CN207247206U - A kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system - Google Patents
A kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system Download PDFInfo
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- CN207247206U CN207247206U CN201721100236.8U CN201721100236U CN207247206U CN 207247206 U CN207247206 U CN 207247206U CN 201721100236 U CN201721100236 U CN 201721100236U CN 207247206 U CN207247206 U CN 207247206U
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- spray gun
- gaseous fuel
- rotational
- pipette tips
- flue gas
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Abstract
The utility model discloses a kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system, including central wind-tube, eddy flow tray, fixed disk, burner box shell, igniting spray gun, center gas Fuel lance, some inward turning gaseous fuel spray guns, some interior steady flame spray gun, some rotational-flow stable-flame spray guns and some outer main gaseous fuel spray guns, the burner can be suitable for flue gas recycled system, realize and stablize burning, and high combustion efficiency, the discharge capacity of nitrogen oxides are relatively low.
Description
Technical field
The utility model belongs to ultralow nitrogen clean-burning technology field, is related to a kind of height suitable for flue gas recycled system
The low nitrogen burner of steady combustion property.
Background technology
In recent years, the demand of the energy and price are all constantly soaring, and energy resource supply is relatively nervous, energy gap problem
Increasingly significant.Global Environmental Problems constantly highlight at the same time, for example climate warming, acid rain and photochemical fog problem so that environment
Problem is increasingly subject to social concerns.At present, world energy sources supply depends on fossil energy, and burning is the master of its energy conversion
Mode is wanted, the chemical energy of fuel is converted to thermal energy by it, and the energy obtained by burning mineral fuel accounts for world's gross energy and disappears
More than the 90% of consumption, energy-saving and emission-reduction arduous task.
Gaseous fuel has the characteristics that higher efficiency of combustion and low pollution emission, so gaseous fuel is as clean energy resource
It is widely used in the industrial furnace (kiln) and boiler of the industries such as electric power, chemical industry, metallurgy, building materials.And as the gas of its key equipment
Body burner, research constantly make progress.But in terms of the research to it is concentrated mainly on the performance improvement to burner.And to dirt
Contaminate the also far from enough of thing control aspect concern.
Since 2016, policy requirements gas fired-boiler was put into effect in the city such as Beijing, Zhengzhou, Xi'an, Chengdu, Tianjin in succession
NOx emission concentration is controlled in 30mg/m3(standard state, 3.5%O2) below.Depending merely on traditional gas burner cannot meet to arrange
Put requirement.
Research shows that the gas burner with flue gas recycled system can realize lower discharged nitrous oxides.But
Gas burner with flue gas recycled system is because of oxygen amount decline after flue gas recirculation, and flame ignition distance lengthens, so as to lead
Outer ring spray gun is caused to be not easy to be lighted by inner ring spray gun, combustor stability is deteriorated.Therefore, it is badly in need of developing a kind of new be applicable in
In the low nitrogen burner of the steady combustion property of height of flue gas recycled system.
Utility model content
The purpose of the utility model is to overcome the shortcomings that the above-mentioned prior art, there is provided one kind is suitable for flue gas recycled
The low nitrogen burner of the steady combustion property of height of system, which can be suitable for flue gas recycled system, and can realize steady
Fixed burning, efficiency of combustion is higher, and the discharge capacity of nitrogen oxides is relatively low.
To reach above-mentioned purpose, the steady combustion property of the height low nitrogen described in the utility model suitable for flue gas recycled system
Burner include central wind-tube, eddy flow tray, fixed disk, burner box shell, igniting spray gun, center gas Fuel lance, it is some in
Revolve gaseous fuel spray gun, some interior steady flame spray gun, some rotational-flow stable-flame spray guns and some outer main gaseous fuel spray guns；
Central wind-tube, eddy flow tray, fixed disk and burner box shell are sequentially arranged from inside to outside, and igniting spray gun is located at centre wind
In cylinder, central wind-tube is internally formed centre wind region, and direct current wind region in annular, fixed disk are formed between eddy flow tray and fixed disk
The outer direct current wind region of annular is formed between burner box shell；
The pipette tips of center gas Fuel lance and the pipette tips of interior steady flame spray gun both pass through central wind-tube and reach central wind-tube
Outside, the pipette tips of each rotational-flow stable-flame spray gun both pass through eddy flow tray, and the pipette tips spout of each rotational-flow stable-flame spray gun is towards eddy flow tray, and eddy flow
The gaseous fuel direction that steady flame lance ejection comes out is flowed on the contrary, each outer main gaseous fuel spray gun with the Whirl deposite tank that eddy flow tray is formed
And each inward turning gaseous fuel spray gun both passes through fixed disk, wherein, the pipette tips end face of each inward turning gaseous fuel spray gun is towards eddy flow
Disk, the gaseous fuel direction that each inward turning gaseous fuel lance ejection comes out flow to identical with the Whirl deposite tank that eddy flow tray is formed.
The pipette tips end face of center gas Fuel lance and the pipette tips end face of interior steady flame spray gun are planar structure.
Each interior steady flame spray gun is distributed in a ring, and each rotational-flow stable-flame spray gun is distributed in a ring, and each outer main gaseous fuel spray gun is in
Annular spread, each inward turning gaseous fuel spray gun are distributed in a ring, and outer main gaseous fuel spray gun is handed over inward turning gaseous fuel spray gun
Mistake distribution.
The end face of each inward turning gaseous fuel spray gun pipette tips is inclined-plane, and the gas that each inward turning gaseous fuel lance ejection comes out
Fuel forms a concentric circles in annular outside direct current wind region.
The pipette tips spout of rotational-flow stable-flame spray gun is located on the side wall of rotational-flow stable-flame spray gun pipette tips.
The gaseous fuel that each rotational-flow stable-flame spray gun sprays forms a concentric circles outside the Whirl deposite tank region that eddy flow tray is formed.
The utility model has the advantages that：
The steady combustion property of height low nitrogen burner described in the utility model suitable for flue gas recycled system at work,
Combustion air is divided into by level Four by direct current wind region, the outer direct current wind region of annular and eddy flow tray in centre wind region, annular, is led to
Cross center gas Fuel lance, interior steady flame spray gun, rotational-flow stable-flame spray gun, inward turning gaseous fuel spray gun and outer main gaseous fuel spray gun
Fuel is divided into three-level, so as to fulfill the difference mixed combustion of combustion air and fuel, wherein, center gas Fuel lance and interior
The gaseous fuel that steady flame spray gun sprays is engaged with the centre wind that central wind-tube exports, the gaseous fuel that rotational-flow stable-flame spray gun sprays
Be engaged with the Whirl deposite tank of eddy flow tray output, the gaseous fuel that inward turning gaseous fuel spray gun and outer main gaseous fuel spray gun spray with
The direct current wind facies of direct current wind region and the outer direct current wind region output of annular coordinates in annular, so that gaseous fuel and combustion air
It is sufficiently mixed, realizes multi-level mixed combustion, the effective efficiency of combustion for improving gaseous fuel, reduces local high temperature zone in stove
Domain, the significantly discharge capacity compared with low NOx, and structure is relatively simple.In addition, rotational-flow stable-flame spray gun is arranged in central wind-tube
On eddy flow tray between fixed disk, can effectively connect, transmit in steady flame spray gun and outer main gaseous fuel spray gun and inward turning gas
Flame between fluid fuel spray gun, realizes steady combustion when underload, low excess air operation, therefore is suitable for flue gas recycled system.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the sectional view of the utility model；
Fig. 3 is the utility model side view；
Fig. 4 is the structure diagram of 9 pipette tips of rotational-flow stable-flame spray gun in the utility model；
Fig. 5 is the structure diagram of 5 pipette tips of inward turning gaseous fuel spray gun in the utility model.
Wherein, 1 be burner box shell, 2 be the outer direct current wind region of annular, 3 be fixed disk, 4 be outer main gaseous fuel spray gun,
5 be inward turning gaseous fuel spray gun, 6 be direct current wind region in annular, 7 be eddy flow tray, 8 be igniting spray gun, 9 be rotational-flow stable-flame spray
Rifle, 10 center gas Fuel lances, 11 are air duct centered on interior steady flame spray gun, 12.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the steady combustion of the height described in the utility model suitable for flue gas recycled system
Property low nitrogen burner include central wind-tube 12, eddy flow tray 7, fixed disk 3, burner box shell 1, igniting spray gun 8, center gas
Fuel lance 10, some inward turning gaseous fuel spray guns 5, some interior steady flame spray gun 11, some rotational-flow stable-flame spray guns 9 and some outer masters
Gaseous fuel spray gun 4；Central wind-tube 12, eddy flow tray 7, fixed disk 3 and burner box shell 1 are sequentially arranged from inside to outside, put fire-fighting
Rifle 8 is located in central wind-tube 12, and central wind-tube 12 is internally formed centre wind region, and annular is formed between eddy flow tray 7 and fixed disk 3
Interior direct current wind region 6, forms the outer direct current wind region 2 of annular between fixed disk 3 and burner box shell 1；Center gas Fuel lance
10 pipette tips and the pipette tips of interior steady flame spray gun 11 both pass through central wind-tube 12 and reach outside central wind-tube 12, each rotational-flow stable-flame spray gun
9 pipette tips both pass through eddy flow tray 7, and the pipette tips spout of each rotational-flow stable-flame spray gun 9 is towards eddy flow tray 7, and rotational-flow stable-flame spray gun 9 sprays
Gaseous fuel direction out is flowed on the contrary, each outer main gaseous fuel spray gun 4 and each inward turning gas with the Whirl deposite tank that eddy flow tray 7 is formed
Fluid fuel spray gun 5 both passes through fixed disk 3, wherein, the pipette tips end face of each inward turning gaseous fuel spray gun 5 is each interior towards eddy flow tray 7
The gaseous fuel direction that rotation gaseous fuel spray gun 5 ejects flowed to the Whirl deposite tank that eddy flow tray 7 is formed it is identical so that inward turning
The gaseous fuel that gaseous fuel spray gun 5 ejects punching opposite with the fuel that the pipette tips of rotational-flow stable-flame spray gun 9 eject.
The pipette tips end face of center gas Fuel lance 10 and the pipette tips end face of interior steady flame spray gun 11 are planar structure；In each
Steady flame spray gun 11 is distributed in a ring, and each rotational-flow stable-flame spray gun 9 is distributed in a ring, and each outer main gaseous fuel spray gun 4 is distributed in a ring,
Each inward turning gaseous fuel spray gun 5 is distributed in a ring, and outer main gaseous fuel spray gun 4 is interspersed with inward turning gaseous fuel spray gun 5.
The end face of each 5 pipette tips of inward turning gaseous fuel spray gun is inclined-plane, and the gas that each inward turning gaseous fuel spray gun 5 ejects
Fluid fuel forms a concentric circles in annular outside direct current wind region 6；The pipette tips spout of rotational-flow stable-flame spray gun 9 is located at rotational-flow stable-flame
On the side wall of 9 pipette tips of spray gun；The Whirl deposite tank region shape that the gaseous fuel that each rotational-flow stable-flame spray gun 9 sprays is formed in eddy flow tray 7
Into a concentric circles.
Rotational-flow stable-flame spray gun 9 is arranged on the eddy flow tray 7 between central wind-tube 12 and fixed disk 3, can effectively be connected, be passed
Interior steady flame spray gun 11 and the flame between outer main gaseous fuel spray gun 4 and inward turning gaseous fuel spray gun 5 are passed, realizes underload, low
Steady combustion when oxygen amount is run.
The utility model reaches super admixture by gaseous fuel and combustion air multi-level hierarchical, to reach at utmost
The purpose of nitrogen oxides is reduced, while by the flame transmission of rotational-flow stable-flame spray gun 9, when realizing underload, low excess air operation
Steady combustion, suitable for flue gas recycled system, reaches the discharge for reducing nitrogen oxides.In concrete operations, the utility model is steaming
The gas fired-boiler denitration such as boiler furnace, hot-water boiler and heating furnace provides a kind of Economic Transformation technology path, is not increasing
In the case of SNCR and SCR device, only gas fired-boiler discharged nitrous oxides can be reduced to 80mg/m by burner3Hereinafter, it is full
The newest environmental protection standard requirement of foot.Coordinate flue gas recirculating technique again on this basis, can be by gas fired-boiler discharged nitrous oxides
It is reduced to 30mg/m3Below.
Claims (7)
1. a kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system, it is characterised in that including centre wind
Cylinder (12), eddy flow tray (7), fixed disk (3), burner box shell (1), igniting spray gun (8), center gas Fuel lance (10) if,
Dry inward turning gaseous fuel spray gun (5), some interior steady flame spray guns (11), some rotational-flow stable-flame spray guns (9) and some outer main gas combustions
Expect spray gun (4)；
Central wind-tube (12), eddy flow tray (7), fixed disk (3) and burner box shell (1) are sequentially arranged from inside to outside, spray gun of lighting a fire
(8) in central wind-tube (12), central wind-tube (12) is internally formed centre wind region, between eddy flow tray (7) and fixed disk (3)
Direct current wind region (6) in annular is formed, the outer direct current wind region (2) of annular is formed between fixed disk (3) and burner box shell (1)；
The pipette tips of center gas Fuel lance (10) and the pipette tips of interior steady flame spray gun (11) both pass through central wind-tube (12) and reach
Outside, the pipette tips of each rotational-flow stable-flame spray gun (9) both pass through eddy flow tray (7), the pipette tips of each rotational-flow stable-flame spray gun (9) to central wind-tube (12)
Spout is towards eddy flow tray (7), and the rotation that the gaseous fuel direction that ejects of rotational-flow stable-flame spray gun (9) is formed with eddy flow tray (7)
Flow it is distinguished and admirable on the contrary, each outer main gaseous fuel spray gun (4) and each inward turning gaseous fuel spray gun (5) both pass through fixed disk (3), its
In, the pipette tips end face of each inward turning gaseous fuel spray gun (5) is ejected towards eddy flow tray (7), each inward turning gaseous fuel spray gun (5)
The gaseous fuel direction come flows to identical with the Whirl deposite tank that eddy flow tray (7) is formed.
2. the steady combustion property of the height low nitrogen burner according to claim 1 suitable for flue gas recycled system, its feature
It is, the pipette tips end face of the pipette tips end face of center gas Fuel lance (10) and interior steady flame spray gun (11) is planar structure.
3. the steady combustion property of the height low nitrogen burner according to claim 1 suitable for flue gas recycled system, its feature
It is, each interior steady flame spray gun (11) is distributed in a ring, and each rotational-flow stable-flame spray gun (9) is distributed in a ring, each outer main gaseous fuel spray
Rifle (4) is distributed in a ring, and each inward turning gaseous fuel spray gun (5) is distributed in a ring, and outer main gaseous fuel spray gun (4) and inward turning gas
Fluid fuel spray gun (5) is interspersed.
4. the steady combustion property of the height low nitrogen burner according to claim 1 suitable for flue gas recycled system, its feature
It is, the end face of each inward turning gaseous fuel spray gun (5) pipette tips is inclined-plane.
5. the steady combustion property of the height low nitrogen burner according to claim 1 suitable for flue gas recycled system, its feature
It is, the gaseous fuel that each inward turning gaseous fuel spray gun (5) ejects direct current wind region (6) in annular forms one together outside
The heart is justified, and the Whirl deposite tank that the gaseous fuel direction that ejects of inward turning gaseous fuel spray gun (5) is formed with eddy flow tray (7) flows to phase
Together.
6. the steady combustion property of the height low nitrogen burner according to claim 1 suitable for flue gas recycled system, its feature
It is, the pipette tips spout of rotational-flow stable-flame spray gun (9) is located on the side wall of rotational-flow stable-flame spray gun (9) pipette tips.
7. the steady combustion property of the height low nitrogen burner according to claim 1 suitable for flue gas recycled system, its feature
It is, the gaseous fuel that each rotational-flow stable-flame spray gun (9) sprays forms one with one heart outside the Whirl deposite tank region that eddy flow tray (7) is formed
Circle, and the gaseous fuel direction that rotational-flow stable-flame spray gun (9) ejects is opposite with the Whirl deposite tank flow direction that eddy flow tray (7) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100236.8U CN207247206U (en) | 2017-08-30 | 2017-08-30 | A kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100236.8U CN207247206U (en) | 2017-08-30 | 2017-08-30 | A kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system |
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| Publication Number | Publication Date |
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| CN207247206U true CN207247206U (en) | 2018-04-17 |
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ID=61884768
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721100236.8U Active CN207247206U (en) | 2017-08-30 | 2017-08-30 | A kind of low nitrogen burner of the steady combustion property of height suitable for flue gas recycled system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443886A (en) * | 2018-05-31 | 2018-08-24 | 西安西热锅炉环保工程有限公司 | Low nitrogen burner |
| CN109099427A (en) * | 2018-10-15 | 2018-12-28 | 北京环科环保技术公司 | A kind of combustion head of burner |
| CN113048478A (en) * | 2021-04-01 | 2021-06-29 | 西安交大思源科技股份有限公司 | Low-calorific-value combustible gas cyclone low-nitrogen burner |
-
2017
- 2017-08-30 CN CN201721100236.8U patent/CN207247206U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443886A (en) * | 2018-05-31 | 2018-08-24 | 西安西热锅炉环保工程有限公司 | Low nitrogen burner |
| CN108443886B (en) * | 2018-05-31 | 2023-11-03 | 西安西热锅炉环保工程有限公司 | Low nitrogen gas burner |
| CN109099427A (en) * | 2018-10-15 | 2018-12-28 | 北京环科环保技术公司 | A kind of combustion head of burner |
| CN113048478A (en) * | 2021-04-01 | 2021-06-29 | 西安交大思源科技股份有限公司 | Low-calorific-value combustible gas cyclone low-nitrogen burner |
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