High current density hydrogen production apparatus using alkaline electrolysis of water

Abstract

This invention relates to the field of water electrolysis for hydrogen production technology, and discloses a high-current-density alkaline water electrolysis hydrogen production device, including an alkaline water electrolyzer. End caps are fixedly connected to both sides of the alkaline water electrolyzer, and terminals are installed on both sides of the two end caps. A conduit is installed on the lower surface of the alkaline water electrolyzer, and a gas pipe is installed on the upper surface of the alkaline water electrolyzer. This invention is adapted to high-current-density operation, improving hydrogen production efficiency and stability. Through optimized electrolyzer structure and efficient heat dissipation design, the device can stably adapt to high-current-density operating conditions. After the current is smoothly introduced into the electrolyzer through the terminals, the electrode catalytic reaction is highly efficient and controllable. The electrolyte is replenished through the conduit, and the reaction gas is smoothly discharged through the gas pipe, ensuring the continuous and stable progress of the electrolysis reaction. This effectively avoids the decrease in hydrogen production efficiency caused by reaction disorder under high current density, significantly increasing the hydrogen production per unit time and adapting to the needs of large-scale hydrogen production.

Description

Technical Field

[0001] This invention relates to the field of water electrolysis hydrogen production technology, specifically to a high current density alkaline water electrolysis hydrogen production device. Background Technology

[0002] Alkaline water electrolysis hydrogen production equipment is a professional complete set of equipment that uses alkaline aqueous solution as electrolyte to produce hydrogen through water electrolysis. It is a mature and widely used green hydrogen production equipment. It decomposes water into hydrogen and oxygen in an alkaline environment. It has the characteristics of reliable technology, low cost and long service life. It is suitable for large-scale hydrogen production and is widely used in energy storage, chemical industry, metallurgy, transportation and other fields.

[0003] Currently, most existing alkaline water electrolysis hydrogen production equipment uses natural heat dissipation, which has low heat dissipation efficiency. When operating at high current density, key components such as the electrolyzer, end caps, and terminals are prone to generating a large amount of heat. If the heat cannot be dissipated in time, it will not only lead to disordered electrolysis reaction and a significant decrease in hydrogen production efficiency, but also accelerate the aging of equipment components and shorten the service life of the equipment. At the same time, the single heat dissipation method has high energy consumption, which does not meet the requirements of energy-saving production. Therefore, we propose a high current density alkaline water electrolysis hydrogen production equipment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a high-current-density alkaline water electrolysis hydrogen production device. This solves the problems of existing alkaline water electrolysis hydrogen production devices that mostly rely on natural heat dissipation, resulting in low heat dissipation efficiency. During high-current-density operation, key components such as the electrolyzer, end caps, and terminals easily generate a large amount of heat, which cannot be dissipated in time. This not only leads to disordered electrolysis reactions and a significant decrease in hydrogen production efficiency, but also accelerates the aging of equipment components and shortens the service life of the equipment. At the same time, the single heat dissipation method has high energy consumption, which does not meet the requirements of energy-saving production.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high current density alkaline water electrolysis hydrogen production device, comprising an alkaline water electrolysis cell, with end caps fixedly connected to both sides of the cell, terminals installed on both sides of the end caps, a conduit installed on the lower surface of the cell, a gas pipe installed on the upper surface of the cell, a heat dissipation assembly provided on one side of the end caps, the heat dissipation assembly including a mounting groove, the mounting groove being located on the side of the end cap away from the alkaline water electrolysis cell, a mounting ring fixedly connected to the surface of the end cap, a mounting cover threaded onto the mounting ring, an assembly frame installed on the side of the mounting cover away from the end cap, a drive motor mounted on the assembly frame, one drive end of the drive motor being rotatably connected to the inner wall of the mounting cover and extending into the mounting groove, the surface of the drive end of the drive motor located in the mounting groove being fixed. The device is equipped with guide vanes and a guide shroud fixedly connected to the surface of the end cover. The guide shroud has an internal collection groove, and the end cover has an internal flow channel. The two ends of the flow channel are connected to the mounting groove and the collection groove, respectively. A water outlet pipe is installed on the upper surface of the end cover, and a water supply pipe is installed on one side of the mounting shroud. An auxiliary component for supplying cooling water is installed on the upper surface of the guide shroud. This design is suitable for high current density operation, improving hydrogen production efficiency and stability. Through optimized electrolyzer structure and efficient heat dissipation design, the device can stably adapt to high current density operating conditions. After the current is smoothly introduced into the electrolyzer through the terminals, the electrode catalytic reaction is highly efficient and controllable. The electrolyte is replenished through a conduit, and the reaction gas is smoothly discharged through a gas pipe, ensuring continuous and stable electrolysis. This effectively avoids the decrease in hydrogen production efficiency caused by reaction disorder under high current density, significantly increasing the hydrogen production per unit time and adapting to large-scale hydrogen production needs.

[0006] Preferably, the other drive end of the drive motor passes through the assembly frame and is fixedly connected to a positioning head. Several circumferential array of air inlet blades are installed on the side of the positioning head. The air inlet blades are inclined. A positioning ring is installed at the end of the air inlet blades away from the positioning head to guide air to impact the mounting cover. The dual heat dissipation systems work together to achieve efficient and precise heat dissipation and ensure long-term operation of the equipment. The equipment adopts a dual heat dissipation structure that combines liquid cooling and air cooling. The liquid cooling system circulates cooling water in the flow channel and collection tank, which can fully absorb the core heat generated by the end cover and electrolytic cell operation to achieve continuous and efficient liquid cooling.

[0007] Preferably, the positioning ring is equipped with a plurality of circumferentially arrayed diffusers on the side near the mounting cover. The diffusers are inclined to guide the air impacting the mounting cover to the terminals. The air-cooling system works in sync, with the air inlet guiding the airflow to impact the mounting cover for heat dissipation, and the diffusers precisely directing the airflow to the terminals for focused cooling of high-load terminals. This prevents terminals from overheating, aging, and declining conductivity. The dual heat dissipation works together to precisely control the overall temperature of the equipment, solve the overheating problem under high current density operation, reduce equipment wear, and extend the service life of the equipment.

[0008] Preferably, a stabilizing ring is installed at the end of the diffuser blade away from the positioning ring. The structure is scientifically designed, and operation and maintenance are convenient. The drive motor synchronously drives the guide vane and the air inlet vane to realize the integrated linkage of the dual heat dissipation system. There is no need to equip multiple additional drive components, which simplifies the equipment structure and reduces energy consumption and maintenance costs.

[0009] Preferably, the end of the water outlet pipe away from the mounting cover is equipped with a first connector for discharging cooling water that has absorbed heat. The mounting cover is connected to the mounting ring by threads, which facilitates the disassembly and maintenance of internal guide vanes, drive motors and other components. The terminals, water outlet pipe and water inlet pipe are all equipped with connectors, which facilitates the connection of the equipment with external circuits and pipelines. The overall operation is convenient and reduces the workload of operators.

[0010] Preferably, the auxiliary component includes a water tank located directly above the end cap, with the end of the water supply pipe away from the mounting cover connected to the lower surface of the water tank, and an inlet pipe installed on the upper surface of the water tank.

[0011] Preferably, a second connector is installed at the end of the water inlet pipe furthest from the water tank for connecting to the water supply pipe. This ensures stable conductivity, reduces operational risks, and the air-cooling system provides targeted heat dissipation protection for the terminals, effectively preventing problems such as poor contact and decreased conductivity due to overheating at high current densities. This ensures that the current is smoothly introduced into the electrolytic cell, guaranteeing the stability of the electrolytic reaction. At the same time, the components are firmly connected, and structures such as positioning rings and stabilizing rings ensure stable rotation of the air inlet and diffuser blades, preventing loose components from affecting heat dissipation and conductivity, further reducing potential operational risks.

[0012] Preferably, the surface of the water tank is equipped with an observation window, which is vertically arranged to observe the water level inside the water tank. The heat dissipation system is reasonably designed, reliable in operation, and convenient for water replenishment. The water tank in the auxiliary components can stably supply cooling water to the liquid cooling system. The observation window can monitor the water level in real time, making it convenient for operators to replenish cooling water in a timely manner and avoid heat dissipation interruption due to water shortage.

[0013] Preferably, both sides of the water tank are fixedly connected to support rods, and the ends of the two support rods away from the water tank are fixedly connected to the surface of the guide shroud. The overall operation is highly efficient and energy-saving, with strong practicality. The dual heat dissipation system works in concert, which greatly improves heat dissipation efficiency compared to a single heat dissipation method, reducing heat dissipation energy consumption. At the same time, it ensures that the hydrogen production reaction proceeds efficiently under high current density, achieving a dual improvement in hydrogen production efficiency and energy saving effect. The equipment is suitable for various large-scale hydrogen production scenarios, with a compact structure, reasonable layout, convenient maintenance, and reliable operation. It can stably meet the hydrogen production needs under high current density for a long time, making it highly practical and widely applicable.

[0014] Preferably, the upper surface of the water tank is equipped with a tank opening for cleaning the inside of the water tank. A cover is threaded onto the tank opening. The tank opening design facilitates regular cleaning of the inside of the water tank, preventing scale and debris from clogging the flow channels, ensuring smooth circulation of cooling water, further improving the operational reliability of the heat dissipation system, and reducing the equipment failure rate.

[0015] In summary, the technical effects and advantages of this invention are as follows: 1. In this invention, the equipment is adapted to high current density operation, improving hydrogen production efficiency and stability. By optimizing the electrolyzer structure and combining it with an efficient heat dissipation design, the equipment can stably adapt to high current density operating conditions. After the current is smoothly introduced into the electrolyzer through the terminals, the electrode catalytic reaction is highly efficient and controllable. The electrolyte is replenished through the conduit and the reaction gas is smoothly discharged through the gas pipe, ensuring that the electrolysis reaction continues to proceed stably. This effectively avoids the decrease in hydrogen production efficiency caused by reaction disorder under high current density, significantly increasing the amount of hydrogen produced per unit time and adapting to the needs of large-scale hydrogen production.

[0016] 2. In this invention, the dual heat dissipation systems work together to achieve efficient and precise heat dissipation, ensuring long-term operation of the equipment. The equipment adopts a dual heat dissipation structure that combines liquid cooling and air cooling. The liquid cooling system circulates cooling water in the flow channel and collection tank, which can fully absorb the core heat generated by the end cover and electrolytic cell, achieving continuous and efficient liquid cooling. The air cooling system works in sync, with the air inlet blades guiding the airflow to impact the mounting cover for heat dissipation, and the air diffusers precisely directing the airflow to the terminals, focusing on cooling the high-load terminals to prevent overheating, aging, and decreased conductivity. The dual heat dissipation works together to precisely control the overall temperature of the equipment, solve the overheating problem under high current density operation, reduce equipment wear, and extend the service life of the equipment.

[0017] 3. In this invention, the heat dissipation system is reasonably designed, operates reliably, and is easy to replenish with water. The water tank in the auxiliary components can stably supply cooling water to the liquid cooling system, and the observation window can monitor the water level in real time, making it convenient for operators to replenish cooling water in a timely manner and avoid heat dissipation interruption due to water shortage. The tank opening design facilitates regular cleaning of the inside of the water tank, preventing scale and debris from clogging the flow channel, ensuring smooth circulation of cooling water, further improving the operational reliability of the heat dissipation system, and reducing the equipment failure rate.

[0018] 4. In this invention, the structure is scientifically laid out, and operation and maintenance are convenient. The drive motor synchronously drives the guide vanes and the air inlet vanes to realize the integrated linkage of the dual heat dissipation system. There is no need to equip multiple additional drive components, which simplifies the equipment structure and reduces energy consumption and maintenance costs. The mounting cover is connected to the mounting ring by threads, which facilitates the disassembly and maintenance of internal guide vanes, drive motors and other components. The terminals, water outlet pipe and water inlet pipe are all equipped with connectors, which facilitates the connection of the equipment with external circuits and pipelines. The overall operation is convenient and reduces the workload of operators.

[0019] 5. In this invention, the conductivity is stable, reducing potential operational risks. The air-cooling system provides targeted heat dissipation protection for the terminals, effectively preventing problems such as poor contact and decreased conductivity due to overheating at high current densities. This ensures that the current is smoothly introduced into the electrolytic cell, guaranteeing the stability of the electrolytic reaction. At the same time, the components are firmly connected, and structures such as positioning rings and stabilizing rings ensure stable rotation of the air inlet and diffuser blades, preventing loose components from affecting heat dissipation and conductivity, further reducing potential operational risks.

[0020] 6. In this invention, the overall operation is highly efficient and energy-saving, with strong practicality. The dual heat dissipation systems work together, which greatly improves heat dissipation efficiency compared to a single heat dissipation method, reducing heat dissipation energy consumption. At the same time, it ensures that the hydrogen production reaction proceeds efficiently under high current density, achieving a dual improvement in hydrogen production efficiency and energy saving effect. The equipment is adaptable to various large-scale hydrogen production scenarios, with a compact structure, reasonable layout, convenient maintenance, and reliable operation. It can stably meet the hydrogen production needs under high current density for a long time, making it highly practical and widely applicable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a high current density alkaline water electrolysis hydrogen production device according to the present invention. Figure 2 This is a bottom view schematic diagram of a high current density alkaline water electrolysis hydrogen production device according to the present invention. Figure 3 This is an exploded structural diagram of the heat dissipation component in a high current density alkaline water electrolysis hydrogen production device according to the present invention. Figure 4 In a high current density alkaline water electrolysis hydrogen production device of the present invention Figure 3 A schematic diagram of the structure at point A; Figure 5 In a high current density alkaline water electrolysis hydrogen production device of the present invention Figure 3 A schematic diagram of the structure at point B; Figure 6 This is a partial structural diagram of the heat dissipation component in a high current density alkaline water electrolysis hydrogen production device according to the present invention. Figure 7This is a partial cross-sectional view of a high current density alkaline water electrolysis hydrogen production device according to the present invention. Figure 8 In a high current density alkaline water electrolysis hydrogen production device of the present invention Figure 7 A schematic diagram of the structure at point C.

[0022] In the diagram: 1. Alkaline water electrolysis cell; 2. End cap; 3. Terminal; 4. Conduit; 5. Gas pipe; 6. Heat dissipation assembly; 61. Mounting slot; 62. Mounting ring; 63. Flow channel; 64. Mounting cover; 65. Assembly frame; 66. Flow guide cover; 67. Water supply pipe; 68. Water outlet pipe; 69. First connector; 610. Flow guide vane; 611. Drive motor; 612. Positioning head; 613. Air inlet vane; 614. Positioning ring; 615. Air diffuser vane; 616. Stabilizing ring; 617. Gathering tank; 7. Auxiliary components; 71. Water tank; 72. Observation window; 73. Support rod; 74. Water inlet pipe; 75. Second connector; 76. Cover; 77. Tank opening. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] refer to Figures 1-8The high current density alkaline water electrolysis hydrogen production equipment shown includes an alkaline water electrolyzer 1. End caps 2 are fixedly connected to both sides of the alkaline water electrolyzer 1. Terminals 3 are installed on both sides of the two end caps 2. A conduit 4 is installed on the lower surface of the alkaline water electrolyzer 1, and a gas pipe 5 is installed on the upper surface of the alkaline water electrolyzer 1. A heat dissipation assembly 6 is provided on one side of the end cap 2. The heat dissipation assembly 6 includes a mounting groove 61, which is located on the side of the end cap 2 away from the alkaline water electrolyzer 1. A mounting ring 62 is fixedly connected to the surface of the end cap 2. A mounting cover 64 is threaded onto the mounting ring 62. An assembly frame 65 is installed on the side of the mounting cover 64 away from the end cap 2. A drive motor 611 is mounted on the assembly frame 65. One drive end of the drive motor 611 is rotatably connected to the inner wall of the mounting cover 64 and extends into the mounting groove 61. A guide vane 610 is fixedly connected to the surface of the drive end of the drive motor 611 in the mounting groove 61. A flow guide shroud 66 is fixedly connected to the surface of the end cap 2. An accumulation groove 617 is opened inside the flow guide shroud 66. A flow channel 63 is opened inside the end cap 2. The two ends of the flow channel 63 are connected to the mounting groove 61 and the accumulation groove 617 respectively. A water outlet pipe 68 is installed on the upper surface of the end cap 2. A water supply pipe 67 is installed on one side of the mounting cover 64. An auxiliary component 7 for supplying cooling water is installed on the upper surface of the flow guide shroud 66. It is adapted to high current density operation, improves hydrogen production efficiency and stability. The equipment can stably adapt to high current density operation conditions by optimizing the electrolyzer structure and combining it with efficient heat dissipation design. After the current is smoothly introduced into the electrolyzer through the terminal 3, the electrode catalytic reaction is efficient and controllable. The electrolyte is replenished through the conduit 4 and the reaction gas is smoothly discharged through the gas pipe 5, ensuring that the electrolysis reaction continues to proceed stably. It effectively avoids the decrease in hydrogen production efficiency caused by reaction disorder under high current density, greatly increases the hydrogen production per unit time, and adapts to the needs of large-scale hydrogen production.

[0025] The other drive end of the drive motor 611 passes through the assembly frame 65 and is fixedly connected to the positioning head 612. Several circular arrays of air inlet blades 613 are installed on the side of the positioning head 612. The air inlet blades 613 are inclined. A positioning ring 614 is installed at the end of the air inlet blades 613 away from the positioning head 612 to guide air to impact the mounting cover 64. The dual heat dissipation system works together to achieve efficient and precise heat dissipation and ensure long-term operation of the equipment. The equipment adopts a dual heat dissipation structure that combines liquid cooling and air cooling. The liquid cooling system circulates cooling water in the flow channel 63 and the collection tank 617, which can fully absorb the core heat generated by the end cover 2 and the electrolytic cell, and achieve continuous and efficient liquid cooling.

[0026] Among them, the positioning ring 614 is equipped with several circumferential array of diffuser blades 615 on the side near the mounting cover 64. The diffuser blades 615 are inclined and are used to guide the air impacting the mounting cover 64 to the terminal 3. The air cooling system is linked in sync. The air inlet blades 613 guide the airflow to impact the mounting cover 64 for heat dissipation. The diffuser blades 615 accurately guide the airflow to the terminal 3, focusing on cooling the high-load terminal 3, avoiding overheating and aging of the terminal 3 and the decline in conductivity. The dual heat dissipation works together to accurately control the overall temperature of the equipment, solve the overheating problem under high current density operation, reduce equipment wear, and extend the service life of the equipment.

[0027] Among them, the end of the diffuser 615 away from the positioning ring 614 is equipped with a stabilizing ring 616. The structure is scientifically laid out and easy to operate and maintain. The drive motor 611 synchronously drives the guide vane 610 and the air inlet vane 613 to realize the integrated linkage of the dual heat dissipation system. There is no need to equip multiple additional drive components, which simplifies the equipment structure and reduces energy consumption and maintenance costs.

[0028] The outlet pipe 68 is equipped with a first connector 69 at the end away from the mounting cover 64, which is used to discharge the cooling water that has absorbed heat. The mounting cover 64 is connected to the mounting ring 62 by threads, which facilitates the disassembly and maintenance of internal components such as the guide vane 610 and the drive motor 611. The terminal 3, the outlet pipe 68, and the inlet pipe 74 are all equipped with connectors, which facilitates the connection of the equipment with external circuits and pipelines. The overall operation is convenient and reduces the workload of the operators.

[0029] The auxiliary component 7 includes a water tank 71, which is located directly above the end cap 2. The end of the water supply pipe 67 away from the mounting cover 64 is connected to the lower surface of the water tank 71, and the upper surface of the water tank 71 is equipped with an inlet pipe 74.

[0030] The water inlet pipe 74 is equipped with a second connector 75 at the end furthest from the water tank 71, which is used to connect to the water supply pipe. This ensures stable conductivity and reduces potential operational risks. The air-cooling system provides targeted heat dissipation protection for the terminal 3, effectively preventing problems such as poor contact and decreased conductivity due to overheating of the terminal 3 under high current density. This ensures that the current is smoothly introduced into the electrolytic cell, guaranteeing the stability of the electrolytic reaction. At the same time, all components are firmly connected. Structures such as the positioning ring 614 and the stabilizing ring 616 ensure the stable rotation of the air inlet blade 613 and the air diffuser blade 615, preventing loose components from affecting heat dissipation and conductivity, and further reducing potential operational risks.

[0031] The water tank 71 is equipped with an observation window 72 on its surface. The observation window 72 is set vertically and is used to observe the water level inside the water tank 71. The heat dissipation system is reasonably designed, reliable in operation and convenient to replenish water. The water tank 71 in the auxiliary component 7 can stably supply cooling water to the liquid cooling system. The observation window 72 can monitor the water level in real time, which makes it convenient for operators to replenish cooling water in time and avoid heat dissipation interruption due to water shortage.

[0032] The water tank 71 is fixedly connected to two sides with support rods 73. The ends of the two support rods 73 away from the water tank 71 are fixedly connected to the surface of the guide shroud 66. The overall operation is highly efficient and energy-saving, with strong practicality. The dual heat dissipation system works in tandem, which greatly improves heat dissipation efficiency compared to a single heat dissipation method, reduces heat dissipation energy consumption, and ensures that the hydrogen production reaction proceeds efficiently under high current density, achieving a dual improvement in hydrogen production efficiency and energy saving effect. The equipment is suitable for various large-scale hydrogen production scenarios, with a compact structure, reasonable layout, convenient maintenance and reliable operation. It can stably meet the hydrogen production needs under high current density for a long time, and has strong practicality and promotion potential.

[0033] The water tank 71 has an opening 77 installed on its upper surface. The opening 77 is used to clean the inside of the water tank 71. A cover 76 is threaded onto the opening 77. The opening 77 is designed to facilitate regular cleaning of the inside of the water tank 71, preventing scale and debris from clogging the flow channel 63, ensuring smooth cooling water circulation, further improving the operational reliability of the heat dissipation system, and reducing the equipment failure rate.

[0034] Working principle of the invention: When the equipment is running, the current is introduced into the electrolytic cell through the terminals 3 on the two end caps 2. Under the catalytic action of the internal electrodes, the water in the electrolyte undergoes an electrolytic reaction to generate hydrogen and oxygen. The gas produced by the reaction is discharged through the gas pipe 5 on the upper surface, while the electrolyte is replenished through the conduit 4 on the lower surface. The water tank 71 in the auxiliary component 7 supplies cooling water to the collection tank 617 in the guide shroud 66 through the water supply pipe 67. The cooling water flows into the mounting groove 61 through the flow channel 63 inside the end cover 2. After the drive motor 611 starts, it drives the guide vane 610 in the mounting groove 61 to rotate at high speed, driving the cooling water to circulate in the flow channel 63 and the collection tank 617, fully absorbing the heat generated by the end cover 2 and the electrolytic cell. The heated cooling water is finally discharged through the water outlet pipe 68 on the end cover 2, realizing continuous liquid cooling heat dissipation. The drive shaft at the other end of the drive motor 611 synchronously drives the air inlet vane 613 to rotate. The inclined air inlet vane 613 guides the air to impact the mounting cover 64 at high speed, carrying away the heat from the surface of the mounting cover 64. At the same time, the diffuser vane 615 on the positioning ring 614 further guides the airflow to the terminal 3 area, focusing on heat dissipation for the terminal 3 operating under high load, and preventing the terminal 3 from overheating and affecting its conductivity. The system coordinates and operates stably. The liquid cooling and air cooling systems work together to precisely control the temperature of the electrolytic cell and key components, ensuring stable and efficient electrolysis under high current density operating conditions. At the same time, it avoids equipment damage and efficiency reduction due to overheating. The observation window 72 on the water tank 71 can monitor the water level in real time, and the tank opening 77 facilitates regular cleaning and maintenance, ensuring the long-term reliable operation of the heat dissipation system.

[0035] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high current density hydrogen generation apparatus using alkaline electrolysis of water, comprising an alkaline water electrolysis cell (1), characterized in that: Both sides of the alkaline water electrolysis cell (1) are fixedly connected to end caps (2), and terminals (3) are installed on both sides of the two end caps (2). A conduit (4) is installed on the lower surface of the alkaline water electrolysis cell (1), and a gas pipe (5) is installed on the upper surface of the alkaline water electrolysis cell (1). A heat dissipation assembly (6) is provided on one side of the end cap (2). The heat dissipation assembly (6) includes a mounting groove (61). The mounting groove (61) is located on the side of the end cap (2) away from the alkaline water electrolysis cell (1). A mounting ring (62) is fixedly connected to the surface of the end cap (2). A mounting cover (64) is threaded on the mounting ring (62). An assembly frame (65) is installed on the side of the mounting cover (64) away from the end cap (2). A drive motor (611) is installed on the assembly frame (65). One of the drive ends of the drive motor (611) is rotatably connected to the inner wall of the mounting cover (64) and extends into the mounting groove (61). A guide vane (610) is fixedly connected to the surface of the drive end of the drive motor (611) in the mounting groove (61). A guide shield (66) is fixedly connected to the surface of the end cover (2). A collection groove (617) is opened inside the guide shield (66). A flow channel (63) is opened inside the end cover (2). The two ends of the flow channel (63) are respectively connected to the mounting groove (61) and the collection groove (617). A water outlet pipe (68) is installed on the upper surface of the end cover (2). A water supply pipe (67) is installed on one side of the mounting cover (64). An auxiliary component (7) for supplying cooling water is installed on the upper surface of the guide shield (66).

2. The high current density hydrogen generation apparatus using alkaline electrolysis of water according to claim 1, characterized in that: The other drive end of the drive motor (611) passes through the assembly frame (65) and is fixedly connected to the positioning head (612). Several circumferential array of air inlet blades (613) are installed on the side of the positioning head (612). The air inlet blades (613) are inclined. A positioning ring (614) is installed at the end of the air inlet blades (613) away from the positioning head (612) to guide air to impact the mounting cover (64).

3. The high current density hydrogen generation apparatus from alkaline electrolysis of water according to claim 2, characterized in that: The positioning ring (614) has a plurality of circumferentially arrayed diffusers (615) installed on the side near the mounting cover (64). The diffusers (615) are inclined and are used to guide the air impacting the mounting cover (64) to the terminal (3).

4. The high current density hydrogen generation apparatus from alkaline electrolysis of water according to claim 3, characterized in that: A stabilizing ring (616) is installed at the end of the diffuser (615) away from the positioning ring (614).

5. The high current density hydrogen generation apparatus from alkaline electrolysis of water according to claim 1, characterized in that: The outlet pipe (68) is equipped with a first connector (69) at the end away from the mounting cover (64) for discharging cooling water that has absorbed heat.

6. The high current density hydrogen generation apparatus from alkaline electrolysis of water according to claim 1, characterized in that: The auxiliary component (7) includes a water tank (71) located directly above the end cap (2). The end of the water supply pipe (67) away from the mounting cover (64) is connected to the lower surface of the water tank (71). The upper surface of the water tank (71) is equipped with an inlet pipe (74).

7. The high current density hydrogen generation apparatus from alkaline electrolysis of water according to claim 6, characterized in that: The water inlet pipe (74) is equipped with a second connector (75) at the end away from the water tank (71) for connecting to the water supply pipe.

8. The high current density hydrogen generation apparatus from alkaline electrolysis of water according to claim 6, characterized in that: The surface of the water tank (71) is equipped with an observation window (72), which is vertically arranged and used to observe the water level inside the water tank (71).

9. The high current density hydrogen generation apparatus from alkaline electrolysis of water according to claim 6, characterized in that: Both sides of the water tank (71) are fixedly connected to support rods (73), and the ends of the two support rods (73) away from the water tank (71) are fixedly connected to the surface of the guide shroud (66).

10. The high current density hydrogen generation apparatus from alkaline electrolysis of water according to claim 6, characterized in that: The upper surface of the water tank (71) is equipped with a tank opening (77), which is used to clean the inside of the water tank (71). A cover (76) is threaded onto the tank opening (77).

Images