CN108151016A - A kind of multistage mutual interference smoke backflow surpasses low NO - Google Patents
A kind of multistage mutual interference smoke backflow surpasses low NO Download PDFInfo
- Publication number
- CN108151016A CN108151016A CN201711362646.4A CN201711362646A CN108151016A CN 108151016 A CN108151016 A CN 108151016A CN 201711362646 A CN201711362646 A CN 201711362646A CN 108151016 A CN108151016 A CN 108151016A
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- China
- Prior art keywords
- flow device
- disturbing flow
- mixing arrangement
- combustion barrel
- mutual interference
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Classifications
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- 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
-
- 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
-
- 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
- F23D14/70—Baffles or like flow-disturbing devices
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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 present invention provides a kind of multistage mutual interference smoke backflow and surpasses low NO, including burner body, the burner body includes mixing arrangement, the mixing arrangement has air intlet, heat smoke import, Imported gas and igniting interface tube, further include disturbing flow device, the disturbing flow device is axially arranged with the through-hole connected with air intlet, disturbing flow device is radially provided with several through-holes entered for natural gas, the disturbing flow device is arranged in mixing arrangement, further include combustion barrel, the combustion barrel is assembled together by connecting flange and disturbing flow device and mixing arrangement, the one end of the combustion barrel far from disturbing flow device is equipped with stable flame pan, the other end is arranged in combustion barrel through disturbing flow device and is connect with stable flame pan, it is recycled in existing flue gas, there is flue gas outer circulation again.The design feature of this inside and outside cycle combination of flue gas, is not limited by boiler furnace space and boiler erection environment space, has wide applicability.
Description
Technical field
The present invention relates to a kind of combustion apparatus, more particularly to a kind of multistage mutual interference smoke backflow surpasses low NO.
Background technology
At present, new boiler or the low NO that generally uses of transformation boiler are flue gas outer circulation pattern in the market, when adopting
During with improperly flue gas recirculation rate, burning can be unstable, and imperfect combustion heat loss can increase.Flue gas outer circulation flue, no
It only needs place, increase investment, and systematic comparison is complicated.The boiler furnace space having for low nitrogen transformation project is small,
Some boiler room installation spaces are particularly compact, cause flue gas outer circulation that can not realize.
Invention content
For existing technical deficiency, the present invention provides a kind of multistage mutual interference smoke backflow and surpasses low NO.
To achieve these goals, the technical solution used in the present invention is：A kind of ultralow nitrogen of multistage mutual interference smoke backflow
Burner, including burner body, the burner body include mixing arrangement, the mixing arrangement have air into
Mouth, heat smoke import, Imported gas and igniting interface tube, further include disturbing flow device, the disturbing flow device be axially arranged with
The through-hole of air intlet connection, disturbing flow device are radially provided with several through-holes entered for natural gas, disturbing flow device setting
In mixing arrangement, combustion barrel is further included, the combustion barrel is assemblied in by connecting flange and disturbing flow device and mixing arrangement
Together, the one end of the combustion barrel far from disturbing flow device is equipped with stable flame pan, further includes ignitron, described ignitron one end with
The igniting interface tube connection of mixing arrangement, the other end is arranged in combustion barrel through disturbing flow device and is connect with stable flame pan, described
One end outer ring of combustion barrel connection stable flame pan be equipped with through-hole for mixed gas outflow, position is equipped among the combustion barrel
Several through-holes for mixed gas outflow.
The mixing arrangement is cylindrical tube.
The disturbing flow device includes conically shaped and spoiler, the barrel of the conically shaped be equipped with it is several for natural gases into
The through-hole entered, one end that conically shaped corresponds to mixing arrangement are equipped with the through-hole entered for air.
The stable flame pan is equipped with several holes for mixed gas outflow.
The connecting flange is equipped with screw hole, passes through bolt between the disturbing flow device, mixing arrangement and combustion barrel
With connecting flange fixing assembling.
Position is circumferentially with elongated hole among the combustion barrel, and the one end for connecting stable flame pan is also circumferentially with elongated hole.
Beneficial effects of the present invention：The present invention breaks through the defects of traditional flue gas outer circulation burner.It is recycled in existing flue gas,
There is flue gas outer circulation again.Small for furnace cavity, the small boiler in boiler erection space, the interior cycle of flue gas can be used alone.Otherwise
The two also can be used simultaneously；One, two, three flame flue gas in burning can be formed by, which being circulated in flue gas in burner hearth, disturbs mutually,
The flue gas generated after two level flame combustion, which is participated in respectively in level-one flame, three-level flame, to burn, and reduces the temperature of flame, more
Further achieve the effect that reduce discharge.NOx emission is less than 30mg/Nm3；The design of this inside and outside cycle combination of flue gas is special
Point is not limited by boiler furnace space and boiler erection environment space, has wide applicability.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the fundamental diagram of the present invention.
Specific embodiment
As Figure 1-Figure 2, a kind of multistage mutual interference smoke backflow surpasses low NO, described including burner body
Burner body includes mixing arrangement 100, and the mixing arrangement 100 has air intlet 110, heat smoke import 120, day
Right gas import 130 and igniting interface tube 140, further include disturbing flow device 200, the disturbing flow device 200 is axially arranged with and air
The through-hole (not shown) of inlet communication, disturbing flow device 200 are radially provided with several through-holes 211 entered for natural gas, and described disturbs
Stream device 200 is arranged in mixing arrangement 100, further includes combustion barrel 300, the combustion barrel 300 by connecting flange 400 with
Disturbing flow device 200 and mixing arrangement 100 are assembled together, and described one end of combustion barrel 300 far from disturbing flow device 200 is equipped with
Stable flame pan 500, further includes ignitron 600, and described 600 one end of ignitron and the igniting interface tube 140 of mixing arrangement 100 connect
It connects, the other end is arranged in combustion barrel 300 through disturbing flow device 200 and is connect with stable flame pan 500, and the combustion barrel 300 connects
One end outer ring for connecing stable flame pan 500 is equipped with the through-hole 310 flowed out for mixed gas, and the 300 intermediate position of combustion barrel is set
There are several through-holes 320 flowed out for mixed gas, ignitron is made of two sections of small tubules, for lighting a fire.
The mixing arrangement 100 is cylindrical tube.
The disturbing flow device 200 includes conically shaped 210 and spoiler 220, if the barrel of the conically shaped 210 is equipped with
The through-hole 211 entered for natural gas is done, one end that conically shaped 210 corresponds to mixing arrangement 100 is equipped with the through-hole that air is supplied to enter (not
Diagram).
The stable flame pan 500 is equipped with several holes (not shown) for mixed gas outflow.
The connecting flange 400 is equipped with screw hole, the disturbing flow device 200, mixing arrangement 100 and combustion barrel 300
Between pass through bolt and 400 fixing assembling of connecting flange.
The 300 intermediate position of combustion barrel is circumferentially with elongated hole 320, and one end of connection stable flame pan 500 is also circumferentially set
There is elongated hole 310.
Operation principle：It is the air intake through mixing apparatus, flue gas that this multistage mutual interference flue gas adverse current, which surpasses low NO,
Air in proportion and heat smoke are respectively enterd mixing apparatus by entrance, and in mixing apparatus after mixing, into disturbing flow device.
In disturbing flow device with Imported gas flow into natural gas it is full and uniform mix after, flow into combustion barrel.Through stable flame pan outflow
Mixed gas forms level-one (or main) flame zone a after lighting.Two level is formed after the mixed gas of combustion barrel end outflow is lighted
Flame zone b.Three-level flame zone c is formed after the mixed gas of slot hole outflow in the middle part of combustion barrel is lighted.Above-mentioned one (or main), two,
Three-level flame disturbs mutually in burning, and the flue gas generated after two level flame combustion participates in level-one flame, three-level flame respectively
Middle burning makes fuel combustion abundant, improves efficiency of combustion, reduces the temperature of flame, has achieved the effect that reduce NOx emission.
NOx emission is less than 30mg/Nm3.
For the bags it is smaller or because the conditions such as place limitation can not connect flue gas outer circulation flue, can be by heat smoke
Import is sealed with blind flange, also can reach the effect for reducing NOx emission.
Present invention burning is fully, the thermal efficiency is high, NOx emission is low, stability is very good, suitable for various boilers, using wide
It is general to be convenient for popularizing.
Beneficial effects of the present invention：The present invention breaks through the defects of traditional flue gas outer circulation burner.It is recycled in existing flue gas,
There is flue gas outer circulation again.Small for furnace cavity, the small boiler in boiler erection space, the interior cycle of flue gas can be used alone.Otherwise
The two also can be used simultaneously；One, two, three flame flue gas in burning can be formed by, which being circulated in flue gas in burner hearth, disturbs mutually,
The flue gas generated after two level flame combustion, which is participated in respectively in level-one flame, three-level flame, to burn, and reduces the temperature of flame, more
Further achieve the effect that reduce discharge.NOx emission is less than 30mg/Nm3；The design of this inside and outside cycle combination of flue gas is special
Point is not limited by boiler furnace space and boiler erection environment space, has wide applicability.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, the simple change of those ordinary skill in the art
All it is within protection scope of the present invention with replacing.
Claims (6)
1. a kind of multistage mutual interference smoke backflow surpasses low NO, which is characterized in that including burner body, the burner
Ontology includes mixing arrangement, and there is the mixing arrangement air intlet, heat smoke import, Imported gas and ignitron to connect
Mouthful, disturbing flow device is further included, the disturbing flow device is axially arranged with the through-hole connected with air intlet, and disturbing flow device is radially provided with
Several through-holes entered for natural gas, the disturbing flow device are arranged in mixing arrangement, further include combustion barrel, the burning
Cylinder is assembled together by connecting flange and disturbing flow device and mixing arrangement, and the one end of the combustion barrel far from disturbing flow device is set
There is stable flame pan, further include ignitron, the igniting interface tube connection of described ignitron one end and mixing arrangement, the other end, which runs through, disturbs
Stream device is arranged in combustion barrel and is connect with stable flame pan, and one end outer ring of combustion barrel connection stable flame pan is equipped with for mixing
The through-hole of gas outflow, combustion barrel centre position are equipped with several through-holes for mixed gas outflow.
2. a kind of multistage mutual interference smoke backflow as described in claim 1 surpasses low NO, which is characterized in that the mixing
Device is cylindrical tube.
3. a kind of multistage mutual interference smoke backflow as described in claim 1 surpasses low NO, which is characterized in that the flow-disturbing
Device includes conically shaped and spoiler, and the barrel of the conically shaped is equipped with several through-holes entered for natural gas, conically shaped pair
One end of mixing arrangement is answered to be equipped with the through-hole entered for air.
4. a kind of multistage mutual interference smoke backflow as described in claim 1 surpasses low NO, which is characterized in that the steady flame
Disk is equipped with several holes for mixed gas outflow.
5. a kind of multistage mutual interference smoke backflow as described in claim 1 surpasses low NO, which is characterized in that the connection
Flange is equipped with screw hole, passes through bolt and connecting flange fixing assembling between the disturbing flow device, mixing arrangement and combustion barrel.
6. a kind of multistage mutual interference smoke backflow as described in claim 1 surpasses low NO, which is characterized in that the burning
The intermediate position of cylinder is circumferentially with elongated hole, and the one end for connecting stable flame pan is also circumferentially with elongated hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362646.4A CN108151016A (en) | 2017-12-18 | 2017-12-18 | A kind of multistage mutual interference smoke backflow surpasses low NO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362646.4A CN108151016A (en) | 2017-12-18 | 2017-12-18 | A kind of multistage mutual interference smoke backflow surpasses low NO |
Publications (1)
| Publication Number | Publication Date |
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| CN108151016A true CN108151016A (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711362646.4A Pending CN108151016A (en) | 2017-12-18 | 2017-12-18 | A kind of multistage mutual interference smoke backflow surpasses low NO |
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| CN (1) | CN108151016A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925762A (en) * | 2018-09-20 | 2020-03-27 | 东营市先达能源技术有限公司 | Premixing type low-nitrogen combustor |
| CN114216135A (en) * | 2021-12-01 | 2022-03-22 | 北京科技大学 | Based on CO2Circulating natural gas pure oxygen combustion zero-emission combustion system |
| CN114636152A (en) * | 2020-12-15 | 2022-06-17 | 杭州鸿和能源环境科技有限公司 | Multistage internal combustion type low-nitrogen combustor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001050513A (en) * | 1999-08-05 | 2001-02-23 | Osaka Gas Co Ltd | Gas burner |
| CN203336595U (en) * | 2013-06-08 | 2013-12-11 | 杨维民 | Gas spray gun |
| CN106568083A (en) * | 2016-11-07 | 2017-04-19 | 北京航天石化技术装备工程有限公司 | Side wall low-nitric-oxide gas burner of cracking furnace |
| CN106949471A (en) * | 2017-04-19 | 2017-07-14 | 安德森热能科技（苏州）有限责任公司 | A kind of multistage premix burner of low emission cool flame |
| CN107461736A (en) * | 2017-09-18 | 2017-12-12 | 北京富士特锅炉有限公司 | A kind of gas industry boiler smoke recycling denitration and air preheating system |
-
2017
- 2017-12-18 CN CN201711362646.4A patent/CN108151016A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001050513A (en) * | 1999-08-05 | 2001-02-23 | Osaka Gas Co Ltd | Gas burner |
| CN203336595U (en) * | 2013-06-08 | 2013-12-11 | 杨维民 | Gas spray gun |
| CN106568083A (en) * | 2016-11-07 | 2017-04-19 | 北京航天石化技术装备工程有限公司 | Side wall low-nitric-oxide gas burner of cracking furnace |
| CN106949471A (en) * | 2017-04-19 | 2017-07-14 | 安德森热能科技（苏州）有限责任公司 | A kind of multistage premix burner of low emission cool flame |
| CN107461736A (en) * | 2017-09-18 | 2017-12-12 | 北京富士特锅炉有限公司 | A kind of gas industry boiler smoke recycling denitration and air preheating system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925762A (en) * | 2018-09-20 | 2020-03-27 | 东营市先达能源技术有限公司 | Premixing type low-nitrogen combustor |
| CN114636152A (en) * | 2020-12-15 | 2022-06-17 | 杭州鸿和能源环境科技有限公司 | Multistage internal combustion type low-nitrogen combustor |
| CN114216135A (en) * | 2021-12-01 | 2022-03-22 | 北京科技大学 | Based on CO2Circulating natural gas pure oxygen combustion zero-emission combustion system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180612 |
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| RJ01 | Rejection of invention patent application after publication |