CN204006146U - A kind of dual-purpose domestic briquet stove of clean and effective - Google Patents
A kind of dual-purpose domestic briquet stove of clean and effective Download PDFInfo
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- CN204006146U CN204006146U CN201420427421.8U CN201420427421U CN204006146U CN 204006146 U CN204006146 U CN 204006146U CN 201420427421 U CN201420427421 U CN 201420427421U CN 204006146 U CN204006146 U CN 204006146U
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- burner hearth
- district
- fire grate
- dual
- secondary air
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Abstract
The utility model provides a kind of dual-purpose domestic briquet stove of clean and effective, comprises burner hearth (5), fire grate (22); Described burner hearth (5) is divided into burner hearth one district (5a) and burner hearth 2nd district (5b) with chimney arch (2); The height of described chimney arch (2) is the 1/4-4/5 of burner hearth (5) height; From 1 or many first secondary air channels (6) are set to burner hearth 2nd district (5b) near fire grate (22), combustion-supporting in order near hot-air fire grate is introduced to burner hearth 2nd district; Separately from shell to burner hearth 2nd district (5b), 1 or many second secondary air channels (30) are set, combustion-supporting in order to outside air is introduced to burner hearth 2nd district.The second secondary air channel (30) arranges by-pass cock.The utility model coal stove volume is little, energy-efficient, is convenient to install and use, and can increase substantially the thermal efficiency, reduces the discharge capacity of the pollutants such as flue dust, oxynitrides and carbon monoxide.The heat of its generation both can be used for cooking, and can be used for again providing family's heating or hot water for life.
Description
Technical field:
The utility model relates to a kind of domestic briquet stove, and specifically belonging to one, to have pollutant discharge amount little, the dual-purpose domestic briquet stove that the thermal efficiency is high.
Background technology:
Chinese countryside and urban households are used coal stove comparatively extensive.How improving efficiency of combustion, reduce dust and other pollutants in domestic briquet stove flue gas, as the discharge of oxynitrides, carbon monoxide, sulfur dioxide etc., is the key of pollutions, raising air quality of controling environment.
Existing domestic heating, the heating hot water of boiler for dual purpose of cooking is by interlayer flue substantially, fire grate contacts heating with burner hearth thermal source, see with regard to improving one's methods of boiler for dual purpose, increase fire grate to stone or metal plate for standing a stove on as a precaution against fire spacing (as patent 89221570.4), or by increase contractible neck (as patent 94203126.1) at crater place, coal stove top, or by increasing flue gas apotheca, around the first storage smoke-box, arrange that spiral flue is to the second storage smoke-box (as patent 200720025961.3), increase maximum heating surface area, make heat exchange more abundant, the boiling water of cooking can obtain high calorific value.But still there is the limited defect of heat utilization ratio in these boilers, and the discharge of its cigarette ash and gas pollutant is not well controlled.
Most of boilers are all to adopt air blast to blow a large amount of Secondary Airs to body of heater to strengthen burning, and reduce the discharge (as patent ZL 200720080513.3) of black smoke.Although this design has promoted burning, do not reduce the discharge of oxynitrides etc., on the other hand, if secondary air flow is too large, the coal cinder too fast meeting of burning causes waste.In addition, in being used, family adopt air blast cost too high.
The proof coals such as Chinese patent ZL200820077007 can produce some reducibility gas by destructive distillation, as CmHn (hydrocarbon such as methane), NH
3, H
2, oxynitrides can be reduced to N
2.Document (Yin Yanshan, Zhang Jun, Sheng Changdong; The dynamics research of coal tar absorption and reductive NO; Chemistry of fuel journal; 07 phase in 2011) report that semicoke also has reduction to oxynitrides.But these technology are not applied to dual-purpose domestic briquet stove so far.Chinese patent 201220194442 has been invented a kind of thermal efficiency up to 75% cooking-heating dual-purpose stove, but its energy-saving and emission-reduction performance need to improve, and the problem that the coal cinder that especially volatile matter content is high produces black smoke at burning initial period waits to solve.
Summary of the invention:
The purpose of this utility model is to provide a kind of dual-purpose domestic briquet stove of clean and effective.This coal stove can be applicable to Coal rank, improves significantly the discharge of the thermal efficiency, reduction flue dust and gas pollutant.The heat producing both can be used for cooking, and can be used for again providing family's heating or hot water for life.
The purpose of this utility model is achieved in that a kind of dual-purpose domestic briquet stove of clean and effective, comprises shell, base, observation door, burner hearth, fire grate, burner lid, chimney etc.; Described burner hearth is divided into burner hearth one district and burner hearth 2nd district with chimney arch; The height of described chimney arch is the 1/4-4/5 of furnace height; From 1 or many first secondary air channels are set to burner hearth 2nd district near fire grate, combustion-supporting in order near hot-air fire grate is introduced to burner hearth 2nd district.
Also can separately from shell to burner hearth 2nd district, 1 or many second secondary air channels be set, combustion-supporting in order to outside air is introduced to burner hearth 2nd district, the second secondary air channel can arrange by-pass cock.
Between burner hearth 2nd district and chimney air flue, separated by cover plate movably, cover plate is regulated and controled by outlet flue pull bar.
In the time just starting to burn stove, open that coal filling hole adds coal cinder and from seeing that burner lights coal cinder; The mode of upper air inlet, down-firing makes flue gas descending, enters the second combustion chamber from the first combustion chamber through chimney arch below, naturally reduces to flue dust and other gas pollutants of indoor discharge.Near air outside hot blast and stove fire grate is introduced into burner hearth 2nd district by the first secondary air channel and the second secondary air channel, strengthens on the one hand burning, so just can not produce black smoke; Take full advantage of on the other hand near the entrained heat of hot-air of fire grate.
When not cooking, close coal filling hole and see burner, the coal cinder on burner hearth one upper strata, district is destructive distillation state, and the coal cinder of lower floor is fired state; The flue gas producing enters burner hearth 2nd district burning.The reducibility gas producing when the dry distillation of coal also enters in burner hearth 2nd district along the passage between chimney arch and fire grate, and the oxynitrides that burning can be produced is reduced to N
2.And because flue gas is descending, semicoke also has good reduction to the oxynitrides in flue gas.Can regulate as required the by-pass cock of the second secondary air channel end, introduce the combustion-supporting air capacity in burner hearth 2nd district thereby regulate.
In a word, in the utility model device combustion process, the discharge capacity of flue dust, oxynitrides, carbon monoxide is little, and as fuel uses the moulded coal containing desulfurizing agent, sulfurous gas discharge capacity also can reduce greatly; The utility model device volume is little, energy-efficient, is convenient to install and use; Can be used for the different coal of fugitive constituent height and do not produce black smoke.
Brief description of the drawings:
Fig. 1 is that the master of embodiment 1 looks cross-sectional view.
Fig. 2 is that cross-sectional view is looked on a left side of embodiment 1.
In figure: 1-shell, 2-chimney arch, 3-air inlet, 4-observation door, 5-burner hearth, 5a-burner hearth one district, 5b-burner hearth 2nd district, 6-the first secondary air channel (near fire grate to burner hearth 2nd district), 7-stone or metal plate for standing a stove on as a precaution against fire, 8-pyrosphere, 9-burner lid, 10-cover plate, 11-heat exchanger, 12-bobbin carriage, 13-smoke box, 14-smoke box shell, 15-fire grate end cap, 16-water jacket, 17-explosion proof door, 18-backwater box, 19-chimney sleeve pipe, 20-shoot door, 21-chimney, 22-fire grate, 23-manual setter, 24-outlet flue pull bar, 25-base, 26-thermometer, 27-Pressure gauge, 28-water inlet, 29-delivery port, 30-the second secondary air channel (2nd district from shell to burner hearth).
Detailed description of the invention:
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, in description process in order to save chapters and sections not to the routine techniques feature of dual-purpose domestic briquet stove repeated description again in the utility model.
The dual-purpose domestic briquet stove of a kind of clean and effective as shown in Figure 1 and Figure 2, comprises shell 1, base 25, observation door 4, burner hearth 5, fire grate 22, burner lid 9, chimney 21 etc., and described burner hearth 5 use chimney arch 2 are divided into burner hearth one district 5a and burner hearth two district 5b; The height of described chimney arch 2 is 1/2 of burner hearth 5 height; In order further to improve the thermal efficiency, to reduce black smoke, from 1 the first secondary air channel 6 being set to burner hearth two district 5b near fire grate 22, combustion-supporting in order near hot-air fire grate is introduced to burner hearth 2nd district; For ensureing the abundant burning of coal, respectively there is up and down an air inlet at stove, top air inlet is stove burner (being also coal filling hole), and what below air inlet was below, combustion chamber sees burner (being also lighting-up tuyere); In addition, from shell to burner hearth two district 5b, 1 the second secondary air channel 30 is set; Between burner hearth two district 5b and the flue of chimney 21, separated by cover plate 10 movably, described cover plate is regulated and controled by outlet flue pull bar 24.
The running of this coal stove is as follows:
When coal, open burner lid 9, coal cinder adds and is deposited in fire grate 22 from top burner.When igniting, open observation door 4, light coal cinder with igniting agent.While cooking, open burner lid and observation door, cooker is placed on burner, move out mouth pull bar 24 and drive the isolated flue gas of cover plate 10 to be entered the passage of smoke box 13 by burner hearth 5.Firepower is concentrated in cooker below like this, cook fast, and the combustion system that forms upper air inlet, down-firing to be conducive to flue gas descending.The passage of descending flue gas between chimney arch and fire grate enters burner hearth 2nd district from burner hearth one district, near hot-air fire grate is introduced burner hearth 2nd district by the first secondary air channel 6, outside air is introduced burner hearth 2nd district by the second secondary air channel 30, not only combustion-supporting, and effectively reuse the heat near hot-air fire grate.
When not cooking, close observation door and burner lid, isolated cold air enters in stove and isolated high-temperature flue gas scatters and disappears from burner; Can regulate as required the by-pass cock of the second secondary air channel end, introduce the combustion-supporting air capacity in burner hearth 2nd district thereby regulate.Thereby move out mouth pull bar 24 and open movably cover plate 10, high-temperature flue gas can enter smoke box 13 from burner hearth 5, the water in heating heat exchanger 11 and water jacket 16, for family's heating or hot water for life.After coal combustion, fall into ash bucket.When cleaning coal ash, pull manual setter 23, make coal ash fall into ash bucket downwards from fire grate.
In experiment, with calorific value 3800-4500, do combustion testing containing a kind of clean type coal of desulfurizing agent, the thermal efficiency can reach more than 80%, the actual measurement content sulfur dioxide≤200mg/m of pollutant in the flue gas of discharge
3, nitrogen oxide≤100mg/m
3, cigarette (powder) dirt≤30mg/m
3.
Above embodiment is only described further invention, and scope of the present utility model is not subject to the limitation of illustrated embodiment.
Claims (4)
1. a dual-purpose domestic briquet stove for clean and effective, comprises shell (1), base (25), observation door (4), burner hearth (5), fire grate (22), burner lid (9), chimney (21); Described burner hearth (5) is divided into burner hearth one district (5a) and burner hearth 2nd district (5b) with chimney arch (2); It is characterized in that, the height of described chimney arch (2) is the 1/4-4/5 of burner hearth (5) height; From 1 or many first secondary air channels (6) are set to burner hearth 2nd district (5b) near fire grate (22).
2. the dual-purpose domestic briquet stove of a kind of clean and effective as claimed in claim 1, is characterized in that, from shell to burner hearth 2nd district (5b), 1 or many second secondary air channels (30) is set.
3. the dual-purpose domestic briquet stove of a kind of clean and effective as claimed in claim 1, is characterized in that, the second secondary air channel (30) arranges by-pass cock.
4. the dual-purpose domestic briquet stove of a kind of clean and effective as claimed in claim 1, it is characterized in that, between the flue of burner hearth 2nd district (5b) and chimney (21), by movably cover plate (10) separation, described cover plate (10) is regulated and controled by outlet flue pull bar (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427421.8U CN204006146U (en) | 2014-07-30 | 2014-07-30 | A kind of dual-purpose domestic briquet stove of clean and effective |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427421.8U CN204006146U (en) | 2014-07-30 | 2014-07-30 | A kind of dual-purpose domestic briquet stove of clean and effective |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006146U true CN204006146U (en) | 2014-12-10 |
Family
ID=52046142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420427421.8U Active CN204006146U (en) | 2014-07-30 | 2014-07-30 | A kind of dual-purpose domestic briquet stove of clean and effective |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204006146U (en) |
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2014
- 2014-07-30 CN CN201420427421.8U patent/CN204006146U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |