DEVICE FOR COOLING AND RECOVERY OF HEAT FURNACE WASTE GASES Russian patent published in 1997 - IPC

FIELD: metallurgy, chemical industry, heat and power engineering; recovery of heat of chemical processes including removal of hot gases from reactor. SUBSTANCE: device has furnace cooled steel body and waste-heat boiler connected with steam-water loop equipped with steam generator, steam turbine plant, feed pump and steam-water pipe lines. Furnace is connected with steam-water loop by means of liquid metal heat-transfer agent circulating loop. In let of heat exchange surfaces of furnace body is connected with steam generator by means of liquid metal heat-transfer agent pipe lines through heat-transfer agent forced circulation pump. Cooling devices of gas exhaust line are made in form of high-temperature and low-temperature heat exchangers located in series after the furnace and connected by means of gas ducts; these heat exchangers are also connected with liquid metal heat transfer agent circulating loop by means of pipe lines. EFFECT: enhanced efficiency. 6 cl, 1 dwg