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Hydrogen circulating system and vehicle

A circulating system, hydrogen technology, applied in electrical components, fuel cells, electrochemical generators, etc., can solve the problems of high energy consumption and high cost of gas supply components

Pending Publication Date: 2022-08-09
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrogen circulation system uses two gas supply components and two expanders, which are expensive, and the gas supply components need to consume more power to recover the hydrogen discharged from the fuel cell system, and the energy consumption of the gas supply components is high.

Method used

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  • Hydrogen circulating system and vehicle
  • Hydrogen circulating system and vehicle

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

[0032] In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements....

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Abstract

The invention belongs to the technical field of fuel cells, and discloses a hydrogen circulation system and a vehicle, the hydrogen circulation system comprises a hydrogen supply assembly, a gas supply assembly, a first switch valve, an ejector, a galvanic pile, an expansion machine and a hydrogen circulation pump, and high-pressure hydrogen of the hydrogen supply assembly enters the ejector through the first switch valve; the gas supply assembly conveys air into the electric pile at the same time, hydrogen ejected by the ejector reacts with the air in the electric pile, unreacted hydrogen is ejected into the electric pile again through the hydrogen circulating pump, unreacted air is conveyed through a pipeline to impact the expansion machine, and by improving the hydrogen return pressure of the fuel cell, the ejector can achieve a good ejection effect; the expansion machine does work on the hydrogen circulating pump, and hydrogen can be injected back into the electric pile with a very small pressure rise rate, so that the hydrogen circulating pump can realize hydrogen circulation with very small or no electric power consumption, and the net output power of the fuel cell system is increased under the condition of meeting the hydrogen circulation.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a hydrogen circulation system and a vehicle. Background technique [0002] In recent years, the electrification of automobile development has become the development direction of future automobiles, and hydrogen fuel cell vehicles have broad development prospects. Among them, the hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy, and does not use the method of burning firewood, gasoline or energy storage, and does not pollute the environment. The hydrogen circulation system is an important subsystem in the fuel cell system, and is responsible for continuously supplying a certain pressure and flow of high-purity hydrogen to the stack to ensure the normal progress of the electrochemical reaction in the fuel cell stack. The system fails to fully utilize the electrical energy generated in the fu...

Claims

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Application Information

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IPC IPC(8): H01M8/04H01M8/04082H01M8/04089
CPCH01M8/04097H01M8/04201H01M8/04Y02E60/50
Inventor 倪永成易正根陈雷雷刘豪梅赟栋
Owner FAW JIEFANG AUTOMOTIVE CO
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