Fuel cell heavy truck liquid hydrogen vaporization auxiliary device and control method
A fuel cell and auxiliary control technology, which is applied to fuel cell additives, fuel cells, and fuel cell heat exchange, can solve problems such as reduced heat exchange efficiency, low heat exchange efficiency, and frosting on the surface of heat exchange plates, and achieves improved Heat exchange efficiency, effect of reducing energy consumption
Pending Publication Date: 2022-05-27
BEIJING SINOHYTEC
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[0005] The invention provides a fuel cell heavy truck liquid hydrogen vaporization auxiliary device and a control method, which can solve the technical problems that the above method will cause frost on the surface of the heat exchange plate, reduce its heat exchange efficiency, and in addition, its heat exchange efficiency is low at low temperature
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[0053] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although 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 by 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.
[0054] As used herein, the term "including" and variations thereof mean open-ended inclusion, ie, "including but not limited to". The term "or" means "and / or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment." The term "another embodiment" means "at least one additional embodiment." The terms "first", "second", etc. may r...
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The invention provides a fuel cell heavy truck liquid hydrogen vaporization auxiliary device and a control method, and belongs to the technical field of fuel cells, the fuel cell heavy truck liquid hydrogen vaporization auxiliary device comprises a fuel cell comprising at least one group of fuel cells; the hydrogen storage system is connected with the fuel cell; the waste heat recovery system comprises a multi-stage waste heat recovery pipeline and a water distribution piece, the water distribution piece is connected with the fuel cell through one end of the multi-stage waste heat recovery pipeline, and the other end of the water distribution piece is connected with the hydrogen storage system; the control part is used for controlling the waste heat recovery system to heat the hydrogen storage system through the recovered waste heat according to the hydrogen demand of the fuel cell; the method comprises the following steps: acquiring hydrogen demand of a fuel cell stack; obtaining the final temperature at which the hydrogen is converted into gaseous hydrogen from liquid hydrogen; and controlling the waste heat recovery system to heat the hydrogen storage system according to the hydrogen demand of the fuel cell stack and the final temperature. The waste heat generated by the fuel cell is used for heating the hydrogen storage system, so that the heat exchange efficiency of the hydrogen storage system can be improved, and the energy consumption in liquid hydrogen vaporization is reduced.
Description
technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to an auxiliary device for liquid hydrogen vaporization of a fuel cell heavy truck and a control method. Background technique [0002] In the traditional liquid hydrogen storage and supply system for hydrogen powered vehicles, the liquid hydrogen flows out from the liquid hydrogen storage tank. After being evaporated and gasified by the vaporizer, it is stabilized by the pressure regulating valve, and finally sent to the fuel cell to supply hydrogen. In this process, the liquid hydrogen cannot guarantee complete vaporization of all the liquid hydrogen through the vaporizer, and the unvaporized part is recycled to the liquid hydrogen storage tank, and the hydrogen is supplied after secondary vaporization and vaporization. The fuel cell engine continues to expand with the application scenarios. The demand for fuel cell power is also increasing. When fuel cell engines a...
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Login to View More IPC IPC(8): H01M8/0606H01M8/04007H01M8/0662
CPCH01M8/0606H01M8/04007H01M8/0662Y02E60/50
Inventor 方川李文文李飞强张国强
Owner BEIJING SINOHYTEC