SCREW COMPRESSOR PLANT Russian patent published in 2019 - IPC F04C18/16 F04C29/02 

FIELD: machine building.

SUBSTANCE: invention relates to a screw compressor plant intended for compression of hydrocarbon gases. Proposed system comprises oil return line 22 to oil separator 8 with control valve 23. Valve 23 is configured to perform automatic adjustment of the amount of oil release in line 22 according to readings of measuring device 7 of temperature of gas-oil mixture, installed on delivery pipeline 6 in front of oil separator 8. Oil pumps 13 are installed at the beginning of two separate lines of oil supply to compressor 2. At line 24 oil is supplied into working cavity 3 of compressor 2, and along line 25 – to bearings, seals 4 and hydraulic cylinder 5 of slide valve of compressor 2. Line 24 is equipped with pressure and temperature measuring devices 32 and flow rate indicator 29, shutoff and control valves, pressure relief valve 28. On line 25 of oil supply to bearings, seals 4 and hydraulic cylinder 5 flow indicator 29 and pressure measuring devices 32 is installed. Pipeline 6 is connected via pipeline, on which normally closed valve is installed, with line 24.

EFFECT: invention is aimed at ensuring uninterrupted operation of the plant under complicated conditions based on parameters of pumped gas.

6 cl, 1 dwg, 1 tbl