Electrodialysis membrane stack cleaning device

Abstract

The utility model discloses an electrodialysis membrane stack cleaning device in the technical field of cleaning devices, which comprises a base, a water tank and a water pump, a plurality of supporting legs are fixedly connected to the lower end of the base, a water inlet pipe is arranged at the upper end of the water tank, the water tank and the water pump are both fixedly connected to the upper end of the base, and the water pump is connected to the water tank to reversely convey water to an electrodialysis membrane stack. And the water tank is connected with a filtering mechanism and a cleaning mechanism. The utility model has the advantages that water in the water tank is reversely guided into the electrodialysis membrane stack by utilizing the water pump to carry out back-flushing cleaning, and meanwhile, the circulating pipe is connected with the electrodialysis membrane stack, so that back-flushing water flows back to the box body, and the water is recycled. After solid impurities in water are filtered out and cleaned through the filtering mechanism, the water pump can continuously use water in the water tank to carry out backflushing cleaning and impurity cleaning on the electrodialysis membrane stack, water resources are saved, impurities accumulated on one side of the filtering piece can be lifted through the cleaning mechanism and then cleaned through the cleaning opening, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, specifically to an electrodialysis membrane stack cleaning device. Background Technology

[0002] With the increasing severity of water scarcity, electrodialysis has become a widely used, highly efficient water purification technology. However, in actual operation, due to the complex and variable water quality, electrodialysis membranes are easily fouled, leading to problems such as decreased flux and increased energy consumption, which seriously affect the stability and economy of the system. Therefore, cleaning treatment is necessary.

[0003] In existing technologies, chemical agents are used for cleaning, such as acid and alkali cleaning or oxidant cleaning, which can easily damage the membrane material and cause aging. Some material cleaning equipment uses water backwashing to clean the electrodialysis membrane, but this requires a large amount of water resources. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing chemical cleaning of electrodialysis membrane stacks easily leads to damage to the membrane material, while physical backwashing requires a large amount of water resources.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] An electrodialysis membrane stack cleaning device includes a base with several support legs fixedly connected to the lower end of the base, a water tank and a water pump, an inlet pipe at the upper end of the water tank, and both the water tank and the water pump are fixedly connected to the upper end of the base. The water pump is connected to the water tank to reversely supply water to the electrodialysis membrane stack. A filtration mechanism and a cleaning mechanism are connected to the water tank.

[0007] The filtration mechanism includes a filter frame and a filter element, wherein the filter frame is inserted into the water tank and the filter element is fixed to the filter frame;

[0008] The cleaning mechanism includes a motor and a cleaning plate. The motor is fixed to the upper end of the water tank and drives the cleaning plate to slide up and down inside the water tank to lift solid impurities.

[0009] Furthermore, the pump is fixedly connected to a pumping pipe and a delivery pipe at both ends. The pumping pipe is fixedly connected to one side of the water tank and connected to the bottom end of the inner wall of the water tank. The other end of the pump is fixedly connected to a first flange and connected to the electrodialysis membrane stack pipeline through the first flange.

[0010] Furthermore, the water tank is provided with an installation groove, which extends through the upper end of the water tank and is open. The filter frame is inserted into the installation groove through the open end of the water tank. An installation plate is fixed to the upper end of the filter frame, and the installation plate is fixedly installed on the upper end of the water tank by bolts.

[0011] Furthermore, a sealing strip is fixedly connected in the mounting groove. The sealing strip is designed as an inverted U-shape, and the outer wall of the filter frame abuts against the sealing strip.

[0012] Furthermore, a screw is fixedly connected to the output end of the motor, and the screw is vertically rotatably connected to the inside of the water tank. A limit rod is fixedly connected inside the water tank. The cleaning plate is threadedly connected to the screw and slidably connected to the slide rod. The outer wall of the cleaning plate slidably fits against one side of the filter element on the mounting frame and the inner wall of the water tank. A cleaning port is provided at the upper end of the water tank, and a sealing block is inserted into the cleaning port. A part is fixedly attached to the sealing block and fits against the upper end of the water tank.

[0013] Furthermore, a circulation pipe connected to the water tank is fixed to the outside of the water tank, and a second flange is fixed to the end of the circulation pipe for connecting the electrodialysis membrane stack pipeline.

[0014] Furthermore, the inlet pipe and the outlet pipe are connected to one side of the filter element inside the water tank, and the cleaning port and the circulation pipe are connected to the other side of the filter element inside the water tank.

[0015] The beneficial effects of this utility model by adopting the above structure are as follows:

[0016] 1. Use a water pump to backflush and clean the water in the tank into the electrodialysis membrane stack. At the same time, connect the circulation pipe to the electrodialysis membrane stack so that the backflush water flows back into the tank. After the solid impurities in the water are filtered out by the filtration mechanism, the water pump can continuously use the water in the tank to backflush and clean the electrodialysis membrane stack, thus saving water resources.

[0017] 2: The cleaning mechanism can lift the impurities accumulated on one side of the filter element and remove them through the cleaning port. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the entire machine of this utility model.

[0019] Figure 2 This is a cross-sectional view of the water tank of this utility model.

[0020] Figure 3 This is the sealing strip of this utility model.

[0021] Figure 4 This is the filtration mechanism of this utility model.

[0022] Figure 5 This is a schematic diagram of the sealing block of this utility model.

[0023] Figure 6 This is a schematic diagram of the cleaning mechanism of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base, 101. Support leg, 2. Water tank, 201. Inlet pipe, 202. Mounting groove, 203. Sealing strip, 204. Circulation pipe, 205. Second flange, 206. Cleaning port, 207. Sealing block, 208. Cover plate, 3. Water pump, 301. Pumping pipe, 302. Water supply pipe, 303. First flange, 4. Filter mechanism, 401. Filter frame, 402. Filter element, 403. Mounting plate, 404. Bolt, 5. Cleaning mechanism, 501. Motor, 502. Screw, 503. Limiting rod, 504. Cleaning plate. Detailed Implementation

[0026] like Figure 1-6 As shown, the electrodialysis membrane stack cleaning device includes a base 1, with several support legs 101 fixedly connected to the lower end of the base 1. It also includes a water tank 2 and a water pump 3. The upper end of the water tank 2 is provided with a water inlet pipe 201. Both the water tank 2 and the water pump 3 are fixedly connected to the upper end of the base 1. The water pump 3 is connected to the water tank 2 to reverse-feed water to the electrodialysis membrane stack. Both ends of the water pump 3 are fixedly connected to a pumping pipe 301 and a delivery pipe 302. The pumping pipe 301 is fixedly connected to one side of the water tank 2 and communicates with the bottom end of one side of the inner wall of the water tank 2. The other end of the water pump 3 is fixedly connected to... A first flange 303 is provided and connected to the electrodialysis membrane stack pipeline. A filter mechanism 4 and a cleaning mechanism 5 are connected to the water tank 2. The electrodialysis membrane stack is cleaned by backwashing water supplied by the water pump 3. The filter mechanism 4 is used for filtration in the circulation. It should be noted that different filter elements 402 can filter out different substances. In practice, different filter elements 402, such as filter screens or various filter membranes, are fixed in the filter frame 401 according to the requirements. The cleaning mechanism 5 is used to clean the filtered impurities.

[0027] like Figure 2-4 As shown, the filtration mechanism 4 includes a filter frame 401 and a filter element 402. The filter frame 401 is inserted into the water tank 2, and the filter element 402 is fixedly connected to the filter frame 401. The water tank 2 is provided with an installation groove 202, which extends through the upper end of the water tank 2 and is open. The filter frame 401 is inserted into the installation groove 202 through the open end of the water tank 2. An installation plate 403 is fixedly connected to the upper end of the filter frame 401. The installation plate 403 is fixedly installed on the upper end of the water tank 2 by bolts 404. A sealing strip 203 is fixedly connected inside the installation groove 202. The sealing strip 203 is designed as an inverted U-shape. The outer wall of the filter frame 401 abuts against the sealing strip 203. The circulating cleaning water is filtered by the installed filter element 402 in the water tank 2, allowing only the water to circulate continuously to backwash and clean the electrodialysis membrane stack.

[0028] like Figure 2 , 5As shown in Figure 6, the cleaning mechanism 5 includes a motor 501 and a cleaning plate 504. The motor 501 is fixed to the upper end of the water tank 2 and drives the cleaning plate 504 to slide up and down in the water tank 2 to lift solid impurities. A screw 502 is fixed to the output end of the motor 501. The screw 502 is vertically rotatably connected to the water tank 2. A limit rod 503 is fixed inside the water tank 2. The cleaning plate 504 is threaded to the screw 502 and slidably connected to the slide rod. The outer wall of the cleaning plate 504 slides against one side of the filter element 402 on the mounting frame and the inner wall of the water tank 2. A cleaning port 206 is provided at the upper end of the water tank 2. A sealing block 207 is inserted into the cleaning port 206. A seal is fixed to the sealing block 207 and adheres to the upper end of the water tank 2. The cleaning mechanism 5 lifts the impurities filtered by the filter element 402 and then removes them through the cleaning port 206.

[0029] A circulation pipe 204 connected to the outside of the water tank 2 is fixedly connected to the outside of the water tank 2. A second flange 205 is fixedly connected to the end of the circulation pipe 204 for connecting the electrodialysis membrane stack pipeline. The inlet pipe 201 and the pumping pipe 301 are connected to one side of the filter element 402 inside the water tank 2. The cleaning port 206 and the circulation pipe 204 are connected to the other side of the filter element 402 inside the water tank 2.

[0030] In use, this invention adds clean water to the water tank 2 through the inlet pipe 201. Water is then pumped from the water tank 2 through the pumping pipe 301 via the pump 3. The water delivery pipe 302 is connected to the electrodialysis membrane stack via the first flange 303. Water is then used to backflush one end of the electrodialysis membrane stack for cleaning. The circulation pipe 204 is connected to the other end of the electrodialysis membrane stack via the second flange 205, allowing the backflushing water to circulate back into the water tank 2. The circulating cleaning water is filtered by the filter element 402 in the water tank 2 before being pumped back into the water tank 2 via the pumping pipe 301. The electrodialysis membrane stack is backwashed and cleaned multiple times. The filter element 402 filters out impurities that accumulate on the upper end of the cleaning plate 504. The sealing block 207 is pulled out from the cleaning port 206 through the cover plate 208. The output end of the motor 501 drives the screw 502 to rotate. Under the sliding limit action of the limit rod 503 on the cleaning plate 504, the screw 502 rotates and drives the cleaning plate 504 to rise vertically upward, thereby lifting the filtered impurities to the cleaning port 206, where the impurities can then be manually removed.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An electrodialysis membrane stack cleaning device, comprising a base (1), the lower end of the base (1) is fixedly connected with a plurality of supporting legs (101), characterized in that: It also includes a water tank (2) and a water pump (3), the upper end of the water tank (2) is provided with a water inlet pipe (201), the water tank (2) and the water pump (3) are fixedly connected to the upper end of the base (1), the water pump (3) is connected to the water tank (2) to reverse the water supply of the electrodialysis membrane stack, the water tank (2) is connected with a filtering mechanism (4) and a cleaning mechanism (5); The filtering mechanism (4) comprises a filtering frame (401) and a filter (402), the filtering frame (401) is inserted into the water tank (2), and the filter (402) is fixedly connected to the filtering frame (401); The cleaning mechanism (5) comprises a motor (501) and a cleaning plate (504), the motor (501) is fixedly connected to the upper end of the water tank (2) and drives the cleaning plate (504) to slide up and down in the water tank (2) to lift solid impurities.

2. The electrodialysis stack washing apparatus according to claim 1, characterized by: The water pump (3) is fixedly connected with a water suction pipe (301) and a water delivery pipe (302) at both ends, the water suction pipe (301) is fixedly connected to one side of the water tank (2) and is communicated with the bottom end of the inner wall of the water tank (2), and the other end of the water pump (3) is fixedly connected with a first flange (303) and connected with the electrodialysis membrane stack pipeline through the first flange (303).

3. The electrodialysis stack washing apparatus of claim 2, wherein: The water tank (2) is provided with a mounting groove (202), the mounting groove (202) penetrates the upper end of the water tank (2) and is open, the filtering frame (401) is inserted into the mounting groove (202) from the open upper end of the water tank (2), and the upper end of the filtering frame (401) is fixedly connected with a mounting plate (403), and the mounting plate (403) is fixedly installed on the upper end of the water tank (2) through bolts (404).

4. The electrodialysis stack washing apparatus of claim 3, wherein: The mounting groove (202) is fixedly connected with a sealing strip (203), the sealing strip (203) is in inverted U shape, and the outer wall of the filtering frame (401) abuts against the sealing strip (203).

5. The electrodialysis stack washing apparatus of claim 4, wherein: The output end of the motor (501) is fixedly connected with a screw rod (502), the screw rod (502) is vertically rotatably connected in the water tank (2), a limiting rod (503) is fixedly connected in the water tank (2), the cleaning plate (504) is threadedly connected on the screw rod (502) and is slidably connected on the slide rod, the outer wall of the cleaning plate (504) is slidably attached to one side of the filter (402) on the mounting frame and the inner wall of the water tank (2), the upper end of the water tank (2) is provided with a cleaning port (206), the cleaning port (206) is inserted with a sealing block (207), and the sealing block (207) is fixedly connected with the upper end of the water tank (2).

6. The electrodialysis stack washing apparatus of claim 5, wherein: The outer side of the water tank (2) is fixedly connected with a circulating pipe (204) communicated with the water tank (2), and the end of the circulating pipe (204) is fixedly connected with a second flange (205) for connecting the electrodialysis membrane stack pipeline.

7. The electrodialysis stack washing apparatus of claim 6, wherein: The water inlet pipe (201) and the water suction pipe (301) are communicated with one side of the filter (402) in the water tank (2), and the cleaning port (206) and the circulating pipe (204) are connected for the other side of the filter (402) in the water tank (2).

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