INSTALLATION FOR PREPARING IMPULSE GAS FOR PNEUMATIC SYSTEMS OF CUTTING OFF AND ADJUSTING DEVICES OF MAIN GAS DUCTS Russian patent published in 2003 - IPC

FIELD: transportation of natural gases through pipelines, namely apparatuses for preparing impulse gas used in pneumatic drives of cutting off and adjusting devices in pumping gas-compressor stations, gas distributing stations, underground gas storages and other objects. SUBSTANCE: installation includes water and oil separator placed in the same housing with intermediate filter. Outlet of water and oil separator is communicated with blowing vessel through pneumatically controlled valve whose pneumatic drive is connected with pipeline of unloading system of unit for drying and scrubbing gas in zone between throttling washer and cut-off valve. Cut-off valves at inlet of adsorbers are pneumatically driven ones. Outlet of first adsorber is connected with pneumatic drive of cut-off valve of second adsorber. Outlet of second adsorber is connected with pneumatic drive of cut-off valve of first adsorber. EFFECT: enhanced effectiveness, improved operational reliability of gas distributing station. 5 cl, 4 dwg