Compressor (lat.. compressio - compression) - the machine to increase the pressure and the movement of gas.

compressor plant - the totality of the compressor, the drive and auxiliary equipment (gazoohladitelya, drier air and more . etc.). Compressors, different pressures, productivity, compressible environment, environmental conditions have a great variety of designs and types. Compressors are classified in a number of factors. According to the principle of action compressors are divided into extensive, blade and termokompressory. Under the principle of action understand the main feature of the build up of pressure, depending on the design of the compressor.

Volumetric compressor - this is the car in which the process of compression occurs in the working cells, altering its volume from time to time, alternately communicating with the input and output compressor. Volumetric machines to shape the working bodies and how changes in the working chamber can be divided into piston, diaphragm and rotary (screw, rotational plate, liquid-ring, with katyaschimsya rotor, gas Ruth spiral) compressors. Reciprocating compressors (at high pressure compression applied to plunger) can be unilateral or bilateral action, crosshead and beskreytskopfnye, smazyvaemye and without lubrication (dry friction).

By volume machines with rotating szhimayuschim element (rotary machines ) are: Screw compressors, rotational plate, a liquid ring compressor and other construction machines.

Lopastnoy compressor - a dynamic action in which the compression of gas occurs as a result of the interaction flow with rotating blades and fixed bars . A characteristic feature of blade machines is the lack of pressure pulses are developed by them. By the blade compressors include radial (centrifugal), radial-axial (diagonal), axial, vortex.

By appointment compressors are classified by industry, for which they are (chemical, energy, general stores and so on etc.), based on compressible gas (air, oxygen, chlorinated, nitrogen, helium, etc.).

At the end pressure discern: vacuum compressors - machines that otsasyvayut gas from space to lower the atmospheric pressure or higher, low-pressure compressors are designed for pumping gas at a pressure of 0.15 to 1.2 MPa, the average - from 1.2 to 10 MPa, and high - from 10 to 100 MPa and ultrahigh-pressure designed to compress the gas above 100 MPa.

Compressors called dozhimayuschimi, if the pressure of the gas intake significantly higher than atmospheric. Compressor Efficiency is usually expressed in units of gas, reduced to normal conditions. At the same time distinguish the performance of the entrance and exit. These values are almost equal, with little difference in pressure between the entrance and exit. When a big difference from, say, a piston compressor, the output performance can be at the same speed to fall more than doubled compared with the input output, measured at zero pressure differential between input and output.

By way of disqualification heat - water and air cooling.

According to the type of drive engine - driven by an electric motor, internal combustion engine, steam or gas turbines.

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