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

FIELD: heating.

SUBSTANCE: method of impure sewage water heat utilisation and preparation of hot coolant by means of sewage water heat utilisation, on the one hand, as a result of intermediate coolant heating by 6-9°C in heat exchanger immersed into header of main flow under the level of sewage water, on the other hand, as a result of heating system water heating in condenser of heat pump up to the temperature based on temperature schedule, but not exceeding 50-55°C, at which the highest transformation ratio is provided, as well as more efficient operation of heat pump installation together with traditional source of heat supply. At that mode of intermediate heat exchanger surface washing is organised so that flow rate of sewage water amounts to the volume, when sewage water cooling takes place at the level of 1°C. Optimal geometric parameters of intermediate heat exchanger modules are selected, as well as their location in the main flow of sewage water, which provide such flow rate of sewage water through the modules of intermediate heat exchanger, at which intense heat supply is provided to intermediate coolant with its heating by 6-9°C.

EFFECT: increase of heat supply efficiency.

3 cl, 1 dwg