A hydrogen refrigeration system for a pulse tube refrigerator and a fuel cell vehicle
A pulse tube refrigerator and fuel cell technology, which is applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problem of insufficient cooling capacity of pulse tube refrigerators, so as to improve the cooling effect, reduce the volume, and reduce energy consumption. Effect
Active Publication Date: 2021-11-19
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology
[0004] However, the cooling capacity of existing pulse tube refrigerators is not large enough, and there are still many deficiencies in applying them to automotive systems.
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[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described below.
[0028] Such as figure 1 As shown, the present invention proposes a pulse tube refrigerator, including a first-stage pulse tube, a second-stage pulse tube, and a third-stage pulse tube; the exhaust port of the first-stage pulse tube and the inlet of the second-stage pulse tube The exhaust port of the second-stage pulse tube is connected with the air inlet of the third-stage pulse tube;
[0029] The first-stage vessel, the second-stage vessel, and the third-stage vessel each include at least one vascular component.
[0030] In this embodiment, the pulse tube assembly includes a regenerator 1, a cold end heat exchanger 2, a deflector 3, a pulse tube 4, and a hot end heat exchanger 5; the hydrogen gas first enters the regenerator 1 of the pulse tube refrigerator After being cooled, it enters th...
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The present invention proposes a pulse tube refrigerator and a hydrogen supply refrigeration system for a fuel cell vehicle. The pulse tube refrigerator of the present invention includes three-stage pulse tubes, which can obtain greater cooling capacity; however, as the number of pulse tube stages increases, The pressure of the working gas in the pulse tube will be significantly reduced, and the cooling capacity of the pulse tube will be affected due to the large volume of the pulse tube; The situation of parallel connection reduces the volume of a single pulse tube and further improves the cooling effect. The hydrogen supply refrigeration system of the fuel cell vehicle of the present invention passes high-pressure hydrogen into the pulse tube refrigerator before reducing the pressure by adding the pulse tube refrigerator, and effectively utilizes this part of high-quality energy to provide additional energy for the fuel cell vehicle. The cooling capacity can reduce the energy consumption of the automobile air conditioning system to a certain extent, and achieve the purpose of energy saving of the whole vehicle.
Description
technical field [0001] The invention relates to the technical field of automobile energy, in particular to a pulse tube refrigerator and a hydrogen supply refrigeration system for a fuel cell automobile. Background technique [0002] In recent years, with the intensification of the global greenhouse effect, countries have begun to vigorously limit the emission of greenhouse gases. Hydrogen fuel cell vehicles, as the most promising new energy and environment-friendly vehicles in the 21st century, have entered the stage of initial commercial application in the world. Fuel cell vehicles use hydrogen as fuel. Two high-pressure hydrogen storage bottles are usually installed on the vehicle to store hydrogen. The hydrogen needs to be depressurized by a pressure-reducing valve before entering the fuel cell through the hydrogen supply pipeline. The pressure of this part of hydrogen cannot be effectively utilized. , resulting in a waste of energy. [0003] The pulse tube refrigerato...
Claims
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IPC IPC(8): F25B9/14F25B49/00
CPCF25B9/145F25B49/00
Inventor 祁影霞刘雅丽秦洲远
Owner UNIV OF SHANGHAI FOR SCI & TECH