| 摘要 |
PROBLEM TO BE SOLVED: To allow a rise in temperature caused by sludge accumulated in an oil separator to be precisely detected.SOLUTION: A compression device includes a detection flow path 14 connected to an outlet of gas from which oil of an oil separator 2 is separated and provided with a temperature sensor 16 detecting a temperature of the gas and a gas discharge flow path 20 branched from the detection flow path 14 downstream of the temperature sensor 16 and discharging the gas via a gas discharge valve 21. The gas discharge valve 21 is opened when a pressure of the detection flow path 14 reaches a predetermined gas discharge pressure. A pressure holding valve 17 having an opening change so that the pressure of the detection flow path 14 is held at a predetermined maintenance pressure or more is preferably provided at a terminal end of the detection flow path 14. The maintenance pressure is lower than the gas discharge pressure. |
