Water electrolysis hydrogen production and hydrogen mixing control method and device

Abstract

The invention provides a water electrolysis hydrogen production and hydrogen mixing control method and device, the device comprises an automatic water adding mechanism arranged between a water distribution tank and an electrolyzed water storage barrel, along with continuous water electrolysis hydrogen production work and consumption of electrolyzed water in an electrolytic tank, a floating ball can move downwards, and a blocking piston is far away from a blocking opening through a transmission assembly; and electrolyzed water in the electrolyzed water storage barrel can be gathered into the electrolytic tank through the pipe cavity, the plugging opening and the flow guide pipe, and consumed electrolyzed water is automatically supplemented. An automatic drying agent updating mechanism is arranged at the top end of the electrolytic tank, and in the process of adding electrolyzed water into the electrolytic tank through an automatic water adding mechanism, the automatic drying agent updating mechanism can be driven through the automatic water adding mechanism, so that a mesh conveying belt can automatically move; therefore, the drying agent located above the communicating pipe is automatically replaced, and the adsorption efficiency of the drying agent on water vapor contained in hydrogen and oxygen is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen production by electrolysis of water, and in particular to a method and device for controlling hydrogen production by electrolysis of water and hydrogen mixing. Background Art

[0002] Water electrolysis is a relatively convenient method for producing hydrogen. Direct current is passed through an electrolytic cell filled with electrolyte. Water molecules undergo an electrochemical reaction at the electrodes, decomposing into hydrogen and oxygen. When direct current is passed through some aqueous electrolyte solutions, the decomposed substances have nothing to do with the original electrolyte; instead, the solvent, water, is decomposed, while the original electrolyte remains in the water. Examples of such electrolytes include sulfuric acid, sodium hydroxide, and potassium hydroxide. During water electrolysis, pure water has a low degree of ionization and low electrical conductivity, making it a typical weak electrolyte. Therefore, these electrolytes are added to increase the solution's conductivity, enabling the smooth electrolysis of water into hydrogen and oxygen.

[0003] After searching, the existing patent (Announcement No.: CN214655268U) discloses a water electrolysis hydrogen production device, including a power box and a bottom box, the bottom box is installed on the upper outer wall of the power box, and an electrolytic cell is provided on the upper outer wall of the power box. Before the hydrogen and oxygen enter the heating box, they are dried by a solid desiccant to avoid containing water vapor and prevent the formed hydrogen and oxygen from being impure. Then, a booster pump is used to pressurize the interior of the heating box to liquefy the hydrogen and oxygen. Then, the temperature inside the heating box is adjusted, and the liquid hydrogen and oxygen solutions are separated according to their different boiling points to obtain the required hydrogen. The water electrolysis gasification device has a simple structure and can discharge hydrogen and oxygen separately, thereby achieving the purpose of complete collection.

[0004] However, there are still some shortcomings in the above solution:

[0005] 1. It uses solid desiccant to dry hydrogen and oxygen. However, as the working time increases, the solid desiccant becomes damp due to the adsorption of a large amount of water vapor, which greatly reduces the adsorption capacity of the solid desiccant. Therefore, the solid desiccant needs to be manually disassembled and replaced regularly or irregularly, which is inconvenient. In addition, when the solid desiccant is disassembled and replaced, the hydrogen production work needs to be stopped, thereby reducing work efficiency.

[0006] 2. As the electrolysis of water to produce hydrogen continues, the electrolyte solution in the electrolytic cell gradually decreases and the liquid level drops. In order to ensure the continued production of hydrogen by electrolysis, it is necessary to manually add an appropriate amount of electrolyte solution to the electrolytic cell regularly or irregularly. The amount added each time needs to be controlled according to the actual loss, which is inconvenient to operate and increases the burden on the staff.

[0007] In view of this, the present invention proposes a method and device for controlling hydrogen production and hydrogen mixing by electrolyzing water. Summary of the Invention

[0008] The purpose of the present invention is to provide a method and device for controlling hydrogen production and hydrogen mixing by electrolysis of water, so as to solve the problems in the related art of requiring manual regular or irregular removal and replacement of solid desiccant, and requiring manual regular or irregular addition of an appropriate amount of electrolyte aqueous solution to the electrolytic cell, which is inconvenient to operate and reduces work efficiency.

[0009] The technical solution of the present invention is as follows: A water electrolysis hydrogen production and hydrogen mixing control device, comprising: an electrolysis water storage barrel and two support frames symmetrically fixed to the bottom of the electrolysis water storage barrel for supporting the electrolysis water storage barrel, an electrolysis assembly and a water distribution tank are provided on one side of the support frame, the electrolysis assembly includes an electrolysis cell, the electrolysis cell is fixedly connected to the water distribution tank, and the water distribution tank and the electrolysis cell are connected through a connecting groove;

[0010] The water distribution pool is provided with internal viewing windows at both the front and rear ends, a through opening is provided at the bottom of the water distribution pool, a shuttle seam is provided through the outer wall of the water distribution pool located on one side of the through opening, and an automatic water adding mechanism is provided between the water distribution pool and the electrolyzed water storage barrel for intermittently adding the electrolyzed water stored in the electrolyzed water storage barrel into the electrolytic cell;

[0011] The top of the electrolytic cell is provided with a desiccant automatic renewal mechanism, and during the process of adding electrolytic water into the electrolytic cell through the automatic water adding mechanism, the desiccant automatic renewal mechanism can be driven by the automatic water adding mechanism.

[0012] Preferably, the automatic water adding mechanism includes a water pipe fixedly connected to the inside of the electrolyzed water storage barrel, a fixing frame for supporting the water pipe is fixedly connected to the side wall of the electrolytic cell, a lumen is opened inside the water pipe, a sealing port is fixedly connected inside the lumen, a sealing piston is provided on the sliding sleeve inside the lumen and matches the sealing port, and a guide pipe is fixedly connected between the water pipe and the electrolytic cell.

[0013] Preferably, the automatic water adding mechanism further comprises a float ball arranged inside the water distribution tank, and a transmission assembly is provided between the float ball and the blocking piston.

[0014] Preferably, the transmission assembly includes a connecting rod fixedly connected to the outer wall of the float and a push-pull rod fixed to the end of the sealing piston, two limiting rings are fixed to the outer wall of the push-pull rod, a rod sleeve is provided between the two limiting rings, and the diameter of the push-pull rod is smaller than the inner diameter of the rod sleeve.

[0015] Preferably, a rocker arm is fixedly connected to the bottom end of the rod sleeve, two limit plates are fixedly connected to one end of the water pipe, the rocker arm is clamped between the two limit plates, a rotating shaft is rotatably connected between the two limit plates, the rotating shaft is fixedly connected to the rocker arm, and one end of the connecting rod is fixedly connected to the rocker arm.

[0016] Preferably, the automatic desiccant renewal mechanism includes a conveying frame, a hopper fixedly connected to the top of the conveying frame, and a bracket fixed to the top of the electrolytic cell for supporting the conveying frame, and a conveying assembly is provided inside the conveying frame;

[0017] The conveying assembly includes two rollers rotatably connected to the inside of the conveying frame, a mesh conveyor belt is connected between the two rollers, the outer wall of the mesh conveyor belt is evenly distributed with dividing plates, and a partition is fixed inside the conveying frame. The partition is clamped on the inner side of the mesh conveyor belt for supporting the mesh conveyor belt and dividing the inner side of the mesh conveyor belt;

[0018] The conveying frame is fixedly connected to the electrolytic cell via a connecting pipe. A material receiving frame is fixedly connected to the bottom of one side of the conveying frame. A sealing box is detachably fixed to the bottom end of the material receiving frame via bolts.

[0019] Preferably, a linkage assembly is provided between the connecting rod and one of the rollers, the linkage assembly includes a first bevel gear and a second bevel gear fixed to one end of the connecting rod, the second bevel gear is meshed with the first bevel gear, the first bevel gear is sleeved on one end of the roller, a telescopic groove is provided inside the first bevel gear, an insert block is slidably sleeved inside the telescopic groove, a return spring is connected between the insert block and the telescopic groove, one side of the bottom end of the insert block is chamfered, the outer periphery of the roller end is provided with a ring array of sockets matching the insert block, a slip ring groove is provided on the outer wall of one end of the roller, a limiting slip ring is fixed inside the first bevel gear, and the limiting slip ring is slidably fitted in the slip ring groove.

[0020] Preferably, the electrolytic assembly includes transparent windows arranged at the front and rear ends of the electrolytic cell, and two upper and lower spaces are opened inside the electrolytic cell. A cathode rod and an anode rod are arranged in the upper space of the electrolytic cell, and a DC power supply electrically connected to the cathode rod and the anode rod is arranged in the lower space of the electrolytic cell.

[0021] Preferably, a suction assembly and a mixed hydrogen separation assembly are provided on the upper side of the electrolytic cell, the suction assembly includes an induced draft fan installed on the top of the conveying frame, the air outlet end of the induced draft fan is connected to a right-angle pipe, the mixed hydrogen separation assembly includes a cooling box, the cooling box is fixedly connected to the right-angle pipe, the upper end of the cooling box is provided with a hydrogen outlet pipe, and a drain pipe is provided on one side of the cooling box.

[0022] A method for producing hydrogen by electrolysis of water and controlling hydrogen mixing, comprising the following steps:

[0023] S1. Pre-store an appropriate amount of electrolyzed water in the electrolyzed water storage barrel to supplement the electrolyzed water consumed by the electrolysis of water to produce hydrogen in the electrolytic cell. Add an appropriate amount of electrolyzed water to the electrolytic cell and the water distribution tank. Under the action of the connecting groove, the electrolyzed water levels in the water distribution tank and the electrolytic cell can be at the same height.

[0024] S2. Initially, the blocking piston inside the lumen blocks the blocking port. Figure 2 As shown, at this time, the float floats on the upper end surface of the electrolyzed water stored in the water distribution tank, and the connecting rod is clamped on the inner side of the shuttle seam. The cathode rod and the anode rod are energized by a DC power supply to produce hydrogen from the electrolyzed water stored in the electrolytic cell, so that hydrogen and oxygen are generated inside the electrolytic cell. As the hydrogen production work by electrolysis of water continues, the electrolyzed water in the electrolytic cell is consumed, and the liquid level drops. Under the action of the connecting groove, the liquid level inside the water distribution tank can also move downward accordingly.

[0025] S3. When the liquid level inside the water distribution tank moves downward, the float can move downward and drive the rocker arm to rotate around the rotating shaft through the connecting rod, and the rocker arm drives the rod sleeve to move. Since the inner diameter of the rod sleeve is larger than the diameter of the push-pull rod, when the rod sleeve moves, the push-pull rod can be pushed by the limit ring, so that the blocking piston is away from the blocking port, so that the electrolyzed water inside the electrolyzed water storage barrel can be collected into the electrolytic cell through the tube cavity, the blocking port and the guide pipe, so as to automatically replenish the consumed electrolyzed water. As the electrolyzed water level inside the electrolytic cell rises, the electrolyzed water level inside the water distribution tank also gradually rises, lifting the float. Under the action of the transmission component, the blocking piston is pushed again to block the blocking port;

[0026] S4. A large amount of desiccant is loaded into the hopper. It should be noted that the particle size of the desiccant is larger than the mesh of the mesh conveyor belt. The desiccant in the hopper falls onto the upper surface of the mesh conveyor belt. When a large amount of hydrogen and oxygen are generated inside the electrolytic cell, the suction component is activated to pump the hydrogen and oxygen inside the electrolytic cell into the cooling box through the right-angle pipe. During this process, the water vapor contained in the hydrogen and oxygen will be adsorbed by the desiccant.

[0027] S5. In the process of pushing and pulling the blocking piston by the push-pull rod, the connecting rod can rotate alternately forward and reverse, and the connecting rod drives the second bevel gear to rotate alternately forward and reverse, and the second bevel gear drives the first bevel gear to rotate alternately forward and reverse. At this time, under the limiting action of the slip ring groove and the limit slip ring, the first bevel gear can rotate smoothly at the end of the return spring, and the arrangement of the plug block and the return spring enables the first bevel gear to intermittently rotate the roller when rotating alternately forward and reverse, that is, when the second bevel gear rotates counterclockwise, it drives the first bevel gear to rotate clockwise. Under the action of the plug block and the socket, the first bevel gear rotates the roller clockwise, so that the mesh conveyor belt filled with desiccant can automatically move a section, thereby automatically replacing the desiccant located above the connecting pipe, and when the first bevel gear rotates counterclockwise, the plug block is squeezed upward by the socket, and the first bevel gear will not cause the roller to rotate;

[0028] S6. The hydrogen and oxygen mixed gas entering the cooling box is cooled down according to the different liquefaction temperatures of hydrogen and oxygen, so that the liquefaction temperature of oxygen is reached but the liquefaction temperature of hydrogen is not reached, so that the hydrogen can be discharged through the hydrogen outlet pipe and the liquefied oxygen can be discharged through the liquid discharge pipe.

[0029] The working principle and beneficial effects of the present invention are:

[0030] 1. In the present invention, a through hole is provided at the bottom of the water distribution tank, and a shuttle seam is provided through the outer wall of the water distribution tank on one side of the through hole. An automatic water adding mechanism is provided between the water distribution tank and the electrolyzed water storage barrel. Initially, the blocking piston located inside the tube cavity blocks the blocking hole. As the electrolysis of water to produce hydrogen continues, the electrolyzed water inside the electrolytic cell is consumed, and the liquid level drops. Under the action of the connecting groove, the liquid level inside the water distribution tank can also move downward accordingly. When the liquid level inside the water distribution tank moves downward, the float can move downward, and the blocking piston is moved away from the blocking hole through the transmission component, so that the electrolyzed water inside the electrolyzed water storage barrel can flow into the electrolytic cell through the tube cavity, the blocking hole, and the guide pipe, automatically replenishing the consumed electrolyzed water. As the electrolyzed water level inside the electrolytic cell rises, the electrolyzed water level inside the water distribution tank also gradually rises, lifting the float. Under the action of the transmission component, the blocking piston is pushed again to block the blocking hole. The present invention can realize automatic supplementation of electrolyzed water during the process of producing hydrogen by electrolysis of water, thereby ensuring the continuous and stable operation of the electrolysis hydrogen production process, and has high use value;

[0031] 2. In the present invention, an automatic desiccant renewal mechanism is provided at the top of the electrolytic cell. During the process of adding electrolytic water to the electrolytic cell via the automatic water-adding mechanism, the automatic desiccant renewal mechanism can be driven by the automatic water-adding mechanism. Specifically, during the process of the push-pull rod pushing and pulling the blocking piston, the connecting rod can rotate alternately forward and reverse. The connecting rod drives the first bevel gear to rotate alternately forward and reverse via the second bevel gear. During the alternate forward and reverse rotation, the first bevel gear can intermittently rotate the roller in one direction, causing the mesh conveyor belt containing the desiccant to automatically shift a certain distance, thereby automatically replacing the desiccant located above the connecting pipe. This ensures the desiccant's efficient adsorption of water vapor contained in hydrogen and oxygen gases, eliminating the need for manual, irregular replacement and the stagnation of hydrogen production due to desiccant replacement. The invention has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Figure 1 This is a schematic diagram of the three-dimensional structure of a water electrolysis hydrogen production and hydrogen mixing control device proposed in the present invention;

[0034] Figure 2 This is a partial cross-sectional structural diagram of the automatic water adding mechanism proposed by the present invention;

[0035] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0036] Figure 4 This is a schematic diagram of the structure of the suction component and the mixed hydrogen separation component proposed in the present invention;

[0037] Figure 5 This is a partial cross-sectional structural diagram of the desiccant automatic renewal mechanism proposed in the present invention;

[0038] Figure 6 This is a schematic diagram of a partial cross-sectional structure of the linkage assembly proposed in the present invention;

[0039] In the picture:

[0040] 1. Electrolyzed water storage tank;

[0041] 2. Support frame;

[0042] 3. Automatic water adding mechanism; 31. Water delivery pipe; 32. Fixing bracket; 33. Sealing port; 34. Sealing piston; 35. Diversion tube; 36. Float; 37. Lumen; 38. Transmission assembly; 381. Connecting rod; 382. Rotating shaft; 383. Rocker arm; 384. Push-pull rod; 385. Limiting ring; 386. Rod sleeve; 387. Limiting plate;

[0043] 4. Water distribution tank; 41. Through port; 42. Internal viewing window; 43. Shuttle seam;

[0044] 5. Electrolytic assembly; 51. Electrolytic cell; 52. Transparent window; 53. Cathode rod; 54. DC power supply; 55. Anode rod;

[0045] 6. Connecting groove;

[0046] 7. Automatic desiccant renewal mechanism; 71. Conveyor frame; 72. Hopper; 73. Conveying assembly; 731. Roller; 732. Mesh conveyor belt; 733. Dividing plate; 74. Partition; 75. Bracket; 76. Connecting pipe; 77. Linkage assembly; 771. First bevel gear; 772. Second bevel gear; 773. Return spring; 774. Insert block; 775. Insert hole; 776. Slip ring groove; 777. Limiting slip ring; 78. Material receiving frame; 79. Sealing box;

[0047] 8. Suction assembly; 81. Induced draft fan; 82. Right-angle pipe;

[0048] 9. Mixed hydrogen separation assembly; 91. Cooling box; 92. Hydrogen outlet pipe; 93. Liquid drain pipe. DETAILED DESCRIPTION

[0049] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0050] Example 1

[0051] See also Figure 1 、 Figure 2 as well as Figure 3 A method and device for controlling hydrogen production and hydrogen mixing by electrolysis of water, comprising: an electrolysis water storage barrel 1 and two support frames 2 symmetrically fixed to the bottom of the electrolysis water storage barrel 1 for supporting the electrolysis water storage barrel 1. An electrolysis assembly 5 and a water distribution tank 4 are provided on one side of the support frame 2. The electrolysis assembly 5 includes an electrolysis cell 51, which is fixedly connected to the water distribution tank 4, and the water distribution tank 4 and the electrolysis cell 51 are connected via a connecting groove 6. The electrolysis assembly 5 includes transparent windows 52 provided at the front and rear ends of the electrolysis cell 51. The electrolysis cell 51 has two upper and lower spaces defined therein. A cathode rod 53 and an anode rod 55 are provided in the upper space of the electrolysis cell 51, and a DC power supply 54 electrically connected to the cathode rod 53 and the anode rod 55 is provided in the lower space of the electrolysis cell 51.

[0052] In this embodiment, an appropriate amount of electrolyzed water is stored in the electrolyzed water storage barrel 1 in advance to replenish the electrolyzed water consumed in the electrolytic cell 51 for hydrogen production by electrolysis of water. An appropriate amount of electrolyzed water is loaded into the electrolytic cell 51 and the water distribution tank 4. Under the action of the connecting groove 6, the electrolyzed water liquid levels inside the water distribution tank 4 and the electrolytic cell 51 can be at the same height.

[0053] Furthermore, the front and rear ends of the water distribution tank 4 are provided with internal viewing windows 42, a through opening 41 is opened at the bottom end of the water distribution tank 4, and a shuttle seam 43 is opened through the outer wall of the water distribution tank 4 located on the side of the through opening 41. An automatic water adding mechanism 3 is provided between the water distribution tank 4 and the electrolyzed water storage barrel 1, which is used to intermittently add the electrolyzed water stored in the electrolyzed water storage barrel 1 to the inside of the electrolytic cell 51.

[0054] Specifically, the automatic water-adding mechanism 3 includes a water pipe 31 fixedly connected to the interior of the electrolyzed water storage barrel 1. A fixing bracket 32 for supporting the water pipe 31 is fixedly connected to the side wall of the electrolytic cell 51. A lumen 37 is defined within the water pipe 31, a sealing port 33 is fixedly connected to the lumen 37, and a sealing piston 34 is slidingly sleeved within the lumen 37 to cooperate with the sealing port 33. A flow guide tube 35 is fixedly connected between the water pipe 31 and the electrolytic cell 51. The automatic water-adding mechanism 3 also includes a float 36 disposed within the water distribution tank 4, with a transmission assembly 38 disposed between the float 36 and the sealing piston 34.

[0055] The transmission assembly 38 includes a connecting rod 381 fixedly connected to the outer wall of the float 36 and a push-pull rod 384 fixed to the end of the blocking piston 34. Two limiting rings 385 are fixedly connected to the outer wall of the push-pull rod 384. A rod sleeve 386 is sleeved between the two limiting rings 385. The diameter of the push-pull rod 384 is smaller than the inner diameter of the rod sleeve 386. A rocker arm 383 is fixedly connected to the bottom end of the rod sleeve 386. Two limiting plates 387 are fixedly connected to one end of the water pipe 31. The rocker arm 383 is sandwiched between the two limiting plates 387. A rotating shaft 382 is rotatably connected between the two limiting plates 387. The rotating shaft 382 is fixedly connected to the rocker arm 383. One end of the connecting rod 381 is fixedly connected to the rocker arm 383.

[0056] In this embodiment, initially, the blocking piston 34 located inside the lumen 37 blocks the blocking port 33. Figure 2 As shown, at this time, the float 36 floats on the upper end surface of the electrolyzed water stored in the water distribution tank 4, and the connecting rod 381 is clamped on the inner side of the shuttle seam 43. The cathode rod 53 and the anode rod 55 are energized by the DC power supply 54, and hydrogen production is carried out on the electrolyzed water stored in the electrolytic cell 51, so that hydrogen and oxygen are generated in the electrolytic cell 51. As the hydrogen production work of the electrolytic water continues, the electrolyzed water in the electrolytic cell 51 is consumed and the liquid level drops. Under the action of the connecting groove 6, the liquid level in the water distribution tank 4 can also move downward accordingly.

[0057] When the liquid level inside the water distribution tank 4 moves downward, the float 36 can move downward and drive the rocker arm 383 to rotate around the rotating shaft 382 through the connecting rod 381. The rocker arm 383 drives the rod sleeve 386 to move. Since the inner diameter of the rod sleeve 386 is larger than the diameter of the push-pull rod 384, when the rod sleeve 386 moves, the push-pull rod 384 can be pushed by the limiting ring 385, so that the blocking piston 34 is away from the blocking port 33, so that the electrolyzed water inside the electrolyzed water storage barrel 1 can pass through the tube cavity 37, the blocking port 33 and the guide tube 35 into the electrolytic cell 51, automatically replenishing the consumed electrolyzed water. As the liquid level of the electrolyzed water inside the electrolytic cell 51 rises, the liquid level of the electrolyzed water inside the water distribution tank 4 also gradually rises, lifting the float 36. Under the action of the transmission component 38, the blocking piston 34 is pushed again to block the blocking port 33.

[0058] Example 2

[0059] See also Figure 1 、 Figure 4 、 Figure 5 as well as Figure 6 A method and device for controlling hydrogen production and hydrogen mixing by electrolysis of water, including all the contents of Example 1. In addition, a desiccant automatic renewal mechanism 7 is provided at the top of the electrolytic cell 51. During the process of adding electrolyzed water to the inside of the electrolytic cell 51 through the automatic water adding mechanism 3, the desiccant automatic renewal mechanism 7 can be driven by the automatic water adding mechanism 3.

[0060] Specifically, the desiccant automatic renewal mechanism 7 includes a conveying frame 71, a hopper 72 fixedly connected to the top of the conveying frame 71, and a bracket 75 fixed to the top of the electrolytic cell 51 for supporting the conveying frame 71. A conveying assembly 73 is provided inside the conveying frame 71.

[0061] The conveyor assembly 73 includes two rollers 731 rotatably connected to the interior of the conveyor frame 71. A mesh conveyor belt 732 is connected between the two rollers 731. The outer wall of the mesh conveyor belt 732 is evenly spaced with partition plates 733. A partition plate 74 is fixedly connected to the interior of the conveyor frame 71. The partition plate 74 is clamped inside the mesh conveyor belt 732 to support and divide the inner surface of the mesh conveyor belt 732. The conveyor frame 71 is fixedly connected to the electrolytic cell 51 via a connecting pipe 76. A material receiving frame 78 is fixedly connected to the bottom of one side of the conveyor frame 71. The bottom end of the material receiving frame 78 is removably fixed to a sealing box 79 via bolts.

[0062] Furthermore, a linkage assembly 77 is provided between the connecting rod 381 and one of the rollers 731. The linkage assembly 77 includes a first bevel gear 771 and a second bevel gear 772 fixed to one end of the connecting rod 381. The second bevel gear 772 meshes with the first bevel gear 771. The first bevel gear 771 is sleeved on one end of the roller 731. A telescopic groove is provided inside the first bevel gear 771. A plug block 774 is slidably sleeved inside the telescopic groove. A return spring 773 is connected between the plug block 774 and the telescopic groove. One side of the bottom end of the plug block 774 is chamfered. A ring array is provided on the outer periphery of the end of the roller 731 with a socket 775 that cooperates with the plug block 774. A slip ring groove 776 is provided on the outer wall of one end of the roller 731. A limiting slip ring 777 is fixed to the inside of the first bevel gear 771, and the limiting slip ring 777 is slidably fitted with the slip ring groove 776.

[0063] In this embodiment, a large amount of desiccant is loaded into the hopper 72. It should be noted that the particle size of the desiccant is larger than the mesh of the mesh conveyor belt 732. The desiccant inside the hopper 72 falls onto the upper surface of the mesh conveyor belt 732. When a large amount of hydrogen and oxygen are generated inside the electrolytic cell 51, the water vapor contained in the hydrogen and oxygen will be adsorbed by the desiccant.

[0064] When the first bevel gear 771 is in the state of being rotated in the forward and reverse directions, the first bevel gear 771 is in the state of being rotated in the forward and reverse directions, and the second bevel gear 772 is in the state of being rotated in the forward and reverse directions. The roller 731 rotates intermittently, that is, when the second bevel gear 772 rotates counterclockwise, it drives the first bevel gear 771 to rotate clockwise. Under the action of the plug block 774 and the socket 775, the first bevel gear 771 rotates the roller 731 clockwise, so that the mesh conveyor belt 732 filled with desiccant can automatically move a certain distance, thereby automatically replacing the desiccant located above the connecting pipe 76. When the first bevel gear 771 rotates counterclockwise, the plug block 774 is squeezed upward by the socket 775, and the first bevel gear 771 will not cause the roller 731 to rotate.

[0065] Example 3

[0066] See also Figure 1 and Figure 4A method and apparatus for controlling hydrogen production and hydrogen mixing by water electrolysis, including all of the contents of Example 2, is disclosed. Furthermore, a suction assembly 8 and a hydrogen mixing separation assembly 9 are provided on the upper side of the electrolytic cell 51. The suction assembly 8 includes an induced draft fan 81 mounted on the top of the conveyor frame 71, with a right-angle pipe 82 connected to the outlet end of the induced draft fan 81. The hydrogen mixing separation assembly 9 includes a cooling box 91, which is fixedly connected to the right-angle pipe 82. A hydrogen outlet pipe 92 is provided on the upper end of the cooling box 91, and a liquid drain pipe 93 is provided on one side of the cooling box 91.

[0067] In this embodiment, pumping assembly 8 is activated to pump hydrogen and oxygen from electrolytic cell 51 into cooling box 91 via right-angle tube 82. During this process, moisture contained in the hydrogen and oxygen is adsorbed by the desiccant. The hydrogen and oxygen mixture entering cooling box 91 is cooled, depending on the liquefaction temperatures of the hydrogen and oxygen gases, to the liquefaction temperature of oxygen but not hydrogen. This allows hydrogen to be discharged through hydrogen outlet pipe 92, while liquefied oxygen can be discharged through drain pipe 93.

[0068] It should be noted that the present application preferably adopts cooling liquefaction method to separate hydrogen and oxygen mixed gas, by cooling the gas inside cooling box 91, being compressed to a certain pressure by external compressor (not shown), and then being cooled to low temperature, making it liquefy, is existing mature technology, and does not go into details here. Because the boiling point of oxygen is lower than the boiling point of hydrogen, oxygen can be liquefied first by cooling, thereby separating hydrogen. In actual application, liquefied oxygen can also be made to become gaseous state again by heating up subsequently, thereby realize the separation of hydrogen and oxygen, specifically can refer to the separation method of hydrogen and oxygen in existing patent (Announcement No.: CN214655268U) a kind of electrolysis water hydrogen production device.

[0069] Working principle and usage process: Pre-store an appropriate amount of electrolyzed water in the electrolyzed water storage barrel 1 to supplement the electrolyzed water consumed by electrolyzing water to produce hydrogen in the electrolytic cell 51. Add an appropriate amount of electrolyzed water into the electrolytic cell 51 and the water distribution tank 4. Under the action of the connecting groove 6, the electrolyzed water liquid levels in the water distribution tank 4 and the electrolytic cell 51 can be at the same height.

[0070] Initially, the blocking piston 34 located inside the lumen 37 blocks the blocking port 33. Figure 2As shown, at this time, the float 36 floats on the upper end surface of the electrolyzed water stored in the water distribution tank 4, and the connecting rod 381 is clamped on the inner side of the shuttle seam 43. The cathode rod 53 and the anode rod 55 are energized by the DC power supply 54, and hydrogen production is carried out on the electrolyzed water stored in the electrolytic cell 51, so that hydrogen and oxygen are generated in the electrolytic cell 51. As the hydrogen production work of the electrolytic water continues, the electrolyzed water in the electrolytic cell 51 is consumed and the liquid level drops. Under the action of the connecting groove 6, the liquid level in the water distribution tank 4 can also move downward accordingly.

[0071] When the liquid level inside the water distribution tank 4 moves downward, the float 36 can move downward and drive the rocker arm 383 to rotate around the rotating shaft 382 through the connecting rod 381, and the rocker arm 383 drives the rod sleeve 386 to move. Since the inner diameter of the rod sleeve 386 is larger than the diameter of the push-pull rod 384, when the rod sleeve 386 moves, the push-pull rod 384 can be pushed by the limiting ring 385, so that the blocking piston 34 is away from the blocking port 33, so that the electrolyzed water inside the electrolyzed water storage barrel 1 can be collected into the electrolytic cell 51 through the tube cavity 37, the blocking port 33 and the guide tube 35, so as to automatically replenish the consumed electrolyzed water. As the electrolyzed water level inside the electrolytic cell 51 rises, the electrolyzed water level inside the water distribution tank 4 also gradually rises, lifting the float 36. Under the action of the transmission component 38, the blocking piston 34 is pushed again to block the blocking port 33.

[0072] A large amount of desiccant is loaded into the hopper 72. It should be noted that the particle size of the desiccant is larger than the mesh of the mesh conveyor belt 732. The desiccant inside the hopper 72 falls onto the upper surface of the mesh conveyor belt 732. When a large amount of hydrogen and oxygen are generated inside the electrolytic cell 51, the suction component 8 is started to pump the hydrogen and oxygen inside the electrolytic cell 51 into the cooling box 91 through the right-angle tube 82. During this process, the water vapor contained in the hydrogen and oxygen will be adsorbed by the desiccant.

[0073] When the push-pull rod 384 pushes and pulls the blocking piston 34, the connecting rod 381 can rotate alternately forward and reverse, and the connecting rod 381 drives the second bevel gear 772 to rotate alternately forward and reverse, and the second bevel gear 772 drives the first bevel gear 771 to rotate alternately forward and reverse. At this time, under the limiting action of the slip ring groove 776 and the limiting slip ring 777, the first bevel gear 771 can rotate smoothly at the end of the return spring 773, and the setting of the insert block 774 and the return spring 773 enables the first bevel gear 771 to rotate alternately forward and reverse when rotating alternately forward and reverse. 31 rotates intermittently, that is, when the second bevel gear 772 rotates counterclockwise, it drives the first bevel gear 771 to rotate clockwise. Under the action of the plug block 774 and the socket 775, the first bevel gear 771 rotates the roller 731 clockwise, so that the mesh conveyor belt 732 filled with desiccant can automatically move a certain distance, thereby automatically replacing the desiccant located above the connecting pipe 76. When the first bevel gear 771 rotates counterclockwise, the plug block 774 is squeezed and moved upward by the socket 775, and the first bevel gear 771 will not cause the roller 731 to rotate.

[0074] The hydrogen and oxygen mixed gas entering the cooling box 91 is cooled down according to the different liquefaction temperatures of hydrogen and oxygen, so that the liquefaction temperature of oxygen is reached but the liquefaction temperature of hydrogen is not reached, so that the hydrogen can be discharged through the hydrogen outlet pipe 92 and the liquefied oxygen can be discharged through the drain pipe 93.

[0075] It is worth noting that the circuits, electronic components and modules involved in the present invention are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0076] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water electrolysis hydrogen production and hydrogen mixing control device, comprising: An electrolytic water storage barrel (1) and two support frames (2) symmetrically fixed to the bottom of the electrolytic water storage barrel (1) for supporting the electrolytic water storage barrel (1), characterized in that an electrolytic component (5) and a water distribution tank (4) are provided on one side of the support frame (2), the electrolytic component (5) includes an electrolytic cell (51), the electrolytic cell (51) is fixedly connected to the water distribution tank (4), and the water distribution tank (4) and the electrolytic cell (51) are connected through a connecting groove (6); The water distribution pool (4) is provided with inner viewing windows (42) at both the front and rear ends, a through opening (41) is provided at the bottom end of the water distribution pool (4), a shuttle seam (43) is provided through the outer wall of the water distribution pool (4) located on one side of the through opening (41), and an automatic water adding mechanism (3) is provided between the water distribution pool (4) and the electrolyzed water storage barrel (1) for intermittently adding the electrolyzed water stored in the electrolyzed water storage barrel (1) into the interior of the electrolytic cell (51); The top of the electrolytic cell (51) is provided with a desiccant automatic renewal mechanism (7). During the process of adding electrolytic water into the electrolytic cell (51) through the automatic water adding mechanism (3), the desiccant automatic renewal mechanism (7) can be driven by the automatic water adding mechanism (3).

2. A water electrolysis hydrogen production and hydrogen mixing control device according to claim 1, characterized in that: The automatic water-adding mechanism (3) comprises a water pipe (31) fixedly connected to the inside of the electrolytic water storage barrel (1); a fixing frame (32) for supporting the water pipe (31) is fixedly connected to the side wall of the electrolytic cell (51); a tube cavity (37) is provided inside the water pipe (31); a sealing port (33) is fixedly connected inside the tube cavity (37); a sealing piston (34) matching the sealing port (33) is slidably sleeved inside the tube cavity (37); and a flow guide pipe (35) is fixedly connected between the water pipe (31) and the electrolytic cell (51).

3. A water electrolysis hydrogen production and hydrogen mixing control device according to claim 2, characterized in that: The automatic water-adding mechanism (3) further comprises a float (36) arranged inside the water distribution tank (4), and a transmission assembly (38) is provided between the float (36) and the blocking piston (34).

4. A water electrolysis hydrogen production and hydrogen mixing control device according to claim 3, characterized in that: The transmission assembly (38) includes a connecting rod (381) fixedly connected to the outer wall of the float (36) and a push-pull rod (384) fixedly connected to the end of the blocking piston (34). Two limiting rings (385) are fixedly connected to the outer wall of the push-pull rod (384). A rod sleeve (386) is sleeved between the two limiting rings (385). The diameter of the push-pull rod (384) is smaller than the inner diameter of the rod sleeve (386).

5. A water electrolysis hydrogen production and hydrogen mixing control device according to claim 4, characterized in that: The bottom end of the rod sleeve (386) is fixedly connected to a rocker (383), one end of the water pipe (31) is fixedly connected to two limit plates (387), the rocker (383) is sandwiched between the two limit plates (387), a rotating shaft (382) is rotatably connected between the two limit plates (387), the rotating shaft (382) is fixedly connected to the rocker (383), and one end of the connecting rod (381) is fixedly connected to the rocker (383).

6. A water electrolysis hydrogen production and hydrogen mixing control device according to claim 5, characterized in that: The desiccant automatic renewal mechanism (7) includes a conveying frame (71), a hopper (72) fixedly connected to the top of the conveying frame (71), and a bracket (75) fixedly connected to the top of the electrolytic cell (51) for supporting the conveying frame (71). A conveying assembly (73) is provided inside the conveying frame (71); The conveying assembly (73) includes two rollers (731) rotatably connected to the inside of the conveying frame (71), a mesh conveyor belt (732) is connected between the two rollers (731), and the outer wall of the mesh conveyor belt (732) is evenly distributed with dividing plates (733), and a partition (74) is fixed inside the conveying frame (71), and the partition (74) is clamped on the inner side of the mesh conveyor belt (732) for supporting the mesh conveyor belt (732) and dividing the inner side of the mesh conveyor belt (732); The conveying frame (71) is fixedly connected to the electrolytic cell (51) via a connecting pipe (76); a material receiving frame (78) is fixedly connected to the bottom of one side of the conveying frame (71); and a sealing box (79) is detachably fixed to the bottom end of the material receiving frame (78) via bolts.

7. A water electrolysis hydrogen production and hydrogen mixing control device according to claim 6, characterized in that: A linkage assembly (77) is provided between the connecting rod (381) and one of the rotating rollers (731), and the linkage assembly (77) includes a first bevel gear (771) and a second bevel gear (772) fixed to one end of the connecting rod (381), the second bevel gear (772) is meshed with the first bevel gear (771), the first bevel gear (771) is sleeved on one end of the rotating roller (731), a telescopic groove is provided inside the first bevel gear (771), and an insert is slidably sleeved inside the telescopic groove. (774), a reset spring (773) is connected between the plug (774) and the telescopic slot, one side of the bottom end of the plug (774) is chamfered, the outer periphery of the end of the roller (731) is provided with a ring array of sockets (775) that match the plug (774), a slip ring groove (776) is provided on the outer wall of one end of the roller (731), a limiting slip ring (777) is fixed inside the first bevel gear (771), and the limiting slip ring (777) is slidably connected to the slip ring groove (776).

8. A water electrolysis hydrogen production and hydrogen mixing control device according to claim 7, characterized in that: The electrolytic assembly (5) includes transparent windows (52) arranged at the front and rear ends of the electrolytic cell (51). The electrolytic cell (51) has two upper and lower spaces inside. A cathode rod (53) and an anode rod (55) are arranged in the upper space of the electrolytic cell (51), and a DC power supply (54) electrically connected to the cathode rod (53) and the anode rod (55) is arranged in the lower space of the electrolytic cell (51).

9. A water electrolysis hydrogen production and hydrogen mixing control device according to claim 8, characterized in that: A suction assembly (8) and a mixed hydrogen separation assembly (9) are provided on the upper side of the electrolytic cell (51). The suction assembly (8) includes an induced draft fan (81) installed on the top of the conveying frame (71). The air outlet end of the induced draft fan (81) is connected to a right-angle tube (82). The mixed hydrogen separation assembly (9) includes a cooling box (91). The cooling box (91) is fixedly connected to the right-angle tube (82). A hydrogen outlet pipe (92) is provided at the upper end of the cooling box (91). A liquid discharge pipe (93) is provided on one side of the cooling box (91).

10. A method for controlling hydrogen production and hydrogen mixing by electrolysis of water, using the device for controlling hydrogen production and hydrogen mixing by electrolysis of water as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Pre-store an appropriate amount of electrolyzed water in the electrolyzed water storage barrel (1) to supplement the electrolyzed water consumed by the electrolysis of water to produce hydrogen in the electrolysis cell (51). Fill an appropriate amount of electrolyzed water into the electrolysis cell (51) and the water distribution tank (4). Under the action of the connecting groove (6), the electrolyzed water liquid levels in the water distribution tank (4) and the electrolysis cell (51) can be at the same height. S2. Initially, the blocking piston (34) located inside the lumen (37) blocks the blocking port (33), as shown in FIG2 . At this time, the float (36) floats on the upper end surface of the electrolyzed water stored inside the water distribution tank (4), and the connecting rod (381) is clamped inside the shuttle seam (43). The cathode rod (53) and the anode rod (55) are energized by the DC power supply (54), and hydrogen production is performed on the electrolyzed water stored inside the electrolytic cell (51), so that hydrogen and oxygen are generated inside the electrolytic cell (51). As the electrolysis of water and hydrogen production continues, the electrolyzed water inside the electrolytic cell (51) is consumed, and the liquid level drops. Under the action of the connecting groove (6), the liquid level inside the water distribution tank (4) can also move downward accordingly. S3. When the liquid level inside the water distribution tank (4) moves downward, the float (36) can move downward and drive the rocker (383) to rotate around the rotating shaft (382) through the connecting rod (381). The rocker (383) drives the rod sleeve (386) to move. Since the inner diameter of the rod sleeve (386) is larger than the diameter of the push-pull rod (384), when the rod sleeve (386) moves, the push-pull rod (384) can be pushed by the limiting ring (385), so that the blocking piston (34) is away from the blocking port ( 33), so that the electrolyzed water inside the electrolyzed water storage barrel (1) can be collected into the electrolytic cell (51) through the tube cavity (37), the blocking port (33) and the guide tube (35), and the consumed electrolyzed water is automatically replenished. As the electrolyzed water level inside the electrolytic cell (51) rises, the electrolyzed water level inside the water distribution tank (4) also gradually rises, lifting the float (36). Under the action of the transmission component (38), the blocking piston (34) is pushed again to block the blocking port (33); S4. A large amount of desiccant is loaded into the hopper (72). It should be noted that the particle size of the desiccant is larger than the mesh of the mesh conveyor belt (732). The desiccant in the hopper (72) falls onto the upper surface of the mesh conveyor belt (732). When a large amount of hydrogen and oxygen are generated in the electrolytic cell (51), the suction component (8) is started to pump the hydrogen and oxygen in the electrolytic cell (51) into the cooling box (91) through the right-angle tube (82). During this process, the water vapor contained in the hydrogen and oxygen will be adsorbed by the desiccant. S5. In the process of the push-pull rod (384) pushing and pulling the blocking piston (34), the connecting rod (381) can rotate alternately forward and reverse, and the connecting rod (381) drives the second bevel gear (772) to rotate alternately forward and reverse, and the second bevel gear (772) drives the first bevel gear (771) to rotate alternately forward and reverse. At this time, under the limiting action of the slip ring groove (776) and the limiting slip ring (777), the first bevel gear (771) can rotate smoothly at the end of the return spring (773), and the setting of the insert block (774) and the return spring (773) enables the first bevel gear (771) to rotate in the opposite direction when rotating alternately forward and reverse. The roller (731) rotates intermittently, that is, when the second bevel gear (772) rotates counterclockwise, it drives the first bevel gear (771) to rotate clockwise. Under the action of the plug block (774) and the socket (775), the first bevel gear (771) rotates the roller (731) clockwise, so that the mesh conveyor belt (732) filled with desiccant can automatically move a certain distance, thereby automatically replacing the desiccant located above the connecting pipe (76). When the first bevel gear (771) rotates counterclockwise, the plug block (774) is squeezed and moved upward by the socket (775), and the first bevel gear (771) does not cause the roller (731) to rotate. S6. The hydrogen and oxygen mixed gas entering the cooling box (91) is cooled down according to the different liquefaction temperatures of hydrogen and oxygen, so that the liquefaction temperature of oxygen is reached but the liquefaction temperature of hydrogen is not reached, so that the hydrogen can be discharged through the hydrogen outlet pipe (92) and the liquefied oxygen can be discharged through the liquid discharge pipe (93).

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