Cabin heat dissipation device suitable for hydrogen fuel cell stack engine system

Abstract

The utility model discloses an in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system. The in-cabin heat dissipation device comprises a shell, an environmental chamber is arranged in the shell, a heat exchange air duct is arranged above the environmental chamber, an outlet of the heat exchange air duct faces downwards, and the heat exchange air duct is provided with a plurality of fans which blow air downwards; a hydrogen fuel cell stack engine system and an ethylene glycol cooling system connected with the hydrogen fuel cell stack engine system are arranged in the environmental chamber, and the ethylene glycol cooling system comprises an air-cooled condenser; and two ports of the air-cooled condenser are respectively connected with an ethylene glycol liquid outlet and an ethylene glycol liquid inlet of the hydrogen fuel cell stack engine system through an ethylene glycol outlet pipe and an ethylene glycol inlet pipe. According to the device disclosed by the utility model, the heat dissipation effect of a hydrogen fuel cell stack engine system can be greatly improved by utilizing the cooperation of the environmental cabin and the ethylene glycol cooling system, heat dissipation in all thermal power cabins can be realized, the temperature, pressure and flow of an ethylene glycol solution can be controlled, and the application prospect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fuel cell stack engine testing, and relates to an in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. Its basic principle is the reverse reaction of water electrolysis, supplying hydrogen and oxygen to the anode and cathode respectively. After hydrogen diffuses outward through the anode and reacts with the electrolyte, it releases electrons to reach the cathode through an external load. The hydrogen fuel engine system uses the electricity generated by the hydrogen fuel cell to power the engine system. Its process does not involve combustion, has high energy conversion rate and low noise, and has safe, environmentally friendly and pollution-free emissions. It has received widespread attention and recognition from domestic and foreign automobile manufacturers and researchers. However, as the core component of hydrogen fuel new energy vehicles, the hydrogen fuel engine system must involve various environmental simulation tests to meet the reliability, stability, safety and other tests of hydrogen fuel engines under different environmental conditions. The fuel cell engine performance test is carried out in accordance with the requirements of GBT24554-2022 fuel cell engine performance test method. When the fuel cell engine is in full power operation, the heat dissipation requirements of the fuel cell engine are high, and the current fuel cell engine system heat dissipation device can hardly meet the use requirements.

[0003] Therefore, it is of great practical significance to develop a heat dissipation device suitable for a hydrogen fuel cell stack engine system. Utility Model Content

[0004] Due to the above-mentioned defects in the prior art, the utility model provides a heat dissipation device suitable for a hydrogen fuel cell stack engine system, specifically an in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system, so as to solve the problem that the heat dissipation performance of the heat dissipation device of the current hydrogen fuel cell stack engine system is difficult to meet the use requirements.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system comprises a housing;

[0007] An environmental chamber is provided in the shell, a heat exchange air duct is provided above the environmental chamber and the outlet of the heat exchange air duct faces downward, and a plurality of fans are provided in the heat exchange air duct and the fans discharge air downward;

[0008] The environmental chamber is provided with a hydrogen fuel cell stack engine system and an ethylene glycol cooling system connected to the hydrogen fuel cell stack engine system. The ethylene glycol cooling system includes an air-cooled condenser. Two ports of the air-cooled condenser are respectively connected to the ethylene glycol liquid outlet and the ethylene glycol liquid inlet of the hydrogen fuel cell stack engine system through an ethylene glycol outlet pipe and an ethylene glycol inlet pipe. Both the ethylene glycol outlet pipe and the ethylene glycol inlet pipe are made of 316L stainless steel pipes, which have good pressure resistance and corrosion resistance.

[0009] The utility model is suitable for the in-cabin heat dissipation device of the hydrogen fuel cell stack engine system. It is a device specifically for the high-power in-cabin heat dissipation of the hydrogen fuel cell stack engine system and controls the temperature, pressure and flow. The above-mentioned environmental chamber is a special hydrogen-related environment simulation test chamber. The main cold source comes from the environmental chamber. The air-cooled condenser and the ethylene glycol solution are used for heat exchange to achieve the in-cabin heat dissipation of the hydrogen fuel cell stack engine system. The environmental chamber and the ethylene glycol cooling system can work together to greatly improve the heat dissipation effect of the hydrogen fuel cell stack engine system, and the application prospect is good.

[0010] As the preferred technical solution:

[0011] In the above-mentioned in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system, an environmental cabin door is installed on the side of the environmental cabin.

[0012] As described above, in the in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system, the ethylene glycol inlet pipe is equipped with a condenser outlet proportional valve, a condenser outlet temperature sensor, a condenser outlet flow sensor and a condenser outlet pressure sensor.

[0013] The above-mentioned in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system, wherein the ethylene glycol inlet pipe is also provided with an inlet regulating valve;

[0014] The condenser outlet proportional valve, the condenser outlet temperature sensor, the condenser outlet flow sensor, the condenser outlet pressure sensor and the stack inlet regulating valve are installed in sequence along the flow direction of the ethylene glycol solution.

[0015] In the cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system as described above, the ethylene glycol outlet pipe is provided with a condenser inlet proportional valve, a condenser inlet temperature sensor and a condenser inlet pressure sensor.

[0016] The above-mentioned in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system, wherein the ethylene glycol outlet pipe is also provided with an outlet regulating valve;

[0017] The stack outlet regulating valve, the condenser inlet pressure sensor, the condenser inlet temperature sensor and the condenser inlet proportional valve are installed in sequence along the flow direction of the ethylene glycol solution.

[0018] The above-mentioned in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system, wherein a central control panel is installed on the shell;

[0019] The central control panel is electrically connected to the fan, the condenser outlet proportional valve, the condenser outlet temperature sensor, the condenser outlet flow sensor, the condenser outlet pressure sensor, the stack entry regulating valve, the stack exit regulating valve, the condenser inlet pressure sensor, the condenser inlet temperature sensor and the condenser inlet proportional valve.

[0020] The central control panel is equipped with existing mature PID control software to adjust the flow and pressure of the ethylene glycol solution under the premise of constant temperature. The specific SIMATIC S-1200 series safety PLC can be selected. The control system of this project is developed based on the TIA portal V17 software platform. The central control panel is equipped with a local area network and a server at the remote end, which can realize wired signal transmission and wireless signal transmission, and realizes multi-platform operation of Android and window systems and long-term retention of historical experimental data. The central control panel reserves communication protocols such as CAN bus, modbus TCP, PROFINET, modbus RS-485, and realizes data docking and alarm linkage with the fuel cell stack test bench.

[0021] The above technical solution is only a feasible technical solution of the present utility model, and the protection scope of the present utility model is not limited thereto. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0022] Compared with the prior art, the above utility model has the following advantages or beneficial effects:

[0023] The utility model is suitable for the in-cabin heat dissipation device of the hydrogen fuel cell stack engine system. The heat dissipation effect of the hydrogen fuel cell stack engine system can be greatly improved by utilizing the cooperation of the environmental chamber and the ethylene glycol cooling system. The main cold source comes from the environmental chamber. The air-cooled condenser and the ethylene glycol solution are used for heat exchange to realize the in-cabin heat dissipation of the hydrogen fuel cell stack engine system. Not only can the in-cabin heat dissipation of all thermal power be realized, but also the temperature, pressure and flow rate of the ethylene glycol solution can be controlled. The low-temperature test of the hydrogen fuel cell stack can improve the test stability and the reliability of the test results, and the application prospect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on illustrating the subject matter of the present invention.

[0025] Figure 1 It is a schematic structural diagram of an in-cabin heat dissipation device applicable to a hydrogen fuel cell stack engine system of the utility model;

[0026] Among them, 1-central control panel; 2-environmental cabin; 3-heat exchange air duct; 4-fan; 5-condenser outlet proportional valve; 6-condenser outlet temperature sensor; 7-condenser outlet flow sensor; 8-condenser outlet pressure sensor; 9-stack inlet regulating valve; 10-condenser inlet proportional valve; 11-condenser inlet temperature sensor; 12-condenser inlet pressure sensor; 13-stack outlet regulating valve; 14-air-cooled condenser. DETAILED DESCRIPTION

[0027] The structure of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0028] Example 1

[0029] An in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system, such as Figure 1 As shown, it includes a housing;

[0030] An environmental chamber 2 is provided in the shell, a heat exchange air duct 3 is installed on the upper part of the environmental chamber 2 and the outlet of the heat exchange air duct 3 faces downward, a plurality of fans 4 are installed in the heat exchange air duct 3 and the fans 4 blow air downward, and an environmental chamber door is installed on the side of the environmental chamber 2;

[0031] A hydrogen fuel cell stack engine system and an ethylene glycol cooling system connected to the hydrogen fuel cell stack engine system are arranged in the environmental chamber 2. The ethylene glycol cooling system includes an air-cooled condenser 14. The two ports of the air-cooled condenser 14 are respectively connected to the ethylene glycol liquid outlet and the ethylene glycol liquid inlet of the hydrogen fuel cell stack engine system through an ethylene glycol outlet pipe and an ethylene glycol inlet pipe. A condenser outlet proportional valve 5, a condenser outlet temperature sensor 6, a condenser outlet flow sensor 7, a condenser outlet pressure sensor 8 and an inlet regulating valve 9 are installed on the ethylene glycol inlet pipe. The condenser outlet proportional valve 5, the condenser outlet temperature sensor 6, the condenser outlet flow sensor 7, the condenser outlet pressure sensor 8 and the inlet regulating valve 9 are installed in sequence along the flow direction of the ethylene glycol solution. The ethylene glycol outlet pipe is equipped with a condenser inlet proportional valve 10, a condenser inlet temperature sensor 11, a condenser inlet pressure sensor 12 and an outlet regulating valve 13. The outlet regulating valve 13, the condenser inlet pressure sensor 12, the condenser inlet temperature sensor 11 and the condenser inlet proportional valve 10 are installed in sequence along the flow direction of the ethylene glycol solution.

[0032] A central control panel 1 is mounted on the housing;

[0033] The central control panel 1 is electrically connected to the fan 4, the condenser outlet proportional valve 5, the condenser outlet temperature sensor 6, the condenser outlet flow sensor 7, the condenser outlet pressure sensor 8, the stack inlet regulating valve 9, the stack outlet regulating valve 13, the condenser inlet pressure sensor 12, the condenser inlet temperature sensor 11 and the condenser inlet proportional valve 10.

[0034] In summary, the present application provides an in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system. The heat dissipation effect of the hydrogen fuel cell stack engine system can be greatly improved by utilizing the cooperation of an environmental chamber and an ethylene glycol cooling system. The main cold source comes from the environmental chamber, and an air-cooled condenser is used for heat exchange with an ethylene glycol solution to achieve in-cabin heat dissipation of the hydrogen fuel cell stack engine system. Not only can the in-cabin heat dissipation of all thermal power be achieved, but the temperature, pressure and flow rate of the ethylene glycol solution can also be controlled. This can improve the stability of the test and the reliability of the test results for low-temperature testing of hydrogen fuel cell stacks, and has good application prospects.

[0035] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present utility model, and will not be described in detail here.

[0036] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. An in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system, characterized in that: including a housing; An environmental chamber is provided in the shell, a heat exchange air duct is provided above the environmental chamber and the outlet of the heat exchange air duct faces downward, and a plurality of fans are provided in the heat exchange air duct and the fans discharge air downward; A hydrogen fuel cell stack engine system and an ethylene glycol cooling system connected to the hydrogen fuel cell stack engine system are arranged in the environmental chamber. The ethylene glycol cooling system includes an air-cooled condenser. Two ports of the air-cooled condenser are respectively connected to the ethylene glycol outlet and the ethylene glycol inlet of the hydrogen fuel cell stack engine system through an ethylene glycol outlet pipe and an ethylene glycol inlet pipe.

2. The in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system according to claim 1, characterized in that: An environmental chamber door is arranged on the side of the environmental chamber.

3. The in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system according to claim 1, characterized in that: The ethylene glycol inlet pipe is provided with a condenser outlet proportional valve, a condenser outlet temperature sensor, a condenser outlet flow sensor and a condenser outlet pressure sensor.

4. The in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system according to claim 3, characterized in that: The ethylene glycol inlet pipe is also provided with a stack regulating valve; The condenser outlet proportional valve, the condenser outlet temperature sensor, the condenser outlet flow sensor, the condenser outlet pressure sensor and the stack inlet regulating valve are installed in sequence along the flow direction of the ethylene glycol solution.

5. The in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system according to claim 4, characterized in that: The ethylene glycol outlet pipe is equipped with a condenser inlet proportional valve, a condenser inlet temperature sensor and a condenser inlet pressure sensor.

6. The in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system according to claim 5, characterized in that: The ethylene glycol outlet pipe is also provided with an outlet regulating valve; The stack outlet regulating valve, the condenser inlet pressure sensor, the condenser inlet temperature sensor and the condenser inlet proportional valve are installed in sequence along the flow direction of the ethylene glycol solution.

7. The in-cabin heat dissipation device suitable for a hydrogen fuel cell stack engine system according to claim 6, characterized in that: A central control panel is mounted on the housing; The central control panel is electrically connected to the fan, the condenser outlet proportional valve, the condenser outlet temperature sensor, the condenser outlet flow sensor, the condenser outlet pressure sensor, the stack entry regulating valve, the stack exit regulating valve, the condenser inlet pressure sensor, the condenser inlet temperature sensor and the condenser inlet proportional valve.

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