Hydrogen storage simulation equipment for fuel cell vehicle

Abstract

The utility model relates to the technical field of hydrogen production equipment, in particular to hydrogen storage simulation equipment for a fuel cell vehicle, which comprises a machine body, a hydrogen storage bottle transversely mounted in the machine body, a mass flow controller mounted in the machine body, and a branch pipe fixedly connected to one end of the mass flow controller. One end of the branch pipe is fixedly connected with a high-precision needle valve, and the bottom end of the mass flow controller is fixedly connected with a hydrogen inlet module and a hydrogen discharging module through pipelines. Hydrogen in a hydrogen storage bottle is conveyed into the hydrogen inlet module through a pipeline after a bottle opening ball valve is opened, hydrogen in the hydrogen inlet module is conveyed into the mass flow controller through a pipeline and then enters the hydrogen discharging module, the resistance of passing gas is simulated by adjusting the angle of a high-precision needle valve, and then the flow is controlled after the resistance of parts in the vehicle hydrogen storage system is simulated. And finally, the gas is converged into a hydrogen inlet module closed loop, so that the control of the gas pressure in the hydrogen storage system is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen production equipment, and in particular to a hydrogen storage simulation device for a fuel cell vehicle. Background Art

[0002] The on-board hydrogen storage system is an important component of fuel cell vehicles, including high-pressure hydrogen storage bottles, integrated bottle valves, filling ports, one-way valves, filters, pressure reducing valves, high-pressure and low-pressure sensors, hydrogen pipelines and other components. Its main function is to provide hydrogen with stable pressure and flow for the fuel cell system.

[0003] In the prior art, a patent with publication number CN214277419U discloses a hydrogen filling simulation test system, including a box body and a hydrogen transmission control component installed on the box body; the box body is provided with a high-pressure air inlet connector, a medium-pressure air inlet connector, a low-pressure air inlet connector, a high-pressure direct charging connector, a medium-pressure direct charging connector, a low-pressure direct charging connector, a flow meter outlet connector, a pressure reducing valve outlet connector and a supply and storage equipment connection connector; the high-pressure air inlet connector, the medium-pressure air inlet connector and the low-pressure air inlet connector are used to connect hydrogen sources of different pressures; the high-pressure direct charging connector, the medium-pressure direct charging connector and the low-pressure direct charging connector are used to connect hydrogen storage equipment.

[0004] The above structure can perform hydrogen circulation testing and multi-mode flow control through flow metering pipelines, pressure reducing pipelines and circulation test pipelines. In the existing actual hydrogen storage simulation test process, it is impossible to complete the simulation of the gas conditions in the pipeline, and the gas pressure control in the hydrogen storage simulation equipment is not accurate enough. Utility Model Content

[0005] In view of this, the purpose of the utility model is to propose a hydrogen storage simulation device for fuel cell vehicles to solve the problems that during the simulation test, the simulation of the gas conditions in the pipeline cannot be completed and the gas pressure control in the hydrogen storage simulation device is not accurate enough.

[0006] Based on the above purpose, the utility model provides a hydrogen storage simulation device for a fuel cell vehicle, comprising a body and a display mounted on the body, a hydrogen storage bottle is horizontally mounted inside the body, a bottle mouth ball valve is threadedly connected at the bottle mouth of the hydrogen storage bottle, a bottle mouth solenoid valve is fixedly mounted on one side of the bottle mouth ball valve, a hydrogen filling port is mounted on one side of the bottle mouth solenoid valve through a pipeline, and a hydrogen bottle pressure sensor is arranged on the pipeline between the hydrogen storage bottle and the bottle mouth solenoid valve;

[0007] A mass flow controller is also installed inside the body, one end of the mass flow controller is fixedly connected to a branch pipe, one end of the branch pipe is fixedly connected to a high-precision needle valve, the bottom end of the mass flow controller is fixedly connected to a hydrogen inlet module and a hydrogen exhaust module through pipelines, the hydrogen inlet module is connected to the bottle mouth solenoid valve, and the hydrogen inlet module and the hydrogen exhaust module are connected to each other through pipelines.

[0008] Preferably, the hydrogen inlet module comprises a hydrogen inlet seat installed inside the body, a connected solenoid valve is fixedly installed at the center of the hydrogen inlet seat, and a hydrogen inlet pipe and a hydrogen outlet pipe are fixedly connected at both ends of the hydrogen inlet seat, the other end of the hydrogen outlet pipe is connected to one end of a high-precision needle valve, and a straight-through pipe connected to the hydrogen exhaust module is fixedly connected at the bottom of the hydrogen inlet seat;

[0009] A high-pressure pressure sensor and a proportional valve are installed in sequence inside the hydrogen inlet seat and close to one end of the hydrogen inlet pipe. The high-pressure pressure sensor and the proportional valve are arranged on one side of the solenoid valve. A safety valve, a medium-pressure pressure sensor and a temperature sensor are also installed inside the hydrogen inlet seat. The safety valve, the medium-pressure pressure sensor and the temperature sensor are arranged on the other side of the solenoid valve.

[0010] Preferably, the hydrogen exhaust module comprises a hydrogen exhaust seat installed inside the body, a tail exhaust pressure sensor and a tail exhaust solenoid valve are fixedly installed on one side of the hydrogen exhaust seat, and the top of the hydrogen exhaust seat is fixedly connected to the bottom end of the straight-through pipe, and the other side of the hydrogen exhaust seat is fixedly connected to a second connecting pipe, the other end of the second connecting pipe is connected to the other end of the high-precision needle valve, and the second connecting pipe is connected to the branch pipe;

[0011] A connecting pipe 1 is fixedly connected to the bottom of the hydrogen exhaust seat, and the other end of the connecting pipe 1 is fixedly connected to one side of the mass flow controller.

[0012] Preferably, the hydrogen inlet module and the hydrogen exhaust module are arranged in parallel up and down, and a stop valve and a pressure reducing valve are provided between the bottle mouth solenoid valve and the hydrogen inlet module.

[0013] Preferably, a connecting pipe is provided between the tail exhaust pressure sensor and the proportional valve to form a closed loop, and a pressure relief port is provided at the bottom of the safety valve.

[0014] Preferably, one end of the bottle mouth solenoid valve is connected to a pressure gauge via a pipeline, and the inner wall of the body is also provided with a plurality of groups of hydrogen concentration sensors.

[0015] The beneficial effects of the utility model are as follows: the gas in the pipeline is closed by controlling the bottle mouth solenoid valve, and the hydrogen in the hydrogen storage bottle is transmitted to the hydrogen inlet module through the pipeline after the bottle mouth ball valve is opened. During the process, the hydrogen bottle pressure sensor is used to feed back the pressure of the gas at the outlet of the hydrogen storage bottle in real time, and the hydrogen in the hydrogen inlet module is transported to the mass flow controller through the pipeline, and then enters the hydrogen discharge module, and the mass flow controller controls the flow of the gas;

[0016] After adjusting the high-precision needle valve angle to simulate the resistance of the gas passing through, and then simulating the resistance of the components in the automotive hydrogen storage system, the flow is controlled to simulate the gas conditions in the automotive hydrogen storage system pipeline, and finally it is merged into the hydrogen inlet module closed loop to complete the control of the gas pressure in the hydrogen storage system. It has a high degree of accuracy and is used to quickly understand automotive hydrogen storage equipment and learn relevant knowledge about automotive hydrogen storage equipment components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the mass flow controller of the utility model and the hydrogen inlet module and the hydrogen outlet module;

[0020] Figure 3 It is a rear view structural schematic diagram of the utility model as a whole;

[0021] Figure 4 This is a schematic diagram of the structure of the hydrogen storage bottle of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the hydrogen outlet module of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the hydrogen inlet module of the utility model.

[0024] The markings in the figure are: 1. Display; 2. Hydrogen concentration sensor; 3. Pressure gauge; 4. Hydrogen storage bottle; 5. Bottle mouth ball valve; 6. Bottle mouth solenoid valve; 7. Hydrogen filling port; 8. Hydrogen discharge module; 9. Pressure reducing valve; 10. Stop valve; 11. Hydrogen outlet pipe; 12. Hydrogen inlet module; 13. Mass flow controller; 14. Connecting pipe 1; 15. Connecting pipe 2; 16. Straight pipe; 17. Hydrogen inlet pipe; 18. Tail exhaust pressure sensor; 19. Tail exhaust solenoid valve; 20. Temperature sensor; 21. Medium pressure sensor; 22. Safety valve; 23. Solenoid valve; 24. Proportional valve; 25. High pressure sensor; 26. Pressure relief port; 27. Hydrogen bottle pressure sensor; 28. Engine body; 29. ​​Wheels; 30. High-precision needle valve; 31. Hydrogen inlet seat; 32. Hydrogen discharge seat; 33. Branch pipe. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a hydrogen storage simulation device for a fuel cell vehicle comprises a body 28 and a display 1 mounted on the body 28, wheels 29 are fixedly mounted around the bottom end of the body 28, a hydrogen storage bottle 4 is horizontally mounted inside the body 28, a bottle mouth ball valve 5 is threadedly connected at the bottle mouth of the hydrogen storage bottle 4, a bottle mouth solenoid valve 6 is fixedly mounted on one side of the bottle mouth ball valve 5, a hydrogen filling port 7 is mounted on one side of the bottle mouth solenoid valve 6 through a pipeline, and a hydrogen bottle pressure sensor 27 is arranged on the pipeline between the hydrogen storage bottle 4 and the bottle mouth solenoid valve 6;

[0027] A mass flow controller 13 is also installed inside the body 28, one end of the mass flow controller 13 is fixedly connected to a branch pipe 33, one end of the branch pipe 33 is fixedly connected to a high-precision needle valve 30, the bottom end of the mass flow controller 13 is fixedly connected to a hydrogen inlet module 12 and a hydrogen exhaust module 8 through pipelines, the hydrogen inlet module 12 is connected to the bottle mouth solenoid valve 6, and the hydrogen inlet module 12 and the hydrogen exhaust module 8 are connected to each other through pipelines.

[0028] In this embodiment, the gas in the pipeline is closed by controlling the bottle mouth solenoid valve 6, and the hydrogen in the hydrogen storage bottle 4 is transmitted to the hydrogen inlet module 12 through the pipeline after the bottle mouth ball valve 5 is opened. During the process, the hydrogen bottle pressure sensor 27 is used to feedback the pressure of the gas at the outlet of the hydrogen storage bottle 4 in real time, and the hydrogen in the hydrogen inlet module 12 is transported to the mass flow controller 13 through the pipeline, and then enters the hydrogen discharge module 8, and the mass flow controller 13 controls the flow rate of the gas;

[0029] After adjusting the high-precision needle valve 30 degrees to simulate the resistance of the gas passing through, and then simulating the resistance of the components in the vehicle hydrogen storage system, the flow is controlled to simulate the gas conditions in the back-end pipeline of the vehicle hydrogen storage system, and finally merged into the hydrogen inlet module 12 closed loop to complete the control of the gas pressure in the hydrogen storage system. It is used to quickly understand the vehicle hydrogen storage equipment and learn the relevant knowledge of the components of the vehicle hydrogen storage equipment.

[0030] The hydrogen filling port 7 can simulate the hydrogen filling process in the vehicle hydrogen storage system, so that it is connected to the hydrogen filling port to fill the hydrogen storage bottle 4 with gas, thereby simulating the hydrogen filling process in the vehicle hydrogen storage system.

[0031] As an implementation method, Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the hydrogen inlet module 12 includes a hydrogen inlet seat 31 installed inside the body 28, a solenoid valve 23 is fixedly installed at the center of the hydrogen inlet seat 31, and the two ends of the hydrogen inlet seat 31 are respectively fixedly connected with a hydrogen inlet pipe 17 and a hydrogen outlet pipe 11, the other end of the hydrogen outlet pipe 11 is connected to one end of a high-precision needle valve 30, and the bottom of the hydrogen inlet seat 31 is fixedly connected with a straight pipe 16 connected to the hydrogen exhaust module 8;

[0032] A high-pressure pressure sensor 25 and a proportional valve 24 are installed in sequence inside the hydrogen inlet seat 31 and close to one end of the hydrogen inlet pipe 17. The high-pressure pressure sensor 25 and the proportional valve 24 are arranged on one side of the solenoid valve 23. A safety valve 22, a medium-pressure pressure sensor 21 and a temperature sensor 20 are also installed inside the hydrogen inlet seat 31. The safety valve 22, the medium-pressure pressure sensor 21 and the temperature sensor 20 are arranged on the other side of the solenoid valve 23.

[0033] In this embodiment, the closing of the unit gas in the hydrogen inlet module 12 is controlled by the solenoid valve 23. When the hydrogen is transmitted to the hydrogen inlet seat 31 through the bottle mouth solenoid valve 6 and the hydrogen inlet pipe 17, inside the hydrogen inlet seat 31, the hydrogen passes through the high-pressure pressure sensor 25 and the medium-pressure pressure sensor 21 at both ends to simulate the different pressures of the gas, and the temperature sensor 20 to simulate the different temperatures of the gas.

[0034] As an implementation method, Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the hydrogen discharge module 8 includes a hydrogen discharge seat 32 installed inside the body 28, and a tail discharge pressure sensor 18 and a tail discharge solenoid valve 19 are fixedly installed on one side of the hydrogen discharge seat 32, and the top of the hydrogen discharge seat 32 is fixedly connected to the bottom end of the straight-through pipe 16, and the other side of the hydrogen discharge seat 32 is fixedly connected to the second connecting pipe 15, and the other end of the second connecting pipe 15 is connected to the other end of the high-precision needle valve 30, and the second connecting pipe 15 is connected to the branch pipe 33;

[0035] A connecting pipe 14 is fixedly connected to the bottom of the hydrogen exhaust seat 32 , and the other end of the connecting pipe 14 is fixedly connected to one side of the mass flow controller 13 .

[0036] In this embodiment, when hydrogen is discharged from the hydrogen inlet module 12 through the hydrogen outlet pipe 11, it enters the mass flow controller 13. After the mass flow controller 13 simulates the flow resistance of the vehicle hydrogen storage pipeline, the gas is controlled to enter the interior of the hydrogen discharge module 8, and enters the hydrogen discharge seat 32 through the connecting pipe 14 and the connecting pipe 2 15 respectively. The tail exhaust pressure sensor 18 is used to feed back the pressure of the simulator in the hydrogen discharge pipeline of the hydrogen storage system in real time.

[0037] As an implementation method, Figure 1 , Figure 2 and Figure 3 As shown, the hydrogen inlet module 12 and the hydrogen discharge module 8 are arranged in parallel up and down, and a stop valve 10 and a pressure reducing valve 9 are arranged between the bottle mouth solenoid valve 6 and the hydrogen inlet module 12.

[0038] In this embodiment, the entire vehicle hydrogen storage process is simulated through the hydrogen inlet module 12, the hydrogen outlet module 8 and the mass flow controller 13, which is used to quickly understand the vehicle hydrogen storage equipment and system, while the stop valve 10 and the pressure reducing valve 9 facilitate the control of the gas flow in the pipeline.

[0039] As an implementation method, Figure 2 and Figure 6 As shown, a connecting pipe is provided between the tail-discharge pressure sensor 18 and the proportional valve 24 to form a closed loop, and a pressure relief port 26 is provided at the bottom of the safety valve 22 .

[0040] In this embodiment, the tail exhaust solenoid valve 19 forms a closed loop with the proportional valve 24 in the hydrogen inlet module 12 through pulse discharge to control the gas pressure in the hydrogen storage system. At the same time, when hydrogen is in the pipeline in the hydrogen inlet seat 31, the safety valve 22 is protected. When the pressure in the pipeline is greater than the set value, it automatically opens to discharge the gas through the pressure relief port 26 to protect the entire hydrogen storage system.

[0041] As an implementation method, Figure 1 , Figure 3 and Figure 4 As shown, one end of the bottle mouth solenoid valve 6 is connected to a pressure gauge 3 through a pipeline, and the inner wall of the body 28 is also provided with multiple groups of hydrogen concentration sensors 2.

[0042] Among them, the pressure in the hydrogen storage bottle 4 is read out through the pressure gauge 3, which is convenient for relevant personnel to observe the pressure of the simulated gas in the hydrogen bottle in real time and understand the working principle, while the hydrogen concentration sensor 2 monitors the hydrogen concentration content in the body 28 in real time to prevent hydrogen leakage.

[0043] Working principle: When in use, the gas in the pipeline is closed by controlling the bottle mouth solenoid valve 6, and the hydrogen in the hydrogen storage bottle 4 is transmitted to the hydrogen inlet module 12 through the pipeline after the bottle mouth ball valve 5 is opened, and the closing of the unit gas in the hydrogen inlet module 12 is controlled by the solenoid valve 23. When the hydrogen is transmitted to the hydrogen inlet seat 31 through the bottle mouth solenoid valve 6 and the hydrogen inlet pipe 17, inside the hydrogen inlet seat 31, the hydrogen passes through the high-pressure pressure sensor 25 and the medium-pressure pressure sensor 21 at both ends to simulate the different pressures of the gas, and the temperature sensor 20 to simulate the different temperatures of the gas. In the process, the hydrogen bottle pressure sensor 27 is used to feed back the pressure of the gas at the outlet of the hydrogen storage bottle 4 in real time;

[0044] The hydrogen in the hydrogen inlet module 12 is transported to the mass flow controller 13 through the pipeline, and then enters the hydrogen discharge module 8. After the mass flow controller 13 simulates the flow resistance of the vehicle hydrogen storage pipeline, the high-precision needle valve 30 is adjusted to simulate the resistance of the gas passing through, and then the resistance of the components in the vehicle hydrogen storage system is simulated to control the flow rate;

[0045] The control gas enters the interior of the hydrogen discharge module 8, and enters the hydrogen discharge seat 32 through the connecting pipe 14 and the connecting pipe 2 15 respectively. The tail exhaust pressure sensor 18 is used to feed back the pressure of the simulator in the hydrogen discharge pipeline of the hydrogen storage system in real time. The tail exhaust solenoid valve 19 forms a closed loop with the proportional valve 24 in the hydrogen inlet module 12 through pulse discharge to complete the control of the gas pressure in the hydrogen storage system. At the same time, when the hydrogen is in the pipeline in the hydrogen inlet seat 31, the safety valve 22 is protected. When the pressure in the pipeline is greater than the set value, it automatically opens to discharge the gas through the pressure relief port 26 to protect the entire hydrogen storage system, thereby simulating the gas situation in the rear-end pipeline of the vehicle hydrogen storage system, and finally merging into the hydrogen inlet module 12 closed loop to complete the control of the gas pressure in the hydrogen storage system, which is used to quickly understand vehicle hydrogen storage equipment and learn relevant knowledge about vehicle hydrogen storage equipment components.

[0046] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0047] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A hydrogen storage simulation device for a fuel cell vehicle, comprising a body (28) and a display (1) mounted on the body (28), characterized in that: A hydrogen storage bottle (4) is installed horizontally inside the machine body (28); a bottle mouth ball valve (5) is threadedly connected to the bottle mouth of the hydrogen storage bottle (4); a bottle mouth solenoid valve (6) is fixedly installed on one side of the bottle mouth ball valve (5); a hydrogen filling port (7) is installed on one side of the bottle mouth solenoid valve (6) through a pipeline; and a hydrogen bottle pressure sensor (27) is provided in the pipeline between the hydrogen storage bottle (4) and the bottle mouth solenoid valve (6); A mass flow controller (13) is also installed inside the body (28), one end of the mass flow controller (13) is fixedly connected to a branch pipe (33), one end of the branch pipe (33) is fixedly connected to a high-precision needle valve (30), the bottom end of the mass flow controller (13) is fixedly connected to a hydrogen inlet module (12) and a hydrogen discharge module (8) through pipelines, the hydrogen inlet module (12) is connected to the bottle mouth solenoid valve (6), and the hydrogen inlet module (12) and the hydrogen discharge module (8) are connected to each other through pipelines.

2. A hydrogen storage simulation device for a fuel cell vehicle according to claim 1, characterized in that: The hydrogen inlet module (12) comprises a hydrogen inlet seat (31) installed inside the body (28), a solenoid valve (23) is fixedly installed at the center of the hydrogen inlet seat (31), and a hydrogen inlet pipe (17) and a hydrogen outlet pipe (11) are fixedly connected at both ends of the hydrogen inlet seat (31), the other end of the hydrogen outlet pipe (11) is connected to one end of a high-precision needle valve (30), and a straight-through pipe (16) connected to the hydrogen exhaust module (8) is fixedly connected at the bottom of the hydrogen inlet seat (31); A high-pressure pressure sensor (25) and a proportional valve (24) are sequentially installed inside the hydrogen inlet seat (31) and close to one end of the hydrogen inlet pipe (17); the high-pressure pressure sensor (25) and the proportional valve (24) are arranged on one side of the solenoid valve (23); a safety valve (22), a medium-pressure pressure sensor (21) and a temperature sensor (20) are also installed inside the hydrogen inlet seat (31); the safety valve (22), the medium-pressure pressure sensor (21) and the temperature sensor (20) are arranged on the other side of the solenoid valve (23).

3. A hydrogen storage simulation device for a fuel cell vehicle according to claim 2, characterized in that: The hydrogen discharge module (8) comprises a hydrogen discharge seat (32) installed inside the body (28), a tail discharge pressure sensor (18) and a tail discharge solenoid valve (19) are fixedly installed on one side of the hydrogen discharge seat (32), and the top of the hydrogen discharge seat (32) is fixedly connected to the bottom end of the straight-through pipe (16), and the other side of the hydrogen discharge seat (32) is fixedly connected to a second connecting pipe (15), the other end of the second connecting pipe (15) is connected to the other end of the high-precision needle valve (30), and the second connecting pipe (15) is communicated with a branch pipe (33); The bottom of the hydrogen discharge seat (32) is fixedly connected to a connecting pipe (14), and the other end of the connecting pipe (14) is fixedly connected to one side of the mass flow controller (13).

4. A hydrogen storage simulation device for a fuel cell vehicle according to claim 3, characterized in that: The hydrogen inlet module (12) and the hydrogen discharge module (8) are arranged in parallel up and down, and a stop valve (10) and a pressure reducing valve (9) are arranged between the bottle mouth solenoid valve (6) and the hydrogen inlet module (12).

5. A hydrogen storage simulation device for a fuel cell vehicle according to claim 3, characterized in that: A connecting pipe is provided between the tail-discharge pressure sensor (18) and the proportional valve (24) to form a closed loop, and a pressure relief port (26) is provided at the bottom of the safety valve (22).

6. A hydrogen storage simulation device for a fuel cell vehicle according to claim 1, characterized in that: One end of the bottle mouth solenoid valve (6) is connected to a pressure gauge (3) via a pipeline, and the inner wall of the machine body (28) is also provided with a plurality of groups of hydrogen concentration sensors (2).

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