FIELD: machine building.
SUBSTANCE: group of inventions relates to a method and a device for controlling temperature of oil in a compressor plant with oil injection or in a vacuum pump and a compressor unit or a vacuum pump equipped with such a device. Device for controlling oil temperature of compressor plant (1) with oil injection or vacuum pump, comprising compressor element (2) with inlet (3) of gas and outlet (5) of compressed gas, which is connected to oil separator (8), connected by means of injection tube (12) to element (2). In part (19) of tube (12) there is cooler (17) installed so that it can be bypassed by means of bypass tube (18). Device (20) is equipped with tube (21) for connection in parallel with tube (18) and cooler (17). Energy recovery system (22) is made with possibility of connection with tube (21). Device (20) is equipped with means (23) of flow distribution through cooler (17), tubes (18, 19) and controller (28) for control of temperature control device on outlet (5) of element (2).
EFFECT: group of inventions is aimed at preventing formation of condensate and holding oil temperature above the actual dew point.
18 cl, 6 dwg
