Cleaning device for EDI membrane stack

Abstract

The utility model discloses a cleaning device for an EDI membrane stack, which relates to the technical field of EDI membrane stack cleaning and comprises a collecting bucket, a fixing ring fixedly mounted at the top end of the outer side wall of the collecting bucket, a supporting main rod fixedly mounted at the top end of the fixing ring, a mounting plate fixedly mounted at the top end of the supporting main rod, and a supporting plate movably arranged at the top end of the collecting bucket. An auxiliary rotating assembly is arranged between the bottom end of the supporting plate and the top end of the collecting bucket, a rotating extrusion assembly is arranged below the mounting plate, a water conveying main pipe communicated with a water source is arranged on the outer side wall of the supporting main rod and communicated with a plurality of water conveying auxiliary pipes, the other ends of the water conveying auxiliary pipes penetrate through the supporting main rod, and the tail ends of the water conveying auxiliary pipes are communicated with spraying heads. Through the arrangement of the water passing hole and the water collecting funnel, water after cleaning enters the water collecting bucket through the water passing hole and the water collecting funnel, then waste water collection is achieved, the waste water can be discharged through the water discharging pipe or recycled, and waste of water resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of EDI stack cleaning, in particular to a cleaning device for an EDI stack. Background Art

[0002] An EDI stack is a device used for water treatment, mainly used to remove ions and dissolved salts in water. The EDI stack combines electrochemistry and ion exchange technologies, and can efficiently remove ions in water to produce high-purity water. The EDI stack is usually composed of a cation exchange membrane, an anion exchange membrane, and an ion selective membrane. In the EDI stack, by applying an electric field and using the selective permeability of the ion exchange membrane, the ions in water are separated. The cation exchange membrane selectively adsorbs and removes cations, the anion exchange membrane selectively adsorbs and removes anions, and the ion selective membrane helps to separate and remove the ions in water.

[0003] Application No.: CN202022094108.5 discloses an EDI stack cleaning device, including a cylinder body. A limiting ring is fixedly installed in the middle of the inner wall of the cylinder body. A hole plate is movably installed on the top of the limiting ring. Five support columns of the same size are fixedly installed at the bottom of the hole plate. A drain pipe is connected and installed on the right side of the bottom of the cylinder body. A control switch is detachably installed on the right side of the outer wall of the cylinder body. A cover body is hingedly installed on the top of the cylinder body. A power supply seat is detachably installed on the inner wall of the cover body. Five ultraviolet lamps of the same model are electrically installed on the power supply seat. In the utility model, the resin plate to be cleaned is placed through the hole plate, the connecting pipe is connected to an external water source, and four spray heads spray clean water to wash the surface of the resin plate. During the washing process, ultraviolet light is emitted by the ultraviolet lamps to perform ultraviolet disinfection on the resin plate to ensure the sterility of the resin plate. Since support columns are arranged at the bottom of the hole plate, the supporting ability of the hole plate can be enhanced, and the hole plate can be prevented from collapsing.

[0004] However, when the above device is used, the cleaning liquid and water used during the cleaning process cannot be collected, so that the cleaning liquid cannot be recycled, which is not conducive to reducing costs. Therefore, a cleaning device for an EDI stack needs to be proposed. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a cleaning device for an EDI stack.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A cleaning device for an EDI membrane stack, comprising a collection water bucket, a fixing ring is fixedly installed at the top end of the outer side wall of the collection water bucket, a main support rod is fixedly installed at the top end of the fixing ring, the top end of the main support rod is fixedly installed on the mounting plate, a support plate is movably arranged at the top end of the collection water bucket, an auxiliary rotation assembly is arranged between the bottom end of the support plate and the top end of the collection water bucket, a rotation extrusion assembly is arranged below the mounting plate, a main water delivery pipe communicated with a water source is arranged on the outer side wall of the main support rod, a plurality of auxiliary water delivery pipes are communicated with the main water delivery pipe, the other end of the auxiliary water delivery pipe penetrates through the main support rod, and a spray head is communicated with the end of the auxiliary water delivery pipe.

[0008] Preferably, the auxiliary rotation assembly includes an annular track fixedly installed at the top end of the collection water bucket, a plurality of support columns are evenly arranged at equal intervals in the annular track, the support columns are fixedly installed at the bottom end of the support plate, an annular sliding groove is opened on the inner side wall of the annular track, a pair of fixed sliding blocks are fixedly installed on the outer side wall of the support column, the fixed sliding blocks are slidably arranged in the annular sliding groove, a rotating ball is rotatably installed at the bottom end of each support column, and the outer side wall of the rotating ball is attached to the inner bottom end of the annular track;

[0009] For facilitating the rotation of the support plate. When the EDI membrane stack drives the support plate to rotate, the support columns rotate in the annular track, the fixed sliding blocks rotate in the annular sliding groove, and at the same time, the rotating balls rotate, reducing the friction between the support columns and the annular track and facilitating the rotation of the support plate.

[0010] Preferably, a plurality of water passing holes are evenly opened at equal intervals in the center of the support plate, and a water retaining ring is fixedly installed on the outer side wall of the top end of the support plate;

[0011] For facilitating the water flow to return to the collection water bucket.

[0012] Preferably, the rotation extrusion assembly includes a rotating plate movably arranged below the mounting plate, an electric telescopic rod is fixedly installed at the bottom end of the rotating plate, an extrusion plate is fixedly installed at the movable end of the electric telescopic rod, a protective rubber pad is fixedly installed at the bottom end of the extrusion plate, a rotating shaft rotatably penetrates through the center of the mounting plate, and one end of the rotating shaft is coaxially and fixedly connected with the top end of the rotating plate;

[0013] A forward and reverse motor is fixedly installed at the top end of the mounting plate, the output shaft of the forward and reverse motor is coaxially and fixedly connected with the rotating shaft, L-shaped fixing blocks are fixedly installed at equal intervals on the top end of the rotating plate, an L-shaped ring groove is opened at the bottom end of the mounting plate, and the L-shaped fixing blocks are slidably arranged in the L-shaped ring groove;

[0014] It is used to squeeze the EDI membrane stack between the support plate and the pressing plate, drive the rotation of the EDI membrane stack. After placing the EDI membrane stack on the support plate, the electric telescopic rod pushes the pressing plate downward to make the protective rubber pad in close contact with the top of the EDI membrane stack, squeezing the EDI membrane stack between the support plate and the pressing plate. Then start the forward and reverse motor, and the forward and reverse motor drives the rotating plate to rotate through the rotating shaft, thereby driving the rotation of the EDI membrane stack. When the rotating plate rotates, the L-shaped fixing block rotates in the L-shaped annular groove, thereby increasing the connection between the rotating plate and the mounting plate.

[0015] Preferably, a water collecting funnel is communicated with the inner top end of the collecting water bucket, a drain pipe is communicated with the outer side wall of the bottom end of the collecting water bucket, and a plurality of supporting auxiliary rods are fixedly installed between the top end of the fixing ring and the bottom end of the mounting plate;

[0016] It is used to collect the water after cleaning. The water after cleaning enters the collecting water bucket through the water passing holes and the water collecting funnel, thereby realizing the collection of waste water. The waste water can be discharged through the drain pipe or reused.

[0017] The utility model has the following beneficial effects:

[0018] 1. By arranging the water passing holes and the water collecting funnel, the water after cleaning enters the collecting water bucket through the water passing holes and the water collecting funnel, thereby realizing the collection of waste water. The waste water can be discharged through the drain pipe or reused.

[0019] 2. By arranging the rotating and squeezing assembly, after placing the EDI membrane stack on the support plate, the electric telescopic rod pushes the pressing plate downward to make the protective rubber pad in close contact with the top of the EDI membrane stack, squeezing the EDI membrane stack between the support plate and the pressing plate. Then start the forward and reverse motor, and the forward and reverse motor drives the rotating plate to rotate through the rotating shaft, thereby driving the rotation of the EDI membrane stack. When the rotating plate rotates, the L-shaped fixing block rotates in the L-shaped annular groove, thereby increasing the connection between the rotating plate and the mounting plate.

[0020] 3. By arranging the auxiliary rotating assembly, when the EDI membrane stack drives the support plate to rotate, the support column rotates in the annular track, the fixed slider rotates in the annular sliding groove, and at the same time the rotating ball rotates, reducing the friction between the support column and the annular track and facilitating the rotation of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic external structure diagram of a cleaning device for an EDI membrane stack proposed by the utility model;

[0022] Figure 2 It is a schematic longitudinal sectional structure diagram of a cleaning device for an EDI membrane stack proposed by the utility model;

[0023] Figure 3Schematic diagram of the separation structure between the support plate and the annular track of the present utility model;

[0024] Figure 4 Schematic sectional structure diagram of the annular track of the present utility model;

[0025] Figure 5 Schematic structure diagram of the rotating extrusion assembly of the present utility model.

[0026] In the figure: 1. Collection water bucket; 11. Water collection funnel; 12. Drain pipe; 2. Fixed ring; 3. Main support rod; 31. Sub-support rod; 4. Installation plate; 5. Support plate; 51. Water passing hole; 52. Water retaining ring; 6. Auxiliary rotating assembly; 61. Annular track; 611. Annular sliding groove; 62. Support column; 621. Fixed slider; 622. Rotating ball; 7. Rotating extrusion assembly; 71. Rotating plate; 72. Electric telescopic rod; 73. Extrusion plate; 74. Protective rubber pad; 75. Rotating shaft; 76. Forward and reverse motor; 77. L-shaped fixing block; 78. L-shaped annular groove; 8. Main water delivery pipe; 81. Sub-water delivery pipe; 82. Spraying head. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] Refer to Figures 1-4 , a cleaning device for an EDI membrane stack, including a collection water bucket 1, a fixed ring 2 is fixedly installed at the top end of the outer side wall of the collection water bucket 1, a main support rod 3 is fixedly installed at the top end of the fixed ring 2, the top end of the main support rod 3 is fixedly installed on the installation plate 4, a support plate 5 is movably arranged at the top end of the collection water bucket 1, an auxiliary rotating assembly 6 is arranged between the bottom end of the support plate 5 and the top end of the collection water bucket 1, a rotating extrusion assembly 7 is arranged below the installation plate 4, a main water delivery pipe 8 communicated with a water source is arranged on the outer side wall of the main support rod 3, the main water delivery pipe 8 is communicated with a plurality of sub-water delivery pipes 81, the other end of the sub-water delivery pipe 81 penetrates through the main support rod 3, and the end of the sub-water delivery pipe 81 is communicated with a spraying head 82.

[0030] The auxiliary rotating assembly 6 includes an annular track 61 fixedly installed at the top end of the collection water bucket 1. A number of support columns 62 are evenly arranged at equal intervals within the annular track 61. The support columns 62 are fixedly installed at the bottom end of the support plate 5. An annular sliding groove 611 is formed on the inner side wall of the annular track 61. A pair of fixed sliders 621 are fixedly installed on the outer side wall of the support column 62. The fixed sliders 621 are slidably arranged in the annular sliding groove 611. Rotating balls 622 are rotatably installed at the bottom ends of the support columns 62. The outer side wall of the rotating ball 622 is in contact with the inner bottom end of the annular track 61.

[0031] A number of water passing holes 51 are evenly arranged at equal intervals in the center of the support plate 5. A water retaining ring 52 is fixedly installed on the outer side wall of the top end of the support plate 5.

[0032] The rotating and squeezing assembly 7 includes a rotating plate 71 movably arranged below the mounting plate 4. An electric telescopic rod 72 is fixedly installed at the bottom end of the rotating plate 71. The movable end of the electric telescopic rod 72 is fixedly installed with a squeezing plate 73. A protective rubber pad 74 is fixedly installed at the bottom end of the squeezing plate 73. A rotating shaft 75 is rotatably penetrated through the center of the mounting plate 4. One end of the rotating shaft 75 is coaxially and fixedly connected to the top end of the rotating plate 71.

[0033] A forward and reverse motor 76 is fixedly installed at the top end of the mounting plate 4. The output shaft of the forward and reverse motor 76 is coaxially and fixedly connected to the rotating shaft 75. L-shaped fixing blocks 77 are fixedly installed at equal intervals on the top end of the rotating plate 71. An L-shaped ring groove 78 is formed at the bottom end of the mounting plate 4. The L-shaped fixing blocks 77 are slidably arranged in the L-shaped ring groove 78.

[0034] A water collecting funnel 11 is communicated with the inner top end of the collection water bucket 1. A drain pipe 12 is communicated with the outer side wall of the bottom end of the collection water bucket 1. A number of support auxiliary rods 31 are fixedly installed between the top end of the fixed ring 2 and the bottom end of the mounting plate 4.

[0035] In the present utility model, after the EDI membrane stack is placed on the support plate 5, the electric telescopic rod 72 pushes the pressing plate 73 to move downward, so that the protective rubber pad 74 is in close contact with the top end of the EDI membrane stack, and the EDI membrane stack is squeezed between the support plate 5 and the pressing plate 73. The forward and reverse motor 76 is started, and the forward and reverse motor 76 drives the rotating plate 71 to rotate through the rotating shaft 75, thereby driving the EDI membrane stack to rotate. When the rotating plate 71 rotates, the L-shaped fixing block 77 rotates in the L-shaped annular groove 78, thereby increasing the connection between the rotating plate 71 and the mounting plate 4. When the EDI membrane stack drives the support plate 5 to rotate, the support column 62 rotates in the annular track 61, and the fixed slider 621 rotates in the annular sliding groove 611. At the same time, the rotating ball 622 rotates, reducing the friction between the support column 62 and the annular track 61 and facilitating the rotation of the support plate 5. The external water flow is conveyed to the water conveyance sub-pipe 81 through the water conveyance main pipe 8 and then sprayed out from the spray head 82 to clean the EDI membrane stack. The water after cleaning enters the collection water bucket 1 through the water passing holes 51 and the water collection funnel 11, thereby realizing the collection of waste water. The waste water can be discharged through the drain pipe 12 or reused to avoid waste of resources.

[0036] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A cleaning device for an EDI membrane stack, comprising a water collection bucket (1), characterized in that: A fixing ring (2) is fixedly mounted on the top of the outer wall of the water collection bucket (1), a supporting main rod (3) is fixedly mounted on the top of the fixing ring (2), the top of the supporting main rod (3) is fixedly mounted on a mounting plate (4), a supporting plate (5) is movably mounted on the top of the water collection bucket (1), an auxiliary rotating assembly (6) is arranged between the bottom end of the supporting plate (5) and the top of the water collection bucket (1), a rotating extrusion assembly (7) is arranged below the mounting plate (4), a water supply main pipe (8) connected to a water source is arranged on the outer wall of the supporting main rod (3), the water supply main pipe (8) is connected to a plurality of water supply auxiliary pipes (81), the other end of the water supply auxiliary pipe (81) passes through the supporting main rod (3), and the end of the water supply auxiliary pipe (81) is connected to a spray head (82).

2. The EDI membrane stack cleaning device according to claim 1, characterized in that: The auxiliary rotating assembly (6) comprises an annular track (61) fixedly mounted on the top of the water collection bucket (1), a plurality of support columns (62) are evenly and equidistantly arranged in the annular track (61), the support columns (62) are fixedly mounted on the bottom of the support plate (5), an annular slide groove (611) is provided on the inner side wall of the annular track (61), a pair of fixed sliding blocks (621) are fixedly mounted on the outer side wall of the support column (62), the fixed sliding blocks (621) are slidably arranged in the annular slide groove (611), a rotating ball (622) is rotatably mounted on the bottom end of each support column (62), and the outer side wall of the rotating ball (622) is in contact with the inner bottom end of the annular track (61).

3. The EDI membrane stack cleaning device according to claim 1, characterized in that: A plurality of water holes (51) are evenly and equidistantly formed in the center of the support plate (5), and a water retaining ring (52) is fixedly mounted on the outer side wall of the top end of the support plate (5).

4. The EDI membrane stack cleaning device according to claim 1, characterized in that: The rotating extrusion assembly (7) comprises a rotating plate (71) movably arranged below the mounting plate (4); an electric telescopic rod (72) is fixedly mounted on the bottom end of the rotating plate (71); an extrusion plate (73) is fixedly mounted on the movable end of the electric telescopic rod (72); a protective rubber pad (74) is fixedly mounted on the bottom end of the extrusion plate (73); a rotating shaft (75) is rotatably penetrated through the center of the mounting plate (4); one end of the rotating shaft (75) is coaxially fixedly connected to the top end of the rotating plate (71).

5. The EDI membrane stack cleaning device according to claim 4, characterized in that: A forward and reverse motor (76) is fixedly mounted on the top of the mounting plate (4), and the output shaft of the forward and reverse motor (76) is coaxially fixedly connected to the rotating shaft (75). An L-shaped fixing block (77) is evenly and equidistantly fixedly mounted on the top of the rotating plate (71). An L-shaped annular groove (78) is formed at the bottom of the mounting plate (4), and the L-shaped fixing block (77) is slidably arranged in the L-shaped annular groove (78).

6. The EDI membrane stack cleaning device according to claim 1, characterized in that: The top of the water collecting bucket (1) is connected to a water collecting funnel (11), the outer wall of the bottom of the water collecting bucket (1) is connected to a drainage pipe (12), and a plurality of supporting auxiliary rods (31) are fixedly installed between the top of the fixing ring (2) and the bottom of the mounting plate (4).

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