Hydrogen transmission device for hydrogen production by hydrolysis

Abstract

The utility model discloses a hydrogen transmission device for hydrolysis hydrogen production. The hydrogen transmission device comprises a buffer tank, a condenser, a water collector, a drying pipe and a water tank which are arranged in a shell, the two ends of the buffer tank are connected with an air inlet pipe and an air outlet pipe respectively, the air inlet end of the air inlet pipe is connected with an air pipe I through an electromagnetic valve I, the air outlet pipe is connected with the condenser, the condenser, the water collector and the drying pipe are sequentially connected through connecting air pipes, and the air outlet end of the drying pipe is connected with an air pipe II; the air outlet pipe is connected with a second electromagnetic valve, and the second air pipe is connected with a fourth electromagnetic valve. A drainage connector is formed in the bottom of the buffer tank and connected with the water tank through a first water pipe; the water outlet end of the bottom of the water collector is connected with the water tank through a second water pipe, and a third electromagnetic valve is arranged on the second water pipe. The device has the advantages that prepared hydrogen is efficiently and conveniently conveyed and treated, the safety performance of the device is good, the device is stably installed, the structure is compact, the size is small, and convenience is good.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen production technology by water electrolysis, specifically to a hydrogen transmission device for hydrogen production by water electrolysis. Background Technology

[0002] Hydrogen energy, as a zero-carbon emission secondary energy carrier, boasts an energy density as high as 142 MJ / kg and is considered one of the most promising clean energy solutions. Using hydrogen-oxygen fuel cells, the chemical energy of hydrogen can be directly converted into electrical energy through an electrochemical reaction, with a theoretical energy conversion efficiency exceeding 95%, and the only byproduct is high-purity water, offering significant environmental advantages. However, existing water electrolysis hydrogen production systems (such as PEM electrolyzers) suffer from technical bottlenecks, such as excessively high temperatures (70-90℃) and humidity saturation (100% relative humidity). Directly inputting this hydrogen into fuel cells would flood the proton exchange membrane, affecting system energy efficiency and operational stability.

[0003] Current hydrogen energy systems mostly adopt a split architecture, with significant spatial and temporal separation between hydrogen production, storage, transportation, and power generation. Mainstream hydrogen transmission devices focus on the safe transport of high-pressure storage tanks, which can achieve stable hydrogen supply. However, due to the need for complex purification and drying pretreatment, they suffer from problems such as increased volume, slow response, difficulty in meeting the integrated requirements of real-time hydrogen production and power supply systems, and poor convenience. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a hydrogen transmission device for hydrogen production via water electrolysis. This device buffers, rapidly condenses, and dries the hydrogen produced by the hydrogen production equipment, and then efficiently and conveniently transmits the produced hydrogen without interference from external factors. The processed hydrogen can be directly used for hydrogen storage or directly supplied to fuel cells. The device has good safety performance, modular and separate internal components, stable installation, compact structure, small size, and good convenience, effectively solving the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydrogen transmission device for hydrogen production by water electrolysis, comprising a hydrogen transmission unit disposed within a housing, the hydrogen transmission unit comprising a buffer tank, a condenser, a water collector, a drying pipe, and a water tank; the buffer tank is provided with an inlet port and an outlet port at both ends, with the inlet port being higher than the outlet port; the inlet port is connected to an inlet pipe, the inlet end of the inlet pipe is connected to a solenoid valve, the inlet valve port of the solenoid valve is connected to a gas pipe, and the outlet port is connected to an outlet... The gas pipe is connected to the condenser. The condenser, water collector, and drying pipe are connected in sequence through the connecting gas pipe, and the outlet end of the drying pipe is connected to the second gas pipe. Both the first and second gas pipes extend to the outside of the outer shell. The outlet pipe is connected to the second solenoid valve, and the second solenoid valve is connected to the fourth solenoid valve. The bottom of the buffer tank has a drain port, which is connected to the water tank through the first water pipe. The first water pipe is equipped with the fifth solenoid valve. The outlet end of the bottom of the water collector is connected to the water tank through the second water pipe, and the second water pipe is equipped with the third solenoid valve.

[0006] Furthermore, the first solenoid valve is a three-way solenoid valve, and the other port of the first solenoid valve is connected to an exhaust pipe.

[0007] Furthermore, the top of the buffer tank is provided with a safety valve connection hole and a pressure measuring hole. A pressure transmitter is installed in the pressure measuring hole, and a safety valve is connected to the safety valve connection hole through a connecting gas pipe. The outer shell is provided with an inwardly recessed receiving groove, and the safety valve is located in the receiving groove. The solenoid valve is also provided with a temperature sensor for detecting the temperature of hydrogen output from the gas pipe.

[0008] Furthermore, the hydrogen delivery unit also includes a digital control display screen and an auxiliary power supply. The digital control display screen is fixedly mounted on one side wall of the housing, and the auxiliary power supply is located inside the housing.

[0009] Furthermore, the buffer tank has a cylindrical tank structure and is placed flat on the bottom plate of the outer shell. The bottom plate of the outer shell is provided with an arc-shaped support platform for supporting the buffer tank, and the water tank is also set on the bottom plate of the outer shell. The bottom plate of the outer shell is also provided with an inverted L-shaped support platform, and the condenser is placed on the platform of the L-shaped support platform. An intermediate support platform is also provided between the inner walls of the outer shell. The intermediate support platform is located above the L-shaped support platform. An arc-shaped support seat is provided on the intermediate support platform, and the drying tube is set on the arc-shaped support seat. An annular bracket is provided on the intermediate support platform. The water collector is placed vertically in the annular bracket, and a notch is opened on the circumferential side wall of the annular bracket. A power supply placement platform is provided at one of the top corners of the outer shell, and the auxiliary power supply is set on the power supply placement platform. A removable heat dissipation window is provided on the side wall of the outer shell corresponding to the condenser.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This hydrogen transmission device for hydrogen production by water electrolysis, consisting of a buffer tank, condenser, water collector, drying pipe, and water tank, buffers, rapidly condenses, and dries the hydrogen produced by the hydrogen production equipment, and efficiently and conveniently transmits the produced hydrogen without being affected by external factors. The processed hydrogen can be directly used for hydrogen storage or directly supplied to fuel cells. The buffer tank adopts a cylindrical container structure with a gradient pressure reduction design to avoid the risk of spontaneous combustion caused by adiabatic compression. The safety performance of the equipment is further enhanced by safety valves and pressure transmitters. The internal equipment of the hydrogen transmission device is modularly separated, the equipment is stably installed, compact in structure, small in size, and convenient. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a rear view of the present invention;

[0013] Figure 3 This is a schematic diagram of the hydrogen delivery unit structure of this utility model;

[0014] Figure 4 This is an isometric view of the hydrogen transmission unit of this utility model;

[0015] Figure 5 This is a schematic diagram of the buffer tank structure of this utility model;

[0016] Figure 6 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0017] Figure 7 This is a side sectional view of the present invention.

[0018] In the diagram: 1. Outer shell; 101. Arc-shaped support platform; 102. L-shaped support platform; 103. Intermediate support platform; 104. Arc-shaped support base; 105. Ring-shaped bracket; 106. Power supply placement platform; 107. Heat dissipation window; 108. Receiving groove; 2. Buffer tank; 21. Air inlet; 22. Air outlet; 23. Safety valve connection hole; 24. Pressure measuring hole; 25. Drainage interface; 3. Condenser; 4. Water collector; 5. Drying pipe; 6. Water tank; 7. Air pipe one; 8. Solenoid valve one; 9. Air inlet pipe; 10. Exhaust pipe; 11. Air outlet pipe; 12. Solenoid valve two; 13. Solenoid valve three; 14. Air pipe two; 15. Solenoid valve four; 16. Safety valve; 17. CNC display screen; 18. Auxiliary power supply; 19. Temperature sensor; 20. Pressure transmitter. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figure 1-7 This utility model provides a technical solution: a hydrogen transmission device for hydrogen production by water electrolysis, comprising a hydrogen transmission unit housed within a housing 1, the hydrogen transmission unit including a buffer tank 2, a condenser 3, a water collector 4, a drying pipe 5, and a water tank 6; the buffer tank 2 has an inlet port 21 and an outlet port 22 at its two ends, with the inlet port 21 being higher than the outlet port 22; the inlet port 21 is connected to an inlet pipe 9, and the inlet end of the inlet pipe 9 is connected to a solenoid valve 8, which is a three-way solenoid valve; the inlet port of the solenoid valve 8 is connected to a gas pipe 7, and the other port of the solenoid valve 8 is connected to an exhaust pipe 10; the outlet port 22 is connected to the outlet pipe 11. The condenser 3 is connected, and the condenser 3, water collector 4, and drying tube 5 are connected in sequence through connecting gas pipes. The drying tube 5 is filled with molecular sieve-silica gel composite adsorbent to maintain the dryness of the outlet gas. The outlet end of the drying tube 5 is connected to the second gas pipe 14. Both the first gas pipe 7 and the second gas pipe 14 extend to the outside of the outer shell 1. The outlet pipe 11 is connected to the second solenoid valve 12, and the second gas pipe 14 is connected to the fourth solenoid valve 15. The bottom of the buffer tank 2 is provided with a drain port 25, which is connected to the water tank 6 through a first water pipe. The first water pipe is equipped with a fifth solenoid valve. The water outlet end of the bottom of the water collector 4 is connected to the water tank 6 through a second water pipe, and the second water pipe is equipped with a third solenoid valve 13.

[0021] The top of the buffer tank 2 is provided with a safety valve connection hole 23 and a pressure measuring hole 24. A pressure transmitter 20 is installed in the pressure measuring hole 24. The safety valve connection hole 23 is connected to a safety valve 16 through a connecting gas pipe. The outer shell 1 is provided with an inwardly recessed receiving groove 108, and the safety valve 16 is located in the receiving groove 108. The solenoid valve 15 is also provided with a temperature sensor 19 for detecting the temperature of hydrogen output from the gas pipe 14. The hydrogen transmission unit also includes a digital control display screen 17 and an auxiliary power supply 18. The digital control display screen 17 is fixedly installed on one side wall of the outer shell 1, and the auxiliary power supply 18 is located inside the outer shell 1.

[0022] Working principle:

[0023] Upon initial use, fill buffer tank 2 with water and connect gas pipe 7 to the external hydrogen production equipment. Open solenoid valve 8 and connect gas pipe 7 to inlet pipe 9. Neither gas pipe 7 nor inlet pipe 9 is connected to exhaust pipe 10. Close solenoid valve 12 and open solenoid valve 5. Hydrogen supplied by the hydrogen production equipment enters buffer tank 2 through gas pipe 7 and inlet pipe 9. The water in buffer tank 2 is drained into water tank 6 through water pipe 2 connected to drain port 25. This drainage method ensures the purity of the hydrogen. Then, close solenoid valve 5 and open solenoid valves 12 and 15. The hydrogen in buffer tank 2 flows to condenser 3 through outlet pipe 11. Condenser 3 cools the hydrogen and condenses the water vapor carried by the hydrogen into small water droplets. The cooled hydrogen flows into water collector 4, which separates the hydrogen from the water. Water collector 4 is equipped with a level sensor. When water level is reached in water collector 4... When the liquid level inside reaches the set value, solenoid valve 13 opens, draining the water in collector 4 into water tank 6. The water in water tank 6 can be used for hydrogen production equipment. The hydrogen discharged from collector 4 flows into drying pipe 5, where moisture is absorbed and the hydrogen is further dried. The dried hydrogen is supplied to the outside through gas pipe 14, where it can be supplied to external storage equipment or directly to fuel cells. Temperature sensor 19 detects the temperature of the hydrogen output from gas pipe 14, compares it with the reference set value through the control system on CNC display screen 17, and controls the opening of solenoid valve 15 and adjusts the fan power of condenser 3. Pressure transmitter 20 detects the pressure inside buffer tank 2, and controls the opening of solenoid valve 8 through CNC display screen 17. When the pressure inside buffer tank 2 reaches a certain value, the pressure is released through safety valve 16 to improve equipment safety performance.

[0024] Before secondary or multiple uses, open solenoid valve 8 and connect gas pipe 7 to exhaust pipe 10. Neither gas pipe 7 nor exhaust pipe 10 should be connected to inlet pipe 9. When the hydrogen production equipment has just produced hydrogen, exhaust gas through gas pipe 7 and exhaust pipe 10 to ensure the purity of the hydrogen entering buffer tank 2. After exhausting for a period of time, connect gas pipe 7 to inlet pipe 9. Neither gas pipe 7 nor inlet pipe 9 should be connected to exhaust pipe 10. Then, put the hydrogen delivery device into normal use.

[0025] Furthermore, the buffer tank 2 has a cylindrical tank structure and is placed flat on the bottom plate of the outer shell 1. The bottom plate of the outer shell 1 is provided with an arc-shaped support platform 101 for supporting the buffer tank 2, and the water tank 6 is also set on the bottom plate of the outer shell 1. The bottom plate of the outer shell 1 is also provided with an inverted L-shaped support platform 102, and the condenser 3 is placed on the platform of the L-shaped support platform 102. An intermediate support platform 103 is also provided between the inner walls of opposite sides of the outer shell 1. The intermediate support platform 103 is located above the L-shaped support platform 102. An arc-shaped support seat 104 is provided on the intermediate support platform 103, and the drying tube 5 is set on the arc-shaped support seat 104. An annular card seat 105 is provided on the intermediate support platform 103, and the water collector 4 is vertically positioned. The device is placed inside the annular mounting base 105, and a notch is opened on the circumferential side wall of the annular mounting base 105; a power supply platform 106 is provided at one of the top corners of the outer shell 1, and an auxiliary power supply 18 is set on the power supply platform 106; a detachable heat dissipation window 107 is provided on one side wall of the outer shell 1 corresponding to the condenser 3; the buffer tank 2, condenser 3, water collector 4, drying pipe 5 and water tank 6 are modularly separated and set up by the arc-shaped support platform 101, L-shaped support platform 102, intermediate support platform 103, arc-shaped support base 104, annular mounting base 105 and power supply platform 106 provided inside the outer shell 1, so that the internal equipment of the hydrogen transmission device is stable, compact, small in size and convenient.

[0026] The hydrogen transmission device for hydrogen production via water electrolysis disclosed in this embodiment buffers, rapidly condenses, and dries the hydrogen produced by the hydrogen production equipment through a hydrogen transmission device composed of a buffer tank 2, a condenser 3, a water collector 4, a drying pipe 5, and a water tank 6. This allows for efficient and convenient transmission of the produced hydrogen, unaffected by external factors. The processed hydrogen can be directly used for hydrogen storage or directly supplied to fuel cells. The buffer tank 2 uses a cylindrical container structure with a gradient pressure reduction design to avoid the risk of spontaneous combustion caused by adiabatic compression. Safety valve 16 and pressure transmitter 20 further enhance the safety performance of the device. The internal equipment of the hydrogen transmission device is modularly separated, resulting in stable installation, a compact structure, small size, and good convenience.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen transmission device for hydrogen production by water electrolysis, comprising a hydrogen transmission unit disposed within a housing, characterized in that: The hydrogen delivery unit includes a buffer tank, a condenser, a water collector, a drying pipe, and a water tank. The buffer tank has an inlet and an outlet at both ends, with the inlet higher than the outlet. An inlet pipe connects to the inlet, and a solenoid valve is connected to the inlet end of the inlet pipe. A gas pipe connects to the inlet port of the solenoid valve. The outlet is connected to the condenser via an outlet pipe. The condenser, water collector, and drying pipe are connected sequentially via connecting gas pipes, and a gas pipe connects to the outlet end of the drying pipe. Both gas pipes extend to the outside of the outer casing. A solenoid valve is connected to the outlet pipe, and a solenoid valve is connected to the gas pipe. A drain port is located at the bottom of the buffer tank, connected to the water tank via a water pipe. A solenoid valve is installed on the water pipe. The outlet end of the water collector is connected to the water tank via a water pipe, and a solenoid valve is installed on the water pipe.

2. The hydrogen transmission device for hydrogen production by water electrolysis according to claim 1, characterized in that: The first solenoid valve is a three-way solenoid valve, and the other valve port of the first solenoid valve is connected to an exhaust pipe.

3. A hydrogen transmission device for hydrogen production by water electrolysis according to claim 1, characterized in that: The top of the buffer tank is provided with a safety valve connection hole and a pressure measuring hole. A pressure transmitter is installed in the pressure measuring hole, and a safety valve is connected to the safety valve connection hole through a connecting gas pipe. The outer shell is provided with an inwardly recessed receiving groove, and the safety valve is located in the receiving groove. The solenoid valve is also provided with a temperature sensor for detecting the temperature of hydrogen output from the gas pipe.

4. A hydrogen transmission device for hydrogen production by water electrolysis according to claim 1, characterized in that: The hydrogen delivery unit also includes a digital control display screen and an auxiliary power supply. The digital control display screen is fixedly mounted on one side wall of the housing, and the auxiliary power supply is located inside the housing.

5. A hydrogen transmission device for hydrogen production by water electrolysis according to claim 4, characterized in that: The buffer tank is a cylindrical tank structure placed flat on the bottom plate of the outer shell. An arc-shaped support platform is provided on the bottom plate of the outer shell to support the buffer tank, and the water tank is also located on the bottom plate of the outer shell. An inverted L-shaped support platform is also provided on the bottom plate of the outer shell, and the condenser is placed on the platform of the L-shaped support platform. An intermediate support platform is provided between two opposing inner walls of the outer shell, located above the L-shaped support platform. An arc-shaped support seat is provided on the intermediate support platform, and the drying tube is placed on the arc-shaped support seat. An annular bracket is provided on the intermediate support platform, and the water collector is placed vertically inside the annular bracket. A notch is opened on the circumferential side wall of the annular bracket. A power supply placement platform is provided at one top corner of the outer shell, and an auxiliary power supply is placed on the power supply placement platform. A removable heat dissipation window is provided on the side wall of the outer shell corresponding to the condenser.

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