Fuel batter system with proton exchange film used for high-performance vehicle and ship

Abstract

A high-performance proton exchanging film fuel battery system flow which is used in vehicle and ship includes fuel battery, air system flow, hydrogen gas system flow and cooling part flow. The air system flow element includes: air filter, air supply arrangement (direct current speed governing fan or air compressor), air damp conversion device equipped with water separater, radiator; the hydrogen gas system flow includes: high-pressure hydrogen gas tank, normally closed two-position two-way solenoid valve, hydrogen gas high-pressure decompressor, hydrogen gas constant pressure arrangement, hydrogen gas humidifying device, hydrogen gas reflux pump, hydrogen gas water separater, two-position three-way solenoid valve; the cooling system element includes: water tank, direct current speed governing pump and radiator. The structure of the invention is simple, the efficiency is high, service life is long, and it fits for proton exchanging film fuel battery system flow which is used in vehicle and ship.

Description

technical field [0001] The invention relates to a proton exchange membrane fuel cell, in particular to a high-efficiency vehicle and ship proton exchange membrane fuel cell system and process. Background technique [0002] Proton exchange membrane fuel cell is a device capable of converting hydrogen fuel and oxidant into electrical energy and its products, and is an efficient and environmentally friendly power generation device. Proton exchange membrane fuel cells can be used as portable, mobile, and fixed power generating devices, and can be used as power systems for all vehicles and ships. The hydrogen fuel of proton exchange membrane fuel cells used in vehicles and ships is pure hydrogen, and the oxidant is usually air. When hydrogen and air are sent into two gas chambers separated by the membrane electrode (MEA), the hydrogen generates hydrogen ions and electrons under the action of the electrocatalyst of the membrane electrode (MEA), and the electrons output current in...

AI Technical Summary

Problems solved by technology

[0009] (1) After the fresh air is humidified, the humidity is high and contains some liquid water, which is easy to corrode the air supply device, and the power consumption of the air supply device increases due to the existence of liquid water

[0010] (2) Since in the humidifier, the fresh air is under negative pressure and the reaction waste gas is under positive pressure, it is easy to make the reaction waste gas be sucked into the fresh air and sent into the battery by the air supply device together, reducing the oxygen content of the fresh air , so that the power generation efficiency of the battery is reduced

[0011] (3) There is no water separation part in the humidification device, and liquid water will directly enter the battery, which affects power generation efficiency and reduces battery life

Method (1) The water in the water tank is consumed and needs to be recovered from the exhaust air, which makes the system complicated and it is difficult to ensure the balance between the consumed water and the recovered water

Method (2) uses a small amount of water vapor in the air for humidification, but the humidification ability is low and the effect is poor

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