CN2206901Y - Air-return eliminating-smoke energy-saving combustion apparatus - Google Patents

Abstract

The utility model relates to an air-return eliminating-smoke energy-saving combustion apparatus, comprising a stove basin and a stove cover, wherein, the stove basin is composed of a reverse covered circular table-shaped sandwich type basin wall composed of an outer wall with air inlets and an inner wall with ventilation holes and a grate type basin bottom which is provided with a ventilation plate and a grid plate and connected with the basin inner wall. The stove cover is also an open type ring body composed of an outer wall with air inlets and an inner wall with ventilation holes and provided with a sandwich layer. The apparatus with the advantages of simple structure, low cost, good smoke eliminating effect and energy conservation uses solid fuel for burning.

Description

Air-return eliminating-smoke energy-saving combustion apparatus

The utility model relates to a kind of solid fuel ignition equipment, is applicable to that the collectiveity canteen of office, school, factories and miness and the brick kitchen range and the miniature boiler of catering and serving trade use.

At present, the brick kitchen range that collectiveity canteen and catering and serving trade use is still traditional brasero, and a large amount of black smoke of can emerging when coal combustion or other solid fuel had not only wasted energy but also contaminated environment.Although some department carried out research to brick kitchen range, taked some corrective measures, fundamentally be not resolved, it is slow still to exist the speed of getting angry, and fume amount is higher, and the thermal efficiency is low, and complex structure, and problems such as cost height cause and can not promote.

The purpose of this utility model provides a kind of simple in structure, and is cheap, and smoke effect is good, the solid fuel burner tool of energy savings.

The purpose of this utility model is achieved in that this device comprises stove basin and bonnet, wherein, the stove basin have by inverted round table shape air inlet outer wall and the band wind distributing hole inwall sandwich-type tub wall that constitutes and the comb formula basin that links to each other with the basin inwall that constitutes by ventilating board and air distribution plate at the bottom of form.Bonnet also is the open type ring bodies with dissection that is made of outer wall that has air inlet and the inwall that has wind distributing hole.

Because the utility model adopts inverted round table shape stove basin and open type annular bonnet to form.The stove basin is a fuel combustion chamber.By the fire grate that ventilating board and air distribution plate are formed, fire grate has the cover plate that keeps out the wind that can extract out, the space that forms with fire grate on it, be air compartment be again grey chamber.Bonnet is the smoke combustion chamber, and the interlayer between the bonnet inside and outside wall is a secondary air chamber, also is furnished with fresh air inlet on its inwall.So fuel is dropped into when lighting in the stove basin, the fresh air inlet air feed from the stove basin outer wall at first, air enters the air compartment under interlayer between tub wall (air compartment) and the fire grate with the wind, ventilating board and the fresh air inlet on the air distribution plate at the bottom of stove basin inwall, the stove basin enters fuel combustion chamber and fuel mix respectively then, impels full combustion of fuel.Air inlet from the bonnet outer wall is to the secondary air chamber air feed simultaneously, and wind wind distributing hole from the inwall enters the smoke combustion chamber to be mixed with flue gas, makes that uncombusted volatile matter and carbon granule thoroughly burn among the flue gas, reaches the purpose that eliminates smoke and improve fuel availability.Because the exhanst gas outlet of establishing separately is below bonnet, combustion tail gas can not directly be discharged like this, at the bottom of the still effect under to around the diffusion, and generation refluxes in burner hearth, prolonged gas residence time, can with the abundant heat exchange of heating kettle, both sides entered flue through the flue gas mouth again at the bottom of last flue gas compiled still, had realized improving the purpose of stove thermal efficiency.This apparatus structure is simple, is easy to manufacture, and smoke effect is obvious, thermal efficiency height, and processing cost is low, is the desirable utensil of coal-fired cooking stove and miniature boiler.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is a kind of concrete structure schematic diagram of the utility model.

Fig. 2 is the vertical view of Fig. 1.

According to Fig. 1-2 as seen, the utility model mainly is made up of the stove basin 2 of bottom and ring-like bonnet 1 two parts of opening on top.Bonnet 1 and stove basin 2 can be made into split type, also can be made into integral type.Stove basin 2 is inverted truncated cone-shaped, the outer wall 8 of stove basin 2 and the top of inwall 10 all are fixed on the horizontal annular plate 7, and inwall 10 is provided with wind distributing hole, and on the lower edge stationary annular base plate 13 of outer wall 8, the lower edge of inwall 10 is fixed on the annular supporting plate 11, and forming interlayer 9 between the inside and outside wall is an air compartment.Main be contained in the middle of stove basin 2 bottoms and projection has the air distribution plate 19 of wind distributing hole, two ends are fixed on the inwall 10 of stove basin 2, and with interlayer 9 UNICOMs, air distribution plate 19 can be made into herringbone or rectangle and arc.The both sides of air distribution plate 19 are assembled with ventilating board 17, also have wind distributing hole on the ventilating board 17, ventilating board 17 can be herringbone, rectangle or arc, its two ends are connected with annular supporting plate 11 and are fixed on stove basin 2 inwalls 10, and slideway 14 is housed with the both sides under 13 at the bottom of stove basin 2 lower annular, the deep bead 16 of level is housed on it, leaves certain space 18 on the deep bead 16 and between ventilating board 17 and the air distribution plate 19, its be air compartment be again grey chamber.And with basin body interlayer 9 UNICOMs, deep bead 16 can be extracted out, both can be used for ash disposal, for gravity-flow ventilation, does not influence stove and accessory and uses in the time of can having a power failure again.Position at stove basin 2 outer walls 8 corresponding basin base fabric aerofoil 19 1 ends is provided with air inlet, can connect blast pipe 15 on the air inlet, and airduct one end is equipped with air blast, to the stove and accessory air feed.

Top bonnet 1 is by outer wall 6 and inwall 4 perpendicular to horizontal plane, and two ends are separately fixed on the open annular plate 3 of level and the open annular of making that has interlayer up and down, and opening part is by closure plate 20 sealings.The inwall 4 of bonnet has wind distributing hole, and bonnet outer wall 6 is provided with air inlet, and airduct and blower fan air feed are installed.Opening 22 places of cover body are charge door, and interlayer 5 is a secondary air chamber, are the smoke combustion chamber in the bonnet, are lined with refractory material 12 in bonnet 1 and the stove basin 2.

It is brick solid earlier bonnet 1 to be placed on the stove basin 2 (or making one in advance) to use then before using, and on bonnet 1 top with the brick floss hole of building, on again heating kettle being placed.Fuel is dropped into stove basin 2(fuel combustion chambers from the opening part 22 of bonnet 1) in, and it is lighted, blower fan air feed in stove basin 2 opened.Wind distributing hole on air compartment 18, stove basin inwall 10, ventilating board 17 and the air distribution plate 19 of wind under airduct 15 enters stove basin interlayer 9 and basin enters in the combustion chamber and fuel mix, be located at an end of basin base fabric aerofoil 19 because of fresh air inlet, wind is directly entered in the air distribution plate 19, because air distribution plate 19 projections, make fuel distribution on both sides and top, can be in the fuel assembly outside cloth wind, shorten the air feed radius and increase air quantity, impel full combustion of fuel.To secondary air chamber 5 air feeds, wind enters the smoke combustion chamber toward inwall 4 cloth wind, mixes with flue gas, and unburnt volatile matter and powdered carbon are burnt once more then.Tail gas after the burning to diffusion all around, has partial fume to produce simultaneously and refluxes under effect at the bottom of the still, comes together in both sides then and enters flue backward.Because flue gas can not directly discharge, prolonged the time of staying in burner hearth, and can with abundant heat exchange at the bottom of the still, improved the thermal efficiency of stove and accessory.Grey chamber 18(air compartment below falling into the slit of the lime-ash of after-flame between ventilating board and air distribution plate), at last ash is removed in deep bead 16 extractions.

Characteristics of the present utility model are:

1, return air eliminating-smoke energy-saving combustion volume is little, and is simple in structure, and processing cost is low, easy to install;

2, can reach more than 45% for fiery kitchen range, the thermal efficiency;

3, environmental benefit is good, and dust exhausting concentration is at 200mg/Nm³Below, oke exhaust blackness is below 0.5.

4, the following coal that looses inferior burning 15200j/kg(3000 kilocalorie/kilogram).

Claims (4)

1, a kind of air return type fume-eliminating energy-saving burner for cooking brick kitchen range and the use of miniature boiler buring solid fuel, comprise stove basin and bonnet, it is characterized in that: institute forms the stove basin is had inwall the sandwich-type tub wall that constitutes and the comb formula basin that links to each other with the basin inwall that is made of ventilating board and air distribution plate of the outer wall of air inlet and band wind distributing hole by inverted round table shape at the bottom of, and bonnet also is by the outer wall that has air inlet and has the open type ring bodies with dissection that the inwall of wind distributing hole constitutes.

2, fume-eliminating energy-saving burner according to claim 1 is characterized in that: the ventilating board air distribution plate of forming at the bottom of the basin can be lambdoid, rectangle or arc, all have wind distributing hole on it.

3, fume-eliminating energy-saving burner according to claim 1 is characterized in that: face is provided with the cover plate of extracting out that keeps out the wind that connects with stove basin outer wall under the stove basin, and formed space communicates with stove basin interlayer, be air compartment be again grey chamber.

4, fume-eliminating energy-saving burner according to claim 1 is characterized in that: bonnet is assembled on the stove basin, and bonnet and stove basin can be made into split type, also can be made into integral type.

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