An Important Part in Heat Pump

Be regarded as the heart of a compressor refrigeration system , the best
performance characteristics of the compressor terminology as ” vapor pump .”
Compressor actual responsibilities is to enhance the pressure to suction pressure
state referred to the exhaust pressure.
The compression ratio is a technique which means that the differential pressure
method in the sense of absolute pressure divided by the high-pressure side to the
low pressure side of the absolute pressure . Calculating the compression ratio must
be absolute pressure values. In order to avoid a negative value of the compression
ratio , calculated pressure ratio must be used when absolute pressure , not gauge
pressure . Absolute pressure values ​​to calculate the compression ratio is positive ,
this makes sense .
Used in refrigeration and air conditioning industry has five major types of
compressors : reciprocating, screw , rotary , scroll , and centrifugal, reciprocating,
which are small and medium-sized commercial refrigeration systems use up to a
compressor . Screw compressors mainly for large commercial and industrial systems.
Rotary compressors , scroll compressors and reciprocating compressors mainly for
household and small-capacity commercial air conditioning equipment , centrifugal
compressors are widely used in air-conditioning systems of large buildings.

Reciprocating compressors are generally based on various forms of the compressor 

housing and a drive mechanism set way classification. According to the form of the
housing has an open and closed half- hermetic compressors . Enclosed is the entire
compressor are disposed within a housing .

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