WATER HEATING PLANT Russian patent published in 1997 - IPC

FIELD: heating systems and hot water supply systems mainly in farming. SUBSTANCE: plant includes hot-water boiler with water jacket and furnace provided with hot gas circulating loop with centrifugal hot gas cleaner mounted in it, smoke exhauster and damper and hot gas recovery unit which includes contact condensate heat exchanger, condensate circulating loop and water-to-water heat exchanger for heating the heating-system water. Centrifugal cleaner is provided with cooled cylindrical housing fitted with water jacket, tangential hot gas supply branch pipe fitted in upper portion of housing and connected with upper portion of furnace, recirculating hot gas return branch pipe fitted in lower portion of housing and axial branch pipe for discharge of cleaned hot gases which is connected to inlet of recovery unit. Heating-system water enters water jacket of centrifugal cleaner and then it flows to water jacket of hot-water boiler through water-to-water heater, Centrifugal cleaner may be provided with liquid phase receiver connected to lower portion of cylindrical housing. Hot gas circulating loop may be provided with air supply ports to supply air to hot gases being returned; housing is provided with smoke exhauster embracing its shaft. EFFECT: reduction of toxic agents in burning household rubbish, peat and wood wastes. 3 cl, 2 dwg