Fuel cell testing platform and temperature-and-humidity control system

Abstract

The invention discloses a temperature-and-humidity control system which comprises the components of a humidifying system, wherein a humidifier, a water tank, a circulating water pump and a water heater are connected through pipes for forming a humidifying water circulating path; and a temperature-and-humidity adjusting system which comprises a first heat exchange, a gas-and-liquid separator and asecond heat exchanger, wherein the first heat exchanger, the gas-and-liquid separator and the second heat exchanger are serially arranged in a gas discharging pipe. The pipe for connecting the water heater and the humidifier is communicated with a heat exchange pipe through a tee joint flow regulating valve. The heat exchange pipe is successively communicated with a plurality of heat exchangers for performing temperature regulation on the gas discharging pipe. The gas discharging pipe is also provided with a temperature detecting device and a temperature-and-humidity detecting device. According to the temperature-and-humidity control system, accurate control for the temperature and humidity of the gas is realized through a plurality of heat exchangers. The water in the water heater can beused for humidifying the gas in the humidifier and adjusting the final air inlet temperature and dew point temperature by the heat exchanger, thereby effectively improving heat utilization rate and reducing energy consumption. The invention further discloses a fuel cell testing platform.

Description

technical field [0001] The invention relates to the technical field of fuel cell testing, in particular to a fuel cell testing platform and a temperature and humidity control system thereof. Background technique [0002] Proton exchange membrane fuel cell (PEMFC for short) is a kind of fuel cell, which is equivalent to the "reverse" device of water electrolysis in principle. Its single cell is composed of anode, cathode and proton exchange membrane. The anode is the place where the hydrogen fuel is oxidized, and the cathode is the place where the oxidant is reduced. Both electrodes contain catalysts to accelerate the electrochemical reaction of the electrode, and the proton exchange membrane is used as the electrolyte. When working, it is equivalent to a DC power supply, its anode is the negative pole of the power supply, and the cathode is the positive pole of the power supply. [0003] PEMFC uses hydrogen and oxygen as reactants to generate electricity and water. It has h...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem of high test energy consumption existing in the prior art, the present invention provides a new temperature and humidity control system for the fuel cell test platform. The temperature and humidity control system can effectively improve the utilization rate of heat and greatly reduce the test process energy consumption

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