JP6412387B2 - In-pipe purification device and method of manufacturing the in-pipe purification device - Google Patents

Description

  The present invention relates to an in-pipe purification device and a method for manufacturing the in-pipe purification device. More specifically, the present invention relates to an easy-to-manufacture in-pipe purification apparatus to which a carrier for supporting microorganisms is fixed and a method for manufacturing the same.

  Conventionally, sewage is transferred to a sewage treatment facility through a pipeline, and all sewage purification processing is performed at the sewage treatment facility. Therefore, in the sewage treatment facility, the equipment cost or equipment space accompanying the purification equipment is required.

  Therefore, in order to reduce the burden on the sewage treatment facility, a method for purifying sewage in the pipeline using microorganisms has been proposed. For example, International Publication No. 2013/172288 (Patent Document 1) has a double tube structure composed of an outer tube wall and a water permeable inner tube, and a microorganism carrier in the gap between the double tube structures. Is disclosed.

International Publication No. 2013/172288 Pamphlet

  In the above-described purification apparatus for pipe tubs, a cuboid foam piece is used as the microbial carrier, and the microbial carrier is filled in a space in the water purification section in a free state or in a state of being accommodated in a small-diameter pipe. Is done.

  In order to prevent clogging in the pipeline (specifically, clogging due to retention of foreign matter or the like in the drainage), the present inventors have set the pipeline so that the microbial carrier does not move as an accommodation mode of the microbial carrier. We focused on fixing to the internal purification device. However, since the space for accommodating the carrier is narrow, the workability when fixing the carrier becomes a problem, and the ease of manufacture is lacking. Therefore, an object of the present invention is to provide an in-pipe purification apparatus having good workability when a microorganism carrier is fixed.

The present inventors have found that the object of the present invention can be achieved by configuring an in-pipe purification apparatus using split members that can be combined, and have completed the present invention.
The present invention provides the in-pipe purification device according to (1) to (4) below, the in-pipe purification system according to (5), and the method for manufacturing the in-pipe purification device according to (6). Including.

(1)
The in-pipe purification apparatus of the present invention should be installed in a pipe. The in-pipe purification device includes a bending member, a partition member, and a carrier.
The bending member has a curved surface along the inner wall surface of the pipe line. The partition member has a hole, spans between both side edges of the bending member, and partitions the inside of the pipe line. The carrier is fixed to the concave curved surface of the bending member.

With this configuration, since the carrier is fixed to the curved member, clogging hardly occurs when the in-pipe purification device is used. Further, by including the partition member, when using the in-pipe purification device, the pipe space above the partition member is the flow rate securing unit, and the pipe space below the partition member is the purification unit. Can function as. Since the bending member and the partition member are configured as members independent from each other, the space inside the coupling structure of the bending member and the partition member (hereinafter referred to as a separator) is narrow. At the time of manufacturing the in-pipe purification device, the microorganism carrier can be fixed in a state where both members are dissociated. That is, the workability at the time of fixing the microorganism carrier is improved.
In the above (1), the carrier may be directly fixed to the concave curved surface of the bending member, or may be indirectly fixed.

(2)
It is preferable that the bending member has a first fitting portion at a side edge portion, and the partition member has a second fitting portion at a side edge portion. In this case, the first fitting portion and the second fitting portion are fitted to each other.

  With this configuration, since the bending member and the partition member are coupled by fitting, the structure of the separator is further stabilized. Note that an adhesive may be interposed between the first fitting portion of the bending member and the second fitting portion of the partition member.

(3)
The in-pipe purification apparatus can include a carrier fixing member. In this case, the carrier holding member holds the carrier and is fixed to the concave curved surface of the bending member. Therefore, the carrier is fixed to the concave curved surface via the carrier fixing member.

  With this configuration, the carrier is stably fixed to the in-pipe purification device via the carrier fixing member. For this reason, the carrier is difficult to peel off during use and maintenance of the in-pipe purification device, and the in-pipe purification device is suitable for longer term use.

(4)
When the in-pipe purification device is installed in the pipe, in a cross-sectional view perpendicular to the axis of the pipe, the carrier is located at a position facing the lowest point of the pipe and a straight line connecting the axis. A pair may be arranged.

  With this configuration, the carrier fixing operation at the time of manufacturing the in-pipe purification device is facilitated despite the narrow space in the separator in which the carrier is accommodated. Further, when using the in-pipe purification device, the carrier can be brought into contact with the air when the amount of drainage in the purification unit is small, and the purification function by the carrier can be exhibited when the amount of drainage in the purification unit is large.

(5)
The in-pipe purification system according to the present invention includes the pipe and the in-pipe purification according to (1) to (4) installed in the pipe so as to extend in an axial direction of the pipe. And a device.

  With this configuration, since the carrier is fixed to the curved member, clogging hardly occurs when the in-pipe purification device is used. Further, by including the partition member, when using the in-pipe purification device, the pipe space above the partition member is the flow rate securing unit, and the pipe space below the partition member is the purification unit. Can function as. Furthermore, since the bending member and the partition member are configured as members independent from each other, the two members are dissociated when the in-pipe purification device is manufactured, even though the space inside the separator is narrow. The microorganism carrier can be fixed by That is, the workability at the time of fixing the microorganism carrier is improved. Further, since the separator basically has a closed cross-sectional structure, it has excellent deformation resistance.

(6)
The manufacturing method of the in-pipe purification apparatus of the present invention includes a carrier fixing step and a lid installation step. The lid installation step is performed after the carrier fixing step. In the carrier fixing step, a curved plate-shaped curved member is prepared, and a carrier for supporting microorganisms is fixed to the concave curved surface of the curved member. In the covering step, a perforated member is bridged between the side edges of the bending member.

With this configuration, since the curved member and the perforated member (partition member), which are members independent from each other, are used, an in-pipe purification apparatus in which the microorganism carrier is fixed in a narrow space in the separator can be easily manufactured. Can do. That is, since the microbial carrier can be fixed in a state where both members are dissociated, workability at the time of fixing the microbial carrier is improved.
The perforated member forms a partition member that divides the pipe space into an upper side and a lower side when the in-pipe purification device is used, and the upper pipe space is divided into a flow rate securing unit and a lower side. The space in the pipeline can function as a purification unit.

1 is a partially cutaway view schematically showing an in-pipe purification system using the in-pipe purification device of the first embodiment. It is a typical external appearance perspective view of the in-pipe purification apparatus (part) of FIG. It is a disassembled perspective view of the in-pipe purification apparatus (part) of FIG. It is typical sectional drawing at the time of cut | disconnecting in the surface containing the IV-IV line | wire of FIG. It is a typical external appearance perspective view of the carrier fixing member of FIG. It is a typical sectional view of the in-pipe purification device of the 1st modification. FIG. 7 is a schematic external perspective view of the carrier fixing member of FIG. 6. It is a typical sectional view of the in-pipe purification device of the 2nd modification. It is a typical external appearance perspective view of the carrier fixing member of FIG. It is typical sectional drawing of the purification apparatus in a pipe line of a 3rd modification. It is a typical external appearance perspective view of the carrier fixing member of FIG. It is a typical sectional view of the in-pipe purification device of the 4th modification. It is a typical external appearance perspective view of the carrier fixing member of FIG. It is typical sectional drawing of the purification apparatus in a pipe line of a 5th modification. It is a typical external appearance perspective view of the carrier fixing member of FIG. It is typical sectional drawing of the purification apparatus in a pipe line of the 6th modification. FIG. 17 is a schematic external perspective view of the carrier fixing member of FIG. 16. It is typical sectional drawing of the purification apparatus in a pipe line of the 7th modification. It is a typical external appearance perspective view of the carrier fixing member of FIG. It is a typical sectional view of the in-pipe purification device of the 8th modification. It is a typical external appearance perspective view of the carrier fixing member of FIG. It is a typical sectional view of the in-pipe purification device of a 2nd embodiment. It is a typical sectional view of the in-pipe purification device of a 3rd embodiment. It is a typical external appearance perspective view of the carrier fixing member of FIG. It is a typical sectional view of the in-pipe purification device of a 4th embodiment. FIG. 26 is a schematic external perspective view of the carrier fixing member of FIG. 25. It is a typical sectional view of the in-pipe purification device of a 5th embodiment. It is typical sectional drawing of the purification apparatus in a pipe line of 6th Embodiment. It is typical sectional drawing of the purification apparatus in a pipe line of 7th Embodiment. It is a typical sectional view of the in-pipe purification device of an 8th embodiment. It is typical sectional drawing of the purification apparatus in a pipe line of 9th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same elements are denoted by the same reference numerals, and their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[First Embodiment]
FIG. 1 is a partially cutaway view schematically showing an in-pipe purification system using the in-pipe purification device of the first embodiment. FIG. 2 is a schematic external perspective view of the in-pipe purification device (part) of FIG. FIG. 3 is an exploded perspective view of the in-pipe purification device (part) of FIG. FIG. 4 is a schematic cross-sectional view when cut along a plane including the IV-IV line in FIG. 2. In the following, for the sake of convenience, the upward direction in FIG. 4 will be described as being upward, and the downward direction being downward. These directions substantially coincide with the absolute direction when the in-pipe purification apparatus is used, but do not necessarily mean the absolute direction when the in-pipe purification apparatus is manufactured.

[Basic configuration]
An in-pipe purification system 900 shown in FIG. 1 includes a pipe 910 and an in-pipe purification device 100 provided in the pipe 910. As shown in FIG. 2 to FIG. 4, the separator 200, the carrier fixing member 300, and the carrier 400 that should carry the microorganisms are included.

  The separator 200 is a long body having a certain cross-sectional shape that extends in the axial direction of the pipe 910 (see FIG. 1). The length of the separator 200 in the axial direction corresponds to the length of the conduit 910. (In FIGS. 2 and 3, a part of this elongated body is displayed for convenience.) As shown in FIGS. 2 and 4, the separator 200 includes a bending member 210 and a partition member 250. The The bending member 210 and the partition member 250 are coupled to each other at both side edges (that is, left and right side edges). As shown in FIG. 4, the cross-sectional shape of the separator 200 is axisymmetric with respect to a straight line passing through the axis O of the pipe 910 and the lowest point of the pipe 910. And the separator 200 is comprised so that it may have a closed cross section except the part which has the water-permeable hole 254 (after-mentioned).

[Bending member and partition member]
As shown in FIG. 4, the bending member 210 has a concave curved surface 211, a convex curved surface 212, and a fitting portion 217.
Both the concave curved surface 211 and the convex curved surface 212 have a circular arc shape in cross section, and form a curved plate shape. A carrier 400 is fixed to the concave curved surface 211 via a carrier fixing member 300 (described later). The convex curved surface 212 is along a part of the inner wall surface of the pipe 910. Thereby, the separator 200 can be installed along the inner wall surface of the pipe line 910.

  The fitting portions 217 are arranged in parallel with the extending direction of the separator 200 on the left and right side portions of the bending member 210. The fitting portion 217 is formed in a male shape protruding from the concave curved surface 211 and is fitted to a fitting portion 257 of a partition member 250 described later. By configuring the fitting portion 217 in this way, the separator 200 can be easily along the inner wall of the pipe 910.

  The partition member 250 is a deformed plate-shaped perforated member in which water-permeable holes 254 (described later) are formed. As shown in FIG. 4, when the in-pipe purification device 100 is provided in the pipe 910, the partition member 250 divides the space in the pipe 910 into a lower purification unit 911 and an upper flow rate securing unit 915. And divide into The partition member 250 has a shape in which the central portion (that is, the portion on the target axis) is lower than the left and right side portions. In the present embodiment, the partition member 250 has a flow velocity securing portion 251 on the axis of symmetry, and the pair of plane portions 253, the pair of inclined portions 255, and the pair of pairs from the side closer to the target axis toward the far side. The fitting part 257 is formed in this order. The pair of flat portions 253, the pair of inclined portions 255, and the pair of fitting portions 257 are respectively arranged in parallel with the extending direction of the separator 200.

  As shown in FIG. 4, the flow velocity securing part 251 constituting the lowest part of the central part of the partition member 250 is curved so as to protrude downward. With such a curved shape, a flow rate during a small amount of drainage in the pipeline is ensured.

  As shown in FIG. 4, a water-permeable hole 254 is formed in the flat portion 253. The water permeable hole 254 discharges the drainage to the purification unit 911 when the drainage in the flow rate securing unit 915 exceeds the capacity of the flow rate securing unit 251. A plurality of water permeable holes 254 are provided along the extending direction of the separator 200 (see FIG. 1). This imparts water permeability to the separator 200. In addition, since the flat portion 253 is flat in the horizontal direction, the workability of drilling the water permeable holes 254 is good during manufacturing.

  As shown in FIG. 4, the inclined portion 255 is formed so as to rise from the flat portion 253 toward the inner wall of the duct 910 and gradually rise along the inner wall surface. Thereby, it is easy to guide the waste water in the flow rate securing unit 915 to the purification unit 911, and it is easy to prevent clogging between the partition member 250 and the inner wall of the pipe line 910. In the present embodiment, the shape of the inclined portion 255 is flat, but a curved shape that continues smoothly from the flat portion 253 so as to protrude downward from the flat surface of the inclined portion 255 shown in FIG. It may have a curved slope.

  The fitting portion 257 is formed in a female shape and is fitted to the fitting portion 217 of the bending member 210 described above. In this embodiment, the fitting part 217 and the fitting part 257 are structurally configured to be detachable. For this reason, an adhesive is not required for the connection between the bending member 210 and the partition member 250. However, in the present embodiment, it is not particularly excluded to use an adhesive supplementarily for joining the bending member 210 and the partition member 250. By using an adhesive between the bending member 210 and the partitioning member 250, the bending member 210 and the partitioning member 250 can be combined more stably.

  When the bending member 210 and the partition member 250 are configured as described above, the separator 200 is disposed below the center of the internal space of the pipe 910 when provided in the pipe 910 as shown in FIG. It is formed to occupy a part of the side. That is, the uppermost point of the separator 200 is formed so as to be positioned below the horizontal position of the axis O of the pipe 910 with a drop E therebetween. By separating the head E, installation in the pipe 910 is facilitated.

  As described above, the separator 200 of the present invention is configured to have a closed cross section except for the portion having the water permeable holes 254. For this reason, the separator 200 of the present invention is excellent in deformation resistance. Thus, the separator 200 can be formed relatively thin while maintaining deformation resistance.

Both the bending member 210 and the partition member 250 can be made of resin. In this case, the difference in resin constituting each of the bending member 210 and the partition member 250 is not limited. Examples of the resin include thermoplastic resins such as vinyl chloride resins and olefin resins, and thermosetting resins such as epoxy resins and unsaturated polyester resins. The resin may be in the form of a composite material, that is, FRP (fiber reinforced plastic) reinforced with a fiber material such as glass fiber or carbon fiber.
For the bending member 210 and the partition member 250, a manufacturing method corresponding to the type is selected. For example, it can be manufactured by extrusion molding of a thermoplastic resin. In this case, the outlet shape can be manufactured by extrusion using a mold having the same cross-sectional shape as each of the bending member 210 and the partition member 250. For example, in the case of a thermosetting resin and FRP, it can be produced by a hand lay-up method, a pultrusion method, or the like.

[Carrier fixing member]
As shown in FIGS. 2 to 4, the carrier fixing member 300 is fixed to the concave curved surface 211 of the bending member 210 constituting the separator 200. In the present embodiment, as shown in FIGS. 3 to 5, the carrier fixing member 300 includes a holding part 310 and a fixing part 320 that are integrally formed.

  The holding part 310 and the fixing part 320 are formed so as to constitute a deformed rectangular closed cross section. The holding part 310 holds the outer surface of the carrier 400 so as to cover the outer surface (in this embodiment, the upper surface and both the left and right side surfaces). The fixing portion 320 is provided below the holding portion 310 and has a fixed curved surface 321 that covers the entire lower surface of the carrier 400 and has a shape along the concave curved surface 211 of the separator 200. With such a closed cross-sectional structure, the carrier 400 is held from the direction of the entire outer surface thereof, so that stable holding is possible.

  The carrier fixing member 300 is fixed at a position where the height N of the narrowest portion in the purification unit 911 space can be secured. It is preferable to secure the height N of the narrowest portion in the purification unit 911 space from the viewpoint of preventing clogging between the carrier fixing member 300 and the partition member 250.

The depth of the holding portion 310 (length in the extending direction of the separator 200) is appropriately set from the viewpoint of favorably holding the carrier 400, securing the exposed portion of the surface of the carrier 400, and the like. In the present embodiment, the depth is constituted by 4% of the diameter of the inner periphery of the pipe 910.
The carrier fixing member 300 may have the same depth throughout.

  The fixed curved surface 321 has a shape along the concave curved surface 211 of the bending member 210 of the separator 200 and is fixed in contact with the concave curved surface 211. By providing the fixed curved surface 321, a sufficient contact area with the concave curved surface 211 can be secured. The fixed curved surface 321 is fixed between the surface of the separator 200 via an adhesive.

  In the axial direction of the pipe line 910, the location and interval at which the carrier fixing member 300 is provided are not particularly limited. For example, with respect to one pipe line 910, you may provide in two places of the axial direction both ends, three places of the said both ends and center part, or more places.

  The carrier fixing member 300 can be made of resin. Examples of the resin include thermoplastic resins such as vinyl chloride resins and olefin resins, and thermosetting resins such as epoxy resins and unsaturated polyester resins. The resin may be in the form of a composite material, that is, FRP (fiber reinforced plastic) reinforced with a fiber material such as glass fiber or carbon fiber. The carrier fixing member 300 may be made of the same material as the separator 200 or may be different. The carrier fixing member 300 can be manufactured by injection molding. In the case of FRP, it can be produced by a hand lay-up method, a resin transfer molding method (RTM) method or the like.

  The carrier fixing member 300 is fixed to the curved member 210 of the separator 200 by using an adhesive between the fixed curved surface 321 and the concave curved surface 211. The adhesive can be appropriately determined by those skilled in the art in consideration of the material of the bending member 210 and the material of the carrier fixing member 300. For example, a rubber adhesive mainly composed of styrene-butadiene, a solvent-based adhesive, and the like can be given.

[Carrier]
As shown in FIGS. 1 and 3, the carrier 400 is a wide and long body extending in the axial direction of the pipe 910. The length of the carrier 400 in the axial direction corresponds to the length of the conduit 910. As the carrier 400, a structure having a large specific surface area is used without particular limitation. For example, a porous material (for example, an inorganic porous body, an inorganic foam, a resin foam, etc.), a fibrous material (for example, a woven fabric, a nonwoven fabric, a single fiber body, a net-like body, etc.), a layered material (for example, a sheet laminate) Etc.). The fine pores of the porous material are preferably continuous pores. In the present embodiment, a resin foam is used. Examples of the resin include olefin resins (particularly polyethylene), urethane resins, vinyl chloride resins, acrylic resins, and the like.

  The shape of the carrier 400 may be any shape that can be held by the carrier fixing member 300, and is a long body having a rectangular cross section in the present embodiment. In this embodiment, since the carrier 400 is a foam resin, the size of the cross-sectional shape of the carrier 400 may be designed to be slightly larger than the inside of the holding portion 310 of the carrier fixing member 300. In this case, when the carrier 400 is held by the holding portion 310 of the carrier fixing member, the carrier 400 is contracted and deformed in the bending holding portion 310, so that the carrier 400 is stably held by the holding portion 310. In addition, it can fix more stably by interposing an adhesive agent between the carrier 400 and the carrier fixing member 300.

  For example, the carrier 400 is set so as to be reduced and deformed and screwed into the inside of the carrier fixing member 300, and then the carrier curved surface 321 of the carrier fixing member 300 is grounded to the concave curved surface 211 of the curved member 210, thereby fixing the carrier. It can be stably fixed to the bending member 210 via the member 300. In the present embodiment, it is possible to fix more stably by using an adhesive between the carrier 400 and the bending member 200 at the place where the carrier fixing member 300 is provided. Further, it may be more stably fixed by using an adhesive between the carrier 400 and the bending member 200 at a place where the carrier fixing member 300 is not provided.

  The size of the carrier 400 in the conduit 910 (width w and height h in FIG. 4) is determined in consideration of the purification efficiency and the size allowed for the carrier fixing member 300 in the purification unit 911. be able to. In the present embodiment, the width w is 10% of the inner peripheral length of the conduit 910, and the height h is 2% of the inner peripheral length of the conduit 910.

  Within the pipe 910, the carrier 400 is disposed to face the surface connecting the axis O and the lowest position of the pipe 910. The arrangement position of the carrier 400 in the pipe line 910 can be determined in consideration of the purification efficiency and the like. For example, the separation distance i of the carrier 400 may be disposed so as to be 10% or more and 40% or less of the inner circumference of the pipe 910. The separation distance i being equal to or greater than the lower limit is that the flow rate in the purification unit 911 is ensured even when the water level of the purification unit 911 is low, the carrier 400 is brought into contact with air, and clogging is prevented. From the viewpoint of obtaining good purification efficiency, the carrier 400 is effectively brought into contact with the waste water when the water level rises.

[Manufacture of pipe purification equipment]
The in-pipe purification device 100 is manufactured through a carrier fixing process and a lid-setting process performed thereafter.
In the carrier fixing step, a curved plate-shaped bending member 210 is prepared, and the carrier 400 is fixed to the concave curved surface 211 of the bending member 210. The bending member 210 may be prepared by a method appropriately selected by those skilled in the art, such as extrusion molding.

  In order to fix the carrier 400, for example, the carrier fixing member 300 first holds the carrier 400, and then the carrier fixing member 300 in a state where the carrier 400 is held is fixed to the concave curved surface 211 using an adhesive. May be. Alternatively, first, the carrier fixing member 300 may be fixed to the concave curved surface 211 using an adhesive, and then the carrier 400 may be held on the carrier fixing member 300 fixed to the concave curved surface 211. The carrier fixing member 300 may also be prepared by a method appropriately selected by those skilled in the art, such as injection molding.

  In the covering step, a perforated member, that is, a partition member 250 is bridged between both side edge portions of the bending member 210 to cover it. In this case, the fitting portions 217 provided on both side edge portions of the bending member and the fitting portions 257 provided on both side edge portions of the perforated member, that is, the partition member 250 are fitted and locked together. The perforated member, that is, the partition member 250 may also be prepared by a method appropriately selected by those skilled in the art, such as extrusion molding.

  The manufactured in-pipe purification apparatus 100 is installed in the pipe 910 (see FIG. 1), thereby constituting an in-pipe purification system 900. Since the concave curved surface 211 of the bending member 210 is shielded by the perforated member, that is, the partition member 250, the duct 910 space is partitioned into the lower purification unit 911 and the upper flow rate securing unit 915.

  When the in-pipe purification system 900 is started, drainage is caused to flow through the pipe 910 and the drainage is brought into contact with the carrier 400 in the purification unit 911. As a result, a biofilm is formed on the surface of the carrier 400. Since the carrier 400 has a large specific surface area as described above, a biofilm can be formed efficiently. When the biofilm comes into contact with the wastewater, useful microorganisms in the biofilm purify the wastewater. Further, when the drainage level in the purification unit 911 is raised and lowered, the biofilm attached to the carrier 400 can be brought into contact with air as well as being immersed in the wastewater. Therefore, aerobic microorganisms that are useful microorganisms can also be effectively propagated.

[Modification]
Hereinafter, first to eighth modifications having modified shapes of the carrier fixing member 300 will be described. In these modified examples, differences from the first embodiment will be mainly described, and description of the same points will be omitted.

[First Modification]
FIG. 6 is a schematic cross-sectional view of the in-pipe purification apparatus of the first modification, and corresponds to FIG. 4 of the first embodiment. FIG. 7 is a schematic external perspective view of the carrier fixing member of FIG. 6 and corresponds to FIG. 5 of the first embodiment.

  The in-pipe purification apparatus 100a shown in FIG. 6 includes a separator 200 (a bending member 210 and a partition member 250), a carrier fixing member 300a, and a carrier 400. As shown in FIGS. 6 and 7, the carrier fixing member 300 a includes a holding part 310 a and a fixing part 320 a that are integrally formed, and is formed so that the cross section becomes an open cross section of a deformed portion rectangular shape.

  The holding part 310a holds the outer surface of the carrier 400 (in this modification, the upper surface and one side surface) so as to cover it. The holding portion 310a has a holding protrusion 311a that protrudes toward the carrier 400 side. The holding protrusion 311a bites the carrier 400 and presses it down to hold the carrier 400 more stably. In the present modification, the holding projection 311a has a quadrangular pyramid shape, but may be any shape as long as it can bite into the carrier 400, and has a shape having a tapered portion (for example, a triangular prism or a cone). Is preferred.

  The holding protrusion 311a may be provided on the fixing portion 320a and may be formed so as to protrude from the fixing portion 320a to the carrier 400 side. Furthermore, the holding protrusion 311a may be provided on both the holding portion 310a and the fixing portion 320a. The same applies to other modified examples described later.

  The fixing portion 320a is provided below the holding portion 310a, covers a part of the lower surface of the carrier 400, and has a fixed curved surface 321a shaped along the concave curved surface 211 of the bending member 210.

  For example, after the carrier 400 is set so as to be sandwiched between the holding portion 310a and the fixing portion 320a of the carrier fixing member 300a, the fixed curved surface 321a of the carrier fixing member 300a is grounded to the concave curved surface 211 of the bending member 210. Thus, it can be stably fixed to the bending member 210 via the carrier fixing member 300a.

[Second Modification]
FIG. 8 is a schematic cross-sectional view of the in-pipe purification apparatus of the second modification, and corresponds to FIG. 4 of the first embodiment. FIG. 9 is a schematic external perspective view of the carrier fixing member of FIG. 8 and corresponds to FIG. 5 of the first embodiment.

  The in-pipe purification apparatus 100b shown in FIG. 8 includes a separator 200 (a bending member 210 and a partition member 250), a carrier fixing member 300b, and a carrier 400. As shown in FIGS. 8 and 9, the carrier fixing member 300b includes an integrally formed holding portion 310b and a fixing portion 320b, and is formed so that the cross section becomes an open cross section having a deformed portion rectangular shape.

  The holding part 310b holds the outer surface of the carrier 400 (in this variation, the upper surface and one side surface) so as to cover it. A plurality of holding protrusions 311a are formed on the holding portion 310b to hold the carrier 400 more stably. The fixing portion 320b is provided below the holding portion 310b, and has a fixed curved surface 321b that covers the entire lower surface of the carrier 400 and has a shape along the concave curved surface 211 of the bending member 210.

  For example, the carrier 400 is set so as to push and spread between the holding portion 310b and the fixing portion 320b of the carrier fixing member 300b and then sandwiched therebetween, and then the fixing curved surface 321b of the carrier fixing member 300b is recessed in the bending member 210. By grounding to the curved surface 211, it can be stably fixed to the bending member 210 via the carrier fixing member 300b.

[Third Modification]
FIG. 10 is a schematic cross-sectional view of the in-pipe purification apparatus of the third modification, and corresponds to FIG. 4 of the first embodiment. FIG. 11 is a schematic external perspective view of the carrier fixing member of FIG. 10 and corresponds to FIG. 5 of the first embodiment.

  The in-pipe purification apparatus 100c shown in FIG. 10 includes a separator 200 (bending member 210 and partition member 250), a carrier fixing member 300c, and a carrier 400. As shown in FIGS. 10 and 11, the carrier fixing member 300c has a holding part 310c and a fixing part 320c. The holding part 310c and the fixing part 320c are integrally formed.

  As shown in FIGS. 10 and 11, the holding portion 310 c is formed so that the cross section becomes an open cross section with a deformed portion rectangular shape, and at least a part of the outer surface of the carrier 400 (in this variation, the upper surface and Hold it so that it covers the left and right sides. A holding protrusion 311a is formed on the holding portion 310c to hold the carrier 400 more stably.

The fixing portion 320c contributes to fixing the carrier fixing member 300c to the bending member 210. The fixed part 320c has fixed curved surfaces 321c and 321c ′ and a fixed surface 325c.
Among these, the fixed curved surfaces 321 c and 321 c ′ have a shape along the concave curved surface 211 of the bending member 210 and are fixed in contact with the concave curved surface 211. The fixed curved surface 321c extends farther from the axis of symmetry than the holding portion 310c, thereby ensuring a sufficient ground contact area to the concave curved surface 211. The fixed curved surface 321c ′ is provided below the holding portion 310c, covers a part of the lower surface of the carrier 400, and contacts the concave curved surface 211. This assists in fixing the carrier 400 to the bending member 210 via the carrier fixing member 300c.

  The fixed surface 325c has a shape along the partition member 250 (in the present embodiment, near the boundary between the flat surface portion 253 and the inclined portion 255), and is fixed in contact with the partition member 250, whereby the fixed curved surfaces 321c and 321c. Assist with fixing by '.

[Fourth Modification]
FIG. 12 is a schematic cross-sectional view of the in-pipe purification apparatus of the fourth modified example, and corresponds to FIG. 4 of the first embodiment. 13 is a schematic external perspective view of the carrier fixing member of FIG. 12, and corresponds to FIG. 5 of the first embodiment.

  An in-pipe purification apparatus 100d shown in FIG. 12 includes a separator 200 (curving member 210 and partition member 250), a carrier fixing member 300d, and a carrier 400. As shown in FIGS. 12 and 13, the carrier fixing member 300d includes a holding portion 310d and a fixing portion 320d.

  The holding part 310d and the fixing part 320d are member pieces independent of each other, and are formed so as to form a closed section having a deformed rectangular shape by being combined. The holding portion 310d holds the outer surface of the carrier 400 so as to cover the outer surface (approximately the upper surface only in this modification). A plurality of holding protrusions 311a are formed on the holding portion 310d to hold the carrier 400 more stably. The fixed portion 320d is formed in a shape that covers both the left and right side surfaces of the outer surface of the carrier 400 and receives the lower surface, and has a fixed curved surface 321d that is shaped along the concave curved surface 211 of the bending member 210.

  One end portions of the holding portion 310d and the fixed portion 320d are pivotally attached to each other so as to be freely rotatable (in the direction of the arrow R), and the other end portions are formed so as to be locked with each other. As a result, the carrier fixing member 300d is freely in a closed state shown in FIG. 13A and an open state shown in FIG. 13B. For example, the carrier 400 is set with the carrier fixing member 300d opened, and after closing, the fixed curved surface 321d of the carrier fixing member 300d is grounded to the concave curved surface 211 of the curved member 210, thereby allowing the carrier fixing member 300d to pass through the carrier fixing member 300d. Thus, it can be stably fixed to the bending member 210.

[Fifth Modification]
FIG. 14 is a schematic cross-sectional view of the in-pipe purification apparatus of the fifth modification, and corresponds to FIG. 4 of the first embodiment. FIG. 15 is a schematic external perspective view of the carrier fixing member of FIG. 14 and corresponds to FIG. 5 of the first embodiment.

  The in-pipe purification apparatus 100e shown in FIG. 14 includes a separator 200 (bending member 210 and partition member 250), a carrier fixing member 300e, and a carrier 400. As shown in FIGS. 14 and 15, the carrier fixing member 300e includes a holding part 310e and a fixing part 320e.

  Each of the holding portion 310e and the fixing portion 320e is a curved, independent member piece, and is formed so as to constitute a leaf-shaped closed cross section when combined. The holding portion 310e is configured to have a curved cross section that protrudes upward, and holds the outer surface of the carrier 400 (in this modification, at least the upper surface). The fixing portion 320e is provided below the holding portion 310e, and has a fixed curved surface 321e that covers at least the entire lower surface of the carrier 400 and has a shape along the concave curved surface 211 of the bending member 210. Although the holding protrusion is not formed on the holding portion 310e, the carrier 400 is deformed and held so as to be crushed from above by the curved shape of the holding portion 310e, and thus stable holding is possible.

  One end portions of the holding portion 310e and the fixing portion 320e are pivotably attached to each other (in the direction of the arrow R), and the other end portions are formed so as to be locked with each other. For example, the carrier 400 is set with the carrier fixing member 300e opened, and after closing, the fixed curved surface 321e of the carrier fixing member 300e is grounded to the concave curved surface 211 of the curved member 210, thereby allowing the carrier fixing member 300e to pass through the carrier fixing member 300e. Thus, it can be stably fixed to the bending member 210.

[Sixth Modification]
FIG. 16 is a schematic cross-sectional view of the in-pipe purification apparatus of the sixth modified example, and corresponds to FIG. 4 of the first embodiment. FIG. 17 is a schematic external perspective view of the carrier fixing member of FIG. 16 and corresponds to FIG. 5 of the first embodiment.

  The in-pipe purification apparatus 100f shown in FIG. 16 includes a separator 200 (bending member 210 and partition member 250), a carrier fixing member 300f, and a carrier 400. As shown in FIGS. 16 and 17, the carrier fixing member 300f includes a holding portion 310f and a fixing portion 320f.

  Each of the holding portion 310f and the fixing portion 320f is a curved, completely independent member piece, and is formed so as to constitute a deformed rectangular closed cross section when combined. The holding portion 310f holds the outer surface of the carrier 400 (in this embodiment, only the upper surface only) so as to cover it. A plurality of holding protrusions 311a are formed on the holding portion 310f to hold the carrier 400 more stably. The fixing portion 320f is formed in a shape that covers the left and right side surfaces of the outer surface of the carrier 400 and receives the lower surface, and has a fixed curved surface 321f that is shaped along the concave curved surface 211 of the separator 200.

  Locking portions are formed on the holding portion 310f and the fixing portion 320f, respectively. Each locking part is formed in a shape that can be fitted and locked to each other. The holding portion 310f and the fixing portion 320f constitute a closed carrier fixing member 300f when the locking portion is fitted and locked. If the locking part is detachable, the holding part 310f and the fixing part 320f are freely closed and open. The carrier 400 is set through the carrier fixing member 300f by setting the carrier fixing member 300f in an open state and, after closing, for example, grounding the fixed curved surface 321f of the carrier fixing member 300f to the concave curved surface 211 of the separator 200. It can be stably fixed to the separator 200.

[Seventh Modification]
FIG. 18 is a schematic cross-sectional view of the in-pipe purification apparatus of the seventh modified example, and corresponds to FIG. 4 of the first embodiment. FIG. 19 is a schematic external perspective view of the carrier fixing member of FIG. 18 and corresponds to FIG. 5 of the first embodiment.

  18 includes a separator 200 (bending member 210 and partition member 250), a carrier fixing member 300g, and a carrier 400g. The carrier fixing member 300g shown in FIG. 19 is the same as the carrier fixing member 300c of the third modified example except that the shape of the holding projection 311g formed on the holding portion 310g is a columnar shape, but the holding projection 311g The first, second, fourth, and sixth modifications can be similarly applied in place of the holding protrusion 311a.

  A hole having a circular cross section corresponding to the shape of the holding protrusion 311g is formed in the carrier 400g. The cylindrical holding protrusion 311g is fitted into the hole of the carrier 400g, so that the carrier 400g is stably held by the carrier fixing member 300g.

[Eighth Modification]
FIG. 20 is a schematic cross-sectional view of the in-pipe purification apparatus of the eighth modification, and corresponds to FIG. 4 of the first embodiment. FIG. 21 is a schematic external perspective view of the carrier fixing member of FIG. 20 and corresponds to FIG. 5 of the first embodiment.

  The in-pipe purification apparatus 100h shown in FIG. 20 includes a separator 200 (the bending member 210 and the partition member 250), a carrier fixing member 300h, and a carrier 400h. The carrier fixing member 300h shown in FIG. 21 is the same as the carrier fixing member 300c of the third modification except that the shape of the holding projection 311h formed on the holding portion 310h is different. The first, second, fourth, and sixth modifications can be similarly applied in place of the holding protrusion 311a.

  The holding protrusion 311h is configured as a pair of plate-like protrusions. The carrier 400h is provided with a hole having a rectangular cross section corresponding to the shape of the holding protrusion 311h. By inserting the holding protrusion 311h along the hole wall of the carrier 400h, the carrier 400h is stably held by the carrier fixing member 300h.

[Other embodiments]
Hereinafter, the second and third embodiments in which the shape of the bending member 210 is different, the fourth to sixth embodiments in which the fixing manner of the carrier 400 is different, and the seventh embodiment in which the shape of the partition member 250 is different. The eighth embodiment and the ninth embodiment, which are different in the coupling mode of the bending member 210 and the partition member 250, will be described. In these embodiments, differences from the first embodiment will be mainly described, and description of the same points will be omitted.

[Second Embodiment]
FIG. 22 is a schematic cross-sectional view of the in-pipe purification apparatus of the second embodiment, and corresponds to FIG. 4 of the first embodiment. 22 includes a separator 200i (curved member 210i and partition member 250), a carrier fixing member 300, and a carrier 400. The bending member 210i shown in FIG. 22 is the same as the bending member 210 of the first embodiment, except that a support portion 218i protrudes from the concave curved surface 211i.

  The support portion 218i is a pair of protrusions having a symmetrical shape with respect to the target axis, and is arranged in parallel with the extending direction of the separator 200i. The pair of support portions 218i are formed at positions where the pair of carriers 400 are disposed with a predetermined separation distance i. At the position where the carrier fixing member 300 is fixed, the support portion 218 i supports the lower end surface 318 of the carrier fixing member 300 by hitting it. In a position where the carrier fixing member 300 is not fixed and the carrier 400 is exposed, the support portion 218 i may be supported by bumping one end of the carrier 400. Thereby, the carrier 400 can be stably disposed.

In addition, the bending member 210i in this embodiment may be applied instead of the bending member 210 in the first embodiment.
In the present embodiment, the carrier fixing member 300 of the first embodiment has been described as the carrier fixing member. However, the carrier fixing members 300a, 300b, 300c, 300d, 300e of the first to eighth modifications described above are used. 300f, 300g, 300h, etc. may be applied instead.

[Third Embodiment]
FIG. 23 is a schematic cross-sectional view of the in-pipe purification apparatus of the third embodiment, and corresponds to FIG. 4 of the first embodiment. 24 is a schematic external perspective view of the carrier fixing member of FIG. 23 and corresponds to FIG. 5 of the first embodiment.

  23 includes a separator 200j (curved member 210j and partition member 250), a carrier fixing member 300j, and a carrier 400. The bending member 210j shown in FIG. 23 is the same as the bending member 210 of the first embodiment, except that the support portions 218j and 218j ′ are projected from the concave curved surface 211j. The carrier fixing member 300j shown in FIG. 24 is the same as the carrier fixing member 300 of the first embodiment, except that the supported portions 308j and 308j 'are protruded.

  The support part 218j is a pair of protrusions having a symmetrical shape with respect to the target axis, and is arranged in parallel with the extending direction of the separator 200j. The pair of support portions 218j are formed at positions where the pair of carriers 400 are disposed with a predetermined separation distance i. Further, the support portion 218j is configured to be fitted to a supported portion 308j that protrudes from the lower end surface 318j of the carrier fixing member 300j. The support portion 218j supports the carrier fixing member 300j by fitting and locking the supported portion 308j.

  The support portion 218j 'is also a pair of protrusions having a symmetrical shape with respect to the target axis, and is arranged in parallel with the extending direction of the separator 200j. Each of the pair of support portions 218j ′ is formed at a position spaced from the support portion 218j by a distance corresponding to a predetermined width w of the carrier 400. Further, the support portion 218j 'is configured to be fitted with a supported portion 308j' protruding from the upper end surface 318j 'of the carrier fixing member 300j. The support portion 218j 'supports the carrier fixing member 300j in an auxiliary manner by fitting and locking the supported portion 308j'.

  Furthermore, the carrier 400 may be supported between the support portions 218j and 218j 'at a position where the carrier fixing member 300j is not fixed and the carrier 400 is exposed. Thereby, the carrier 400 can be stably disposed.

  In the present embodiment, the support portion 218j and the supported portion 308j, and the support portion 218j 'and the supported portion 308j' are structurally configured to be detachable. For this reason, no adhesive is required to fix the carrier fixing member 300j to the bending member 210j. However, in the present embodiment, it is not particularly excluded to use an adhesive supplementarily for fixing the carrier fixing member 300j to the bending member 210j.

  In this embodiment, the shape of the carrier fixing member 300j is based on the shape of the carrier fixing member 300 of the first embodiment. However, the carrier fixing members 300c, 300d, 300e of the third to eighth modifications described above are used. The shape may be based on 300f, 300g, 300h, or the like.

  The place where the bending member and the carrier fixing member are fitted is limited between the concave curved surface of the bending member 210j and the side surface of the carrier fixing member (that is, the lower end surface 318j and the upper end surface 318j ′) as described above. Absent. In addition, the place where the bending member and the carrier fixing member are fitted may be between the concave curved surface of the bending member and the fixing curved surface of the carrier fixing member. For example, when the curved member has a concave groove and a fitting groove that is recessed in the axial direction of the pipe line, the carrier fixing member is configured to have a fitting convex portion on the fixed curved surface. You may fix by fitting the said fitting groove and the said fitting convex part. Alternatively, when the curved member has a fitting curved line projecting in the axial direction of the pipe line on the concave curved surface, the carrier fixing member is configured to have a fitting concave portion on the fixed curved surface, You may fix by making a fitting convex line and the said fitting recessed part fit.

[Fourth Embodiment]
FIG. 25 is a schematic cross-sectional view of the in-pipe purification apparatus of the fourth embodiment, and corresponds to FIG. 4 of the first embodiment. 26 is a schematic external perspective view of the carrier fixing member of FIG. 25 and corresponds to FIG. 5 of the first embodiment.

  25 includes a separator 200k (curved member 210k and partition member 250), a carrier fixing member 300k, and a carrier 400. The bending member 210k shown in FIG. 25 is the same as the bending member 210 of the first embodiment, except that the fitting ridge 213k protrudes from the concave curved surface 211k. The carrier fixing member 300k shown in FIG. 26 is the same as the carrier fixing member 300 of the first embodiment except that the fitting concave portion 323k is engraved on the fixed curved surface 321k.

  A plurality of pairs of fitting ridges 213k are arranged in parallel with the extending direction of the bending member 210k. The fitting convex shape 213k is formed in a shape that can be fitted and locked with the fitting concave portion 323k of the carrier fixing member 300k. Therefore, the carrier fixing member 300k is fixed by fitting and locking the fitting recess 323k to the fitting protrusion 213k of the bending member 210k.

  In the present embodiment, the fitting protrusions 213k and the fitting recesses 323k are structurally configured to be detachable. Therefore, no adhesive is required between the concave curved surface 211k of the curved member 210k and the fixed curved surface 321k of the carrier fixing member 300k. However, in the present embodiment, it is not particularly excluded to use an adhesive supplementarily for fixing the carrier fixing member 300k to the bending member 210k.

  As a modification of the present embodiment, a fitting groove is engraved on the bending member 210k, a fitting protrusion is provided on the carrier fixing member 300k, and the fitting groove and the fitting protrusion are fitted. The carrier fixing member 300k may be fixed to the bending member 210k by being locked.

  In this embodiment, the shape of the carrier fixing member 300k is based on the shape of the carrier fixing member 300 of the first embodiment. However, the carrier fixing members 300a, 300b, 300c of the first to eighth modifications described above are used. The shape may be based on 300d, 300e, 300f, 300g, 300h, or the like.

[Fifth Embodiment]
FIG. 27 is a schematic cross-sectional view of the in-pipe purification apparatus of the fifth embodiment, and corresponds to FIG. 4 of the first embodiment.

  27 includes a separator 200l (curving member 210l and partition member 250), a carrier fixing member 300l, and a carrier 400l. The carrier fixing member 300l is a resin screw. The bending member 210l is the same as the bending member 210 of the first embodiment except that it has a screw hole. The screw holes of the bending member 210l are formed so that the screw threads of the carrier fixing member 300l can be screwed together. Furthermore, screw holes are also formed in the carrier 400l.

  With such a configuration, the carrier 400l is fixed to the bending member 210l by the carrier fixing member 300l. In this embodiment, since the carrier fixing member 300l is mechanically fixed to the bending member 210l, an adhesive is not necessarily required. However, for stable fixation, an adhesive is preferably interposed between the surface of the carrier 400l and the concave curved surface 211l of the bending member 210l.

[Sixth Embodiment]
FIG. 28 is a schematic cross-sectional view of the in-pipe purification apparatus of the sixth embodiment, and corresponds to FIG. 4 of the first embodiment. The in-pipe purification apparatus 100m shown in FIG. 28 includes a separator 200m (curved member 210i and partition member 250) and a carrier 400, and does not include a carrier fixing member. The carrier 400 is directly fixed to the concave curved surface 211i of the bending member 210i by an adhesive. The adhesive can be appropriately determined by those skilled in the art in consideration of the material of the bending member 210 i and the material of the carrier 400. For example, a rubber adhesive mainly composed of styrene-butadiene, a solvent-based adhesive, and the like can be given.

  In the present embodiment, since the support portion 218i is formed on the bending member 210i, the lower end surface of the carrier 400 can be stopped. Thereby, fixation by an adhesive can be assisted. However, it is not particularly excluded to apply the bending member 210 of the first embodiment instead as the bending member.

[Seventh Embodiment]
FIG. 29 is a schematic cross-sectional view of the in-pipe purification apparatus of the seventh embodiment, and corresponds to FIG. 4 of the first embodiment. 29 includes a separator 200n (curved member 210 and partition member 250n), a carrier fixing member 300, and a carrier 400.

  The partition member 250n has a curved plate shape having a single curved surface having a radius of curvature larger than the radius of the conduit 910. The partition member 250n is a perforated member in which the water permeable holes 254n are formed, similarly to the water permeable holes 254 of the first to sixth embodiments. The drop E from the horizontal position of the axis O of the horizontal position of the uppermost point of the separator 200n and the height N of the narrowest part of the purification unit 911 are also set in the same manner as in the above-described embodiment.

In the present embodiment, the carrier fixing member 300 of the first embodiment has been described as the carrier fixing member. However, the carrier fixing members 300a, 300b, and 300d of the first, second, fourth, fifth, and sixth modified examples described above. , 300e, 300f, etc. may be applied instead.
Further, the partition member 250n of the present embodiment may be applied instead of the partition member 250 in the first to sixth embodiments.

[Eighth Embodiment]
FIG. 30 is a schematic cross-sectional view of the in-pipe purification apparatus of the eighth embodiment, and corresponds to FIG. 4 of the first embodiment. An in-pipe purification apparatus 100p shown in FIG. 30 includes a separator 200p (curved member 210p and partition member 250p), a carrier fixing member 300, and a carrier 400.

  The bending member 210p is the same as the bending member 210 of the first embodiment except that the bending member 210p has a fitting portion 217p. The fitting portion 217p is formed in a male shape protruding from the convex curved surface 212p, and is fitted into a fitting portion 257p formed in a female die of a partition member 250p described later. By configuring the fitting portion 217p in this way, the bending member 210p is not easily deformed when the bending member 210p is stacked in the manufacturing process.

  Thus, in this embodiment, the fitting part 217p and the fitting part 257p are configured in a detachable shape in terms of structure. For this reason, an adhesive is not required for the connection between the bending member 210p and the partition member 250p. However, in the present embodiment, it is not particularly excluded to use an adhesive supplementarily for coupling the bending member 210p and the partition member 250p.

In the present embodiment, the carrier fixing member 300 of the first embodiment has been described as the carrier fixing member. However, the carrier fixing members 300a, 300b, 300c, 300d, 300e of the first to eighth modifications described above are described. 300f, 300g, 300h, etc. may be applied instead.
In this embodiment, the shape of the bending member 210p is based on the shape of the bending member 210 of the first embodiment. However, the bending members 210i and 210j of the second and third embodiments may be used as the base. .
Furthermore, in the present embodiment, the shape of the partition member 250p is based on the shape of the partition member 250 of the first embodiment, but may be based on the shape of the partition member 250n of the seventh embodiment.

[Ninth Embodiment]
FIG. 31 is a schematic cross-sectional view of the in-pipe purification apparatus of the ninth embodiment, and corresponds to FIG. 4 of the first embodiment. 31 includes a separator 200q (bending member 210q and partition member 250q), a carrier fixing member 300, and a carrier 400.

  The bending member 210q is the same as the bending member 210 of the first embodiment except that the bending member 210q has an adhesive surface 219q instead of the fitting portion. The partition member 250q is the same as the partition member 250 of the first embodiment except that the partition member 250q has an adhesive surface 259q instead of the fitting portion. The curved member 210q and the partition member 250q constitute the separator 200q by bonding the adhesive surface 219q and the adhesive surface 259q with an adhesive.

In the present embodiment, the carrier fixing member 300 of the first embodiment has been described as the carrier fixing member. However, the carrier fixing members 300a, 300b, 300c, 300d, 300e of the first to eighth modifications described above are described. 300f, 300g, 300h, etc. may be applied instead.
In this embodiment, the shape of the bending member 210q is based on the shape of the bending member 210 of the first embodiment. However, the bending member 210i, 210j of the second and third embodiments may be used as a base. .
Furthermore, in the present embodiment, the shape of the partition member 250q is based on the shape of the partition member 250 of the first embodiment, but may be based on the shape of the partition member 250n of the seventh embodiment.

[Correspondence Relationship Between Each Part in Embodiment and Modification and Each Component in Claim]
The in-pipe purification devices 100, 100a, to, 100q in the embodiments and the modifications correspond to “in-pipe purification devices” in the claims, and the bending members 210, 210i, to, 210q correspond to “curving members”. The concave curved surfaces 211, 211i, 211j, 211k, and 211l correspond to “concave curved surfaces”, and 212 and 212p correspond to “curved surfaces (along part of the inner wall surface of the pipe)”, and the partition members 250 and 250n. , 250p and 250q correspond to “partition members” and “perforated members”, the water-permeable holes 254 and 254n correspond to “holes”, and the carrier fixing members 300, 300a to 300h, 300j, 300k and 300l are “ The carrier 400, 400g, 400h, 400l corresponds to the “carrier”, the in-pipe purification system 900 corresponds to the “in-pipe purification system”, and the pipe 910 Corresponds to the conduit ", axis O corresponds to" conduit axis. "

  Preferred embodiments of the present invention are as described above, but the present invention is not limited to them, and various other embodiments are possible without departing from the spirit and scope of the present invention. Furthermore, the operations and effects described in this embodiment are merely examples, and do not limit the present invention.

100, 100a, ..., 100q In-pipe purification devices 210, 210i, ..., 210q Curved members 211, 211i, 211j, 211k, 211l Concave surfaces 212, 212p Convex surfaces 250, 250n, 250p, 250q Partition members 254, 254n Hole 300, 300a, ..., 300h, 300j, 300k, 300l Carrier fixing member 400, 400g, 400h, 400l Carrier 900 In-pipe purification system 910 Pipe line O (of the pipe line)

Claims (6)

An in-pipe purification device installed in a pipe,
A curved member having a curved surface along a part of the inner wall surface of the conduit;
A partition member that divides the inside of the pipe line by being spanned between both side edges of the bending member, and has a hole formed therein;
A carrier for supporting microorganisms, which is fixed to the concave curved surface of the bending member;
Only including,
The curved member has a curved plate shape having a curved surface along a part of the lower inner wall surface in the pipeline, and the partition member is a plate-shaped partitioning the pipeline space into an upper space and a lower space. An in-pipe purification device that is a member . The bending member has a first fitting portion on a side edge portion,
The in-pipe purification apparatus according to claim 1, wherein the partition member has a second fitting portion fitted to the first fitting portion at a side edge portion.   The conduit according to claim 1, further comprising a carrier fixing member that holds the carrier and is fixed to the concave curved surface, wherein the carrier is fixed to the concave curved surface via the carrier fixing member. Internal purification device.   When installed in the pipe, a pair of the carriers are arranged at positions facing each other with respect to a straight line connecting the lowest point of the pipe and the axis in a cross-sectional view perpendicular to the axis of the pipe. The in-pipe purification apparatus according to any one of claims 1 to 3. A pipeline,
The in-pipe purification apparatus according to any one of claims 1 to 4, wherein the in-pipe purification device is installed in the pipe so as to extend in an axial direction of the pipe.
In-pipe purification system. A carrier fixing step of preparing a curved plate-shaped bending member, and fixing a carrier for supporting microorganisms on the concave curved surface of the bending member;
A lid installation step of spanning a perforated member between the both side edges of the bending member;
Only including,
The curved member has a curved plate shape having a curved surface along a part of the lower inner wall surface in the pipeline, and the perforated member is a plate-shaped partitioning the pipeline space into an upper space and a lower space. The manufacturing method of the purification apparatus in a pipe line which is a member .

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