FIELD: heat power engineering.
SUBSTANCE: invention relates to heat engineering, to hot-medium boilers operating on gas and liquid fuel for decentralized and individual systems of heating and hot water supply. Condensing boiler consists of the main section with a heating element in the form of a gas burner device with an automatic control device for gas supply and several additional sections arranged vertically. Each section comprises housing, heat exchanger in form of tubular coil and branch pipes. Structure comprises gas burner device for complete premixing of combustible mixture, located in upper part of condensing boiler, several vertically connected vertically downward convection cassettes of heat exchanger located in combustion zone of cylindrical burner, several condensation cassettes of the heat exchanger, which are in series connected downward, located outside the flame zone of the cylindrical burner, a flue discharge the combustion products through the lower part of the vertically arranged boiler.
EFFECT: disclosed is condensing boiler with vertical cassette heat exchanger.
4 cl, 1 dwg
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