Patent ID: 6149408
Filing Date: 2000-11-21
Classification: F04C

Abstract:
A compressor system for use with fluid flows to create essentially liquid-free flows, comprising,a rotary screw compressor having:(i) an inlet port for receiving a low pressure gas stream,(ii) a main lubrication injection port for receiving a first lubrication stream,(iii) an inlet bearing lubrication port for receiving a second lubrication stream,(iv) a discharge bearing and seal lubrication port for receiving a third lubrication stream,(v) a prime mover for powering the rotary screw compressor, and(vi) a discharge port for discharging a high pressure compressed gas mixture from the compressor;a separator for receiving the compressed gas mixture from the compressor, wherein the separator further consists of at least a primary coalescer means and a secondary coalescer means connected in series, wherein the primary coalescer means is smaller in surface area than the secondary coalescer means, and wherein the primary coalescer means causes very small liquid particles to become larger liquid particles when passed through the primary coalescer means at a rate which entrains the liquid particles, and then flowing the entrained liquid particles through the secondary coalescer means at a rate which forms a resulting gas; then separating the resulting gas from the entrained liquid particles, and discharging the separated gas as a high pressure gas stream and a high pressure lubrication stream;a first splitter for dividing the high pressure lubrication stream into a first flow and a second flow;a cooler for receiving the first flow of the high pressure lubrication stream and cooling the first flow into a cooled flow;a thermostatic device for receiving and mixing the cooled flow and the second flow creating a mixed flow; anda filter for filtering the mixed flow creating a filtered flow.