A temperature and humidity control system for fuel cell reaction gas

Abstract

The invention provides a temperature and humidity control system for fuel cell reaction gas. The gas to be controlled is divided into two paths. The gas outlet of the first pipeline is connected to the first air inlet of the humidification tank; the gas outlet of the second pipeline is connected to the humidification tank. The second air inlet; the humidification tank contains water and aeration stone; the temperature of the water in the humidification tank is controlled to reach the preset temperature value; the first air inlet is connected to the aeration stone through a pipe, and the aeration stone breaks the gas into small The air bubbles are discharged from the water, so that the temperature of the gas discharged from the water reaches the preset temperature value, and the humidity reaches the second humidity; the second air inlet and the second air outlet of the humidification tank are connected by a pipe submerged in the water in the humidification tank , the humidity of the gas flowing out from the second gas outlet remains unchanged, and the temperature reaches the preset temperature value; the two-way gas discharged from the two gas outlets is mixed to control the proportional control of the gas flow rate of the first pipeline and the gas flow rate of the second pipeline The humidity of the mixed gas. The invention realizes simultaneous simple and effective control of gas humidity and temperature.

Description

technical field [0001] The invention belongs to the field of temperature and humidity control of fuel cell reaction gas, and more specifically relates to a temperature and humidity control system of fuel cell reaction gas. Background technique [0002] Proton exchange membrane fuel cell, as a clean new energy, has the advantages of high energy conversion efficiency, no pollution, zero emission, etc., and has broad development prospects. In the process of fuel cell design and testing, it is necessary to simulate the working conditions under various environmental and operating conditions, adjust the flow rate, pressure, temperature, humidity and other parameters of the reaction gas, and verify its performance and reliability under various conditions . [0003] Patent CN201821999866.8 discloses a gas temperature and humidity control system for a high-power test platform, which specifically includes a reaction gas inlet pipeline, a humidifier outlet pipeline, a humidification w...

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a temperature and humidity control system for fuel cell reaction gas, aiming to solve the problem that the existing fuel cell reaction gas temperature and humidity control system is complicated and the control effect is not good

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