METHOD FOR PURIFYING DRAIN WATER AND METHOD FOR MAKING CLOSED LOOP FOR WATER CIRCULATING TYPE COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To provide a method for purifying drain water and a method for making a closed loop for a water circulation type compressor making supply of cooling water (lubricating water) from an outside unnecessary by making a close loop purifying all drain water discharged from the water circulation type compressor and returning the same to a compressor side via a reservoir tank. SOLUTION: All drain water from the compressor is purified through a pure water conversion part 1 which consists of a filter 1a and a purifier 1b and is sent to a reservoir tank 3. Then, pure water accumulated in the reservoir tank 3 is returned to the compressor 2 by head of the reservoir tank 3 (or a water pump). Pure water not necessary in a compressor side is sent to a drain groove 11 as overflow water. COPYRIGHT: (C)2007,JPO&INPIT