Catalyst continuous spray device used for fuel cell membrane electrode production

Abstract

The invention discloses a catalyst continuous spray device used for fuel cell membrane electrode production. The catalyst continuous spray device comprises at least two spray modules, a heating moduleand at least bearing rollers. Each spray module comprises a spray nozzle, a material conveying pump, a material conveying pipe, transmission rollers and reverse rotation rollers. The heating module comprises heating plates and a heating box. Each spray nozzle is connected with the corresponding material conveying pump through the material conveying pipe and is located above the corresponding transmission rollers and the corresponding bearing rollers. The corresponding bearing wheels are located on the two sides below each spray nozzle. The reverse rotation rollers are located between the spray modules. A spray area is arranged between every two corresponding bearing rollers. The corresponding transmission rollers are arranged at the front end and the rear end of each spray area and can freely move in the spray area in the horizontal direction and the vertical direction. The spray modules can be arrayed in an up-down, left-right or L-shaped manner. The material conveying pumps are of adiaphragm type, a liquid injection type, a gear type or a rotor type.

Description

technical field [0001] The invention relates to the technical field of spraying equipment, in particular to a catalyst continuous spraying device for fuel cell membrane electrode production. Background technique [0002] Membrane electrodes are generally composed of proton exchange membranes, catalysts, and carbon paper or carbon cloth. The proton exchange membrane is usually sandwiched between two carbon papers or carbon cloths. The catalyst is located at the junction of the proton exchange membrane and carbon paper or carbon cloth. Generally, spraying equipment is used to spray on both sides of the film. [0003] In the existing catalyst spraying equipment for the production of fuel cell membrane electrodes, a single nozzle is generally used, and an intermittent operation mode is adopted; After the completion, it is necessary to wait for a period of time before spraying the other side. The spraying work cannot be carried out continuously, and dust and impurities are easy ...

AI Technical Summary

Problems solved by technology

[0003] In the existing catalyst spraying equipment for the production of fuel cell membrane electrodes, a single nozzle is generally used, and an intermittent operation mode is adopted; After the completion, it is necessary to wait for a period of time before spraying the other side. The spraying work cannot be carried out continuously, and dust and impurities are easy to adhere to the surface of the coating; in the production process based on the existing production equipment, due to the need to reverse the film and other operations , can only be used in a single-piece manner, and most of the reversal, cutting, and fixing of the membrane require manual intervention, it is difficult to form large-scale production, the production cost is high, and the consistency is poor; therefore, there is an urgent need for a continuous catalyst for membrane electrode production. The spraying device realizes continuous spraying on both sides of the membrane at the same time, improves production efficiency and reduces production costs, and reduces manual interference in the process, ensuring the consistency of membrane electrode production

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