CN105299642B - A kind of gas burner structure - Google Patents
A kind of gas burner structure Download PDFInfo
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- CN105299642B CN105299642B CN201510724527.3A CN201510724527A CN105299642B CN 105299642 B CN105299642 B CN 105299642B CN 201510724527 A CN201510724527 A CN 201510724527A CN 105299642 B CN105299642 B CN 105299642B
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- main burner
- gas
- blast tube
- interface
- air interface
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Abstract
The present invention relates to boiler coal gas technical field of combustion equipment, specially a kind of gas burner structure, it can substantially reduce the discharge of boiler nitrogen oxides, administer and ease off the pressure for Final pollution, do not increase operating cost, it includes main burner, it is characterized in that, blast tube is provided with the main burner, the described blast tube one end for exposing to the main burner is provided with fuel gas interface, described blast tube one end inside the main burner is provided with gas jet orifice, the main burner upper end is provided with First air interface and Secondary Air interface, swirl vane is installed in the main burner between the corresponding Secondary Air interface and the gas jet orifice, the gas channel formed between the main burner and the blast tube and the swirl vane form swirl diffuser.
Description
Technical field
The present invention relates to boiler coal gas technical field of combustion equipment, is specially a kind of gas burner structure.
Background technology
Increasingly stringent with national environmental protection policy, the requirement for boiler discharged nitrous oxides is more and more stringenter.It is existing
Gas boiler designs according to a conventional method, and combustion zone provides sufficient oxygen, and excess air coefficient α is more than 1, the nitrogen oxidation of boiler
Thing is all generated in primary combustion zone, and universal higher without follow-up governing measure, discharge.If run into nitrogen content in gas composition
If higher, the numerical value of nitrogen oxides is up to 800-1000mg/Nm3 or so.If SCR denitration is depended merely on reach boiler tail discharge
Mark, then will greatly increase the cost of the operation of boiler.
The content of the invention
To solve the above-mentioned problems, the present invention provides a kind of gas burner structure, it can substantially reduce boiler nitrogen
The discharge of oxide, administers for Final pollution and eases off the pressure, do not increase operating cost.
Its technical solution is such：A kind of gas burner structure, it includes main burner, it is characterised in that described
Blast tube is provided with main burner, the described blast tube one end for exposing to the main burner is provided with fuel gas interface, position
Described blast tube one end inside the main burner is provided with gas jet orifice, and the main burner upper end is provided with First air and connects
Mouth and Secondary Air interface, correspond in the main burner between the Secondary Air interface and the gas jet orifice and are provided with eddy flow
Blade, the gas channel formed between the main burner and the blast tube and the swirl vane form swirl diffuser.
It is further characterized by, the main burner lower end correspond to the First air interface and the Secondary Air interface it
Between be provided with flue gas recirculation interface；
The fuel gas interface is arranged at the blast tube lower end, and the gas jet orifice is evenly arranged in the blast tube
Lateral surface；
The 12-16 swirl vanes are uniformly installed, the swirl vane leads to the combustion gas in the main burner
The axis in road is in 30-45 ° of angle；
The main burner upper end is provided with burnt wind interface；
Observation glass tube is installed in the main burner.
After adopting the structure of the invention, due to being provided with First air interface and Secondary Air interface, air classification is realized, once
Wind from First air interface be fed through swirl vane at a high speed spray, volume inhale high-temperature flue gas, with from the combustion gas that gas jet orifice sprays into
Row mixed combustion, due to being at this time anoxycausis, relative temperature is relatively low, can reduce the generation of heating power nitrogen oxide, is fired in anoxic
While burning, the generation that Secondary Air is mixed into combustion-supporting suppression rapidity nitrogen oxide in time is passed through, greatly reduces boiler nitrogen oxides
Discharge, for Final pollution administer ease off the pressure, follow-up SCR denitration becomes simple and convenient, reduces cost；Flue gas recirculation connects
Mouth can further reduce the discharge of nitrogen oxides, and being evenly arranged of gas jet orifice enables combustion gas and First air, Secondary Air
Preferably mixing reduces the generation of heating power nitrogen oxide, and main burner upper end is provided with burnt wind interface and can spray into burnt wind
In burner hearth, the nitrogen oxides of main burning area generation can be further reduced, so as to reduce the discharge of boiler pollutant.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is main burner structure schematic diagram.
Embodiment
See Fig. 1, shown in Fig. 2, a kind of gas burner structure, it includes main burner 1,1 end of main burner connection stove
Thorax（It is not drawn into figure）, blast tube 3 is provided with main burner 1, exposes to 3 one end lower part of blast tube of main burner 1
Fuel gas interface 4 is provided with, 3 one end lateral surface of blast tube inside main burner 1 is uniformly provided with four row's gas jet orifices 5, main
1 upper end of burner is provided with First air interface 6 and Secondary Air interface 7, and 1 lower end of main burner corresponds to First air interface 6 and Secondary Air
Flue gas recirculation interface 2 is provided between interface 7, is corresponded in the main burner 1 between Secondary Air interface 7 and gas jet orifice 5 uniformly
12-16 swirl vane 8 is installed, swirl vane 8 and the axis of blast tube 3 are in 30-45 ° of angle, and main burner 1 leads to combustion gas
The gas channel and swirl vane 8 formed between road 3 forms swirl diffuser；1 upper end of main burner is provided with burnt wind interface 9.
Observation glass tube 10 is also equipped with main burner 1, internal-combustion situation can be observed by observing glass tube 10.
Specific work process is as described below：Firstth, air classification is carried out to main burner 1.Combustion air is sent into batches
Main burner 1, forms First air, Secondary Air.First air is sprayed at a high speed by swirl vane 8, and volume inhales high-temperature flue gas, and from combustion gas
The combustion gas that spray orifice 5 sprays carries out mixed combustion, and due to being at this time anoxycausis, relative temperature is relatively low, can reduce heating power oxidation
The generation of nitrogen, while anoxycausis, in order to suppress the generation of rapidity nitrogen oxide, Secondary Air should be mixed into combustion-supporting in time；
Secondth, flue gas recirculation interface 2 is set in 1 lower end of main burner, by introducing low-temperature flue gas, about 130-140 DEG C,
On the one hand the temperature of flame can be reduced, on the other hand can also reduce the oxygen concentration in combustion zone, low-temperature flue gas introduction point is located at
After boiler induced-draft fan, main burner 1 is introduced in a manner of direct current, resistance increase very little, if air inducing compressing head is enough, is not increasing
In the case of new equipment, you can low-temperature flue gas is sent into main burner；
The 3rd, burnt wind interface 9 is set above main burner 1, realize the air classification of whole combustion system, this burns
Wind sprays into burner hearth above main burner 1, the nitrogen oxides of main burning area generation can be further reduced, so as to reduce Pollution of Boiler
The discharge of thing；
4th, using relatively low hot blast temperature.The generation of heating power nitrogen oxide can be reduced by this measure.
Claims (1)
1. a kind of gas burner structure, it includes main burner, it is characterised in that is provided with combustion gas in the main burner and leads to
Road, the described blast tube one end for exposing to the main burner are provided with fuel gas interface, the institute inside the main burner
State blast tube one end and be provided with gas jet orifice, the main burner upper end is provided with First air interface and Secondary Air interface, corresponding institute
State and swirl vane, the main burner and institute are installed in the main burner between Secondary Air interface and the gas jet orifice
State the gas channel formed between blast tube and the swirl vane forms swirl diffuser；The main burner lower end corresponds to institute
State and be provided with flue gas recirculation interface between First air interface and the Secondary Air interface；The fuel gas interface is arranged at the combustion gas
Passage lower end, the gas jet orifice are evenly arranged in the blast tube lateral surface；12- is uniformly installed in the main burner
16 swirl vanes, the axis of the swirl vane and the blast tube is in 30-45 ° of angle；The main burner upper end
It is provided with burnt wind interface；Observation glass tube is installed in the main burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724527.3A CN105299642B (en) | 2015-11-02 | 2015-11-02 | A kind of gas burner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724527.3A CN105299642B (en) | 2015-11-02 | 2015-11-02 | A kind of gas burner structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105299642A CN105299642A (en) | 2016-02-03 |
| CN105299642B true CN105299642B (en) | 2018-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510724527.3A Active CN105299642B (en) | 2015-11-02 | 2015-11-02 | A kind of gas burner structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105299642B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386841A (en) * | 2018-05-04 | 2018-08-10 | 江苏凤谷节能科技有限公司 | A kind of big momentum combustion combustor of multi-stage, energy-saving |
| CN115325537A (en) * | 2022-08-19 | 2022-11-11 | 苏州达储能源科技有限公司 | Flue gas recirculation cyclone burner for coal gas |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394107C (en) * | 2006-04-30 | 2008-06-11 | 西安交通大学 | Smoke-controllable self-circulating type burner with low pollution |
| CN101876433B (en) * | 2010-06-30 | 2011-09-14 | 哈尔滨工业大学 | Whirl pulverized coal burner used for industrial stove and adopting gas recirculation |
| CN202132947U (en) * | 2011-07-01 | 2012-02-01 | 中国计量学院 | Porous medium burner for burning low heat value gas fuel |
| CN102287819B (en) * | 2011-07-01 | 2012-12-12 | 中国计量学院 | Porous medium combustor for low-caloric-value gas fuel |
| CN103062773B (en) * | 2012-12-25 | 2015-10-28 | 杭州全合科技有限公司 | Be applicable to the dual burner of high-temperature fuel gas and heavy oil |
| CN203869039U (en) * | 2014-03-18 | 2014-10-08 | 徐州能达燃烧控制工程有限公司 | Three-level air distribution gas burner |
| CN205137446U (en) * | 2015-11-02 | 2016-04-06 | 无锡华光锅炉股份有限公司 | Gas burner structure |
-
2015
- 2015-11-02 CN CN201510724527.3A patent/CN105299642B/en active Active
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| CN105299642A (en) | 2016-02-03 |
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Address after: 214028 No. 3 Chengnan Road, new Wu District, Jiangsu, Wuxi Patentee after: Wuxi Huaguang Environmental Protection Energy Group Co., Ltd Address before: 214028 No. 3 Chengnan Road, New District, Jiangsu, Wuxi Patentee before: WUXI HUAGUANG BOILER Co.,Ltd. |
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