A hydrogen fuel cell vehicle tail gas water gas separation discharge system and its control method

Abstract

The invention discloses a hydrogen fuel cell vehicle tail gas water gas separation and discharge system and a control method thereof. The hydrogen water vapor mixing pipeline is equipped with a first gas-liquid separator and then connected to the mixing device and the hydrogen supply system of the fuel cell. The air-water-steam mixing pipeline is provided with a second gas-liquid separator and connected to the mixing device. The invention realizes the gas-liquid separation treatment of the tail gas of the hydrogen supply system and the oxygen supply system, adds a mixed discharge device to the tail gas treatment system, integrates a drainage box and an exhaust box, and separates the dry gas and water in the mixed discharge device. Box storage and handling, making for a more compact arrangement. At the same time, after gas-liquid separation, part of the hydrogen can be returned to the fuel cell hydrogen supply system for recycling.

Description

technical field [0001] The invention relates to a hydrogen fuel cell, in particular to a hydrogen fuel cell vehicle tail gas water-gas separation and discharge system and a control method thereof. Background technique [0002] In order to cope with international environmental problems and energy crisis, hydrogen fuel cell vehicles have become the development strategy of countries all over the world. With the popularization of hydrogen fuel cell vehicles, more and more problems have emerged. Among them, the water in the tail gas of hydrogen fuel cell vehicles is discharged randomly, and the road surface is slippery or icy while walking, causing risks such as wheel skidding, which causes environmental and traffic issues. The exhaust drainage solenoid valve of fuel cell vehicles will freeze and fail to work in cold temperatures, resulting in drainage system failures affecting the entire exhaust emission function. At the same time, excessive hydrogen concentration in the exhaus...

AI Technical Summary

Problems solved by technology

With the popularization of hydrogen fuel cell vehicles, more and more problems have emerged. Among them, the water in the tail gas of hydrogen fuel cell vehicles is discharged randomly, and the road surface is slippery or icy while walking, causing risks such as wheel skidding, which causes Environmental and Traffic Issues

The solenoid valve for fuel cell vehicle exhaust drainage will freeze and fail to work in cold temperatures, resulting in drainage system failures affecting the entire exhaust emission function. At the same time, the concentration of hydrogen in the exhaust gas exceeds the standard and there will be safety hazards.

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