METHOD OF SUSTAINED GAS SUPPLY BY GAS DISTRIBUTION STATION WITH POWER-REFRIGERATING COMPLEX USING NATURAL GAS OVERPRESSURE ENERGY TO PRODUCE ELECTRIC ENERGY AND COLD AND SYSTEM FOR METHOD IMPLEMENTATION

摘要

FIELD: mechanical engineering, gas distribution.;SUBSTANCE: group of inventions relates to heat and power engineering and is goaled for the application in the means of using energy of natural gas operational pressure differential. Method of supplying natural gas to consumers by a gas distribution station (GDS) with reducing lines implies simultaneous production of electric energy and cold during reduction with the usage of a power and refrigerating unit (PRU) which is switched on parallel to the GDS. PRU is equipped by an expansion-generation aggregate (EGA) with a heat exchanger. Automatic units for opening/closing of GDS reducing lines synchronously with EGA switching on/off are mounted at the reducing lines to provide for interconnected functioning of GDS and PRU as a unite gas-reducing system with keeping total section of its elements for gas passing in case of changes in gas supply mode, input gas pressure and number of operating EGA. In case of closing all reducing lines the GDS is put into reserve, gas input into the GDS collector and gas output are blocked by controlled shut-off valves. In case of PRU or most of EGA stop the above shut-off valves and GDS reducing lines are opened providing for standard GDS operation.;EFFECT: increasing stability of the time variable of supplying gas to the consumers along with keeping specified gas pressure and allowable temperature at the system output.;14 cl, 2 dwg