HEATING BOILER (VERSIONS) Russian patent published in 2024 - IPC F24H1/38 

FIELD: heat engineering.

SUBSTANCE: heating boiler comprises a combustion chamber formed by the walls of the housing, in the lower part of which there is an ash bin having a discharge opening with a flap, each side wall of the housing is interfaced with an inlet manifold, at that, the housing side wall at the interface with the inlet manifold has a perforation, which is the inlet manifold outlet holes, which is located under the grate, gas duct is connected by its inlet to the gas movement device, and also contains a branching, which divides it into two channels, at that, each channel of the gas duct has shutoff valves, one of the channels of the gas duct is connected to the inlet manifolds, and the other channel of the gas duct is connected to a grate consisting of hollow elements of rolled metal, connected to each other, wherein the grate comprises an air supply branch pipe for combustible gases afterburning, the outlet of which is located at an angle to the flue-heat exchanger, which contains an inner pipe located in the cavity of the outer pipe, wherein space between inner and outer tubes has baffle with solid helical surface along lengthwise axis of inner and outer tubes. Besides, in the cavity of the internal pipe of the flue-heat exchanger there can be arranged heat exchange tubes forming with the space between the internal and external pipes a single volume, the ends of which are located between the turns of the baffle.

EFFECT: reduction of heating time of heat carrier used for room heating, reduction of labour intensity of boiler cleaning from fuel combustion products, provision of efficient fuel consumption and its complete combustion, as well as complete combustion of combustible gases in furnace chamber.

2 cl, 10 dwg