Fuel cell water content detection device and control method

A fuel cell water and detection device technology, which is applied in the direction of fuel cell control, fuel cell, fuel cell additives, etc., can solve the problem of reducing the service life of the fuel cell, the inability to observe the flooding of the front of the flow channel of the fuel cell flow field plate, Inaccurate water content control and other issues

Active Publication Date: 2020-10-30
JIANGSU UNIV
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Problems solved by technology

However, the general purging method tends to cause inaccurate control of the water content in the fuel cell, and it is impossible to observe the serious situation of water flooding in the front or middle and rear of the flow field

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  • Fuel cell water content detection device and control method
  • Fuel cell water content detection device and control method
  • Fuel cell water content detection device and control method

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all examples. Based on the embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present invention.

[0028] Such as figure 1 and figure 2As shown, the edge light-transmitting flow field plate and the water content detection method provided by the present invention include the edge light-transmitting flow field plate in the fuel cell 12, the gasket 10 for sealing gas, the parallel light source 1, the illuminance sensor 9, and the parallel light source 1 Irradiate vertically at the edge transparent flow field plate, and keep uniform distribution and...

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Abstract

The invention discloses a fuel cell water content detection device and a control method. The fuel cell water content detection device comprises an edge light-transmitting flow field plate, a fuel cell, a parallel light source, an illuminance sensor, a control unit, an air tank, an electric control switch valve, a regulating valve and an automatic flow meter. The edge of a flow field plate of the fuel cell is transparent through glass and adhesive, and the glass corresponds to a runner of the fuel cell, wherein the parallel light source penetrates through the fuel cell edge light-transmitting flow field plate, and emitted light signals are received by the illuminance sensor. The control unit receives signals sent by the illuminance sensor and the automatic flow meter, the air tank is connected with the electric control switch valve, the regulating valve, the automatic flow meter and the fuel cell, and the control unit regulates the electric control switch valve and the regulating valveto purge the fuel cell according to voltage signals of the illuminance sensor, the automatic flow meter and the fuel cell. The method for detecting and controlling the water content of the fuel cell can accurately meet the purging requirement of the cell in the running process of an automobile according to the water content.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a method for detecting and controlling the water content of the fuel cell. Background technique [0002] With the reduction of fossil energy and the country's increasing emphasis on energy conservation and emission reduction, new energy has attracted more attention, and fuel cells are considered to be one of the most promising directions. Among them, the low-temperature hydrogen-oxygen fuel cell has the advantages of lower requirements on the working environment temperature, no additional carbon emissions, and no open flames due to the catalytic reaction of the catalyst, so it has a wide range of applications. However, there are still various problems surrounding fuel cells, among which membrane dryness and water flooding are particularly important. The catalytic reaction of fuel cells often occurs at the triple point. Membrane dryness and water flooding both reduce the reaction rate, ...

Claims

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Application Information

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IPC IPC(8): H01M8/04492H01M8/04298
CPCH01M8/04492H01M8/04529H01M8/04298Y02E60/50
Inventor 徐晓明胡昊梅楠李辰孙旭东
Owner JIANGSU UNIV
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