Practical training platform for hydrogen fuel cell engine

Abstract

The utility model discloses a practical training platform for a hydrogen fuel cell engine. The practical training platform comprises a hydrogen supply system, an air supply system, a thermal management system, an electric pile, a DC / DC (Direct Current / Direct Current) and a measurement panel, the hydrogen supply system, the air supply system, the thermal management system, the galvanic pile and the DC / DC are all connected with the measurement panel, the hydrogen supply system is connected with the galvanic pile, the galvanic pile is connected with the thermal management system, the air supply system is connected with the thermal management system, and the air supply system is connected with the galvanic pile. According to the utility model, on the basis of ensuring the safe and stable operation of the hydrogen fuel cell engine, the structure is optimized, the cost is reduced, the functions of signal measurement, fault diagnosis and the like are added, and the requirement of training the practical operation capability of hydrogen fuel cell talents is met; basic teaching tasks such as the basic principle of a hydrogen fuel cell system, disassembly and assembly of key components and disassembly and assembly of wire harnesses can be well achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cell systems, in particular to a hydrogen fuel cell engine training platform. Background Art

[0002] With the development of science and technology, hydrogen energy and fuel cells have become an important support for my country's energy transformation. The major of hydrogen fuel cells has the characteristics of multiple disciplines and high technical difficulty, and requires high practical operation ability of talents in related fields. However, most universities and enterprises lack the cultivation of practical operation ability of hydrogen fuel cell talents. The main problems are as follows:

[0003] (1) Currently, hydrogen fuel cells are mostly used in industrial fields such as electricity and transportation. They are costly, complex in structure, and difficult to assemble and disassemble, making them unsuitable for practical teaching.

[0004] (2) Traditional hydrogen fuel cell engine training platforms can only teach the disassembly and assembly of hardware such as mechanical parts. They do not have functions such as signal measurement and fault diagnosis, and cannot meet the needs of hydrogen fuel cell talent training.

[0005] Therefore, how to adapt to social needs and provide a hydrogen fuel cell engine training platform with lower cost, simpler structure, easier disassembly and assembly, and more complete functions for the training of hydrogen fuel cell talents is an important technical issue that needs to be solved urgently. Utility Model Content

[0006] The purpose of the utility model is to provide a hydrogen fuel cell engine training platform to solve the problems in the prior art.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a hydrogen fuel cell engine training platform, comprising a hydrogen supply system, an air supply system, a thermal management system, a fuel cell stack, a DC / DC and a measurement panel; the hydrogen supply system, the air supply system, the thermal management system, the fuel cell stack and the DC / DC are all connected to the measurement panel, the hydrogen supply system is connected to the fuel cell stack, the fuel cell stack is connected to the thermal management system, the air supply system is connected to the thermal management system, and the air supply system is connected to the fuel cell stack.

[0008] Preferably, the hydrogen supply system includes a high-pressure hydrogen cylinder, a safety valve, a medium-pressure sensor, a hydrogen inlet solenoid valve, a proportional valve, a pressure relief valve, a hydrogen exhaust valve and a hydrogen inlet pressure sensor; the safety valve, the medium-pressure sensor, the hydrogen inlet solenoid valve, the proportional valve and the hydrogen inlet pressure sensor are installed in sequence on the pipeline between the high-pressure hydrogen cylinder and the fuel cell stack, and the pressure relief valve is located on the branch pipeline between the proportional valve and the hydrogen inlet pressure sensor.

[0009] Preferably, the air supply system includes an air filter, an air mass flow meter, an air compressor, a humidifier, a temperature sensor, a front throttle valve and a rear throttle valve.

[0010] Preferably, the thermal management system includes a radiator, a water tank, a water pump, an intercooler, a deionizer, a liquid level sensor, a particle filter, a water inlet pressure sensor, a water inlet temperature sensor, and a water outlet temperature sensor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] This application includes a hydrogen supply system, an air supply system, a thermal management system, a fuel cell stack, a DC / DC and a measurement panel. On the basis of ensuring the safe and stable operation of the hydrogen fuel cell engine, it optimizes the structure, reduces the cost, and adds functions such as signal measurement and fault diagnosis to meet the needs of cultivating practical skills of hydrogen fuel cell talents.

[0013] It can better achieve basic teaching tasks such as the basic principles of hydrogen fuel cell systems, disassembly and assembly of key components, and disassembly and assembly of wiring harnesses. It can also measure the real electrical signal values ​​of key signals of each subsystem when they are working on the measurement panel through instruments such as multimeters and oscilloscopes, and can achieve signal measurement, common fault diagnosis teaching and practical training tasks of system sensors and actuator components through fault injection functions.

[0014] Taking into account the actual practical teaching needs, the training platform optimizes the system structure and reduces the disassembly difficulty and production cost while ensuring safe and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a system architecture diagram of the utility model;

[0017] Figure 2 This is a structural diagram of a hydrogen fuel cell of the utility model;

[0018] Figure 3 This is a measurement panel interface diagram of the present utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0020] See also Figure 1 In an embodiment of the utility model, a hydrogen fuel cell engine training platform includes a hydrogen supply system, an air supply system, a thermal management system, a fuel cell stack, a DC / DC and a measurement panel; the hydrogen supply system, the air supply system, the thermal management system, the fuel cell stack and the DC / DC are all connected to the measurement panel, the hydrogen supply system is connected to the fuel cell stack, the fuel cell stack is connected to the thermal management system, the air supply system is connected to the thermal management system, and the air supply system is connected to the fuel cell stack.

[0021] like Figure 2-3 ; The hydrogen supply system includes a high-pressure hydrogen cylinder, a safety valve, a medium-pressure sensor, a hydrogen inlet solenoid valve, a proportional valve, a pressure relief valve, a hydrogen exhaust valve and a hydrogen inlet pressure sensor; The pipeline between the high-pressure hydrogen cylinder and the fuel cell stack is sequentially installed with a safety valve, a medium-pressure sensor, a hydrogen inlet solenoid valve, a proportional valve and a hydrogen inlet pressure sensor, and the pressure relief valve is located on the branch pipeline between the proportional valve and the hydrogen inlet pressure sensor. The air supply system includes an air filter, an air mass flow meter, an air compressor, a humidifier, a temperature sensor, a front throttle and a rear throttle. The thermal management system includes a radiator, a water tank, a water pump, an intercooler, a deionizer, a liquid level sensor, a particulate filter, a water inlet pressure sensor, a water inlet temperature sensor, and a water outlet temperature sensor.

[0022] The actual electrical signal value of each subsystem's key signals when working can be measured on the measurement panel through instruments such as multimeters and oscilloscopes. At the same time, the measurement panel can realize the fault injection function to carry out common fault diagnosis teaching and training of sensors and actuator components of each subsystem.

[0023] The hydrogen supply system can provide the fuel cell stack with hydrogen with stable pressure and appropriate proportion. The high-pressure hydrogen is reduced to 8-12 bar from the hydrogen cylinder through the proportional valve opening adjustment and then transported to the hydrogen inlet of the fuel cell stack. The hydrogen inlet solenoid valve opens when the fuel cell stack is working and closes in an emergency to ensure the safety of the hydrogen supply system. The unreacted hydrogen in the fuel cell stack is discharged through the hydrogen exhaust valve.

[0024] The air supply system can provide the fuel cell stack with air with stable pressure and appropriate flow. The external air first passes through the air filter to remove impurities such as particles and sulfides to prevent catalyst poisoning, and then enters the air compressor for compression and boosting after being measured by the flow meter to reach the pressure required for the fuel cell stack reaction. At the same time, in order to prevent the fuel cell stack from being damaged by excessive intake temperature, an intercooler is configured at the air compressor outlet to cool the gas at the air compressor outlet. When the fuel cell stack is working normally, the front throttle valve is always open. After the fuel cell stack stops working, the front throttle valve is closed, and DC / DC is used for discharge operation to consume the air remaining in the air circuit.

[0025] The thermal management system can monitor the operating temperature of the fuel cell stack to ensure that the operating temperature of the hydrogen fuel cell remains within a reasonable range. After the cooling water enters the fuel cell stack and intercooler for heat exchange, it exchanges heat with the cold air of the external environment through the radiator, and then the cooled cooling water is pumped back into the fuel cell stack by the water pump to complete the cooling water cycle.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hydrogen fuel cell engine training platform, characterized by: It includes a hydrogen supply system, an air supply system, a thermal management system, a fuel cell stack, a DC / DC and a measurement panel; the hydrogen supply system, the air supply system, the thermal management system, the fuel cell stack and the DC / DC are all connected to the measurement panel, the hydrogen supply system is connected to the fuel cell stack, the fuel cell stack is connected to the thermal management system, the air supply system is connected to the thermal management system, and the air supply system is connected to the fuel cell stack; The hydrogen supply system includes a high-pressure hydrogen cylinder, a safety valve, a medium-pressure sensor, a hydrogen inlet solenoid valve, a proportional valve, a pressure relief valve, a hydrogen exhaust valve and a hydrogen inlet pressure sensor; the pipeline between the high-pressure hydrogen cylinder and the fuel cell stack is sequentially installed with a safety valve, a medium-pressure sensor, a hydrogen inlet solenoid valve, a proportional valve and a hydrogen inlet pressure sensor, and the pressure relief valve is located on a branch pipeline between the proportional valve and the hydrogen inlet pressure sensor; The air supply system includes an air filter, an air mass flow meter, an air compressor, a humidifier, a temperature sensor, a front throttle valve and a rear throttle valve; The thermal management system includes a radiator, a water tank, a water pump, an intercooler, a deionizer, a liquid level sensor, a particle filter, a water inlet pressure sensor, a water inlet temperature sensor, and a water outlet temperature sensor.

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