2026-04-10Views：
In addition to screw air compressors, there are many types of air compressors, including but not limited to the following:
piston air compressor: This is a device that uses piston movement to compress gas. Its price is usually cheaper, can act on the pressure area, suitable for a variety of environments. However, as a relatively early type of air compressor, its speed is slower than the new generation of air compressor.
Centrifugal air compressor: centrifugal air compressor is a kind of turbine compressor. It generally uses a motor direct drive, through the ultra-high-speed rotation of the motor rotor to drive the impeller to drive the gas to rotate at a high speed, and interact with the volute to produce high-pressure, large-flow air. This air compressor has compact structure, small size, good sealing, light weight, low vibration, and high efficiency under rated conditions. It is considered to be one of the promising air compression methods in the future. Factories with high requirements for manufacturing environment, such as pharmaceutical factories and food factories, often use centrifugal air compressors because they do a good job in hygiene and can keep air quality at a high level.
Scroll air compressor: The scroll air compressor forms multiple compression chambers through the meshing of the fixed scroll and the movable scroll, and compresses the air through two staggered spiral blades to realize the suction and compression of the gas. Due to its unique structure, the scroll air compressor has the advantages of simple structure, small footprint, low noise and long service life.
Sliding vane air compressor: The overall structure of the sliding vane air compressor is very simple, the manufacturing cost is not high, and the cost investment during use is relatively small, which can meet the output demand of a larger amount of gas.
In addition, according to the working pressure, air compressors can be divided into low-pressure air compressors, medium-pressure air compressors and high-pressure air compressors. According to the lubrication method, it can be divided into oil-free air compressors and oil (or oil) lubricated air compressors. According to the performance, it can be divided into low noise, frequency conversion and explosion-proof air compressors. According to the form, it can be divided into fixed, closed and mobile air compressors.
The above information is for reference only. If necessary, it is recommended to consult the air compressor manufacturer or consult relevant books.
Answer: The pressure range of atmospheric air compressor is between 0.7Mpa and 0.8Mpa, and the pressure range of low pressure air compressor is between 0.4 Mpa and 0.8 Mpa. As an air compressor manufacturer, Shanghai granklin
Oil-free scroll compressors can indeed be used for gas transfer. The oil-free scroll compressor is a kind of positive displacement compressor. Its working principle is to compress through two intermeshing scrolls (a fixed scroll and an eccentric swirling and flat scroll).
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Water jet screw compressor does not need pure water, softened water is enough. Tap water must not be used directly, it will scale and corrode and wear. Pure water is too expensive and unnecessary. Softened water is the most cost-effective. The water-lubricated air compressor is used with softened water. The machine has long life, low maintenance cost, and no oil pollution. It is the most worry-free combination.
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