As a positive displacement compressor, the diaphragm compressor has two major characteristics determined by its structural characteristics: large compression ratio and good sealing. It is widely used to compress and transport various high-purity gases, precious rare gases, poisonous and harmful Gas and corrosive gas, as an irreplaceable positive displacement compressor, it will have more extensive applications along with the progress and development of science and technology and the continuous improvement of people's living standards. The main application areas of diaphragm compressors are: aerospace, nuclear power, food and medicine, petrochemicals, electronics industry, materials industry, national defense and military industry, and scientific experiments.