Hydrogen storage and supply system and vehicle

Abstract

The utility model belongs to the technical field of hydrogen energy, and particularly relates to a hydrogen storage and supply system and a vehicle, the hydrogen storage and supply system comprises a hydrogen tank, a hydrogen reaction system, a liquid hydrogen storage device, a power pump, a dehydrogenation reactor and a gas-liquid separator; the hydrogen tank is communicated with the hydrogen reaction system; the liquid hydrogen storage device, the power pump and the dehydrogenation reactor are communicated in sequence; an inlet of the gas-liquid separator is communicated with an outlet of the dehydrogenation reactor, and a gas outlet of the gas-liquid separator is communicated with the hydrogen tank and the hydrogen reaction system; and the hydrogen tank is also communicated with the hydrogen reaction system. According to the hydrogen storage and supply system, the functions of liquid hydrogen supply and gas hydrogen supply are integrated, the hydrogen supply requirements of a vehicle under different working conditions can be met, and the hydrogen storage and supply system has high safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrogen energy, and in particular relates to a hydrogen storage and supply system and a vehicle. Background Art

[0002] Hydrogen fuel vehicles are vehicles that use hydrogen as energy, which have the advantages of low pollution and high energy conversion rate. At present, hydrogen supply and storage systems usually compress hydrogen to 35MPa to 70MPa and store it in high-pressure containers, using high-pressure gaseous hydrogen storage to provide hydrogen fuel for hydrogen fuel vehicles; although this high-pressure gaseous hydrogen storage mode can effectively store hydrogen, it has the problems of low safety and large space occupation. Utility Model Content

[0003] The utility model aims at the technical problems that the prior art adopts high-pressure gaseous hydrogen storage mode to provide hydrogen fuel for hydrogen fuel vehicles, such as low safety and large occupied space, and proposes a hydrogen storage and supply system and a vehicle.

[0004] In order to solve the above problems, the first embodiment of the utility model provides a hydrogen storage and supply system, including a hydrogen tank, a hydrogen reaction system, a liquid hydrogen storage device, a power pump, a dehydrogenation reactor and a gas-liquid separator; the hydrogen tank is connected to the hydrogen reaction system;

[0005] The liquid hydrogen storage device, the power pump and the dehydrogenation reactor are connected in sequence; the inlet of the gas-liquid separator is connected to the outlet of the dehydrogenation reactor, and the gas outlet of the gas-liquid separator is connected to the hydrogen tank and the hydrogen reaction system; the hydrogen tank is also connected to the hydrogen reaction system.

[0006] Optionally, the gas outlet of the gas-liquid separator is connected to the hydrogen reaction system through a first pipeline, and the hydrogen tank is connected to the first pipeline;

[0007] The hydrogen storage and supply system further includes a circulation pump, the inlet of the circulation pump is connected to the hydrogen outlet of the hydrogen reaction system, and the outlet of the circulation pump is connected to the first pipeline.

[0008] Optionally, the hydrogen storage and supply system further includes an organic matter storage tank, and the liquid outlet of the gas-liquid separator is connected to the organic matter storage tank.

[0009] Optionally, the hydrogen storage and supply system also includes a temperature controller and a temperature sensor; the temperature sensor is installed on the dehydrogenation reactor and is used to detect the temperature of the liquid hydrogen in the dehydrogenation reactor, and the temperature controller is installed on the dehydrogenation reactor and is used to adjust the temperature of the liquid hydrogen in the dehydrogenation reactor.

[0010] Optionally, the hydrogen storage and supply system further includes a pressure controller and a pressure sensor; the dehydrogenation reactor is connected to the inlet of the gas-liquid separator via a second pipeline; the pressure sensor and the pressure controller are both arranged on the second pipeline.

[0011] Optionally, the gas outlet of the gas-liquid separator is connected to the hydrogen reaction system through a first pipeline, and the hydrogen tank is connected to the first pipeline;

[0012] The hydrogen storage and supply system further includes a flow meter and a first flow controller, and the flow meter and the first flow controller are both installed on the first pipeline.

[0013] Optionally, the hydrogen storage and supply system further includes a filter buffer assembly, the gas outlet of the gas-liquid separator is connected to the hydrogen reaction system and the hydrogen tank through the filter buffer assembly, and the hydrogen tank is connected to the hydrogen reaction system through the filter buffer assembly.

[0014] Optionally, the hydrogen storage and supply system also includes a solenoid valve and a second flow controller electrically connected to the solenoid valve, and the power pump is connected to the dehydrogenation reactor through the solenoid valve; the second flow controller is used to adjust the opening of the power pump through the solenoid valve to control the flow of liquid hydrogen input into the dehydrogenation reactor.

[0015] Optionally, the hydrogen storage and supply system further comprises a heat exchange device for transferring heat from the hydrogen reaction system to the dehydrogenation reactor.

[0016] Another embodiment of the utility model further provides a vehicle, comprising the above-mentioned hydrogen storage and supply system.

[0017] In the utility model, the liquid hydrogen storage device is connected to the hydrogen tank and the hydrogen reaction system through the power pump, the dehydrogenation reactor and the gas-liquid separator in sequence, so that the liquid hydrogen raw material output by the liquid hydrogen storage device is converted into gaseous hydrogen through the dehydrogenation reactor and the gas-liquid separator, and the gas outlet of the gas-liquid separator can transport the gaseous hydrogen to the hydrogen reaction system or the hydrogen tank; the hydrogen tank is also connected to the hydrogen reaction system, so that the hydrogen tank can input the gaseous hydrogen stored therein into the hydrogen reaction system.

[0018] When the vehicle is cold started or the instantaneous hydrogen consumption demand is large, the hydrogen tank can input the gaseous hydrogen stored therein into the hydrogen reaction system, which can achieve timely response of the hydrogen reaction system; when the hydrogen reaction system is in stable operation, the liquid hydrogen raw material output by the liquid hydrogen storage device is preferentially converted into gaseous hydrogen after a series of reactions, and the gaseous gas is input into the hydrogen reaction system. The hydrogen storage and supply system integrates the functions of liquid hydrogen supply and gaseous hydrogen supply, which can meet the hydrogen supply needs of the vehicle under different working conditions, and the hydrogen storage and supply system has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 This is a structural schematic diagram of a hydrogen storage and supply system provided in one embodiment of the utility model installed on the floor.

[0021] The reference numerals in the specification are as follows:

[0022] 1. Liquid hydrogen storage device; 2. Power pump; 3. Dehydrogenation reactor; 4. Gas-liquid separator; 5. Hydrogen tank; 6. Hydrogen reaction system; 7. Circulation pump; 8. Organic matter storage tank; 9. Temperature controller; 11. Temperature sensor; 12. Pressure controller; 13. First flow controller; 14. Filter buffer assembly; 15. Second flow controller; 16. Solenoid valve. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations of the utility model.

[0025] like Figure 1 As shown, a hydrogen storage and supply system provided by the first embodiment of the utility model comprises a hydrogen tank 5, a hydrogen reaction system 6, a liquid hydrogen storage device 1, a power pump 2, a dehydrogenation reactor 3 and a gas-liquid separator 4; the hydrogen tank 5 is connected to the hydrogen reaction system 6;

[0026] The liquid hydrogen storage device 1, the power pump 2 and the dehydrogenation reactor 3 are connected in sequence; the inlet of the gas-liquid separator 4 is connected to the outlet of the dehydrogenation reactor 3, and the gas outlet of the gas-liquid separator 4 is connected to the hydrogen tank 5 and the hydrogen reaction system 6; the hydrogen tank 5 is also connected to the hydrogen reaction system 6. It can be understood that the liquid hydrogen storage device 1, the power pump 2, the dehydrogenation reactor 3, the gas-liquid separator 4, the hydrogen tank 5 and the hydrogen reaction system 6 are connected through pipelines, the inlet of the power pump 2 is connected to the outlet of the liquid hydrogen storage device 1, the outlet of the power pump is connected to the inlet of the dehydrogenation reactor 3, and the outlet of the dehydrogenation reactor 3 is connected to the outlet of the dehydrogenation reactor 3.

[0027] To further illustrate, the liquid hydrogen storage device 1 stores liquid hydrogen raw materials; the dehydrogenation reactor 3 is filled with a catalyst, which promotes the reaction of the liquid hydrogen raw materials flowing into it under the action of heating and temperature control facilities to produce hydrogen and other products; the gas-liquid separator 4 can achieve the function of gas-liquid separation, so that the gas-liquid separator 4 can input gaseous hydrogen into the hydrogen reaction system 6 and / or the hydrogen tank 5; the hydrogen tank 5 can store gaseous hydrogen; the hydrogen reaction system 6 includes but is not limited to hydrogen fuel cells, hydrogen internal combustion engines, etc.

[0028] In the utility model, the liquid hydrogen storage device 1 is connected to the hydrogen tank 5 and the hydrogen reaction system 6 through the power pump 2, the dehydrogenation reactor 3 and the gas-liquid separator 4 in sequence, so that the liquid hydrogen raw material output by the liquid hydrogen storage device 1 is converted into gaseous hydrogen through the dehydrogenation reactor 3 and the gas-liquid separator 4, and the gas outlet of the gas-liquid separator 4 can transport the gaseous hydrogen to the hydrogen reaction system 6 or the hydrogen tank 5; the hydrogen tank 5 is also connected to the hydrogen reaction system 6, so that the hydrogen tank 5 can input the gaseous hydrogen stored therein into the hydrogen reaction system 6.

[0029] When the vehicle is cold started or the instantaneous hydrogen consumption demand is large, the hydrogen tank 5 can input the gaseous hydrogen stored therein into the hydrogen reaction system 6, so that the hydrogen reaction system 6 can respond in time; when the hydrogen reaction system 6 is in stable operation, the liquid hydrogen raw material output by the liquid hydrogen storage device 1 is preferentially converted into gaseous hydrogen after a series of reactions, and the gaseous gas is input into the hydrogen reaction system 6. The hydrogen storage and supply system integrates the functions of liquid hydrogen supply and gaseous hydrogen supply, can meet the hydrogen supply demand of the vehicle under different working conditions, and the hydrogen storage and supply system has high safety.

[0030] In one embodiment, if Figure 1 As shown, the gas outlet of the gas-liquid separator 4 is connected to the hydrogen reaction system 6 through a first pipeline, and the hydrogen tank 5 is connected to the first pipeline;

[0031] The hydrogen storage and supply system further includes a circulation pump 7, the inlet of the circulation pump 7 is connected to the hydrogen outlet of the hydrogen reaction system 6, and the outlet of the circulation pump 7 is connected to the first pipeline. It can be understood that the first pipeline has four interfaces, and the four interfaces on the first pipeline are respectively connected to the gas outlet of the gas-liquid separator 4, the hydrogen reaction system 6, the hydrogen tank 5 and the outlet of the circulation pump 7.

[0032] Specifically, the hydrogen that has not been completely burned in the hydrogen reaction system 6 can be extracted by the circulation pump 7 and transported to the hydrogen reaction system 6 for reuse, thereby improving the hydrogen utilization rate of the hydrogen storage and supply system. Furthermore, the outlet of the circulation pump 7 is connected to the first pipeline through a pressure relief valve, and the pressure relief valve can relieve pressure when the pressure of the hydrogen extracted by the circulation pump 7 is greater than a preset pressure.

[0033] In one embodiment, if Figure 1 As shown, the hydrogen storage and supply system also includes a bottle valve, and the first pipeline is connected to the hydrogen tank 5 through the bottle valve, and the bottle valve can control the connection and disconnection between the bottle valve and the first pipeline; the hydrogen storage and supply system also includes a safety valve and a drain valve installed on the bottle valve, and the safety valve can be opened to relieve the pressure of the hydrogen tank 5 when the hydrogen pressure in the hydrogen tank 5 is greater than the preset pressure value; when the drain valve is turned on, the hydrogen in the hydrogen tank 5 can be discharged through the drain valve.

[0034] In one embodiment, if Figure 1 As shown, the hydrogen storage and supply system further includes an organic matter storage tank 8, and the liquid outlet of the gas-liquid separator 4 is connected to the organic matter storage tank 8. It can be understood that the gaseous hydrogen separated by the gas-liquid separator 4 is input into the hydrogen reaction system 6 or the hydrogen tank 5 through its gas outlet, and the liquid organic matter separated by the gas-liquid separator 4 flows into the organic matter storage tank 8.

[0035] In one embodiment, if Figure 1 As shown, the hydrogen storage and supply system further includes a temperature controller 9 and a temperature sensor 11; the temperature sensor 11 is installed on the dehydrogenation reactor 3 and is used to detect the temperature of the liquid hydrogen raw material in the dehydrogenation reactor 3, and the temperature controller 9 is installed on the dehydrogenation reactor 3 and is used to adjust the temperature of the liquid hydrogen raw material in the dehydrogenation reactor 3. It can be understood that the temperature controller 9 can adjust the temperature of the liquid hydrogen raw material in the dehydrogenation reactor 3 in real time according to the temperature of the liquid hydrogen raw material in the dehydrogenation reactor 3 detected by the temperature sensor 11, so that the dehydrogenation reactor 3 is maintained at a suitable temperature, thereby improving the dehydrogenation efficiency of the dehydrogenation reactor 3.

[0036] In one embodiment, if Figure 1As shown, the hydrogen storage and supply system also includes a pressure controller 12 and a pressure sensor (not shown in the figure), and the dehydrogenation reactor 3 is connected to the inlet of the gas-liquid separator 4 through a second pipeline; the pressure sensor and the pressure controller 12 are both arranged on the second pipeline. It can be understood that the pressure sensor is used to detect the pressure of the liquid hydrogen input to the gas-liquid separator 4 by the dehydrogenation reactor 3, and the pressure controller 12 is used to adjust the pressure of the liquid hydrogen input to the gas-liquid separator 4 by the dehydrogenation reactor 3. The pressure controller 12 can adjust the pressure of the liquid hydrogen output by the dehydrogenation reactor 3 in real time according to the pressure of the liquid hydrogen output by the dehydrogenation reactor 3 detected by the pressure sensor, so that the pressure of the liquid hydrogen input to the gas-liquid separator 4 is maintained within a suitable temperature range, thereby ensuring the gas-liquid separation efficiency of the gas-liquid separator 4.

[0037] In one embodiment, if Figure 1 As shown, the gas outlet of the gas-liquid separator 4 is connected to the hydrogen reaction system 6 through a first pipeline, and the hydrogen tank 5 is connected to the first pipeline;

[0038] The hydrogen storage and supply system also includes a flow meter (not shown in the figure) and a first flow controller 13, and the flow meter and the first flow controller 13 are both installed on the first pipeline. It can be understood that the gas outlet of the gas-liquid separator 4 can be connected to the hydrogen reaction system 6 and the hydrogen tank 5 through the flow meter and the first flow controller 13 in sequence, and can also be connected to the hydrogen reaction system 6 and the hydrogen tank 5 through the first flow controller 13 and the flow meter in sequence. In this embodiment, the flow meter can detect the flow rate of the gaseous gas output from the gas outlet of the gas-liquid separator 4 in real time, and the first flow controller 13 can adjust the flow rate of the gaseous hydrogen output from the gas-liquid separator 4 to the hydrogen reaction system 6 or the hydrogen tank 5 in real time according to the gas flow rate detected by the flow meter.

[0039] In one embodiment, if Figure 1As shown, the hydrogen storage and supply system further includes a filter buffer assembly 14, and the gas outlet of the gas-liquid separator 4 is connected to the hydrogen reaction system 6 and the hydrogen tank 5 through the filter buffer assembly 14, and the hydrogen tank 5 is connected to the hydrogen reaction system 6 through the filter buffer assembly 14. In a specific embodiment, the filter buffer assembly 14 includes a filter, a compressor and a buffer tank; the gas outlet of the gas-liquid separator 4 is connected to the hydrogen reaction system 6 and the hydrogen tank 5 through the filter, the compressor and the buffer tank in sequence, and the filter can filter the gas hydrogen output from the gas outlet of the gas-liquid separator 4, and the gaseous hydrogen after filtering may still contain some liquid small molecules, and the compressor pumps the hydrogen filtered by the filter into the buffer tank, and the gas is input into the hydrogen reaction system 6 or the hydrogen tank 5 after being buffered by the buffer tank, thereby reducing the amount of liquid in the hydrogen input into the hydrogen reaction system 6 or the hydrogen tank 5.

[0040] In one embodiment, if Figure 1 As shown, the hydrogen storage and supply system further includes a solenoid valve 6 and a second flow controller 15 electrically connected to the solenoid valve 6, and the power pump 2 is connected to the dehydrogenation reactor 3 through the solenoid valve 6; the second flow controller 15 is used to adjust the opening of the power pump 2 through the solenoid valve 6 to control the flow rate of the liquid hydrogen raw material input to the dehydrogenation reactor 3. It can be understood that the solenoid valve 6 can control the flow rate of the liquid hydrogen raw material input by the power pump 2 to the dehydrogenation reactor 3.

[0041] In one embodiment, the hydrogen storage and supply system further includes a heat exchange device (not shown in the figure) for transferring the heat of the hydrogen reaction system 6 to the dehydrogenation reactor 3. In a specific embodiment, the heat exchange device includes a heat exchanger, an oil pipeline, and an oil pump, etc. The heat exchanger is connected to the dehydrogenation reactor and the dehydrogenation reactor 3 through the oil pipeline, and the oil pump can flow the heat transfer oil in the oil pipeline; after the heat transfer oil absorbs the waste heat of the hydrogen reaction system 6 at the hydrogen reaction system 6, the heat carried by the heat transfer oil is transferred to the dehydrogenation reactor 3 through the heat exchanger. In this embodiment, the heat exchange device can transfer the waste heat of the hydrogen reaction system 6 to the dehydrogenation reactor 3, so that the dehydrogenation reactor 3 can use the waste heat of the hydrogen reaction system 6, thereby improving the heat utilization rate of the hydrogen storage and supply system.

[0042] Another embodiment of the utility model further provides a vehicle, comprising the above-mentioned hydrogen storage and supply system.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen storage and supply system, characterized in that: It includes a hydrogen tank, a hydrogen reaction system, a liquid hydrogen storage device, a power pump, a dehydrogenation reactor and a gas-liquid separator; the hydrogen tank is connected to the hydrogen reaction system; The liquid hydrogen storage device, the power pump and the dehydrogenation reactor are connected in sequence; the inlet of the gas-liquid separator is connected to the outlet of the dehydrogenation reactor, and the gas outlet of the gas-liquid separator is connected to the hydrogen tank and the hydrogen reaction system; the hydrogen tank is also connected to the hydrogen reaction system.

2. The hydrogen storage and supply system according to claim 1, characterized in that: The gas outlet of the gas-liquid separator is connected to the hydrogen reaction system through a first pipeline, and the hydrogen tank is connected to the first pipeline; The hydrogen storage and supply system further includes a circulation pump, the inlet of the circulation pump is connected to the hydrogen outlet of the hydrogen reaction system, and the outlet of the circulation pump is connected to the first pipeline.

3. The hydrogen storage and supply system according to claim 1, characterized in that: The hydrogen storage and supply system further comprises an organic matter storage tank, and the liquid outlet of the gas-liquid separator is connected to the organic matter storage tank.

4. The hydrogen storage and supply system according to claim 1, characterized in that: The hydrogen storage and supply system also includes a temperature controller and a temperature sensor; the temperature sensor is installed on the dehydrogenation reactor and is used to detect the temperature of the liquid hydrogen raw material in the dehydrogenation reactor, and the temperature controller is installed on the dehydrogenation reactor and is used to adjust the temperature of the liquid hydrogen raw material in the dehydrogenation reactor.

5. The hydrogen storage and supply system according to claim 1, characterized in that: The hydrogen storage and supply system further includes a pressure controller and a pressure sensor. The dehydrogenation reactor is connected to the inlet of the gas-liquid separator through a second pipeline. The pressure sensor and the pressure controller are both arranged on the second pipeline.

6. The hydrogen storage and supply system according to claim 1, characterized in that: The gas outlet of the gas-liquid separator is connected to the hydrogen reaction system through a first pipeline, and the hydrogen tank is connected to the first pipeline; The hydrogen storage and supply system further includes a flow meter and a first flow controller, and the flow meter and the first flow controller are both installed on the first pipeline.

7. The hydrogen storage and supply system according to claim 1, characterized in that: The hydrogen storage and supply system further includes a filter buffer assembly, the gas outlet of the gas-liquid separator is connected to the hydrogen reaction system and the hydrogen tank through the filter buffer assembly, and the hydrogen tank is connected to the hydrogen reaction system through the filter buffer assembly.

8. The hydrogen storage and supply system according to claim 1, characterized in that: The hydrogen storage and supply system also includes a solenoid valve and a second flow controller electrically connected to the solenoid valve, and the power pump is connected to the dehydrogenation reactor through the solenoid valve; the second flow controller is used to adjust the opening of the power pump through the solenoid valve to control the flow of liquid hydrogen input into the dehydrogenation reactor.

9. The hydrogen storage and supply system according to claim 1, characterized in that: The hydrogen storage and supply system further includes a heat exchange device for transferring heat from the hydrogen reaction system to the dehydrogenation reactor.

10. A vehicle, characterized in that: Comprising the hydrogen storage and supply system as described in any one of claims 1 to 9.

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