Hydrogen power system and vehicle

Abstract

This disclosure relates to a hydrogen power system and vehicle. The hydrogen power system includes a hydrogen supply pipeline, on which a hydrogen storage device, a pressure regulating component, and a power unit are sequentially connected. A closable extraction component is connected to the hydrogen supply pipeline between the pressure regulating component and the power unit. By adding a closable extraction component to the hydrogen supply pipeline, and through the coordinated operation of the extraction component and the pressure regulating component, the system can quickly respond to changes in the pressure demand of the power unit, thus improving the response speed of the hydrogen power system. This avoids the sudden increase in pipeline pressure caused by the lag in regulation in traditional systems, improving the system's operational stability. It also expands the pressure regulation range that the hydrogen power system can adapt to, enhancing the system's versatility.

Description

Technical Field

[0001] This disclosure relates to the field of hydrogen-powered vehicles, and more specifically, to a hydrogen-powered system and vehicle. Background Technology

[0002] In existing hydrogen-powered vehicles, the hydrogen supply to the hydrogen power system primarily relies on high-pressure hydrogen storage tanks and low-pressure liquid hydrogen tanks to supply hydrogen to various fuel cells or hydrogen internal combustion engines. During the hydrogen supply process, the valve at the mouth of the hydrogen storage tank receives a command from the hydrogen system controller and opens. The hydrogen stored in the tank then passes through the hydrogen outlet pipeline and is adjusted by a pressure reducing valve to a pressure suitable for the operating pressure of the fuel cell system or hydrogen internal combustion engine. However, in actual vehicle operation, the hydrogen pressure in the pipeline often fluctuates. Adjusting the pipeline pressure through the pressure reducing valve leads to a slow system response. Often, during the adjustment process, the pressure in the hydrogen inlet pipeline exceeds the pressure threshold, triggering a safety valve to release pressure to the atmosphere in an emergency, thus ensuring the normal operation of the vehicle's fuel cell system or hydrogen internal combustion engine. This adjustment method not only makes the entire hydrogen power system respond too slowly but also causes frequent starting and stopping of the pressure reducing valve and safety valve, shortening their lifespan. Utility Model Content

[0003] The purpose of this disclosure is to provide a hydrogen power system and vehicle to improve the response speed of the hydrogen power system.

[0004] To achieve the above objectives, this disclosure provides a hydrogen power system, including a hydrogen supply pipeline, wherein a hydrogen storage device, a pressure regulating component, and a power component are sequentially connected to the hydrogen supply pipeline, and an openable and closable air extraction component is connected in parallel to the hydrogen supply pipeline, wherein the air extraction component is connected between the pressure regulating component and the power component.

[0005] Optionally, the pumping assembly includes a vacuum storage tank and a vacuum pump connected in sequence, with the vacuum storage tank located upstream of the vacuum pump.

[0006] Optionally, the pumping assembly includes a one-way valve disposed upstream of the vacuum storage tank.

[0007] Optionally, the pressure regulating assembly includes an overflow valve and a pressure regulating valve connected in sequence.

[0008] Optionally, the pressure regulating assembly further includes a safety valve located between the air extraction assembly and the pressure regulating valve.

[0009] Optionally, a bottle neck valve is provided at the outlet of the hydrogen storage device.

[0010] Optionally, a sensor is connected to the hydrogen supply line.

[0011] Optionally, the sensor includes a first sensor and a second sensor, the first sensor being disposed between the hydrogen storage device and the pressure regulating assembly, and the second sensor being disposed between the power component and the pumping assembly.

[0012] Optionally, a three-way valve is provided on the hydrogen supply pipeline, and the three-way valve is connected to the gas extraction assembly.

[0013] According to a second aspect of this disclosure, a vehicle is provided, including the aforementioned hydrogen power system.

[0014] The above technical solution adds an openable and closable extraction component to the hydrogen supply pipeline. Through the coordinated operation of the extraction component and the pressure regulation component, the system can quickly respond to changes in the pressure demand of the power components, improving the responsiveness of the hydrogen power system. This avoids the sudden increase in pipeline pressure caused by the lag in regulation in traditional systems, improving the system's operational stability. It also expands the pressure regulation range that the hydrogen power system can adapt to, enhancing its versatility.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of a hydrogen power system according to one embodiment of the present disclosure.

[0018] Figure 2 This is a schematic diagram of a hydrogen power system according to another embodiment of the present disclosure.

[0019] Figure 3 This is a flowchart of a control method for a hydrogen power system according to one embodiment of the present disclosure.

[0020] Figure 4 This is a flowchart of a control method for a hydrogen power system according to another embodiment of the present disclosure.

[0021] Explanation of reference numerals in the attached figures

[0022] 10-Hydrogen supply pipeline; 100-Gas storage tank; 1-Hydrogen storage device; 11-Bottle neck valve; 2-Pressure regulating component; 21-Overflow valve; 22-Pressure regulating valve; 23-Safety valve; 3-Power component; 4-Evacuation component; 41-Vacuum storage tank; 42-Vacuum pump; 43-One-way valve; 5-Three-way valve; 61-First sensor; 62-Second sensor. Detailed Implementation

[0023] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0024] In this disclosure, unless otherwise stated, the terms "first," "second," etc., are used to distinguish different components and are not of sequential or importance. Furthermore, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0025] According to one embodiment of this disclosure, such as Figure 1 and Figure 2 As shown, a hydrogen power system is provided, including a hydrogen supply pipeline 10, a hydrogen storage device 1, a pressure regulating component 2 and a power component 3 connected in sequence on the hydrogen supply pipeline 10, and an openable and closable air extraction component 4 connected to the hydrogen supply pipeline 10, which is connected between the pressure regulating component 2 and the power component 3.

[0026] Through the above technical solution, an openable and closable air extraction component 4 is added to the hydrogen supply pipeline 10. Through the coordinated work of the air extraction component 4 and the pressure regulating component 2, the response speed of the hydrogen power system can be improved by quickly responding to the pressure demand changes of the power component 3. This can avoid the sudden increase in pipeline pressure caused by the adjustment lag of the traditional system, improve the working stability of the system, and at the same time improve the pressure regulation range that the hydrogen power system can adapt to, thus improving the versatility of the system.

[0027] Furthermore, such as Figure 2 As shown, the gas extraction component 4 can be connected to a gas storage tank 100, and the gas storage tank 100 can be switched on and off connected to the hydrogen supply pipeline 10, so as to store the hydrogen extracted by the gas extraction component 4 during regulation, and supply the extracted hydrogen to the hydrogen supply pipeline 10 according to the pressure of the hydrogen supply pipeline 10, which can effectively avoid the waste of hydrogen caused by emergency depressurization and improve the hydrogen utilization rate.

[0028] It should be noted that the power component 3 can be at least one of a hydrogen fuel cell and a hydrogen internal combustion engine. That is, the hydrogen supply pipeline 10 can be connected only to the hydrogen fuel cell, only to the hydrogen internal combustion engine, or both simultaneously; this disclosure does not limit this. A three-way valve 5 can be installed on the hydrogen supply pipeline 10 to connect to the extraction assembly 4. The two flow ports of the three-way valve 5 on the hydrogen supply pipeline 10 can remain open to ensure a stable hydrogen supply to the hydrogen power system. The flow ports of the three-way valve 5 connected to the extraction assembly 4 can be controlled to open and close according to control requirements. Alternatively, the pipeline of the extraction assembly 4 can be connected to the hydrogen supply pipeline 10, and the pipeline can be equipped with an openable and closable valve; this disclosure does not limit this.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, the evacuation assembly 4 may include a vacuum storage tank 41 and a vacuum pump 42 connected in sequence, with the vacuum storage tank 41 located upstream of the vacuum pump 42. When the pressure fluctuation in the hydrogen supply line 10 is small, the vacuum energy of the vacuum storage tank 41 can be used preferentially, i.e., the negative pressure of the vacuum storage tank 41 is used to evacuate the hydrogen supply line 10, reducing the number of start-stop cycles of the vacuum pump 42, lowering its power consumption, and extending its lifespan. When the pressure fluctuation in the hydrogen supply line 10 is large, the vacuum pump 42 is used for evacuation. The specific fluctuation ranges of the vacuum storage tank 41 and the vacuum pump 42 will be described in detail below.

[0030] Here, as Figure 2 As shown, in the scheme where the pumping assembly 4 is connected to the gas storage tank 100, the vacuum storage tank 41 and the vacuum pump 42 can be connected to the gas storage tank 100 respectively. Here, the vacuum pump 42 can be directly connected to the gas storage tank 100. When the vacuum pump 42 pumps gas, it can directly supply the pumped hydrogen to the gas storage tank 100 for storage. Since the pumping method of the vacuum storage tank 41 is to use the pressure difference between the vacuum storage tank 41 and the hydrogen supply pipeline 10, a closable valve and a gas pump can be connected between the vacuum storage tank 41 and the gas storage tank 100. When the gas stored in the vacuum storage tank 41 reaches a certain amount and can no longer form a pressure difference with the hydrogen supply pipeline 10, the valve and the gas pump between the vacuum storage tank 41 and the gas storage tank 100 are opened to introduce the gas in the vacuum storage tank 41 into the gas storage tank 100. At the same time, the gas pressure in the vacuum storage tank 41 can be reduced, so that the vacuum storage tank 41 can continue to perform negative pressure pumping.

[0031] To prevent hydrogen from flowing back into the hydrogen supply line 10 and affecting the pumping effect of the pumping assembly 4, such as... Figure 1 and Figure 2 As shown, the pumping assembly 4 may also include a one-way valve 43 located upstream of the vacuum storage tank 41. The one-way valve 43 is located upstream of the vacuum storage tank 41 and the vacuum pump 42 to ensure the uniqueness of the pumping direction.

[0032] According to one embodiment of this disclosure, such as Figure 1 and Figure 2 As shown, the pressure regulating assembly 2 includes an overflow valve 21, a pressure regulating valve 22, and a safety valve 23 connected in sequence. The overflow valve 21 can close when the pressure in the hydrogen supply line 10 increases abnormally, thereby cutting off the connection between the hydrogen storage device 1 and the power unit 3. The pressure regulating valve 22 can regulate the hydrogen flow rate in the hydrogen supply line 10. When high pressure is required, the opening of the pressure regulating valve 22 can be increased; when low pressure is required, the opening of the pressure regulating valve 22 can be decreased. The safety valve 23 can open when the pressure in the hydrogen supply line 10 suddenly increases beyond a set value, so as to quickly release hydrogen into the atmosphere, achieving rapid pressure relief of the hydrogen supply line 10 and preventing safety accidents such as explosions.

[0033] It should be noted that a bottle neck valve 11 is provided at the outlet of the hydrogen storage device 1 to control the connection and disconnection between the hydrogen storage device 1 and the hydrogen supply pipeline 10. A sensor can be installed on the hydrogen supply pipeline 10 to obtain the hydrogen pressure on the hydrogen supply pipeline 10, or a first sensor 61 and a second sensor 62 can be installed respectively. The first sensor 61 can be installed between the hydrogen storage device 1 and the pressure regulating component 2, specifically, it can be located between the bottle neck valve 11 and the overflow valve 21. The second sensor 62 can be installed between the pumping component 4 and the power component 3 to obtain the hydrogen pressure at different locations on the hydrogen supply pipeline 10. This disclosure does not limit this.

[0034] Based on the above solutions, this disclosure also provides a vehicle that includes the aforementioned hydrogen power system and possesses all the beneficial effects of the aforementioned hydrogen power system, which will not be elaborated further here. It should be noted that the vehicle may include a braking system, which is also equipped with an extraction assembly 4. The braking system and the hydrogen power system of the vehicle may have separate extraction assemblies 4, or they may share a single extraction assembly 4; this disclosure does not limit this. The power component 3 may be at least one of a hydrogen fuel cell and a hydrogen internal combustion engine, enabling the vehicle's hydrogen power system to be a hydrogen fuel cell power system, a hydrogen internal combustion engine power system, or a hybrid power system of a hydrogen fuel cell and a hydrogen internal combustion engine; this disclosure does not limit this.

[0035] According to another aspect of this disclosure, such as Figure 3 As shown, a control method for a hydrogen power system is provided. Using the aforementioned hydrogen power system, the control method includes step 201, namely, obtaining the current pressure P between the power component 3 and the pumping assembly 4. 实际 And the target pressure P corresponding to the current operating conditions. 目标 The current pressure P between power component 3 and suction assembly 4 实际 This can be obtained through the second sensor 62 mentioned above. After obtaining the two values, the difference between them, ΔP = P, can be calculated. 实际 -P 目标After obtaining the difference ΔP, step 202 is executed to determine if ΔP > P1. When the difference ΔP is not greater than the first deviation threshold P1, the system pressure is stable and there is no need to use the pumping assembly 4 for regulation. The pumping assembly 4 can be disconnected from the hydrogen supply line 10, and the opening of the pressure regulating valve 22 can be fixed to maintain normal hydrogen inlet pressure balance. If the difference ΔP is greater than the first deviation threshold P1, it indicates that the pressure value in the hydrogen supply line 10 is fluctuating too much. Step 203 is executed, that is, the pumping assembly 4 is controlled to pump air from the hydrogen supply line 10. Specifically, the flow port of the three-way valve 5 connected to the pumping assembly 4 can be opened, and the pumping assembly 4 can be opened at the same time to allow the pumping assembly 4 to pump air from the hydrogen supply line 10. The extraction component 4 can quickly respond to changes in the pressure demand of the power component 3, thereby improving the response speed of the hydrogen power system. By regulating the pressure of the hydrogen supply pipeline 10 through the extraction component 4, it can not only avoid the waste of hydrogen caused by the sudden increase in pipeline pressure due to the lag in regulation in traditional systems, but also improve the working stability and hydrogen utilization rate of the system. At the same time, it can also improve the pressure regulation range that the hydrogen power system can adapt to, thereby improving the versatility of the system.

[0036] It should be noted that if △P < -P1, it means that the pressure in the hydrogen supply line 10 is insufficient. In this case, the pressure regulating valve 22 can be adjusted to increase its opening to ensure the gas supply to the power unit 3.

[0037] Furthermore, such as Figure 4 As shown, when the pumping assembly 4 includes a vacuum storage tank 41 and a vacuum pump 42 connected in sequence, when the difference ΔP is greater than the first deviation threshold P1, and the pumping assembly 4 is controlled to pump the hydrogen supply line 10, a second deviation threshold P2 with a value greater than the first deviation threshold P1 can be further set. Since the pumping capacity of the vacuum pump 42 is higher than that of the vacuum storage tank 41, after step 201, step 301 can be executed, that is, judging ΔP > P2. If the difference ΔP is greater than the second deviation threshold P2, step 302 can be executed, that is, controlling the vacuum pump 42 to pump the hydrogen supply line 10. If the difference ΔP is not greater than the second deviation threshold P2, then step 303 is executed, that is, judging P1 < ΔP ≤ P2. If P1 < ΔP ≤ P2, then step 304 is executed, and the vacuum storage tank 41 is controlled to pump the hydrogen supply line 10. This can reduce the number of times the vacuum pump 42 starts and stops, reduce the power consumption of the vacuum pump 42, and extend the life of the vacuum pump 42. Here, the first deviation threshold P1 can be set to 0.01MPa, and the second deviation threshold P2 can be set to 0.05MPa. The first deviation threshold P1 and the second deviation threshold P2 can also be set according to requirements, and this disclosure does not limit them.

[0038] The pumping power of vacuum pump 42 can be adjusted according to the value of the difference ΔP. When the difference ΔP is too large, the power of vacuum pump 42 can be appropriately increased to improve its pumping capacity. When the difference ΔP is small, a smaller power can be used when starting vacuum pump 42 to reduce energy consumption while ensuring the control effect. It should be noted that since vacuum pump 42 requires hundreds of milliseconds of mechanical response time to go from complete stop to full power operation, low-speed idling can eliminate this delay. Therefore, when vacuum pump 42 is not needed to pump hydrogen supply line 10, vacuum pump 42 can be turned off to reduce energy consumption, or it can be kept at a low power to improve the response speed at startup. This disclosure does not limit this.

[0039] Furthermore, the target pressure P corresponding to the current operating condition. 目标 When the pressure changes, the control method may also include the following steps: obtaining the target pressure P under the changed operating conditions. 变动后 Compared with the target pressure P under the original operating conditions 变动前 The difference △P 目标 In the difference △P 目标 When the pressure exceeds the threshold P3, the vacuum pump 42, maintaining a constant power level, is no longer sufficient to control the pressure in the hydrogen supply line 10. Therefore, it is necessary to first increase the operating power of the vacuum pump 42 and control it to evacuate the hydrogen supply line 10 until the current pressure P in the hydrogen supply line 10 reaches the threshold P3. 实际 When the pressure is below the adjustment threshold P0, the pressure regulating component 2 is then controlled to adjust the intake pressure. The pressure regulating component 2 controls the intake pressure to reach the target pressure P under the changed operating conditions. 变动后 Then, the operating power of vacuum pump 42 is reduced to maintain normal control. Here, the target pressure P under the changed operating conditions is... 变动后The FCU (Fuel Cell Control Unit) can predict demand. For example, during rapid acceleration, the VCU (Vehicle Control Unit) receives the accelerator pedal signal and transmits it to the FCU. The FCU can then anticipate a sudden increase in fuel cell power demand and preset a target pressure. This allows the vacuum pump 42 to be started at high power in advance, quickly reducing the pressure in the hydrogen supply line 10. The variable threshold P3 can be set according to actual needs. For example, when the power component 3 is a hydrogen fuel cell, the required hydrogen inlet pressure is generally between 1.0 MPa and 1.8 MPa; when the power component 3 is a hydrogen internal combustion engine, the required hydrogen inlet pressure is generally between 2.5 MPa and 4 MPa. In vehicles with hybrid powertrains, where the power unit 3 includes both a hydrogen fuel cell and a hydrogen internal combustion engine, when the drive mode needs to be changed from hydrogen fuel cell drive to hydrogen internal combustion engine drive, or vice versa, the hydrogen inlet pressure typically needs to be changed by more than 1 MPa. Therefore, the change threshold P3 can be set to 1 MPa. Of course, it can also be set to other values ​​as needed, and this disclosure does not limit this. The adjustment threshold P0 can also be set as needed. 变动后 >P 变动前 or P 变动后 <P 变动前 At that time, the adjustment threshold P0 can be set to the same value for all cases, and also according to P 变动后 >P 变动前 or P 变动后 <P 变动前 The target operating conditions are different, or based on the difference △P 目标 The different adjustment thresholds P0 are divided into different levels according to the changes in the value, and the adjustment thresholds P0 are set to different values. This disclosure does not limit this.

[0040] It should be noted that, taking the pressure regulating valve 22 in the pressure regulating assembly 2 as an example, when P 变动后 >P 变动前 At this point, the pressure in the hydrogen supply line 10 needs to be increased. However, if the pressure is increased too much, directly increasing the pressure regulating component 2 will cause a sudden increase in the hydrogen flow rate in the hydrogen supply line 10, leading to buildup and air resistance, which will affect the system response speed. Therefore, it is necessary to first increase the operating power of the vacuum pump 42 and control the vacuum pump 42 to quickly evacuate the hydrogen supply line 10 until the current pressure P of the hydrogen supply line 10 is reached. 实际If the pressure is below the adjustment threshold P0, meaning the original hydrogen content in the hydrogen supply line 10 will not be affected by the sudden increase in intake gas, then the opening of the pressure regulating valve 22 is increased. This will increase the intake gas in the hydrogen supply line 10. Since the vacuum pump 42 is already operating at high power, the hydrogen will not generate air resistance in the hydrogen supply line 10. After adjusting the pressure regulating valve 22 to a suitable opening, the power of the vacuum pump 42 is gradually reduced until the pressure in the hydrogen supply line 10 stabilizes. Then, the flow port connecting the three-way valve 5 to the pumping assembly 4 is closed, and the vacuum pump 42 is either turned off or kept running at low speed. Here, the operating power of the vacuum pump 42 can be increased to between 80% and 100% of its full power, and maintaining the vacuum pump 42 at low speed can be adjusted to 30% of its full power; this disclosure does not limit this.

[0041] When P 变动后 <P 变动前 At this point, the pressure in the hydrogen supply line 10 needs to be reduced. Because the pressure reduction range is too large, the operating power of the vacuum pump 42 needs to be increased to quickly pump gas and improve system response efficiency. The vacuum pump 42 pumps gas until the current pressure P in the hydrogen supply line 10 is reached. 实际 If the hydrogen content in the hydrogen supply line 10 is less than the adjustment threshold P0, meaning the original hydrogen content has decreased to a level suitable for the current operating conditions, then reduce the opening of the pressure regulating valve 22 to decrease the inlet flow rate of the hydrogen supply line 10. Then gradually reduce the power of the vacuum pump 42 until the pressure in the hydrogen supply line 10 stabilizes. After that, close the flow port in the three-way valve 5 connected to the pumping assembly 4, and then turn off the vacuum pump 42 or keep the vacuum pump 42 running at low speed.

[0042] According to one embodiment of this disclosure, when the current operating condition of the hydrogen power system is idling, the vacuum pump 42 can be controlled to evacuate the hydrogen supply line 10 until the current pressure P of the hydrogen supply line 10 is reached. 实际When the pressure in the hydrogen supply pipeline 10 drops below the first safety threshold P4, the hydrogen demand decreases sharply during idling (no power output to the wheels, maintaining the power component 3 at a minimum operating level). To prevent hydrogen stagnation in the hydrogen supply pipeline 10, the pressure can be controlled to be below the first safety threshold P4 to ensure safety. The first safety threshold P4 can be set according to the actual hydrogen demand during idling, and this disclosure does not limit it. At this time, the first pressure recovery rate v1 between the hydrogen storage device 1 and the pressure regulating component 2 within the interval time t, and the second pressure recovery rate v2 between the power component 3 and the extraction component 4 within the interval time t can be obtained. Specifically, the pressure values ​​between the hydrogen storage device 1 and the pressure regulating component 2, and between the power component 3 and the extraction component 4 can be monitored by the first sensor 61 and the second sensor 62. When the first pressure recovery rate v1 or the second pressure recovery rate v2 is greater than the rate threshold v, the hydrogen supply pipeline 10 is determined to be in a leaking state and needs to be repaired. Here, when the hydrogen supply line 10 is leaking, the hydrogen storage device 1 can be disconnected from the pressure regulating component 2, and the vacuum pump 42 can be controlled to evacuate the hydrogen supply line 10, venting the residual hydrogen to the outside of the vehicle roof. This not only improves the safety of personnel during maintenance but also allows for timely detection of leaks, reducing the risk of hydrogen leakage during operation. Based on the positions of the first sensor 61 and the second sensor 62, the values ​​of the first pressure recovery rate v1 and the second pressure recovery rate v2 can further assist in confirming the location of the leak, thereby narrowing down the investigation scope and improving investigation efficiency and maintenance convenience.

[0043] According to one embodiment of this disclosure, when the hydrogen power system is shut down, the hydrogen storage device 1 can be disconnected from the pressure regulating component 2 first, and then the evacuation component 4 can be controlled to evacuate the hydrogen supply pipeline 10 until the pressure in the hydrogen supply pipeline 10 is lower than the second safety threshold P5. A pressure lower than the second safety threshold P5 can be considered as the hydrogen supply pipeline 10 being emptied, thus preventing the accumulation of leaked hydrogen caused by vehicle parking and greatly improving safety during vehicle parking. Here, the second safety threshold P5 can be set according to requirements; it can be 0, or a smaller value such as 0.01 MPa or 0.02 MPa. This disclosure does not limit this setting.

[0044] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0046] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A hydrogen-powered system, characterized in that, It includes a hydrogen supply pipeline, on which a hydrogen storage device, a pressure regulating component and a power component are connected in sequence. An openable and closable air extraction component is connected in parallel to the hydrogen supply pipeline, and the air extraction component is connected between the pressure regulating component and the power component.

2. The hydrogen power system according to claim 1, characterized in that, The pumping assembly includes a vacuum storage tank and a vacuum pump connected in sequence, with the vacuum storage tank located upstream of the vacuum pump.

3. The hydrogen power system according to claim 2, characterized in that, The pumping assembly includes a one-way valve located upstream of the vacuum storage tank.

4. The hydrogen power system according to claim 1, characterized in that, The pressure regulating assembly includes an overflow valve and a pressure regulating valve connected in sequence.

5. The hydrogen power system according to claim 4, characterized in that, The pressure regulating assembly also includes a safety valve located between the air extraction assembly and the pressure regulating valve.

6. The hydrogen power system according to claim 1, characterized in that, A bottle neck valve is installed at the outlet of the hydrogen storage device.

7. The hydrogen power system according to claim 1, characterized in that, A sensor is connected to the hydrogen supply pipeline.

8. The hydrogen power system according to claim 7, characterized in that, The sensor includes a first sensor and a second sensor. The first sensor is disposed between the hydrogen storage device and the pressure regulating assembly, and the second sensor is disposed between the power component and the pumping assembly.

9. The hydrogen power system according to claim 1, characterized in that, A three-way valve is installed on the hydrogen supply pipeline, and the three-way valve is connected to the gas extraction assembly.

10. A vehicle, characterized in that, The hydrogen-powered system includes any one of claims 1-9.

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