Circulating filtration device for electrolyzed water

Abstract

The invention relates to the technical field of electrolyzed water, in particular to a circulating filtering device for electrolyzed water, which mainly comprises a support frame, a filtering mechanism, a vibrating mechanism, a water inlet pipe, a water outlet pipe, a water outlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe, a water outlet pipe and a water outlet pipe, and is characterized in that the top surface of the support frame is provided with an electrolytic tank and a cooling box; the vibration mechanism is arranged in the pipeline, and the knocking mechanism is arranged in the pipeline. When hydrogen is produced through reaction in the electrolytic cell, an external circulating pump circulates liquid in the electrolytic cell, when the liquid flows, fan blades are driven to rotate, the fan blades drive a rotating shaft and a rotating strip to rotate, the rotating strip drives a scraping strip and bristles to rotate, the bristles and the scraping strip remove potassium carbonate filtered from the side face of a filter plate, and the potassium carbonate cannot block the filter plate; the efficiency of liquid entering the cooling box from the filter plate and entering the electrolytic bath again is improved, meanwhile, it is guaranteed that potassium carbonate does not circulate into the electrolytic bath again to cover the surface of an electrode, and the electrolysis efficiency is further improved.

Description

Technical Field

[0001] This invention relates to the field of water electrolysis technology, specifically to a circulating filtration device for water electrolysis. Background Technology

[0002] Hydrogen energy, as a clean, efficient, and renewable energy carrier, is considered a key bridge connecting fossil fuels and renewable energy. With the accelerated global energy structure transformation, hydrogen energy technology is increasingly being applied in fields such as electricity, heating, and fuel cell vehicles, placing higher demands on the efficiency, cost, and environmental friendliness of hydrogen production technologies. Hydrogen production is the primary step in hydrogen energy utilization, and its technological routes encompass fossil fuel-based hydrogen production, water electrolysis-based hydrogen production, and biomass-based hydrogen production.

[0003] In the process of producing hydrogen through water electrolysis, a direct current voltage drives water molecules to undergo an electrochemical reaction in the electrolyzer. Under alkaline conditions, in an anion exchange membrane electrolysis cell, water decomposes into O2 and H2 at the anode. + And electrons, H + Hydrogen gas is produced and collected by migrating through the membrane to the cathode, where it combines with electrons to generate H2.

[0004] During water electrolysis, hydrogen and oxygen are released as bubbles on the electrode surface. If the electrolyte stagnates, the bubbles will accumulate to form a "gas film," hindering the contact between the electrolyte and the electrode. This prevents the reactants from being replenished in time, and hydrogen / oxygen cannot diffuse rapidly, leading to concentration polarization and reducing the reaction rate. At the same time, hydrogen is produced at the cathode and oxygen at the anode during water electrolysis. Water is also consumed, and the concentration of potassium hydroxide electrolyte may increase, leading to increased solution viscosity, decreased conductivity, and even the precipitation of solid potassium carbonate. These precipitates adhere to the electrode surface, increasing resistance and further reducing electrolysis efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a circulating filtration device for water electrolysis to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A circulating filtration device for water electrolysis includes: a support frame, an electrolytic cell and a cooling tank mounted on the top surface of the support frame, an outlet pipe and an inlet pipe mounted at both ends of the electrolytic cell, one end of the outlet pipe being connected to the cooling tank via a pipe, a connecting pipe being installed on the outer wall of the inlet pipe, one end of the inlet pipe being connected to the cooling tank via a circulating pump, and the bottom surface of the circulating pump being fixedly connected to the side of the cooling tank via a mounting frame; the device also includes:

[0008] The filter mechanism is installed inside the pipeline. The filter mechanism includes a fixed plate that is fixedly installed on the inner wall of the pipeline. A filter hole is opened through the side of the fixed plate. A filter plate is fixedly installed on the inner wall of the filter hole. A rotating shaft is rotatably installed through the side of the fixed plate via a bearing seat. The filter mechanism is used to filter liquids.

[0009] The vibration mechanism is located inside the pipe. The vibration mechanism includes a fixed tube located inside the filter hole, a fixed strip fixedly installed on the outer wall of the fixed tube, a movable sleeve slidably installed on the outer wall of the fixed tube, and a striking head on one side of the fixed tube. The vibration mechanism is used to strike the filter plate.

[0010] The striking mechanism is located inside the pipe and includes a striking head located inside the filter hole. The striking mechanism is used to strike the inner wall of the filter hole.

[0011] Preferably, the filter has multiple filter holes, the side of the filter plate is flush with the side of the fixed plate, a fan blade is fixedly installed on the outer wall of one end of the rotating shaft, and a rotating bar is fixedly installed on the outer wall of the other end of the rotating shaft.

[0012] Preferably, a scraper and multiple brush bristles are fixedly installed on the side of the rotating bar, and one end of the multiple brush bristles and the side of the scraper are slidably connected to the side of the fixed plate and the side of the filter plate.

[0013] Preferably, a collection hole is provided through the outer wall of the lower end of the pipe, the inner wall of one side of the collection hole is flush with the side of the fixing plate, a collection frame is fixedly installed on the outer wall of the lower end of the pipe, and a sealing door is installed on the bottom surface of the collection frame.

[0014] Preferably, multiple fixing strips are provided, and the other end of the multiple fixing strips is fixedly connected to the inner wall of the filter hole. A movable column is slidably installed on the inner wall of the fixing tube. One end of the movable column is fixedly connected to the outer wall of the tapping head, and the outer wall of the tapping head is movably connected to the side of the filter plate.

[0015] Preferably, a circular plate is fixedly installed at the other end of the movable column, a hemisphere is fixedly installed on the side of the circular plate, an L-shaped strip is fixedly installed on the outer wall of the circular plate, and the other end of the L-shaped strip is fixedly connected to the side of the movable sleeve.

[0016] Preferably, a rotating plate is fixedly installed on the outer wall of the rotating shaft, and an extrusion strip is fixedly installed on the side of the rotating plate. The side of the extrusion strip is slidably connected to the outer wall of the hemisphere. An elastic element is slidably installed on the outer wall of the moving column, and the two ends of the elastic element are fixedly connected to the side of the fixed tube and the side of the circular plate, respectively.

[0017] Preferably, a fixing sleeve is fixedly installed on the outer wall of the fixing tube, and multiple limiting strips are fixedly installed on the side of the fixing sleeve. The side of the limiting strip is fixedly connected to the outer wall of the fixing tube, and a fixing block is fixedly installed on the other side of the limiting strip. Multiple limiting grooves are opened on the inner wall of the movable sleeve, and the inner walls of the multiple limiting grooves are slidably connected to the outer walls of the multiple limiting strips respectively.

[0018] Preferably, a plurality of fixed strips are respectively fixedly installed with hinge blocks one, and a knocking rod is respectively hinged to the inner wall of the plurality of hinge blocks one. A plurality of knocking heads two are provided, and the plurality of knocking rods are respectively fixedly connected to the outer wall of the plurality of knocking heads two. The outer wall of the knocking heads two is movably connected to the inner wall of the filter hole.

[0019] Preferably, a hinge block 2 is fixedly installed on the outer wall of a plurality of striking rods, and a support rod is hinged to the inner wall of a plurality of hinge blocks 2, and the other end of the plurality of support rods is hinged to the outer wall of the movable sleeve.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] In this invention, when hydrogen is produced by reaction in an electrolytic cell, an external circulation pump circulates the liquid in the electrolytic cell. This circulation prevents the electrolyte from stagnating and the accumulation of stagnant bubbles on the electrode surface, ensuring normal contact between the electrolyte and the electrodes. This allows for timely replenishment of reaction water, increasing the reaction rate. When the liquid enters the cooling tank through pipes, it is filtered by a filter plate to remove potassium carbonate. Simultaneously, the liquid flow drives a fan blade to rotate, which in turn drives a rotating shaft and a rotating bar. The rotating bar then drives a scraper and brush to rotate, removing the potassium carbonate filtered from the sides of the filter plate. This prevents the potassium carbonate from clogging the filter plate, improving the efficiency of the liquid entering the cooling tank and returning to the electrolytic cell from the filter plate. At the same time, it ensures that potassium carbonate does not recirculate back into the electrolytic cell, thus preventing it from covering the electrode surface and further improving the electrolysis efficiency.

[0022] When the rotating shaft rotates, it drives the rotating plate and the extrusion bar to rotate. The extrusion bar pushes multiple hemispheres to move in sequence. The hemispheres drive the circular plate and the moving column to move. When the circular plate moves, it squeezes the elastic element. When the extrusion bar moves away from a hemisphere, the elastic force of the elastic element pushes the circular plate and hemisphere back to their original positions. As a result, the moving column drives the striking head to move back and forth. The striking head repeatedly strikes the side of the filter plate, causing the filter plate to vibrate and dislodging the filtered potassium carbonate. The potassium carbonate will not clog the filter plate, ensuring the efficiency of the liquid entering the cooling box and electrolytic cell from the filter plate, and further improving the efficiency of hydrogen production.

[0023] As the hemisphere and circular plate reciprocate, they drive the L-shaped strip and the moving sleeve to reciprocate as well. The moving sleeve drives the support rod to reciprocate, and the other end of the support rod pushes the hinge block two and the striking rod to rotate in an arc. The striking rod drives the striking head two to rotate in an arc, and the striking head two reciprocates by striking the inner wall of the filter hole, causing the fixed plate to vibrate. The fixed plate drives multiple filter plates to vibrate, and the vibration of the filter plates shakes off the potassium carbonate, preventing clogging of the filter plates. This ensures the efficiency of liquid entering the cooling box and electrolytic cell from the filter plates, further improving the efficiency of hydrogen production. Attached Figure Description

[0024] Figure 1This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the cooling box of the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the liquid outlet pipe of the present invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the fan blade of the present invention;

[0028] Figure 5 This is an exploded view of the three-dimensional structure of the rotating bar of the present invention;

[0029] Figure 6 This is a schematic cross-sectional view of the three-dimensional structure of the fixing plate of the present invention;

[0030] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0031] Figure 8 This is a three-dimensional structural diagram of the striking rod of the present invention;

[0032] Figure 9 This is an exploded view of the three-dimensional structure of the movable sleeve of the present invention.

[0033] In the picture:

[0034] 1. Support frame; 101. Electrolytic cell; 102. Gas outlet pipe; 103. Liquid outlet pipe; 104. Liquid inlet pipe; 105. Connecting pipe; 106. Cooling tank; 107. Circulating pump; 108. Pipeline;

[0035] 2. Filtration mechanism; 201. Fixed plate; 202. Filter hole; 203. Filter plate; 204. Rotating shaft; 205. Fan blade; 206. Rotating bar; 207. Scraper bar; 208. Brush bristles; 209. Collection hole; 210. Collection frame; 211. Sealing door;

[0036] 3. Vibration mechanism; 301. Fixed tube; 302. Fixed strip; 303. Moving column; 304. Striking head one; 305. Circular plate; 306. Hemisphere; 307. Elastic element; 308. L-shaped strip; 309. Moving sleeve; 310. Fixed sleeve; 311. Limiting groove; 312. Limiting strip; 313. Fixed block; 314. Rotating plate; 315. Extrusion strip;

[0037] 4. Striking mechanism; 401. Hinge block one; 402. Striking rod; 403. Striking head two; 404. Hinge block two; 405. Support rod. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0040] like Figures 1-9 As shown, this application provides a circulating filtration device for water electrolysis, including: a support frame 1, an electrolytic cell 101 and a cooling tank 106 mounted on the top surface of the support frame 1, an outlet pipe 102 and a liquid outlet pipe 103 and an inlet pipe 104 mounted at both ends of the electrolytic cell 101, one end of the outlet pipe 103 being connected to the cooling tank 106 via a pipe 108, a connecting pipe 105 being mounted on the outer wall of the inlet pipe 104, one end of the inlet pipe 104 being connected to the cooling tank 106 via a circulating pump 107, and the bottom surface of the circulating pump 107 being fixedly connected to the side of the cooling tank 106 via a mounting bracket, and further including:

[0041] Filtering mechanism 2 is installed inside pipe 108. Filtering mechanism 2 includes a fixed plate 201 fixedly installed on the inner wall of pipe 108. A filter hole 202 is opened through the side of the fixed plate 201. A filter plate 203 is fixedly installed on the inner wall of the filter hole 202. A rotating shaft 204 is rotatably installed through the side of the fixed plate 201 via a bearing seat. Filtering mechanism 2 is used to filter liquid.

[0042] Specifically, such as Figures 1-9 As shown, multiple filter holes 202 are provided. The side of the filter plate 203 is flush with the side of the fixed plate 201. A fan blade 205 is fixedly installed on the outer wall of one end of the rotating shaft 204, and a rotating bar 206 is fixedly installed on the outer wall of the other end of the rotating shaft 204.

[0043] In this embodiment: when liquid is drawn from the pipe 108 by the fan blade 205, the flow of liquid drives the fan blade 205 to rotate, and the fan blade 205 drives the rotating shaft 204 to rotate.

[0044] Specifically, such as Figures 1-9 As shown, a scraper 207 and multiple brush bristles 208 are fixedly installed on the side of the rotating bar 206. One end of the multiple brush bristles 208 and the side of the scraper 207 are slidably connected to the side of the fixed plate 201 and the side of the filter plate 203.

[0045] In this embodiment: the brush bristles 208 and the scraper 207 are used to remove potassium carbonate from the side of the filter plate 203, and the scraper 207 performs secondary scraping.

[0046] Specifically, such as Figures 1-9 As shown, a collection hole 209 is provided through the lower outer wall of the pipe 108. The inner wall of one side of the collection hole 209 is flush with the side of the fixing plate 201. A collection frame 210 is fixedly installed on the lower outer wall of the pipe 108, and a sealing door 211 is installed on the bottom surface of the collection frame 210.

[0047] In this embodiment, the removed potassium carbonate is collected through the collection box 210 and the sealing door 211, which facilitates subsequent cleaning.

[0048] Vibration mechanism 3 is installed inside pipe 108. Vibration mechanism 3 includes fixed pipe 301 located inside filter hole 202. Fixed strip 302 is fixedly installed on the outer wall of fixed pipe 301. Movable sleeve 309 is slidably installed on the outer wall of fixed pipe 301. A striking head 304 is provided on one side of fixed pipe 301. Vibration mechanism 3 is used to strike filter plate 203.

[0049] Specifically, such as Figures 1-9 As shown, multiple fixing strips 302 are provided, and the other end of the multiple fixing strips 302 is fixedly connected to the inner wall of the filter hole 202. A movable column 303 is slidably installed on the inner wall of the fixing tube 301. One end of the movable column 303 is fixedly connected to the outer wall of the striking head 304. The outer wall of the striking head 304 is movably connected to the side of the filter plate 203.

[0050] In this embodiment: the filter plate 203 is struck by the set tapping head 304, causing the filter plate 203 to vibrate.

[0051] Specifically, such as Figures 1-9 As shown, a circular plate 305 is fixedly installed at the other end of the movable column 303, a hemisphere 306 is fixedly installed on the side of the circular plate 305, an L-shaped strip 308 is fixedly installed on the outer wall of the circular plate 305, and the other end of the L-shaped strip 308 is fixedly connected to the side of the movable sleeve 309.

[0052] In this embodiment: the movable sleeve 309 limits the L-shaped strip 308 and the circular plate 305, making the circular plate 305 and the hemisphere 306 move more stably.

[0053] Specifically, such as Figures 1-9 As shown, a rotating plate 314 is fixedly installed on the outer wall of the rotating shaft 204, and an extrusion strip 315 is fixedly installed on the side of the rotating plate 314. The side of the extrusion strip 315 is slidably connected to the outer wall of the hemisphere 306. An elastic element 307 is slidably installed on the outer wall of the moving column 303. The two ends of the elastic element 307 are fixedly connected to the side of the fixed tube 301 and the side of the circular plate 305, respectively.

[0054] In this embodiment: the hemisphere 306 is squeezed and pushed by the extrusion bar 315, and the elastic element 307 applies elastic force to the circular plate 305.

[0055] Specifically, such as Figures 1-9 As shown, a fixing sleeve 310 is fixedly installed on the outer wall of the fixing tube 301. Multiple limiting strips 312 are fixedly installed on the side of the fixing sleeve 310. The side of the limiting strip 312 is fixedly connected to the outer wall of the fixing tube 301. A fixing block 313 is fixedly installed on the other side of the limiting strip 312. Multiple limiting grooves 311 are opened on the inner wall of the movable sleeve 309. The inner walls of the multiple limiting grooves 311 are slidably connected to the outer walls of the multiple limiting strips 312 respectively.

[0056] In this embodiment, the movable sleeve 309 is limited by the limiting strip 312 and the limiting groove 311 to prevent the movable sleeve 309 from rotating.

[0057] The striking mechanism 4 is disposed inside the pipe 108. The striking mechanism 4 includes a striking head 403 located inside the filter hole 202. The striking mechanism 4 is used to strike the inner wall of the filter hole 202.

[0058] Specifically, such as Figures 1-9 As shown, multiple fixing bars 302 are respectively fixedly installed with hinge blocks 401 on their sides, and multiple hinge blocks 401 are respectively hinged with striking rods 402 on their inner walls. Multiple striking heads 403 are provided, and multiple striking rods 402 are respectively fixedly connected to the outer walls of multiple striking heads 403. The outer walls of striking heads 403 are movably connected to the inner walls of filter holes 202.

[0059] In this embodiment: the inner wall of the filter hole 202 is struck by the second striking head 403, causing the fixing plate 201 and the filter plate 203 to vibrate.

[0060] Specifically, such as Figures 1-9 As shown, multiple striking rods 402 have hinge blocks 404 fixedly installed on their outer walls, and multiple hinge blocks 404 have support rods 405 hinged to their inner walls. The other end of the multiple support rods 405 is hinged to the outer wall of the movable sleeve 309.

[0061] In this embodiment: when the movable sleeve 309 moves, it drives the support rod 405 to move, and the support rod 405 drives the hinge block 404 and the striking rod 402 to rotate.

[0062] Specifically, the solution is as follows: When the electrolyzer 101 produces hydrogen through water electrolysis, the circulation pump 107 is turned on. The circulation pump 107 draws liquid from the inside of the electrolyzer 101 through the cooling tank 106, the pipe 108, and the outlet pipe 103, and discharges it back into the electrolyzer 101 through the inlet pipe 104. The cooling tank 106 cools the liquid. The water circulation in the electrolyzer 101 prevents stagnant bubbles from forming on the electrode surface, thus avoiding contact between the electrode and the liquid. When the liquid passes through the pipe 108, it is filtered by the filter plate 203 to remove potassium carbonate. Simultaneously, the liquid flow drives the fan blades 205 to rotate. Leaf 205 drives the rotating shaft 204 and rotating bar 206 to rotate. The rotating bar 206 drives the scraper 207 and brush 208 to rotate. The brush 208 and scraper 207 remove the potassium carbonate filtered from the side of the filter plate 203, preventing the potassium carbonate from clogging the filter plate 203 and improving the efficiency of the liquid entering the cooling box 106 and then the electrolytic cell 101 from the filter plate 203. When the rotating shaft 204 rotates, it drives the rotating plate 314 and extrusion bar 315 to rotate. The extrusion bar 315 pushes multiple hemispheres 306 to move in sequence. The hemispheres 306 drive the circular plate 305 and the moving column 303 to move. 5. During movement, the elastic element 307 is compressed. When the compression strip 315 moves away from one hemisphere 306, the elastic force of the elastic element 307 pushes the circular plate 305 and the hemisphere 306 back to their original positions. This causes the moving column 303 to drive the striking head 304 to reciprocate. The striking head 304 reciprocates by striking the side of the filter plate 203, causing it to vibrate and dislodge the filtered potassium carbonate. The potassium carbonate will not clog the filter plate 203. As the hemisphere 306 and the circular plate 305 reciprocate, they drive the L-shaped strip 308 and the moving sleeve 309 to reciprocate. The moving sleeve 309 drives the support... The rod 405 moves back and forth, and the other end of the support rod 405 pushes the hinge block 404 and the striking rod 402 to rotate in an arc. The striking rod 402 drives the striking head 403 to rotate in an arc. The striking head 403 reciprocates and strikes the inner wall of the filter hole 202, causing the fixed plate 201 to vibrate. The fixed plate 201 drives multiple filter plates 203 to vibrate. The vibration of the filter plates 203 shakes off the potassium carbonate, which will not cause blockage of the filter plates 203. This ensures the efficiency of liquid entering the cooling box 106 and the electrolysis cell 101 from the filter plates 203, and further improves the efficiency of hydrogen production.

[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0064] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A circulating filtration device for water electrolysis, comprising: A support frame (1) is provided, on the top surface of which an electrolytic cell (101) and a cooling tank (106) are mounted. An outlet pipe (102), a liquid outlet pipe (103), and a liquid inlet pipe (104) are mounted at both ends of the electrolytic cell (101). One end of the liquid outlet pipe (103) is connected to the cooling tank (106) via a pipe (108). A connecting pipe (105) is mounted on the outer wall of the liquid inlet pipe (104). One end of the liquid inlet pipe (104) is connected to the cooling tank (106) via a circulating pump (107). The bottom surface of the circulating pump (107) is fixedly connected to the side of the cooling tank (106) via a mounting bracket. The support frame (1) is characterized by further comprising: A filter mechanism (2) is provided inside a pipe (108). The filter mechanism (2) includes a fixed plate (201) fixedly installed on the inner wall of the pipe (108). A filter hole (202) is provided through the side of the fixed plate (201). A filter plate (203) is fixedly installed on the inner wall of the filter hole (202). A rotating shaft (204) is rotatably installed through the side of the fixed plate (201) via a bearing seat. The filter mechanism (2) is used for filtering liquids. Vibration mechanism (3), the vibration mechanism (3) is set inside the pipe (108), the vibration mechanism (3) includes a fixed tube (301) located inside the filter hole (202), a fixed strip (302) is fixedly installed on the outer wall of the fixed tube (301), a movable sleeve (309) is slidably installed on the outer wall of the fixed tube (301), and a striking head (304) is provided on one side of the fixed tube (301). The vibration mechanism (3) is used to strike the filter plate (203). A striking mechanism (4) is provided inside the pipe (108). The striking mechanism (4) includes a striking head (403) located inside the filter hole (202). The striking mechanism (4) is used to strike the inner wall of the filter hole (202).

2. The circulating filtration device for water electrolysis according to claim 1, characterized in that, The filter holes (202) are provided in multiple ways. The side of the filter plate (203) is flush with the side of the fixed plate (201). A fan blade (205) is fixedly installed on the outer wall of one end of the rotating shaft (204), and a rotating bar (206) is fixedly installed on the outer wall of the other end of the rotating shaft (204).

3. The circulating filtration device for water electrolysis according to claim 2, characterized in that, The rotating bar (206) is fixedly mounted with a scraper (207) and a plurality of bristles (208). One end of the plurality of bristles (208) and the side of the scraper (207) are slidably connected to the side of the fixed plate (201) and the side of the filter plate (203).

4. A circulating filtration device for water electrolysis according to claim 3, characterized in that, A collection hole (209) is provided through the lower outer wall of the pipe (108). The inner wall of one side of the collection hole (209) is flush with the side of the fixing plate (201). A collection frame (210) is fixedly installed on the lower outer wall of the pipe (108). A sealing door (211) is installed on the bottom surface of the collection frame (210).

5. A circulating filtration device for water electrolysis according to claim 4, characterized in that, Multiple fixing strips (302) are provided, and the other end of the multiple fixing strips (302) is fixedly connected to the inner wall of the filter hole (202). A movable column (303) is slidably installed on the inner wall of the fixing tube (301). One end of the movable column (303) is fixedly connected to the outer wall of the first striking head (304). The outer wall of the first striking head (304) is movably connected to the side of the filter plate (203).

6. A circulating filtration device for water electrolysis according to claim 5, characterized in that, A circular plate (305) is fixedly installed at the other end of the movable column (303). A hemisphere (306) is fixedly installed on the side of the circular plate (305). An L-shaped strip (308) is fixedly installed on the outer wall of the circular plate (305). The other end of the L-shaped strip (308) is fixedly connected to the side of the movable sleeve (309).

7. A circulating filtration device for water electrolysis according to claim 6, characterized in that, A rotating plate (314) is fixedly installed on the outer wall of the rotating shaft (204). An extrusion strip (315) is fixedly installed on the side of the rotating plate (314). The side of the extrusion strip (315) is slidably connected to the outer wall of the hemisphere (306). An elastic element (307) is slidably installed on the outer wall of the moving column (303). The two ends of the elastic element (307) are fixedly connected to the side of the fixed tube (301) and the side of the circular plate (305), respectively.

8. A circulating filtration device for water electrolysis according to claim 7, characterized in that, A fixing sleeve (310) is fixedly installed on the outer wall of the fixing tube (301). A plurality of limiting strips (312) are fixedly installed on the side of the fixing sleeve (310). The side of the limiting strip (312) is fixedly connected to the outer wall of the fixing tube (301). A fixing block (313) is fixedly installed on the other side of the limiting strip (312). A plurality of limiting grooves (311) are opened on the inner wall of the movable sleeve (309). The inner walls of the plurality of limiting grooves (311) are slidably connected to the outer walls of the plurality of limiting strips (312).

9. A circulating filtration device for water electrolysis according to claim 8, characterized in that, A hinge block (401) is fixedly installed on the side of each of the multiple fixing bars (302). A striking rod (402) is hinged to the inner wall of each of the multiple hinge blocks (401). Multiple striking heads (403) are provided. The multiple striking rods (402) are fixedly connected to the outer wall of the multiple striking heads (403). The outer wall of the striking heads (403) is movably connected to the inner wall of the filter hole (202).

10. A circulating filtration device for water electrolysis according to claim 9, characterized in that, Each of the multiple striking rods (402) has a hinge block two (404) fixedly installed on its outer wall, and a support rod (405) is hinged to the inner wall of each of the multiple hinge blocks two (404). The other end of each of the multiple support rods (405) is hinged to the outer wall of the movable sleeve (309).

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