OIL SUPPLY TYPE SCREW COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To provide a cooling water amount adjusting device for a screw compressor, simplifying a circulating oil path and automatically adjusting a cooling water amount to suppress supercooling of compressed air and oil. SOLUTION: An oil supply type screw compressor comprises: an air cooler 11 cooling compressed air from an oil separator 8; an oil cooler 9 cooling oil content collected by the oil separator 8; and a cooling tower 16 circulating and supplying cooling water to the air cooler 11 and the oil cooler 9. The oil supply type screw compressor further comprises: a pump 17 disposed to a cooling water supply pipe 14 of the cooling tower 16; a temperature detector 20 detecting a discharge temperature of a compressor body; and a control means 21 comparing a detection temperature from the temperature detector 20 with a preset temperature and adjusting the cooling water supply amount of the pump 17 to maintain the constant discharge temperature. COPYRIGHT: (C)2009,JPO&INPIT