RADIANT BURNER Russian patent published in 2014 - IPC F23D14/12 

FIELD: heating.

SUBSTANCE: invention relates to devices for the generation of heat and infrared radiation and can be used in various home appliances and production processes for heating and drying, including those purposes implying the usage of low-calorific fuel, for example, biogas, as well as for reforming of hydrocarbon gases. A radiant burner comprises a casing with an annular cover, a hollow radiating cap piece made from the material being permeable to gas and being set in the casing, and a system for the supply of air-fuel mixture including a cavity for the dispensing of the air-fuel mixture. The radiating cap piece is made in the form a three-dimensional matrix permeable to gas, and the air-fuel mixture supply pipeline is partially set inside the matrix cavity and connected to the fuel dispensing cavity. The matrix cavity in its cross section is of polygonal, circular or ellipse shape. The matrix is made from perforated ceramics, metal mesh, pressed metal wire, wire gauze, foamed metal. The matrix cavity height exceeds the maximal dimension of its cross section. The air-fuel mixture supply pipeline is fitted by a heat exchanger set inside the matrix cavity. The heat exchanger is made as a coiled pipeline set coaxially to the inner surface of the matrix cavity. The air-fuel mixture supply pipeline is fitted by a heat exchanger set above the matrix cavity which is closed on its top by a cover permeable to gas.

EFFECT: technical result consists in the fact the both very rich and very lean fuel mixtures can be used as well as in reduced emissions of NO_x into the atmosphere.

7 cl, 4 dwg