HEAT-GENERATING UNIT (VERSIONS) Russian patent published in 2010 - IPC F24H1/00 

FIELD: heating systems.

SUBSTANCE: invention is intended for water heating and can be used in heat engineering. Unit includes heat exchanger with housing, the inner cavity of which is filled with heating liquid, and heat exchange element for heated liquid, which is located in heat exchanger housing, boiler unit, combustion chamber with housing installed in a longitudinal direction in boiler unit body thus forming between the latter and combustion chamber housing an annular heat exchange cavity, spiral heat exchanger installed in annular cavity, and water supply head piece installed in upper part of boiler unit body. Heat exchanger is installed under boiler unit and its upper part is connected to lower part of boiler unit so that upper part of inner cavity of heat exchanger housing is interconnected with combustion chamber of boiler unit. Spiral heat exchanger serves for heating the liquid supplied with circulation pump to water supply head piece. In upper part of combustion chamber housing there is a through hole in which there arranged is water supply head piece directed tangentially to combustion chamber housing. Upper end of head piece is located in upper part of boiler unit body with edge gap relative to the cover of the latter. In upper part of boiler unit body, above combustion chamber, there can be installed water vapour condenser and at least one water supply head piece. Each water supply head piece can be installed so that the liquid leaving it can flow to combustion chamber of boiler unit. Water vapour condenser is made in the form of closed hollow body converging downwards and installed above gas burner with radial gap in relation to boiler unit body. Hollow body is provided with condensate receiver installed under it and equipped with drain line the outlet of which is interconnected with inner cavity of heat exchanger. Inner cavity of hollow body is interconnected with outlet of circulation pump. Each water supply head piece is fixed in upper side part of the above hollow body, connected to outlet of circulation pump through inner cavity of hollow body and directed tangentially to boiler unit body. When designing boiler unit with several water supply head pieces, the latter are located relative to boiler unit body with possibility of ensuring movement of liquid leaving the above head pieces along inner wall of boiler unit body in one direction.

EFFECT: invention provides increase in efficiency of unit, simplifying the design, manufacturing and operation, reducing weight, overall dimensions and cost of unit and increasing ecological safety of unit.

41 cl, 16 dwg