Screw air compressor has a series of unique advantages, such as simple structure, reliable operation and convenient operation. Now it has been widely used. The screw air compressor is composed of the main engine of the screw compressor, the motor, the oil-gas separator, the cooler, the fan, the water separator, the electric control box, the gas pipeline, the oil pipeline, the regulating system and so on. Screw compressor is a kind of two-shaft volumetric rotary compressor, which is mainly composed of the main (positive) pair (negative) two rotors to form a meshing pair, the main and auxiliary rotor tooth shape outside with the inner wall of the casing to form a closed unit volume; while single screw compressor is a single-shaft volumetric rotary compressor, its meshing pair is a worm. It is composed of two symmetrical planed star wheels, and the spiral groove of the worm, the tooth surface of the star wheel and the inner wall of the casing form a closed elementary volume.
Screw air compressor is a popular and more applicable model, it will replace the traditional piston air compressor, screw air compressor has more advantages than other types of air compressor, the following screw air compressor specific advantages.
1. The specifications of screw air compressor are relatively simple. In a certain range of air volume, the diameter and shape of the rotor can be maintained unchanged, but only the screw rotor can be lengthened and shortened to meet the needs of different air volume. This characteristic can reduce the manufacturing cost to help the market competitiveness.
2. Like the reciprocating air compressor, it has the same characteristics as the constant displacement air compressor, and the exhaust pressure has a wide range of variations.
3. The structure of screw air compressor is not complicated, and its performance in continuous use is quite good. At the same time, compared with reciprocating air compressor, it reduces a lot of consumptive parts and is easy to maintain.
4. The noise of screw air compressor is relatively high in almost all air compressors. The noise depends on the air volume. It usually exceeds 100 dbA. Therefore, screw air compressor needs to be equipped with sound insulation cover, which gives a good impression of beauty.
5, throttling control can be used.
6. Oil-injection screw air compressor shaft seal air tightness is good, and centrifugal compressor used in high-speed shaft seal air tightness can not be satisfied, so it is not suitable for air or nitrogen outside any gas compression.
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