Closed modularized electrolytic cell for producing hydrogen by electrolyzing water

Abstract

The invention relates to the technical field of water electrolysis hydrogen production, in particular to a closed modular electrolytic cell for water electrolysis hydrogen production, which comprises an electrolytic hydrogen production cell, a partition structure, an electrolysis module and a second lifting structure, the electrolytic hydrogen production tank comprises a tank body and a cover body; the partition structure comprises an ion diaphragm, and the ion diaphragm divides the internal space of the tank body into a cathode chamber and an anode chamber; the electrolysis module comprises a hoisting plate, an electrolysis piece assembly, a plurality of clamping structures and a first lifting structure, the lower end of the hoisting plate abuts against the upper end of the ion diaphragm, the electrolysis piece assembly comprises a plurality of cathode pieces and a plurality of anode pieces, the clamping structures are arranged on the hoisting plate, and the first lifting structure is arranged between the cathode pieces and the anode pieces. The clamping structure clamps the cathode plate and the anode plate on the hoisting plate, and the first lifting structure is used for changing the height of the hoisting plate in the tank body; the second lifting structure is used for opening and closing the tank body and the cover body; according to the invention, the hoisting plate, the electrolytic sheet assembly, the clamping structure and the first lifting structure are arranged, so that the electrolysis efficiency is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen production by water electrolysis, and in particular to a closed modular electrolytic cell for hydrogen production by water electrolysis. Background Art

[0002] Hydrogen production by water electrolysis is a process that produces hydrogen and oxygen by electrolyzing water molecules. In this process, water molecules are decomposed into hydrogen and oxygen under the action of direct current, and they are gathered at the two poles of the electrolytic cell. When water is electrolyzed, the end connected to the positive pole of the power supply (anode) produces oxygen, while the end connected to the negative pole of the power supply (cathode) produces hydrogen. This is because the hydrogen ions in the water molecules are reduced to hydrogen after gaining electrons at the cathode, while the hydroxide ions are oxidized to oxygen and water after losing electrons at the anode.

[0003] An electrolytic cell for producing hydrogen by electrolysis of water disclosed in Chinese patent application CN202210605781.1 has the following working principle: the two ends of the top cover of the hydrogen production cell by electrolysis of water are movably installed corresponding to the hydrogen production cell by electrolysis of water through a pair of lifting mechanisms. When the top cover is lifted, the electrolytic sheet assembly can be pulled out of the hydrogen production cell by electrolysis of water to be exposed. The upper ends of each anode sheet and each cathode sheet are clamped and installed on the lower end of the top cover by a clamping mechanism. At this time, the clamping motor can control the movable clamping plate and the fixed clamping plate to clamp or release the anode sheet or the cathode sheet, so that the electrolytic sheet assembly can be quickly and conveniently disassembled and assembled, thereby facilitating subsequent replacement of loss.

[0004] In the above scheme, the cathode plate and the anode plate are kept in a vertical state under the action of the movable clamping plate and the fixed clamping plate, and the depth of the cathode plate and the anode plate extended into the electrolytic hydrogen production tank is fixed. As the electrolytic hydrogen production continues, the liquid level in the electrolytic hydrogen production tank decreases, and the contact area between the cathode plate and the anode plate and the electrolyte is reduced, which reduces the electrolysis efficiency. Summary of the invention

[0005] In view of the above problems, a closed modular electrolytic cell for producing hydrogen by electrolyzing water is provided. The present invention is provided with a hanging plate, an electrolytic sheet assembly, a clamping structure and a first lifting structure, so as to maintain the efficiency of electrolysis.

[0006] In order to solve the problems of the prior art, the present invention provides a closed modular electrolytic cell for producing hydrogen by electrolysis of water, comprising an electrolytic hydrogen production cell, a partition structure, an electrolytic module and a second lifting structure; the electrolytic hydrogen production cell comprises a cell body and a cover body, the cover body is arranged on the upper end of the cell body; the partition structure is arranged inside the cell body, the partition structure comprises an ion diaphragm, and the ion diaphragm divides the internal space of the cell body into a cathode chamber and an anode chamber; the electrolytic module comprises a hanging plate, an electrolytic sheet assembly, a clamping structure and a first lifting structure, the hanging plate is arranged in parallel at the lower end of the cover body, and the size of the hanging plate is the same as the size of the inner cavity of the cell body, and the lower end of the hanging plate abuts against the upper end of the ion diaphragm The electrolytic sheet assembly includes a plurality of cathode sheets and a plurality of anode sheets, the plurality of cathode sheets are arranged at equal intervals in the cathode chamber, the plurality of anode sheets are arranged at equal intervals in the anode chamber, and the plurality of cathode sheets correspond to the plurality of anode sheets one by one. There are a plurality of clamping structures, the plurality of clamping structures are arranged on a hanging plate, the clamping structures clamp the cathode sheets and the anode sheets on the hanging plate, the first lifting structure is arranged at the upper end of the hanging plate, the first lifting structure is used to change the height of the hanging plate inside the tank body; there are two second lifting structures, the two second lifting structures are respectively arranged at the two ends of the tank body, and the second lifting structures are used to open and close the tank body and the cover body.

[0007] Preferably, the clamping structure includes a mounting plate, a clamping assembly and a hinged structure, the mounting plate is fixed on the lifting plate; the clamping assembly is arranged at the lower end of the mounting plate, the clamping assembly is used to clamp the corresponding cathode sheet or anode sheet, the clamping assembly includes two clamping plates, the two clamping plates are arranged in parallel, and the gap between the two clamping plates is used to accommodate the cathode sheet or anode sheet; the hinged structure is arranged between the mounting plate and the clamping assembly.

[0008] Preferably, the clamping structure further includes a second return spring, and there are four second return springs, which are respectively arranged on four corners of the mounting plate.

[0009] Preferably, the clamping structure further comprises a positioning connecting shaft, and the positioning connecting shaft is arranged between the two clamping plates.

[0010] Preferably, the first lifting structure includes two first moving blocks, two second driving plates, a first linear driving structure and a guide column; the two first moving blocks are arranged at the upper end of the mounting plate; the two second driving plates are symmetrically arranged about the middle of the hanging plate, and the two ends of the second driving plate are respectively hinged to the hanging plate and the first moving blocks; the first linear driving structure is horizontally arranged at the upper ends of the two first moving blocks, and the first linear driving structure is used to drive the two first moving blocks to move closer to or away from each other; the guide column is vertically arranged on one side of the first linear driving structure, one end of the guide column is connected to the hanging plate, and the other end of the guide column passes upward through the cover body.

[0011] Preferably, the electrolysis module further comprises a first guide assembly, wherein the first guide assemblies are provided in two numbers, and the two first guide assemblies are respectively arranged at the bottom of the cathode chamber and the bottom of the anode chamber.

[0012] Preferably, the partition structure also includes a storage bin and a reset structure; the storage bin is arranged at the bottom of the tank body, and the storage bin is connected to the tank body; the reset structure is arranged inside the storage bin, and the reset structure is used to reset the ion membrane stored in the storage bin.

[0013] Preferably, the second lifting structure includes a fixed connecting shaft, a second moving block and a guide lifting assembly; one end of the fixed connecting shaft is connected to one end of the cover body; the middle part of the second moving block is connected to the other end of the fixed connecting shaft; the guide lifting assembly is arranged on one side of the trough body, and the guide lifting assembly is used to limit the moving direction of the second moving block.

[0014] Preferably, the second lifting structure also includes a locking structure, which is arranged on one side of the second moving block, and the locking structure includes a locking block, a connecting plate, a second guide assembly and a third linear drive; the locking block corresponds to the fixed connecting shaft; the middle part of the connecting plate is connected to the locking block; the second guide assembly is arranged on the second moving block, and the second guide assembly is used to limit the moving direction of the locking block; the third linear drive is arranged on one side of the second guide assembly, and the third linear drive is used to push the connecting plate to move along the guiding direction of the second guide assembly.

[0015] Preferably, a cross protrusion is provided at one end of the locking block facing the fixed connection shaft, a cross groove is provided at one end of the fixed connection shaft abutting against the locking block, and the cross protrusion corresponds to the cross groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a lifting plate, an electrolyte sheet assembly, a clamping structure and a first lifting structure. The first lifting structure dynamically adjusts the positions of the cathode sheet and the anode sheet so that they can penetrate into the interior of the tank body as the liquid level of the electrolyte aqueous solution drops, thereby maintaining or increasing the contact area with the electrolyte. In this process, both the cathode sheet and the anode sheet will tilt, so that during the electrolysis process, more surfaces of the electrodes can contact the electrolyte aqueous solution, thereby maintaining the efficiency of the electrolysis.

[0017] 2. The present invention is provided with a mounting plate, a clamping assembly and a hinged structure. The clamping assembly can effectively fix the electrode plate between the two clamping plates to prevent the electrode plate from falling off or shaking during the movement of the lifting plate. At the same time, the hinged structure enables the electrode plate to flexibly adjust its posture when squeezed by the bottom of the slot and maintain a stable contact state, thereby avoiding direct hard contact and squeezing and protecting the integrity and service life of the electrode plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional diagram of a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0019] Figure 2 It is a left view of a closed modular electrolyzer for producing hydrogen by electrolyzing water.

[0020] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle.

[0021] Figure 4 It is a three-dimensional diagram of the electrolysis module in a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0022] Figure 5 It is a three-dimensional diagram of the anode plate and the clamping structure in a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0023] Figure 6 It is a three-dimensional diagram of the anode plate, mounting plate, clamping assembly and hinged structure in a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0024] Figure 7 It is a three-dimensional diagram of the clamping structure in a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0025] Figure 8 The present invention is a three-dimensional diagram of a lifting plate and a first lifting structure in a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0026] Fig. 9 The present invention is a stereoscopic diagram of an electrolytic sheet assembly and a first guide assembly in a closed modular electrolytic cell for producing hydrogen by electrolyzing water.

[0027] Fig.10 It is a three-dimensional diagram of the partition structure in a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0028] Fig.11 It is a three-dimensional diagram of the second lifting structure in a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0029] Fig.12 The present invention is an exploded view of a fixed connecting shaft, a second moving block and a locking structure in a closed modular electrolyzer for producing hydrogen by electrolysis of water.

[0030] The numbers in the figure are: 1. electrolytic hydrogen production tank; 11. tank body; 12. cover body; 2. partition structure; 21. ion diaphragm; 22. mounting frame; 23. storage bin; 24. reset structure; 241. U-shaped plate; 242. first guide crossbar; 243. slider; 244. first drive plate; 245. first reset spring; 3. electrolytic module; 31. hanging plate; 311. first air outlet pipe; 312. second air outlet pipe; 32. electrolytic sheet assembly; 321. cathode sheet; 322. anode sheet; 33. clamping structure; 331. mounting plate; 332. clamping assembly; 3321. clamping plate; 3322. first drive structure; 333. hinge structure; 3331. first plate body; 3332. second plate body; 3333. rotating shaft; 334. second reset spring; 335, positioning connecting shaft; 34, first lifting structure; 341, second driving plate; 342, first moving block; 343, first linear driving structure; 344, guide column; 35, first guide assembly; 351, guide plate; 3511, guide bevel; 352, limit plate; 353, first linear driver; 4, second lifting structure; 41, fixed connecting shaft; 411, cross groove; 42, second moving block; 43, guide lifting assembly; 431, second rectangular frame; 432, guide vertical rod; 433, second linear driver; 44, locking structure; 441, locking block; 4411, cross protrusion; 442, connecting plate; 443, second guide assembly; 4431, mounting frame; 4432, second guide cross bar; 444, third linear driver. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figures 1 to 12As shown: a closed modular electrolytic cell for producing hydrogen by electrolysis of water, comprising an electrolytic hydrogen production cell 1, a partition structure 2, an electrolytic module 3 and a second lifting structure 4; the electrolytic hydrogen production cell 1 comprises a cell body 11 and a cover body 12, the cover body 12 is covered on the upper end of the cell body 11, and two slots are symmetrically provided on two opposite sides of the cell body 11; the partition structure 2 is arranged inside the cell body 11, the partition structure 2 comprises an ion diaphragm 21, the ion diaphragm 21 divides the internal space of the cell body 11 into a cathode chamber and an anode chamber, the partition structure 2 also comprises a mounting frame 22, the ion diaphragm 21 is arranged on the mounting frame 22, and the two ends of the mounting frame 22 are respectively inserted into the two slots; the electrolytic module 3 comprises a hanging plate 31, an electrolytic sheet assembly 32, a clamping structure 33 and a first lifting structure 34, the hanging plate 31 is arranged in parallel at the lower end of the cover body 12, and the size of the hanging plate 31 is the same as the size of the inner cavity of the cell body 11, and the hanging plate 31 is provided with a first outlet pipe 311 and a second outlet pipe 312, the first outlet pipe 311 is connected to the cathode chamber, the second outlet pipe 312 is connected to the anode chamber, the lower end of the hanging plate 31 is in contact with the upper end of the ion diaphragm 21, the electrolytic sheet assembly 32 includes a plurality of cathode sheets 321 and a plurality of anode sheets 322, the plurality of cathode sheets 321 are arranged in the cathode chamber at equal intervals, the plurality of anode sheets 322 are arranged in the anode chamber at equal intervals, and the plurality of cathode sheets 321 correspond to the plurality of anode sheets 322 one by one, the clamping structure 33 There are several clamping structures 33 arranged on the hanging plate 31, the clamping structures 33 clamp the cathode plate 321 and the anode plate 322 on the hanging plate 31, the first lifting structure 34 is arranged at the upper end of the hanging plate 31, the first lifting structure 34 is used to change the height of the hanging plate 31 inside the trough body 11; there are two second lifting structures 4, the two second lifting structures 4 are respectively arranged at the two ends of the trough body 11, the second lifting structures 4 are used to open and close the trough body 11 and the cover body 12.

[0033] The staff injects the electrolyte solution into the tank body 11, and the second lifting structure 4 drives the cover body 12 to cover the upper end of the tank body 11, so that the electrolyte solution is in a closed chamber. The cover body 12 will drive the hanging plate 31 to move in the process of moving toward the tank body 11, and the hanging plate 31 drives a plurality of cathode sheets 321 and a plurality of anode sheets 322 to be inserted into the cathode chamber and the anode chamber of the tank body 11 respectively. After the cover body 12 and the upper end of the tank body 11 are completely sealed, the plurality of cathode sheets 321 and the plurality of anode sheets 322 are energized, and the water molecules are decomposed into hydrogen ions and hydroxide ions. Under the action of the electric field, the hydrogen ions migrate toward the cathode sheet 321, and the hydroxide ions migrate toward the anode sheet 322. The hydrogen ions obtain electrons at the cathode sheet 321 and combine into hydrogen gas, and the first hydrogen outlet pipe 311 is connected to the hydrogen gas outlet pipe 311. Overflow and collection, the hydroxide ions lose electrons at the anode plate 322, combine into oxygen molecules and water molecules, and are mainly precipitated as oxygen. The oxygen overflows and is collected through the second gas outlet pipe 312. As the electrolysis process proceeds, the electrolyte aqueous solution in the tank body 11 gradually decreases, resulting in a decrease in the contact area between the cathode plate 321 and the anode plate 322 and the electrolyte aqueous solution, thereby affecting the electrolysis efficiency. The first lifting structure 34 dynamically adjusts the positions of the cathode plate 321 and the anode plate 322 so that they can penetrate into the tank body 11 as the electrolyte aqueous solution level drops, maintaining or increasing the contact area with the electrolyte, and in this process, the cathode plate 321 and the anode plate 322 will both tilt, so that during the electrolysis process, more surfaces of the electrodes can contact the electrolyte aqueous solution, thereby maintaining the efficiency of electrolysis.

[0034] Reference Figure 4 , Figure 5 and Figure 6 As shown: the clamping structure 33 includes a mounting plate 331, a clamping assembly 332 and a hinge structure 333. The mounting plate 331 is fixed on the hanging plate 31; the clamping assembly 332 is arranged at the lower end of the mounting plate 331, and the clamping assembly 332 is used to clamp the corresponding cathode sheet 321 or anode sheet 322. The clamping assembly 332 includes two clamping plates 3321, and the two clamping plates 3321 are arranged in parallel. The gap between the two clamping plates 3321 is used to accommodate the cathode sheet 321 or the anode sheet 322. The clamping assembly 332 also includes The first driving structure 3322 is used to drive the two clamping plates 3321 to move closer to or away from each other; the hinged structure 333 is arranged between the mounting plate 331 and the clamping assembly 332, and the hinged structure 333 includes a first plate body 3331, a second plate body 3332 and a rotating shaft 3333. The first plate body 3331 is arranged on the mounting plate 331, and the second plate body 3332 is arranged on the first driving structure 3322. The rotating shaft 3333 connects the first plate body 3331 and the second plate body 3332.

[0035] If the electrode plate is directly fixedly connected to the hanging plate 31, the electrode plate may be squeezed, bent or damaged during the movement of the hanging plate 31 toward the inside of the tank body 11. By providing the mounting plate 331, the clamping assembly 332 and the hinged structure 333, the clamping assembly 332 can effectively fix the electrode plate between the two clamping plates 3321 to prevent the electrode plate from falling off or shaking during the movement of the hanging plate 31. At the same time, the hinged structure 333 enables the electrode plate to flexibly adjust its posture when squeezed by the bottom of the tank and maintain a stable contact state, thereby avoiding direct hard contact and squeezing and protecting the integrity and service life of the electrode plate.

[0036] Reference Figure 7 As shown: the clamping structure 33 also includes a second return spring 334, and there are four second return springs 334. The four second return springs 334 are respectively arranged on the four corners of the mounting plate 331, and the two ends of the second return spring 334 are respectively hinged to the mounting plate 331 and the first driving structure 3322.

[0037] The electrode plate is connected to the hanging plate 31 via a hinge structure 333. Since the electrode plate is not controlled in the horizontal direction, when the hanging plate 31 drives multiple electrode plates to move, the vibration will be transmitted to the electrode plate, causing two adjacent electrode plates to collide. By setting four second reset springs 334, the four second reset springs 334 can play a buffering and stabilizing role when the electrode plate is vibrated or offset. When the electrode plate deviates to one side, the two second reset springs 334 on the offset side are compressed, while the two second reset springs 334 on the other side are stretched. This opposite force can cause the electrode plate to return to a vertical state. Since the electrode plate is effectively controlled by the four second reset springs 334 to swing within a certain range, the collision between adjacent electrode plates due to vibration or offset is reduced, thereby maintaining the stability of the electrode plate during movement.

[0038] Reference Figure 7 As shown, the clamping structure 33 further includes a positioning connecting shaft 335 , which is disposed between the two clamping plates 3321 , and one end of the positioning connecting shaft 335 is connected to the first driving structure 3322 .

[0039] The staff operates the first driving structure 3322 to drive the two clamping plates 3321 away from each other. If the staff fails to grab the electrode plate, the electrode plate will fall. By setting the positioning connecting shaft 335, when installing the electrode plate, the staff only needs to simply insert the electrode plate into the positioning connecting shaft 335, and then operate the first driving structure 3322 to make the two clamping plates 3321 approach each other to fix the electrode plate. When removing the electrode plate, it is only necessary to reversely operate the first driving structure 3322 to make the two clamping plates 3321 move away from each other, and the electrode plate can be easily removed from the positioning connecting shaft 335. The whole process is simple and efficient. Even if the staff fails to grab the electrode plate immediately, the electrode plate will not fall directly. The electrode plate is suspended on the positioning connecting shaft 335, which avoids damage or personal injury caused by accidental falling of the electrode plate, thereby achieving safety and convenience during the installation and removal of the electrode plate.

[0040] Reference Figure 3 , Figure 4 and Figure 8 As shown: the first lifting structure 34 includes two first moving blocks 342, two second driving plates 341, a first linear driving structure 343 and a guide column 344; the two first moving blocks 342 are arranged at the upper end of the mounting plate 331; the two second driving plates 341 are symmetrically arranged about the middle of the hanging plate 31, and the two ends of the second driving plate 341 are respectively hinged to the hanging plate 31 and the first moving blocks 342; the first linear driving structure 343 is horizontally arranged at the upper ends of the two first moving blocks 342, and the first linear driving structure 343 is used to drive the two first moving blocks 342 to move closer to or away from each other; the guide column 344 is vertically arranged on one side of the first linear driving structure 343, one end of the guide column 344 is connected to the hanging plate 31, and the other end of the guide column 344 passes upward through the cover body 12.

[0041] When the liquid level of the electrolyte solution drops, the lifting plate 31 needs to drive the electrolyte sheet assembly 32 to move toward the tank body 11. By setting two second driving plates 341, two first moving blocks 342, a first linear driving structure 343 and a guide column 344, the first linear driving structure 343 drives the two first moving blocks 342 to move closer to each other. After the two second driving plates 341 are driven by the two first moving blocks 342, the two ends that are farther apart move closer to each other, while the two ends that are closer to each other are acted upon toward the inside of the tank body 11. The two second driving plates 341 push the hanging plate 31 to move toward the inside of the trough body 11. At the same time, the hanging plate 31 keeps moving in a horizontal direction under the restriction of the guide column 344, so that the hanging plate 31 can maintain a smooth moving trajectory when pushed, avoiding shaking or deviation caused by uneven force. The guide column 344 limits and guides the movement of the hanging plate 31, so that it can only move in a predetermined direction without rotating or tilting, thereby realizing automatic adjustment and compensation of the electrolyte sheet assembly 32 when the electrolyte aqueous solution descends.

[0042] Reference Figure 4 and Fig. 9 As shown: the electrolysis module 3 also includes a first guide assembly 35, which has two first guide assemblies 35. The two first guide assemblies 35 are respectively arranged at the bottom of the cathode chamber and the bottom of the anode chamber. The first guide assembly 35 includes a guide plate 351, a limit plate 352 and a first linear driver 353. The guide plate 351 is provided with a plurality of guide bevels 3511, and the plurality of guide bevels 3511 respectively correspond to a plurality of cathode sheets 321 or anode sheets 322 corresponding thereto. The limit plate 352 is arranged at one end of the guide plate 351, and the limit plate 352 is used to limit the movement of the guide plate 351. The first linear driver 353 is used to drive the guide plate 351 to move in the limit plate 352.

[0043] During the tilting process of the electrode plates, since the electrode plates may be in an uncontrolled state at the beginning, they may tilt in different directions. By setting a first guiding structure, especially a guiding bevel 3511 on the guide plate 351, several electrode plates can respectively dock with several guiding bevels 3511 during the descent process. The guiding bevel 3511 allows the lower end of the electrode plate to be guided after contact, so that several electrode plates move uniformly toward one side. When the lower end of the electrode plate moves to the end of the guiding bevel 3511, the tilting of the electrode plate is temporarily stopped due to the limiting effect of the guiding bevel 3511. At this time, the intervention of the first linear drive 353 allows the guide plate 351 to move in the limit plate 352, further pushing the electrode plate to continue to tilt, and the tilting angle is increased, thereby realizing automatic alignment and guiding of several electrode plates.

[0044] Reference Figure 3 and Fig.10 As shown: the partition structure 2 also includes a storage bin 23 and a reset structure 24; the storage bin 23 is arranged at the bottom of the tank body 11, and the storage bin 23 is connected to the tank body 11; the reset structure 24 is arranged inside the storage bin 23, and the reset structure 24 is used to reset the ion membrane 21 stored in the storage bin 23, and the reset structure 24 includes a U-shaped plate 241, a first guide cross bar 242, two sliders 243, two first drive plates 244 and two first reset springs 245, and the U-shaped plate 241 is installed at At the bottom of the storage bin 23, two ends of the first guide cross bar 242 are respectively connected to the two ends of the U-shaped plate 241, two sliders 243 are slidably set on the first guide cross bar 242, two first drive plates 244 are cross-set, and the two ends of the first drive plates 244 are respectively hinged to the mounting frame 22 and the slider 243, and two first return springs 245 are respectively sleeved on the two ends of the first guide cross bar 242, and the two ends of the first return spring 245 are respectively abutted against the end of the slider 243 and the U-shaped plate 241.

[0045] When the hanging plate 31 moves toward the inside of the tank body 11, the ion diaphragm 21 needs to move with the hanging plate 31 and keep the ion diaphragm 21 close to the hanging plate 31. By setting the storage bin 23 and the reset structure 24, the storage bin 23 connects the cathode chamber and the anode chamber from the bottom, providing a direct migration channel for ions, reducing the resistance of ion migration, allowing ions to migrate more quickly between the two poles, and improving the hydrogen production efficiency. When the ion diaphragm 21 moves downward, the ion diaphragm 21 transmits the downward force to the two cross-set first drive plates 244. The two first drive plates 244 are connected to the cathode chamber and the anode chamber from the bottom. The plate 244 pushes the two sliders 243 away from each other, and the two sliders 243 compress the two first return springs 245 respectively. When the hanging plate 31 is reset, the two first return springs 245 reset and push the two sliders 243 closer to each other, so that the ion membrane 21 moves upward, keeping the ion membrane 21 in contact with the hanging plate 31. When the hanging plate 31 is reset, the two first return springs 245 will reset and push the two sliders 243 closer to each other, so that the ion membrane 21 moves upward to a position in contact with the hanging plate 31, thereby achieving close fit and synchronous movement of the ion membrane 21 and the hanging plate 31.

[0046] Reference Figure 3 and Fig.11As shown: the second lifting structure 4 includes a fixed connecting shaft 41, a second moving block 42 and a guide lifting assembly 43; one end of the fixed connecting shaft 41 is connected to one end of the cover body 12; the middle part of the second moving block 42 is connected to the other end of the fixed connecting shaft 41; the guide lifting assembly 43 is arranged on one side of the slot body 11, and the guide lifting assembly 43 is used to limit the moving direction of the second moving block 42. The guide lifting assembly 43 includes a second rectangular frame 431, two guide vertical rods 432 and a second linear driver 433. The second rectangular frame 431 is connected to the slot body 11, and the two guide vertical rods 432 are arranged in parallel. The two ends of the guide vertical rods 432 are respectively connected to the two ends of the second rectangular frame 431, and the two ends of the second moving block 42 are respectively slidably arranged with the two guide vertical rods 432. The second linear driver 433 is arranged inside the second rectangular frame 431. The second linear driver 433 is used to drive the second moving block 42 to move along the guide vertical rods 432.

[0047] When connecting the trough body 11 and the cover body 12, the docking accuracy of the two needs to be maintained to prevent the gas generated by electrolysis from overflowing from the gap between the two. By setting a fixed connecting shaft 41, a second moving block 42 and a guide lifting assembly 43, the second linear drive 433 drives the second moving block 42 to move along the guide vertical rod 432. The guide vertical rod 432 not only provides a moving track for the second moving block 42, but also strictly limits its movement direction, ensuring the stability and linearity of the second moving block 42 during movement, so that the cover body 12 and the trough body 11 are accurately docked, avoiding gaps caused by inaccurate docking, thereby preventing the gas generated during the electrolysis process from overflowing from the gap, thereby improving the safety and efficiency of the hydrogen production process.

[0048] Reference Fig.11 and Fig.12 As shown: the second lifting structure 4 also includes a locking structure 44, which is arranged on one side of the second moving block 42. The locking structure 44 includes a locking block 441, a connecting plate 442, a second guide assembly 443 and a third linear drive 444; the locking block 441 corresponds to the fixed connecting shaft 41; the middle part of the connecting plate 442 is connected to the locking block 441; the second guide assembly 443 is arranged on the second moving block 42, and the second guide assembly 443 is used to limit the moving direction of the locking block 441. The second guide assembly 443 includes a mounting frame 4431 and two second guide cross bars 4432, one end of the mounting frame 4431 is connected to the second movable block 42, the two second guide cross bars 4432 are arranged in parallel, the two ends of the second guide cross bars 4432 are connected to the two ends of the mounting frame 4431, and the two ends of the second movable block 42 are respectively slidably connected to the two second guide cross bars 4432; the third linear drive 444 is arranged on one side of the second guide assembly 443, and the third linear drive 444 is used to push the connecting plate 442 to move along the guiding direction of the second guide assembly 443.

[0049] When the cover body 12 drives the electrolysis module 3 to rise, the electrode plate is at the lower end of the lifting plate 31, which is inconvenient for the staff to check and replace the electrode plate. By setting the locking structure 44, the third linear drive 444 drives the locking block 441 to separate from the fixed connecting shaft 41. When the cathode plate 321 needs to be inspected, the staff then pushes the cover body 12 to rotate clockwise around the axis of the fixed connecting shaft 41, so that the cathode plate 321 is above the anode plate 322, and then the third linear drive 444 drives the locking block 441 to press against the fixed connecting shaft 41 to fix the fixed connecting shaft 41. When the anode plate 322 needs to be inspected, the staff pushes the cover body 12 to rotate counterclockwise around the axis of the fixed connecting shaft 41, so that the anode plate 322 is above the cathode plate 321, and the locking block 441 fixes the fixed connecting shaft 41, thereby enabling the staff to place the electrode plate to be inspected in a position convenient for operation according to the inspection requirements.

[0050] Reference Fig.12 As shown, a cross protrusion 4411 is provided at one end of the locking block 441 facing the fixed connection shaft 41 , a cross groove 411 is provided at one end of the fixed connection shaft 41 abutting against the locking block 441 , and the cross protrusion 4411 corresponds to the cross groove 411 .

[0051] The cross protrusion 4411 is inserted into the cross groove 411, forming a stable and precise connection method, ensuring that the fixed connecting shaft 41 can maintain a stable connection with the locking block 441 during rotation, and is not prone to dislocation or falling off. Since the locking block 441 is fixedly connected to the fixed connecting shaft 41 and is restricted from rotating by the connecting plate 442, it effectively prevents the fixed connecting shaft 41 from accidentally rotating when it is not needed. When checking the cathode plate 321, the fixed connecting shaft 41 is rotated 90 degrees clockwise, and the cross groove 411 on the fixed connecting shaft 41 can still correspond to the cross protrusion 4411. Then, when checking the anode plate 322, the fixed connecting shaft 41 is rotated 180 degrees counterclockwise, and the cross groove 411 on the fixed connecting shaft 41 can still correspond to the cross protrusion 4411, thereby achieving fixation of the fixed connecting shaft 41 in different states.

[0052] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A closed modular electrolyzer for producing hydrogen by electrolysis of water, characterized in that: It comprises an electrolytic hydrogen production tank (1), a partition structure (2), an electrolytic module (3) and a second lifting structure (4); The electrolytic hydrogen production tank (1) comprises a tank body (11) and a cover body (12), wherein the cover body (12) is arranged on the upper end of the tank body (11); The partition structure (2) is arranged inside the cell body (11), and the partition structure (2) comprises an ion membrane (21), and the ion membrane (21) divides the internal space of the cell body (11) into a cathode chamber and an anode chamber; The electrolytic module (3) comprises a hanging plate (31), an electrolytic sheet assembly (32), a clamping structure (33) and a first lifting structure (34); the hanging plate (31) is arranged in parallel at the lower end of the cover body (12); the size of the hanging plate (31) is the same as the size of the inner cavity of the tank body (11); the lower end of the hanging plate (31) abuts against the upper end of the ion diaphragm (21); the electrolytic sheet assembly (32) comprises a plurality of cathode sheets (321) and a plurality of anode sheets (322); the plurality of cathode sheets (321) are arranged at equal intervals in the cathode chamber; and the plurality of anode sheets (322) are arranged in parallel at the lower end of the cover body (12). Anode sheets (322) are arranged at equal intervals in the anode chamber, and a plurality of cathode sheets (321) correspond to a plurality of anode sheets (322) one by one. A plurality of clamping structures (33) are provided, and the plurality of clamping structures (33) are provided on the hanging plate (31). The clamping structures (33) clamp the cathode sheets (321) and the anode sheets (322) on the hanging plate (31). A first lifting structure (34) is provided at the upper end of the hanging plate (31), and the first lifting structure (34) is used to change the height of the hanging plate (31) inside the tank body (11); There are two second lifting structures (4), and the two second lifting structures (4) are respectively arranged at two ends of the trough body (11), and the second lifting structures (4) are used to open and close the trough body (11) and the cover body (12).

2. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 1, characterized in that: The clamping structure (33) comprises a mounting plate (331), a clamping assembly (332) and a hinge structure (333). The mounting plate (331) is fixed on the hanging plate (31); The clamping assembly (332) is arranged at the lower end of the mounting plate (331), and the clamping assembly (332) is used to clamp the corresponding cathode sheet (321) or anode sheet (322). The clamping assembly (332) comprises two clamping plates (3321), and the two clamping plates (3321) are arranged in parallel, and the gap between the two clamping plates (3321) is used to accommodate the cathode sheet (321) or anode sheet (322); The hinge structure (333) is arranged between the mounting plate (331) and the clamping assembly (332).

3. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 2, characterized in that: The clamping structure (33) further comprises a second return spring (334), and there are four second return springs (334). The four second return springs (334) are respectively arranged on four corners of the mounting plate (331).

4. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 3, characterized in that: The clamping structure (33) further comprises a positioning connection shaft (335), and the positioning connection shaft (335) is arranged between the two clamping plates (3321).

5. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 1, characterized in that: The first lifting structure (34) comprises two first moving blocks (342), two second driving plates (341), a first linear driving structure (343) and a guide column (344); Two first moving blocks (342) are arranged on the upper end of the mounting plate (331); The two second drive plates (341) are symmetrically arranged about the middle of the hanging plate (31), and the two ends of the second drive plates (341) are respectively hinged to the hanging plate (31) and the first moving block (342); The first linear driving structure (343) is horizontally arranged at the upper ends of the two first moving blocks (342), and the first linear driving structure (343) is used to drive the two first moving blocks (342) to move closer to or farther from each other; The guide column (344) is vertically arranged on one side of the first linear drive structure (343); one end of the guide column (344) is connected to the hanging plate (31); and the other end of the guide column (344) passes through the cover body (12) upwards.

6. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 2, characterized in that: The electrolysis module (3) further comprises a first guide assembly (35), wherein the first guide assembly (35) comprises two first guide assemblies (35), and the two first guide assemblies (35) are respectively arranged at the bottom of the cathode chamber and the bottom of the anode chamber.

7. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 1, characterized in that: The partition structure (2) further includes a storage compartment (23) and a reset structure (24); The storage bin (23) is arranged at the bottom of the tank body (11), and the storage bin (23) is in communication with the tank body (11); The reset structure (24) is arranged inside the storage bin (23), and the reset structure (24) is used to reset the ion membrane (21) received in the storage bin (23).

8. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 1, characterized in that: The second lifting structure (4) comprises a fixed connecting shaft (41), a second moving block (42) and a guide lifting assembly (43); One end of the fixed connection shaft (41) is connected to one end of the cover body (12); The middle portion of the second moving block (42) is connected to the other end of the fixed connecting shaft (41); The guide lifting component (43) is arranged on one side of the slot body (11), and the guide lifting component (43) is used to limit the moving direction of the second moving block (42).

9. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 8, characterized in that: The second lifting structure (4) further comprises a locking structure (44), the locking structure (44) being arranged on one side of the second moving block (42), the locking structure (44) comprising a locking block (441), a connecting plate (442), a second guide assembly (443) and a third linear drive (444); The locking block (441) corresponds to the fixed connecting shaft (41); The middle portion of the connecting plate (442) is connected to the locking block (441); The second guide component (443) is arranged on the second moving block (42), and the second guide component (443) is used to limit the moving direction of the locking block (441); The third linear drive (444) is arranged on one side of the second guide assembly (443), and the third linear drive (444) is used to push the connecting plate (442) to move along the guiding direction of the second guide assembly (443).

10. A closed modular electrolyzer for producing hydrogen by electrolysis of water according to claim 9, characterized in that: A cross protrusion (4411) is provided at one end of the locking block (441) facing the fixed connection shaft (41), and a cross groove (411) is provided at one end of the fixed connection shaft (41) abutting against the locking block (441), and the cross protrusion (4411) corresponds to the cross groove (411).

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