CN206682929U - A kind of low-NOx combustor - Google Patents
A kind of low-NOx combustor Download PDFInfo
- Publication number
- CN206682929U CN206682929U CN201720265800.5U CN201720265800U CN206682929U CN 206682929 U CN206682929 U CN 206682929U CN 201720265800 U CN201720265800 U CN 201720265800U CN 206682929 U CN206682929 U CN 206682929U
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- China
- Prior art keywords
- fuel
- housing
- gun
- burner
- rifle
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Abstract
This application discloses a kind of low-NOx combustor, the burner includes housing, main fuel rifle and is fixedly installed on housing exterior walls and the circumferential equally distributed secondary fuel gun centered on main fuel rifle, the application uses the form that main fuel rifle and secondary fuel gun are set respectively, realize the shunting of flame, main fuel is sent into main fuel rifle, under the conditions of excess air factor is more than 1, burns and generate NOX.Remainder fuel is then sent into secondary fuel gun, forms very strong reducing atmosphere under conditions of excess air factor is less than 1 so that the NO generated during main fuel gun burnerXNitrogen molecular is reduced into secondary fuel gun combustion process.Not only cause the NO generated in secondary fuel gun combustion zoneXReduced, due also to be during secondary fuel gun burner with main fuel rifle caused by smoke contacts, oxygen content is relatively low, so inhibiting new NOXGeneration, NO can be madeXConcentration of emission further reduce.
Description
Technical field
It the utility model is related to the burning heating equipment technical field in petrochemical industry, and in particular to a kind of low NOXBurning
Device.
Background technology
Burner is widely used important firing equipment in the petrochemical industries such as petroleum refining, petrochemical industry, and burner will
Fuel and air mixing after-combustion, caused thermal-flame are transmitted to heating-furnace in a manner of radiant heat transfer, by most of heat
The medium of Bottomhole pressure, to improve the medium temperature of stove Bottomhole pressure, but it can be produced during in general burner combustion big
The oxynitrides of amount, oxynitrides are polluted the environment, and the lung of people can be stimulated by draining into air, cause various respiratory road
Disease, so, oxynitrides caused by burner combustion how is reduced as far as possible while burning quality is ensured just into letter
The problem of to be solved.
Utility model content
For problems of the prior art, the purpose of this utility model is to provide a kind of low NOXBurner, it has
Effect solves problem present in background technology.
To achieve the above object, the utility model uses following technical scheme：
A kind of low NOXBurner, the burner include housing, and the upper end of the housing opens, and is fixedly connected on and adds
Hot stove bottom；The bottom centre of housing is provided with main fuel rifle fixing hole, and air inlet duct is fixedly installed in the side wall of housing, described
Air inlet duct connects with housing cavity；
Main fuel rifle is fixed with the main fuel rifle fixing hole, the main fuel rifle includes main fuel rifle gun body, and
It is arranged on the main fuel rifle gun body top, the nozzle in housing cavity and is arranged on main fuel rifle gun body lower end, housing cavity
Outer fuel gas entrance, atomizing steam entrance and fuel oil-in；
It is uniformly distributed on the outer wall of the housing centered on the main fuel rifle and is provided with several secondary fuel guns, it is described
Secondary fuel gun includes fuel inlet, connection flexible pipe, secondary fuel gun gun body and the shower nozzle being sequentially connected；The secondary fuel gun gun body is worn
The refractory insulating layer for crossing Bottom of Heating Furnace or furnace wall is stretched into reheating furnace.
Further, the housing is bolted in heating furnace bottom and welded and added by the secondary fuel gun fixed plate on its outer wall
Gu the described secondary one end of fuel gun gun body away from the shower nozzle is fixedly connected in the secondary fuel gun fixed plate.
Further, the bottom of the housing is additionally provided with altar lamp fixing hole and preformed hole, wherein, the altar lamp is fixed
Altar lamp is fixedly installed in hole.
Further, the interior intracavitary of the housing is additionally provided with refractory brick enclosing, and the nozzle is located at the refractory brick enclosing
Among.
Further, several air intake butterfly valves are provided with the air inlet duct.
Further, the quantity of the secondary fuel gun is 8.
Further, the casing lining has insulation material layer.
Further, the refractory brick enclosing is made up of high-alumina brick.
Further, the fuel inlet by the fixed mount being arranged on housing exterior walls be fixedly connected on housing exterior walls it
On.
The utility model has following advantageous effects：
The utility model is novel in design, the form set respectively using main fuel rifle and secondary fuel gun, realizes flame
Shunting, main fuel is sent into main fuel rifle, under the conditions of excess air factor is more than 1, burns and generate NOX.Its remaining part
Divide fuel to be then sent into secondary fuel gun, form very strong reducing atmosphere under conditions of excess air factor is less than 1 so that in master
The NO generated in fuel gun combustion processXNitrogen molecular is reduced into secondary fuel gun combustion process.In secondary fuel gun combustion zone
Not only so that the NO generatedXReduced, due also to be during fuel combustion in secondary fuel gun with main fuel rifle caused by cigarette
Gas contacts, and oxygen content is relatively low, so inhibiting new NOXGeneration, NO can be madeXConcentration of emission further reduce.This practicality is new
Type is easy to operate, stable, is provided with other preformed holes and is available for burning torch to use, and can be used for installing flame detector etc.
Instrument is better understood by fired state, and the application can significantly reduce the amount of nitrogen oxides in flue gas after fuel combustion, have
Beneficial to preserving the ecological environment, there is very strong practicality.
Brief description of the drawings
Fig. 1 is the installment state sectional view of the utility model embodiment；
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Embodiment
Below, refer to the attached drawing, the utility model is more fully illustrated, shown in the drawings of of the present utility model
Exemplary embodiment.However, the utility model can be presented as a variety of multi-forms, it is not construed as being confined to describing here
Exemplary embodiment.And these embodiments are to provide, so that the utility model is fully and completely, and by the utility model
Scope be fully communicated to one of ordinary skill in the art.
For ease of explanation, space relative terms such as " on ", " under " " left side " " right sides " can be used herein, for saying
The element or feature shown in bright figure is relative to another element or the relation of feature.It should be understood that except in figure
Outside the orientation shown, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device is squeezed, be stated as positioned at other elements or feature " under " element will be located into other elements or feature " on ".Cause
This, exemplary term " under " both upper and lower orientation can be included.Device, which can be positioned otherwise, (to be rotated by 90 ° or is located at
Other orientation), can correspondingly it be explained used herein of the relative explanation in space.
As shown in Figure 1-2, this application provides a kind of low NOXBurner, the burner include housing 1, housing 1 it is upper
End opens, and is fixedly connected on heating furnace bottom；The bottom centre of housing 1 is provided with main fuel rifle fixing hole 3, the side of housing 1
Air inlet duct 6 is fixedly installed on wall, air inlet duct 6 connects with housing cavity 7；
Main fuel rifle 9 is fixed with main fuel rifle fixing hole 3, main fuel rifle 9 includes main fuel rifle gun body 13, and sets
Above main fuel rifle gun body 13, the nozzle 14 in housing cavity 7 and it is arranged on the lower end of main fuel rifle gun body 13, housing cavity 7
Outer fuel gas entrance 10, atomizing steam entrance 11 and fuel oil-in 12；Main fuel rifle 9 is arranged on main fuel rifle fixing hole 3
It is interior and be bolted.
It is uniformly distributed on the outer wall of housing 1 centered on main fuel rifle 9 and is provided with several secondary fuel guns 15, secondary fuel gun
15 fuel inlet 16, connection flexible pipe 17, secondary fuel gun gun body 18 and shower nozzles 19 including being sequentially connected；Secondary fuel gun gun body 18 is worn
The refractory insulating layer for crossing Bottom of Heating Furnace or furnace wall is stretched into reheating furnace.Fuel inlet 16 is by being arranged on outside housing 1
Fixed mount 20 on wall is fixedly connected on the outer wall of housing 1.
Housing 1 is bolted in heating furnace bottom and reinforcement of weld, secondary fuel gun by the secondary fuel gun fixed plate 2 on its outer wall
The one end of gun body 18 away from shower nozzle 19 is fixedly connected in secondary fuel gun fixed plate 2.
The bottom of housing 1 is additionally provided with altar lamp fixing hole 4 and preformed hole 5, wherein, it is fixed in altar lamp fixing hole 4 to set
Altar lamp 21 is equipped with, altar lamp 21 can prevent that burner midway is flame-out.
The interior intracavitary of housing 1 is additionally provided with refractory brick enclosing 8, and nozzle 14 is located among refractory brick enclosing 8.
Several air intake butterfly valves 22 are provided with air inlet duct 6, air intake in burner can be adjusted by air intake butterfly valve 22
Amount, change burning state.
The quantity of secondary fuel gun 15 is 8.Housing 1 is lined with insulation material layer.Refractory brick enclosing 8 is made up of high-alumina brick.
The course of work of the present utility model is：
The steam of main fuel rifle 9 is by fuel oil atomization, convenient burning, and main fuel is sent into main fuel rifle 9 during burning, is adjusted
Save air intake butterfly valve 22 so that the fuel oxygen-enriched combusting that main fuel rifle 9 sprays, under the conditions of excess air factor is more than 1, burning is simultaneously
Generate NOX.Remainder fuel is then sent into secondary fuel gun 15, is less than in excess air factor and very strong go back is formed under conditions of 1
Originality atmosphere so that the NO generated in the combustion process of main fuel rifle 9XNitrogen point is reduced into the secondary combustion process of fuel gun 15
Son.Not only cause the NO generated in the secondary combustion zone of fuel gun 15XReduced, due also to secondary fuel gun 15 burn when be with
Smoke contacts caused by main fuel rifle 9, oxygen content is relatively low, so inhibiting new NOXGeneration, NO can be madeXConcentration of emission enter
One step reduces.
It is described above simply to illustrate that the utility model, it is understood that the utility model be not limited to the above implementation
Example, meets the various variants of the utility model thought within the scope of protection of the utility model.
Claims (9)
- A kind of 1. low NOXBurner, it is characterised in that the burner includes housing, and the upper end of the housing opens, and fixed It is connected to heating furnace bottom；The bottom centre of housing is provided with main fuel rifle fixing hole, be fixedly installed in the side wall of housing into Air channel, the air inlet duct connect with housing cavity；Main fuel rifle is fixed with the main fuel rifle fixing hole, the main fuel rifle includes main fuel rifle gun body, and sets Above the main fuel rifle gun body, the nozzle in housing cavity and it is arranged on main fuel rifle gun body lower end, outside housing cavity Fuel gas entrance, atomizing steam entrance and fuel oil-in；It is uniformly distributed on the outer wall of the housing centered on the main fuel rifle and is provided with several secondary fuel guns, the secondary combustion Spray gun includes fuel inlet, connection flexible pipe, secondary fuel gun gun body and the shower nozzle being sequentially connected；The secondary fuel gun gun body, which passes through, to be added Hot stove furnace bottom or the refractory insulating layer of furnace wall are stretched into reheating furnace.
- 2. low NO according to claim 1XBurner, it is characterised in that the housing passes through the secondary fuel gun on its outer wall Fixed plate is bolted in heating furnace bottom and reinforcement of weld, and the described secondary one end of fuel gun gun body away from the shower nozzle is fixedly connected on In the secondary fuel gun fixed plate.
- 3. low NO according to claim 1XBurner, it is characterised in that the bottom of the housing is additionally provided with altar lamp and consolidated Determine hole and preformed hole, wherein, it is fixedly installed altar lamp in the altar lamp fixing hole.
- 4. low NO according to claim 1XBurner, it is characterised in that the interior intracavitary of the housing is additionally provided with refractory brick Enclosing, the nozzle are located among the refractory brick enclosing.
- 5. low NO according to claim 1XBurner, it is characterised in that several air intake butterflies are provided with the air inlet duct Valve.
- 6. low NO according to claim 1XBurner, it is characterised in that the quantity of the secondary fuel gun is 8.
- 7. low NO according to claim 1XBurner, it is characterised in that the casing lining has insulation material layer.
- 8. low NO according to claim 4XBurner, it is characterised in that the refractory brick enclosing is made up of high-alumina brick.
- 9. low NO according to claim 1XBurner, it is characterised in that the fuel inlet is by being arranged on housing exterior walls On fixed mount be fixedly connected on housing exterior walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720265800.5U CN206682929U (en) | 2017-03-20 | 2017-03-20 | A kind of low-NOx combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720265800.5U CN206682929U (en) | 2017-03-20 | 2017-03-20 | A kind of low-NOx combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206682929U true CN206682929U (en) | 2017-11-28 |
Family
ID=60393622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720265800.5U Active CN206682929U (en) | 2017-03-20 | 2017-03-20 | A kind of low-NOx combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206682929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953580A (en) * | 2019-11-18 | 2020-04-03 | 上海发电设备成套设计研究院有限责任公司 | Afterburning burner for diesel engine |
-
2017
- 2017-03-20 CN CN201720265800.5U patent/CN206682929U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953580A (en) * | 2019-11-18 | 2020-04-03 | 上海发电设备成套设计研究院有限责任公司 | Afterburning burner for diesel engine |
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