Oil-cooled screw compressor system and its remodeling method

摘要

A first lubricating oil supply system for supplying lubricating oil to the screw portion; and a second lubricating oil supply system for supplying lubricating oil to the bearing. A gas-liquid separator for separating the lubricating oil from the discharge gas into which the gas is introduced, a first supply flow path formed in the housing wall, open to the outer surface of the housing wall, and communicating with the screw chamber; A first supply passage connected to the lubricating oil storage area of the gas-liquid separator and the opening of the first supply passage, and the second lubricating oil supply system is formed on the lubricating oil storage tank and the housing wall A second supply passage that opens to the outer surface of the housing wall and communicates with the bearing chamber, a second supply passage that is connected to the lubricating oil storage tank and the opening of the second supply passage, and the housing wall Formed on the outer surface of the housing wall. A first discharge passage for, and a lubricating oil storage tank and a discharge passage connected to the opening of the first discharge passage.