GAS-DISTRIBUTION STATION AND USAGE OF PRESSURE DIFFERENTIAL IN REDUCING UNIT OF GAS-DISTRIBUTION STATION Russian patent published in 2004 - IPC

FIELD: gas-distribution systems. SUBSTANCE: gas-distribution station includes inlet and outlet pipe-lines, technological compartment, change-over compartment, reducing unit, unit measuring flow rate of gas, gas cleaning unit, gas heating compartment, odorization system and technological pipe-lines, by-pass system and signalization unit of emergency warning with boiler to prepare and supply heat transfer agent into gas heating compartment. Gas cleaning unit includes at least one filter- separator with filtering element and expansion chamber with vortex generator, condensate automatic drain system and stand-by cleaning line. Gas heating compartment has gas heater. Expansion chamber is provided with cone-shaped partition placed perpendicular to axial line of body. Reducing unit is provided with by-pass reducing line. Odorization system is fitted with unit controlling odorant filling and reserve odorant vessel. In correspondence with method utilizing pressure differential turbo-expander set generates electrical energy fed into electric water heater installed in circulation system of heat transfer agent. Gas of reduced pressure is supplied after of turbo-expander to outlets of gas distribution station. EFFECT: expanded limits of rated efficiency, reliability, transportability, raised degree of gas cleaning. 30 cl, 5 dwg