CN220760423U - Membrane electrode cleaning electrolysis equipment - Google Patents
Membrane electrode cleaning electrolysis equipment Download PDFInfo
- Publication number
- CN220760423U CN220760423U CN202322216820.1U CN202322216820U CN220760423U CN 220760423 U CN220760423 U CN 220760423U CN 202322216820 U CN202322216820 U CN 202322216820U CN 220760423 U CN220760423 U CN 220760423U
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- cleaning
- membrane electrode
- electrolysis
- connecting rod
- fixedly connected
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- 238000004140 cleaning Methods 0.000 title claims abstract description 94
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 69
- 239000012528 membrane Substances 0.000 title claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims description 37
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses membrane electrode cleaning electrolysis equipment which comprises a shell, a control panel, an electrolysis cleaning assembly and a cleaning electrolysis box, wherein the front side of the shell is fixedly arranged with the rear side of the control panel, and the control panel is embedded into the front side of the shell. The utility model has the advantages of being convenient for cleaning the inside of the cleaning electrolytic tank and taking out the electric filtered water of the membrane electrode by arranging the rotating motor, the unidirectional screw, the moving block, the first connecting rod, the second connecting rod, the third connecting rod, the membrane electrode placing rack and the cleaning brush for use, and solves the problems that the inner wall of the cleaning electrolytic tank can adsorb some dust and impurities carried by the membrane electrode after the membrane electrode is cleaned by the traditional membrane electrode cleaning electrolytic equipment, so that a user is inconvenient to clean the inner wall of the cleaning electrolytic tank, meanwhile, the cleaning electrolyte in the cleaning electrolytic tank has certain electric quantity after the membrane electrode is electrolytically cleaned, and a certain danger exists when the user takes out the cleaning electrolyte by hand.
Description
Technical Field
The utility model belongs to the technical field of cleaning electrolysis equipment, and particularly relates to membrane electrode cleaning electrolysis equipment.
Background
The membrane electrode is the core component of the hydrogen fuel cell and is the fundamental source of the power of the fuel cell, and the cost of the membrane electrode accounts for 70 percent of the fuel cell stack and accounts for 35 percent of the power system of the fuel cell. In the process of using and producing the membrane electrode for a long time, the surface of the membrane electrode can adsorb a lot of dust impurities, and the membrane electrode needs to be cleaned, so that the cleaning electrolysis equipment is needed.
The existing membrane electrode cleaning electrolysis equipment refers to an electrolysis ultrasonic cleaner and consists of a stainless steel tank body, an electrolysis cleaning component (an ultrasonic system, an electrolysis circuit system and electrodes), a tray, a filtration and circulation system, a timing device and a panel electrical switch device.
However, after the membrane electrode is cleaned, the inner wall of the cleaning electrolysis box can absorb some dust and impurities carried by some membrane electrodes, so that a user can not conveniently clean the inner wall of the cleaning electrolysis box, and meanwhile, after the membrane electrode is cleaned by electrolysis, cleaning electrolyte in the cleaning electrolysis box has certain electric quantity, and when the user takes out the cleaning electrolyte by hand, the cleaning electrolysis box has certain dangerous problem.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides the membrane electrode cleaning electrolysis equipment which has the advantages of being convenient for cleaning the inside of the cleaning electrolysis box and taking out the membrane electrode by using electric filtered water, and solves the problems that the inner wall of the cleaning electrolysis box can adsorb some dust and impurities carried by some membrane electrodes after the membrane electrodes are cleaned, so that a user is inconvenient to clean the inner wall of the cleaning electrolysis box, and meanwhile, after the membrane electrodes are cleaned by electrolysis, the cleaning electrolyte in the cleaning electrolysis box has certain electric quantity and a user can take out the electrolyte by hand, so that the cleaning electrolysis equipment has certain danger.
The utility model discloses membrane electrode cleaning electrolysis equipment which comprises a shell, a control panel, an electrolysis cleaning component and a cleaning electrolysis box, wherein the front side of the shell is fixedly arranged with the rear side of the control panel, the control panel is embedded into the front side of the shell, the inner wall of the shell is fixedly connected with the surface of the cleaning electrolysis box, the electrolysis cleaning component is fixedly arranged at the bottom of the interior of the cleaning electrolysis box, a separation plate is arranged in the shell, the separation plate is fixedly connected with the inner wall of the shell, the left side of the separation plate is fixedly connected with the right side of the cleaning electrolysis box, the right side of the separation plate is fixedly connected with a transmission box, the bottom of the transmission box is provided with a rotating motor, the output end of the rotating motor is fixedly provided with a one-way screw, the top of the one-way screw penetrates through the bottom of the transmission box and extends to the top of the transmission box, the surface of the one-way screw is in threaded connection with a moving block, the left side of the moving block is fixedly connected with a first connecting rod, the left side of the first connecting rod is fixedly connected with a second connecting rod, the top of the second connecting rod is fixedly connected with a third connecting rod, the top of the second connecting rod is fixedly connected with a connecting rod, the left side of the third connecting rod is fixedly connected with the inner wall of the cleaning brush, the bottom of the electrode is fixedly connected with the connecting rods, and the cleaning brush is fixedly connected with the inner walls of the two connecting plates, and the cleaning brush is fixedly connected with the surfaces of the inner wall.
As the preferable one of the utility model, the top of the unidirectional screw is sleeved with a limit bearing, and the outer surface of the limit bearing is fixedly connected with the inner wall of the transmission case.
As the preferable right side of the moving block is fixedly connected with the limit sliding block, the limit sliding block is sleeved and connected with the limit sliding rod, two ends of the limit sliding rod penetrate through the limit sliding block and are fixedly connected with the inner wall of the transmission case, the inner wall of the transmission case is provided with the limit sliding groove matched with the limit sliding block, and the limit sliding rod is positioned in the limit sliding groove.
As the preferable mode of the utility model, the left side of the rotating motor is fixedly connected with a shock absorber, the left side of the shock absorber is fixedly connected with the right side of the partition plate, and the bottom of the transmission case is provided with a through hole matched with the output end of the rotating motor and the unidirectional screw rod.
As the preferable mode of the utility model, the inner walls of the transmission case, the partition plate and the cleaning electrolysis case are provided with openings, and the openings are matched with the first connecting rod for use.
As the preferable mode of the utility model, the bottom of the left side of the second connecting rod is fixedly connected with an auxiliary sliding block, and the inner wall of the connecting plate is provided with an auxiliary sliding groove matched with the auxiliary sliding block.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model has the advantages of being convenient for cleaning the inside of the cleaning electrolytic tank and taking out the electric filtered water of the membrane electrode by arranging the rotating motor, the unidirectional screw, the moving block, the first connecting rod, the second connecting rod, the third connecting rod, the membrane electrode placing rack and the cleaning brush for use, and solves the problems that the inner wall of the cleaning electrolytic tank can adsorb some dust and impurities carried by the membrane electrode after the membrane electrode is cleaned by the traditional membrane electrode cleaning electrolytic equipment, so that a user is inconvenient to clean the inner wall of the cleaning electrolytic tank, meanwhile, the cleaning electrolyte in the cleaning electrolytic tank has certain electric quantity after the membrane electrode is electrolytically cleaned, and a certain danger exists when the user takes out the cleaning electrolyte by hand.
2. According to the utility model, the limit bearing is arranged, so that the unidirectional screw rod can be limited during rotation, the unidirectional screw rod is effectively prevented from shaking during rotation, and the contact area between the unidirectional screw rod and the transmission case is reduced.
3. According to the utility model, the limiting sliding block, the limiting sliding rod and the limiting sliding groove are arranged, so that the moving block can move more easily along with the rotation of the unidirectional screw, the blocking phenomenon of the moving block during the movement is avoided, the contact area of the moving block and the transmission case is reduced, and the moving block is horizontally limited.
4. According to the utility model, the vibration absorber and the through hole are arranged, so that vibration generated by running of the rotating motor can be damped by the vibration absorber, the influence on equipment operation is avoided, the through hole can enable the unidirectional screw to pass through, and the contact area of the unidirectional screw and the transmission case is reduced.
5. According to the utility model, the opening is arranged, so that the first connecting rod can move along with the movement of the moving block, the first connecting rod has a movable space, and the contact area of the first connecting rod with the transmission case, the partition plate and the connecting plate is reduced.
6. According to the utility model, the auxiliary sliding block and the auxiliary sliding groove are arranged, so that the second connecting rod can move more easily along with the rotation of the first connecting rod, the phenomenon that the second connecting rod is blocked during the movement is avoided, the contact area between the second connecting rod and the connecting plate is reduced, and the second connecting rod is horizontally limited.
Drawings
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present utility model;
FIG. 2 is a front cross-sectional view of an embodiment of the present utility model providing a membrane electrode cleaning electrolysis apparatus;
FIG. 3 is a partial enlarged view of FIG. 2 at A provided by an embodiment of the present utility model;
FIG. 4 is a partial enlarged view of embodiment of the present utility model providing the view at B in FIG. 2;
FIG. 5 is a top view of an embodiment of the utility model providing a membrane electrode cleaning electrolysis apparatus.
In the figure: 1. a housing; 2. a control panel; 3. an electrolytic cleaning assembly; 4. cleaning an electrolytic tank; 5. a partition plate; 6. a transmission case; 7. a rotating motor; 8. a unidirectional screw; 9. a moving block; 10. a first connecting rod; 11. a second connecting rod; 12. a membrane electrode placing rack; 13. cleaning brushes; 14. a connecting plate; 15. a limit bearing; 16. a limit sliding block; 17. a limit slide bar; 18. limiting sliding grooves; 19. a damper; 20. an opening; 21. an auxiliary slide block; 22. an auxiliary chute; 23. a third connecting rod; 24. and a through hole.
Detailed Description
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the membrane electrode cleaning electrolysis device provided by the embodiment of the utility model comprises a shell 1, a control panel 2, an electrolysis cleaning assembly 3 and a cleaning electrolysis box 4, wherein the front side of the shell 1 is fixedly installed with the rear side of the control panel 2, the control panel 2 is embedded into the front side of the shell 1, the inner wall of the shell 1 is fixedly connected with the surface of the cleaning electrolysis box 4, the electrolysis cleaning assembly 3 is fixedly installed at the bottom of the interior of the cleaning electrolysis box 4, a separation plate 5 is arranged in the shell 1, the separation plate 5 is fixedly connected with the inner wall of the shell 1, the left side of the separation plate 5 is fixedly connected with the right side of the cleaning electrolysis box 4, the right side of the separation plate 5 is fixedly connected with a transmission box 6, the bottom of the transmission box 6 is provided with a rotating motor 7, the output end of the rotating motor 7 is fixedly provided with a unidirectional screw 8, the top of the unidirectional screw 8 penetrates through the bottom of the transmission box 6 and extends to the top of the transmission box 6, the surface of the unidirectional screw 8 is in threaded connection with a moving block 9, the left side of the moving block 9 is fixedly connected with a first connecting rod 10, the left side of the first connecting rod 11 is fixedly connected with a second connecting rod 11, the top of the second connecting rod 11 is fixedly connected with the top of the second connecting rod 11, the third connecting rod 11 is fixedly connected with the inner wall of the connecting rod 23 is fixedly connected with the inner wall of the electrode frame 13, the cleaning brush frame 13 is fixedly connected with the inner wall of the electrode frame 13, and the cleaning electrode frame 13 is fixedly connected with the two side of the electrode frame 13 is fixedly connected with the bottom connecting rod 13, and the electrode frame 13 is fixedly connected with the bottom connecting frame 13 is connected with the bottom connecting the bottom electrode frame 13.
Referring to fig. 2, a limit bearing 15 is sleeved on the top of the unidirectional screw 8, and the outer surface of the limit bearing 15 is fixedly connected with the inner wall of the transmission case 6.
The scheme is adopted: through setting up spacing bearing 15, can make unidirectional screw 8 carry out spacingly when rotating, avoid unidirectional screw 8 to take place to rock when rotating effectively, reduced unidirectional screw 8 and transmission case 6's area of contact, reduced unidirectional screw 8's wearing and tearing, prolonged unidirectional screw 8's life, avoid causing the influence to unidirectional screw 8's rotation.
Referring to fig. 2 and 3, a limit slide block 16 is fixedly connected to the right side of the moving block 9, a limit slide bar 17 is sleeved and connected to the inside of the limit slide block 16, two ends of the limit slide bar 17 penetrate through the limit slide block 16 and are fixedly connected with the inner wall of the transmission case 6, a limit slide groove 18 matched with the limit slide block 16 for use is formed in the inner wall of the transmission case 6, and the limit slide bar 17 is located in the limit slide groove 18.
The scheme is adopted: through setting up spacing slider 16, spacing slide bar 17 and spacing spout 18, can make movable block 9 move more easily along with unidirectional screw 8 rotates, avoid movable block 9 to appear the card phenomenon of dying when moving, reduced movable block 9 and transmission case 6's area of contact, also carried out the level to movable block 9 spacing, reduced movable block 9's wearing and tearing, prolonged movable block 9's life, avoid causing the influence to movable block 9's removal.
Referring to fig. 3, a damper 19 is fixedly connected to the left side of the rotary motor 7, the left side of the damper 19 is fixedly connected to the right side of the partition plate 5, and a through hole 24 matched with the output end of the rotary motor 7 and the unidirectional screw 8 is formed in the bottom of the transmission case 6.
The scheme is adopted: through setting up bumper shock absorber 19 and through-hole 24, bumper shock absorber 19 can make the vibrations that produce rotation motor 7 at the operation shock attenuation, avoids causing the influence to equipment work, and through-hole 24 can make unidirectional screw 8 and rotation motor 7's output pass through, reduces unidirectional screw 8 and transmission case 6's area of contact, has reduced rotation motor 7's harm, has prolonged rotation motor 7's life.
Referring to fig. 3, openings 20 are formed in the inner walls of the transmission case 6, the partition plate 5 and the cleaning electrolysis case 4, and the openings 20 are matched with the first connecting rod 10.
The scheme is adopted: through setting up opening 20, can make head rod 10 remove when can moving along with movable block 9, make head rod 10 have the activity space, reduced head rod 10 and transmission case 6, division board 5 and connecting plate 14's area of contact, reduced head rod 10's wearing and tearing, prolonged head rod 10's life, avoid causing the influence to head rod 10's removal.
Referring to fig. 4, an auxiliary slide block 21 is fixedly connected to the bottom of the left side of the second connecting rod 11, and an auxiliary slide groove 22 matched with the auxiliary slide block 21 for use is formed in the inner wall of the connecting plate 14.
The scheme is adopted: through setting up supplementary slider 21 and supplementary spout 22, can make second connecting rod 11 move more easily when rotating along with head rod 10, avoid second connecting rod 11 to appear the card phenomenon of dying when moving, reduced the area of contact of second connecting rod 11 and connecting plate 14, also carried out the level to second connecting rod 11 spacing, reduced second connecting rod 11, wearing and tearing have prolonged second connecting rod 11's life, avoid causing the influence to second connecting rod 11's removal.
The working principle of the utility model is as follows:
when the membrane electrode cleaning device is used, a user places a membrane electrode in a membrane electrode placing frame 12, a rotating motor 7 is started to drive a one-way screw 8 to rotate, the one-way screw 8 drives a moving block 9 to move, the moving block 9 drives a first connecting rod 10 to move, the first connecting rod 10 drives a second connecting rod 11 to move downwards, the second connecting rod 11 drives a third connecting rod 23 to move downwards, the third connecting rod 23 drives the membrane electrode placing frame 12 to move downwards, the membrane electrode cleaning device enters the cleaning electrolysis tank 4 to clean and electrolyze, a cleaning brush 13 is driven to clean the inner wall of the cleaning electrolysis tank 4, an electrolytic cleaning assembly 3 works to clean the membrane electrode, after the cleaning, the user makes the rotating motor 7 reverse, the rotating motor 7 drives a moving block 9 to move upwards, the moving block 9 drives a first connecting rod 10 to move upwards, the first connecting rod 10 drives a second connecting rod 11 to move upwards, the second connecting rod 11 drives the third connecting rod 23 to move upwards, the third connecting rod 23 drives the membrane electrode placing frame 12 to move upwards, and therefore the cleaning brush 13 is driven to move upwards, the inner wall of the cleaning electrolysis tank 4 is cleaned, and the membrane electrode after the cleaning is cleaned, and the membrane electrode is convenient to clean and the membrane electrode is taken out of the inside the electric cleaning tank.
To sum up: this membrane electrode washs electrolysis equipment, through setting up casing 1, control panel 2, the electrolysis washs subassembly 3, wash the electrolysis case 4, division board 5, transmission case 6, rotating motor 7, one-way screw rod 8, movable block 9, head rod 10, second connecting rod 11, membrane electrode rack 12, cleaning brush 13, connecting plate 14, spacing bearing 15, spacing slider 16, spacing slide bar 17, spacing spout 18, shock absorber 19, opening 20, auxiliary slide block 21, auxiliary slide groove 22, third connecting rod 23 and through-hole 24's cooperation is used, the membrane electrode washs electrolysis equipment after the clearance to the membrane electrode, the inner wall of wasing the electrolysis case can adsorb some dust and impurity that some membrane electrode had, be convenient for the user to clear up the electrolysis case inner wall of wasing, after carrying out the electrolysis to the membrane electrode washs simultaneously, wash the electrolyte in the electrolysis case has certain electric quantity, when the user takes out with the hand, there is certain dangerous problem.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a membrane electrode washs electrolysis equipment, includes casing (1), control panel (2), electrolysis cleaning module (3) and washs electrolysis case (4), its characterized in that: the utility model discloses a cleaning device, including casing (1), control panel (2), electrolysis case (4) and connecting rod (10), casing (1) front side and control panel (2) rear side fixed mounting, control panel (2) imbeds casing (1) front side, the inner wall of casing (1) and the fixed surface connection who washs electrolysis case (4), the inside bottom fixed mounting who washs electrolysis case (4) has electrolysis cleaning module (3), casing (1) inside is provided with division board (5), division board (5) and casing (1) inner wall fixed connection, division board (5) left side and washing electrolysis case (4) right side fixed connection, division board (5) right side fixed connection has transmission case (6), the bottom of transmission case (6) is provided with rotation motor (7), the output fixed surface connection who rotates motor (7) has unidirectional screw (8), the top of unidirectional screw (8) runs through the bottom of transmission case (6) and extends to the top of transmission case (6), the surface connection of unidirectional screw (8) has movable block (9), the fixed surface connection of movable block (9) and connecting rod (10) left side fixed connection has connecting rod (11), the membrane electrode cleaning device is characterized in that a membrane electrode placing frame (12) is fixedly connected to the left bottom of the third connecting rod (23), two cleaning brushes (13) are fixedly connected to the periphery of the membrane electrode placing frame (12), the cleaning brushes (13) are in contact with the inner wall of the cleaning electrolysis box (4), a connecting plate (14) is sleeved on the surface of the second connecting rod (11), and the connecting plate (14) is fixedly connected with the right side of the inner wall of the cleaning electrolysis box (4).
2. A membrane electrode cleaning electrolysis apparatus according to claim 1, wherein: the top of the unidirectional screw (8) is sleeved and connected with a limit bearing (15), and the outer surface of the limit bearing (15) is fixedly connected with the inner wall of the transmission case (6).
3. A membrane electrode cleaning electrolysis apparatus according to claim 1, wherein: limiting slide blocks (16) are fixedly connected to the right sides of the moving blocks (9), limiting slide rods (17) are sleeved and connected to the inside of the limiting slide blocks (16), two ends of each limiting slide rod (17) penetrate through the limiting slide blocks (16) and are fixedly connected with the inner wall of the transmission case (6), limiting slide grooves (18) matched with the limiting slide blocks (16) in use are formed in the inner wall of the transmission case (6), and the limiting slide rods (17) are located in the limiting slide grooves (18).
4. A membrane electrode cleaning electrolysis apparatus according to claim 1, wherein: the left side fixedly connected with bumper shock absorber (19) of rotating motor (7), the left side of bumper shock absorber (19) and the right side fixed connection of division board (5), through-hole (24) with rotating motor (7) output and unidirectional screw (8) cooperation use have been seted up to the bottom of transmission case (6).
5. A membrane electrode cleaning electrolysis apparatus according to claim 1, wherein: the inner walls of the transmission case (6), the partition plate (5) and the cleaning electrolysis case (4) are provided with openings (20), and the openings (20) are matched with the first connecting rod (10).
6. A membrane electrode cleaning electrolysis apparatus according to claim 1, wherein: the bottom of second connecting rod (11) left side is fixedly connected with auxiliary slide block (21), auxiliary chute (22) that use with auxiliary slide block (21) cooperation is seted up to the inner wall of connecting plate (14).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202322216820.1U CN220760423U (en) | 2023-08-17 | 2023-08-17 | Membrane electrode cleaning electrolysis equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322216820.1U CN220760423U (en) | 2023-08-17 | 2023-08-17 | Membrane electrode cleaning electrolysis equipment |
Publications (1)
Publication Number | Publication Date |
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CN220760423U true CN220760423U (en) | 2024-04-12 |
Family
ID=90597996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202322216820.1U Active CN220760423U (en) | 2023-08-17 | 2023-08-17 | Membrane electrode cleaning electrolysis equipment |
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CN (1) | CN220760423U (en) |
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2023
- 2023-08-17 CN CN202322216820.1U patent/CN220760423U/en active Active
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