METHOD OF HEAT SUPPLY Russian patent published in 1994 - IPC

FIELD: steam heat supply system of heating-and-power stations. SUBSTANCE: steam is delivered from the turbine into a steam duct then into the User's heat exchanger of hot water supply. Then cold water is delivered from the User's inlet of water mains into piping and heat exchanger and further into hydrants. Condensate is returned from the heat exchanger through the User's condensate duct into collecting condensate duct and thence to the station. Cold water taken from the User's inlet of the water mains is heated in advance in additional heat exchanger connected by heat carrier line to the User's condensate duct. Heated water is directed in parallel into the User's heat exchanger and cold water hydrants through main cold water pipes. Water temperature in pipes is maintained above the dew point temperature. EFFECT: higher efficiency. 1 dwg