CN214667658U - Hydrogen fuel cell engine system test platform - Google Patents
Hydrogen fuel cell engine system test platform Download PDFInfo
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- CN214667658U CN214667658U CN202022564806.7U CN202022564806U CN214667658U CN 214667658 U CN214667658 U CN 214667658U CN 202022564806 U CN202022564806 U CN 202022564806U CN 214667658 U CN214667658 U CN 214667658U
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Abstract
The utility model relates to a battery engine tests technical field, concretely relates to hydrogen fuel cell engine system test platform, include: the system comprises a hydrogen supply system, a gas supply system, a tail exhaust system, a main heat dissipation system and an output system; the utility model discloses a with each system integration to test platform that hydrogen fuel cell engine system test is required, the signal of each system position is gathered to test controller through test platform is from the spare part that the monitoring and control test process related, test parameter etc, and can provide the hydrogen supply parameter of ideal for hydrogen fuel cell engine system according to the monitoring result, working parameter such as air feed parameter, and then realize the detection to hydrogen fuel cell engine power system through controllable working parameter to hydrogen fuel cell engine system, the debugging, optimize and the improvement of product, also can carry out the test under the various extreme environment to hydrogen fuel cell engine system.
Description
Technical Field
The utility model relates to a battery engine tests technical field, especially relates to a hydrogen fuel cell engine system test platform.
Background
In the current society, the problems of environmental pollution, non-regeneration of petroleum resources and the like are always the problems that people need to overcome, power energy has become the hot spot of research and development in the world field, and the hydrogen fuel cell engine has the greatest advantages of high efficiency, low energy consumption and zero pollution, and must be realized through scientific and standardized tests in research and development of the hydrogen fuel cell engine. However, the operation of the hydrogen fuel cell engine requires specific conditions of temperature, pressure, humidity, flow rate, etc., any one of which affects the output power of the hydrogen fuel cell engine, in the development stage of the hydrogen fuel cell engine, the test is indispensable, in order to evaluate and detect the hydrogen fuel cell engine system assembly, an experiment platform and a test system which can complete the test of the hydrogen fuel cell engine system body and the hydrogen fuel cell engine system assembly are needed, existing laboratory platforms and test systems do not integrate the various systems or components required for testing, so that the components, test parameters and the like related to the test process need to be manually operated and monitored in the test process, the operation is inconvenient, therefore, the detection, debugging and optimization of the hydrogen fuel cell engine power system and the improvement of products cannot be realized through controllable working parameters.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a hydrogen fuel cell engine system test platform for solve among the prior art current experiment platform and test system and do not be in the same place each system or spare part integration that the test is required, make in the testing process need the spare part that manual operation and monitoring test process related, test parameter etc. the operation is inconvenient, thereby can not realize the problem such as the improvement to hydrogen fuel cell engine power system's detection, debugging, optimization and product through controllable working parameter.
The utility model adopts the technical scheme as follows:
according to an aspect of the embodiments of the present invention, there is provided a hydrogen fuel cell engine system test platform, including:
the system comprises a hydrogen supply system, a gas supply system, a tail exhaust system, a main heat dissipation system and an output system;
the hydrogen supply system is communicated with an inlet of a hydrogen gas path of the hydrogen fuel cell engine system; the gas supply system is communicated with an inlet of an air path of the hydrogen fuel cell engine system; the tail gas exhaust system comprises an air exhaust channel and a hydrogen exhaust channel, the air exhaust channel is communicated with an outlet of an air path of the hydrogen fuel cell engine system, and the hydrogen exhaust channel is communicated with an outlet of a hydrogen path of the hydrogen fuel cell engine system; the main heat dissipation system is communicated with an outlet of the hydrogen fuel cell engine system cooling liquid circulating heat dissipation loop; the output system is electrically connected with an output assembly of the hydrogen fuel cell engine system.
The utility model has the advantages that: the utility model integrates each system required by the test of the hydrogen fuel cell engine system to the test platform, in the test process of the hydrogen fuel cell engine system, the working states of the hydrogen supply system, the gas supply system, the tail exhaust system, the main heat dissipation system and the output system are monitored and controlled in real time through the test controller arranged in the test platform, namely, the signals of each system position are collected by the test controller to automatically monitor and control the parts, the test parameters and the like related to the test process, ideal hydrogen supply parameters, gas supply parameters and other working parameters can be provided for the hydrogen fuel cell engine system according to the monitoring result, further, the detection, debugging, optimization and product improvement of the hydrogen fuel cell engine system can be realized through the controllable working parameters, and the test under various extreme environments can be carried out on the hydrogen fuel cell engine system, and obtaining the optimal working and running environment of the hydrogen fuel cell engine system.
On the basis of the technical scheme, the invention can be further improved as follows.
Optionally, the hydrogen supply system comprises:
the hydrogen supply gas path, and a hydrogen storage bottle, a first pressure reducing valve, a first electromagnetic valve, an electric regulating valve and an ejector which are sequentially communicated with each other through the hydrogen supply gas path;
the output end of the hydrogen supply gas path is communicated with the inlet of the hydrogen path of the hydrogen fuel cell engine system, and the hydrogen supply gas path is also provided with a first pressure sensor, a first flowmeter and a second pressure sensor; the first pressure sensor is positioned between the hydrogen storage bottle and the first pressure reducing valve, the first flow meter is positioned between the electric regulating valve and the ejector, and the second pressure sensor is positioned between the ejector and an inlet of a hydrogen gas path of the hydrogen fuel cell engine system.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: because the first relief pressure valve of hydrogen supply system, first solenoid valve, the electrical control valve, the ejector, first pressure sensor, first flowmeter and second pressure sensor are connected with the test controller electricity respectively, each spare part in the hydrogen supply system is monitored and control automatically to the test controller, under the control of test controller, first pressure sensor is owing to detect the pressure of hydrogen in the hydrogen storage bottle and give the test controller with the pressure value real-time feedback of hydrogen, the test controller controls the supply and the end that are used for the required hydrogen of hydrogen fuel cell engine through controlling opening and shutting of first solenoid valve. The first flow meter is used for detecting the flow of hydrogen gas in the hydrogen supply gas path and feeding the detected gas flow value back to the test controller in real time, then the test controller adjusts the electric regulating valve according to the gas flow value detected by the first flow meter, and the flow of the hydrogen gas supplied by the hydrogen storage bottle is adjusted through the electric regulating valve so as to ensure the safe and reliable operation of the hydrogen fuel cell engine. The high-pressure low-speed hydrogen gas is injected into the low-pressure high-speed hydrogen gas through the flow passage in the injector, and the hydrogen which is not completely reacted in the hydrogen discharge passage can be injected and utilized again, so that the hydrogen utilization rate and the system efficiency are improved. The second pressure sensor is used for detecting the air inlet pressure of the inlet of the hydrogen gas circuit of the hydrogen fuel cell engine system in real time, and feeding the air inlet pressure back to the test controller, and the test controller adjusts the first pressure reducing valve according to the air inlet pressure, so that the high-pressure hydrogen is reduced to be the low-pressure hydrogen required by the test of the hydrogen fuel cell engine system through the first pressure reducing valve, and the system requirements are met.
Optionally, the gas supply system includes:
the air supply system comprises an air supply gas path, and an air compressor, an intercooler and a membrane humidifier which are sequentially communicated with the air supply gas path, wherein the air compressor is electrically connected with an air compressor controller; the output end of the gas supply path is communicated with the inlet of the air path of the hydrogen fuel cell engine system, and the gas supply path is also provided with a second flowmeter, a third pressure sensor, a first temperature sensor and a humidity sensor;
the second flowmeter is located the air inlet of air compressor machine, third pressure sensor is located the air compressor machine with between the intercooler, first temperature sensor is located the intercooler with between the membrane humidifier, humidity transducer is located the membrane humidifier with between the import of hydrogen fuel cell engine system air circuit.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: the second flowmeter, the air compressor controller, the intercooler, the membrane humidifier, the third pressure sensor, the first temperature sensor and the humidity sensor are respectively and electrically connected with the test controller, so that under the monitoring and control of the test controller, the second flowmeter is used for detecting the air inflow of the air inlet of the air compressor and feeding back the air inflow to the test controller in real time; the air compressor is used for compressing air to increase the pressure of the air to the pressure required by the hydrogen fuel cell engine system, the third pressure sensor is used for detecting the pressure of the air compressed by the air compressor and feeding the pressure back to the test controller in real time, and the test controller adjusts the air compressor controller according to the pressure of the air detected by the third pressure sensor so as to control the air compression processing of the air compressor, so that the pressure required by the hydrogen fuel cell engine system is ensured; after air is compressed by an air compressor, heat generated during air compression is controlled in a required temperature range through a cooling liquid medium in an intercooler, and then the temperature of an air supply air path is detected in real time through a first temperature sensor and fed back to a test controller; the test controller controls the membrane humidifier to increase the humidity of air entering the fuel cell engine system and ensures that the engine works at proper humidity, and the humidity sensor is used for detecting the humidity of the air at the inlet of the air passage of the battery engine system in real time and feeding the humidity back to the test controller in real time.
Optionally, the tail gas exhaust system further comprises a buffer block, and the air exhaust channel and the hydrogen exhaust channel are both introduced into the buffer block;
the air discharge channel is communicated with the membrane humidifier on the air supply path through an outlet of an air path of the hydrogen fuel cell engine system, and the air discharge channel is sequentially provided with a fourth pressure sensor and a second electromagnetic valve;
the hydrogen discharge passage is provided with a fifth pressure sensor, a hydrogen water separator and a third electromagnetic valve in sequence, and the hydrogen water separator is communicated with the ejector.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: the air discharge channel and the hydrogen discharge channel of the tail discharge system respectively discharge the gas in the air path and the hydrogen path of the hydrogen fuel cell engine system into the buffer block, and the discharged gas is fully mixed by the buffer block and then discharged out of the system, so that the safe and reliable operation of the system is ensured; the fourth pressure sensor detects the gas pressure at the outlet of an air path of the fuel cell engine, the second electromagnetic valve controls the air exhaust discharged by the air discharge channel, and the second electromagnetic valve is adjusted by the test controller according to the air humidity detected by the humidity sensor so as to control the humidification quantity of the membrane humidifier on the air supply path; the fifth pressure sensor is used for detecting the exhaust pressure of the outlet of the hydrogen gas path of the hydrogen fuel cell engine system; the third solenoid valve controls hydrogen water separator under test controller's control and realizes the emission of water and hydrogen tail gas, and hydrogen water separator is used for separating hydrogen and water to realize recycle through the ejector with the hydrogen that does not react completely once more, improve the utilization ratio of hydrogen, and with the water drainage buffer block that hydrogen fuel cell engine system chemical reaction produced.
Optionally, the main heat dissipation system includes: the heat radiator comprises a main heat radiation waterway, and a first circulating water pump, a third flow meter, a thermostat and a main heat radiator which are sequentially arranged on the main heat radiation waterway, wherein a heating channel is arranged between a heating outlet of the thermostat and an outlet of the main heat radiator, and a PTC heater is arranged on the heating channel;
and a second temperature sensor, a third temperature sensor and a fourth temperature sensor are further arranged on the main heat-radiating water path, the second temperature sensor is positioned between the first circulating water pump and the third flow meter, the third temperature sensor is positioned between the thermostat and the main heat radiator, and the fourth temperature sensor is positioned at an outlet of the main heat radiator.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: the first circulating water pump, the third flow meter, the thermostat, the main radiator, the PTC heater, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are respectively and electrically connected with the test controller, the first circulating water pump is used for conveying cooling liquid for a main radiating water path to work in a circulating mode, the third flow meter is used for detecting the flow of the cooling liquid and feeding the flow back to the test controller in real time, and the first circulating water pump is controlled through the test controller to realize the control of the flow of the cooling liquid, so that the radiating capacity is controlled; the thermostat plays a role in saving energy consumption, before the temperature of the system does not reach the normal working temperature, the thermostat is closed to a port communicated with the main radiating water path, so that the cooling liquid does not pass through the main radiator but passes through a heating channel of the PTC heater, and the PTC heater is used for heating the cooling liquid in a low-temperature environment, so that the system can work in the low-temperature environment, and the temperature of the system meets the starting working temperature of the system; the main heat radiator is used for exchanging heat of the main heat radiating waterway so as to cool the system; the second temperature sensor is used for detecting the temperature of the cooling liquid at the outlet of the cooling liquid circulating heat dissipation loop of the hydrogen fuel cell engine system; the third temperature sensor is used for detecting the temperature of the cooling liquid circulation heat dissipation loop of the hydrogen fuel cell engine system when the cooling liquid enters the main radiator, and the fourth temperature sensor is used for detecting the temperature of the cooling liquid at the outlet of the main radiator.
Optionally, the method further includes:
and the purging system comprises a purging gas channel, a nitrogen storage bottle, a fifth pressure sensor, a second pressure reducing valve and a fourth electromagnetic valve which are sequentially arranged on the purging gas channel, and an outlet of the purging gas channel is arranged on the hydrogen supply path and is positioned between the first electromagnetic valve and the electric regulating valve.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: the nitrogen storage bottle of the purging system is used for storing nitrogen gas for purging the system before starting and after finishing the system, purging water in a system stack of the hydrogen fuel cell engine, and preventing the hydrogen fuel cell engine from being damaged by cathode corrosion due to high voltage; the fifth pressure sensor, the second pressure reducing valve and the fourth electromagnetic valve are respectively and electrically connected with the test controller, and the fifth pressure sensor detects the pressure of the nitrogen in the nitrogen storage bottle and feeds the pressure back to the test controller in real time; the second pressure reducing valve is used for reducing the pressure of the high-pressure nitrogen flowing out of the nitrogen storage bottle into the required low-pressure nitrogen; and the fourth electromagnetic valve is used for controlling the supply and the cut-off of the purging nitrogen required by the hydrogen fuel cell engine.
Optionally, the output system includes: the system comprises a direct current voltage converter DC-DC, a load, a storage battery, a first voltage sensor, a first current sensor, a second voltage sensor, a second current sensor, a third voltage sensor and a third current sensor, wherein the load is electrically connected with an output assembly of the hydrogen fuel cell engine system through the direct current voltage converter DC-DC, and the storage battery, the second voltage sensor and the second current sensor are respectively and electrically connected with an input end of the load; the first voltage sensor and the first current sensor are electrically connected with an output assembly of the hydrogen fuel cell engine system; the third voltage sensor and the third current sensor are electrically connected to the battery.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: the system power is absorbed by loading a load of an output system, namely, the current generated by a hydrogen fuel cell engine is consumed by the load, and the dynamic response of the system performance can be realized according to the regulation and control of the load, wherein a direct current voltage converter DC-DC, a storage battery, a first voltage sensor, a first current sensor, a second voltage sensor, a second current sensor, a third voltage sensor and a third current sensor are respectively and electrically connected with a test controller, the second voltage sensor is used for detecting the input voltage of a load end in real time, and the second current sensor is used for detecting the input current of the load end in real time; the direct-current voltage converter DC-DC is used for converting the voltage of an output assembly of the hydrogen fuel cell engine system into the voltage required by a system load to realize the voltage transformation function; the storage battery is used for storing electric quantity and providing voltage stabilization and energy supplement and storage for the system when the hydrogen fuel cell engine system reacts and voltage power fluctuation occurs, the third voltage sensor is used for detecting the output and input voltage of the storage battery in real time, and the third current sensor is used for detecting the output and input current of the storage battery in real time; the first voltage sensor is used for detecting the output assembly voltage of the hydrogen fuel cell engine system in real time, and the first current sensor is used for detecting the output assembly current of the hydrogen fuel cell engine system in real time, so that the power of the hydrogen fuel cell engine is measured according to the voltage detected by the first voltage sensor and the current detected by the first current sensor through the test controller.
Optionally, the method further includes:
the auxiliary heat dissipation system comprises an auxiliary heat dissipation water path, a fifth temperature sensor, an auxiliary radiator, a second circulating water pump, a sixth temperature sensor, a fourth flowmeter, a seventh temperature sensor and an eighth temperature sensor;
one end of the auxiliary heat dissipation water path is communicated with an outlet of the DC-DC converter, and the other end of the auxiliary heat dissipation water path is communicated with the air compressor; the fifth temperature sensor, the auxiliary radiator, the second circulating water pump, the sixth temperature sensor and the fourth flowmeter are sequentially arranged on the auxiliary heat dissipation water path;
the seventh temperature sensor is arranged at the outlet of the air compressor controller; the eighth temperature sensor is arranged at an outlet of the intercooler.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: the auxiliary heat dissipation system performs auxiliary heat dissipation on the test platform under the control of the test controller, wherein a fifth temperature sensor, an auxiliary heat sink, a second circulating water pump, a sixth temperature sensor, a fourth flow meter, a seventh temperature sensor and an eighth temperature sensor are respectively electrically connected with the test controller, the second circulating water pump conveys cooling liquid which works circularly for an auxiliary heat dissipation water path under the control of the test controller, and the sixth temperature sensor is used for detecting the temperature of the cooling liquid at the DC-DC outlet of the DC voltage converter; the auxiliary radiator is used for exchanging heat so as to cool parts such as an air compressor controller and the like on the auxiliary heat dissipation water path, and the fifth temperature sensor is used for detecting the temperature of cooling liquid at the outlet of the auxiliary radiator; the fourth flowmeter is used for detecting the flow of the cooling liquid of the auxiliary heat dissipation water channel and feeding the flow back to the test controller, and the test controller controls the flow of the cooling liquid by controlling the second circulating water pump so as to adjust the heat dissipation capacity; the seventh temperature sensor is used for detecting the temperature of the cooling liquid at the outlet of the air compressor controller, and the eighth temperature sensor is used for detecting the temperature of the cooling liquid at the outlet of the intercooler.
Optionally, the air supply system further includes an air filter for removing particulate impurities in the air, and the air filter is disposed at the air inlet of the air compressor and before the second flowmeter.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: particulate impurities in the air are removed through an air filter electrically connected with the test controller so as to ensure the cleanliness of the gas required by the hydrogen fuel cell engine system.
Optionally, the system further comprises an upper computer 8 and a working state display 9.
The embodiment of the utility model provides an adopt above-mentioned optional technical scheme's beneficial effect to be: the working state of each system is displayed on the working state display after the signals of the positions of each system are collected by the test controller, and the parameters of each system part are adjusted and controlled by the upper computer, so that the optimal working operation environment of the hydrogen fuel cell engine system is obtained.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a test platform of a hydrogen fuel cell engine system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a hydrogen fuel cell engine system testing platform according to an embodiment of the present invention.
In the figure:
1-a hydrogen supply system, 101-a hydrogen supply gas path, 102-a hydrogen storage bottle, 103-a first pressure reducing valve, 104-a first electromagnetic valve, 105-an electric regulating valve, 106-a first pressure sensor, 107-a first flowmeter, 108-an ejector and 109-a second pressure sensor;
2-an air supply system, 201-an air supply path, 202-a second flowmeter, 203-an air compressor, 2030-an air compressor controller, 204-an intercooler, 205-a membrane humidifier, 206-a third pressure sensor, 207-a first temperature sensor, 208-a humidity sensor and 209-an air filter;
3-tail exhaust system, 301-air discharge channel, 302-hydrogen discharge channel, 303-buffer block, 304-fourth pressure sensor, 305-second electromagnetic valve, 306-fifth pressure sensor, 307-hydrogen water separator, 308-third electromagnetic valve;
4-a main heat dissipation system, 401-a main heat dissipation waterway, 402-a first circulating water pump, 403-a third flowmeter, 404-a thermostat, 405-a main heat radiator, 406-a heating channel, 407-a PTC heater, 408-a second temperature sensor, 409-a third temperature sensor and 410-a fourth temperature sensor;
5-purging system, 501-purging gas channel, 502-nitrogen storage bottle, 503-fifth pressure sensor, 504-second pressure reducing valve, 505-fourth electromagnetic valve;
6-output system, 601-direct voltage converter DC-DC, 602-load, 603-battery, 604-first voltage sensor, 605-first current sensor, 606-second voltage sensor, 607-second current sensor, 608-third voltage sensor, 609-third current sensor;
7-an auxiliary heat dissipation system, 701-an auxiliary heat dissipation water path, 702-a fifth temperature sensor, 703-an auxiliary heat sink, 704-a second circulating water pump, 705-a sixth temperature sensor, 706-a fourth flow meter, 707-a seventh temperature sensor, 708-an eighth temperature sensor; 8-an upper computer, 9-a working state display, 11-a hydrogen fuel cell engine system, an inlet of a 111-hydrogen gas path, an inlet of a 112-air gas path, an outlet of a 113-hydrogen gas path, an outlet of a 114-cooling liquid circulation heat dissipation loop and an outlet of a 115-air gas path.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Hydrogen fuel cell engine system 11 has energy conversion efficiency height, low energy consumption, and advantages such as pollution-free, hydrogenation are fast replace traditional electricity generation and traditional internal-combustion engine best choice, in order to test hydrogen fuel cell engine system body and assembly, the embodiment of the utility model provides a hydrogen fuel cell engine system test platform, please see fig. 1-2, include:
a hydrogen supply system 1, a gas supply system 2, a tail exhaust system 3, a main heat dissipation system 4 and an output system 6. The hydrogen supply system 1 is communicated with an inlet 111 of a hydrogen gas path of the hydrogen fuel cell engine system 11, the gas supply system 2 is communicated with an inlet 112 of an air path of the hydrogen fuel cell engine system 11, the exhaust system 3 comprises an air exhaust channel 301 and a hydrogen gas exhaust channel 302, the air exhaust channel 301 is communicated with an outlet 115 of the air path of the hydrogen fuel cell engine system 11, and the hydrogen gas exhaust channel 302 is communicated with an outlet 113 of the hydrogen gas path of the hydrogen fuel cell engine system 11. The primary heat rejection system 4 is in communication with an outlet 114 of the coolant circulation heat rejection loop of the hydrogen fuel cell engine system 11. The output system 6 is electrically connected to the output assembly of the hydrogen fuel cell engine system 11.
The key point of the utility model is that each system structure required for testing the hydrogen fuel cell engine system 11 is integrated to a test platform through pipeline connection, in the test process of the hydrogen fuel cell engine system 11, the test controller arranged in the test platform monitors and controls the hydrogen supply system 1 in real time, the gas supply system 2, the tail exhaust system 3, the working state of the main heat dissipation system 4 and the output system 6, the control method of the test controller is a common control method for technicians in the field, namely, the signals of all system positions are collected by the test controller to automatically monitor and control the parts and the test parameters involved in the test process, and the ideal hydrogen supply parameters, the gas supply parameters and other working parameters can be provided for the hydrogen fuel cell engine system 11 according to the monitoring result, thereby realizing the detection of the hydrogen fuel cell engine power system through the controllable working parameters to the hydrogen fuel cell engine system 11, Debugging, optimizing and product improving can also carry out test tests on the hydrogen fuel cell engine system 11 under various extreme environments to obtain the optimal working operation environment of the hydrogen fuel cell engine system 11.
Referring to fig. 1, in the present embodiment, a hydrogen supply system 1 includes: a hydrogen supply gas path 101, and a hydrogen storage bottle 102, a first pressure reducing valve 103, a first electromagnetic valve 104, an electric regulating valve 105 and an ejector 108 which are sequentially communicated with the hydrogen supply gas path 101. The output end of the hydrogen supply gas path 101 is communicated with the inlet 111 of the hydrogen gas path of the hydrogen fuel cell engine system 11, the hydrogen supply gas path 101 is further provided with a first pressure sensor 106, a first flow meter 107 and a second pressure sensor 109, the first pressure sensor 106 is positioned between the hydrogen storage bottle 102 and the first pressure reducing valve 103, the first flow meter 107 is positioned between the electric regulating valve 105 and the ejector 108, and the second pressure sensor 109 is positioned between the ejector 108 and the inlet 111 of the hydrogen gas path of the hydrogen fuel cell engine system 11.
The first pressure reducing valve 103, the first electromagnetic valve 104, the electric control valve 105, the ejector 108, the first pressure sensor 106, the first flowmeter 107 and the second pressure sensor 109 are electrically connected with the test controller respectively.
The embodiment of the utility model provides a through each spare part in test controller automatic monitoring and the control hydrogen supply system 1, specifically, under test controller's control, first pressure sensor 106 is used for detecting the pressure of hydrogen in hydrogen storage bottle 102 and feeds back the pressure value of hydrogen to test controller in real time, and test controller controls the supply that is used for the required hydrogen of hydrogen fuel cell engine system 11 and ends through controlling opening and shutting of first solenoid valve 104. The first flow meter 107 is used for detecting the flow of the hydrogen gas in the hydrogen supply gas path 101 and feeding back the detected gas flow value to the test controller in real time, then the test controller adjusts the electric regulating valve 105 according to the gas flow value detected by the first flow meter 107, and the flow of the hydrogen gas supplied by the hydrogen storage bottle 102 is adjusted through the electric regulating valve 105 so as to ensure the safe and reliable operation of the hydrogen fuel cell engine. The high-pressure low-speed hydrogen gas flowing through the hydrogen supply gas path 101 is injected into the low-pressure high-speed hydrogen gas through the flow passage in the injector 108, and the unreacted hydrogen in the hydrogen discharge passage 302 can be injected and utilized again, so that the hydrogen utilization rate and the system efficiency are improved. The second pressure sensor 109 is used for detecting the air inlet pressure of an inlet 111 of a hydrogen path of the hydrogen fuel cell engine system 11 in real time, and feeding the air inlet pressure back to the test controller, and the test controller adjusts the first pressure reducing valve 103 according to the air inlet pressure, so that the high-pressure hydrogen is reduced to be the low-pressure hydrogen required by the test of the hydrogen fuel cell engine system 11 through the first pressure reducing valve 103, and the system requirements are met.
The gas supply system 2 includes: the system comprises an air supply gas path 201, and an air compressor 203, an intercooler 204 and a membrane humidifier 205 which are sequentially communicated with the air supply gas path 201, wherein the air compressor 203 is electrically connected with an air compressor controller 2030, the output end of the air supply gas path 201 is communicated with an inlet 112 of an air path of the hydrogen fuel cell engine system 11, and the air supply gas path 201 is further provided with a second flowmeter 202, a third pressure sensor 206, a first temperature sensor 207 and a humidity sensor 208. The second flow meter 202 is located at the air inlet of the air compressor 203, the third pressure sensor 206 is located between the air compressor 203 and the intercooler 204, the first temperature sensor 207 is located between the intercooler 204 and the membrane humidifier 205, and the humidity sensor 208 is located between the membrane humidifier 205 and the inlet 112 of the air path of the hydrogen fuel cell engine system 11. The second flow meter 202, the air compressor controller 2030, the intercooler 204, the membrane humidifier 205, the third pressure sensor 206, the first temperature sensor 207 and the humidity sensor 208 are electrically connected to the test controller, so that under the monitoring and control of the test controller, the second flow meter 202 is used for detecting the air intake amount of the air inlet of the air compressor 203 and feeding back the air intake amount to the test controller in real time. The air compressor 203 is used for compressing air to increase the pressure of the air to the pressure required by the hydrogen fuel cell engine system 11, the third pressure sensor 206 is used for detecting the pressure of the air compressed by the air compressor 203 and feeding the pressure back to the test controller in real time, and the test controller adjusts the air compressor controller 2030 according to the pressure of the air detected by the third pressure sensor 206 so as to control the air compression processing of the air compressor 203, so that the pressure required by the hydrogen fuel cell engine system 11 is ensured. After the air is compressed by the air compressor 203, the heat generated during air compression is controlled within a required temperature range through a cooling liquid medium in the intercooler 204, and then the temperature of the air supply air path 201 is detected in real time through the first temperature sensor 207 and fed back to the test controller; the test controller controls the membrane humidifier 205 to increase the humidity of the air entering the fuel cell engine system 11 to ensure that the engine operates at a suitable humidity, and the humidity sensor 208 is used for detecting the humidity of the air at the inlet 112 of the air passage of the fuel cell engine system 11 in real time and feeding the detected humidity back to the test controller in real time.
Optionally, the air supply system 2 further comprises an air filter 209 for removing particulate impurities from the air, the air filter 209 is disposed at an air inlet of the air compressor 203 and in front of the second flowmeter 202, and the air filter 209 is electrically connected to the test controller. Thus, during the test of the hydrogen fuel cell engine system 11, the air is cleaned of particulate impurities by the air filter 209 to ensure the cleanliness of the gas required by the hydrogen fuel cell engine system 11.
The exhaust system 3 further includes a buffer block 303, the air discharge channel 301 and the hydrogen discharge channel 302 both open into the buffer block 303, the air discharge channel 301 is communicated with the membrane humidifier 205 on the air supply channel 201 through the outlet 115 of the air channel of the hydrogen fuel cell engine system 11, and the air discharge channel 301 is sequentially provided with a fourth pressure sensor 304 and a second electromagnetic valve 305. The hydrogen gas discharge passage 302 is provided with a fifth pressure sensor 306, a hydrogen water separator 307, and a third electromagnetic valve 308 in this order, and the hydrogen water separator 307 is also communicated with the injector 108. The fourth pressure sensor 304, the second solenoid valve 305, the fifth pressure sensor 306 and the third solenoid valve 308 are electrically connected to the test controller, respectively. The utility model discloses the air discharge passageway 301 and the hydrogen discharge passageway 302 of tail exhaust system 3 respectively with the gas discharge buffer block 303 of 11 air gas circuits of hydrogen fuel cell engine system and hydrogen gas circuit, through buffer block 303 with exhaust system behind the gaseous intensive mixing of combustion gas, assurance system safe and reliable operation. The fourth pressure sensor 304 detects the gas pressure at the outlet of the air path of the hydrogen fuel cell engine. The second electromagnetic valve 305 controls the air exhaust gas discharged from the air discharge channel 301, and adjusts the second electromagnetic valve 305 according to the air humidity detected by the humidity sensor 208 through the test controller to control the humidification amount of the membrane humidifier 205 on the air supply path 201; the fifth pressure sensor 306 is used for detecting the exhaust pressure of the outlet 113 of the hydrogen path of the hydrogen fuel cell engine system 11; the third electromagnetic valve 308 controls the hydrogen-water separator 307 under the control of the test controller to realize the discharge of water and hydrogen tail gas, the hydrogen-water separator 307 is used for separating hydrogen from water, and recycling unreacted hydrogen through the ejector 108 again, so that the utilization rate of hydrogen is improved, and water generated by the chemical reaction of the hydrogen fuel cell engine system 11 is discharged into the buffer block 303.
In the present embodiment, the main heat dissipation system 4 includes: the heat radiator comprises a main heat radiation water path 401, and a first circulating water pump 402, a third flow meter 403, a thermostat 404 and a main radiator 405 which are arranged on the main heat radiation water path 401 in sequence, wherein a heating channel 406 is arranged between a heating outlet of the thermostat 404 and an outlet of the main radiator 405, and a PTC heater 407 is arranged on the heating channel 406. The main heat dissipation water path 401 is further provided with a second temperature sensor 408, a third temperature sensor 409 and a fourth temperature sensor 410, the second temperature sensor 408 is located between the first circulating water pump 402 and the third flow meter 403, the third temperature sensor 409 is located between the thermostat 404 and the main heat sink 405, and the fourth temperature sensor 410 is located at an outlet of the main heat sink 405.
The first circulating water pump 402, the third flow meter 403, the thermostat 404, the main radiator 405, the PTC heater 407, the second temperature sensor 408, the third temperature sensor 409, and the fourth temperature sensor 410 are electrically connected to the test controller, respectively. The embodiment of the utility model provides a main heat dissipation system 4 is under test controller's control, and first circulating water pump 402 carries coolant liquid circulation work for main heat dissipation water route 401, and third flowmeter 403 is used for detecting the coolant liquid flow and feeds back to test controller in real time, controls first circulating water pump 402 through test controller and realizes the control of coolant liquid flow to control the heat dissipation capacity; the thermostat 404 plays a role in saving energy consumption, before the temperature of the system does not reach the normal working temperature, the port of the thermostat 404 communicated with the main radiating water path 401 is closed, so that the cooling liquid does not pass through the main radiator 405 but passes through the heating channel of the PTC heater 407, and the cooling liquid is heated by the PTC heater 407 in a low-temperature environment, so that the system can work in the low-temperature environment, and the temperature of the system meets the starting working temperature of the system; the main radiator 405 is used for heat exchange of the main radiating waterway 401 so as to cool the system; the second temperature sensor 408 is used to detect the temperature of the coolant at the outlet 114 of the coolant circulation heat dissipation loop of the hydrogen fuel cell engine system 11; the third temperature sensor 409 is used to detect the temperature of the coolant in the coolant circulation heat radiation loop of the hydrogen fuel cell engine system 11 when the coolant enters the main radiator 405, and the fourth temperature sensor 410 is used to detect the temperature of the coolant at the outlet of the main radiator 405.
The embodiment of the utility model provides a still include: the purging system 5, the purging system 5 includes a purging gas channel 501, and a nitrogen storage bottle 502, a fifth pressure sensor 503, a second reducing valve 504 and a fourth electromagnetic valve 505 which are sequentially arranged on the purging gas channel 501, and an outlet of the purging gas channel 501 is arranged on the hydrogen supply gas channel 101 and is located between the first electromagnetic valve 104 and the electric regulating valve 105. The fifth pressure sensor 503, the second pressure reducing valve 504 and the fourth solenoid valve 505 are electrically connected to the test controller, respectively. In the embodiment of the utility model, the nitrogen storage bottle 502 of the purging system 5 is used for storing nitrogen gas for purging the system before starting and after finishing, purging water in the stack of the hydrogen fuel cell engine system 11, and avoiding cathode corrosion damage of the hydrogen fuel cell engine caused by high voltage; the fifth pressure sensor 503 detects the pressure of the nitrogen in the nitrogen storage bottle 502 and feeds the pressure back to the test controller in real time; the second pressure reducing valve 504 is used for reducing the pressure of the high-pressure nitrogen flowing out of the nitrogen storage bottle 502 into required low-pressure nitrogen; the fourth electromagnetic valve 505 is used for controlling the supply and the cut-off of the purging nitrogen required by the hydrogen fuel cell engine.
The embodiment of the utility model provides an output system 6 includes: the system comprises a direct current voltage converter DC-DC601, a load 602, a storage battery 603, a first voltage sensor 604, a first current sensor 605, a second voltage sensor 606, a second current sensor 607, a third voltage sensor 608 and a third current sensor 609, wherein the load 602 is electrically connected with an output assembly of the hydrogen fuel cell engine system 11 through the direct current voltage converter DC-DC601, and the storage battery 603, the second voltage sensor 606 and the second current sensor 607 are respectively electrically connected with an input end of the load 602; the first voltage sensor 604 and the first current sensor 605 are electrically connected to the output assembly of the hydrogen fuel cell engine system 11; third voltage sensor 608 and third current sensor 609 are electrically connected to battery 603. And the direct-current voltage converter DC-DC601, the storage battery 603, the first voltage sensor 604, the first current sensor 605, the second voltage sensor 606, the second current sensor 607, the third voltage sensor 608 and the third current sensor 609 are respectively electrically connected with the test controller. The embodiment of the present invention absorbs the power of the hydrogen fuel cell engine system 11 through the load 602 of the loading output system 6, that is, the current generated by the hydrogen fuel cell engine is consumed through the load 602, and the dynamic response of the performance of the hydrogen fuel cell engine system 11 can be realized according to the regulation and control of the load 602, wherein the second voltage sensor 606 is used for detecting the input voltage of the load 602 end in real time, and the second current sensor 607 is used for detecting the input current of the load 602 end in real time; the direct-current voltage converter DC-DC601 is used for converting the output assembly voltage of the hydrogen fuel cell engine system 11 into the voltage required by the system load 602 to realize the voltage transformation function; the battery 603 is used for storing electric quantity and providing voltage stabilization and energy supplement and storage for the hydrogen fuel cell engine system 11 when voltage and power fluctuation occurs in reaction, the third voltage sensor 608 is used for detecting the output and input voltage of the battery 603 in real time, and the third current sensor 609 is used for detecting the output and input current of the battery 603 in real time; the first voltage sensor 604 is used for detecting the output assembly voltage of the hydrogen fuel cell engine system 11 in real time, and the first current sensor 605 is used for detecting the output assembly current of the hydrogen fuel cell engine system 11 in real time, so that the power of the hydrogen fuel cell engine can be measured by the test controller according to the voltage detected by the first voltage sensor and the current detected by the first current sensor.
The utility model discloses test platform satisfies the power test in each stage, convenient operation, and data processing is quick, can be through the operating condition of test controller short-term test each spare part to pressure, velocity of flow, flow through controllable operating temperature, controllable reaction gas, add proper amount and realize detection, debugging, optimization and the improvement of product to hydrogen fuel cell engine power system 11. The test platform can realize the test of the hydrogen fuel cell engine power system 11 in various extreme environments and realize the dynamic response of the system performance according to the regulation and control of the load 602.
Optionally, the embodiment of the present invention further includes: the auxiliary heat dissipation system 7 includes an auxiliary heat dissipation water path 701, a fifth temperature sensor 702, an auxiliary heat sink 703, a second water circulation pump 704, a sixth temperature sensor 705, a fourth flow meter 706, a seventh temperature sensor 707, and an eighth temperature sensor 708. One end of the auxiliary heat dissipation water channel 701 is communicated with an outlet of the DC-DC601 of the DC voltage converter, and the other end is communicated with the air compressor 203; a fifth temperature sensor 702, an auxiliary radiator 703, a second circulation water pump 704, a sixth temperature sensor 705, and a fourth flow meter 706 are sequentially provided on the auxiliary heat radiation water passage 701. A seventh temperature sensor 707 is provided at the outlet of the air compressor controller 2030, and an eighth temperature sensor 708 is provided at the outlet of the intercooler 204. The fifth temperature sensor 702, the auxiliary radiator 703, the second water circulation pump 704, the sixth temperature sensor 705, the fourth flow meter 706, the seventh temperature sensor 707, and the eighth temperature sensor 708 are electrically connected to the test controller, respectively. The auxiliary heat dissipation system 7 of the embodiment of the present invention performs auxiliary heat dissipation on the test platform under the control of the test controller, wherein the second circulating water pump 704 delivers the cooling liquid for the auxiliary heat dissipation water path 701, and the sixth temperature sensor 705 is used for detecting the temperature of the cooling liquid at the outlet of the DC-DC601 of the DC voltage converter; the auxiliary radiator 703 is used for exchanging heat so as to cool down the parts such as the air compressor controller 2030 on the auxiliary heat dissipation waterway 701, and the fifth temperature sensor 702 is used for detecting the temperature of the coolant at the outlet of the auxiliary radiator 703; the fourth flow meter 706 is used for detecting the flow rate of the coolant in the auxiliary heat dissipation water channel 701 and feeding the flow rate back to the test controller, and the test controller controls the flow rate of the coolant by controlling the second circulating water pump 704 so as to adjust the heat dissipation capacity; the seventh temperature sensor 707 detects the temperature of the cooling liquid at the outlet of the air compressor controller 2030, and the eighth temperature sensor 708 detects the temperature of the cooling liquid at the outlet of the intercooler 204.
Optionally, the embodiment of the utility model provides a still include host computer 8 and the operating condition display 9 that is connected with the test controller electricity respectively. The working state of each system is displayed on the working state display 9 after the signals of the positions of each system are collected by the test controller, and the upper computer 8 adjusts and controls the parameters of each system part, so that the optimal working operation environment of the hydrogen fuel cell engine system is obtained.
The utility model discloses hydrogen fuel cell engine system test platform can provide ideal air feed pressure, flow, temperature and humidity for hydrogen fuel cell engine system 11 to load through loading load 602 comes absorbed power. The signal data of each system position is collected through the test controller, the collected signal data are analyzed to obtain the optimal working state of the hydrogen fuel cell engine system 11, and the upper computer 8 adjusts and controls parameters of each part, so that the optimal working operation environment of the hydrogen fuel cell engine system 11 is obtained.
Fig. 2 is a flowchart of a test performed by the test platform on the hydrogen fuel cell engine system 11 in an actual test situation, when the experiment starts, all parts of the test platform are determined to be normal through manual inspection and platform self-inspection, and all valves are in a closed state; firstly, starting a gas supply system 2 and a nitrogen purging process (namely a purging system 5), and opening a tail exhaust gas valve (a third electromagnetic valve 308) and a tail exhaust air valve (a second electromagnetic valve 305); secondly, starting the auxiliary heat dissipation system 7, the main heat dissipation system 4, the hydrogen supply system 1 and the hydrogen-water separator 307; thirdly, detecting and debugging the hydrogen fuel cell engine system 11, and loading a load 602; the fourth step, close the gas supply system 2, the tail gas exhaust valve (the second electromagnetic valve 305) and the hydrogen supply system 1; step five, closing the auxiliary heat dissipation system 7 and the main heat dissipation system 4, and starting the purging system 5 to start a nitrogen purging process; sixthly, closing the tail hydrogen exhaust valve (third electromagnetic valve 308) and the hydrogen-water separator 307; and seventhly, determining that all parts of the test platform are normal by manual inspection and platform self-inspection together, and enabling all valves to be in a closed state. The testing process of the hydrogen fuel cell engine system 11 is completed through the seven steps, through the testing process, the testing platform can test the system efficiency of the hydrogen fuel cell engine under various working conditions, the voltage and the current of the hydrogen fuel cell engine stack, the voltage, the current, the gas consumption, the power consumed by each system and the like are mastered in real time through the testing controller, the heat dissipation power of the main heat dissipation system and the auxiliary heat dissipation system can be monitored in real time, the working parameters such as the inlet temperature, the outlet temperature and the cooling water flow of the cooling liquid can be measured in real time, the cold start time, the hot start time, the step response time and the like can be set through the upper computer 8, and the dynamic response performance test, the steady state working condition test and the like can be carried out on the hydrogen fuel cell engine system 11 through the control of the testing controller.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (9)
1. A hydrogen fuel cell engine system test platform, comprising:
the system comprises a hydrogen supply system, a gas supply system, a tail exhaust system, a main heat dissipation system and an output system;
the hydrogen supply system is communicated with an inlet of a hydrogen gas path of the hydrogen fuel cell engine system; the gas supply system is communicated with an inlet of an air path of the hydrogen fuel cell engine system; the tail gas exhaust system comprises an air exhaust channel and a hydrogen exhaust channel, the air exhaust channel is communicated with an outlet of an air path of the hydrogen fuel cell engine system, and the hydrogen exhaust channel is communicated with an outlet of a hydrogen path of the hydrogen fuel cell engine system; the main heat dissipation system is communicated with an outlet of the hydrogen fuel cell engine system cooling liquid circulating heat dissipation loop; the output system is electrically connected with an output assembly of the hydrogen fuel cell engine system.
2. The hydrogen fuel cell engine system test platform of claim 1, wherein the hydrogen supply system comprises:
the hydrogen supply gas path, and a hydrogen storage bottle, a first pressure reducing valve, a first electromagnetic valve, an electric regulating valve and an ejector which are sequentially communicated with each other through the hydrogen supply gas path;
the output end of the hydrogen supply gas path is communicated with the inlet of the hydrogen path of the hydrogen fuel cell engine system, and the hydrogen supply gas path is also provided with a first pressure sensor, a first flowmeter and a second pressure sensor; the first pressure sensor is positioned between the hydrogen storage bottle and the first pressure reducing valve, the first flow meter is positioned between the electric regulating valve and the ejector, and the second pressure sensor is positioned between the ejector and an inlet of a hydrogen gas path of the hydrogen fuel cell engine system.
3. The hydrogen fuel cell engine system test platform of claim 2, wherein the gas supply system comprises:
the air supply system comprises an air supply gas path, and an air compressor, an intercooler and a membrane humidifier which are sequentially communicated with the air supply gas path, wherein the air compressor is electrically connected with an air compressor controller; the output end of the gas supply path is communicated with the inlet of the air path of the hydrogen fuel cell engine system, and the gas supply path is also provided with a second flowmeter, a third pressure sensor, a first temperature sensor and a humidity sensor;
the second flowmeter is positioned at an air inlet of the air compressor, the third pressure sensor is positioned between the air compressor and the intercooler, the first temperature sensor is positioned between the intercooler and the membrane humidifier, and the humidity sensor is positioned between the membrane humidifier and an inlet of an air path of the hydrogen fuel cell engine system;
the output system includes: the system comprises a direct current voltage converter DC-DC, a load, a storage battery, a first voltage sensor, a first current sensor, a second voltage sensor, a second current sensor, a third voltage sensor and a third current sensor, wherein the load is electrically connected with an output assembly of the hydrogen fuel cell engine system through the direct current voltage converter DC-DC, and the storage battery, the second voltage sensor and the second current sensor are respectively and electrically connected with an input end of the load; the first voltage sensor and the first current sensor are electrically connected with an output assembly of the hydrogen fuel cell engine system; the third voltage sensor and the third current sensor are electrically connected to the battery.
4. The hydrogen fuel cell engine system test platform of claim 3, wherein the exhaust system further comprises a buffer block into which the air exhaust channel and the hydrogen exhaust channel both open;
the air discharge channel is communicated with the membrane humidifier on the air supply path through an outlet of an air path of the hydrogen fuel cell engine system, and the air discharge channel is sequentially provided with a fourth pressure sensor and a second electromagnetic valve;
the hydrogen discharge passage is provided with a fifth pressure sensor, a hydrogen water separator and a third electromagnetic valve in sequence, and the hydrogen water separator is communicated with the ejector.
5. The hydrogen fuel cell engine system test platform of claim 1, wherein the primary heat dissipation system comprises: the heat radiator comprises a main heat radiation waterway, and a first circulating water pump, a third flow meter, a thermostat and a main heat radiator which are sequentially arranged on the main heat radiation waterway, wherein a heating channel is arranged between a heating outlet of the thermostat and an outlet of the main heat radiator, and a PTC heater is arranged on the heating channel;
and a second temperature sensor, a third temperature sensor and a fourth temperature sensor are further arranged on the main heat-radiating water path, the second temperature sensor is positioned between the first circulating water pump and the third flow meter, the third temperature sensor is positioned between the thermostat and the main heat radiator, and the fourth temperature sensor is positioned at an outlet of the main heat radiator.
6. The hydrogen fuel cell engine system test platform of claim 2, further comprising:
and the purging system comprises a purging gas channel, a nitrogen storage bottle, a fifth pressure sensor, a second pressure reducing valve and a fourth electromagnetic valve which are sequentially arranged on the purging gas channel, and an outlet of the purging gas channel is arranged on the hydrogen supply path and is positioned between the first electromagnetic valve and the electric regulating valve.
7. The hydrogen fuel cell engine system test platform of claim 3, further comprising:
the auxiliary heat dissipation system comprises an auxiliary heat dissipation water path, a fifth temperature sensor, an auxiliary radiator, a second circulating water pump, a sixth temperature sensor, a fourth flowmeter, a seventh temperature sensor and an eighth temperature sensor;
one end of the auxiliary heat dissipation water path is communicated with an outlet of the DC-DC converter, and the other end of the auxiliary heat dissipation water path is communicated with the air compressor; the fifth temperature sensor, the auxiliary radiator, the second circulating water pump, the sixth temperature sensor and the fourth flowmeter are sequentially arranged on the auxiliary heat dissipation water path;
the seventh temperature sensor is arranged at the outlet of the air compressor controller; the eighth temperature sensor is arranged at an outlet of the intercooler.
8. The hydrogen fuel cell engine system test platform of claim 3, wherein the air supply system further comprises an air filter for removing particulate impurities from the air, the air filter being disposed at an air inlet of the air compressor and before the second flow meter.
9. The hydrogen fuel cell engine system test platform of claim 1, further comprising: host computer and operating condition display.
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Effective date of registration: 20220906 Address after: Room D607, Laiwu Enlightenment Star Technology Incubator Co., Ltd., No. 46, Wenhua North Road, Laiwu District, Jinan City, Shandong Province, 271100 Patentee after: Shandong Jiran hydrogen power Co.,Ltd. Address before: 250022 room 1811, building 1, Ginza City Plaza, No. 8, Wenhua South Road, Laiwu District, Jinan City, Shandong Province Patentee before: Jinan hydrogen fuel energy technology Co.,Ltd. |