Thermal management system for liquid hydrogen refueling station

Abstract

The invention discloses a thermal management system for a liquid hydrogen refueling station. The liquid hydrogen refueling station comprises a liquid hydrogen storage tank. The thermal management system comprises an evaporation tank, an integrated heat exchanger, a clean energy thermal energy supply device and a pressure regulator; the evaporation tank is connected to the liquid hydrogen storage tank and is used for storing gaseous hydrogen leaking from the liquid hydrogen storage tank; the integrated heat exchanger exchanges heat with the liquid hydrogen storage tank, so that liquid hydrogenin the liquid hydrogen storage tank is converted into the gaseous hydrogen; the clean energy thermal energy supply device is connected to the integrated heat exchanger so as to provide thermal energyfor the integrated heat exchanger; and the pressure regulator is connected to the evaporation tank and the integrated heat exchanger and is used for pressurizing the gaseous hydrogen. According to thethermal management system, thermal energy for heat exchange is provided for the integrated heat exchanger through the clean energy thermal energy supply device, the liquid hydrogen is converted intothe gaseous hydrogen, then the gaseous hydrogen is injected, and therefore the use of traditional energy is reduced, the utilization rate of renewable energy and clean energy is increased, and the liquid hydrogen is efficiently converted into the clean gaseous hydrogen.

Description

technical field [0001] The invention belongs to the field of hydrogen energy new energy vehicles, and more specifically relates to a thermal management system of a liquid hydrogen refueling station. Background technique [0002] With the increasing public awareness of environmental protection, new energy vehicles have been widely promoted, especially hydrogen energy is considered to be one of the most promising secondary energy sources, and hydrogen energy fuel vehicles are favored by the majority of users. Hydrogen refueling stations for energy supply have also been widely promoted and applied. [0003] Liquid hydrogen refueling stations can achieve more efficient hydrogen storage efficiency, but liquid hydrogen requires some necessary devices or measures during storage and use to ensure its safe and efficient use. [0004] Among them, when liquid hydrogen is converted into gaseous hydrogen to refuel vehicles, it needs to absorb a large amount of external heat. If the liqu...

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Problems solved by technology

[0004] Among them, when liquid hydrogen is converted into gaseous hydrogen to refuel vehicles, it needs to absorb a large amount of external heat. If the liquid hydrogen hydrogenation system does not perform the necessary heat interaction treatment, it will cause the pipeline of the liquid hydrogen hydrogenation system to freeze and block and so on

The external heating method of traditional energy sources (such as electric heating) is used to heat liquid hydrogen, and the heat required to satisfy the conversion of liquid hydrogen into a gaseous state is very large, which will cause additional energy consumption.

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