Fuel Cell Ultrasonic Coating Equipment
Abstract: CHEERSONIC designed a new spraying method-ultrasonic atomization spraying equipment based on the principle of ultrasonic, briefly introduced its application and principle in the field of fuel cells, and analyzed the use of ultrasonic atomization spraying equipment Advantages in this area.
Keywords: Ultrasonic atomization spraying; Ultrasonic atomization; Ultrasonic spraying equipment; Fuel cell
With the increasingly prominent environmental and resource issues, fuel cells have become a high-tech project that countries are vying to study. In the process of fuel cell development, micro and uniform spraying of proton exchange membranes containing catalysts is an important part of it. As the spraying flow rate, sprayed liquid particle size and uniformity of ordinary spraying equipment are not easy to control, it is obviously unable to meet the requirements of fuel cell spraying systems. Ultrasonic spraying system is widely used in fuel cell R&D and production process due to its fine flow rate, uniform spraying, easy control of atomized particle size, low loss, and resistance to clogging.
The fuel cell introduced in this article is a proton membrane fuel cell. According to investigations, proton exchange membranes account for about 35% of the cost of proton membrane fuel cells for vehicles. Therefore, reducing the production cost of proton exchange membranes is a key factor in the current research on fuel cells. Ultrasonic atomization spraying equipment has been gradually used in the production of fuel cells in recent years. The film formed by ultrasonic atomization equipment is uniform and dense, and the thickness of the film layer is between 10-100 microns. Compared with other ultrasonic spraying equipment The membrane proton exchange rate is increased by more than 30%.
Ultrasonic atomization spraying technology can achieve high-precision coating that was difficult to achieve with high-pressure spraying equipment. Compared with raw materials, it can save 80%, save costs, reduce environmental pollution, and reduce harm to the human body. The ultrasonic atomization equipment is transmitted through the liquid inlet system. The liquid size is refined into sub-micron droplets at the atomizing head with the largest vibration frequency of the ultrasonic spraying equipment, and then sprayed directly or controlled by the air-filling equipment to control the spraying direction, range and shape . The advantages of this ultrasonic atomization spraying method are: (1) The droplets formed are sub-micron, so the film formed by spraying is a sub-micron high-precision film; (2) The biggest problem with high-pressure spraying is the amount of liquid sprayed. Sputtering is prone to occur, and ultrasonic spraying equipment can achieve low-speed and low-flow spraying, which can completely eliminate this phenomenon; (3) No nozzle clogging will occur.
Video of Fuel Cell Coating
Ultrasonic spray fuel cell catalyst coating system can produce highly uniform, repeatable and durable coatings. Our ultrasonic spraying can well control coating properties, significantly reduce material usage, and reduce maintenance and downtime.
