Integrated adjustable ejector for vehicle-mounted hydrogen supply circulating system

Abstract

The invention discloses an integrated adjustable ejector for a vehicle-mounted hydrogen supply circulating system, which relates to the technical field of ejectors for vehicle-mounted hydrogen supply circulating systems and comprises a hydrogenation pipeline, a working pipeline and a circulating return pipeline. The circulating return pipeline comprises an integrated adjustable ejector, a hydrogen compressor, a steam-water separator, a circulating return pipeline one-way valve and a pressure reducing valve; the integrated adjustable ejector comprises a shell, a hydrogen inlet and outlet, a storage cavity, a valve, a control device, an execution controller and a monitoring and temperature control module. The integrated adjustable ejector is installed on the circulating backflow pipeline, the monitoring and temperature control module is integrated on the ejector, the hydrogen flow, pressure and temperature are monitored in real time, and the hydrogen temperature is adjusted so that stable operation can be achieved; the fuel cell reactor hydrogen flow sensor converts flow required by a fuel cell reactor into an electric signal, transmits the electric signal to the control device, and controls the execution controller to adjust the valve, so that dynamic optimization is realized, and various working condition requirements of a hydrogen fuel cell automobile are met.

Description

Technical Field

[0001] The invention relates to the technical field of ejectors for a vehicle-mounted hydrogen supply circulation system, and in particular to an integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system. Background Art

[0002] The low-carbon development of automobiles is an important strategy to address global climate change and reduce greenhouse gas emissions. As environmental problems become increasingly serious, traditional internal combustion engine vehicles are facing increasing pressure due to their high emission characteristics, so the automotive industry is actively promoting the development of low-carbon technologies. Hydrogen energy is widely regarded as one of the best choices to replace traditional fuel energy due to its clean, pollution-free and high energy density. The use of hydrogen fuel cell vehicles can not only achieve zero-emission and low-noise driving, but also only produce water vapor during operation, which is extremely friendly to the environment. Compared with traditional internal combustion engine vehicles, hydrogen has a significantly higher energy density, which can provide longer driving range and faster refueling speed, making it a highly anticipated clean energy alternative. In the automotive industry, the application of hydrogen energy technology is regarded as an important direction for future transportation. Major automakers are actively exploring the application of hydrogen fuel cell technology in vehicle power systems, investing a lot of resources in research and development and promotion to promote the transition from traditional fuel vehicles to hydrogen energy vehicles. Therefore, its application in the automotive field has gradually attracted attention, especially hydrogen fuel cell vehicles have become an important application of hydrogen in the transportation field. The on-board hydrogen supply circulation system is the core component of hydrogen fuel cell vehicles. The key to efficient and stable supply and control of hydrogen lies in the ejector. With the popularization of ejectors in hydrogen fuel cell vehicles, it is necessary to consider real-time monitoring of the temperature, pressure, and flow of hydrogen entering the fuel cell reactor, as well as controlling the change in hydrogen temperature. At the same time, it is also necessary to consider precise and intelligent adjustment of the injection amount of hydrogen, and achieve dynamic optimization to meet the various working conditions of hydrogen fuel cell vehicles and the normal operation of the fuel cell reactor under various power conditions, as well as the recycling of hydrogen. Summary of the invention

[0003] The present invention provides an integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system to solve the problems raised in the above background technology. To solve the above technical problems, the technical solution adopted by the present invention is: An integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, comprising a hydrogenation pipeline, a working pipeline, and a circulation return pipeline, wherein the circulation return pipeline comprises an integrated adjustable ejector, a hydrogen compressor, a steam-water separator, a circulation return pipeline check valve, and a pressure reducing valve; the integrated adjustable ejector comprises an ejector outer shell, a hydrogen inlet, a hydrogen outlet, a storage chamber, a valve, a control device, an execution controller, a monitoring module, and a temperature control module; the storage chamber is located inside the ejector outer shell and is used to temporarily store high-pressure hydrogen and low-pressure hydrogen; the ejector outer shell is used to provide an installation position for the control device and the execution controller, and the control device and the execution controller are installed inside the ejector outer shell; the monitoring module comprises a flow sensor device, pressure sensor, temperature sensor; the temperature control module includes a thermistor, a temperature controller, a heating element, and a cooling element; the control device includes a first control device, a second control device, and a third control device; the execution controller includes a first execution controller, a second execution controller, and a third execution controller; the first control device is located above the first execution controller; the second control device is located above the second execution controller; the third control device is located above the third execution controller; wherein the integrated adjustable ejector includes a stop working condition, a normal working condition, an abnormal hydrogen temperature condition, and a high-pressure hydrogen condition; under the stop working condition, the control device is not powered on, and the hydrogen inlet and outlet are closed, so that the hydrogen inlet and The outlet is not connected to the storage chamber; under the normal working condition, the first control device, the second control device, and the third control device are powered on at the same time; the first control device controls the first executive controller to open the adjustable contraction tube valve, so that the adjustable contraction tube, the mixing chamber, the pressure diffusion chamber, and the hydrogen monitoring flow channel are interconnected in sequence; the second control device controls the second executive controller to open the normal hydrogen flow channel valve, so that the hydrogen monitoring flow channel, the normal hydrogen flow channel, and the hydrogen mixing flow channel are interconnected; the fuel cell reactor hydrogen flow sensor converts the flow required by the fuel cell reactor into an electrical signal in the form of data according to the operating status and needs of the hydrogen fuel cell vehicle and transmits it to the third control device, and the third control device controls the third executive controller to accurately and intelligently adjust the hydrogen mixed flow outlet valve The size of the door opens the hydrogen mixed flow outlet; under the abnormal hydrogen temperature working condition, the first control device, the second control device, and the third control device are powered on at the same time; the first control device controls the first execution controller to open the adjustable shrink tube valve, so that the adjustable shrink tube, the mixing chamber, the pressure diffusion chamber, and the hydrogen monitoring flow channel are interconnected in sequence; the second control device controls the second execution controller to open the normal hydrogen flow channel valve and the hydrogen temperature abnormal flow channel valve; the hydrogen monitoring flow channel, the normal hydrogen flow channel, and the hydrogen mixing flow channel are interconnected in sequence; the hydrogen monitoring flow channel, the hydrogen temperature abnormal flow channel and the hydrogen mixing flow channel are connected through the temperature control module, and the temperature control module can adjust the hydrogen temperature according to the actual temperature conditions to ensure stable operation within the set range and realize temperature control of hydrogen;The fuel cell reactor hydrogen flow sensor converts the flow required by the fuel cell reactor into an electrical signal in the form of data according to the operating status and needs of the hydrogen fuel cell vehicle and transmits it to the third control device. The third control device controls the third execution controller to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve to open the hydrogen mixed flow outlet; under the high-pressure hydrogen working condition, the first control device, the second control device, and the third control device are powered on at the same time; the first control device controls the first execution controller to open the adjustable contraction tube valve, so that the adjustable contraction tube, the mixing chamber, the pressure diffusion chamber, and the hydrogen monitoring flow channel are interconnected in sequence; the second control device controls the second execution controller to open the normal hydrogen flow channel valve, High-pressure hydrogen flow channel valve; hydrogen monitoring flow channel, high-pressure hydrogen flow channel, and high-pressure hydrogen outlet are interconnected in sequence, and high-pressure hydrogen reaches the circulation reflux pipeline through the high-pressure hydrogen outlet, and returns to the low-pressure hydrogen reflux inlet through the pressure reducing valve and the hydrogen compressor to realize hydrogen recycling; hydrogen monitoring flow channel, normal hydrogen flow channel, and hydrogen mixing flow channel are interconnected in sequence; the fuel cell reactor hydrogen flow sensor converts the flow required by the fuel cell reactor into an electrical signal in the form of data according to the operating status and needs of the hydrogen fuel cell vehicle and transmits it to the third control device. The third control device controls the third execution controller to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve and open the hydrogen mixed flow outlet. ;

[0004] Furthermore, in the aforementioned integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, the hydrogen inlet includes a high-pressure hydrogen injection inlet and a low-pressure hydrogen reflux inlet; the hydrogen outlet includes a high-pressure hydrogen outlet and a hydrogen mixed flow outlet.

[0005] Furthermore, the aforementioned integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, the valves include an adjustable retractable tube valve, a hydrogen temperature abnormal flow channel valve, a normal hydrogen flow channel valve, a high-pressure hydrogen flow channel valve, and a hydrogen mixed flow outlet valve.

[0006] Furthermore, the aforementioned integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, the storage chamber includes a high-pressure hydrogen storage chamber, a low-pressure hydrogen storage chamber, an adjustable contraction tube, a mixing chamber, a pressure diffusion chamber, a hydrogen temperature abnormal flow channel, a normal hydrogen flow channel, a high-pressure hydrogen flow channel, a hydrogen mixing flow channel, and a hydrogen monitoring flow channel; the high-pressure hydrogen storage chamber is located to the right of the high-pressure hydrogen injection inlet; the low-pressure hydrogen storage chamber is located below the low-pressure hydrogen reflux inlet; the high-pressure hydrogen outlet is located below the high-pressure hydrogen flow channel; the adjustable contraction tube, the mixing chamber, the pressure diffusion chamber, and the hydrogen monitoring flow channel are connected through an adjustable contraction tube valve; the hydrogen temperature abnormal flow channel is connected to the hydrogen monitoring flow channel through the hydrogen temperature abnormal flow channel valve; the normal hydrogen flow channel is connected to the hydrogen monitoring flow channel through the normal hydrogen flow channel valve; the hydrogen monitoring flow channel, the high-pressure hydrogen flow channel, and the high-pressure hydrogen outlet are connected through the high-pressure hydrogen flow channel valve; the hydrogen mixing flow channel is respectively connected to the hydrogen temperature abnormal flow channel and the normal hydrogen flow channel.

[0007] Furthermore, in the aforementioned integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, the adjustable retractable tube is circumferentially wrapped around the first execution controller; the second execution controller is located above the joints between the hydrogen monitoring flow channel and the hydrogen temperature abnormal flow channel, the normal hydrogen flow channel, and the high-pressure hydrogen flow channel; the third execution controller is located above the hydrogen mixing flow channel; the flow sensor, pressure sensor, and temperature sensor are all located inside the hydrogen monitoring flow channel; and the temperature control module is located inside the hydrogen temperature abnormal flow channel.

[0008] Furthermore, the aforementioned integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, the hydrogenation pipeline includes a hydrogenation port, a hydrogenation port pressure gauge, a hydrogenation port one-way valve, and a hydrogenation port filter.

[0009] Furthermore, in the aforementioned integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, the combination valve is installed on the working pipeline; the working pipeline between the combination valve and the bottle mouth combination valve is sequentially installed with an inlet check valve and an inlet filter; the working pipeline between the combination valve and the fuel cell reactor is sequentially installed with an outlet check valve, an integrated adjustable ejector, a circulation reflux pipeline, an outlet filter, and a fuel cell reactor hydrogen flow sensor.

[0010] Furthermore, the aforementioned integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, the combination valve includes an excess flow valve, a primary pressure reducing valve, a medium pressure sensor, and a secondary pressure reducing valve.

[0011] The present invention provides an integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system. It has the following beneficial effects: 1. The present invention absorbs the hydrogen at the high-pressure hydrogen outlet of the integrated adjustable ejector and the unreacted hydrogen of the fuel cell reactor by designing a circulating reflux pipeline. The hydrogen at the high-pressure hydrogen outlet is reduced in pressure and stabilized by a pressure reducing valve and the unreacted hydrogen of the fuel cell reactor is filtered out of water and other impurities by a steam-water separator and then enters the hydrogen compressor together with the low-pressure hydrogen storage chamber through a low-pressure hydrogen reflux inlet, thereby achieving pressure reduction, stabilization and recycling of part of the high-pressure hydrogen of the integrated adjustable ejector, avoiding hydrogen waste and improving hydrogen utilization.

[0012] 2. The present invention integrates a monitoring module and a temperature control module into the adjustable ejector to monitor the flow, pressure and temperature of the hydrogen in the integrated adjustable ejector in real time. That is, when the temperature is abnormal, the hydrogen temperature abnormal flow channel valve will be opened to enter the hydrogen temperature abnormal flow channel. The temperature control module can adjust the hydrogen temperature according to the temperature conditions to ensure stable operation within the set range, thereby achieving temperature control; and when the hydrogen pressure is too high, the high-pressure hydrogen flow channel valve will be opened to enter the high-pressure hydrogen flow channel, and enter the circulation reflux pipeline through the high-pressure hydrogen outlet.

[0013] 3. The present invention installs a fuel cell reactor hydrogen flow sensor on the working pipeline of the integrated adjustable ejector and the fuel cell reactor. The sensor converts the flow required by the fuel cell reactor into an electrical signal according to the operating status and requirements of the hydrogen fuel cell vehicle and transmits it to the third control device. The third control device controls the third execution controller to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve to achieve dynamic optimization, meet the normal operation of the fuel cell reactor under various power conditions and various operating requirements of the hydrogen fuel cell vehicle, and thus adapt to various driving conditions.

[0014] 4. The present invention increases the reflux hydrogen flow of the integrated adjustable ejector by installing a hydrogen compressor at the entrance of the integrated adjustable ejector in the circulation reflux pipeline, so that the hydrogen at the high-pressure hydrogen ejector inlet can be effectively mixed, thereby improving the utilization efficiency of hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the integrated adjustable ejector of the present invention when it stops working; Figure 2 is a schematic diagram of the integrated adjustable ejector of the present invention under normal working conditions; Figure 3 It is a schematic diagram of the integrated adjustable ejector of the present invention under the condition of abnormal hydrogen temperature; Figure 4 It is a schematic diagram of the integrated adjustable ejector of the present invention under high-pressure hydrogen working conditions; Figure 5 It is a schematic diagram of the principle of the temperature control module of the present invention; Figure 6 It is a schematic diagram of the principle of the vehicle-mounted hydrogen supply circulation system of the present invention; In the figure: 1-hydrogenation port; 2-hydrogenation port pressure gauge; 3-hydrogenation port check valve; 4-hydrogenation port filter; 5-hydrogen storage bottle; 6-bottle port combination valve; 7-inlet check valve; 8-inlet filter; 9-flow valve; 10-first-stage pressure reducing valve; 11-medium pressure sensor; 12-second-stage pressure reducing valve; 13-export check valve; 14-export filter; 15-integrated adjustable ejector; 1501-high-pressure hydrogen injection inlet; 1502-high-pressure hydrogen storage cavity; 1503-low-pressure hydrogen reflux inlet; 1504-low-pressure hydrogen storage cavity; 1505-ejector outer shell; 1506-first control device; 1507-first execution controller; 1508-adjustable retractable tube; 1509-adjustable retractable tube valve; 1510-mixing cavity; 1511-diffusion cavity; 1512-flow sensor; 1513-pressure sensor; 1514-temperature sensor; 1515-second control device; 1516-first control device; 1517-second control device; 1518-second control device; 1519-second control device; 1520-second control device; 1521-second control device; 1522-second control device; 1523-second control device; 1524-second control device; 1525-second control device; 1526-second control device; 1527-second control device; 1528-second control device; 1529-second control device; 1530-second control device; 1531-second control device; 1532-second control device; 1533-second control device; 1534-second control device; 1535-second control device; 1536-second control device; 1537-second control device; 1538-second control device; 1539-second control device; 1540-second control device; 1541-second control device; 1542-second control device; 1543-second control device; 1544-second control device; 1545-second control device; 1546-second control device; 1547-second control device; 1548-second control device; 1549-second control device; 1550-second control device; 1551 516-second execution controller; 1517-valve for hydrogen temperature abnormal flow channel; 1518-valve for normal hydrogen flow channel; 1519-valve for high-pressure hydrogen flow channel; 1520-flow channel for hydrogen temperature abnormality; 1521-normal hydrogen flow channel; 1522-high-pressure hydrogen flow channel; 1523-high-pressure hydrogen outlet; 1524-temperature control module; 1524-1-thermistor; 1524-2-temperature controller; 1524-3-heating element; 1524-4-thermistor; 1524-5-thermistor; 1524-6-thermistor; 1524-7-thermistor; 1524-8-thermistor; 1524-9-thermistor; 1524-10-thermistor; 1524-11-thermistor; 1524-12-thermistor; 1524-13-thermistor; 1524-14-thermistor; 1524-15-thermistor; 1524-16-thermistor; 1524-17-thermistor; 1524-18-thermistor; 1524-19-thermistor; 1524-20-thermistor; 1524-21-thermistor; 1524-22-thermistor; 1524-23-thermistor; 1524-24-thermistor; 1524-25-thermistor; 1524-26-thermistor; 1524-27-thermistor; 1524-28-thermistor; 1524-29-thermistor; 1524-30-thermistor; 1524-31-thermistor; 152 24-4-cooling element; 1525-third control device; 1526-third execution controller; 1527-hydrogen mixture flow outlet valve; 1528-hydrogen mixture flow outlet; 1529-hydrogen mixture flow channel; 1530-hydrogen monitoring flow channel; 16-fuel cell reactor hydrogen flow sensor; 17-fuel cell reactor; 18-hydrogen compressor; 19-steam-water separator; 20-circulation reflux pipeline one-way valve; 21-pressure reducing valve. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] In the description of the present invention, it is necessary to understand that if the terms "upper", "lower", "front", "rear", "left", "right", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0018] like Figure 1 An integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system is shown, comprising an ejector outer shell, a hydrogen inlet, a hydrogen outlet, a storage chamber, a valve, a control device, an execution controller, a monitoring module, and a temperature control module; the storage chamber is located inside the ejector outer shell and is used to store high-pressure hydrogen and low-pressure hydrogen; the ejector outer shell is used to provide an installation position for the control device and the execution controller, and the control device and the execution controller are both installed inside the ejector outer shell; the monitoring module and the temperature control module are integrated in the adjustable ejector to monitor the flow, pressure, and temperature of the hydrogen in the integrated adjustable ejector in real time, and the temperature control module can adjust the hydrogen temperature according to the temperature conditions to ensure stable operation within the set range, thereby achieving temperature control; the fuel cell reactor hydrogen flow sensor converts the required flow of the fuel cell reactor into an electrical signal and transmits it to the controller, and the control device controls the execution controller to accurately and intelligently adjust the size of the valve to achieve dynamic optimization, meet the normal operation of the fuel cell reactor under various power conditions and the various operating conditions of hydrogen fuel cell vehicles, thereby adapting to various driving conditions.

[0019] Specifically, when the hydrogen fuel cell vehicle stops, the integrated adjustable ejector is in a stopped working condition. The integrated adjustable ejector 15 includes an ejector outer shell 1505, a high-pressure hydrogen ejection inlet 1501, a low-pressure hydrogen reflux inlet 1503, a high-pressure hydrogen storage chamber 1502, a low-pressure hydrogen storage chamber 1504, an adjustable retractable tube 1508, a mixing chamber 1510, a pressure diffusion chamber 1511, a hydrogen monitoring flow channel 1530, a hydrogen temperature abnormal flow channel 1520, a normal hydrogen flow channel 1521, a high-pressure hydrogen flow channel 1522, a hydrogen mixing flow channel 1529, and a hydrogen mixed flow outlet 1530. 528, high-pressure hydrogen outlet 1523, valve, control device, execution controller, monitoring module, temperature control module 1524; the hydrogen coming out of the combination valve enters the high-pressure hydrogen storage chamber 1502 from the high-pressure hydrogen injection inlet 1501, the hydrogen at the high-pressure hydrogen outlet 1523 of the integrated adjustable ejector 15 is reduced in pressure and stabilized by the pressure reducing valve 21 and mixed with the unreacted hydrogen of the fuel cell reactor 17 after filtering water and other impurities through the steam-water separator 19, and then enters the hydrogen compressor 18 through the low-pressure hydrogen reflux inlet 1503 of the integrated adjustable ejector 15 to enter the low-pressure hydrogen storage chamber 1504; the valve The door includes an adjustable retractable tube valve 1509, a hydrogen temperature abnormal flow channel valve 1517, a normal hydrogen flow channel valve 1518, a high-pressure hydrogen flow channel valve 1519, and a hydrogen mixed flow outlet valve 1527; the storage chamber is used to temporarily store high-pressure hydrogen and low-pressure hydrogen; the high-pressure hydrogen storage chamber 1502 is located to the right of the high-pressure hydrogen injection inlet 1501; the low-pressure hydrogen storage chamber 1504 is located below the low-pressure hydrogen reflux inlet 1503; the high-pressure hydrogen outlet 1523 is located below the high-pressure hydrogen flow channel 1522; the adjustable retractable tube 1508, the mixing chamber 1510, the pressure expansion chamber 1511, the hydrogen The hydrogen monitoring flow channel 1530 is interconnected through an adjustable shrink tube valve 1509 for the circulation of hydrogen; the hydrogen temperature abnormal flow channel 1520 is connected to the hydrogen monitoring flow channel 1530 through the hydrogen temperature abnormal flow channel valve 1517; the normal hydrogen flow channel 1521 is connected to the hydrogen monitoring flow channel 1530 through the normal hydrogen flow channel valve 1518; the hydrogen monitoring flow channel 1530, the high-pressure hydrogen flow channel 1522, and the high-pressure hydrogen outlet 1523 are connected through the high-pressure hydrogen flow channel valve 1519; the hydrogen mixing flow channel 1529 is interconnected with the hydrogen temperature abnormal flow channel 1520 and the normal hydrogen flow channel 1521, respectively.

[0020] The monitoring module and the temperature control module 1524 are integrated in the adjustable ejector; the monitoring module includes a flow sensor 1512, a pressure sensor 1513, and a temperature sensor 1514, all of which are located inside the hydrogen monitoring flow channel 1530, and are respectively used to monitor the flow, pressure, and temperature of the hydrogen in the integrated adjustable ejector 15 in real time; the temperature control module 1524 is located inside the hydrogen temperature abnormality flow channel 1520, and is used to adjust the hydrogen temperature to ensure stable operation within the set range and achieve temperature control; the temperature control module 1524 includes a thermistor 1524-1, a temperature controller 1524-2, a heating element 1524-3, a cooling element 1524-4, and a cooling element 1524-5. The thermistor 1524-1 is used to monitor the hydrogen temperature in the hydrogen temperature abnormality flow channel 1520 in real time, and convert it into an electrical signal and transmit it to the temperature controller 1524-2. The temperature controller 1524-2 receives the electrical signal transmitted by the thermistor 1524-1, compares the actual temperature of the hydrogen with the target temperature, and takes corresponding measures such as activating the heating element 1524-3 or the cooling element 1524-4 to adjust the hydrogen temperature. The heating element 1524-3 is used to increase the heat when the hydrogen temperature is lower than the target temperature, and the cooling element 1524-4 is used to reduce the heat when the hydrogen temperature is higher than the target temperature.

[0021] The execution controller includes a first execution controller 1507, a second execution controller 1516, and a third execution controller 1526; the adjustable shrink tube 1508 is circumferentially wrapped around the first execution controller 1507; the second execution controller 1516 is located above the joint between the hydrogen monitoring flow channel 1530 and the hydrogen temperature abnormal flow channel 1520, the normal hydrogen flow channel 1521, and the high-pressure hydrogen flow channel 1522; the third execution controller 1526 is located above the hydrogen mixing flow channel 1529; the first execution controller 1507 is used to control the opening and closing of the adjustable shrink tube valve 1509; the second execution controller 1516 is used to control the opening and closing of the hydrogen temperature abnormal flow channel valve 1517, the normal hydrogen flow channel valve 1518, and the high-pressure hydrogen flow channel valve 1519; the third execution controller 1526 is used to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve 1527.

[0022] The control device includes a first control device 1506, a second control device 1515, and a third control device 1525; the first control device 1506 is located above the first execution controller 1507; the second control device 1515 is located above the second execution controller 1516; the third control device 1525 is located above the third execution controller 1526; the first control device 1506 is used to control the first execution controller 1507; the second control device 1515 is used to control the second execution controller 1516; the third control device 1525 is used to control the third execution controller 1526.

[0023] like Figure 2 As shown, when the hydrogen fuel cell vehicle is driving, the hydrogen temperature and pressure are normal. At this time, the integrated adjustable ejector 15 is under normal working conditions, the first control device 1506, the second control device 1515, and the third control device 1525 are powered on at the same time, the first control device 1506 controls the first execution controller 1507 to open the adjustable retractable tube valve 1509, and the second control device 1515 controls the second execution controller 1516 to open the normal hydrogen flow channel valve 1518, and the adjustable retractable tube 1508, the mixing chamber 1510, the pressure diffusion chamber 1511, the hydrogen monitoring flow channel 1530, the normal hydrogen flow channel 1521, and the hydrogen mixing flow channel 1529 are interconnected in sequence; at this time, the hydrogen coming out of the combination valve enters the high-pressure hydrogen storage chamber 1502 from the high-pressure hydrogen ejection inlet 1501 through the outlet one-way valve 13, and the unreacted hydrogen of the fuel cell reactor 17 enters the hydrogen compressor 18 through the low-pressure hydrogen reflux after filtering the water and other impurities through the steam-water separator 19. The inlet 1503 enters the low-pressure hydrogen storage chamber 1504, enters the mixing chamber 1510 through the adjustable contraction tube 1508, and then enters the hydrogen mixing channel 1529 through the pressure diffusion chamber 1511, the hydrogen monitoring flow channel 1530, and the hydrogen normal flow channel 1521 in sequence. The fuel cell reactor hydrogen flow sensor 16 converts the flow required by the fuel cell reactor 17 into an electrical signal according to the operating status and requirements of the hydrogen fuel cell vehicle and transmits it to the third control device 1525. The third control device 1525 controls the third execution controller 1526 to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve 1527, open the hydrogen mixed flow outlet 1528, and finally flows out of the integrated adjustable ejector 15 through the hydrogen mixed flow outlet 1528, and enters the fuel cell reactor 17 through the outlet filter 14, thereby realizing dynamic optimization, meeting the normal operation of the fuel cell reactor 17 under various power conditions and the various working conditions of the hydrogen fuel cell vehicle and adapting to various driving conditions.

[0024] like Figure 3 , Figure 5As shown, when the hydrogen temperature is abnormal during driving of the hydrogen fuel cell vehicle, the integrated adjustable ejector 15 is under the condition of abnormal hydrogen temperature, the first control device 1506, the second control device 1515, and the third control device 1525 are powered on at the same time, the first control device 1506 controls the first execution controller 1507 to open the adjustable retractable tube valve 1509, and the adjustable retractable tube 1508, the mixing chamber 1510, the pressure diffusion chamber 1511, and the hydrogen monitoring flow channel 1530 are interconnected in sequence; at this time, the hydrogen coming out of the combination valve enters the high-pressure hydrogen storage chamber 1502 from the high-pressure hydrogen ejection inlet 1501 through the outlet one-way valve 13, and the unreacted hydrogen of the fuel cell reactor 17 passes through the steam-water separator 19 After filtering out moisture and other impurities, the hydrogen enters the hydrogen compressor 18 and enters the low-pressure hydrogen storage chamber 1504 through the low-pressure hydrogen reflux inlet 1503, enters the mixing chamber 1510 through the adjustable shrink tube 1508, and enters the hydrogen monitoring flow channel 1530 through the pressure diffusion chamber 1511; the temperature sensor 1514 detects the abnormal hydrogen temperature and transmits it to the second control device 1515 in the form of an electrical signal, and the second control device 1515 controls the second execution controller 1516 to open the hydrogen temperature abnormal flow channel valve 1517 and the normal hydrogen flow channel valve 1518; the hydrogen with abnormal temperature enters the temperature control module 1524 through the hydrogen temperature abnormal flow channel 1520, and the thermistor 1524-1 monitors the hydrogen temperature abnormal flow channel 1520 in real time. 520, and convert it into an electrical signal and transmit it to the temperature controller 1524-2. The temperature controller 1524-2 receives the electrical signal transmitted by the thermistor 1524-1, and compares the actual temperature of the hydrogen with the target temperature. If the hydrogen temperature is higher than the target temperature, the cooling element 1524-4 needs to be activated to reduce the heat to reach the target temperature. If the hydrogen temperature is lower than the target temperature, the heating element 1524-3 needs to be activated to increase the heat to reach the target temperature, so as to ensure stable operation within the set range, thereby achieving temperature control, and the hydrogen reaching the target temperature enters the hydrogen mixing flow channel 1529; at the same time, normal hydrogen enters the hydrogen mixing flow channel 1529 from the hydrogen monitoring flow channel 1530 via the normal hydrogen flow channel 1521; The fuel cell reactor hydrogen flow sensor 16 converts the flow required by the fuel cell reactor 17 into an electrical signal according to the operating status and requirements of the hydrogen fuel cell vehicle and transmits it to the third control device 1525. The third control device 1525 controls the third execution controller 1526 to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve 1527, open the hydrogen mixed flow outlet 1528, and finally flows out of the integrated adjustable ejector 15 through the hydrogen mixed flow outlet 1528, and enters the fuel cell reactor 17 through the outlet filter 14, thereby realizing dynamic optimization, meeting the normal operation of the fuel cell reactor 17 under various power conditions and the various operating requirements of the hydrogen fuel cell vehicle and adapting to various driving conditions.

[0025] like Figure 4 As shown, when the hydrogen fuel cell vehicle is driving and the hydrogen pressure is too high, the integrated adjustable ejector is under high-pressure hydrogen working conditions, and the first control device 1506, the second control device 1515, and the third control device 1525 are powered on at the same time, and the first control device 1506 controls the first execution controller 1507 to open the adjustable retractable tube valve 1509, and the adjustable retractable tube 1508, the mixing chamber 1510, the pressure diffusion chamber 1511, and the hydrogen monitoring flow channel 1530 are interconnected in sequence; at this time, the hydrogen coming out of the combination valve enters the high-pressure hydrogen storage chamber 1502 from the high-pressure hydrogen ejection inlet 1501 through the outlet check valve 13, and the hydrogen at the high-pressure hydrogen outlet 1523 passes through the pressure reducing valve 21 The unreacted hydrogen from the fuel cell reactor 17 is filtered out of water and other impurities by the steam-water separator 19, and then enters the hydrogen compressor 18 through the low-pressure hydrogen reflux inlet 1503, enters the low-pressure hydrogen storage chamber 1504, enters the mixing chamber 1510 through the adjustable contraction tube 1508, and enters the hydrogen monitoring flow channel 1530 through the pressure diffusion chamber 1511; the pressure sensor 1513 detects that the hydrogen pressure is too high, and transmits it to the second control device 1515 in the form of an electrical signal, and the second control device 1515 controls the second execution controller 1516 to open the high-pressure hydrogen flow channel valve 1519 and the normal hydrogen flow channel valve 1518; at this time, the hydrogen monitoring flow channel 1530 and the high-pressure hydrogen flow channel valve 1519 are opened, and the normal hydrogen flow channel valve 1518 is opened. The flow channel 1522 and the high-pressure hydrogen outlet 1523 are interconnected in sequence, and the high-pressure hydrogen flows into the circulation reflux pipeline through the high-pressure hydrogen outlet 1523, and is reduced in pressure and stabilized by the pressure reducing valve 21. The unreacted hydrogen in the fuel cell reactor 17 passes through the steam-water separator 19 to filter out water and other impurities, and then enters the hydrogen compressor 18 together with the low-pressure hydrogen reflux inlet 1503 to enter the low-pressure hydrogen storage chamber 1504, thereby realizing the pressure reduction, stabilization and recycling of part of the high-pressure hydrogen in the integrated adjustable ejector 15, avoiding hydrogen waste and improving the utilization rate of hydrogen; at the same time, the hydrogen monitoring flow channel 1530, the normal hydrogen flow channel 1521, and the hydrogen mixing flow channel 1529 are interconnected in sequence, and the fuel cell reactor hydrogen The flow sensor 16 converts the flow required by the fuel cell reactor 17 into an electrical signal according to the operating status and requirements of the hydrogen fuel cell vehicle and transmits it to the third control device 1525. The third control device 1525 controls the third execution controller 1526 to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve 1527, open the hydrogen mixed flow outlet 1528, and finally flows out of the integrated adjustable ejector 15 through the hydrogen mixed flow outlet 1528, and enters the fuel cell reactor 17 through the outlet filter 14, thereby realizing dynamic optimization, meeting the normal operation of the fuel cell reactor 17 under various power conditions and the various operating requirements of the hydrogen fuel cell vehicle and adapting to various driving conditions.

[0026] like Figure 6As shown, the on-board hydrogen supply circulation system includes a hydrogenation pipeline, a bottle mouth combination valve 6, a hydrogen storage bottle 5, a working pipeline, a combination valve, a circulation reflux pipeline, and a fuel cell reactor 17; the hydrogen storage bottle 5 is connected to one end of the working pipeline and the hydrogenation pipeline respectively through the bottle mouth combination valve 6, and the other end of the working pipeline is connected to the fuel cell reactor 17; an inlet check valve 7 and an inlet filter 8 are provided on the working pipeline between the combination valve and the bottle mouth combination valve 6; an outlet check valve 13, an integrated adjustable ejector 15, a circulation reflux pipeline, an outlet filter 14, and a fuel cell reactor hydrogen flow sensor 16 are installed in sequence on the working pipeline between the combination valve and the fuel cell reactor 17.

[0027] The combination valve includes an overflow valve 9, a first-level pressure reducing valve 10, a medium-pressure sensor 11, and a second-level pressure reducing valve 12, which are used to reduce pressure and stabilize the hydrogen; the hydrogenation pipeline includes a hydrogenation port 1, a hydrogenation port pressure gauge 2, a hydrogenation port check valve 3, and a hydrogenation port filter 4, and one end of the hydrogenation pipeline is connected to the hydrogen storage bottle 5 through a bottle mouth combination valve 6; when filling hydrogen, the other end of the hydrogenation pipeline is connected to the hydrogenation gun, and enters the hydrogen storage bottle 5 through the hydrogenation port 1, the hydrogenation port pressure gauge 2, the hydrogenation port check valve 3, the hydrogenation port filter 4, and the bottle mouth combination valve 6 in sequence. At this time, the hydrogen fuel cell vehicle is in a power-off state and the pressure sensor cannot be used. Therefore, the hydrogenation port pressure gauge 2 is used to detect the pressure of the hydrogen to avoid overcharging; the hydrogenation port check valve 3 is used to prevent leakage after stopping the hydrogenation; the hydrogenation port filter 4 is used to filter various impurities mixed in the hydrogen; the hydrogenation pipeline is used to fill the hydrogen storage bottle 5 with hydrogen.

[0028] The circulating reflux pipeline includes an integrated adjustable ejector 15, a pressure reducing valve 21, a circulating reflux pipeline check valve 20, a steam-water separator 19, and a hydrogen compressor 18. The circulating reflux pipeline is respectively connected to the high-pressure hydrogen outlet 1523, the outlet of the fuel cell reactor 17, and the low-pressure hydrogen reflux inlet 1503; the hydrogen at the high-pressure hydrogen outlet 1523 is reduced in pressure and stabilized by the pressure reducing valve 21, and the unreacted hydrogen from the fuel cell reactor 17 is filtered through the steam-water separator 19 for water and other impurities, and then enters the hydrogen compressor 18 through the low-pressure hydrogen reflux inlet 1503. The low-pressure hydrogen storage chamber 1504 is mixed with the high-pressure hydrogen storage chamber 1502 and then returns to the working pipeline through the integrated adjustable ejector 15, and then re-enters the fuel cell reactor 17 through the outlet filter 14 for reaction, so that the hydrogen is recycled and the waste of hydrogen is avoided to improve the utilization rate of hydrogen. When the hydrogen fuel cell vehicle is driving and the hydrogen has abnormal temperature or too high pressure, the temperature control module 1524 in the integrated adjustable ejector 15 can adjust the hydrogen temperature according to the temperature to ensure stable operation within the set range and achieve temperature control. The gas can flow into the circulation reflux pipeline through the high-pressure hydrogen outlet 1523, and return to the working pipeline through the integrated adjustable ejector 15, thereby realizing the pressure reduction, stabilization and recycling of part of the high-pressure hydrogen in the integrated adjustable ejector; the fuel cell reactor hydrogen flow sensor 16 converts the flow required by the fuel cell reactor 17 into an electrical signal according to the operating status and needs of the hydrogen fuel cell vehicle and transmits it to the third control device 1525 of the integrated adjustable ejector 15, and the third control device 1525 controls the third execution controller 1526 to accurately and intelligently adjust the hydrogen mixed flow outlet valve The size of the door 1527 is dynamically optimized to meet the normal operation of the fuel cell reactor under various power conditions and the various operating requirements of the hydrogen fuel cell vehicle, thereby adapting to various driving conditions; the pressure reducing valve 21 is used to reduce the pressure and stabilize the hydrogen in the circulating reflux pipeline; the circulating reflux pipeline check valve 20 is to prevent the hydrogen from flowing back and damaging the circulating reflux pipeline; the steam-water separator 19 is used to filter moisture and other impurities; the hydrogen compressor 18 is used to increase the reflux hydrogen flow rate of the integrated adjustable ejector so that it can effectively mix the hydrogen at the high-pressure hydrogen injection inlet.

[0029] The working pipeline is from the bottle mouth combination valve 6 to the fuel cell reactor 17, which is responsible for providing hydrogen with suitable flow and pressure for the fuel cell reactor 17. After passing through the bottle mouth combination valve 6, the hydrogen in the hydrogen storage bottle 5 enters the fuel cell reactor 17 through the inlet check valve 7, the inlet filter 8, the combination valve, the outlet check valve 13, the integrated adjustable ejector 15, the outlet filter 14, and the fuel cell reactor hydrogen flow sensor 16 in sequence; the inlet check valve 7 and the outlet check valve 13 are used to prevent the hydrogen from flowing back and damaging the working pipeline; the inlet filter 8 and the outlet filter 14 are used to purify the hydrogen and filter impurities to protect the fuel cell reactor 17; the combination valve plays the role of reducing pressure and stabilizing pressure, and provides suitable hydrogen for the fuel cell reactor 17; the medium pressure sensor 11 in the combination valve will convert the pressure signal into a gas volume signal and display it on the dashboard of the cab; the fuel cell reactor hydrogen flow sensor 16 is used to monitor the flow required by the fuel cell reactor 17 in real time, and convert it into an electrical signal to the third control device 1525 of the integrated adjustable ejector 15.

[0030] The working principle of the present invention is described below: according to Figure 1-Figure 6As shown, when the hydrogen fuel cell vehicle stops, high-pressure hydrogen enters the hydrogenation pipeline from the hydrogenation gun, and enters the hydrogenation bottle 5 through the hydrogenation port 1, the hydrogenation port pressure gauge 2, the hydrogenation port one-way valve 3, the hydrogenation port filter 4, and the bottle mouth combination valve 6 in sequence, and the high-pressure hydrogen is stored in the hydrogen storage bottle 5; when the hydrogen fuel cell vehicle is running, the hydrogen enters the working pipeline from the hydrogen storage bottle 5 through the bottle mouth combination valve 6, and passes through the inlet one-way valve 7, the inlet filter 8, and the combination valve in the working pipeline in sequence, and the hydrogen is decompressed and stabilized through the combination valve so that it can meet the hydrogen pressure entering the fuel cell reactor 17; and then enters the integrated adjustable The high-pressure hydrogen outlet 1523 of the hydrogen is decompressed and stabilized by the pressure reducing valve 21, and the unreacted hydrogen in the fuel cell reactor 17 is filtered by the steam-water separator 19 for filtering water and other impurities, and then enters the hydrogen compressor 18 together with the low-pressure hydrogen storage chamber 1504 through the low-pressure hydrogen reflux inlet 1503, and then re-enters the fuel cell reactor 17 through the integrated adjustable ejector 15, the outlet filter 14, and the fuel cell reactor hydrogen flow sensor 16; the hydrogen fuel cell vehicle During driving, when the temperature and pressure of hydrogen are normal, the integrated adjustable ejector 15 is under normal working conditions, the first control device 1506, the second control device 1515, and the third control device 1525 are powered on at the same time, the first control device 1506 controls the first execution controller 1507 to open the adjustable retractable tube valve 1509, and the second control device 1515 controls the second execution controller 1516 to open the normal hydrogen flow channel valve 1518, and the hydrogen enters the mixing chamber 1510 through the adjustable retractable tube 1508, and then enters the hydrogen flow channel 1521 through the pressure diffusion chamber 1511, the hydrogen monitoring flow channel 1530, and the hydrogen normal flow channel 1521 in sequence. gas mixing flow channel 1529; when the hydrogen temperature is abnormal, the integrated adjustable ejector 15 is under the condition of abnormal hydrogen temperature, the first control device 1506, the second control device 1515, and the third control device 1525 are powered on at the same time, the first control device 1506 controls the first execution controller 1507 to open the adjustable shrink tube valve 1509, the temperature sensor 1514 detects the abnormal hydrogen temperature and transmits it to the second control device 1515 in the form of an electrical signal, and the second control device 1515 controls the second execution controller 1516 to open the hydrogen temperature abnormal flow channel valve 1517 and the normal hydrogen flow channel valve 1518;Hydrogen with abnormal temperature enters the temperature control module 1524 through the hydrogen temperature abnormal flow channel 1520. The thermistor 1524-1 monitors the hydrogen temperature in the hydrogen temperature abnormal flow channel 1520 in real time, and converts it into an electrical signal and transmits it to the temperature controller 1524-2. The temperature controller 1524-2 receives the electrical signal transmitted by the thermistor 1524-1, compares the actual temperature of the hydrogen with the target temperature, and if the hydrogen temperature is higher than the target temperature, the cooling element 1524-4 needs to be activated to reduce the heat to reach the target temperature. If the hydrogen temperature is lower than the target temperature, the heating element 1524-3 needs to be activated to increase the heat to reach the target temperature, so as to ensure stable operation within the set range and achieve temperature control. The hydrogen reaching the target temperature enters the hydrogen mixing flow channel 1529; at the same time, normal hydrogen enters the hydrogen mixing flow channel 1529 from the hydrogen monitoring flow channel 1530 via the normal hydrogen flow channel 1521; when the hydrogen pressure is too high, at this time, the integrated adjustable ejector is under high-pressure hydrogen conditions, and the first control device 1506, the second control device 1515, and the third control device 1525 are powered on at the same time, and the first control device 1506 controls the first execution controller 1507 to open the adjustable retractable tube valve 1509, and the pressure sensor 1513 detects that the hydrogen pressure is too high, and transmits it to the second control device 1515 in the form of an electrical signal, and the second control device 1515 controls the second execution controller 1516 to open the high The high-pressure hydrogen flow channel valve 1519 and the normal hydrogen flow channel valve 1518, the high-pressure hydrogen flows into the circulation reflux pipeline through the high-pressure hydrogen outlet 1523, is reduced in pressure and stabilized by the pressure reducing valve 21, and the unreacted hydrogen in the fuel cell reactor 17 passes through the steam-water separator 19 to filter out water and other impurities, and then enters the hydrogen compressor 18 together, and enters the low-pressure hydrogen storage chamber 1504 through the low-pressure hydrogen reflux inlet 1503, thereby realizing the pressure reduction, stabilization and recycling of part of the high-pressure hydrogen in the integrated adjustable ejector 15, avoiding hydrogen waste and improving the utilization rate of hydrogen; at the same time, normal hydrogen enters the hydrogen mixing channel 1529 from the hydrogen monitoring channel 1530 through the normal hydrogen flow channel 1521; the fuel cell reactor hydrogen The flow sensor 16 converts the flow required by the fuel cell reactor 17 into an electrical signal according to the operating state and requirements of the hydrogen fuel cell vehicle and transmits it to the third control device 1525. The third control device 1525 controls the third execution controller 1526 to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve 1527, open the hydrogen mixed flow outlet 1528, and finally flows out of the integrated adjustable ejector 15 through the hydrogen mixed flow outlet 1528, and enters the fuel cell reactor 17 through the outlet filter 14, thereby achieving dynamic optimization, meeting the normal operation of the fuel cell reactor 17 under various power conditions and the various working conditions of the hydrogen fuel cell vehicle and adapting to various driving conditions. ;

[0031] In summary, the present invention has comprehensively designed the ejector in view of various working requirements and driving conditions of hydrogen fuel cell vehicles, normal operation of the fuel cell reactor under various power conditions, recycling of hydrogen, monitoring of the temperature, pressure, and flow of hydrogen entering the fuel cell reactor, and controlling the temperature change of hydrogen.

[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made based on the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system, characterized in that: The invention comprises a hydrogenation pipeline, a working pipeline and a circulation return pipeline, wherein the circulation return pipeline comprises an integrated adjustable ejector (15), a hydrogen compressor (18), a steam-water separator (19), a circulation return pipeline check valve (20) and a pressure reducing valve (21); the integrated adjustable ejector (15) comprises an ejector outer shell (1505), a hydrogen inlet, a hydrogen outlet, a storage chamber, a valve, a control device, an execution controller, a monitoring module and a temperature control module (1524); the storage chamber is located inside the ejector outer shell (1505) and is used for temporarily storing high-pressure hydrogen and low-pressure hydrogen; the ejector outer shell (1505) is used to provide an installation position for the control device and the execution controller, and the control device and the execution controller are connected to each other. The execution controllers are all installed inside the ejector outer shell (1505); the monitoring module includes a flow sensor (1512), a pressure sensor (1513), and a temperature sensor (1514); the temperature control module (1524) includes a thermistor (1524-1), a temperature controller (1524-2), a heating element (1524-3), and a cooling element (1524-4); the control device includes a first control device (1506), a second control device (1515), and a third control device (1525); the execution controller includes a first execution controller (1507), a second execution controller (1516), and a third execution controller (1526); the first control The device (1506) is located above the first execution controller (1507); the second control device (1515) is located above the second execution controller (1516); the third control device (1525) is located above the third execution controller (1526); the hydrogen inlet includes a high-pressure hydrogen injection inlet (1501) and a low-pressure hydrogen reflux inlet (1503); the hydrogen outlet includes a high-pressure hydrogen outlet (1523) and a hydrogen mixed flow outlet (1528); the valve includes an adjustable shrink tube valve (1509), a hydrogen temperature abnormal flow channel valve (1517), a normal hydrogen flow channel valve (1518), a high-pressure hydrogen flow channel valve (1519), and a hydrogen mixed flow outlet valve The storage chamber comprises a high-pressure hydrogen storage chamber (1502), a low-pressure hydrogen storage chamber (1504), an adjustable shrink tube (1508), a mixing chamber (1510), a pressure diffusion chamber (1511), a hydrogen temperature abnormality flow channel (1520), a normal hydrogen flow channel (1521), a high-pressure hydrogen flow channel (1522), a hydrogen mixing flow channel (1529), and a hydrogen monitoring flow channel (1530); the high-pressure hydrogen storage chamber (1502) is located to the right of the high-pressure hydrogen injection inlet (1501); the low-pressure hydrogen storage chamber (1504) is located below the low-pressure hydrogen reflux inlet (1503); and the high-pressure hydrogen outlet (1523) is located below the high-pressure hydrogen flow channel (1522);The adjustable shrink tube (1508), the mixing chamber (1510), the pressure diffusion chamber (1511), and the hydrogen monitoring flow channel (1530) are connected via the adjustable shrink tube valve (1509); the hydrogen temperature abnormal flow channel (1520) and the hydrogen monitoring flow channel (1530) are connected via the hydrogen temperature abnormal flow channel valve (1517); the normal hydrogen flow channel (1521) and the hydrogen monitoring flow channel (1530) are connected via the normal hydrogen flow channel valve (1518); the hydrogen monitoring flow channel (1530), the high-pressure hydrogen flow channel (1522), and the high-pressure hydrogen outlet (1523) are connected via the high-pressure hydrogen flow channel valve (1519); the hydrogen mixing flow channel (1529) is respectively connected to the hydrogen temperature abnormal flow channel (1520) and the normal hydrogen flow channel (1521); The adjustable retractable tube (1508) is circumferentially wrapped around the first execution controller (1507); the second execution controller (1516) is located above the joint between the hydrogen monitoring flow channel (1530) and the hydrogen temperature abnormal flow channel (1520), the normal hydrogen flow channel (1521), and the high-pressure hydrogen flow channel (1522); the third execution controller (1526) is located above the hydrogen mixing flow channel (1529); the flow sensor (1512), the pressure sensor (1513), and the temperature sensor (1514) are all located inside the hydrogen monitoring flow channel (1530); the temperature control module (1524) is located inside the hydrogen temperature abnormal flow channel (1520); the integrated adjustable ejector includes a stop working condition, a normal working condition, an abnormal hydrogen temperature condition, and a high-pressure hydrogen condition.

2. The integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system according to claim 1, characterized in that: The hydrogenation pipeline comprises a hydrogenation port (1), a hydrogenation port pressure gauge (2), a hydrogenation port one-way valve (3), and a hydrogenation port filter (4).

3. The integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system according to claim 1, characterized in that: The combination valve is installed on a working pipeline; an inlet check valve (7) and an inlet filter (8) are installed in sequence on the working pipeline between the combination valve and the bottle mouth combination valve (6); an outlet check valve (13), an integrated adjustable ejector (15), a circulation reflux pipeline, an outlet filter (14), and a fuel cell reactor hydrogen flow sensor (16) are installed in sequence on the working pipeline between the combination valve and the fuel cell reactor (17).

4. The integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system according to claim 3 is characterized in that: The combined valve comprises an over-flow valve (9), a primary pressure reducing valve (10), a medium pressure sensor (11), and a secondary pressure reducing valve (12).

5. The integrated adjustable ejector for a vehicle-mounted hydrogen supply circulation system according to claim 1, characterized in that: The integrated adjustable ejector includes a stop working condition, a normal working condition, an abnormal hydrogen temperature condition, and a high-pressure hydrogen condition; In the stop working condition, the control device is not powered on, and the hydrogen inlet and outlet are closed, so that the hydrogen inlet and outlet are not connected to the storage chamber; Under the normal working condition, the first control device (1506), the second control device (1515), and the third control device (1525) are powered on at the same time; the first control device (1506) controls the first execution controller (1507) to open the adjustable shrink tube valve (1509), so that the adjustable shrink tube (1508), the mixing chamber (1510), the pressure diffusion chamber (1511), and the hydrogen monitoring flow channel (1530) are connected to each other in sequence; the second control device (1515) controls the second execution controller (1516) to open the normal hydrogen flow channel valve (1518), so that the hydrogen The hydrogen monitoring flow channel (1530), the normal hydrogen flow channel (1521), and the hydrogen mixing flow channel (1529) are sequentially connected to each other; the fuel cell reactor hydrogen flow sensor (16) converts the flow required by the fuel cell reactor (17) into an electrical signal according to the operating state and demand of the hydrogen fuel cell vehicle and transmits the data to the third control device (1525); the third control device (1525) controls the third execution controller (1526) to accurately and intelligently adjust the size of the hydrogen mixing flow outlet valve (1527) to open the hydrogen mixing flow outlet (1528); Under the abnormal hydrogen temperature working condition, the first control device (1506), the second control device (1515), and the third control device (1525) are powered on simultaneously; the first control device (1506) controls the first execution controller (1507) to open the adjustable shrink tube valve (1509), so that the adjustable shrink tube (1508), the mixing chamber (1510), the pressure diffusion chamber (1511), and the hydrogen monitoring flow channel (1530) are sequentially connected to each other; the second control device (1515) controls the second execution controller (1516) to open the normal hydrogen flow channel valve (1518) and the hydrogen temperature abnormal flow channel valve (1517); the hydrogen monitoring flow channel (1530), the normal hydrogen flow channel (1521), and the hydrogen mixing flow channel (1529) are sequentially connected to each other; The hydrogen monitoring flow channel (1530), the hydrogen temperature abnormality flow channel (1520) and the hydrogen mixing flow channel (1529) are connected via a temperature control module (1524). The temperature control module (1524) can adjust the hydrogen temperature according to the actual temperature conditions to ensure stable operation within a set range, thereby achieving temperature control of the hydrogen. The fuel cell reactor hydrogen flow sensor (16) converts the flow required by the fuel cell reactor (17) into an electrical signal according to the operating state and requirements of the hydrogen fuel cell vehicle and transmits the data to the third control device (1525). The third control device (1525) controls the third execution controller (1526) to accurately and intelligently adjust the size of the hydrogen mixing flow outlet valve (1527) to open the hydrogen mixing flow outlet (1528). Under the high-pressure hydrogen working condition, the first control device (1506), the second control device (1515), and the third control device (1525) are energized at the same time; the first control device (1506) controls the first execution controller (1507) to open the adjustable shrink tube valve (1509), so that the adjustable shrink tube (1508), the mixing chamber (1510), the pressure diffusion chamber (1511), and the hydrogen monitoring flow channel (1530) are sequentially connected to each other; the second control device (1515) controls the second execution controller (1516) to open the normal hydrogen flow channel valve (1518) and the high-pressure hydrogen flow channel valve (1519); the hydrogen monitoring flow channel (1530), the high-pressure hydrogen flow channel (1522), and the high-pressure hydrogen outlet (1523) are sequentially connected to each other, and the high-pressure hydrogen passes through the high-pressure hydrogen outlet (1523). The compressed hydrogen outlet (1523) reaches the circulation return pipeline, passes through the pressure reducing valve (21) and the hydrogen compressor (18) and returns to the low-pressure hydrogen return inlet (1503), thereby realizing the recycling of hydrogen; the hydrogen monitoring flow channel (1530), the normal hydrogen flow channel (1521), and the hydrogen mixing flow channel (1529) are interconnected in sequence; the fuel cell reactor hydrogen flow sensor (16) converts the flow required by the fuel cell reactor (17) into an electrical signal according to the operating state and demand of the hydrogen fuel cell vehicle and transmits the data to the third control device (1525); the third control device (1525) controls the third execution controller (1526) to accurately and intelligently adjust the size of the hydrogen mixed flow outlet valve (1527) to open the hydrogen mixed flow outlet (1528).

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