Water segregator for vehicle-ship fuel cell engine

Abstract

The invention discloses a water segregator for a vehicle / ship fuel cell engine. The water segregator comprises a gas-water separation unit and an automatic drainage unit. The gas-water separation unitcomprises a vortex separator, a water baffle, a water stabilizing plate, a gas guide pipe and a shell, and the automatic drainage unit comprises a liquid level switch and a drainage valve; the designof the concentric-square-shaped water stabilizing plate is adopted, the probability of wrong liquid level signal generation of the water segregator caused by the working conditions of vehicle / ship acceleration and deceleration, turning, emergency braking and the like is effectively reduced and thus risks of frequent opening of electromagnetic valve and gas leakage are avoided; and the design thatthe outer edge of the water baffle is attached to the inner wall of the shell and the water guide hole is reserved and the spiral air guide pipe are adopted, the water distribution efficiency of thewater segregator is effectively improved, and thus the power consumption of the circulating pump is reduced, and the risk that the service life of the circulating pump is shortened is reduced. In addition, the water segregator has the advantages of low technical difficulty, safety, reliability, good economic benefit and the like.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a novel water separator used for vehicle / ship fuel cell engines. Background technique [0002] Compared with traditional power plants, fuel cell engines have the advantages of high energy conversion efficiency, low vibration and noise, zero emissions and no pollution. They are ideal power equipment for new energy vehicles and green ships, and have broad market prospects. [0003] A water separator in a fuel cell engine is usually installed between the fuel cell stack and the hydrogen circulation pump to achieve water-gas separation and reduce the probability of liquid water entering the hydrogen circulation pump, thereby reducing the power consumption of the circulation pump and prolonging its life. At present, the water separator generally adopts the cyclone water separator with integrated automatic drainage function. [0004] The utility model patent "A Water Se...

AI Technical Summary

Problems solved by technology

[0005] However, for fuel cell engines of automobiles and ships, the obvious shortcomings of the existing water separators are: the acceleration, deceleration, turning, breaking up and down, emergency braking and other working conditions of automobiles and ships, which lead to the failure of the water separators in fuel cell engines. The liquid level tilts, swings and shakes, causing wrong liquid level signals to be sent out, causing the solenoid valve to open frequently, reducing the life of the solenoid valve, and more seriously, there is a risk of gas leakage; the water separation effect of the water separator is poor, and it is easy for liquid water to enter Hydrogen circulation pump, resulting in increased power consumption of the hydrogen circulation pump and reduced life due to bearing corrosion

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