A gas distribution and hydrogen circulation structure suitable for dual fuel cell stack systems

A dual fuel cell and gas distribution technology, applied in the direction of fuel cells, fuel cell additives, electrical components, etc., can solve problems such as complex control schemes, and achieve the effects of module integration, cost saving, and space saving

Active Publication Date: 2021-11-02
大连擎研科技有限公司
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AI Technical Summary

Problems solved by technology

To meet the market demand, the construction of dual fuel cell stack systems came into being, but currently there are almost no vehicles equipped with dual fuel cell stack systems, because there are many functional parts and pipelines associated with dual fuel cell stack systems , the control scheme is also relatively complicated, and it is difficult to solve the problem of realizing a single intake (hydrogen or air) port to match the dual fuel cell stack and make the gas entering the stack evenly distributed through a simple structure, and this structure can also realize the hydrogen recirculation function , so as to improve the utilization rate of hydrogen

Method used

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  • A gas distribution and hydrogen circulation structure suitable for dual fuel cell stack systems
  • A gas distribution and hydrogen circulation structure suitable for dual fuel cell stack systems
  • A gas distribution and hydrogen circulation structure suitable for dual fuel cell stack systems

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Embodiment Construction

[0022] The present invention is specifically described below in conjunction with accompanying drawing, as Figure 1-Figure 5 As shown, a gas distribution and hydrogen circulation structure suitable for a dual fuel cell stack system includes a hydrogen circulation pump 1, and the hydrogen circulation pump 1 is connected with an air-in hydrogen-out structure and an air-out hydrogen-in structure through pipelines. The hydrogen output structure, the air output hydrogen input structure and the hydrogen circulation pump 1 are connected in series through pipelines; the air input hydrogen output structure consists of the air input hydrogen output module body 5, the first air input hydrogen output module cover plate 4 and the second Two air-in hydrogen-out module cover plates 11 are formed. The first air-in hydrogen-out module cover plate 4 and the second air-in hydrogen-out module cover plate 11 are placed on both sides of the air-in hydrogen-out module body 5, and the air-in hydrogen-...

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Abstract

The invention discloses a gas distribution and hydrogen circulation structure suitable for a dual fuel cell stack system, including a hydrogen circulation pump, and the hydrogen circulation pump is connected with an air-in hydrogen-out structure and an air-out hydrogen-in structure through pipelines. The air-in-hydrogen-out structure, the air-out hydrogen-in structure, and the hydrogen circulation pump are connected in series through pipelines to achieve three-part series connection. The invention relates to the technical field of dual fuel cell stack systems. The reasonable homogenization of the gas entering the dual fuel cell stack is realized; when the dual fuel cell stack is started cold / hot, the temperature of the water in the two modules is adjusted to assist the start of the stack; the hydrogen circulation function is realized, and the pressure monitoring device Integrated on the module to realize module integration, saving space and cost.

Description

technical field [0001] The invention relates to the technical field of a dual fuel cell stack system, in particular to a gas distribution and hydrogen circulation structure suitable for a dual fuel cell stack system. Background technique [0002] Hydrogen fuel cell is a new type of clean energy that can directly convert chemical energy into electrical energy. It has low vibration, low noise, and the product water can be reused. It also has fast start-up, high power density, long life and low corrosion. And other advantages, it is widely used in aerospace, transportation and other fields, especially in hydrogen fuel cell vehicles. At present, most new energy vehicles are equipped with hydrogen fuel cell single-stack systems. With the increase in power requirements for hydrogen fuel cell stacks, high-power hydrogen fuel cell systems are gradually widely recognized, which undoubtedly poses more challenges for stack designers. Difficult higher requirements. To meet the market ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04082H01M8/04089H01M8/04119H01M8/04302H01M8/0438
CPCH01M8/04097H01M8/04149H01M8/04201H01M8/04388H01M8/04302Y02E60/50
Inventor 王欣佟才超叶帅李杰
Owner 大连擎研科技有限公司
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