METHOD OF HOT WATER PREPARATION IN HEAT STATION OF CLOSED HEAT SUPPLY SYSTEM Russian patent published in 2000 - IPC

FIELD: heat supply. SUBSTANCE: method of hot water preparation comes to the following: in cold seasons of year, when heating system feed water temperature is maintained within 100 and 150 C. Part of deaerated hot water, heated additionally by heating system feed water in additional heater, is delivered into vacuum deaerator to serve as heating agent, and in warm seasons of year, when heating system feed water temperature is maintained within 70 and 100 C, vacuum deaeration is carried out under cold deaeration conditions, without delivering heating agent into deaerator. In this case deaerated hot water is passed through deoxygenating electronic ion-exchange filter before supplying this water to consumers. EFFECT: enhanced quality of hot water preparation in heat stations of closed heat supply systems, reduced internal corrosion. 1 dwg, 1 ex