WATER HEATING DEVICE Russian patent published in 2012 - IPC F24H1/10 F24H1/50 

FIELD: power industry.

SUBSTANCE: water heating device includes a tank with bottom and cover plate. In the above tank there installed is at least one vertical combustion chamber, liquid supply and discharge connection pipes, and discharge opening for combustion products, which is made in the cover plate. Device includes central cavity and intermediate cavity adjacent to side wall of the tank, cavities restricted with walls. Cavities are interconnected with liquid supply connection pipe. Spraying openings are located in upper part of walls of cavities. Combustion chamber has a gap between lower edge and bottom of the tank, concentrically between central cavity and cavity adjacent to the tank wall. Igniting through openings are located in lower part of the chamber wall, below initial water level in the tank. Burners are connected gas-dynamically to air and gas headers and uniformly built in upper edge of annular combustion chamber. Openings in upper part of walls of cavities, which are interconnected with liquid supply connection pipe, are directed towards external and internal walls of combustion chamber.

EFFECT: invention allows increasing specific heat removal from fuel combustion products at provision of smooth start-up.

3 cl, 2 dwg