| 摘要 |
The invention relates to heat power engineering and can be used in gas-consuming boiler installations. A waste-heat utilization plant has a gas duct connected to boiler unit equipped with gas-burner device and chimney, respectively, there in sequence in direction of flow of smoke gases water heater and evaporator of heat pump are placed, wherein the water heater is arranged as surface one and is connected to consumer of heat with supply pipeline with condenser of heat pump and back pipeline with network pump, with formation of water circulation contour of the system of heat supply, air heater connected with air duct to gas-burner device of boiler unit, heat pump circulation circuit of which includes arranged in sequence in direction of flow of working medium throttle valve, evaporator, compressor, condenser and cooler of condensate, this is arranged as a heat exchanger for two media and is placed in gas duct between the evaporator and the chimney, and air heater is included to back pipeline between the consumer of heat and network pump. The invention provides increase of thermal productivity of installation due to increase of degree of air heating and increase or its thermal effectiveness due to increase of level of smoke gases cooling. |
