CN2355219Y

CN2355219Y - Household heating furnace

Info

Publication number: CN2355219Y
Application number: CN 98233104
Authority: CN
Inventors: 惠世恩; 杨耀田; 窦文宇
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 1998-10-29
Filing date: 1998-10-29
Publication date: 1999-12-22
Anticipated expiration: 2008-10-29

Abstract

The utility model relates to a household heating furnace, comprising a furnace chamber and an annular flue, wherein the annular flue is arranged on the upper part of the furnace chamber; a heating furnace is arranged in the middle of the annular flue; the furnace chamber adopts Venturi design; the lower part of the furnace chamber is a tapered section; the upper part of the furnace chamber is an enlarged section; counterclockwise sloping guide slots are uniformly arranged around the furnace chamber. The utility model has the advantages of small size and clean combustion.

Description

The domestic heating stove

The utility model belongs to field of combustion technology, further relates to a kind of domestic heating stove.

Domestic burners than extensive use mainly contains at present: honeycomb briquette domestic burners and bulk coal-fired domestic burners two big classes.Honeycomb briquette stove is mainly used in family's kitchen and indoor heating, but this stove mainly comes air in the heating clamber by the heat radiation of stove itself and stovepipe in when heating, and efficient is low, and the air drying is less economical.Bulk coal-fired domestic burners is mainly used in small city and rural area, and effect also is kitchen and heating, still dispels the heat by furnace stack during heating and heats room air, and simultaneously, above-mentioned honeycomb briquette domestic burners pollutes also very serious.The above-mentioned two kinds of stoves of also favourable usefulness directly add water jacket simply and carry out indoor heating, but do not take all factors into consideration from water circulation, burning, heat transfer aspects because of it, so its effect is all very poor.

The utility model purpose is to overcome the defective of above prior art, and a kind of domestic heating stove that adopts double water jacket and rotating fins is provided.

The utility model comprises burner hearth, the ring smoke passage, and the ring smoke passage is positioned at upper furnace, is the heating lid in the middle of the ring-type exhaust gases passes.Burner hearth adopts the venturi design, and the burner hearth upper part is a divergent segment from down to up, and the burner hearth lower part is a converging transition from down to up, evenly is furnished with the guiding gutter that vertically tilts counterclockwise around the burner hearth.Whole lower furnace portion does not have moving grate to reach at dustpan, be furnished with outer water jacket cylindrical shell between burner hearth cylindrical shell and the outside heat-insulation layer, be furnished with inner water sleeve cylindrical shell and outer water jacket cylindrical shell on the annular cigarette channel inner and outer wall of upper furnace, interlaced arrangement has rotating fins between ring smoke channel outer wall and the inwall, every fin is in tilted layout counterclockwise, the ring-type exhaust gases passes is provided with fire-sealing ring, and whole stove top is provided with bell.

Accompanying drawing 1 is the structural representation of heating stove.

Accompanying drawing 2 is the A-A profile of heating stove.

Below in conjunction with accompanying drawing the utility model is described further.

The utility model comprises burner hearth 11 and ring-type exhaust gases passes 15, ring-type exhaust gases passes 15 is positioned at the top of burner hearth 11, is provided with heating lid 7 in the middle of the ring-type exhaust gases passes 15, and burner hearth adopts the venturi design, burner hearth 1 lower part is a converging transition from down to up, and upper part is divergent segment from down to up.Evenly be furnished with the guiding gutter 14 that vertically tilts counterclockwise around the burner hearth 11.Burner hearth adopts well-designed venturi structure.Wherein converging transition is main by radiation again, and diffuse reflection is the mode of assisting, and radiant heat that high temperature anthracite layer is emitted and part flame radiation heat are effectively, the concentrated area is delivered on the fresh coal seam, make coal cinder heat up rapidly, catch fire, and it is also referred to as radiant section.This structure is even more important to not fire-hazardous anthracite.The divergent segment that matches with converging transition is the hot flow of flue gas in rationalization's burner hearth then, make flue gas take advantage of a situation and enter flue between inside and outside water jacket once going out converging transition, flow resistance is very little, so this heating stove does not need very high chimney just can reach and exerts oneself, reduced taking up room of stove, user installation is very convenient; Guiding gutter has mainly acted on: when a flue gas flows in guiding gutter, can produce rotation, so both prolonged mobile stroke and the time of staying of flue gas in stove, the disturbance that has strengthened various composition gases in the burner hearth again with mix, make fuel gas and suspension soot particle obtain further after-flame, it is obvious to eliminate the flue dust effect, especially more outstanding when using the high bituminous coal of fugitive constituent; The coal that b is strong to coking capacity, because of it very easily forms piece in the coal seam surface plate, so increased the coal seam resistance, the circulation of air difficulty, influence burning of coal and after-flame, and the existence of this guiding gutter can make then air flow smoothly, and make air even, improved the combustion position in coal seam along the coal seam surface distributed.

Burner hearth 11 bottoms are provided with moving grate 13 and garbage container 1.Be furnished with outer water jacket cylindrical shell 3 between flue cylindrical shell 4 and the outside heat-insulation layer 2, be furnished with inner water sleeve cylindrical shell 6 and outer water jacket cylindrical shell 3 on logical 15 inner and outer walls of the ring smoke on burner hearth 11 tops, interlaced arrangement has rotating fins to be in tilted layout counterclockwise between ring smoke passage 15 outer walls and the inwall.Design has seal ring 9 on the ring smoke passage.Whole stove top is provided with bell 8.

Common heating stove is only used the individual layer water leg, thereby exhaust gas temperature height and volume are big, and efficient is very low.After adopting the double water jacket structure, under the same situation of furnace height, its heating surface area can reach more than 1.6 times of common heating stove, and the thermal efficiency greatly improves.And, in order further to strengthen the heat exchange in the flue that flue gas forms between inside and outside double water jacket, in flue, evenly arranged staggered fin, it be inclination counterclockwise.Studies show that adopt the postpone of this kind cloth, fume side exothermic coefficient α increases substantially, and flue gas resistance increases not quite, otherwise, either the flue gas circulation is not smooth, or the augmentation of heat transfer effect is not obvious, has influenced the normal operation of heating stove.The water outlet exit pipe 10 of last inner water sleeve cylindrical shell 6 and outer water jacket cylindrical shell 3.

The utility model supports the use take coal as fuel, with radiator, carries out heating. It has that efficient height, quick combustion, volume are little, clean hygiene, the advantage such as elegant in appearance. Suitable And in heating such as cities and towns grange, school, subsection, hotels, cook.

Claims

1. domestic heating stove, it comprises burner hearth, ring smoke passage, it is characterized in that described ring smoke passage is positioned at upper furnace, be the heating lid in the middle of the ring-type exhaust gases passes, burner hearth adopts the venturi design, the burner hearth lower part is converging transition from down to up, and upper part is a divergent segment from down to up, evenly is furnished with the guiding gutter of counterclockwise inclination around the burner hearth.

2. domestic heating stove according to claim 1 is characterized in that described not shape exhaust gases passes inner and outer wall respectively is furnished with inner water sleeve cylindrical shell and outer water jacket cylindrical shell, and interlaced arrangement has rotating fins between the inner and outer wall, and every fin is in tilted layout counterclockwise.