SPARK ARRESTER FOR FURNACES (VERSIONS) Russian patent published in 2016 - IPC A62B99/00 

FIELD: agriculture.

SUBSTANCE: invention relates to domestic and agriculture needs, in particular, to means of ensuring baths furnaces additional fire safety, fireplaces in cottages, potbelly stoves in tents, in calf hutches on farms with small forms of management both inside rooms and on roof. Technical result is achieved by fact that spark arrester inlet and outlet pipes are shifted in vertical plane along length of its housing, on its top and bottom surfaces, which is made in form of rectangular box with width of not more than 1/4 of its length, wherein spark arrester housing by bottom branch pipe is installed directly on furnace output neck, and on its upper branch combustion pipe with damper in form of flat or round gate is installed, wherein for intensive spark extinguishing and stable, uniform flame trapping, inside box, to its outer end walls are welded, respectively, at least two shortened horizontal plates, which form in box at least three rectangular channels in form of air ducts, for transportation of combustion flame and hot flue gases from furnace, which at their movement in horizontal plane are make alternately respectively, at least four successive rotations in 90°, 180°, 180° and 90° in vertical plane, which stabilizes output of flue gases and eliminating direct heating of entire furnace pipe. In another version technical result is achieved due to, disclosed is proposal to locate spark arrester inlet and outlet branch pipes, without their displacement in vertical plane along length of its housing, on top and bottom surface respectively, and inside box to its outer end walls not less than three shortened horizontal plates are welded, which, at that, form in box at least four rectangular channels in form of air ducts, for transportation of combustion flame and hot flue gases from furnace, which at their movement in horizontal plane are make alternately respectively already at least five consecutive turns in 90°, 180°, 180°, 180° and 90° in vertical plane, which improves stabilization of flame flow and outlet of incandescent flue gases and faster eliminating direct heating of entire furnace tube, since in this time accelerated heating of all walls of rectangular box and stones takes place, which are placed around it and from above, wherein additional heating of air in room is conducted, as well as conditions of fire safety are improved both inside rooms and on roof.

EFFECT: providing baths furnaces, fireplaces in cottages additional fire safety, potbelly stoves in tents, in calf hutches on farms with small forms of management both inside rooms and on roof.

2 cl, 2 dwg