Air humid enthalpy converting device used for fuel batter with proton exchange film

Abstract

A air moisture transform device which is used in proton exchanging film fuel cell includes power part, moisture transform part, it characterized in that: said air moisture transform device also includes diversion part; the power part includes timing motor and motor controller, the moisture transform part comprises fixed end plate(201) equipped with supporting seat, floating end plate, moisture transform tubular with multi cavity and sealing part, the diversion part(3) comprises shell(301) and screen mesh(303) which is set in the shell(301), the advantages of the invention are: The application range of device is wide, the service life and generate electricity efficiency of proton exchanging film fuel cell can be guaranteed, the cost of maintaining is low.

Description

technical field [0001] The invention relates to the technical field of proton exchange membrane fuel cells, in particular to an air humidity enthalpy conversion device for proton exchange membrane fuel cells. Background technique [0002] Proton exchange membrane fuel cell is a device that converts hydrogen fuel and oxidant into electrical energy and its products. It is an efficient and environmentally friendly power generation device. , Mobile and fixed power generation devices. [0003] The proton exchange membrane battery needs water molecules to keep the proton exchange membrane moist during operation, so the air supplied to the fuel cell needs to be humidified to increase the relative humidity of the air entering the fuel cell to prevent the proton exchange membrane from losing water. At the same time of humidifying the air, increasing the temperature of the air can improve the power generation efficiency of the proton exchange membrane fuel cell. [0004] According t...

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Problems solved by technology

The deficiencies of the air humidifying device in the prior art are: 1. Due to the use of a constant speed motor, the motor speed cannot be adjusted, and different speeds cannot be adopted according to the different output power of the proton exchange membrane fuel cell and the different requirements for humidity enthalpy; 2. The friction pair of the wet enthalpy conversion cylinder is an integrated structure with the cylinder body. After the friction pair wears a lot, the device can only be replaced as a whole, and the friction pair cannot be replaced separately. The maintenance cost is high; 3. The friction pair of the wet enthalpy conversion cylinder is adjusted by a screw Clearance, difficult assembly, low precision; 4. Due to the wear of the friction pair, the screw should be adjusted frequently during use, and the operation is cumbersome; Large; 6. There is no water separation part, and a small part of liquid water directly enters the proton exchange membrane fuel cell after the wet enthalpy conversion, which affects the power generation efficiency and life of the cell

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