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1. (WO2018179190) LIQUID-FEED TYPE GAS COMPRESSOR

Pub. No.:    WO/2018/179190    International Application No.:    PCT/JP2017/013105
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Thu Mar 30 01:59:59 CEST 2017
IPC: F04B 39/06
F25B 1/00
Applicants: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
株式会社日立産機システム
Inventors: MORITA Kenji
森田 謙次
Title: LIQUID-FEED TYPE GAS COMPRESSOR
Abstract:
Provided is a liquid-feed type gas compressor capable of monitoring the liquid surface height inside a gas-liquid separator. The liquid-feed type gas compressor comprises: an oil separator 4 that separates and stores oil from compressed air discharged from a compressor main body 1; a sampling pipe 19 having the inlet side thereof connected to the oil separator 4 at a prescribed height position and causing fluid to flow from the prescribed height position of the oil separator 4 as a result of the pressure difference between the inlet side and the outlet side; a pressure sensor 20 that detects the pressure of fluid that flows through the sampling pipe 19; a control device 7 that determines whether the fluid that flows through the sampling pipe 19 is oil or gas, by determining whether or not the pressure detected by the pressure sensor 20 rises above a set value P1 or falls below a set value P2; and a display device 8 that makes notification of the determination results from the control device 7.