| 摘要 |
FIELD: heating systems and hot water supply systems for dwelling-houses in country-side. SUBSTANCE: water heating plant has hot-water boiler with water jacket and furnace provided with hot gas circulating loop with centrifugal hot gas cleaner, smoke exhauster and register; plant is also provided with hot gas heat recovery unit containing contact condensate heat exchanger, condensate circulating loop and water-to- water heat exchanger for heating the heating-system water. Centrifugal cleaner has cooled cylindrical housing with water jacket, tangential branch pipe for supply of hot gases in upper portion of housing connected with upper portion of furnace, recirculating branch pipe for return of hot gases to furnace in lower portion of housing and axial branch pipe for discharge of cleaned hot gases connected to inlet of recovery unit. Heating-system water enters water jacket of centrifugal cleaner and then 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 ports to supply air to hot gases being returned. Ports are made in smoke exhauster housing embracing its shaft. EFFECT: reduction of ecologically toxic agents at plant outlet in burning moist fuels - domestic garbage, peat and waste lumber. |
