FIELD: compressor technology.
SUBSTANCE: reciprocating compressor stage contains inlet and outlet valves, cooled suction and discharge cavities, a suction line pipe and discharge line pipe 3, a liquid-cooled heat exchange device in the form of tube bundle 5. A liquid-cooled heat exchange device in the form of tube bundle 5 is placed in the discharge cavity to provide additional cooling of the said cavity. The open cross-sectional area of the channels for the passage of gas through it must be no less than the area in the slot of the fully open exhaust valve.
EFFECT: improved isothermal efficiency of the stage.
1 cl, 2 dwg, 1 tbl
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