A gas-water separation component, fuel cell hydrogen circulation system and application

Abstract

The application belongs to the field of fuel cell technology, and in particular relates to a gas-water separation component, a fuel cell hydrogen circulation system and its application. At present, the fuel cell hydrogen circulation system using a single ejector, the ejector cannot work in a wide power range, and the resistance loss of the gas-water separator in the system is also relatively large. If multiple ejectors are used to work together to broaden the applicable power range of the ejector, the number of system components will increase, the control will become complicated, and the reliability will be reduced. The application provides a gas-water separation assembly, which includes a main body, a nozzle is provided at one end of the main body, and the nozzle is connected with a swirl vane, and an inlet of a gas-liquid mixture is provided at one end of the main body; a drain is provided at the other end of the main body. Air pipe, the other end of the main body is provided with a drain pipe. It has a partial ejector function, which broadens the working range of the ejector; instead of the traditional gas-water separator, the advantages are small, compact, and small pressure loss, which is conducive to improving the performance of the ejector.

Description

technical field [0001] The application belongs to the field of fuel cell technology, and in particular relates to a gas-water separation component, a fuel cell hydrogen circulation system and its application. Background technique [0002] Hydrogen fuel cells can directly convert the chemical energy of hydrogen into electrical energy without combustion. It has the advantages of high efficiency and power density, zero emissions, and silent operation. It is a very promising new energy power generation device. The hydrogen fuel cell chemically reacts the hydrogen on the anode side and the oxygen on the cathode side to generate electricity and water. In order to ensure the high-efficiency operation of the fuel cell, the amount of hydrogen supplied to the anode side is greater than the amount of hydrogen reacted, so it is necessary to establish an anode hydrogen circulation system To recycle the unconsumed hydrogen to improve the utilization rate of hydrogen. [0003] In the hydr...

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Problems solved by technology

[0005] At present, the fuel cell hydrogen circulation system using a single ejector, the ejector cannot work in a wide power range, and the resistance loss of the gas-water separator in the system is also relatively large

If multiple ejectors are used to work together to broaden the applicable power range of the ejector, the number of system components will increase, the control will become complicated, and the reliability will be reduced.

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