IMPROVEMENT OF PERFORMANCE FOR SUPERHIGH PRESSURE DIAPHRAGM COMPRESSOR

摘要

The service life of the diaphragm on the diaphragm compressor is affected to a large extent by the liquid-gas pressure differential across the diaphragm. When the differential goes overhigh, it will lead to the damage of diaphragm. This problem is especially severe for superhigh pressure diaphragm compressor. The present article introduces a new type of automatic pressure regulating valve for superhigh pressure diaphragm compressor. This valve can keep the liquid pressure under the diaphragm going up and down along with the increasing and decreasing of the compressor discharge pressure. Meanwhile it can maintain the liquid pressure slightly higher than the gas pressure so as to minimize the destruction caused by the excessive liquid-gas pressure differential.