A fuel cell humidification system and control method thereof
A fuel cell and humidification system technology, applied in fuel cells, circuits, electrical components, etc., can solve the problem of inability to dynamically adjust the humidity of the intake air, and achieve the effect of improving the reaction rate
Active Publication Date: 2022-04-01
FAW JIEFANG AUTOMOTIVE CO
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Problems solved by technology
[0004] Based on the above, the object of the present invention is to provide a fuel cell humidification system and its control method, which solves the problem in the prior art that the humidity of the intake air cannot be dynamically adjusted according to the fuel cell’s operating conditions.
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[0028] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describin...
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The invention relates to the technical field of humidification of fuel cells, and discloses a humidification system of fuel cells and a control method thereof. Wherein the humidification system of the fuel cell includes: a humidifier, including a casing and a water transmission part, the casing defines an installation cavity, the water transmission part is arranged in the installation cavity, the first gas entering the fuel cell and the exhaust passage through the fuel cell One of the outflowing second gases flows inside the water transfer member, and the other flows outside the water transfer member; the bypass valve communicates with the exhaust channel; the first humidity sensor is used to detect the first Humidity of the gas; current sensor, connected to the fuel cell. In the fuel cell humidification system disclosed in the present invention, when the humidity of the first gas entering the fuel cell detected by the first humidity sensor is far from the preset humidity, the humidification system for the first gas entering the fuel cell is realized by changing the opening of the bypass valve. A preliminary adjustment of the humidity of the gas to meet the humidity of the first gas under the corresponding working conditions.
Description
technical field [0001] The invention relates to the technical field of humidification of fuel cells, in particular to a humidification system of fuel cells and a control method thereof. Background technique [0002] The working principle of the fuel cell is to introduce hydrogen and air to both ends of the proton exchange membrane through the two-stage plate flow channel, and accelerate the reaction of hydrogen and oxygen through the catalyst on the proton exchange membrane. The electrons generated during the reaction are used to drive the motor. The resulting product water is expelled to the atmosphere through the exhaust channel. No harmful substances are generated during the whole working process, but the working environment of the proton exchange membrane needs a certain humidity. Since the air humidity of the external environment generally cannot meet the requirements, it is necessary to increase the humidity of the air by means of external humidification. If the humi...
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IPC IPC(8): H01M8/04119H01M8/04828
CPCH01M8/04149H01M8/04835Y02E60/50
Inventor 韩俊楠张正兴侯福建柳国立
Owner FAW JIEFANG AUTOMOTIVE CO