METHOD OF UTILISATION OF IMPURE SEWAGE WATER HEAT AND PREPARATION OF HOT COOLANT Russian patent published in 2008 - IPC F24H4/00 

FIELD: heating.

SUBSTANCE: in method of utilisation of impure sewage water heat and preparation of hot coolant by means of sewage water cooling, heating of intermediate coolant in immersed heat exchanger and further heating of heating-system water in heat pump condenser up to certain temperature based on heating schedule, at that sewage water is supplied from collector of sewage water through intake device into flow buffer reservoir, where it is cooled by 2-3°C, and intermediate coolant is heated by 5-8°C, which is later supplied into heat pump evaporator. With the help of heat pumps low potential heat of water channel system sewage water is involved in the process, and optimal temperature parameters of heat pump coolants are selected for operation in autonomous and combined modes of heat supply.

EFFECT: increase of heat supply efficiency.

3 cl, 1 dwg