. As a result, the oil contained in the liquid to be treated is adsorbed and removed by the oil adsorbent.

In the filter according to claim 1, the tube in the first direction from the other opening to the one opening in the tube is arranged on the first plate member arrangement portion defined on one side of the both openings in the tube. At least two first movement restricting convex portions for restricting movement of the first plate member in the body are formed so as to protrude from the inner wall surface of the cylindrical body, and the plate surface is in the cylinder length direction of the cylindrical body. The first plate capable of avoiding contact of the first plate member with each first movement restricting projection when moved in the cylinder length direction with respect to the cylinder in a state of being arranged in the cylinder so as to be orthogonal to each other. Are formed on the first plate corresponding to the positions where the first movement restricting convex portions are formed on the cylindrical body, and the first contact avoiding concave portions are formed on the first plate member. Oil disposed in the filter container by the first convex contact portion defined in the outer edge region excluding The first plate is disposed on the first plate arrangement portion in a state in which movement is restricted in the first direction by pressing it is in a first orientation relative to each of the first movement restricting projection by Chakuzai In addition, one of the rotation restricting concave portion that can be fitted with the first movement restricting convex portion and the pair of rotation restricting convex portions that can be engaged with the first movement restricting convex portion is the first. In the state where the first convex contact portion is pressed against the first movement restricting convex portion, the rotation of the first plate member in the cylinder is performed by any one of the above. Movement is regulated .

  Moreover, in the oil-water separator of Claim 12, it is equipped with the filter in any one of Claim 1-11, and makes the inside of a filter container pass the process target liquid along the cylinder length direction of a cylinder. Therefore, a configuration is adopted in which the oil contained in the liquid to be treated is adsorbed and removed by the oil adsorbent.

Therefore, according to the filter according to claim 1 and the oil / water separator according to claim 12, the first plate member is moved toward the second plate member in a state in which the oil adsorbent is accommodated in the cylinder, and the oil adsorption is performed. The material is compressed, and the first plate member is rotated with respect to the cylindrical body in that state, and the first movement restricting convex portion and the first convex portion abutting portion are aligned in plan view. By simply loosening the force applied to one plate material, each first projection contact portion on the first plate material contacts each first movement restricting projection portion on the cylindrical body by the restoring force of the oil adsorbing material. Since the first plate member is arranged in the first plate member arrangement portion in a state where the movement in the first direction is restricted, the nuts are tightened at both ends of the through bolts that communicate the upper plate and the lower plate. Thus, the upper and lower plates close the both openings of the outer cylinder. Unlike the conventional adsorption vessel in a short time, and easily it can be assembled filter. According to the filter according to claim 1 and the oil-water separator according to claim 12, when a sufficient amount of oil is adsorbed by the oil adsorbing material and the processing capacity of the filter is lowered, the procedure reverse to the assembly work is performed. Since the oil adsorbent can be taken out by removing the first plate from the cylinder, the cost for reusing the filter container (cost required to replace the oil adsorbent with a new one and remanufacture the filter) Can be sufficiently reduced. Furthermore, the rotation of the first plate member in the cylinder is restricted by one of the rotation restriction concave portion and the pair of rotation restriction convex portions, so that the first plate body is the first in the cylinder. It is possible to surely avoid a situation where the arrangement part is removed.

  In the filter according to claim 2, a plurality of first passage holes are formed dispersed in the first plate member. In the filter according to the fourth aspect, the plurality of second passage holes are formed dispersed in the second plate member. In the filter according to the eighth aspect, the plurality of third passage holes are formed dispersed in the third plate member. Therefore, according to the filter according to claims 2, 4 and 8, and the oil-water separator according to claim 12, the cylinder diameter of the cylinder so that the liquid to be treated flowing into the filter container passes through each passage hole. Therefore, the oil adsorbent can be adsorbed in the entire area of the cylinder in the radial direction of the cylinder, so that the oil in the liquid to be treated can be removed reliably and efficiently.

  Furthermore, in the filter according to claim 3, the second plate member arrangement portion defined on the other side of both the opening portions in the cylindrical body has a second direction from the one opening portion to the other opening portion in the cylindrical body. At least two second movement restricting projections for restricting the movement of the second plate member in the cylindrical body are formed so as to protrude from the inner wall surface of the cylindrical body, and the plate surface extends in the cylinder length direction of the cylindrical body. The second plate member can be prevented from coming into contact with each second movement restricting convex portion when moved in the cylinder length direction with respect to the cylinder in a state of being arranged in the cylinder so as to be orthogonal to the cylinder. The second contact avoiding recess is formed on the second plate corresponding to the position where each second movement restricting protrusion is formed in the cylindrical body, and each second contact avoiding recess is formed. The second convex contact part defined in the outer edge area excluding the part is arranged in the filter container. The second plate member is placed on the second plate member arrangement portion in a state where the second adsorbent is pressed against the second movement restricting convex portion in the second direction and movement in the second direction is restricted. Has been placed. Therefore, according to the filter described in claim 3 and the oil-water separator described in claim 12, the filter container can be manufactured at a low cost by the amount that does not require welding of the second plate member to the cylindrical body.

  In the filter according to claim 5, the first plate member and the second plate member are formed of the same material and in the same shape. Furthermore, in the filter according to claim 9, the first plate member and the third plate member are formed of the same material and in the same shape. Therefore, according to the filter according to claims 5 and 9 and the oil-water separator according to claim 12, since the component cost can be reduced, the manufacturing cost of the filter can be sufficiently reduced.

  Moreover, according to the filter of Claim 6, and the oil-water separator of Claim 12, it is formed in the disk shape of the diameter below the internal diameter of a cylinder, and is located between a 1st board | plate material and a 2nd board | plate material. Unlike the configuration in which the third plate member does not exist, by providing the third plate member disposed in the cylindrical body as described above, the oil adsorbent is biased between the first plate member and the second plate member. Can be avoided. Further, for example, when a configuration for accommodating a sheet-like emulsion breaking material or the like is adopted, the emulsion breaking material is contained in the filter container by housing the emulsion breaking material so as to be in contact with the third plate member. The state where the emulsion breaking material is expanded in the cylinder radial direction of the cylindrical body along the plate surface of the third plate material can be maintained while avoiding the situation of being inclined or greatly deformed. For this reason, when the inside of the filter container is viewed along the cylinder length direction of the cylinder, it is possible to avoid a situation in which an area in which the emulsion breaking material does not exist is generated. As a result, the emulsion contained in the liquid to be processed The emulsion breaking material can be surely passed. Thereby, the oil component contained in the process target liquid in the emulsified state can be reliably removed.

  Furthermore, in the filter according to claim 7 and the oil-water separator according to claim 12, the third plate member mounting portion to which the third plate member is attached in the cylinder is changed from the other opening to the one opening. At least two third movement restricting projections for restricting movement of the third plate member in the cylinder in the first direction toward the first are formed so as to protrude from the inner wall surface of the cylinder, and the plate surface is a cylinder. When the third plate member with respect to each third movement restricting convex portion is moved along the tube length direction with respect to the tube body in a state of being arranged in the tube body so as to be orthogonal to the tube length direction of the body, Third contact avoidance recesses capable of avoiding contact are formed on the third plate member corresponding to the positions where the third movement restricting projections are formed on the cylindrical body. The third defined in the outer edge region excluding the formation portion of the contact avoidance concave portion The first abutting portion is pressed in the first direction against each third movement restricting convex portion by the oil adsorbing material disposed in the filter container, and the movement in the first direction is restricted. The third plate material is arranged in the three plate material arrangement portions.

  Therefore, according to the filter according to claim 7 and the oil-water separator according to claim 12, first, the oil adsorbing material is disposed between the second plate material and the third plate material, and then the third plate material and As a result of arranging the oil adsorbing material between the first plate material, the force required to compress the oil adsorbing material when the third plate material is arranged in the third plate material arranging portion, and the first Compared with the configuration in which the third plate member is not arranged in the third plate member arrangement part because the force required to compress the oil adsorbent when the first plate member is arranged in the plate member arrangement part may be sufficiently small. The filter can be assembled more easily.

  According to the filter according to claim 10 and the oil-water separator according to claim 12, the first movement restricting convex portion and the third movement restricting convex portion are formed at positions overlapping in the tube length direction. When the third plate member is arranged on the third plate member arrangement portion, the first movement restriction convex portion is formed by aligning the third contact avoidance concave portion with respect to the first movement restriction convex portion. When the third plate member in a state where the contact with respect to the third plate member is moved toward the third plate member arrangement portion, the third plate member for restricting movement is not rotated without rotating the third plate member with respect to the cylindrical body. Since the contact of the third plate material with the portion can be avoided, the filter in which the third plate material is arranged in the third plate material arrangement portion can be more easily assembled.

  Furthermore, according to the filter according to claim 11 and the oil-water separator according to claim 12, two filters according to any one of claims 1 to 10 are provided, the opening on one side of one filter, and the other When the two filters are integrated in a state in which the opening on one side of the filter is opposed to each other, the length along the cylinder length direction of one filter becomes excessively long and the assembly becomes difficult. Without inviting, the flow path of the liquid to be treated can be made sufficiently long. Thereby, a filter having a sufficiently high processing capability can be easily assembled.

It is sectional drawing which shows the internal structure of the filter 1 and the gas-liquid separation tank 110 in the oil-water separator 100 which concerns on embodiment of this invention. It is sectional drawing for demonstrating an example of the other usage pattern of the filter 1,1A which concerns on embodiment of this invention. It is sectional drawing for demonstrating an example of the further another usage pattern of the filter 1 which concerns on embodiment of this invention. It is sectional drawing for demonstrating an example of the further another usage pattern of filter 1A which concerns on embodiment of this invention. It is the top view which looked at the cylinder 11 of the state to which the board | plate material 13 in the filter 1 which concerns on embodiment of this invention was attached from the opening part 11a side. It is an external appearance perspective view of the arrangement | positioning part P1 (opening part 11a) in the cylinder 11 of the filter 1 and 1A which concerns on embodiment of this invention. It is a top view of the board | plate material 12 in the filter 1,1A which concerns on embodiment of this invention. The plate member with respect to the cylinder 11 so that the movement restricting projections 21a (21b) of the cylinder 11 in the filters 1 and 1A according to the embodiment of the present invention are aligned with the contact avoidance recess 32 of the plate 12. It is a top view in the state where 12 was rotated. It is a top view of the state which attached the board | plate material 12 to the arrangement | positioning part P1 (P3) of the cylinder 11 in the filter 1, 1A which concerns on embodiment of this invention. It is a top view of the board | plate material 12a which concerns on other embodiment of this invention. It is an external appearance perspective view of the board | plate material 12b which concerns on other embodiment of this invention. It is an external appearance perspective view of the board | plate material 12c which concerns on other embodiment of this invention. It is sectional drawing which shows the internal structure of the filter 1B which concerns on other embodiment of this invention. It is sectional drawing which shows the internal structure of the filter 1C which concerns on other embodiment of this invention.

  Hereinafter, embodiments of a filter and an oil / water separator according to the present invention will be described with reference to the accompanying drawings.

  An oil / water separator 100 shown in FIG. 1 includes a filter 1 and a gas-liquid separation tank 110, and drain water W ("treatment target liquid") discharged from a drain generation source (not shown) such as an air compressor or an air dryer. The drain water W can be purified by removing the oil contained in the example. In the filter 1, an oil adsorbing material 3 and an emulsion breaking material 4 are filled in a filter container 2 including a cylindrical body 11 and plate members 12, 12, 13 (“the oil adsorbing material is in the filter container. An example of a configuration of “disposed”), the drain water W is allowed to pass through in the direction of the arrow C so that the oil can be removed.

  As an example, the cylinder 11 is formed in a cylindrical shape having an inner diameter of about 200 mm by stainless steel having a thickness of about 1 mm. In this case, as shown in FIG. 1, in this filter 1, the plate member 12 is disposed (attached) on one side of the openings 11a and 11b (in this example, the opening 11a side) in the cylindrical body 11. ) An arrangement portion P1 (an example of a “first plate material arrangement portion”) is defined, and the plate material 13 is arranged on the other side of the openings 11a and 11b (in this example, the opening 11b side) ( An arrangement portion P2 (an example of the “second plate material arrangement portion”) is defined, and the plate material 12 is arranged between the arrangement portions P1 and P2 in the tube length direction (vertical direction in the figure). (To be attached) P3 (an example of “third plate member arrangement”) is defined.

  Further, the placement portion P1 has four movement restricting features that restrict the movement of the plate member 12 in the cylindrical body 11 in the direction of the arrow A1 from the opening portion 11b to the opening portion 11a (an example of “first direction”). The convex portion 21 a (an example of a “first movement restriction convex portion”) is formed so as to protrude from the inner wall surface of the cylindrical body 11. Further, the plate member 13 is fixedly arranged on the arrangement portion P2 by welding. Further, the placement portion P3 includes four movement restricting convex portions that restrict the movement of the plate member 12 in the cylindrical body 11 in the direction of the arrow A1 from the opening portion 11b to the opening portion 11a (“first direction”). 21 b (an example of a “third movement restricting convex portion”) is formed so as to protrude from the inner wall surface of the cylindrical body 11.

  In this case, as shown in FIGS. 5 and 6, in this filter 1, the above-mentioned four movement restricting convex portions 21a are formed by cutting stainless steel having an L-shaped cross section into a predetermined size. The portions 21a are welded to the arrangement portion P1 so that the positions in the cylinder length direction of the cylinder 11 coincide with each other at equal angular intervals of 90 °. Further, in the arrangement portion P3 of the cylindrical body 11, four movement restricting convex portions 21b obtained by cutting a stainless steel having an L-shaped cross section into a predetermined size in the same manner as each of the movement restricting convex portions 21a described above are 90 °. Welding is performed so that the positions in the cylinder length direction of the cylinder 11 coincide with each other at equal angular intervals. In this case, in the filter 1, each movement restricting convex portion 21 a and each movement restricting convex portion 21 b are located at positions where they overlap each other in the tube length direction of the cylindrical body 11 (when viewed from the opening portion 11 a side). The movement restricting projections 21b are welded so that the movement restricting projections 21b are not visible due to the presence of the projections 21a for use. An annular flange 14 having an inner diameter equal to the outer diameter of the cylinder 11 is welded to the end of the cylinder 11 on the opening 11a side.

  The plate 12 is formed of a stainless steel having a thickness of about 1 mm in a disc shape (circular shape in plan view) having an outer diameter of about 195 mm. In this case, in this filter 1, the plate member 12 attached to the placement portion P1 corresponds to the “first plate member”, and the plate member 12 attached to the placement portion P3 corresponds to the “third plate member”. In addition, in this filter 1, although the same board | plate material 12 formed in the same shape with the same material is used as a "1st board | plate material" and a "3rd board | plate material", these are mutually different board | plate materials (shape, shape, It is also possible to use a plate material in which any one or more of thickness, material, and the like are different. As shown in FIG. 7, a plurality of passage holes 31 through which the drain water W passes (corresponding to “first passage holes” and “third passage holes”) are dispersed and formed in the plate 12. Has been.

  In this case, when the drain water W is moved along the cylinder length direction in the cylinder body filled with the oil adsorbing material 3 and the like, generally, the inner wall surface of the cylinder body rather than the radial center part of the cylinder body. There is a tendency for the drain water W to move more easily at the part in contact. For this reason, in the cylindrical body that does not have a partition plate such as the plate member 12 described above, the amount of the drain water W that passes through the portion that is in contact with the inner wall surface of the cylindrical body is greater than the central portion in the radial direction of the cylindrical body. Further, the processing capacity of the oil adsorbent 3 may be reduced in a short period in the vicinity of the portion in contact with the inner wall surface of the cylinder, rather than the radial center of the cylinder. Therefore, in this filter 1, a plurality of passage holes 31 are formed in the plate member 12 such that the passage hole 31 on the center side has a larger diameter than the passage hole 31 on the outer edge side, thereby providing a filter container. 2, part of the drain water W about to move along the inner wall surface of the cylindrical body 11 is guided to the central portion in the radial direction of the cylindrical body 11, and the drain water W is uniformly distributed over the entire radial direction of the cylindrical body 11. A configuration for processing in a distributed manner is adopted.

  Further, as shown in FIG. 8, the plate member 12 is moved along the tube length direction with respect to the tube body 11 in a state of being positioned in the tube body 11 so as to be orthogonal to the tube length direction. A contact avoidance recess 32 that can avoid contact of the plate 12 with the movement restricting projections 21a and 21b (a notch cut out so that the outer edge of the plate 12 is recessed toward the center: Corresponding to the formation positions of the movement restricting convex portions 21a and 21b in the cylindrical body 11 at equal angular intervals of 90 °. Is formed. As a result, as shown in FIGS. 7 to 9, in this plate member 12, between the contact avoiding recesses 32, 32 adjacent in the circumferential direction (“outer edge region excluding the first contact avoiding recess forming portion” ”And“ corresponding to the outer edge region excluding the formation portion of the third contact avoiding recess ”), as will be described later, the convex contact portion 33 that contacts the respective movement restricting convex portions 21a and 21b. (Corresponding to “first convex part contact part” and “third convex part contact part”).

  The plate member 13 corresponds to a “second plate member” and is formed into a disk shape having an outer diameter of about 200 mm with stainless steel having a thickness of about 6 mm. As shown in FIGS. A passage hole 41 for connecting a connection pipe for introducing (or discharging) the drain water W is provided. In this case, in this filter 1, the plate material 13 is fixedly attached to the arrangement portion P2 of the cylindrical body 11 by welding. Thereby, in this filter 1, the bottomed cylindrical part itself comprised with the cylinder 11 and the board | plate material 13 is comprised so that it may function as a pressure vessel. The oil adsorbing material 3 is made of cotton-like polypropylene or a woven or non-woven fabric obtained by processing polypropylene into a sheet. In this case, as the oil adsorbing material 3, a thin piece of polypropylene or a thin piece of polypropylene can be used. The emulsion breaking material 4 is composed of an amine-based emulsion breaking sheet (a material processed into a sheet shape based on fibrous polypropylene).

  On the other hand, the gas-liquid separation tank 110 is a separation tank for removing gas (air) pumped together with the drain water W via a drain pipe (not shown). As shown in FIG. A pressure vessel composed of a plate 112 and a bottom plate 113 is provided. As an example, the cylinder 111 is formed in a cylindrical shape having the same diameter as the cylinder 11 of the filter container 2 in the filter 1. As an example, the top plate 112 is formed in a disc shape having an outer diameter that is the same as the outer diameter of the flange 14 of the filter container 2 in the filter 1, and is arranged at one end portion (the upper end in FIG. Part). The bottom plate 113 is formed in a disk shape having an outer diameter the same as that of the cylinder 111 and is welded to the other end (lower end in the figure) of the cylinder 111.

  In this case, an inlet 114 for introducing the drain water W is provided on the side surface of the cylinder 111 so that the drain pipe can be connected. Further, a water supply pipe 115 for supplying the drain water W introduced from the introduction port 114 to the filter 1 is disposed in the central portion of the top plate 112 in the radial direction. Further, a discharge port 116 (for discharging separated gas (air)) is provided on the upper side surface of the cylindrical body 111, and a pressure reducing valve 117 is attached to the discharge port 116. The gas-liquid separation tank 110 is integrated with the filter 1 by bolting the top plate 112 to the flange 14 of the filter 1.

  In addition, as a usage form of the filter 1, it is not limited to the form used combining with the gas-liquid separation tank 110 like said oil-water separation apparatus 100. FIG. For example, as shown in FIG. 2, it is possible to adopt a usage pattern in which the filter 1 described above is combined with another filter 1A to function as one filter (“one opening in one filter and the other on the other side” An example of a filter in which both filters are integrated in a state in which the opening on one side of the filter is opposed to each other). Moreover, as shown in FIG. 3, the usage form which obstruct | occludes the opening part 11a with the cover body 51 in which the passage hole 51a was formed in the center part, and functions as a filter is employable.

  In this case, since the filter 1A removes oil by passing the drain water W in the direction of the arrow C, the accommodation position of the oil adsorbing material 3 and the emulsion breaking material 4 in the filter container 2 is the filter 1 However, the other configurations are the same as those of the filter 1. Therefore, as shown in FIG. 4, a usage form in which the opening 11a is closed by the lid 51 and functions as a filter can also be adopted for the filter 1A. In addition, about the component which has the same function in the filters 1 and 1A, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  Moreover, said filter 1 and 1A can be assembled according to the substantially same assembly procedure only in the accommodation order of the oil adsorption material 3 and the emulsion breaking material 4 differing. Therefore, hereinafter, a method for assembling the filter 1 will be mainly described. When the filter 1 is assembled, first, the oil adsorbing material 3 and the emulsion breaking material 4 are filled between the plate material 13 (arrangement portion P2) and the arrangement portion P3. Specifically, first, the oil adsorbing material 3 is accommodated in the cylindrical body 11 from the opening 11a and placed on the plate material 13 welded to the arrangement portion P2. In this case, the oil adsorbent is located up to a position sufficiently higher than a half height of the cylinder 11 with respect to the cylinder length (a height corresponding to the length along the cylinder length direction between the arrangement portions P2 and P3). 3 is accommodated. In addition, the oil adsorbent 3 tends to reduce the volume in the cylinder 11 more than an unused state by adsorbing oil. Therefore, in a state where the volume is reduced due to the adsorption of the oil component, a sufficient amount of the oil adsorbing material 3 that can press the plate 12 against the movement restricting convex portion 21b with a sufficiently strong force as described later is disposed. , P3.

  Next, a plurality of emulsion breaking materials 4 are accommodated in the cylinder 11 from the opening 11 a and placed on the oil adsorbing material 3. Subsequently, the plate member 12 to be attached to the placement portion P3 is accommodated in the cylinder 11 from the opening 11a, and the plate surface is maintained with respect to the cylinder 11 while maintaining a posture orthogonal to the cylinder length direction of the cylinder 11. The board | plate material 12 is moved toward the arrangement | positioning part P3 along a cylinder length direction. At this time, as shown in FIG. 8, the convex portions of the plate member 12 with respect to the respective movement restricting convex portions 21a welded to the placement portion P1 and the respective movement restricting convex portions 21b welded to the placement portion P3. In order to prevent the contact portion 33 from coming into contact, the movement restricting convex portions 21a and 21b of the cylindrical body 11 and the contact avoidance concave portion 32 of the plate 12 are aligned with respect to the cylindrical body 11 in plan view. In this state, the plate 12 is moved along the cylinder length direction. Thereby, between the board | plate material 13 and the board | plate material 12, the oil adsorption material 3 and the emulsion breaking material 4 are fully compressed. In this case, since the oil adsorbing material 3 and the emulsion breaking material 4 are compressed in a state where the emulsion breaking material 4 placed on the oil adsorbing material 3 is in surface contact with the plate material 12, the inside of the filter container 2 In this case, a situation in which the emulsion breaking material 4 is inclined or greatly deformed is avoided.

  Next, until the plate member 12 is located slightly below the placement portion P3 (until the placement portion P3 is located slightly closer to the placement portion P2: the plate member 12 is located on the placement portion P2 side than the respective movement restricting convex portions 21b. In the moved state, the plate 12 is rotated about 45 ° in either the clockwise or counterclockwise direction with respect to the cylinder 11. Thereafter, by loosening the force pressing the plate member 12 toward the plate member 13, as shown in FIG. 9, the convex portion abutment of the plate member 12 is caused by the restoring force of the compressed oil adsorbing material 3 or emulsion breaking material 4. The portion 33 is pressed against each movement restricting convex portion 21b of the cylinder 11 in the direction of the arrow A1 shown in FIG. As a result, the plate 12 is attached to the placement portion P3 in a state where movement in the direction of the arrow A1 is restricted.

  Subsequently, the oil adsorbing material 3 is accommodated in the cylindrical body 11 from the opening portion 11a and placed on the plate material 12 attached to the arrangement portion P3. In this case, the oil adsorbent is located up to a position sufficiently higher than the half height (the height corresponding to the length along the cylinder length direction between the arrangement portions P3 and P1) of the cylinder 11 with respect to the cylinder length. 3 is accommodated. At this time, a sufficient amount of the oil adsorbing material 3 capable of pressing the plate member 12 against the movement restricting convex portion 21a with a sufficiently strong force as described later in a state where the volume is reduced by the adsorption of the oil component. It fills between arrangement | positioning parts P3 and P1. Next, a plurality of emulsion breaking materials 4 are accommodated in the cylinder 11 and placed on the oil adsorbing material 3. Subsequently, the plate 12 is directed toward the placement portion P1 along the tube length direction of the cylinder 11 while maintaining the posture in which the plate surface of the plate 12 attached to the placement portion P1 is orthogonal to the tube length direction of the tube 11. To move.

  In this case, as shown in FIG. 8, in plan view, the convex portion abutting portion 33 of the plate 12 does not abut against each movement regulating convex portion 21 a welded to the arrangement portion P <b> 1. The plate member 12 is moved in a state in which the plate member 12 is rotated with respect to the tube member 11 so that the movement restricting convex portions 21a of the tube member 11 and the contact avoidance recess portion 32 of the plate member 12 are aligned. Thereby, the oil adsorbent 3 and the emulsion breaking material 4 are sufficiently compressed between the plate 12 attached to the placement portion P3 and the plate 12 moved toward the placement portion P1. In this case, because the emulsion adsorbing material 3 and the emulsion breaking material 4 are compressed in a state where the emulsion breaking material 4 placed on the oil adsorbing material 3 is in surface contact with the plate material 12 attached to the placement portion P1, A situation in which the emulsion breaking material 4 is inclined or greatly deformed in the filter container 2 is avoided.

  Next, until the plate material 12 is positioned slightly below the placement portion P1 (until the placement portion P1 is located slightly closer to the placement portions P2 and P3: the plate material 12 is located at the placement portions P2 than the respective movement restricting convex portions 21a. In the moved state (until it is located on the P3 side), the plate member 12 is rotated about 45 ° in either the clockwise or counterclockwise direction with respect to the cylinder 11. Thereafter, by loosening the force pressing the plate member 12 toward the plate member 13, as shown in FIG. 9, the convex contact portion 33 of the plate member 12 is formed into a cylindrical body by the restoring force of the compressed oil adsorbent 3. 11 is pressed against each of the movement restricting convex portions 21a in the direction of the arrow A1 shown in FIG. Thereby, in the state in which the movement in the direction of the arrow A1 is restricted, the plate member 12 is attached to the placement portion P1, and the filter 1 is completed.

  The above-described filter 1A can be assembled according to an assembly procedure substantially the same as that of the filter 1 described above. However, unlike the assembly of the filter 1, the emulsion breaking material 4 is disposed between the placement portions P2 and P3. These are accommodated in the order of the oil adsorbing material 3 and in the order of the emulsion breaking material 4 and the oil adsorbing material 3 between the placement portions P3 and P1. Thereby, similarly to said filter 1, the emulsion breaking material 4 can be located in the upstream with respect to the oil adsorption material 3 in the passage direction (direction of arrow C) of the drain water W. In this case, in the filter 1A, the direction of the arrow B1 in FIGS. 2 and 4 corresponds to the “first direction”, and the direction of the arrow B2 corresponds to the “second direction”.

  Further, although different from the filters 1 and 1A, only the oil adsorbing material 3 is arranged between the arranging portions P2 and P3, and the oil adsorbing material 3 and the emulsion breaking material 4 are arranged between the arranging portions P3 and P1. Alternatively, a configuration (not shown) is employed in which only the oil adsorbing material 3 is arranged between the arranging portions P3 and P1, and the oil adsorbing material 3 and the emulsion breaking material 4 are arranged between the arranging portions P2 and P3. You can also. In the case of adopting such a configuration, by appropriately changing the accommodation order of the oil adsorbing material 3 and the emulsion breaking material 4 at the time of assembly, the oil adsorbing material 3 is upstream of the direction in which the drain water W passes. It is preferable that the emulsion breaking material 4 is located on the side.

  On the other hand, when the drain water W is purified by the oil / water separator 100, the assembled filter 1 is attached to the gas-liquid separation tank 110 as shown in FIG. A drain pipe (supply pipe) is connected, and a pipe (discharge pipe) that guides the drain water W after treatment to a drain groove or the like is connected to the passage hole 41 of the filter 1. In this state, when the drain water W is sent from the drain generation source through the drain pipe, first, the drain water W mixed with a gas such as air is introduced into the gas-liquid separation tank 110 from the introduction port 114, and FIG. As indicated by a broken line in FIG. 1, the air and the drain water W are separated in the gas-liquid separation tank 110. In this case, the gas separated in the gas-liquid separation tank 110 is opened from the outlet 116 when the pressure reducing valve 117 is opened when the gas-liquid separation tank 110 exceeds a predetermined pressure. Is discharged outside. On the other hand, the drain water W from which the gas has been separated and removed in the gas-liquid separation tank 110 is raised in the water supply pipe 115 by the drain water W introduced from the inlet 114 or the pressure of the gas, and the opening 11a. Are introduced into the filter 1.

  In this case, the drain water W introduced into the filter 1 is in a state where oil and moisture in an emulsified state and oil and moisture in a state separated from each other are mixed. Therefore, in this filter 1, when the drain water W that has flowed into the filter container 2 through the water supply pipe 115 of the gas-liquid separation tank 110 passes through each emulsion breaking material 4, the oil and water that have been emulsified are lost. A configuration is adopted in which the separated oil component is separated (emulsified) and the separated oil component is adsorbed and removed by the oil adsorbing material 3 together with the oil component that has flowed into the filter container 2 without being emulsified. In this case, in this filter 1, since a plurality of passage holes 31 are formed in a dispersed manner on the plate 12 attached to the placement portions P1 and P3, for example, one passage hole 31 is formed in the central portion of the plate. Unlike the configuration using the plate material, the drain water W flowing into the filter container 2 is allowed to pass through the filter container 2 so as to pass through the passage holes 31 and expand in the cylinder radial direction of the cylinder 11. It will be. As a result, all the oil adsorbents 3 in the filter container 2 can be used effectively, and as a result, the oil content in the drain water W is sufficiently removed, and the water content that does not contain oil from the passage hole 41 ( Only the purified drain water W) is discharged.

  On the other hand, in this filter 1, when the oil adsorbing material 3 is in a state where a sufficient amount of oil has been adsorbed by long-term use, the used filter 1 is disassembled to destroy the oil adsorbing material 3 and the emulsion. The filter container 2 can be reused by replacing only the material 4 with a new one. Specifically, first, the plate member 12 attached to the placement portion P1 is moved toward the plate member 13 in the direction of the arrow A2 shown in FIG. A gap is generated between the portion 33 and the portion 33. Next, the plate member 12 is rotated about 45 ° clockwise or counterclockwise with respect to the cylinder 11. At this time, as shown in FIG. 8, when the plate member 12 is rotated until each movement restricting convex portion 21 a and the contact avoiding concave portion 32 coincide with each other in plan view, The engagement is automatically released, and the plate material 12 is moved in the direction of the arrow A1 shown in FIG. 1 by the restoring force of the oil adsorbing material 3 and the emulsion breaking material 4. Subsequently, the plate member 12 is removed from the cylindrical body 11.

  Next, after the used emulsion breaking material 4 and the oil adsorbing material 3 on the plate 12 attached to the placement portion P3 are taken out from the cylindrical body 11, the plate 12 attached to the placement portion P3 is removed. At this time, the plate member 12 is moved toward the plate member 13 in the direction of the arrow A2 shown in FIG. 1 to create a gap between each movement restricting convex portion 21b and the convex portion abutting portion 33. Subsequently, the plate 12 is rotated about 45 ° in either a clockwise or counterclockwise direction with respect to the cylindrical body 11. At this time, as shown in FIG. 8, when the plate member 12 is rotated until each movement restricting convex portion 21 b and the contact avoiding concave portion 32 coincide with each other in plan view, The engagement is automatically released, and the plate material 12 is moved in the direction of the arrow A1 shown in FIG. 1 by the restoring force of the oil adsorbing material 3 and the emulsion breaking material 4. Subsequently, the plate member 12 is removed from the cylindrical body 11.

  Next, after the used emulsion breaking material 4 and the oil adsorbing material 3 on the plate 13 are taken out from the cylinder 11, the cylinder 11, the plates 12, 12, and 13 are washed. Thereafter, in the same manner as in the assembly procedure described above, the filter container 2 is filled with new (unused) oil adsorbing material 3 or emulsion breaking material 4, whereby the remanufacturing operation of the filter 1 is completed. In this case, in this filter 1 in which there is no net material or dredging material that accommodates the oil adsorbing material 3 and the emulsion breaking material 4, the used oil adsorbing material 3 that has adsorbed oil and the used emulsion that has a reduced processing capacity. Since only the waste material 4 is separated and discarded, no extra waste material is generated, so that the waste material can be easily processed at low cost.

  On the other hand, unlike the oil-water separator 100 described above that purifies the drain water W in combination with the gas-liquid separator 110, the filter 1 and the filter 1A can also be used as a so-called line filter. Specifically, as an example, as shown in FIG. 2, the flanges 14 and 14 are brought into contact with each other so that the opening 11a of the filter 1 and the opening 11a of the filter 1A are opposed to each other. The filters 1 and 1A are integrated by tightening nuts to bolts through which both flanges 14 and 14 are inserted. Next, a drain pipe (supply pipe) is connected to the passage hole 41 in the filter 1A, a discharge pipe is connected to the passage hole 41 in the filter 1, and the drain water W is passed in the direction of arrow C shown in FIG. Let Thereby, both the filters 1 and 1A function as a line filter, and the drain water W is purified.

  When the filter 1 is used alone and used as a line filter, first, as shown in FIG. 3, a lid 51 is attached to the flange 14 to close the opening 11a. Next, a drain pipe (supply pipe) is connected to the passage hole 51a of the lid 51, a discharge pipe is connected to the passage hole 41 in the filter 1, and the drain water W is supplied in the direction of arrow C shown in FIG. Let it pass. Thereby, the filter 1 functions as a line filter in combination with the lid 51, and the drain water W is purified. Further, when the filter 1A is used alone as a line filter, first, as shown in FIG. 4, a lid 51 is attached to the flange 14 to close the opening 11a. Next, a drain pipe (supply pipe) is connected to the passage hole 41 of the filter 1A, a discharge pipe is connected to the passage hole 51a of the lid 51, and the drain water W is supplied in the direction of arrow C shown in FIG. Let it pass. Thereby, the filter 1A functions as a line filter in combination with the lid 51, and the drain water W is purified.

  As described above, even when the filters 1 and 1A are combined or used as a line filter alone, the usage pattern is combined with the gas-liquid separation tank 110 as in the oil-water separator 100 described above. When the oil adsorbent 3 has adsorbed a sufficient amount of oil through long-term use, the used filters 1 and 1A are disassembled, and only the oil adsorbent 3 and the emulsion breaking material 4 are removed. The filter container 2 can be reused by replacing it with a new one.

  Thus, in the filters 1 and 1A, the opening 11b opens from the opening 11b to the arrangement portion P1 defined on one side (in this example, the upper side in FIG. 1) of both the openings 11a and 11b in the cylindrical body 11. Four movement restricting convex portions 21a for restricting the movement of the plate member 12 in the cylindrical body 11 in the first direction (in this example, the direction of the arrow A1 shown in FIG. 1) toward the 11a are the inner wall surfaces of the cylindrical body 11. And moves along the cylinder length direction with respect to the cylinder 11 in a state where the plate surface is positioned in the cylinder 11 so as to be orthogonal to the cylinder length direction of the cylinder 11. The contact avoiding recesses 32 that can avoid the contact of the plate member 12 with the movement restricting convex portions 21a when they are made correspond to the formation positions of the movement restricting convex portions 21a in the cylindrical body 11, respectively. Each contact avoidance recess is formed The first aforesaid first direction (with respect to each movement restricting convex portion 21a by the oil adsorbing material 3 filled in the filter container 2 by the convex portion abutting portion 33 defined in the outer edge region excluding the formation portion 32 (see FIG. The plate member 12 is attached to the placement portion P1 in a state in which the movement in the first direction is restricted in the direction of the arrow A1).

  Further, the oil / water separator 100 described above includes the filter 1, and the oil content contained in the drain water W by allowing the drain water W to pass through the filter container 2 along the cylinder length direction of the cylinder 11. The structure which adsorb | sucks and removes by the oil adsorbent 3 is employ | adopted.

  Therefore, according to this filter 1, 1 </ b> A and the oil / water separator 100, the oil adsorbent is obtained by moving the plate 12 toward the plate 13 in a state where the oil adsorbent 3 and the emulsion breaking material 4 are accommodated in the cylinder 11. 3 and the emulsion breaking material 4 are compressed, and in this state, the plate 12 is rotated with respect to the cylindrical body 11 so that the movement restricting convex portions 21a and the convex portion abutting portions 33 are aligned in plan view. By simply loosening the force applied to 12, the convex contact portions 33 of the plate 12 are brought into contact with the respective movement restricting convex portions 21 a of the cylinder 11 by the restoring force of the oil adsorbing material 3 and the emulsion breaking material 4. Since the plate member 12 is attached to the placement portion P1 in a state where movement in the first direction is restricted, the upper plate and the upper plate and the lower plate can be tightened by tightening nuts at both ends of the through-bolts communicating the upper plate and the lower plate. Unlike conventional adsorption tank configuration for closing both the openings of the outer cylinder by the lower plate, a short time, and easily can be assembled filter 1. Further, according to the filters 1 and 1A and the oil / water separator 100, when a sufficient amount of oil is adsorbed by the oil adsorbing material 3 and the processing capacity of the filters 1 and 1A is reduced, the cylinder is followed according to the reverse procedure of the assembly work. Since the plate 12 can be removed from the body 11 and the oil adsorbing material 3 and the emulsion breaking material 4 can be taken out, the cost of reusing the filter container 2 (replace only the oil adsorbing material 3 and the emulsion breaking material 4 with a new one) Thus, the cost required to remanufacture the filters 1 and 1A can be sufficiently reduced.

  In addition, according to the filters 1 and 1A and the oil / water separator 100, the plurality of passage holes 31 are formed in the first plate member and the plate member 12 as the third plate member so as to be dispersed in the filter container 2. Since the drain water W that has flowed in passes through each passage hole 31 and expands in the cylinder radial direction of the cylinder 11, the oil adsorbent 3 can be adsorbed with oil in the entire area of the cylinder 11 in the cylinder radial direction. The oil content of the drain water W can be removed reliably and efficiently.

  In this filter 1, 1 </ b> A and the oil / water separator 100, the plate material 12 as the “first plate material” and the plate material 12 as the “third plate material” are formed of the same material and in the same shape. Therefore, according to this filter 1 and 1A, since component cost can be reduced, the manufacturing cost of filter 1 and 1A can fully be reduced.

  Furthermore, according to this filter 1, 1 </ b> A and the oil / water separator 100, the filter 11 is formed in a disk shape having a diameter equal to or smaller than the inner diameter of the cylinder 11, and is disposed in the cylinder 11 so as to be positioned between the plates 12, 13. Unlike the configuration in which the plate member 12 as the “third plate member” does not exist, the plate member 12 as the “first plate member” and the plate member 13 as the “second plate member” are provided. It is possible to avoid a situation in which the oil adsorbing material 3 and the emulsion breaking material 4 are biased. Moreover, in this filter 1,1A and the oil-water separator 100, since the structure which accommodates the emulsion breaking material 4 so that the board | plate material 12 as a "3rd board | plate material" may be accommodated is employ | adopted, this emulsion breaking material 4 is a filter. It is possible to avoid the situation where the container 2 is inclined or greatly deformed, and the state in which the emulsion breaking material 4 is expanded in the cylinder radial direction of the cylinder 11 along the plate surface of the plate 12 can be maintained. For this reason, when the inside of the container 2 for a filter is seen along the cylinder length direction of the cylinder 11, the situation where the area | region where the emulsion breaking material 4 does not exist can be avoided, As a result, it is contained in the drain water W. The emulsion is surely passed through the emulsion breaking material 4. Thereby, the oil component contained in the drain water W in the state emulsified can be removed reliably.

  Moreover, in this filter 1 and 1A and the oil-water separator 100, the 1st which goes to the opening part 11a from the opening part 11b in the cylinder 11 to the arrangement | positioning part P3 to which the board | plate material 12 as a 3rd board | plate material is attached in the cylinder 11 is attached. Four movement restricting convex portions 21b that restrict the movement of the plate 12 in the cylinder 11 in the direction (in this example, the direction of the arrow A1 shown in FIG. 1) are formed so as to protrude from the inner wall surface of the cylinder 11. And each movement when moved along the cylinder length direction with respect to the cylinder 11 in a state where the plate surface is positioned in the cylinder 11 so as to be orthogonal to the cylinder length direction of the cylinder 11 A contact avoiding recess 32 capable of avoiding the contact of the plate member 12 with the restricting convex portion 21b is formed on the plate member 12 corresponding to the formation position of each movement restricting convex portion 21b in the cylindrical body 11, respectively. Concave for avoiding contact The convex portion abutting portion 33 defined in the outer edge region excluding the formation portion 32 is in a first direction (arrow A1) with respect to each movement regulating convex portion 21b by the oil adsorbing material 3 filled in the filter container 2. The plate member 12 is attached to the placement portion P3 in a state where the movement in the first direction is restricted and the movement in the first direction is restricted.

  Therefore, according to the filter 1, 1 </ b> A and the oil / water separator 100, first, the oil adsorbing material 3 and the emulsion are disposed between the plate member 13 as the “second plate member” and the plate member 12 as the “third plate member”. Result of filling the breaking material 4 and then filling the oil adsorbing material 3 and the emulsion breaking material 4 between the plate material 12 as the “third plate material” and the plate material 12 as the “first plate material”. The force required to compress the oil adsorbing material 3 and the emulsion breaking material 4 when the plate 12 is attached to the arrangement part P3, and the oil adsorbing material 3 and the emulsion breaking material 4 are compressed when the plate 12 is attached to the arrangement part P1 Since the force required to do so is sufficiently small, the filters 1 and 1A can be more easily assembled as compared with the configuration in which the plate member 12 as the “third plate member” is not attached to the placement portion P3.

  Furthermore, according to the filters 1 and 1A and the oil / water separator 100, the movement restricting convex portions 21a and 21b are formed at the overlapping positions in the cylinder length direction, so that the plate material as the “third plate material” is formed in the arrangement portion P3. 12 is attached, the contact avoidance recess 32 is aligned with the movement restricting protrusion 21a disposed in the placement portion P1, and the protrusion abutting portion 33 against the movement restricting protrusion 21a is aligned. When the plate 12 in a state of avoiding contact is moved toward the placement portion P3, the plate 12 is prevented from contacting the movement restricting convex portion 21b without rotating the plate 12 with respect to the cylindrical body 11. Therefore, the filters 1 and 1A in which the plate member 12 is attached to the placement portion P3 can be assembled more easily.

  Further, according to the filters 1 and 1A, the two filters 1 and 1A are integrated in a state where the opening 11a in the filter 1 and the opening 11a in the filter 1A are opposed to each other. Alternatively, the flow path of the drain water W can be made sufficiently long without causing a situation in which the length of the filter 1A) along the cylinder length direction becomes excessively long and assembly becomes difficult. Thereby, a filter having a sufficiently high processing capability can be easily assembled.

  The configuration of the “filter” is not limited to the configuration of the filters 1 and 1A. Specifically, the plate material 12) whose length along the circumferential direction of the convex contact portion 33 is longer than the length along the circumferential direction of the concave portion 32 for avoiding contact has been described as an example. Like the plate 12a shown in FIG. 10, along the circumferential direction of the convex contact portion 33a (another example of the “first convex contact portion” and the “third convex contact portion”). The contact avoidance recess 32a rather than the length (the notch notched so that the outer edge of the plate 12a is recessed toward the center: "first contact avoidance recess" and "third contact avoidance" The “first plate member” and the “third plate member” can also be configured such that the length along the circumferential direction of another example of the “concave portion” is longer.

  In this case, the plate member 12a is formed by dispersing a plurality of passage holes 31 in the same manner as the plate member 12 described above, and the passage hole 31 on the center side is more than the passage hole 31 on the outer edge side. It is formed to have a large diameter. Therefore, in the filter 1 described above, even when the plate material 12a is used instead of the plate material 12, not only can the same effect as the filter 1 using the plate material 12 be obtained, but the contact avoiding recess 32a can be contacted. Since it is wider than the avoidance concave portion 32 (the convex contact portion 33a is narrower than the convex contact portion 33), it is difficult for the convex contact portion 33a to contact the movement restricting convex portions 21a and 21b. Therefore, the filter (not shown) configured using the plate material 12a can be formed to be lightweight because it can be attached to the placement portions P1 and P3 more easily and is lighter than the plate material 12. it can.

  Further, a protrusion abutting portion 33 that contacts the movement restricting convex portion 21a as the “first movement restricting convex portion” and the movement restricting convex portion 21b as the “third movement restricting convex portion”, Although the plate materials 12 and 12a in which 33a is formed flat have been described as an example, the configuration of the “first plate material” and the “third plate material” is not limited to this. For example, like the plate member 12b shown in FIG. 11, the movement restricting convex portion 21a as the “first movement restricting convex portion” or the movement restricting convex portion 21b as the “third movement restricting convex portion”. It is also possible to form a rotation restricting concave portion 35 into which the movement restricting convex portions 21a and 21b can be fitted in the convex portion abutting portion 33b that abuts on the convex portion. Similarly, like the plate member 12c shown in FIG. 12, the convex portion abutting portion 33c that abuts the movement restricting convex portions 21a and 21b can be engaged with the movement restricting convex portions 21a and 21b. The convex portions 36 and 36 can also be formed.

The plate members 12b and 12c described above are described above except that the shapes of the convex contact portions 33b and 33c (the presence / absence of the rotation restricting concave portion 35 and the rotation restricting convex portions 36 and 36) are different. It is formed in the same manner as the plate materials 12 and 12a. 11 and 12, arrows A1 and B1 correspond to the “first direction”. Accordingly, when the plate members 12b and 12c are accommodated in the cylinder 11 together with the oil adsorbing material 3 and the like, the arrangement portion P1 is pressed against the movement restricting convex portions 21a and 21b by the oil adsorbing material 3. , P3. For this reason, according to the filter (not shown) and the oil / water separator provided with the plate members 12b and 12c, the convex contact portions 33b and 33c can be pressed against the convex portions 21a and 21b for movement restriction. , in a state attached to the placement portion P1, P3, since the plate member 12b in the cylindrical body 1 in 1, 12c of the rotation is the rotation restricting recess 35 or, is restricted by the rotation restricting protrusion 36, 36 In the cylindrical body 11, it is possible to reliably avoid the situation where these plate members 12b and 12c are detached from the placement portions P1 and P3.

  Further, the filter 1, 1A having a configuration in which the plate material 12 as the “third plate material” is attached to the arrangement portion P3 in the cylindrical body 11 (a configuration in which movement by the movement regulating convex portion 21b is regulated) is taken as an example. However, as in the filter 1B shown in FIG. 13, the plate material 12 as the “third plate material” is not attached to the cylindrical body 11, but as the “first plate material arrangement portion”. The structure accommodated in the cylinder 11 with the oil adsorbent 3 and the emulsion breaking material 4 so that it may be located in the position P3a prescribed | regulated between the arrangement | positioning part P1 and the arrangement | positioning part P2 as a "2nd board | plate material arrangement | positioning part." It can also be adopted. In addition, in this filter 1B and filter 1C referred later, about the component which has the same function as said filter 1 and 1A, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted. The filter container 2a of the filter 1B has the exception that the movement restricting convex portions 21b are not formed at the position P3a (the position corresponding to the arrangement portion P3 in the filter container 2 of the filter 1 and 1A described above), It is configured in the same manner as the filter container 2 of the filters 1 and 1A described above.

  When assembling this filter 1B, as an example, from the opening 11a of the cylinder 11, the oil adsorbing material 3, the emulsion breaking material 4, the plate material 12 as the "third plate material", the oil adsorbing material 3, and the emulsion breaking material 4 are used. And the plate material 12 as the “first plate material”, after placing the plate material 12 on the plate material 13 in this order, and then compressing the oil adsorbing material 3 and the emulsion breaking material 4. 12 is moved toward the plate member 13 in the direction of the arrow A2 and attached to the placement portion P1. Therefore, according to this filter 1B and the oil-water separator provided with this filter 1B, it can be assembled in a short time and easily in the same manner as the filters 1 and 1A described above. Further, according to the filter 1B, since it can be easily disassembled in a short time in the same manner as the filters 1 and 1A, the cost for reusing the filter container 2a can be sufficiently reduced.

  Further, according to the filter 1B and the oil / water separator provided with the filter 1B, the “third plate member arrangement portion” can be moved in a state in which the plate member 12 as the “third plate member” can move up and down with respect to the cylindrical body 11. Is arranged in the arrangement part P3. Therefore, according to this filter 1B and the oil-water separator provided with this filter 1B, between the arrangement part P2 as the “second plate material arrangement part” and the arrangement part P3 as the “third plate material arrangement part” The filling pressure of the oil adsorbing material 3 and the emulsion breaking material 4 and the filling pressure of the oil adsorbing material 3 and the emulsion breaking material 4 between the arranging portion P3 and the arranging portion P1 as the “first plate material arranging portion” It can be made uniform.

  In addition, the filter 1, 1A, 1B in which the plate member 13 as the “second plate member” is fixedly attached to the opening 11b side of the cylindrical body 11 by welding has been described as an example. As an example, FIG. Like the filter container 2b in the filter 1C shown, the plate member 12 as the “second plate member” can be detachably attached to the arrangement portion P2 with respect to the cylindrical body 11. As an example, the filter 1 </ b> C has a cylindrical body 11 in a state where one end of a cylindrical cylinder is housed in a filter case 52 as a pressure vessel closed by a plate 53, as indicated by a broken line in FIG. Is used in a state where the opening 11a is closed by a disc-shaped lid 51. In this case, a passage hole 53 a is formed in the central portion of the plate body 53 of the filter case 52.

  In this filter 1C, the arrangement portion P2 defined on the other side (in this example, the upper side in FIG. 14) of both the openings 11a and 11b in the cylinder 11 changes from the opening 11a in the cylinder 11 to the opening 11b. Four movement restricting projections 21c ("second move restricting protrusions" for restricting the movement of the plate 12 in the cylindrical body 11 in the second direction (in this example, the direction of the arrow A2 shown in FIG. 14). In the state in which the plate portion is formed so as to protrude from the inner wall surface of the cylinder 11 and the plate surface is positioned in the cylinder 11 so as to be orthogonal to the cylinder length direction of the cylinder 11. Contact avoidance recess 32 ("second contact avoidance recess") that can avoid contact of plate 12 with each movement restricting protrusion 21c when moved along the cylinder length direction relative to body 11. Is an example of the movement restricting convex portion 21 in the cylindrical body 11. Are formed on the plate 12 corresponding to the formation position of each of them (in this example, four are formed), and the convex portion contact defined in the outer edge region excluding the formation portion of each contact avoiding concave portion 32 The portion 33 (an example of a “second convex portion contact portion”) is in the second direction (direction of the arrow A2) with respect to each movement regulating convex portion 21c by the oil adsorbing material 3 filled in the filter container 2. The plate member 12 is attached to the placement portion P2 in a state in which the movement in the second direction is restricted by being pressed. Therefore, according to this filter 1C and the oil-water separator provided with this filter 1C, the filter container 2b can be manufactured at a low cost by the amount that welding of the plate 13 to the cylindrical body 11 is not required.

  In this filter 1C, the plate material 12 as the “first plate material”, the plate material 12 as the “second plate material”, and the plate material 12 as the “third plate material” are formed of the same material and in the same shape. Yes. Therefore, according to the filter 1C and the oil / water separator provided with the filter 1C, the component cost can be reduced, and therefore the manufacturing cost of the filter 1C can be sufficiently reduced.

  Furthermore, according to the filter 1C and the oil / water separator provided with the filter 1C, the plurality of passage holes 31 are formed dispersed in the plate 12 as the second plate, thereby flowing into the filter container 2b. As the drain water W that has passed through each passage hole 31 expands in the cylinder radial direction of the cylinder 11, the oil adsorbent 3 can be adsorbed in the entire area of the cylinder 11 in the cylinder radial direction, The oil contained in the drain water W can be removed reliably and efficiently.

  Further, the emulsion breaking material 4 is not an essential component in this type of filter, and a configuration in which the emulsion breaking material 4 does not exist can also be adopted. In this case, in order to avoid the situation where the oil adsorbent 3 protrudes from the passage holes 41 of the plate member 13 and the respective passage holes 31 of the plate member 12, for example, a nonwoven fabric or a woven fabric obtained by processing polypropylene into a sheet ("oil adsorbent" Another example) can be accommodated instead of the emulsion breaking material 4. Moreover, activated carbon can also be accommodated with the oil adsorbent 3 and the like.

  Further, four movement restricting convex portions 21a and four movement restricting convex portions 21b are formed in the cylindrical body 11, and in accordance therewith, four contact avoiding concave portions 32 (32a) and four convex portions. Filters 1 and 1A in which the contact portion 33 (33a) is formed on the plate material 12 (12a) and four movement restricting convex portions 21a are formed on the cylindrical body 11, and accordingly, four contact avoidance are provided. The filter 1B in which the concave portion 32 (32a) and the four convex portion abutting portions 33 (33a) are formed on the plate 12 (12a), the four movement restricting convex portions 21a, the four movement restricting convex portions 21b, and 4 Two movement restricting convex portions 21c are formed in the cylindrical body 11, and in accordance therewith, four contact avoiding concave portions 32 (32a) and four convex portion abutting portions 33 (33a) are formed on the plate 12 (12a). Take filter 1C as an example As described above, the “first movement regulating convex portion”, the “second movement regulating convex portion”, the “third movement regulating convex portion”, and the “first contact avoiding concave portion”. , “Second contact avoiding recess” and “third contact avoiding recess”, “first convex contact portion”, “second convex contact portion” and “third The number of the “projection contact portions” is not limited to this, and can be defined as an arbitrary number of two or more.

  In this case, as an example, when the number of “first movement restriction convex portions”, “second movement restriction convex portions”, and “third movement restriction convex portions” is two, , “Second contact avoidance recess” and “third contact avoidance recess”, “first convex contact portion”, “second convex contact” 4 ”(“ first movement restricting convex portion ”,“ second movement restricting convex portion ”, and“ third movement restricting convex portion ”. The number may be different from the number of “”.

  Moreover, although planar plate-shaped board | plate materials 12 and 12a-12c of planar view were mentioned and demonstrated as an example, "1st board | plate material", "2nd board | plate material", and "3rd board | plate material" are not limited to this, It can be formed in an arbitrary substantially circular shape (a shape that can be rotated in the cylinder 11: another example of “disk shape”) such as an elliptical shape in plan view or a polygonal shape in plan view. Furthermore, the configuration in which the movement restricting convex portions 21a to 21C and the like are retrofitted to the inner wall surface of the cylindrical body 11 by way of example has been described, but the “first movement restricting convex portion” and “second movement restricting portion” are described. The configuration of the “convex portion” and the “third movement restricting convex portion” is not limited to this, and as an example, a part of the inner wall surface of the cylindrical body 11 protrudes toward the central portion of the cylindrical body 11. Each of the movement restricting convex portions can be formed by deforming the cylindrical body 11 by pressing or the like (not shown).

  Further, between the placement portion P1 as the “first plate material placement portion” and the placement portion P2 as the “second plate material placement portion”, the placement portion P3 as the “third plate material placement portion” is 1 The filter 1, 1A to 1C having a configuration in which only the portion is defined has been described as an example, but the “third plate material arrangement portion” defined between the “first plate material arrangement portion” and the “second plate material arrangement portion”. The number of “” is not limited to this, and “third plate member” can be arranged by defining “third plate member placement portions” at any plurality of locations. Further, the number of “movement restricting convex portions” formed in the “first plate material arrangement portion”, the “second plate material arrangement portion” and the “third plate material arrangement portion” is not limited to the same number, A different number of “movement restricting convex portions” can be formed for each plate member arrangement portion. Furthermore, the number of contact avoiding recesses formed in the “first plate member”, “second plate member”, and “third plate member” is not limited to the same number, but may be different from each other. it can.

  In addition, with regard to each plate body, the configuration disposed in each placement portion by “attachment” or “welding” has been described as an example, but in the state of “arranged”, “attachment” and “welding” This includes various arrangement states other than. Similarly, with regard to the oil adsorbing material, the configuration arranged in the filter container in the “filled” state is described as an example, but in the state of “arranged”, various arrangements other than “filling” This includes the state.

DESCRIPTION OF SYMBOLS 100 Oil-water separator 1,1A-1C Filter 2,2a, 2b Filter container 3 Oil adsorption material 4 Emulsion breaking material 11 Cylindrical body 11a, 11b Opening part 12, 12a-12c, 13 Plate material 21a-21c Movement control convex part 31, 41 Passing hole 32, 32a Contact avoidance recess 33, 33a-33c Protrusion contact portion 110 Gas-liquid separation tank P1-P3 Arrangement portion P3a Position W Drain water

Claims (12)

A cylindrical tubular body, a disk-shaped first plate member disposed in a first plate member disposing part defined on one side of both opening parts in the tubular body, and the both opening parts in the tubular body A filter container configured to include a disk-shaped second plate material arranged in a second plate material arrangement portion defined on the other side, and the oil adsorbing material is arranged in the filter container. And a filter configured to be able to adsorb and remove oil contained in the liquid to be processed that is allowed to pass through the filter container along the cylinder length direction of the cylinder, by the oil adsorbent,
The first plate member arrangement portion includes at least two first movements that restrict movement of the first plate member in the cylindrical body in a first direction from the other opening portion toward the one opening portion. The regulating convex part is formed so as to protrude from the inner wall surface of the cylinder,
The first plate member is formed to have a diameter equal to or smaller than the inner diameter of the cylindrical body, has a first passage hole through which the liquid to be processed passes, and the plate surface is orthogonal to the cylinder length direction. When the first plate member is brought into contact with each of the first movement restricting convex portions when the cylinder is moved along the cylinder length direction in the state of being arranged in the cylinder, The first contact avoiding recesses are formed corresponding to the positions where the first movement restricting protrusions are formed on the cylinder, and the first contact avoiding recesses are formed. The first direction with respect to each of the first movement restricting convex portions by the oil adsorbent disposed in the filter container by the first convex portion abutting portion defined in the outer edge region excluding the first direction. The first plate in a state where movement in the first direction is restricted by being pressed by It is arranged in the arrangement portion, and the first movement restricting projection portion can be fitted a rotation restricting recess, and the engageable pair of rotation restricting convex portion to the first movement restricting projection Is formed on the first convex contact portion, and the first convex contact portion is pressed against the first movement restricting convex portion by either one of the first convex contact portion. A filter in which rotation of the first plate member in the cylinder is restricted .   The filter according to claim 1, wherein the first plate member has a plurality of the first passage holes dispersed therein. The second plate member arrangement portion includes at least two second movements that restrict movement of the second plate member in the cylindrical body in a second direction from the one opening portion toward the other opening portion. The regulating convex part is formed so as to protrude from the inner wall surface of the cylinder,
The second plate member is formed to have a diameter equal to or smaller than the inner diameter of the cylindrical body, has a second passage hole through which the liquid to be processed passes, and the plate surface is orthogonal to the cylinder length direction. As described above, when the cylinder is moved along the cylinder length direction with respect to the cylinder, it is possible to avoid contact of the second plate member with the second movement restricting convex portions. The second contact avoiding recesses are respectively formed corresponding to the formation positions of the second movement restricting protrusions on the cylinder, and the second contact avoiding recess forming portions are formed. The second convex contact portion defined by the outer edge region excluding the second movement restricting convex portion is pressed against the second movement restricting convex portion by the oil adsorbing material in the second direction. The second plate member arrangement portion is disposed in a state where the movement of the second plate member is restricted. Filter of the second aspect.   The filter according to any one of claims 1 to 3, wherein a plurality of the second passage holes are formed in the second plate member in a dispersed manner.   The filter according to claim 3 or 4, wherein the first plate member and the second plate member are formed of the same material and in the same shape.   A third passage hole is formed which is formed in a disc shape having a diameter equal to or smaller than the inner diameter of the cylindrical body and allows the liquid to be treated to pass through, and is positioned between the first plate member and the second plate member. The filter according to any one of claims 1 to 5, further comprising a third plate member disposed in the cylindrical body. At least two third movements for restricting movement of the third plate member in the cylinder in the first direction are provided in a third plate member arrangement portion in which the third plate member is arranged in the cylinder. The regulating convex part is formed so as to protrude from the inner wall surface of the cylinder,
When the third plate member is moved along the cylinder length direction with respect to the cylinder body in a state where the plate surface is disposed in the cylinder body so that the plate surface is orthogonal to the cylinder length direction, 3rd contact avoidance recessed parts which can avoid contact of the 3rd board material to 3 movement control convex parts correspond to the formation position of each 3rd movement control convex part in the cylinder Each of the third movement abutment portions defined in the outer edge region excluding the formation portion of each of the third abutment avoidance recesses is formed by the oil adsorbing material for each third movement restriction. The filter according to claim 6, wherein the filter is arranged in the third plate material arrangement portion in a state in which the movement in the first direction is pressed against the convex portion in the first direction.   The filter according to claim 6 or 7, wherein a plurality of the third passage holes are formed in the third plate member in a dispersed manner.   The filter according to claim 7 or 8, wherein the first plate member and the third plate member are formed of the same material and in the same shape.   The filter according to claim 9, wherein the first movement restricting convex portion and the third movement restricting convex portion are formed at positions where they overlap in the tube length direction.   Two filters according to any one of claims 1 to 10, wherein the one opening in one of the filters and the one opening in the other of the filters are opposed to each other. A filter in which both filters are integrated.   It has the filter in any one of Claim 1 to 11, and is contained in the said process target liquid by allowing the said process target liquid to pass through the inside of the said container for filters along the cylinder length direction of the said cylinder. An oil-water separator for removing oil by adsorbing the oil adsorbent.

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