Compressors of refrigeration units
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Description
In refrigeration units piston, centrifugal, screw and rotational use compressors.
Piston compressors of refrigeration units are arranged also as compressors air, but have specific features. Let's specify three of them. Unlike air compressors, compressors of refrigeration units work with couples of refrigerating agents. Usually it is couples of freon or ammonia. Couples are easily condensed therefore a significant amount of a liquid phase of the agent can get to the cylinder of the compressor. At the same time are inevitable blow of the piston in a cylinder cover through liquid and failure of the compressor. That to avoid this accident, the cylinder cover, more precisely a plate of delivery valves, becomes mobile. It is pressed in the place by a cylindrical spring. It is the first feature of refrigerating piston compressors.
Piston compressors of refrigeration units are arranged also as compressors air, but have specific features. Let's specify three of them. Unlike air compressors, compressors of refrigeration units work with couples of refrigerating agents. Usually it is couples of freon or ammonia. Couples are easily condensed therefore a significant amount of a liquid phase of the agent can get to the cylinder of the compressor. At the same time are inevitable blow of the piston in a cylinder cover through liquid and failure of the compressor. That to avoid this accident, the cylinder cover, more precisely a plate of delivery valves, becomes mobile. It is pressed in the place by a cylindrical spring. It is the first feature of refrigerating piston compressors.
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Compressors of refrigeration units