Lid member, fluid tank, and fluid treatment apparatus

Abstract

To improve workability when inserting an insertion member into a lid member.SOLUTION: A lid member comprises: a lid plate that is attached to a fluid tank body for containing fluid, covers an opening of the fluid tank body, and has a plurality of insertion holes; and a detachable member that is detachably attached to the lid plate and covers the insertion holes.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a lid member, a fluid tank, and a fluid treatment device. [Background technology]

[0002] Patent Document 1 describes a movable cover for an outdoor tank that can open and close the opening of an outdoor tank. In the structure described in Patent Document 1, the opening is partitioned by a first beam installed between one of the opposing edges of the opening of the water tank, and the first beam and a second beam arranged on the other opposing edge of the opening are arranged parallel to each other. Then, a plurality of shelves are formed on the opposing surfaces of the first beam and the second beam, and a plurality of cover materials installed between the first and second beams to close the partitioned opening are arranged on each shelf so as to be movable to be opened and closed via rollers that roll on the shelves. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-253989 A Summary of the Invention [Problem to be solved by the invention]

[0004] A lid member that covers an upper opening of a fluid tank in a fluid processing device may have various pipes, cables, and the like (hereinafter referred to as "insertion members") inserted therethrough. For example, there may be cases where the insertion position of these insertion members relative to the lid member needs to be changed, or where new insertion members need to be inserted, and therefore it is desirable to improve operability.

[0005] An object of the present disclosure is to improve the workability when inserting an insertion member into a cover member. [Means for solving the problem]

[0006] The technology disclosed herein comprises a cover plate that is attached to a fluid tank body that contains a fluid, covers the opening of the fluid tank body, and has a plurality of insertion holes, and a detachable member that is detachably attached to the cover plate and covers the insertion holes. Effect of the Invention

[0007] The technique disclosed herein can improve the workability when inserting the insertion member into the cover member. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing the overall configuration of a water circulation system equipped with a fluid treatment device according to the disclosed technique. [Diagram 2] FIG. 2 is a perspective view showing the fluid processing device of the first embodiment. [Diagram 3] FIG. 3 is an exploded perspective view partially showing the internal configuration of the fluid processing apparatus of the first embodiment. [Figure 4] FIG. 4 is a perspective view partially showing the internal configuration of the fluid processing apparatus of the first embodiment. [Diagram 5] FIG. 5 is a front view showing a detachable member of the fluid processing device of the first embodiment. [Figure 6] 6 is an exploded perspective view showing a detachable member of the fluid processing device of the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the first embodiment will be described with reference to the drawings.

[0010] 1 shows the overall configuration of a water circulation system 12 according to the technology of the present disclosure. This water circulation system 12 is a system that circulates and purifies wastewater used in the home, for example, so that the wastewater can be reused in the home. Examples of wastewater include water used in water usage points 14 in the home, such as a bathroom, a flushing toilet seat, a toilet, etc.

[0011] The water circulation system 12 has a wastewater tank 100 , a biological treatment tank 300 , and a treated water tank 400 .

[0012] The wastewater passes through a wastewater tank 100, a biological treatment tank 300, and a treatment tank 400 in this order, and is then circulated to a water usage point 14 (such as a washroom, a bath, or a toilet seat with a flushing function).

[0013] The water usage points 14 and the drainage tank 100 are connected by drainage piping 102. Wastewater generated at the water usage points 14 is sent to the drainage tank 100 through the drainage piping 102.

[0014] In the drainage tank 100, predetermined treatment such as stirring is performed on the drainage water. The gas in the drainage tank 100 may be discharged to the outside of the drainage tank 100, for example, by driving a fan.

[0015] The drainage tank 100 and the biological treatment tank 300 are connected by a drainage pipe 302. The drainage in the drainage tank 100 is sent to the biological treatment tank 300 through the drainage pipe 302 by driving a drainage pump 110.

[0016] For example, a membrane filtration device is provided inside the biological treatment tank 300. The membrane filtration device can filter the wastewater. The gas inside the biological treatment tank 300 may be discharged to the outside of the biological treatment tank 300 by, for example, driving a fan.

[0017] The biological treatment tank 300 and the treated water tank 400 are connected by a treated water pipe 402. A treated water pump 406 is provided on the treated water pipe 402. When the treated water pump 406 is driven, wastewater from the biological treatment tank 300 is sent to the treated water tank 400.

[0018] A predetermined treatment is also performed on the wastewater in the treatment water tank 400. The gas in the treatment water tank 400 may be discharged to the outside of the treatment water tank 400, for example, by driving a fan.

[0019] The treated water tank 400 and each of the water usage points 14 are connected by a supply pipe 716. A supply pump 724 is provided on the supply pipe 716. The treated water in the treated water tank 400 is sent to each of the water usage points 14 through the supply pipe 716 by driving the supply pump 724. Note that in practice, the supply pipe 716 branches out toward each of the water usage points 14.

[0020] Fig. 2 shows a liquid treatment device 16 equipped with a cover member according to the technology of the present disclosure. The example shown in Fig. 2 is shown as an example of the liquid treatment device 16 incorporated in the water circulation system 12 shown in Fig. 1. The liquid treatment device 16 is an example of the fluid treatment device of the technology of the present disclosure. The fluid to be treated by the fluid treatment device may be a gas as well as a liquid.

[0021] The liquid treatment device 16 has a rectangular parallelepiped housing 18. In the following, the width direction, depth direction, and height direction of the housing 18 are indicated by arrows W, D, and H, respectively.

[0022] In the housing 18, various devices for operating the liquid treatment device 16, a wastewater tank 100, a biological treatment tank 300, a treated water tank 400, etc. are arranged. The wastewater tank 100, the biological treatment tank 300, and the treated water tank 400 are all examples of fluid tanks according to the disclosed technology, and hereinafter may be collectively referred to as fluid tanks.

[0023] 3, the fluid tank has, for example, a fluid tank body 20. An upper portion of the fluid tank body 20 is an opening 28 when viewed from above (as viewed in the direction of arrow A1). A lid member 30 that covers the opening 28 is attached to the fluid tank body 20. The liquid contained inside the fluid tank body 20 is the liquid to be treated according to the technology of the present disclosure.

[0024] As shown in Fig. 4, the cover member 30 has a cover plate 32 and a detachable member 34. Each cover plate 32 is a plate-shaped member capable of covering the opening 28 of the fluid tank body 20. The cover plate 32 is fixed to a flange 36 provided on the upper part of the fluid tank body 20 with bolts (not shown). A sealant is disposed between the cover plate 32 and the flange 36 as necessary to prevent the liquid in the fluid tank body 20 from accidentally leaking.

[0025] Each cover plate 32 is formed with one inspection hatch 40 and multiple insertion holes 44. The inspection hatch 40 and the insertion holes 44 each penetrate the cover plate 32 in the thickness direction. In the illustrated example, the multiple insertion holes 44 have the same shape, that is, a circle with a constant inner diameter D1.

[0026] The inspection hatch 40 is an opening through which an operator can insert a part of the body (for example, an arm) or a work tool into the fluid tank from above. An inspection lid 42 is detachably attached to the inspection hatch 40 with bolts. The inspection hatch 40 can be accessed by removing the inspection lid 42 from the cover plate 32 with the cover plate 32 attached to the flange 36. In the example shown in Fig. 3, the inspection hatch 40 is larger than the insertion hole 44 in a plan view.

[0027] As described below, each of the insertion holes 44 is an opening into which an insertion member 46 is attached or inserted. The insertion members 46 include, for example, various hoses 46A, tubes 46B, cables 46C, and the like (see FIG. 7) that pass through the cover plate 32 and are disposed in the biological treatment tank 300. These hoses 46A, tubes 46B, and cables 46C each have a different shape.

[0028] The detachable members 34 are attached to the cover plate 32. In this embodiment, the detachable members 34 correspond one-to-one to the insertion holes 44 and cover the insertion holes 44.

[0029] 5 and 6, the detachable member 34 has an attachment plate 48 and a holder 50. The attachment plate 48 has a rectangular plate shape in a plan view, and in the illustrated example, has a square shape in a plan view.

[0030] The length L1 (see FIG. 6) of one side of the mounting plate 48 is longer than the inner diameter D1 of the insertion hole 44. The four corners of the mounting plate 48 protrude outward beyond the insertion hole 44 when viewed in the normal direction of the mounting plate 48, and the mounting plate 48 has four protruding portions 48T at the corners. At the protruding portions 48T, the mounting plate 48 is detachably attached to the cover plate 32 by bolts 52. This realizes a structure in which the detachable member 34 is detachably attached to the cover plate 32.

[0031] A through hole 54 is formed in the mounting plate 48, penetrating in the plate thickness direction. The through hole 54 has an inner diameter D2 that is approximately the same as or smaller than the insertion hole 44. When the mounting plate 48 is attached to the cover plate 32, the through hole 54 is concentric with the insertion hole 44 of the cover plate 32 and is continuous with the insertion hole 44 in the plate thickness direction of the mounting plate 48.

[0032] A holder 50 is attached to the mounting plate 48. The holder 50 has various shapes and structures corresponding to the type of the insertion member 46. For example, as shown in FIG. 4, there is a holder 50A having a shape corresponding to the hose 46A, a holder 50B having a shape corresponding to the tube 46B, and a holding part 50C having a shape corresponding to the cable 46C. The holder 50 shown in FIG. 4 is an example of various holding parts. The holder 50 is not limited to the example shown in FIG. 4. For example, the holder 50 may have a structure including a hole through which the tube 46B is inserted, and an annular seal ring that comes into close contact with the outer periphery of the tube 46B when the tube 46B is inserted into the hole.

[0033] Each of the mounting plates 48 has the same shape and is attached to the cover plate 32 by the same mounting structure. In the example shown in Fig. 5, the mounting plates 48 are attached to the cover plate 32 by using bolts 52. Instead of using the bolts 52, the mounting plates 48 may be attached to the cover plate 32 by, for example, clips or the like. In any case, the detachable members 34 having different holders 50 can be attached to the cover plate 32 at positions corresponding to any of the insertion holes 44. In addition, the positions of two detachable members 34 having different holders 50 can be interchanged.

[0034] A seal member 56 is disposed between the cover plate 32 and the detachable member 34 (the mounting plate 48). The seal member 56 is a sheet-like member formed of an elastic material such as rubber. The seal member 56 has a rectangular shape in a plan view similar to that of the mounting plate 48, and has a protruding portion 56T. When the mounting plate 48 is attached to the cover plate 32 by the bolts 52, the seal member 56 is sandwiched between the cover plate 32 and the protruding portion 48T of the mounting plate 48 at the protruding portion 56T. The seal member 56 comes into close contact with the cover plate 32 and the mounting plate 48, and seals the periphery of the insertion hole 44.

[0035] In some of the multiple insertion holes 44 of the cover plate 32, the insertion member 46 may not be inserted. Such insertion holes 44 are blocked by a blocking plate 58 as shown in FIG. 7. The blocking plate 58 is square-shaped when viewed in the normal direction, like the mounting plate 48, but does not have a through hole 54. The insertion holes 44 can be blocked by attaching the blocking plate 58 to the cover plate 32. In this case, the positions of the blocking plate 58 and the mounting plate 48 (detachable member 34) can be interchanged. A seal member 56 is also sandwiched between the cover plate 32 and the blocking plate 58.

[0036] Next, the operation of this embodiment will be described.

[0037] As shown in Fig. 4, in the fluid tank of this embodiment, the upper opening 28 (see Fig. 3) is closed by a cover member 30 (cover plate 32). Therefore, liquid and gas in the fluid tank will not accidentally leak to the outside, and liquid and gas will not be mixed in from the outside.

[0038] The detachable member 34 is attached to the insertion hole 44 of the cover plate 32. As shown in Figures 5 and 6, the detachable member 34 has an attachment plate 48 attached to the cover plate 32 and a holder 50 corresponding to the type of insertion member 46. Therefore, by attaching the attachment plate 48 to the cover plate 32 with bolts 52 while the insertion member 46 is held by the holder 50, the insertion member 46 can be maintained in a state of being inserted into a predetermined insertion hole 44.

[0039] The mounting plate 48 and the closing plate 58 in each detachable member 34 have a common shape and a common mounting structure to the cover plate 32. Therefore, it is possible to insert a desired insertion member 46 into any insertion hole 44 (see FIG. 3) or to close the insertion hole 44. That is, when various different types of insertion members 46 are inserted into or attached to the cover plate 32, and when any of the insertion holes 44 is closed with the closing plate 58, there is a high degree of freedom in the arrangement position.

[0040] Furthermore, for example, during maintenance of the fluid tank, the various insertion members 46 inserted into the cover plate 32 may be temporarily removed and then reattached after maintenance. When adding or replacing various parts in the liquid tank, the insertion members 46 may also be added or replaced at the same time. In this embodiment, these maintenance, addition, and replacement operations are easy.

[0041] The detachable member 34 has a holder 50. The functions are separated between an attachment plate 48, which is a portion that is detachably attached to the cover plate 32, and the holder 50, which is a portion that holds the insertion member 46. Therefore, the holder 50 can reliably hold the insertion member 46.

[0042] The shapes of the insertion holes 44 in the cover plates 32 are the same. Therefore, the detachable members 34 corresponding to the insertion holes 44 can easily have a common shape and structure. This allows the parts attached to the insertion holes 44 of the multiple detachable members 34 to be versatile.

[0043] The mounting plate 48 has a protruding portion 48T. The protruding portion 48T protrudes outward beyond the insertion hole 44 when viewed in the normal direction of the mounting plate 48. The detachable member 34 can be attached to the cover plate 32 easily and reliably by using this protruding portion 48T.

[0044] In this embodiment, the insertion hole 44 is circular, and the mounting plate 48 is rectangular. This reduces the wasted space around the insertion hole 44 for arranging the mounting plate 48, and allows the mounting plate 48 and the insertion hole 44 to be arranged at high density. That is, if the mounting plate 48 were made circular, for example, the mounting plate would become large because protruding portions 48T would exist all around the insertion hole 44. In this embodiment, the mounting plate 48 is provided with protruding portions 48T at the corners thereof, and a shape is realized in which the portion other than the protruding portions 48T does not protrude significantly outward from the insertion hole 44.

[0045] In this embodiment, a seal member 56 is provided. The seal member 56 seals between the cover plate 32 and the mounting plate 48 around the insertion hole 44 of the cover plate 32. This makes it possible to prevent liquid and gas in the biological treatment tank 300 from leaking out from between the cover plate 32 and the mounting plate 48 to the outside.

[0046] The seal member 56 has a protruding portion 56T. The seal member 56 is sandwiched at this protruding portion 56T between the protruding portion 48T of the mounting plate 48 and the cover plate 32. Therefore, compared to a structure in which the seal member 56 does not have the protruding portion 56T, the seal member 56 can be securely sandwiched between the mounting plate 48 and the cover plate 32. Since the seal member 56 is sandwiched at the portion where the mounting plate 48 is fixed to the cover plate 32 by the bolts 52, displacement of the seal member 56 can be suppressed.

[0047] In this embodiment, the detachable members 34 correspond one-to-one to the insertion holes 44. Therefore, the detachable members 34 equipped with specific holders 50 can be attached to the cover plate 32 in correspondence with each of the multiple insertion holes 44 individually.

[0048] Although the above describes an example of a configuration in which the liquid treatment device 16 is incorporated into the water circulation system 12 shown in FIG. 1, the liquid treatment device may be incorporated into other types of water circulation systems 12.

[0049] In addition, the following notes are disclosed: (Appendix 1) a cover plate attached to a fluid tank body that contains a fluid, covering an opening of the fluid tank body and having a plurality of insertion holes; a detachable member that is detachably attached to the cover plate and covers the insertion hole; A cover member having the same. (Appendix 2) The detachable member has a holder for holding an insertion member to be inserted into the insertion hole. (Appendix 3) The cover member according to claim 1 or 2, wherein the cover plate has a plurality of the insertion holes having the same shape. (Appendix 4) The detachable member has a protruding portion that protrudes outward from the insertion hole when viewed in a normal direction of the cover plate. (Appendix 5) The insertion hole is circular, The detachable member is a rectangular plate-shaped cover member having the protruding portions at four corners. (Appendix 6) 6. The cover member according to claim 5, further comprising a seal member for sealing between the cover plate and the detachable member around the insertion hole. (Appendix 7) 7. The cover member according to claim 6, wherein the sealing member is sandwiched between the protruding portion of the detachable member and the cover plate. (Appendix 8) The detachable members are in one-to-one correspondence with the insertion holes. (Appendix 9) A fluid tank body that contains a fluid; a cover plate attached to the fluid tank body to cover an opening of the fluid tank body and having a plurality of insertion holes; and a detachable member attached to the cover plate in a detachable manner to cover the insertion holes; A fluid reservoir comprising: (Appendix 10) A fluid tank body that contains a fluid; a cover plate attached to the fluid tank body to cover an opening of the fluid tank body and having a plurality of insertion holes; and a detachable member attached to the cover plate in a detachable manner to cover the insertion holes; and a fluid treatment device for treating the fluid contained inside the fluid tank body. [Explanation of symbols]

[0050] 12 Water Circulation System 16 Liquid treatment equipment (an example of a fluid treatment equipment) 18. Cabinet 20 Fluid tank body 22 Water Circulation System 28 Aperture 30 Lid member 32 Lid plate 34 Detachable parts 44 Insertion hole 46 Insertion member 48 Mounting plate 48T protruding part 50 Holder 54 Through hole 56 Sealing material 56T protruding part

Claims

1. a cover plate attached to a fluid tank body that contains a fluid, covering an opening of the fluid tank body and having a plurality of insertion holes; a detachable member that is detachably attached to the cover plate and covers the insertion hole; A cover member having the same.

2. The cover member according to claim 1 , wherein the detachable member has a holder that holds an insertion member that is inserted into the insertion hole.

3. The cover member according to claim 1 , wherein the cover plate has a plurality of the insertion holes having the same shape.

4. The cover member according to claim 2 , wherein the detachable member has a protruding portion that protrudes outward beyond the insertion hole when viewed in a normal direction of the cover plate.

5. The insertion hole is circular, The cover member according to claim 4 , wherein the detachable member is in the form of a rectangular plate and has the protruding portions at four corners.

6. The cover member according to claim 5, further comprising a seal member for sealing between the cover plate and the detachable member around the insertion hole.

7. The cover member according to claim 6 , wherein the seal member is sandwiched between the protruding portion of the detachable member and the cover plate.

8. The cover member according to claim 1 , wherein the detachable members correspond one-to-one to the insertion holes.

9. A fluid tank body that contains a fluid; a cover plate attached to the fluid tank body to cover an opening of the fluid tank body and having a plurality of insertion holes; and a detachable member attached to the cover plate in a detachable manner to cover the insertion holes; A fluid reservoir comprising:

10. A fluid tank body that contains a fluid; a cover plate attached to the fluid tank body to cover an opening of the fluid tank body and having a plurality of insertion holes; and a detachable member attached to the cover plate in a detachable manner to cover the insertion holes; a fluid tank body that is adapted to process the fluid contained therein.

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