-Compressor specifications and quality
The responsibility is to raise the pressure, raising the inspiratory pressure state to the exhaust pressure state.
Compression ratio is a technical expression of pressure difference, which means the absolute pressure on the high pressure side divided by the absolute pressure on the low pressure side. The compression ratio must be calculated using absolute pressure values. To avoid negative compression ratio calculations, absolute pressure rather than surface pressure must be used to calculate the pressure ratio. It is meaningful to use the absolute pressure value to make the compression ratio calculation value positive.
There are five main types of compressors used in the refrigeration and air conditioning industry: reciprocating, screw, rotary, vortex and centrifugal, of which reciprocating is the most used compressor in small and medium commercial refrigeration systems. Screw compressors are mainly used in large commercial and industrial systems. Rotary compressors and scroll compressors are mainly used in household and small-capacity commercial air-conditioning units, while centrifugal compressors are widely used in air-conditioning systems in large buildings.
Various reciprocating compressors are generally classified according to the form of the compressor housing and the setting way of the driving mechanism. According to the form of the shell, it can be divided into open type and closed semi-closed compressor. Enclosed means that the whole compressor is arranged in a housing.
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