A hydrogen gas hydrogen filling device

Abstract

The utility model relates to a hydrogenation technical field, especially a kind of hydrogenation charging equipment of hydrogen gas. Including hydrogenation box and charging box, the bottom of hydrogenation box is equipped with compressor, the side of hydrogenation box is equipped with first water chiller unit and second water chiller unit, first water chiller unit is connected with first circulating water pipeline, second water chiller unit is connected with the second circulating water pipeline located above first circulating water pipeline, high-pressure hydrogen storage bottle group is connected with hydrogenation gun by pipeline;Hydrogen fuel cell and charging pile are equipped in charging box, hydrogen fuel cell is connected with the gas outlet of long tank trailer by pipeline, high-pressure hydrogen storage bottle group is connected with hydrogen fuel cell by pipeline. Realize the reasonable control of the compressor inlet and exhaust temperature in hydrogenation station, realize the charging function of electric car, overall design is reasonable, structure is compact, hydrogenation and charging are integrated, make full use of the energy and space advantage of hydrogenation station, and play a good supplementary role to charging facility.

Description

Technical fields:

[0001] This utility model relates to the field of gaseous hydrogen refueling technology, and in particular to a gaseous hydrogen refueling and charging device. Background technology:

[0002] Currently, in existing hydrogen refueling skid-mounted stations, the hydrogen in the long-tank trailer needs to be pressurized by a compressor before refueling to improve refueling efficiency. Because the hydrogen temperature inside the long-tank trailer is high, the compressor also generates a lot of heat during operation, which can cause the compressor to overheat and become unable to operate for extended periods. Furthermore, the high-pressure hydrogen discharged from the compressor also needs to be cooled before refueling the vehicle. Therefore, it is necessary to reasonably control the intake and exhaust temperatures of the compressor. In addition, current hydrogen refueling skid-mounted stations generally only have hydrogen refueling capabilities, which is relatively limited. Given the small market share of hydrogen fuel cell vehicles compared to the large market share of electric vehicles, charging infrastructure is currently severely insufficient. If hydrogen could be used to generate electricity at the refueling skid-mounted station and then used to charge electric vehicles via charging stations, it would effectively supplement the charging infrastructure and fully utilize the energy and space advantages of the refueling skid-mounted station. However, both hydrogen refueling and fuel cell power generation involve a large number of functional components, and there is currently no good solution to the above problems regarding how to rationally integrate these components into a single unit.

[0003] In summary, the aforementioned problems in the process of hydrogenation of gaseous hydrogen have become technical challenges that urgently need to be addressed in the industry. Utility model content:

[0004] To overcome the shortcomings of existing technologies, this utility model provides a gaseous hydrogen refueling and charging device, which solves the problem of compressor intake and exhaust temperature control in hydrogen refueling skid-mounted stations, the problem of limited space utilization and single function of previous hydrogen refueling skid-mounted stations, and the problem of integrating hydrogen refueling and fuel cell functional components into one unit.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A hydrogen refueling and charging device includes a refueling tank and a charging tank. A compressor is installed at the bottom of the refueling tank. A first chiller unit and a second chiller unit are located on one side of the refueling tank. The first chiller unit is connected to a first circulating water pipeline located on one side of the compressor. The second chiller unit is connected to a second circulating water pipeline located above the first circulating water pipeline. An air inlet pipeline is located on one side of the refueling tank and is connected to the air outlet of a long tank trailer. The air inlet pipeline is equipped with an air inlet check valve and an air inlet filter. The air inlet pipeline passes through the first... One end of the circulating water pipeline is connected to the air inlet of the compressor, and the air outlet of the compressor is connected to the exhaust pipeline. The exhaust pipeline passes through the second circulating water pipeline and the other end is connected to the high-pressure hydrogen storage cylinder group installed on the top of the hydrogen refueling tank via an exhaust check valve and an exhaust filter. The high-pressure hydrogen storage cylinder group is connected to the hydrogen refueling gun via a pipeline. The charging tank is equipped with a hydrogen fuel cell and a charging pile. The hydrogen fuel cell is connected to the air outlet of the long tank trailer via a pipeline, and the high-pressure hydrogen storage cylinder group is connected to the hydrogen fuel cell via a valve.

[0007] The hydrogenation tank is equipped with a vertical plate. The first and second circulating water pipes are installed on one side of the vertical plate, and the air inlet pipe and exhaust pipe are installed on the other side of the vertical plate.

[0008] The exhaust pipe is connected to the intake pipe via a return pipe, a return switch valve, and a return check valve.

[0009] Solar panels are installed on the top of the hydrogen refueling tank and the charging tank.

[0010] The present invention adopts the above solution and has the following advantages:

[0011] By incorporating a first chiller and a first circulating water pipeline within the hydrogen refueling tank, the hydrogen from the long-tank trailer enters the intake pipeline, where it is cooled before entering the compressor, thus protecting the compressor. Similarly, by incorporating a second chiller and a second circulating water pipeline within the hydrogen refueling tank, the hydrogen from the exhaust pipeline is cooled before entering the refueling nozzle, meeting the vehicle's temperature requirements for hydrogen and achieving reasonable control of the compressor's intake and exhaust temperatures in the hydrogen refueling skid-mounted station. Furthermore, by installing a hydrogen fuel cell and a charging station within the charging tank, the hydrogen from the long-tank trailer can also be supplied to the hydrogen fuel cell, and the electricity generated by the fuel cell can be supplied to the charging station, enabling the charging of electric vehicles. This invention features a reasonable overall design and compact structure, integrating hydrogen refueling and charging into one unit, fully utilizing the energy and space advantages of the hydrogen refueling skid-mounted station, and effectively supplementing charging facilities. Attached image description:

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0014] Figure 3 This is a front view of the internal structure of the hydrogenation tank of this utility model.

[0015] Figure 4 This is a rear view of the internal structure of the hydrogenation tank of this utility model.

[0016] In the diagram, 1. Hydrogen refueling tank, 2. Charging tank, 3. Compressor, 4. First chiller unit, 5. Second chiller unit, 6. First circulating water pipeline, 7. Second circulating water pipeline, 8. Inlet pipeline, 9. Inlet check valve, 10. Inlet filter, 11. Exhaust pipeline, 12. Exhaust check valve, 13. Exhaust filter, 14. High-pressure hydrogen storage tank assembly, 15. Hydrogen refueling nozzle, 16. Hydrogen fuel cell, 17. Charging pile, 18. Vertical plate, 19. Return pipeline, 20. Return switch valve, 21. Return check valve, 22. Solar panel. Detailed implementation method:

[0017] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0018] like Figure 1-4 As shown, a hydrogen refueling and charging device includes a refueling tank 1 and a charging tank 2. A compressor 3 is installed at the bottom of the refueling tank 1. A first chiller unit 4 and a second chiller unit 5 are located on one side of the refueling tank 1. The first chiller unit 4 is connected to a first circulating water pipe 6 located on one side of the compressor 3. The second chiller unit 5 is connected to a second circulating water pipe 7 located above the first circulating water pipe 6. Both the first and second circulating water pipes 6 and 7 are arranged in an S-shape to improve cooling efficiency. An air inlet pipe 8 is located on one side of the refueling tank 1 and is connected to the air outlet of a long tank trailer. The air inlet pipe 8 is equipped with an air inlet check valve 9 and an air inlet valve. The filter 10 and the air inlet pipe 8 pass through the first circulating water pipe 6 and are connected at the other end to the air inlet of the compressor 3. The air outlet of the compressor 3 is connected to the exhaust pipe 11. The exhaust pipe 11 passes through the second circulating water pipe 7 and is connected at the other end to the high-pressure hydrogen storage cylinder group 14 installed on the top of the hydrogen refueling tank 1 via the exhaust one-way valve 12 and the exhaust filter 13. The high-pressure hydrogen storage cylinder group 14 is connected to the hydrogen refueling gun 15 via a pipe. The charging tank 2 is equipped with a hydrogen fuel cell 16 and a charging pile 17. The hydrogen fuel cell 16 is connected to the air outlet of the long tank trailer via a pipe. The high-pressure hydrogen storage cylinder group 14 is connected to the hydrogen fuel cell 16 via a valve via a pipe.

[0019] The hydrogenation tank 1 is equipped with a vertical plate 18. The first circulating water pipe 6 and the second circulating water pipe 7 are installed on one side of the vertical plate 18, and the air inlet pipe 8 and the exhaust pipe 11 are installed on the other side of the vertical plate 18. The air inlet check valve 9 and the air inlet filter 10, the exhaust check valve 12 and the exhaust filter 13 can also be installed on the vertical plate 18.

[0020] The exhaust pipe 11 is connected to the intake pipe 8 via the return pipe 19, return switch valve 20, and return check valve 21. The return pipe 19, return switch valve 20, and return check valve 21 can be installed on the vertical plate 18. When there is insufficient hydrogen in the intake pipe 8, the return switch valve 20 opens, and some of the hydrogen in the exhaust pipe 11 will be replenished into the intake pipe 8 via the return pipe 19 and return check valve 21, thereby ensuring the intake amount of hydrogen.

[0021] The top of the hydrogen refueling tank 1 and the charging tank 2 are equipped with solar panels 22. After generating electricity, the solar panels 22 can provide power for the start-up of components such as the compressor 3 and the hydrogen fuel cell 16, thus enabling off-grid hydrogen refueling and charging.

[0022] Working principle:

[0023] During operation, one branch of the hydrogen from the long tank trailer can supply hydrogen to the hydrogen fuel cell 16. The hydrogen required for the operation of the hydrogen fuel cell 16 is mainly supplied by the long tank trailer. When the hydrogen in the long tank trailer is insufficient, hydrogen from the high-pressure hydrogen storage cylinder group 14 can be supplied to the hydrogen fuel cell 16 through a valve. The electrical energy generated by the hydrogen fuel cell 16 during operation can be supplied to the charging pile 17 to charge the electric vehicle. Another branch of the hydrogen from the long tank trailer can enter the intake pipe 8. After being filtered by the intake one-way valve 9 and the intake filter 10, the hydrogen travels forward in the intake pipe 8. The cooling water in the first circulating water pipe 6 can cool the hydrogen in the intake pipe 8 to meet the intake temperature requirements of the compressor 3. The hydrogen gas then enters compressor 3, which protects compressor 3. Compressor 3 pressurizes the hydrogen, and the discharged high-pressure hydrogen enters exhaust pipe 11. As the hydrogen travels forward in exhaust pipe 11, the cooling water in the second circulating water pipe 7 cools the hydrogen in exhaust pipe 11 to meet the temperature requirements for hydrogen refueling in vehicles. After being filtered by exhaust one-way valve 12 and exhaust filter 13, a portion of the hydrogen in exhaust pipe 11 enters high-pressure hydrogen storage cylinder group 14 for storage, which plays a role in stabilizing the pressure. When the hydrogen in the long tank trailer is insufficient, it can be used as backup hydrogen for use in hydrogen refueling gun 15. Finally, the hydrogen in exhaust pipe 11 is used to refuel the vehicle through hydrogen refueling gun 15.

[0024] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0025] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A gaseous hydrogen refueling and charging device, characterized in that: The system includes a hydrogen refueling tank and a charging tank. A compressor is installed at the bottom of the hydrogen refueling tank. A first chiller unit and a second chiller unit are located on one side of the tank. The first chiller unit is connected to a first circulating water pipeline located on the side of the compressor, and the second chiller unit is connected to a second circulating water pipeline located above the first circulating water pipeline. An air inlet pipeline is located on one side of the tank, connecting to the air outlet of a long tank trailer. The air inlet pipeline is equipped with an air inlet check valve and an air inlet filter. After passing through the first circulating water pipeline, the other end of the air inlet pipeline connects to the air inlet of the compressor. The air outlet of the compressor connects to an exhaust pipeline. After passing through the second circulating water pipeline, the other end of the exhaust pipeline connects to a high-pressure hydrogen storage cylinder assembly installed on the top of the hydrogen refueling tank via an exhaust check valve and an exhaust filter. The high-pressure hydrogen storage cylinder assembly is connected to the hydrogen refueling nozzle via a pipeline. The charging tank contains a hydrogen fuel cell and a charging pile. The hydrogen fuel cell is connected to the air outlet of the long tank trailer via a pipeline, and the high-pressure hydrogen storage cylinder assembly is connected to the hydrogen fuel cell via a pipeline and a valve.

2. The gaseous hydrogen refueling and charging device according to claim 1, characterized in that: The hydrogenation tank is equipped with a vertical plate. The first and second circulating water pipes are installed on one side of the vertical plate, and the air inlet pipe and exhaust pipe are installed on the other side of the vertical plate.

3. The gaseous hydrogen refueling and charging device according to claim 1, characterized in that: The exhaust pipe is connected to the intake pipe via a return pipe, a return switch valve, and a return check valve.

4. The gaseous hydrogen refueling and charging device according to claim 1, characterized in that: Solar panels are installed on the top of the hydrogen refueling tank and the charging tank.

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