Working principle of diaphragm compressor
Diaphragm compressor, determined by its structural characteristics. It is widely used to compress and transport various high-purity gases, precious and rare gases, toxic and harmful gases and corrosive gases. As an irreplaceable positive displacement compressor, it will be more widely used with the progress and development of science and technology and the continuous improvement of people's living standards. The main application fields of diaphragm compressor are: nuclear power, food and medicine, petrochemical industry, electronic industry, material industry, national defense and military industry, scientific test and other industries. A kind of
The diaphragm compressor is mainly composed of motor, base, crankcase, crankshaft connecting rod movement mechanism, cylinder block parts, oil and gas pipeline, electric control system and some accessories. Chinese style
The principle of special oil-free high-pressure nitrogen compressor for gas auxiliary is that nitrogen and hydraulic oil are completely isolated, no pollution is generated during the compression process, and the disadvantages of high oil content of finished nitrogen in oil lubricated piston high-pressure compressor, high cost of regular filter element replacement and special compressor oil addition are completely avoided. The utility model has the advantages of simple structure, convenient maintenance, high reliability, stable pressure output and minimal operation sound. Chinese style
A reciprocating compressor that compresses and transports gas by reciprocating motion of the diaphragm in the cylinder. The diaphragm is clamped by two limiting plates around and forms a cylinder. The diaphragm is driven by mechanical or hydraulic pressure to move back and forth in the cylinder, so as to realize the compression and transmission of gas.The mechanical driven compressors with rubber or plastic diaphragms are only suitable for the occasion with a discharge capacity of several cubic meters per hour and a discharge pressure of about 1.2 MPa. Generally, they are single-stage or two-stage. A kind of
It is common to use metal diaphragm and hydraulically driven compressor. Its discharge capacity can reach 100 m3 / h, and the discharge pressure of multi-stage compression can exceed 100 MPa. It is suitable for conveying and pressurizing various gases, and it can also be used as the booster compressor after oil-free lubrication compressor. The thickness of metal diaphragm is generally 0.3-0.5mm. The life of the diaphragm depends on the material selected and its surface roughness. Due to the high quality of the hydraulic drive, the average speed of the piston in the hydraulic part can only be taken as 2 m / s, so the speed of the machine is usually in the range of 300-500 rpm. The ratio of the working volume surface area to the cylinder volume of the diaphragm compressor is much larger than that of the reciprocating plug compressor, and the gas compression is close to the isothermal process, so the pressure ratio of each stage can be as high as 25. Diaphragm compressor is suitable for various purposes with small exhaust volume because of its good sealing performance and uncontaminated compressed gas. For example, it is used as a small air supply device, pneumatic regulator, ventilation device of aquarium feeding pool, and the transportation and pressurization of oil-free, toxic, corrosive, valuable or radioactive gases in the chemical industry. Chinese style
Diaphragm compressor is a special structure of positive displacement compressor, which is the highest level compression mode in the field of gas compression. This compression mode has no secondary pollution, and has a very good protection for the compressed gas. It has the characteristics of large compression ratio, good sealing performance, and the compressed gas is not polluted by lubricating oil and other solid impurities. Therefore, it is suitable to compress high-purity, rare and precious, flammable and explosive, toxic and harmful, corrosive and high-pressure gases. This compression method is usually specified internationally to compress high-purity gases, flammable and explosive gases, toxic gases, oxygen, etc.
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