JP7455664B2 - How to install treated water treatment equipment and cartridge filter - Google Patents

Description

The present invention is a processing device using a cartridge filter, and in particular, the cartridge filter can be taken out from the housing and replaced with a new cartridge filter, and the replacement work is relatively easy. A treatment device for water to be treated that is equipped with a cartridge filter connection structure that connects multiple cartridge filters, and is used for water treatment of underground water, hot springs, etc., and installation of the cartridge filter in the treatment device. Regarding the method.

Traditionally, cartridge filters have been used to remove ions (e.g., boron, fluorine, arsenic, etc.) and particulates contained in the water being treated as water treatment technologies such as water purification, wastewater treatment, sludge treatment, and leachate treatment. Processing devices equipped with this are known.

Cartridge filters generally have a cylindrical filter part with a water collection pipe inserted through the center thereof. The cartridge filter having such a configuration is similarly housed in a cylindrical housing, and the water collection pipe is connected to a drain pipe extending from inside the housing to outside the housing.

In a water treatment device equipped with such a cartridge filter and housing, when water is supplied into the housing from the water supply pipe, the water flows through the filter from the outer circumferential surface of the cartridge filter. After flowing into the interior of the housing and adsorbing ions, etc. in the water to be treated, it flows out to the outside of the housing through a water collection pipe and a drain pipe.

Cartridge filters used for industrial purposes are large and absorb liquid after use, increasing their weight. Therefore, from the viewpoint of ease of replacement, one housing with a large axial length is It is known that a plurality of cartridge filters having a small length are arranged in series.

For example, Patent Document 1 describes a treatment device for water to be treated in which a plurality of cylindrical cartridge filters are arranged in series in the axial direction inside a cylindrical housing. The outer diameter of each cartridge filter is set smaller than the inner diameter of the housing, and the housing and each cartridge filter are arranged so that their central axes coincide. Adjacent cartridge filters are connected by a connecting pipe that connects the water collection pipes of the cartridge filters. A connecting ring is provided around the connecting tube to cover the connecting tube and connect the end plates of adjacent cartridge filters.

In this treatment device, water to be treated enters the filter section from the outer peripheral surface of each cartridge filter and is filtered. The treated water after filtration is discharged to the outside of the housing through a discharge pipe connected to the water collection pipe.

JP2012-206036A

In the treatment device described in Patent Document 1, since a gap is formed between the inner wall of the housing and the outer peripheral surface of the cartridge filter, when water to be treated is supplied into the housing, the buoyancy force acting on each cartridge filter is reduced. As a result, a force acts on each cartridge filter that causes the center axis of the cartridge filter to shift with respect to the center axis of the housing. If the center axes of adjacent cartridge filters are misaligned, a gap will be created at the connecting portion, which may cause liquid leakage.

In the processing device described in Patent Document 1, the end portions of adjacent cartridge filters are connected to each other by a connecting ring to strengthen the bonding force, thereby preventing a gap from forming in the connecting portion.

However, reinforcement with a connecting ring cannot suppress the misalignment of the central axes of the cartridge filters, so for example, if the water pressure of the water to be treated is high, there is a concern that liquid may leak from the connecting part. .

Therefore, there has been a need for a connection structure that can fix the central axis position of the cartridge filter without blocking the flow of water to be treated within the housing.

The present invention has been made in view of the above-mentioned problems, and its purpose is to fix the central axis position of a plurality of cartridge filters arranged in series in a housing without damming the flow of water to be treated in the housing. It is an object of the present invention to provide a treatment device for water to be treated having a cartridge filter connection structure, and a method for attaching a cartridge filter in the treatment device.

In order to solve the above problems, the present invention can have the following configuration.
(1) The cartridge filter connection structure of the present invention includes a plurality of cartridge filters each having a cylindrical shape with an outer diameter smaller than the inner diameter of the cylindrical housing and having a water collection pipe inserted through the center thereof, in a cylindrical housing. In a cartridge filter connection structure in which a plurality of adjacent cartridge filters arranged in series are connected, a connecting pipe connects water collection pipes of adjacent cartridge filters; A support member having a disc-like or arc-like shape that extends outward and has a diameter corresponding to the inner diameter of the cylindrical housing, and has at least one water passage hole formed on its surface. Features.

(2) The water treatment device of the present invention includes a cylindrical housing, a cylindrical housing whose outer diameter is smaller than the inner diameter, and a water collection pipe inserted through the center of the cylindrical housing. A treatment device for water to be treated, comprising: a plurality of cartridge filters arranged in series in a housing; and a cartridge filter connection structure that connects the adjacent cartridge filters arranged in series, the cartridge filter connection structure comprising: , a connecting pipe that connects water collection pipes of adjacent cartridge filters, and a disc-shaped or It is characterized by being comprised of a connecting member that includes a support member that is in the shape of an arc disc and has at least one water passage hole formed on its surface.

(3) In the processing device, the connecting member further includes a spacer material that protrudes from both sides of the support material, has a cylindrical shape surrounding the connecting tube, and has an outer diameter smaller than the outer diameter of the cartridge filter. It is characterized by being equipped.

(4) In the processing apparatus described above, both ends of the connecting pipe are formed in a sharp shape.

(5) The processing device described above includes support members disposed at both ends of the cartridge filter in the axial direction, the housing is disposed so that the axial direction is horizontal, and the support member supports the cartridge filter. It is disposed between the lower surface of the filter and the inner wall of the filter housing, has an L-shaped cross section that abuts the lower surface and end surface of the cartridge filter, and is formed in an arc shape along the outer periphery of the cartridge filter. It is characterized by

(6) The cartridge filter attachment method of the present invention is a cartridge filter attachment method in the above-mentioned water treatment apparatus, wherein the first cartridge filter is introduced into the cylindrical housing. a connecting member introducing step of introducing the connecting member into the cylindrical housing after introducing the first cartridge filter into the cylindrical housing; and a connecting member introducing step of introducing the connecting member into the cylindrical housing; After introducing the connecting member, inserting one end of the connecting pipe of the connecting member into the water collection pipe of the first cartridge filter, and introducing a second cartridge filter into the cylindrical housing. and inserting the other end of the connecting member into the water collection pipe of the second cartridge filter.

According to the cartridge filter connection structure and the treatment device for water to be treated of the present invention, the center axis positions of the plurality of cartridge filters arranged in series in the housing can be adjusted without damming the flow of water to be treated in the housing. Can be fixed. Moreover, according to the cartridge filter mounting method of the present invention, the cartridge filter can be easily mounted.

FIG. 1 is a cross-sectional view showing an embodiment of a treatment device for water to be treated that includes a cartridge filter connection structure of the present invention. FIG. 2 is a cross-sectional view of the connection structure portion of FIG. 1, showing a state in which the cartridge filter connection structure of the present invention is attached to the cartridge filter inserted into the housing. It is a perspective view of a support member. (a) is a front view of the connecting pipe, and (b) is a sectional view of the connecting pipe. (a) is a front view of the support material, and (b) is a cross-sectional view of the support material along the line XX. (a) is a front view of the spacer material, and (b) is a cross-sectional view of the spacer material. It is an explanatory view of a method of attaching a cartridge filter. It is an explanatory view of a method of attaching a cartridge filter.

The present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of a water treatment apparatus using a cartridge filter connection structure of the present invention, and FIG. 2 is a sectional view of the connection structure portion of FIG. 1. The treatment device 10 for water to be treated (hereinafter also simply referred to as the “treatment device 10”) is used for water treatment such as water purification, wastewater treatment, and sludge treatment. It is equipped with cartridge filters 20-1 and 20-2.

The processing device 10 connects a cylindrical housing 12, a plurality of cylindrical cartridge filters 20-1, 20-2 arranged in series inside the housing 12, and each cartridge filter 20-1, 20-2. It includes a cartridge filter connection structure 30 (hereinafter also simply referred to as "connection structure 30") and support members 44-1 and 44-2 that support each cartridge filter 20-1 and 20-2. The processing device 10 of this embodiment is installed so that the axial direction of the housing 12 is in the horizontal direction.

The housing 12 is a container that houses the cartridge filter 20 therein. In this embodiment, the housing 12 is formed into a cylindrical shape with both ends open. The openings at both ends of the housing 12 are covered with disc-shaped end plates 14A, 14B. The housing 12 and the end plates 14A, 14B can be made of a resin material, a metal material, a combination thereof, or the like. In this embodiment, the housing 12 and each end plate 14A, 14B are formed as separate parts, and are connected and fixed using fixing members such as bolts, but they may be formed in one piece. good. Each end plate 14A, 14B is provided with a water supply pipe 16-1, 16-2 and a drain pipe 18-1, 18-2, which communicate the inside and outside of the housing 12, respectively.

The water supply pipes 16-1 and 16-2 are pipes for supplying water to be treated into the housing 12, and are arranged at positions deviated outward in the radial direction from the center portions of the end plates 14A and 14B. The water supply pipes 16-1 and 16-2 are arranged so as to be located on opposite sides of the central axis of the housing 12 (in the illustrated example, on the upper side and the lower side with respect to the central axis of the housing 12). The drain pipes 18-1 and 18-2 are pipes for discharging the treated water that has passed through the cartridge filter 20 to the outside of the housing 12, and are arranged at the center of the end plates 14A and 14B. One end of each of the drain pipes 18-1 and 18-2 protrudes into the housing 12, and the distal end thereof is formed into a sharp shape having a cut end inclined with respect to a plane perpendicular to the axial direction.

End spacer members 19-1 and 19-2 that protrude into the housing 12 from the inner surface of each end plate 14A and 14B (the surface facing the inside of the housing 12) are provided. Each spacer member 19-1, 19-2 is fixed to each end plate 14A, 14B by a fixing member such as a bolt (not shown). The end spacer materials 19-1, 19-2 are formed in a cylindrical shape surrounding the drain pipes 18-1, 18-2, and have an outer diameter smaller than the outer diameter of the cartridge filter 20, and are arranged in a pair described below. The outer diameters of the spacer members 40-1 and 40-2 are approximately equal to each other. The end spacers 19-1, 19-2, together with the spacer materials 40-1, 40-2, press and hold both ends of each cartridge filter 20 inward in the axial direction.

The cartridge filter 20 has a cylindrical shape with an outer diameter smaller than the inner diameter of the housing 12, and is cylindrical in this embodiment. The cartridge filter 20 includes a filter section 24 and a water collection pipe 22 inserted through the center of the filter section 24 . The water collection pipe 22 has water permeability, and may be, for example, a perforated pipe in which the wall of the pipe is formed in a lattice shape, or a perforated pipe in which a plurality of holes are formed in the wall of the pipe. can.

The filter section 24 has a filter function capable of removing ions such as boron, fluorine, arsenic, etc. contained in the water to be treated. In this embodiment, the filter section 24 is formed by winding glucamine-fixed cloth for adsorbing boron around the water collection pipe 22. As the glucamine-immobilized fabric, it is preferable to use a nonwoven fabric or woven fabric containing glucamine, particularly N-methyl-D-glucamine. The glucamine-immobilized fabric can be formed, for example, by graft polymerizing glycidyl methacrylate onto the fabric by irradiating it with radiation (electron beam) and then reacting it with N-methyl-D-glucamine. As the nonwoven fabric or woven fabric serving as the base material of the glucamine-immobilized fabric, it is preferable to use a nonwoven fabric or woven fabric formed from an organic polymer.

Removable end caps 26 are provided at both ends of the cartridge filter 20. The end cap 26 is made of a water-impermeable material, and by arranging it, it is possible to prevent the water to be treated that has flowed into the cartridge filter 20 from leaking outside before it flows into the water collection pipe 22. .

Each cartridge filter 20-1, 20-2 is installed in the housing 12, and both ends thereof are supported from below by a pair of support members 44-1, 44-2.

As shown in FIG. 1, the support member 44 is disposed between the lower outer peripheral surface 25, which is the lower surface of the cartridge filter 20, and the inner wall 12a of the housing 12 in the installed state. The support member 44 can be made of, for example, a resin material such as PVC, and has an L-shaped cross section that comes into contact with the lower surface and end surface of the cartridge filter 20. In this embodiment, the support member 44 is in contact with the end cap 26 that constitutes the end of the cartridge filter 20 . As shown in FIG. 3, the support member 44 is formed in an arc shape along the outer periphery of the cartridge filter 20. As shown in FIG. The arc angle of the support member 44 is preferably 120° or less, more preferably 90° or less. In this embodiment, the arc angle of the support member 44 is set to approximately 60°.

As shown in FIG. 3, the support member 44 of this embodiment includes a plate-shaped lower support piece 47 that curves along the outer circumferential surface 25 of the cartridge filter 20, and one arc-shaped side of the lower support piece 47. It has a contact piece 48 that projects vertically. The lower support piece 47 is a part that comes into contact with the lower surface (that is, the outer peripheral surface) of the cartridge filter 20 in the installed state, and the contact piece 48 is a part that comes into contact with the end face of the cartridge filter 20 in the installed state. The thickness of the lower support piece 47 is set so that the central axis of the cartridge filter 20 coincides with the central axis of the housing 12 when it is installed below the cartridge filter 20 within the housing 12 . Preferably, at least one groove 46 extending in the axial direction is formed on the outer peripheral surface of the lower support piece 47. In this embodiment, two grooves 46-1 and 46-2 are formed in one support member 44, but the number of grooves 46 may be three or more.

As shown in FIG. 1, the cartridge filter 20 uses a pair of support members 44-1, 44-2 and a connecting structure 30 so that the central axis of the water collection pipe 22 is coaxial with the central axis of the housing 12. A plurality of them are arranged in the housing 12. In the illustrated example, two cartridge filters 20-1 and 20-2 are arranged, but the number is not limited to two and may be three or more. As described above, the outer diameter of the cartridge filter 20 is smaller than the inner diameter of the housing 12, and in the installed state, there is a gap in the circumferential direction between the inner wall 12a of the housing 12 and the outer circumferential surface 25 of the cartridge filter 20. A gap S is formed over the entire area.

Next, the connection structure 30 that connects each cartridge filter 20-1, 20-2 will be explained using FIGS. 1, 2, and 4 to 6. The connecting member 30A constituting the connecting structure 30 includes a connecting pipe 32, a support member 34, and spacer members 40-1 and 40-2. The connecting pipe 32, the support material 34, and the spacer materials 40-1 and 40-2 can be made of a resin material such as PVC, a metal material, or a combination thereof.

The connecting pipe 32 is a pipe that connects the water collecting pipes 22 of the adjacent cartridge filters 20-1 and 20-2. As shown in FIG. 4, the connecting pipe 32 can be a water-impermeable pipe in which liquid does not flow into or out of the pipe wall. The connecting pipe 32 has an outer diameter that can be inserted into the water collecting pipe 22 of the cartridge filter 20 and is approximately equal to the inner diameter of the water collecting pipe 22 .

An annular groove 31 is formed on the outer peripheral surface of both ends of the connecting pipe 32, respectively. An annular sealing material 33 is inserted into each annular groove 31 to maintain liquid tightness when connected to the water collection pipe 22 . In this embodiment, the sealing material 33 is an O-ring made of a rubber material.

As shown in FIG. 4(b), both ends of the connecting pipe 32 are formed into a sharp shape with a cut end inclined with respect to a plane perpendicular to the axial direction. In this way, by providing the sharp parts 32a and 32b at both ends of the connecting pipe 32, when the connecting pipe 32 is inserted into the water collection pipe 22 and connected, the insertion operation can be facilitated. Further, by making both ends of the connecting pipe 32 sharp, the area where the water collecting pipe 22 is blocked by the connecting pipe 32 can be reduced, so that the water collecting effect can be enhanced. Further, since the connecting pipe 32 is not fixed to spacer members 40-1 and 40-2, which will be described later, and is rotatable around the axis, the connecting pipe 32 By rotating, the load on the cartridge filter 20 can be reduced.

As shown in FIG. 1, the support member 34 is attached to the axial center of the connecting pipe 32, and is formed in the shape of a disk or a circular arc of 180° or more that extends outward in the radial direction of the connecting pipe 32. As shown in FIG. 5, the support member 34 of this embodiment is formed into an arc disc shape with an arc angle of approximately 240°, and has an arc-shaped missing portion 38 of approximately 120°. The center portion of the support member 34 is formed into a disk shape, and an insertion hole 35 through which the connecting tube 32 is inserted is formed in the center. A plurality of holes 39 having a smaller diameter than the insertion hole 35 are formed in the center of the support member 34 so as to surround the insertion hole 35 .

The support material 34 has at least one water passage hole 36 formed on its surface. In this embodiment, as shown in FIG. 5(a), six circular water holes 36 are formed in the support material 34 with ribs 37 interposed therebetween. Note that the shape of the water passage hole 36 is not limited to a circle, but may be a square, an ellipse, an arc, or the like. Further, the number of water holes 36 is not limited to six, but may be one or more. When a plurality of water holes 36 are formed, the water holes 36 are preferably formed at equal intervals in the circumferential direction of the support material 34 via the ribs 37.

The spacer materials 40-1 and 40-2 secure a space between the adjacent cartridge filters 20-1 and 20-2 when installed in the housing 12, and are provided from both sides of the support material 34. A pair are provided so as to protrude. Each spacer material 40-1, 40-2 is formed into a cylindrical shape surrounding the connecting pipe 32, and in this embodiment, as shown in FIG. It has an insertion hole 42. The outer diameter of the spacer material 40 is smaller than the outer diameter of the cartridge filter 20. As shown in FIGS. 1 and 2, in this embodiment, when the spacer material 40 is attached to the support material 34, the water passage hole 36 of the support material 34 is located on the outside of the spacer material 40 in the radial direction. , the position of the water passage hole 36 of the support material 34 and the outer diameter of the spacer material 40 are set. The thickness of the spacer material 40, that is, the length in the axial direction is formed to be larger than the plate thickness of the support material 34.

As shown in FIGS. 1, 2, and 5 to 6, the support material 34 and each spacer material 40-1, 40-2 have a hole 39 in the support material 34 and each spacer material 40-1, 40-2. A fixing member 42 such as a bolt is inserted into the hole 44 of No. 2, and the two are connected to each other. The connecting pipe 32, the support material 34, and each spacer material 40-1, 40-2 can be bonded to each other with an adhesive (not shown) applied to the bonding surfaces.

The connecting member 30A, in which the connecting pipe 32, the support material 34, and the pair of spacer materials 40-1 and 40-2 are combined, has one end of the connecting pipe 32 inserted into the water collecting pipe 22 of one of the cartridge filters 20-1. By inserting the other end of the connecting pipe 32 into the water collecting pipe 22 of the other cartridge filter 20-2, the two cartridge filters 20-1 and 20-2 are connected in series. In this way, by arranging a plurality of cartridge filters 20 in series, the axial length of one cartridge filter 20 can be reduced and replacement work can be performed efficiently. Further, it is also possible to use a combination of cartridge filters 20 that can adsorb different objects.

The sizes of the housing 12, cartridge filter 20, support member 44, and connecting member 30A that constitute the processing device 10, as well as these constituent members, are not particularly limited, but in order for the operator to carry out the replacement work efficiently, Preferably, the size is such that it can be carried around. For example, the axial length of the housing 12 can be approximately 400 to 800 mm, and the diameter can be approximately 100 to 300 mm. The size of the cartridge filter 20 is appropriately determined depending on the size of the housing 12. The weight of the cartridge filter 20 is preferably such that a person can carry it in a moist state after use, for example, 20 kg or less in a water-free state before use, and 20 kg in a moist state. The weight can be set to exceed .

Next, an example of a method for attaching a cartridge filter using the connection structure 30 in the processing apparatus 10 will be described with reference to FIGS. 7 and 8.

First, the first cartridge filter 20-1 is introduced into the housing 12 from one open end of the housing 12. The other end of the housing 12 is covered with an end plate 14B. The first cartridge filter 20-1 is introduced into the housing 12 with both ends in the axial direction supported from below by a pair of support members 44-1 and 44-2. The central axis of the first cartridge filter 20-1 is supported by the supporting members 44-1 and 44-2, so that the central axis of the first cartridge filter 20-1 substantially coincides with the central axis of the housing 12.

Thereafter, as shown in FIG. 7, the connecting member 30A is introduced into the housing 12, and one end of the connecting pipe 32 of the connecting member 30A is inserted into the water collecting pipe 22 of the first cartridge filter 20-1. Furthermore, the connecting member 30A is pushed into the housing 12, and one of the spacer members 40-2 is brought into contact with the end cap 26 of the first cartridge filter 20.

After introducing the connecting member 30A, as shown in FIG. 8, the second cartridge filter 20-2 is introduced into the housing 12, and the other end of the connecting member 30A is inserted into the second cartridge filter 20-2. Insert into the water pipe 22. The second cartridge filter 20-2 is introduced with both ends supported from below by a pair of support members 44.

By pushing the second cartridge filter 20-2 into the housing 12 with the end cap 26 of the second cartridge filter 20-2 in contact with one of the spacer members 40-1 of the connecting member 30A, the second cartridge filter 20-2 is pushed into the housing 12. The first cartridge filter 20-1, the connecting member 30A, and the second cartridge filter 20-2 are pushed together to the end plate 14B side of the housing 12. By this pushing operation, the drain pipe 18-1 attached to the end plate 14B is inserted into the water collection pipe 22 of the first cartridge filter 20-1, and the first The end cap 26 of the cartridge filter 20-1 abuts on the end cap 26 of the cartridge filter 20-1. Thereafter, by attaching the end plate 14A to the open end of the housing 12, the two cartridge filters 20-1 and 20-2 are attached within the housing 12.

In this manner, the cartridge filters 20-1 and 20-2 in the processing apparatus 10 of this embodiment are arranged so that both ends of the connecting pipe 32 of the connecting member 30 are inserted into the water collection pipe 22 of each cartridge filter 20-1 and 20-2. It can be installed in the housing 12 by a simple insertion procedure.

Next, a method for treating water to be treated in the treatment apparatus 10 described above will be explained. First, water to be treated is supplied into the housing 12 from one water supply pipe 16-1 in the direction of arrow A in FIG. At this time, water to be treated is not being supplied from the other water supply pipe 16-2 in the direction of arrow B. The supplied water to be treated flows into the water collecting pipe 22 through the cartridge filters 20-1 and 20-2. Boron contained in the water to be treated is captured by bonding with glucamine groups of the filter section 24 when passing through the cartridge filters 20-1 and 20-2. The treated water that has flowed into the water collection pipe 22 flows in the direction of arrow A' toward one of the drain pipes 18 and flows out of the housing 12.

After the above treatment has been carried out for a predetermined period of time, water to be treated is then supplied into the housing 12 from the other water supply pipe 16-2 in the direction of arrow B in FIG. At this time, the water to be treated is not being supplied from the other water supply pipe 16-2. The supplied water to be treated flows into the water collecting pipe 22 through the cartridge filters 20-1 and 20-2. Boron contained in the water to be treated is captured by the filter section 24 when it passes through the cartridge filters 20-1 and 20-2. The treated water that has flowed into the water collection pipe 22 flows in the direction of arrow B' toward the other drain pipe 18-2 and flows out of the housing 12.

Note that instead of the above embodiment, the drain pipes 18-1 and 18-2 in the center of the housing 12 are used as water supply pipes for supplying the water to be treated into the housing 12, and the water supply pipes on the outer peripheral side of the housing 12 are used as water supply pipes for supplying the water to be treated into the housing 12. The pipes 16-1 and 16-2 can be used as discharge pipes for discharging treated water to the outside of the housing 12.

In the above-described water treatment apparatus 10, the cartridge filters 20-1 and 20-2 are subjected to downward gravitational force due to their own weight, and are also affected by the buoyancy of the water when treating the water. In the processing device 10 of the present embodiment, a connection structure 30 having a support material 34 is used between the two cartridge filters 20-1 and 20-2 arranged in series in the housing 12, thereby reducing gravity and buoyancy. Even under the influence, the central axis of the connecting pipe 32 can be stably held at the central axis position of the housing 12. Specifically, since the diameter of the support material 34 is formed to be approximately equal to the inner diameter of the housing 12, the center of the circle of the support material 12 coincides with the central axis position of the housing 12. As a result, the central axis of the connecting tube 32 is stably held so as to coincide with the central axis position of the housing 12, and the central axis of each cartridge filter 20-1, 20-2 connected to this connecting tube 32 is also aligned with the central axis of the housing 12. It is held in a stable state at a position that coincides with the central axis of 12. As a result, even if each cartridge filter 20-1, 20-2 is affected by its own weight or the buoyancy of the water to be treated flowing inside the housing 12, its central axis can be aligned with the central axis of the housing 12. .

In addition, each cartridge filter 20-1, 20-2 is pressed and held inward in the axial direction from both ends by the end spacer materials 19-1, 19-2 and the spacer materials 40-1, 40-2 of the connecting member 30A. Therefore, the stability of each cartridge filter 20-1, 20-2 within the housing 12 is further improved.

Further, since the support material 34 constituting the connection structure 30 is formed with a water passage hole 36, the water to be treated can flow inside the housing 12 through the water passage hole 36. The flow of water is not dammed. In this embodiment, the support material 34 is not in the shape of a disk but in the shape of an arcuate disk having the missing portion 38, so that the water to be treated can flow more easily.

In addition, in the connection structure 30 of this embodiment, spacers 40-1 and 40-2 provided on both sides of the support member 34 provide a space between each cartridge filter 20-1 and 20-2. The water to be treated can easily flow from one cartridge filter 20 side to the other cartridge filter 20 side. Further, since grooves 46 are provided in the support member 44 that supports each cartridge filter 20, the water to be treated can also flow through the grooves 46.

Further, when replacing the used cartridge filter 20, the cartridge filter 20 is supported by the support member 44, so that the cartridge filter 20 can be prevented from being deformed or damaged. Specifically, when water is drained from the housing 12 in order to replace the cartridge filter 20, the wet cartridge filter 20 is heavy, so if there is no support member 44, the cartridge filter 20 is connected to the cartridge filter 20. A load is also applied to the drain pipe 18 and the communication pipe 32, which deform and damage the cartridge filter 20, and there is a possibility that the cartridge filter 20 cannot be recycled. In this embodiment, by supporting the heavy cartridge filter 20 from below using the support member 44, it is possible to prevent the cartridge filter 20 from being deformed or damaged.

Note that the present invention is not limited to the embodiments described above, and various changes can be made without departing from the spirit of the invention.

For example, in the embodiment described above, a cartridge filter for ion adsorption is used, but the cartridge filter connection structure of the present invention can be applied to the connection of cartridge filters that have a filtration function to collect particulates in water to be treated. is also possible.

10 Treatment device for water to be treated 12 Housing 20-1, 20-2 Cartridge filter 30 Connection structure (Cartridge filter connection structure)
30A Connecting member 32 Connecting pipe 34 Support material 40-1, 40-2 Spacer material 44 Support member

Claims (4)

a cylindrical housing arranged so that the axial direction is horizontal;
a cartridge filter having a cylindrical shape with an outer diameter smaller than an inner diameter of the cylindrical housing, a water collection pipe being inserted through the center thereof, and a plurality of cartridge filters arranged in series within the cylindrical housing;
a cartridge filter connection structure that connects the adjacent cartridge filters arranged in series;
a support member disposed at both ends of the cartridge filter in the axial direction;
Equipped with
The cartridge filter connection structure includes:
A connecting pipe that connects the water collection pipes of adjacent cartridge filters,
At least one water passage hole is attached to the connecting pipe, and the disc-shaped or arc-shaped disc-shaped member extends outward in the radial direction of the connecting pipe and has a diameter corresponding to the inner diameter of the cylindrical housing, and has at least one water passage hole on the surface. A support material formed with
It consists of a connecting member with
The support member is disposed between the lower surface of the cartridge filter and the inner wall of the cylindrical housing, has an L-shaped cross section that abuts the lower surface and the end surface of the cartridge filter, and has an L-shaped cross section that abuts the lower surface and the end surface of the cartridge filter. A treatment device for water to be treated, characterized in that it is formed in an arc shape along. The connecting member further includes:
The object to be treated according to claim 1 , further comprising a cylindrical spacer material that protrudes from both sides of the support material, surrounds the connecting pipe, and has an outer diameter smaller than the outer diameter of the cartridge filter. Water treatment equipment. 3. The water treatment apparatus according to claim 1 , wherein the connecting pipe has both ends sharply formed. a cylindrical housing arranged so that the axial direction is horizontal;
a cartridge filter having a cylindrical shape with an outer diameter smaller than an inner diameter of the cylindrical housing, a water collection pipe being inserted through the center thereof, and a plurality of cartridge filters arranged in series within the cylindrical housing;
a cartridge filter connection structure that connects the adjacent cartridge filters arranged in series;
The cartridge filter connection structure includes:
A connecting pipe that connects the water collection pipes of adjacent cartridge filters,
At least one water passage hole is attached to the connecting pipe, and the disc-shaped or arc-shaped disc-shaped member extends outward in the radial direction of the connecting pipe and has a diameter corresponding to the inner diameter of the cylindrical housing, and has at least one water passage hole on the surface. A method for attaching a cartridge filter in a water treatment device to be treated, the cartridge filter comprising a support member formed with a connecting member comprising:
introducing a first cartridge filter into the cylindrical housing;
a connecting member introducing step of introducing the connecting member into the cylindrical housing after introducing the first cartridge filter into the cylindrical housing;
After introducing the connecting member into the cylindrical housing, inserting one end of the connecting pipe of the connecting member into the water collection pipe of the first cartridge filter;
a second cartridge filter introducing step of introducing a second cartridge filter into the cylindrical housing;
inserting the other end of the connecting member into the water collection pipe of the second cartridge filter;
including;
When the first cartridge filter and the second cartridge filter are introduced into the cylindrical housing, the lower surface of the cartridge filter is placed such that the central axis of the water collection pipe is coaxial with the central axis of the housing. A method for attaching a cartridge filter, characterized in that a support member is disposed between a lower outer circumferential surface and an inner wall of the cylindrical housing.

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