CN105485682A - Low-NOx burner adopting air premixing - Google Patents
Low-NOx burner adopting air premixing Download PDFInfo
- Publication number
- CN105485682A CN105485682A CN201610047428.0A CN201610047428A CN105485682A CN 105485682 A CN105485682 A CN 105485682A CN 201610047428 A CN201610047428 A CN 201610047428A CN 105485682 A CN105485682 A CN 105485682A
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- CN
- China
- Prior art keywords
- cylinder
- firewood
- lighting
- coal fire
- isolating
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a low-NOx burner adopting air premixing and relates to a natural gas burner technology. The low-NOx burner comprises a casing, a mixing cone and a fire making barrel, wherein the mixing cone is arranged in an inner chamber of the casing and shares the same axis with the casing, the lower end of the casing is open and is fixedly connected with the fire making barrel through more than two screws, and the lower edge circumference of the mixing cone in the fire making barrel is fixedly connected with the upper end of an isolating barrel. The low-NOx burner adopting air premixing is simple in structure and reasonable in design, the isolating barrel is added to the conventional burner, and a flame burns completely by means of primary premixed burning in the isolating barrel and secondary premixed burning out of the isolating barrel. Gas and air are uniformly mixed and sufficiently burnt, the burning efficiency is high, the temperature of a high-temperature point is reduced, emission of NOx is reduced, the environment is protected, and the low-NOx burner shows a new direction for the natural gas burning technology.
Description
Technical field
The present invention relates to neat gas burner technology, particularly relate to air pre-mixing low nitrogen oxide burner.
Background technology
Along with industrial expansion, environmental pollution constantly aggravates, and countries in the world environmental protection department requires strict to the discharge standard of Industrial Boiler.The usage quantity of current Industrial Boiler is comparatively large, and existing combustion of industrial boiler device exists certain drawback, and major embodiment is: the first, the nitrogen oxides in effluent content of discharge is comparatively large, exacerbates environmental pollution; The second, burner combustion gas and air mix rear disposable burning, gas-air mixes inequality, it is insufficient to burn, efficiency of combustion is low; Three, existing burner head structural design is unreasonable is also one of reason causing burning insufficient.
Summary of the invention
The present invention is intended to the deficiency for existing in background technology, and the air pre-mixing low nitrogen oxide burner provided.
Air pre-mixing low nitrogen oxide burner of the present invention, be made up of shell, composite cone and cylinder of lighting a coal fire with firewood, the axis that its composite cone is placed in shell inner cavity, composite cone and shell is same straight line, and the lower ending opening of shell is fixedly connected by plural screw rod cylinder of lighting a coal fire with firewood, is circumferentially fixedly connected with the upper end of isolating cylinder under composite cone lighting a coal fire with firewood in cylinder.
As a further improvement on the present invention, the cone of described composite cone is uniform through hole with it.
As a further improvement on the present invention, the external diameter of composite cone and isolating cylinder is all less than the internal diameter of cylinder of lighting a coal fire with firewood, and isolating cylinder forms secondary air channel with the barrel gap of cylinder of lighting a coal fire with firewood.
As a further improvement on the present invention, shell and light a coal fire with firewood between cylinder and be provided with gasket seal.
As a further improvement on the present invention, the length that the external diameter of isolating cylinder is identical with composite cone external diameter, length that is isolating cylinder is not more than cylinder of lighting a coal fire with firewood.
Air pre-mixing low nitrogen oxide burner of the present invention, structure is simple, reasonable in design, and existing burner adds isolating cylinder, and a premixed combustion of isolating cylinder inside and the secondary premixed combustion of isolating cylinder outside, make flame burn completely.Gas-air mixes, sufficient combustion, efficiency of combustion are high and reduce the temperature of high temperature dot, and reduce discharged nitrous oxides, protection of the environment is the new direction of combustion of natural gas technology.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 to air pre-mixing low nitrogen oxide burner of the present invention, be described further.
Embodiment 1
Air pre-mixing low nitrogen oxide burner of the present invention, be made up of shell 1, composite cone 2 and cylinder 3 of lighting a coal fire with firewood, it is same straight line with the axis of shell 1 that its composite cone 2 is placed in shell 1 inner chamber, composite cone 2, shell 1 lower ending opening is fixedly connected by plural screw rod 4 cylinder 3 of lighting a coal fire with firewood, lighting a coal fire with firewood, composite cone in cylinder 3 is circumferentially fixedly connected with the upper end of isolating cylinder 5 for 2 times.
Embodiment 2
Air pre-mixing low nitrogen oxide burner of the present invention, by shell 1, composite cone 2 and cylinder 3 of lighting a coal fire with firewood are formed, its composite cone 2 is placed in shell 1 inner chamber, composite cone 2 is same straight line with the axis of shell 1, the lower ending opening of shell 1 is fixedly connected by plural screw rod 4 cylinder 3 of lighting a coal fire with firewood, lighting a coal fire with firewood, composite cone in cylinder 3 is circumferentially fixedly connected with the upper end of isolating cylinder 5 for 2 times, the cone of described composite cone 2 is uniform through hole 6 with it, the external diameter of composite cone 2 and isolating cylinder 5 is all less than the internal diameter of cylinder 3 of lighting a coal fire with firewood, isolating cylinder 5 forms secondary air channel 7 with the barrel gap of cylinder 3 of lighting a coal fire with firewood.
Embodiment 3
Air pre-mixing low nitrogen oxide burner of the present invention, by shell 1, composite cone 2 and cylinder 3 of lighting a coal fire with firewood are formed, its composite cone 2 is placed in shell 1 inner chamber, composite cone 2 is same straight line with the axis of shell 1, the lower ending opening of shell 1 is fixedly connected by plural screw rod 4 cylinder 3 of lighting a coal fire with firewood, lighting a coal fire with firewood, composite cone in cylinder 3 is circumferentially fixedly connected with the upper end of isolating cylinder 5 for 2 times, the cone of described composite cone 2 is uniform through hole 6 with it, the external diameter of composite cone 2 and isolating cylinder 5 is all less than the internal diameter of cylinder 3 of lighting a coal fire with firewood, isolating cylinder 5 forms secondary air channel 7 with the barrel gap of cylinder 3 of lighting a coal fire with firewood.Shell 1 and light a coal fire with firewood between cylinder 3 and be provided with gasket seal 8, the external diameter length that is identical with composite cone 2 external diameter, isolating cylinder 5 of isolating cylinder 5 is not more than the length of cylinder 3 of lighting a coal fire with firewood, the length of isolating cylinder 5 is same or slightly shorter with the length of cylinder 3 of lighting a coal fire with firewood, with the lower limb of cylinder of lighting a coal fire with firewood for benchmark.
Isolating cylinder 5 is positioned at composite cone 2 bottom, forms inner chamber together with composite cone 2, described in cylinder 3 of lighting a coal fire with firewood be connected with shell 1 by gasket seal 8, form exocoel.Exocoel is concentric with inner chamber, and exocoel parcel inner chamber.Light a coal fire with firewood between cylinder and isolating cylinder and will form air blanketing.Combustion gas enters composite cone by top, and air is introduced into shell, and a part enters composite cone, and another part enters interlayer, and the air in composite cone becomes premix gas with combustion gas mixing, and premix gas is lighted in isolating cylinder, forms a premixed flame of oxygen deprivation, low temperature.At one time, exit premixed flame of lighting a coal fire with firewood, the air flowed out with isolating cylinder and light a coal fire with firewood collet chuck layer and secondary air channel 7 meets, and secondary mixes, and flame is burnt completely.
Claims (5)
1. air pre-mixing low nitrogen oxide burner, be made up of shell (1), composite cone (2) and cylinder of lighting a coal fire with firewood (3), it is characterized in that composite cone (2) is placed in shell (1) inner chamber, composite cone (2) is same straight line with the axis of shell (1), and the lower ending opening of shell (1) is fixedly connected cylinder of lighting a coal fire with firewood (3) by plural screw rod (4), is circumferentially fixedly connected with the upper end of isolating cylinder (5) under composite cone (2) in cylinder of lighting a coal fire with firewood (3).
2. air pre-mixing low nitrogen oxide burner as claimed in claim 1, the cone that it is characterized in that described composite cone (2) is uniform through hole (6) with it.
3. air pre-mixing low nitrogen oxide burner as claimed in claim 1 or 2, it is characterized in that the external diameter of composite cone (2) and isolating cylinder (5) is all less than the internal diameter of cylinder of lighting a coal fire with firewood (3), isolating cylinder (5) forms secondary air channel (7) with the barrel gap of cylinder (3) of lighting a coal fire with firewood.
4. air pre-mixing low nitrogen oxide burner as claimed in claim 1 or 2, is characterized in that being provided with gasket seal (8) between shell (1) and cylinder of lighting a coal fire with firewood (3).
5. air pre-mixing low nitrogen oxide burner as claimed in claim 1 or 2, is characterized in that the external diameter of isolating cylinder (5) is identical with composite cone (2) external diameter, the length of isolating cylinder (5) is not more than the length of cylinder of lighting a coal fire with firewood (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610047428.0A CN105485682A (en) | 2016-01-25 | 2016-01-25 | Low-NOx burner adopting air premixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610047428.0A CN105485682A (en) | 2016-01-25 | 2016-01-25 | Low-NOx burner adopting air premixing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105485682A true CN105485682A (en) | 2016-04-13 |
Family
ID=55672838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610047428.0A Pending CN105485682A (en) | 2016-01-25 | 2016-01-25 | Low-NOx burner adopting air premixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105485682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621934A (en) * | 2017-05-24 | 2019-12-27 | 贝卡尔特燃烧技术股份有限公司 | Internal ignition premixed gas burner |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB376739A (en) * | 1930-12-30 | 1932-06-30 | William Warren Triggs | Improved process of and apparatus for burning gas |
| JPS58179718A (en) * | 1982-04-16 | 1983-10-21 | Matsushita Electric Ind Co Ltd | Combustion apparatus |
| CN101101116A (en) * | 2007-07-13 | 2008-01-09 | 清华大学 | Double passage ejection energy-saving burner |
| CN101706103A (en) * | 2009-12-11 | 2010-05-12 | 北京工业大学 | Efficient and energy-saving environment-friendly high-pressure burner |
| CN102242933A (en) * | 2011-07-12 | 2011-11-16 | 武振华 | Mixed gas burner |
| CN103353113A (en) * | 2012-07-17 | 2013-10-16 | 佛山市广旭节能自动化科技有限公司 | Heating furnace with turbine tempering-proof premix nozzles |
| CN204141584U (en) * | 2014-08-21 | 2015-02-04 | 中国石化扬子石油化工有限公司 | Burner |
| CN204388055U (en) * | 2015-01-13 | 2015-06-10 | 天津高德恒立科技有限公司 | Rotary-cut hybrid combustor |
| CN205299524U (en) * | 2016-01-25 | 2016-06-08 | 大庆市斯麦森科技有限公司 | Air mixes low -nitrogen oxide combustion ware in advance |
-
2016
- 2016-01-25 CN CN201610047428.0A patent/CN105485682A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB376739A (en) * | 1930-12-30 | 1932-06-30 | William Warren Triggs | Improved process of and apparatus for burning gas |
| JPS58179718A (en) * | 1982-04-16 | 1983-10-21 | Matsushita Electric Ind Co Ltd | Combustion apparatus |
| CN101101116A (en) * | 2007-07-13 | 2008-01-09 | 清华大学 | Double passage ejection energy-saving burner |
| CN101706103A (en) * | 2009-12-11 | 2010-05-12 | 北京工业大学 | Efficient and energy-saving environment-friendly high-pressure burner |
| CN102242933A (en) * | 2011-07-12 | 2011-11-16 | 武振华 | Mixed gas burner |
| CN103353113A (en) * | 2012-07-17 | 2013-10-16 | 佛山市广旭节能自动化科技有限公司 | Heating furnace with turbine tempering-proof premix nozzles |
| CN204141584U (en) * | 2014-08-21 | 2015-02-04 | 中国石化扬子石油化工有限公司 | Burner |
| CN204388055U (en) * | 2015-01-13 | 2015-06-10 | 天津高德恒立科技有限公司 | Rotary-cut hybrid combustor |
| CN205299524U (en) * | 2016-01-25 | 2016-06-08 | 大庆市斯麦森科技有限公司 | Air mixes low -nitrogen oxide combustion ware in advance |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621934A (en) * | 2017-05-24 | 2019-12-27 | 贝卡尔特燃烧技术股份有限公司 | Internal ignition premixed gas burner |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |
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| RJ01 | Rejection of invention patent application after publication |