BOILER PLANT FOR OPEN-TYPE HEAT SUPPLY SYSTEM Russian patent published in 2000 - IPC

FIELD: heat supply systems. SUBSTANCE: boiler plant of open-type heat supply system includes steam boilers with steam line connected to it, check valve and supply pipe lines, vacuum deaerator with starting water pipe lines, heating agent and deaerated water; last of them is connected with return pipe line; plant is also provided with starting water preheater and make-up pump connected to deaerated water pipe line. Deaerated water pipe line is also provided with deaerated water preheater- disinfector mounted between vacuum deaerator and starting water preheater; its heating line is connected to steam line of boilers. EFFECT: possibility of thermal disinfection of deaerated make-up water; enhanced economical efficiency of boiler plant. 1 dwg