Hydrogen supply system and vehicle

Abstract

The utility model discloses a hydrogen supply system and a vehicle, and relates to the technical field of hydrogen storage, a hydrogen storage container is connected with a vaporizer, and the vaporizer is used for being connected with a hydrogen using device to supply hydrogen to the hydrogen using device; the built-in pressurization pipeline and the vaporizer form a circulation loop, the built-in pressurization pipeline penetrates through the hydrogen storage container, and the vaporizer is used for heating a heat exchange medium of the circulation loop so as to heat liquid-phase hydrogen in the hydrogen storage container through the built-in pressurization pipeline; and the booster pump is used for conveying gas-phase hydrogen in the hydrogen tank to the hydrogen storage container. Therefore, by arranging the built-in pressurizing pipeline, the vaporizer heats the heat exchange medium in the built-in pressurizing pipeline so as to heat the liquid phase hydrogen in the hydrogen storage container, and the pressurizing pump is connected between the hydrogen storage container and the hydrogen tank, the hydrogen supply system can have multiple pressurizing modes, and the hydrogen supply requirements under multiple working conditions are met; the problem that the hydrogen supply system cannot be normally used when the booster pump of the system with the single boosting mode breaks down is reasonably solved, and the use reliability of the hydrogen supply system is improved.

Description

Technical Field

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

[0002] In related technologies, compared with gaseous hydrogen storage systems, liquid hydrogen storage systems have advantages such as large storage capacity, high hydrogen storage density, and long endurance time. Traditional liquid hydrogen storage systems adopt a pressurization mode of external pump pressurization or internal pump pressurization for gas cylinders. However, this pressurization mode is too single. When the hydrogen pump of the gas cylinder fails, the liquid hydrogen storage system cannot continue to supply hydrogen, resulting in the shutdown of the liquid hydrogen storage system and affecting the normal use of the equipment. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a hydrogen supply system, which has multiple pressurization modes, meets the hydrogen supply requirements under various working conditions, and reasonably avoids the problem that the hydrogen supply system cannot be used normally when the booster pump of a system with a single pressurization mode fails.

[0004] The utility model further provides a vehicle.

[0005] The hydrogen supply system according to the utility model includes: a hydrogen storage container, a vaporizer, the hydrogen storage container is connected to the vaporizer, and the vaporizer is used to be connected to a hydrogen-consuming device to supply hydrogen to the hydrogen-consuming device; an internal pressurization pipeline, the internal pressurization pipeline forms a circulation loop with the vaporizer, and the internal pressurization pipeline penetrates through the hydrogen storage container, and the vaporizer is used to heat the heat exchange medium in the circulation loop to heat the liquid-phase hydrogen in the hydrogen storage container through the internal pressurization pipeline; a booster pump and a hydrogen tank, the booster pump is connected between the hydrogen storage container and the hydrogen tank, and the booster pump is used to transport the gaseous hydrogen in the hydrogen tank to the hydrogen storage container.

[0006] According to the hydrogen supply system of the utility model, by setting the internal pressurization pipeline, the vaporizer heats the heat exchange medium in the internal pressurization pipeline to heat the liquid-phase hydrogen in the hydrogen storage container, and the booster pump is connected between the hydrogen storage container and the hydrogen tank, so that the hydrogen supply system can have multiple pressurization modes, meet the hydrogen supply requirements under various working conditions, reasonably avoid the problem that the hydrogen supply system cannot be used normally when the booster pump of a system with a single pressurization mode fails, and is beneficial to improving the use reliability of the hydrogen supply system.

[0007] In some examples of the utility model, the hydrogen storage container defines a liquid-phase space and a gas-phase space, and the internal pressurization pipeline penetrates through the liquid-phase space.

[0008] In some examples of the present utility model, the booster pump is connected between the gas phase space and the hydrogen tank, and the booster pump is used to transport the gaseous hydrogen in the hydrogen tank to the gas phase space.

[0009] In some examples of the present utility model, the hydrogen supply system further includes: a first pipeline, a first control valve, and a first one-way valve. The first control valve and the first one-way valve are both arranged in the first pipeline. The first pipeline is connected between the liquid phase space and the vaporizer. The first one-way valve is configured to conduct unidirectionally from the liquid phase space to the vaporizer.

[0010] In some examples of the present utility model, the hydrogen supply system further includes: a second pipeline and a second control valve. The second control valve is arranged in the second pipeline. The second pipeline is connected between the gas phase space and the vaporizer.

[0011] In some examples of the present utility model, the hydrogen supply system further includes: a third control valve. The third control valve is arranged in the built-in booster pipeline.

[0012] In some examples of the present utility model, the hydrogen supply system further includes: a combined valve. The combined valve is connected between the vaporizer and the hydrogen-consuming device. The combined valve includes a fourth control valve and a pressure reducing valve arranged in series.

[0013] In some examples of the present utility model, the hydrogen supply system further includes: a liquid replenishment pipeline and a fifth control valve. One end of the liquid replenishment pipeline is connected to the hydrogen storage container. The fifth control valve is arranged in the liquid replenishment pipeline;

[0014] And / or, the hydrogen supply system further includes: a return gas pipeline and a sixth control valve. One end of the return gas pipeline is connected to the hydrogen storage container. The sixth control valve is arranged in the return gas pipeline;

[0015] And / or, the hydrogen supply system further includes: a relief pipeline and a seventh control valve. One end of the relief pipeline is connected to the hydrogen storage container. The seventh control valve is arranged in the relief pipeline.

[0016] In some examples of the present utility model, the hydrogen supply system further includes: a plurality of safety pipelines and a plurality of safety valves. One end of each of the plurality of safety pipelines is connected to the hydrogen storage container. The plurality of safety valves are respectively arranged in the plurality of safety pipelines; The plurality of safety valves include: a first safety valve, a second safety valve, and a third safety valve. The plurality of safety pipelines include: a first safety pipeline, a second safety pipeline, and a third safety pipeline. The first safety valve is arranged in the first safety pipeline, the second safety valve is arranged in the second safety pipeline, and the third safety valve is arranged in the third safety pipeline.

[0017] The vehicle according to the present utility model includes the hydrogen supply system described above.

[0018] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic structural diagram of the hydrogen supply system according to an embodiment of the present utility model.

[0021] Reference numerals:

[0022] Hydrogen supply system 100;

[0023] Hydrogen storage container 10; liquid phase space 11; gas phase space 12; vaporizer 13; booster pump 14; hydrogen tank 15; hydrogen-consuming device 16;

[0024] Built-in booster pipeline 20; first pipeline 21; second pipeline 22; third pipeline 23; first branch 25;

[0025] Liquid replenishment pipeline 31; return gas pipeline 32; relief pipeline 33; first safety pipeline 34; second safety pipeline 35; third safety pipeline 36;

[0026] First one-way valve 41; second one-way valve 42; combined valve 43; pressure reducing valve 44; temperature and pressure integrated sensor 45; pressure sensor 46; third one-way valve 47;

[0027] First control valve 51; second control valve 52; third control valve 53; fourth control valve 54; fifth control valve 55; sixth control valve 56; seventh control valve 57;

[0028] First safety valve 61; second safety valve 62; third safety valve 63. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the drawings below are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0030] Reference is made below to Figure 1 describe the hydrogen supply system 100 according to an embodiment of the present utility model.

[0031] AsFigure 1 As shown in Figure 1 , the hydrogen supply system 100 according to an embodiment of the present utility model includes: a hydrogen storage container 10, a vaporizer 13, an internal pressurization pipeline 20, a booster pump 14, and a hydrogen tank 15.

[0032] The hydrogen storage container 10 is connected to the vaporizer 13, and the vaporizer 13 is used to be connected to a hydrogen-consuming device 16 to supply hydrogen to the hydrogen-consuming device 16; the internal pressurization pipeline 20 forms a circulation loop with the vaporizer 13, and the internal pressurization pipeline 20 passes through the hydrogen storage container 10. The vaporizer 13 is used to heat the heat exchange medium in the circulation loop to heat the liquid-phase hydrogen in the hydrogen storage container 10 through the internal pressurization pipeline 20; the booster pump 14 is connected between the hydrogen storage container 10 and the hydrogen tank 15, and the booster pump 14 is used to transport the gaseous hydrogen in the hydrogen tank 15 to the hydrogen storage container 10.

[0033] Among them, the hydrogen storage container 10 is connected to the vaporizer 13. As some embodiments of the present application, the hydrogen storage container 10 is connected to the vaporizer 13 through a pipeline. The vaporizer 13 is used to be connected to the hydrogen-consuming device 16 to supply hydrogen to the hydrogen-consuming device 16. As some embodiments of the present application, the vaporizer 13 is connected to the hydrogen-consuming device 16 through a pipeline. Specifically, the liquid-phase hydrogen in the hydrogen storage container 10 can be vaporized in the vaporizer 13 and transformed into gaseous hydrogen to provide gaseous hydrogen to the hydrogen-consuming device 16.

[0034] It should be noted that the hydrogen-consuming device 16 can be, but is not limited to, a fuel cell of a vehicle. The present application takes the hydrogen-consuming device 16 applied to a fuel cell of a vehicle as an example for illustration and will not be elaborated herein.

[0035] The internal pressurization pipeline 20 forms a circulation loop with the vaporizer 13. Specifically, the vaporizer 13 includes a plurality of cavities. The internal pressurization pipeline 20 communicates with one of the cavities of the vaporizer 13 to form a circulation loop, and the other cavity of the vaporizer 13 communicates with the hydrogen storage container 10 and the hydrogen-consuming device 16 respectively. The internal pressurization pipeline 20 passes through the hydrogen storage container 10. It can be understood that the internal pressurization pipeline 20 and the hydrogen storage container 10 do not communicate with each other.

[0036] The vaporizer 13 is used to heat the heat exchange medium in the internal pressurization pipeline 20 to heat the liquid-phase hydrogen in the hydrogen storage container 10 through the internal pressurization pipeline 20. Specifically, there is a heat exchange medium in the circulation loop, and the heat exchange medium can be, but is not limited to, ethylene glycol aqueous solution, hydrogen, etc. The heat exchange medium absorbs heat in the vaporizer 13. Since the internal pressurization pipeline 20 passes through the hydrogen storage container 10, the heat exchange medium in the internal pressurization pipeline 20 can transfer heat to the hydrogen storage container 10 to vaporize the liquid-phase hydrogen in the hydrogen storage container 10 to achieve a pressurization function.

[0037] The booster pump 14 is connected between the hydrogen storage container 10 and the hydrogen tank 15. Specifically, the booster pump 14 is connected to the hydrogen tank 15 through a pipeline, and the booster pump 14 is connected to the hydrogen storage container 10 through a pipeline. The booster pump 14 is used to transport the gaseous hydrogen in the hydrogen tank 15 to the hydrogen storage container 10. That is to say, the gaseous hydrogen in the hydrogen tank 15 enters the hydrogen storage container 10 under the action of the booster pump 14 to achieve the boosting function.

[0038] It can be understood that by forming a circulation loop between the built-in booster pipeline 20 and the vaporizer 13, and through the heat conduction of the circulation loop, the boosting function can be achieved (the first boosting mode). By using the booster pump 14 to transport the gaseous hydrogen in the hydrogen tank 15 to the hydrogen storage container 10, the boosting function can be achieved (the second boosting mode). By the heat conduction of the circulation loop and using the booster pump 14 to transport the gaseous hydrogen in the hydrogen tank 15 to the hydrogen storage container 10, the boosting function can be achieved (the third boosting mode). Therefore, the present application can enable the hydrogen supply system to have multiple boosting modes, and when the built-in booster pipeline 20 or the booster pump 14 fails, the normal use of the hydrogen supply system 100 can be ensured.

[0039] Thus, by setting the built-in booster pipeline 20, the vaporizer 13 heats the heat exchange medium in the built-in booster pipeline 20 to heat the liquid hydrogen in the hydrogen storage container 10, and by connecting the booster pump 14 between the hydrogen storage container 10 and the hydrogen tank 15, the hydrogen supply system 100 can have multiple boosting modes, meet the hydrogen supply requirements under various working conditions, and reasonably avoid the problem that the hydrogen supply system 100 cannot be used normally when the booster pump of the system with a single boosting mode fails, which is beneficial to improving the use reliability of the hydrogen supply system 100.

[0040] In some embodiments of the present utility model, as Figure 1 shown, the hydrogen storage container 10 defines a liquid phase space 11 and a gas phase space 12, and the built-in booster pipeline 20 passes through the liquid phase space 11.

[0041] Among them, the hydrogen storage container 10 defines a liquid phase space 11 and a gas phase space 12. The liquid phase space 11 and the gas phase space 12 are communicated. The liquid phase space 11 stores liquid hydrogen, and the gas phase space 12 stores gaseous hydrogen. The built-in booster pipeline 20 passes through the liquid phase space 11, and the built-in booster pipeline 20 can exchange heat with the liquid hydrogen in the liquid phase space 11 to vaporize the liquid hydrogen to achieve the boosting function.

[0042] By enabling the hydrogen storage container 10 to define a liquid phase space 11 and a gas phase space 12, and by making the built-in booster pipeline 20 pass through the liquid phase space 11, the built-in booster pipeline 20 can quickly conduct heat with the liquid hydrogen in the liquid phase space 11, which is beneficial to quickly vaporize the liquid hydrogen, so as to achieve the purpose of quickly boosting the gas phase space 12, and is beneficial to the rationality of the hydrogen supply system 100.

[0043] In some embodiments of the present utility model, as Figure 1 shown, the booster pump 14 is connected between the gas phase space 12 and the hydrogen tank 15, and the booster pump 14 is used to transport the gaseous hydrogen in the hydrogen tank 15 to the gas phase space 12.

[0044] Among them, the booster pump 14 is connected between the gas phase space 12 and the hydrogen tank 15. That is to say, the booster pump 14 is communicated with the gas phase space 12 of the hydrogen storage container 10, and the booster pump 14 is communicated with the hydrogen tank 15. The booster pump 14 is used to transport the gaseous hydrogen in the hydrogen tank 15 to the gas phase space 12 to pressurize the gas phase space 12.

[0045] As some embodiments of the present application, as Figure 1 shown, the hydrogen supply system 100 further includes a third one-way valve 47. A third one-way valve 47 is connected between the booster pump 14 and the gas phase space 12. The third one-way valve 47 is configured to conduct unidirectionally from the hydrogen tank 15 to the gas phase space 12.

[0046] By connecting the booster pump 14 between the gas phase space 12 and the hydrogen tank 15 and making the booster pump 14 transport the gaseous hydrogen in the hydrogen tank 15 to the gas phase space 12, the purpose of quickly pressurizing the gas phase space 12 can be achieved, which is beneficial to the rationality of the hydrogen supply system 100.

[0047] In some embodiments of the present utility model, as Figure 1 shown, the hydrogen supply system 100 further includes: a first pipeline 21, a first control valve 51 and a first one-way valve 41. The first control valve 51 and the first one-way valve 41 are both arranged on the first pipeline 21. The first pipeline 21 is connected between the liquid phase space 11 and the vaporizer 13. The first one-way valve 41 is configured to conduct unidirectionally from the liquid phase space 11 to the vaporizer 13.

[0048] As some embodiments of the present application, the first one-way valve 41 is arranged downstream of the first control valve 51.

[0049] The first pipeline 21 is connected between the liquid phase space 11 and the vaporizer 13. That is to say, the first pipeline 21 has opposite ends, one end of which is connected to the liquid phase space 11 of the liquid storage container, and the other end is connected to the vaporizer 13, so that the liquid hydrogen in the liquid phase space 11 can enter the vaporizer 13 along the first pipeline 21.

[0050] By connecting the first pipeline 21 between the liquid phase space 11 and the vaporizer 13, the liquid-phase hydrogen in the liquid phase space 11 can enter the vaporizer 13 along the first pipeline 21 to supply gaseous hydrogen to the hydrogen-using device 16 (such as a fuel cell). Moreover, by arranging the first control valve 51 on the first pipeline 21, the on-off of the first pipeline 21 can be controlled by controlling the first control valve 51. Additionally, by arranging the first one-way valve 41 on the first pipeline 21 and configuring the first one-way valve 41 to conduct unidirectionally from the liquid phase space 11 to the vaporizer 13 direction, the liquid-phase hydrogen in the liquid phase space 11 can only flow in the direction from the liquid phase space 11 to the vaporizer 13, reducing the probability of the liquid-phase hydrogen flowing back to the liquid phase space 11, which is beneficial to improving the use reliability of the hydrogen supply system 100.

[0051] In some embodiments of the present utility model, as Figure 1 shown, the hydrogen supply system 100 further includes: a second pipeline 22 and a second control valve 52. The second control valve 52 is arranged on the second pipeline 22, and the second pipeline 22 is connected between the gas phase space 12 and the vaporizer 13.

[0052] Among them, the second control valve 52 is arranged on the second pipeline 22 to control the on-off of the second pipeline 22. The second pipeline 22 is connected between the liquid phase space 11 and the vaporizer 13. Specifically, the second pipeline 22 has opposite ends, one end of which is connected to the gas phase space 12 of the liquid storage container, and the other end is connected to the vaporizer 13, so that the gaseous hydrogen in the gas phase space 12 can enter the vaporizer 13 along the second pipeline 22.

[0053] As some embodiments of the present application, the hydrogen supply system 100 further includes a first branch 25. One end of the first pipeline 21 is connected to the liquid phase space 11, one end of the second pipeline 22 is connected to the gas phase space 12, the other ends of the first pipeline 21 and the second pipeline 22 are both connected to the first branch 25, and the first branch 25 is connected to the vaporizer 13. That is to say, the first pipeline 21 and the second pipeline 22 are in parallel.

[0054] As some embodiments of the present application, the hydrogen supply system 100 further includes a second one-way valve 42. The second one-way valve 42 is arranged on the first branch 25, and the second one-way valve 42 is configured to conduct unidirectionally from the hydrogen storage container 10 to the vaporizer 13 direction.

[0055] By connecting the second pipeline 22 between the gas phase space 12 and the vaporizer 13, the gaseous hydrogen in the gas phase space 12 can lead to the vaporizer 13 along the second pipeline 22. When the hydrogen storage container 10 is overpressured, the hydrogen supply system 100 can directly introduce the overpressure gas into the vaporizer 13 to be vaporized and then enter the hydrogen-using device 16, which is beneficial to improving the economy, safety and stability of the hydrogen supply system 100. Moreover, by arranging the second control valve 52 on the second pipeline 22, the on-off of the second pipeline 22 can be controlled by controlling the second control valve 52.

[0056] In some embodiments of the present utility model, as Figure 1 shown, the hydrogen supply system 100 further includes: a third control valve 53, and the third control valve 53 is arranged in the built-in pressurization pipeline 20.

[0057] Wherein, the third control valve 53 can control the on-off of the built-in pressurization pipeline 20. That is to say, by opening the third control valve 53, the heat exchange medium can flow in the built-in pressurization pipeline 20, so that heat conduction can be carried out between the built-in pressurization pipeline 20 and the liquid phase space 11. The liquid phase hydrogen in the liquid phase space 11 is heated to become gaseous hydrogen, thereby increasing the pressure of the hydrogen storage container 10.

[0058] By arranging the third control valve 53 in the built-in pressurization pipeline 20, the on-off of the built-in pressurization pipeline 20 can be controlled by controlling the third control valve 53, so that the flow of the heat exchange medium in the built-in pressurization pipeline 20 can be conveniently controlled, which is beneficial to the use reliability of the hydrogen supply system 100.

[0059] As some embodiments of the present application, the heat exchange medium can be hydrogen. Hydrogen will flow in the built-in pressurization pipeline 20 when heated to quickly transfer heat to the liquid phase hydrogen in the liquid phase space 11. As some embodiments of the present application, a pump can be arranged on the built-in pressurization pipeline 20 to drive the heat exchange medium in the built-in pressurization pipeline 20 to flow, so as to quickly transfer heat to the liquid phase hydrogen in the liquid phase space 11.

[0060] In some embodiments of the present utility model, as Figure 1 shown, the hydrogen supply system 100 further includes: a combined valve 43, and the combined valve 43 is connected between the vaporizer 13 and the hydrogen using device 16. The combined valve 43 includes a fourth control valve 54 and a pressure reducing valve 44 arranged in series.

[0061] As some embodiments of the present application, the vaporizer 13 and the hydrogen using device 16 are connected through a third pipeline 23, and the combined valve 43 is arranged on the third pipeline 23.

[0062] The combined valve 43 includes a fourth control valve 54 and a pressure reducing valve 44 arranged in series. The fourth control valve 54 can control the on-off of the third pipeline 23 to control the on-off between the vaporizer 13 and the hydrogen using device 16. The pressure reducing valve 44 can adjust the pressure of the gaseous hydrogen flowing out of the vaporizer 13 to the pressure of the gaseous hydrogen required by the hydrogen using device 16 to meet the hydrogen using requirements of the hydrogen using device 16.

[0063] By making the hydrogen supply system 100 further include the combined valve 43 and making the combined valve 43 include a fourth control valve 54 and a pressure reducing valve 44 arranged in series, the valve integration degree of the hydrogen supply system 100 can be made high, and the assembly difficulty of the hydrogen supply system 100 can be reduced.

[0064] In some embodiments of the present utility model, as Figure 1 shown, the hydrogen supply system 100 further includes: a liquid replenishment pipeline 31 and a fifth control valve 55. One end of the liquid replenishment pipeline 31 is connected to the hydrogen storage container 10, and the fifth control valve 55 is arranged on the liquid replenishment pipeline 31; and / or, the hydrogen supply system 100 further includes: a return gas pipeline 32 and a sixth control valve 56. One end of the return gas pipeline 32 is connected to the hydrogen storage container 10, and the sixth control valve 56 is arranged on the return gas pipeline 32; and / or, the hydrogen supply system 100 further includes: a relief pipeline 33 and a seventh control valve 57. One end of the relief pipeline 33 is connected to the hydrogen storage container 10, and the seventh control valve 57 is arranged on the relief pipeline 33.

[0065] Wherein, the liquid replenishment pipeline 31 has opposite ends. One end of the liquid replenishment pipeline 31 is inserted into the hydrogen storage container 10, and the other end of the liquid replenishment pipeline 31 is configured as a liquid replenishment port. The fifth control valve 55 is arranged on the liquid replenishment pipeline 31, and the fifth control valve 55 can control the on-off of the liquid replenishment pipeline 31. As some embodiments of the present application, after the fifth control valve 55 is opened, the hydrogen storage container 10 can be replenished with liquid through the liquid replenishment port.

[0066] By making the hydrogen supply system 100 further include the liquid replenishment pipeline 31 and the fifth control valve 55, the hydrogen storage container 10 can be reliably replenished with liquid.

[0067] The return gas pipeline 32 has opposite ends. One end of the return gas pipeline 32 is connected to the gas phase space 12, and the other end of the return gas pipeline 32 is connected to the outside or a container. The sixth control valve 56 is arranged on the return gas pipeline 32, and the sixth control valve 56 can control the on-off of the return gas pipeline 32. It should be noted that before liquid replenishment, a part of the gas-phase hydrogen in the hydrogen storage container 10 can be discharged through the return gas pipeline 32 first, so as to reduce the pressure of the gas phase space 12 in the hydrogen storage container 10, and it is convenient to replenish liquid-phase hydrogen to the liquid phase space 11 under the action of the pressure difference. As some embodiments of the present application, the sixth control valve 56 can be opened first to discharge a part of the gas-phase hydrogen in the hydrogen storage container 10 to reduce the pressure of the hydrogen storage container 10, and then the fifth control valve 55 is opened, and the hydrogen storage container 10 can be quickly and reliably replenished with liquid under the action of the pressure difference.

[0068] As some embodiments of the present application, when the gas-phase hydrogen in the hydrogen storage container 10 is overpressured, the pressure of the gas phase space 12 in the hydrogen storage container 10 can also be reduced by opening the sixth control valve 56. As some embodiments of the present application, one end of the return gas pipeline 32 is connected to the gas phase space 12, and the other end of the return gas pipeline 32 is connected to a hydrogen recovery container. As some embodiments of the present application, the return gas pipeline 32 is connected to the second pipeline 22. Specifically, one end of the return gas pipeline 32 is connected between the gas phase space 12 and the second control valve 52, and the other end of the return gas pipeline 32 is connected to the hydrogen recovery container. Such a setting enables the gas-phase hydrogen flowing out through the return gas pipeline 32 to flow into the container, so as to realize the recycling of the gas-phase hydrogen.

[0069] By making the hydrogen supply system 100 further include a return gas pipeline 32 and a sixth control valve 56, it is convenient for the hydrogen supply system 100 to replenish liquid, and it can also reduce the pressure in the gas phase space 12 of the hydrogen storage container 10 when the gas phase hydrogen in the hydrogen storage container 10 is overpressure, which is beneficial to improving the reliability and safety of the hydrogen supply system 100.

[0070] The discharge pipeline 33 has opposite ends. One end of the discharge pipeline 33 is connected to the gas phase space 12, and the other end of the discharge pipeline 33 is connected to the outside. A seventh control valve 57 is provided on the discharge pipeline 33, and the seventh control valve 57 can control the on-off of the discharge pipeline 33. It should be noted that the overpressure gas phase hydrogen in the hydrogen storage container 10 can be discharged through the discharge pipeline 33. As some embodiments of the present application, the seventh control valve 57 is a manual valve. By opening the seventh control valve 57, the pressure in the gas phase space 12 of the hydrogen storage container 10 can be reduced through the discharge pipeline 33, so as to reduce the probability of safety accidents.

[0071] As some embodiments of the present application, when the hydrogen storage container 10 is overpressure, the seventh control valve 57 may not be manually opened first. The second control valve 52 can be opened to make the overpressure gas enter the first branch 25 from the gas phase space 12 through the second pipeline 22. After being mixed with the liquid phase hydrogen in the first branch 25, it enters the hydrogen-consuming device 16 through the vaporizer 13. Such a setting is beneficial to the gas consumption economy of the hydrogen supply system 100.

[0072] By making the hydrogen supply system 100 further include a discharge pipeline 33 and a seventh control valve 57, when the gas phase hydrogen in the hydrogen storage container 10 is overpressure, the overpressure gas can be discharged through the seventh control valve 57, which is beneficial to improving the safety of the hydrogen supply system 100.

[0073] In some embodiments of the present utility model, as Figure 1 shown, the hydrogen supply system 100 further includes: a plurality of safety pipelines and a plurality of safety valves. One end of each of the plurality of safety pipelines is connected to the hydrogen storage container 10, and a plurality of safety valves are respectively arranged on the plurality of safety pipelines.

[0074] Among them, the hydrogen supply system 100 further includes safety pipelines and safety valves. The number of both the safety pipelines and the safety valves is a plurality, and moreover, the number of the safety pipelines and the safety valves is the same and they are arranged in one-to-one correspondence. The number of both the safety pipelines and the safety valves can be but is not limited to two, three, four, etc. As some embodiments of the present application, the number of both the safety pipelines and the safety valves is three.

[0075] As some embodiments of the present application, the multiple safety pipelines include a first safety pipeline 34, a second safety pipeline 35, and a third safety pipeline 36, the multiple safety valves include a first safety valve 61, a second safety valve 62, and a third safety valve 63, and the multiple safety valves are respectively arranged on the multiple safety pipelines. That is to say, the first safety valve 61 is arranged on the first safety pipeline 34, the second safety valve 62 is arranged on the second safety pipeline 35, and the third safety valve 63 is arranged on the third safety pipeline 36.

[0076] One ends of the multiple safety pipelines are all connected to the hydrogen storage container 10 (for example, one ends of the multiple safety pipelines are all communicated with the gas phase space 12 of the hydrogen storage container 10), the other ends of the multiple safety pipelines can all be connected to the outside, and the multiple safety valves can control the on-off of the multiple safety pipelines to discharge the gaseous hydrogen in the hydrogen storage container 10, so as to reduce the probability of excessive pressure in the hydrogen storage container 10 and improve the use reliability of the hydrogen supply system 100.

[0077] As some embodiments of the present application, the first safety valve 61, the second safety valve 62, and the third safety valve 63 can all be configured as electric control valves.

[0078] By making the hydrogen supply system 100 further include multiple safety pipelines and multiple safety valves, the hydrogen storage container 10 can automatically relieve pressure through the multiple safety pipelines when the gaseous hydrogen is overpressured, which is beneficial to improving the safety of the hydrogen supply system 100.

[0079] As some embodiments of the present application, as Figure 1 shown, one end of the first safety pipeline 34 is connected to the discharge pipeline 33, the other end of the first safety pipeline 34 is provided with the first safety valve 61, and the end of the first safety pipeline 34 connected to the discharge pipeline 33 is arranged upstream of the seventh control valve 57.

[0080] One end of the second safety pipeline 35 is connected to the return gas pipeline 32, the other end of the second safety pipeline 35 is provided with the second safety valve 62, and the end of the second safety pipeline 35 connected to the return gas pipeline 32 is arranged upstream of the sixth control valve 56.

[0081] One end of the third safety pipeline 36 is connected to the third pipeline 23, the other end of the third safety pipeline 35 is provided with the third safety valve 63, and the end of the third safety pipeline 36 connected to the third pipeline 23 is arranged downstream of the vaporizer 13 and upstream of the combination valve 43.

[0082] In some embodiments of the present application, when the pressure value of the gaseous hydrogen in the hydrogen storage container 10 is greater than or equal to the first preset pressure value, the first safety valve 61 can be opened to reduce the pressure in the hydrogen storage container 10. When the pressure value of the gaseous hydrogen in the hydrogen storage container 10 is greater than or equal to the second preset pressure value, the second safety valve 62 can be opened to reduce the pressure in the hydrogen storage container 10. When the pressure value of the gaseous hydrogen in the hydrogen storage container 10 is greater than or equal to the third preset pressure value, the third safety valve 63 can be opened to reduce the pressure in the hydrogen storage container 10.

[0083] In some embodiments of the present application, when the pressure value of the gaseous hydrogen in the hydrogen storage container 10 is greater than or equal to the first preset pressure value, the first safety valve 61 can be opened to reduce the pressure in the hydrogen storage container 10. In some embodiments of the present application, when the pressure value of the gaseous hydrogen in the hydrogen storage container 10 is greater than or equal to the second preset pressure value, both the first safety valve 61 and the second safety valve 62 can be opened to reduce the pressure in the hydrogen storage container 10. In some embodiments of the present application, when the pressure value of the gaseous hydrogen in the hydrogen storage container 10 is greater than or equal to the third preset pressure value, the first safety valve 61, the second safety valve 62, and the third safety valve 63 can all be opened to reduce the pressure in the hydrogen storage container 10.

[0084] In this way, it can reliably ensure that the hydrogen storage container 10 will not be over-pressurized, and can also reliably ensure that the hydrogen storage container 10 will not be over-depressurized, making the pressure of the hydrogen storage container 10 reasonable, and can ensure the hydrogen supply safety of the hydrogen supply system 100, and can reduce the probability of potential safety hazards under the failure of the hydrogen supply system 100 or human misoperation, which is beneficial to improving the safety performance of the hydrogen supply system 100.

[0085] In some embodiments of the present application, the hydrogen supply system 100 further includes a controller, which is electrically connected to the first control valve 51, the second control valve 52, the third control valve 53, the fourth control valve 54, the fifth control valve 55, the sixth control valve 56, and the seventh control valve 57 respectively to control the opening and closing of the first control valve 51, the second control valve 52, the third control valve 53, the fourth control valve 54, the fifth control valve 55, the sixth control valve 56, and the seventh control valve 57. In some embodiments of the present application, the controller is also electrically connected to the first safety valve 61, the second safety valve 62, and the third safety valve 63 to control the opening and closing of the first safety valve 61, the second safety valve 62, and the third safety valve 63. In some embodiments of the present application, the controller is electrically connected to the booster pump 14 and the vaporizer 13 respectively.

[0086] In some embodiments of the present application, the first control valve 51, the second control valve 52, the third control valve 53, the fourth control valve 54, the fifth control valve 55, the sixth control valve 56, and the seventh control valve 57 can be configured as solenoid valves.

[0087] As some embodiments of the present application, when the hydrogen supply system 100 supplies hydrogen normally, if the pressure in the hydrogen storage container 10 reaches the fourth preset pressure value (the fourth preset pressure value can be any value between 1 MPa and 2.5 MPa), the controller controls the first control valve 51 to open and the second control valve 52 to close. At the same time, the vaporizer 13 is operated. The liquid hydrogen in the liquid phase space 11 passes through the first control valve 51 and the first one-way valve 41 and enters the vaporizer 13. The vaporizer 13 heats the liquid hydrogen to become gaseous hydrogen, and the gaseous hydrogen enters the combined valve 43 for pressure regulation. After pressure regulation, it enters the hydrogen-consuming device 16 for use.

[0088] As some embodiments of the present application, when the pressure in the hydrogen storage container 10 does not meet the fourth preset pressure value, that is, the pressure in the hydrogen storage container 10 cannot meet the normal hydrogen supply requirement. At this time, the hydrogen storage container 10 needs to be pressurized. The controller controls the first control valve 51 to close and the second control valve 52 to close, and operates the booster pump 14 to increase the pressure in the gas phase space 12 of the hydrogen storage container 10. When the pressure in the hydrogen storage container 10 reaches the fourth preset pressure value, the controller controls the first control valve 51 to open and the second control valve 52 to close. At the same time, the vaporizer 13 is operated. The liquid hydrogen in the liquid phase space 11 passes through the first control valve 51 and the first one-way valve 41 and enters the vaporizer 13. The vaporizer 13 heats the liquid hydrogen to become gaseous hydrogen, and the gaseous hydrogen enters the combined valve 43 for pressure regulation. After pressure regulation, it enters the hydrogen-consuming device 16 for use.

[0089] As some embodiments of the present application, the combined valve 43 further includes a temperature and pressure integrated sensor 45 and a pressure sensor 46. The temperature and pressure integrated sensor 45 is arranged downstream of the pressure reducing valve 44. The temperature and pressure integrated sensor 45 is electrically connected to the controller. The temperature and pressure integrated sensor 45 can detect the temperature and pressure of the gaseous hydrogen entering the hydrogen-consuming device 16 and feedback them to the controller. The pressure sensor 46 is arranged upstream of the fourth control valve 54. The pressure sensor 46 can detect the pressure of the gaseous hydrogen entering the combined valve 43 and feedback it to the controller. The controller can judge whether the temperature and pressure data meet the use requirements according to the feedback information. If any one of the pressure and temperature does not meet the use requirements, the controller can control the fourth control valve 54 to close to stop the hydrogen supply system 100 from supplying hydrogen. This setting can improve the integration degree of the hydrogen supply system 100.

[0090] In some embodiments of the present application, when the pressure in the hydrogen storage container 10 does not meet the fourth preset pressure value, that is to say, the pressure in the hydrogen storage container 10 cannot meet the normal hydrogen supply requirement. At this time, the hydrogen storage container 10 needs to be pressurized. The controller controls the first control valve 51 to close and the second control valve 52 to close, makes the vaporizer 13 work, and opens the third control valve 53 to make the heat exchange medium flow in the built-in pressurization pipeline 20, so that the built-in pressurization pipeline 20 conducts heat with the liquid phase space 11 to pressurize the hydrogen storage container 10. When the pressure in the hydrogen storage container 10 reaches the fourth preset pressure value, the controller controls the first control valve 51 to open and the second control valve 52 to close, and at the same time makes the vaporizer 13 work. The liquid-phase hydrogen in the liquid phase space 11 enters the vaporizer 13 through the first control valve 51 and the first one-way valve 41. The vaporizer 13 heats the liquid-phase hydrogen and turns it into gaseous hydrogen. The gaseous hydrogen enters the combined valve 43 for pressure regulation, and after pressure regulation, it enters the hydrogen-using device 16 for use.

[0091] In some embodiments of the present application, when the pressure in the hydrogen storage container 10 does not meet the fourth preset pressure value, that is to say, the pressure in the hydrogen storage container 10 cannot meet the normal hydrogen supply requirement. At this time, the hydrogen storage container 10 needs to be pressurized. The controller controls the first control valve 51 to close and the second control valve 52 to close, makes the vaporizer 13 work, and opens the third control valve 53 to make the heat exchange medium flow in the built-in pressurization pipeline 20, so that the built-in pressurization pipeline 20 conducts heat with the liquid phase space 11 to pressurize the hydrogen storage container 10. And, the controller simultaneously controls the booster pump 14 to work. That is to say, the hydrogen supply system 100 can quickly pressurize the hydrogen storage container 10 by the simultaneous work of the built-in pressurization pipeline 20 and the booster pump 14.

[0092] It can be understood that the hydrogen supply system 100 proposed by the present application has a high degree of integration. When applied to a vehicle, it can meet the requirements of vehicle lightweighting.

[0093] In some embodiments of the present application, when the hydrogen supply system 100 proposed by the present application is applied to a vehicle, it can be arranged on the upper side of the vehicle frame and adopt a single hydrogen storage container 10 solution to meet the requirements of long-distance transportation, heavy load, etc.

[0094] The vehicle according to the embodiment of the present invention includes the hydrogen supply system 100 of the above embodiment. By providing the built-in pressurization pipeline 20, the vaporizer 13 heats the heat exchange medium in the built-in pressurization pipeline 20 to heat the liquid-phase hydrogen in the hydrogen storage container 10, and the booster pump 14 is connected between the hydrogen storage container 10 and the hydrogen tank 15, which can enable the hydrogen supply system 100 to have multiple pressurization modes, meet the hydrogen supply requirements under various working conditions, and reasonably avoid the problem that the hydrogen supply system 100 cannot be used normally when the booster pump of the system with a single pressurization mode fails, which is beneficial to improving the use reliability of the hydrogen supply system 100.

[0095] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0096] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0097] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0098] In the description of the present utility model, that the first feature is "above" or "below" the second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but in contact through additional features therebetween.

[0099] In the description of the present utility model, that the first feature is "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature.

[0100] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0101] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A hydrogen supply system, characterized in that: include: A hydrogen storage container (10) and a vaporizer (13), wherein the hydrogen storage container (10) is connected to the vaporizer (13), and the vaporizer (13) is used to be connected to a hydrogen-using device (16) to supply hydrogen to the hydrogen-using device (16); A built-in boosting pipeline (20), wherein the built-in boosting pipeline (20) and the vaporizer (13) form a circulation loop, and the built-in boosting pipeline (20) is arranged through the hydrogen storage container (10), and the vaporizer (13) is used to heat the heat exchange medium of the circulation loop, so as to heat the liquid hydrogen in the hydrogen storage container (10) through the built-in boosting pipeline (20); A booster pump (14) and a hydrogen tank (15), wherein the booster pump (14) is connected between the hydrogen storage container (10) and the hydrogen tank (15), and the booster pump (14) is used to transport gaseous hydrogen in the hydrogen tank (15) to the hydrogen storage container (10).

2. The hydrogen supply system according to claim 1, characterized in that: The hydrogen storage container (10) defines a liquid phase space (11) and a gas phase space (12), and the built-in pressurizing pipeline (20) is arranged through the liquid phase space (11).

3. The hydrogen supply system according to claim 2, characterized in that: The booster pump (14) is connected between the gas phase space (12) and the hydrogen tank (15), and the booster pump (14) is used to transport the gas phase hydrogen in the hydrogen tank (15) to the gas phase space (12).

4. The hydrogen supply system according to claim 2, characterized in that: The hydrogen supply system (100) further comprises: a first pipeline (21), a first control valve (51) and a first non-return valve (41); the first control valve (51) and the first non-return valve (41) are both arranged on the first pipeline (21); the first pipeline (21) is connected between the liquid phase space (11) and the vaporizer (13); and the first non-return valve (41) is constructed to conduct one-way from the liquid phase space (11) to the vaporizer (13).

5. The hydrogen supply system according to claim 2, characterized in that: The hydrogen supply system (100) further comprises: a second pipeline (22) and a second control valve (52), wherein the second control valve (52) is arranged on the second pipeline (22), and the second pipeline (22) is connected between the gas phase space (12) and the vaporizer (13).

6. The hydrogen supply system according to claim 1, characterized in that: The hydrogen supply system (100) further comprises: a third control valve (53), wherein the third control valve (53) is arranged in the built-in boosting pipeline (20).

7. The hydrogen supply system according to claim 1, characterized in that: The hydrogen supply system (100) further comprises: a combination valve (43), wherein the combination valve (43) is connected between the vaporizer (13) and the hydrogen using device (16), and the combination valve (43) comprises a fourth control valve (54) and a pressure reducing valve (44) which are arranged in series.

8. The hydrogen supply system according to claim 1, characterized in that: The hydrogen supply system (100) further comprises: a liquid replenishing pipeline (31) and a fifth control valve (55), one end of the liquid replenishing pipeline (31) is connected to the hydrogen storage container (10), and the fifth control valve (55) is arranged on the liquid replenishing pipeline (31); And / or, the hydrogen supply system (100) further comprises: a return air pipeline (32) and a sixth control valve (56), one end of the return air pipeline (32) is connected to the hydrogen storage container (10), and the sixth control valve (56) is arranged on the return air pipeline (32); And / or, the hydrogen supply system (100) further comprises: a discharge pipeline (33) and a seventh control valve (57), one end of the discharge pipeline (33) is connected to the hydrogen storage container (10), and the seventh control valve (57) is arranged on the discharge pipeline (33).

9. The hydrogen supply system according to claim 1, characterized in that: The hydrogen supply system (100) further comprises: a plurality of safety pipelines and a plurality of safety valves, one end of each of the plurality of safety pipelines being connected to the hydrogen storage container (10), and the plurality of safety valves being arranged on the plurality of safety pipelines; The plurality of safety valves include: a first safety valve (61), a second safety valve (62) and a third safety valve (63); the plurality of safety pipelines include: a first safety pipeline (34), a second safety pipeline (35) and a third safety pipeline (36); the first safety valve (61) is arranged on the first safety pipeline (34); the second safety valve (62) is arranged on the second safety pipeline (35); and the third safety valve (63) is arranged on the third safety pipeline (36).

10. A vehicle, characterized in that: It comprises a hydrogen supply system (100) according to any one of claims 1 to 9.

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