CN105299642A - Gas burner structure - Google Patents
Gas burner structure Download PDFInfo
- Publication number
- CN105299642A CN105299642A CN201510724527.3A CN201510724527A CN105299642A CN 105299642 A CN105299642 A CN 105299642A CN 201510724527 A CN201510724527 A CN 201510724527A CN 105299642 A CN105299642 A CN 105299642A
- Authority
- CN
- China
- Prior art keywords
- main burner
- gas
- burner
- blast tube
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007789 gas Substances 0.000 claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 10
- 239000003546 flue gas Substances 0.000 claims description 10
- 239000000567 combustion gas Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 29
- 238000002485 combustion reaction Methods 0.000 abstract description 12
- 239000002737 fuel gas Substances 0.000 abstract 7
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Abstract
The invention relates to the technical field of boiler gas combustion equipment, in particular to a gas burner structure. By means of the gas burner structure, the emission of nitrogen oxide of a boiler can be greatly reduced, the stress of later pollution regulation is relieved, and the operation cost is not increased. The gas burner structure comprises a main burner. The gas burner structure is characterized in that a fuel gas channel is arranged inside the main burner; a fuel gas connector is formed in the end, exposed out of the main burner, of the fuel gas channel; a fuel gas jetting hole is formed in the end, located inside the main burner, of the fuel gas channel; a primary air connector and a secondary air connector are formed in the upper end of the main burner; swirl vanes are installed inside the portion, corresponding to the position between the secondary air connector and the fuel gas jetting hole, of the main burner; a swirl diffuser is formed by an air flow channel and the swirl vanes, wherein the air flow channel is formed between the main burner and the fuel gas channel.
Description
Technical field
The present invention relates to boiler coal gas technical field of combustion equipment, be specially a kind of gas burner structure.
Background technology
Along with the increasingly stringent of national environmental protection policy, the requirement for boiler discharged nitrous oxides is more and more stricter.Existing gas boiler designs according to a conventional method, and combustion zone provides sufficient oxygen, and excess air coefficient α is greater than 1, and the nitrogen oxide of boiler all generates at primary combustion zone, and does not have follow-up governing measure, and discharge is general higher.If it is higher to run into nitrogen content in gas composition, the numerical value of nitrogen oxide can reach about 800-1000mg/Nm3.If depend merely on SCR denitration to make boiler tail emission compliance, then will greatly increase the cost of the operation of boiler.
Summary of the invention
In order to solve the problem, the invention provides a kind of gas burner structure, it can reduce the discharge of boiler nitrogen oxide greatly, administers and eases off the pressure, do not increase operating cost for Final pollution.
Its technical scheme is such: a kind of gas burner structure, it comprises main burner, it is characterized in that, blast tube is provided with in described main burner, the described blast tube one end exposing to described main burner has combustion gas interface, the described blast tube one end being positioned at described main burner inside has gas jet orifice, described main burner upper end has First air interface and Secondary Air interface, in described main burner between corresponding described Secondary Air interface and described gas jet orifice, swirl vane is installed, the gas channel formed between described main burner and described blast tube and described swirl vane form swirl diffuser.
It is further characterized in that, has flue gas recirculation interface between the corresponding described First air interface in described main burner lower end and described Secondary Air interface;
Described combustion gas interface is arranged at described blast tube lower end, and described gas jet orifice is evenly arranged in described blast tube lateral surface;
Evenly be provided with 12-16 described swirl vane in described main burner, the axis of described swirl vane and described blast tube is 30-45 ° of angle;
Described main burner upper end is provided with burnt wind interface;
Sight glass pipe is installed in described main burner.
After adopting structure of the present invention, owing to being provided with First air interface and Secondary Air interface, realize air classification, First air is fed through swirl vane ejection at a high speed from First air interface, entrainment high-temperature flue gas, mixed combustion is carried out with the combustion gas sprayed from gas jet orifice, owing to being now anoxycausis, relative temperature is lower, the generation of heating power nitrogen oxide can be reduced, while anoxycausis, pass into the generation that Secondary Air is mixed into combustion-supporting suppression rapidity nitrogen oxide in time, greatly reduce the discharge of boiler nitrogen oxide, administer for Final pollution and ease off the pressure, follow-up SCR denitration becomes simple and convenient, reduce cost, flue gas recirculation interface can reduce the discharge of nitrogen oxide further, being evenly arranged of gas jet orifice makes combustion gas can mix with First air, Secondary Air the generation reducing heating power nitrogen oxide better, main burner upper end is provided with burnt wind interface and can sprays in burner hearth by burnt wind, can reduce the nitrogen oxide that main combustion zone generates further, thus reduce the discharge of boiler pollutant.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is main burner structural representation.
Detailed description of the invention
See Fig. 1, shown in Fig. 2, a kind of gas burner structure, it comprises main burner 1, main burner 1 end connects burner hearth (not shown in FIG.), blast tube 3 is provided with in main burner 1, the bottom, blast tube 3 one end exposing to main burner 1 has combustion gas interface 4, the blast tube 3 one end lateral surface being positioned at main burner 1 inside evenly has four row's gas jet orifices 5, main burner 1 upper end has First air interface 6 and Secondary Air interface 7, flue gas recirculation interface 2 is had between the corresponding First air interface 6 in main burner 1 lower end and Secondary Air interface 7, in main burner 1 between corresponding Secondary Air interface 7 and gas jet orifice 5,12-16 swirl vane 8 is evenly installed, swirl vane 8 is 30-45 ° of angle with the axis of blast tube 3, the gas channel formed between main burner 1 and blast tube 3 and swirl vane 8 form swirl diffuser, main burner 1 upper end is provided with burnt wind interface 9.In main burner 1, sight glass pipe 10 is also installed, internal-combustion situation can be observed by sight glass pipe 10.
Specific works process is as described below: the first, carry out air classification to main burner 1.Combustion air is sent into main burner 1 in batches, forms First air, Secondary Air.First air is by swirl vane 8 ejection at a high speed, entrainment high-temperature flue gas, mixed combustion is carried out with the combustion gas sprayed from gas jet orifice 5, owing to being now anoxycausis, relative temperature is lower, can reduce the generation of heating power nitrogen oxide, while anoxycausis, in order to suppress the generation of rapidity nitrogen oxide, Secondary Air should be mixed into combustion-supporting in time;
The second, flue gas recirculation interface 2 is set in main burner 1 lower end, by introducing low-temperature flue gas, about 130-140 DEG C, can reduce the temperature of flame on the one hand, also can reduce the oxygen concentration in combustion zone on the other hand, after low-temperature flue gas introducing point is positioned at boiler induced-draft fan, introduce main burner 1 in direct current mode, resistance increase is very little, if air-introduced machine pressure head is enough, then when not increasing new equipment, low-temperature flue gas can be sent into main burner;
Three, above main burner 1, arrange burnt wind interface 9, realize the air classification of whole combustion system, this burnt wind sprays into burner hearth above main burner 1, can reduce the nitrogen oxide that main combustion zone generates further, thus reduces the discharge of boiler pollutant;
Four, lower hot blast temperature is adopted.The generation of heating power nitrogen oxide can be reduced by this measure.
Claims (6)
1. a gas burner structure, it comprises main burner, it is characterized in that, blast tube is provided with in described main burner, the described blast tube one end exposing to described main burner has combustion gas interface, the described blast tube one end being positioned at described main burner inside has gas jet orifice, described main burner upper end has First air interface and Secondary Air interface, in described main burner between corresponding described Secondary Air interface and described gas jet orifice, swirl vane is installed, the gas channel formed between described main burner and described blast tube and described swirl vane form swirl diffuser.
2. a kind of gas burner structure according to claim 1, is characterized in that, has flue gas recirculation interface between the corresponding described First air interface in described main burner lower end and described Secondary Air interface.
3. a kind of gas burner structure according to claim 1, is characterized in that, described combustion gas interface is arranged at described blast tube lower end, and described gas jet orifice is evenly arranged in described blast tube lateral surface.
4. a kind of gas burner structure according to claim 1, is characterized in that, be evenly provided with 12-16 described swirl vane in described main burner, the axis of described swirl vane and described blast tube is 30-45 ° of angle.
5. a kind of gas burner structure according to claim 1, is characterized in that, described main burner upper end is provided with burnt wind interface.
6. a kind of gas burner structure according to claim 1, is characterized in that, be provided with sight glass pipe in described 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 true CN105299642A (en) | 2016-02-03 |
| CN105299642B CN105299642B (en) | 2018-05-15 |
Family
ID=55197221
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 |
|---|---|
| CN (1) | CN105299642B (en) |
Cited By (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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865774A (en) * | 2006-04-30 | 2006-11-22 | 西安交通大学 | Smoke-controllable self-circulating type burner with low pollution |
| CN101876433A (en) * | 2010-06-30 | 2010-11-03 | 哈尔滨工业大学 | A Swirling Pulverized Coal Burner Using Flue Gas Recirculation for Industrial Kilns |
| CN102287819A (en) * | 2011-07-01 | 2011-12-21 | 中国计量学院 | Porous medium combustor for low-caloric-value gas fuel |
| CN202132947U (en) * | 2011-07-01 | 2012-02-01 | 中国计量学院 | Porous Media Burner Using Low Calorific Value Gas Fuel |
| CN103062773A (en) * | 2012-12-25 | 2013-04-24 | 杭州全合科技有限公司 | Dual-purpose burner applicable to high-temperature 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
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1865774A (en) * | 2006-04-30 | 2006-11-22 | 西安交通大学 | Smoke-controllable self-circulating type burner with low pollution |
| CN101876433A (en) * | 2010-06-30 | 2010-11-03 | 哈尔滨工业大学 | A Swirling Pulverized Coal Burner Using Flue Gas Recirculation for Industrial Kilns |
| CN102287819A (en) * | 2011-07-01 | 2011-12-21 | 中国计量学院 | Porous medium combustor for low-caloric-value gas fuel |
| CN202132947U (en) * | 2011-07-01 | 2012-02-01 | 中国计量学院 | Porous Media Burner Using Low Calorific Value Gas Fuel |
| CN103062773A (en) * | 2012-12-25 | 2013-04-24 | 杭州全合科技有限公司 | Dual-purpose burner applicable to high-temperature 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105299642B (en) | 2018-05-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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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. |