CN207247201U - A kind of ultralow nitrogen gas burner - Google Patents
A kind of ultralow nitrogen gas burner Download PDFInfo
- Publication number
- CN207247201U CN207247201U CN201721183623.2U CN201721183623U CN207247201U CN 207247201 U CN207247201 U CN 207247201U CN 201721183623 U CN201721183623 U CN 201721183623U CN 207247201 U CN207247201 U CN 207247201U
- Authority
- CN
- China
- Prior art keywords
- head
- combustion
- air
- nitrogen gas
- gas burner
- 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.)
- Withdrawn - After Issue
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910001873 dinitrogen Inorganic materials 0.000 title claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 claims abstract description 58
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229920000914 Metallic fiber Polymers 0.000 claims description 6
- 239000000567 combustion gas Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 24
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
A kind of ultralow nitrogen gas burner, suitable for station boiler, Industrial Boiler, petroleum chemical heating furnace ultralow nitrogen gas burner.Including driving nozzle, air ejector, combustion air passage, jet nozzle device, mixing swirl-flow devices, oxygen-enriched combusting head, reduction combustion head；Driving nozzle is located at the center of air ejector；Air ejector is located in combustion air passage, and front portion is connected through oxygen-enriched combusting head with reduction combustion head；Jet nozzle device is located on the outside of the air ejector in combustion air passage, with air ejector arranged concentric；Mixing swirl-flow devices are sleeved on jet nozzle device, concentric with jet nozzle device, and mixing swirl-flow devices can move axially on jet nozzle device；Oxygen-enriched combusting head and reduction combustion head use cylindrical structural, arranged concentric, and oxygen-enriched combusting head collectively constitutes the combustion head of ultralow nitrogen gas burner with reduction combustion head.Do not increasing excess air coefficient, while not reducing boiler efficiency, carrying out ultralow nitrogen discharged.Its is simple in structure, easy to use.
Description
Technical field
A kind of burner is the utility model is related to, it is especially a kind of to be suitable for station boiler, Industrial Boiler, petroleum chemical heating furnace
Ultralow nitrogen gas burner.
Background technology
In The Atmosphere Over China pollutes getting worse, and especially haze brings the live and work of the mankind very big puzzlement, seriously endangers
Human health.It is oxynitrides to cause one of main arch-criminal of atmosphere pollution, and it is very urgent to administer nitrogen oxides.Country carries
Go out clean combustion, create Blue Sky, and formulated related environmental protection standard, and discharged nitrous oxides are limited increasingly stringent.
Studied according to related data, the NOx that fuel gas buring produces is broadly divided into thermal NO x, Quick-type NOx and fuel type
NOx.Cause nitrogen, localized hyperthermia, the reason such as gas residence time, oxygen-enriched combusting in the mainly fuel of NOx generations.It is existing
Ultralow nitrogen technology is not under the conditions of boiler efficiency is reduced in the market, it is difficult to meets the requirement of the related environmental protection standard of country.
The content of the invention
Technical problem：The purpose of this utility model is to overcome shortcoming of the prior art, there is provided a kind of structure letter
List, can reduce discharged nitrous oxides under the conditions of boiler efficiency is not reduced, meet the ultralow nitrogen fuel gas buring of existing environmental requirement
Device.
Technical solution：The ultralow nitrogen gas burner of the utility model, including driving nozzle, air ejector, combustion air
Passage, jet nozzle device, mixing swirl-flow devices, oxygen-enriched combusting head, reduction combustion head；The driving nozzle is located at air ejection
The center of device, using velocity of sound jet stream；Air ejector is located in combustion air passage, and front portion is burnt through oxygen-enriched combusting head and reduction
Head is connected；The jet nozzle device is located on the outside of the air ejector in combustion air passage, with air ejector arranged concentric；
The mixing swirl-flow devices are sleeved on jet nozzle device, concentric with jet nozzle device, and mixing swirl-flow devices can be in jet stream
Moved axially on nozzle；The oxygen-enriched combusting head and reduction combustion head use cylindrical structural, arranged concentric, oxygen-enriched combusting head with
Reduction combustion head collectively constitutes the combustion head of ultralow nitrogen gas burner.
The oxygen-enriched combusting head is the metallic fiber sintered structure or metallic fiber stereo weaving that can premix surface burning
Structure.
The reduction combustion head is the axial nozzle or radial nozzles that can be diffused burning.
The air ejector for even circumferential inlet air, have can be sufficiently mixed air and the long mixing section of combustion gas, and
Venturi tube structure equipped with damper adjustment intake.
The nozzle of the jet nozzle device is evenly distributed with along cylindrical barrel, radial jet, and nozzle circumferentially arranges a circle or more
Circle.
The mixing swirl-flow devices are radial skew swirl vane structure, and blade horizontal tilt angle is 20~75 °.
Beneficial effect：The ultralow nitrogen gas burner of the utility model introduces advanced full premix surface burning concept,
Technology and the ingenious fusion of fuel reburning technology will be premixed entirely.Solves the ultralow nitrogen row that conventional low-NO_x combustion technology can't resolve
Put.All-premixing burner on the market all using excessive air distribution, reduces ignition temperature, and then reduce the row of nitrogen oxides substantially
Put.Compared with existing premix burner, the ultralow nitrogen gas burner of the utility model will premix technology entirely and fuel fires again
The ingenious fusion of technology.In single-stage combustion region, fuel, air premix excessive air distribution combustion entirely, and air is largely plentiful, this practicality is new
The ultralow nitrogen gas burner of type is 1.2 in excess air coefficient, is carried out ultralow nitrogen discharged.Fuel is divided into two level, is respectively one
Level fuel A and secondary fuel B, primary fuel A is uniformly premixed by mixing swirl-flow devices with air, rich in the progress of oxygen-enriched combusting head
Oxygen surface is burnt, and air is largely plentiful, and gas-air premix is uniform, and ignition temperature is less than 1300 DEG C of a large amount of NOx generations, level-one
The NOx of fuel A generations is less.Secondary fuel B mainly plays reduction, and secondary fuel B premixes a small amount of air or not premix air,
Reducing atmosphere is formed in combustion zone, the NOx that reduction level-one primary combustion zone has generated while suppressing itself NOx generations.
Do not increase excess air coefficient, while not reducing boiler efficiency, carry out ultralow nitrogen discharged.Its is simple in structure, easy to use,
There is wide applicability in the art.
Brief description of the drawings
Fig. 1 is the main structure diagram of the utility model.
Fig. 2 (a) is the schematic diagram for the radial nozzles structure that the utility model reduces combustion head.
Fig. 2 (b) is the schematic diagram for the axial nozzle arrangements that the utility model reduces combustion head.
Fig. 3 is the amplification nozzle arrangements figure of the utility model jet nozzle device.
In figure：1- driving nozzles, 2- air ejectors, 3- combustion airs passage, 4- jet nozzles device, 5- mixing eddy flow dress
Put, 6- oxygen-enriched combustings head, 7- reduction combustion head, 8- dampers, A- primary fuels, B- secondary fuels, the total combustion airs of C-
D- air, fuel premixed gas, E- level-ones combustion air, F- two level combustion airs.
Embodiment
Embodiment in below in conjunction with the accompanying drawings is further described the utility model：
The ultralow nitrogen gas burner of the utility model, mainly by driving nozzle 1, air ejector 2, combustion air passage 3,
Jet nozzle device 4, mixing swirl-flow devices 5, oxygen-enriched combusting are first 6, reduction combustion head 7 is formed；Fuel is divided into two level, is respectively one
Level fuel A and secondary fuel B, total combustion air C are also classified into two level, are respectively level-one combustion air E and two level combustion air F.
The driving nozzle 1 is located at the center of air ejector 2, using velocity of sound jet stream；Primary fuel A carries out height by driving nozzle 1
Rapid fire stream, the substantial amounts of air of injection.The air ejector 2 for even circumferential inlet air, have can be sufficiently mixed air and combustion
The long mixing section of gas, and equipped with the Venturi tube structure of the adjustment intake of damper 8；Air ejector 2 uses circumference inlet air knot
Structure, even circumferential open up multiple air-intake windows, enter air ejector 2 by the large quantity of air even circumferential of injection, pass through adjusting
Air door 8 adjusts intake, the reproducibility of adjustment secondary fuel B.Air ejector 2 is located in combustion air passage 3, and front portion passes through richness
Oxygen combustion head 6 is connected with reduction combustion head 7；The jet nozzle device 4 is located at outside the air ejector 2 in combustion air passage 3
Side, with 2 arranged concentric of air ejector, air ejector 2 is surveyed inside, and on the outside, the jet nozzle fills jet nozzle device 4
4 nozzle is put along cylindrical barrel is uniformly distributed, radial jet, nozzle circumferentially arranges a circle or multi-turn.5 sets of the swirl-flow devices of mixing
Concentric with jet nozzle device 4 on jet nozzle device 4, air, fuel premixed gas D are disturbed by mixing swirl-flow devices 5
Stream, which is uniformly mixed, enters oxygen-enriched combusting first 6.Mixing swirl-flow devices 5 can move axially on jet nozzle device 4, adjustment premix journey
Degree；The mixing swirl-flow devices 5 are radial skew swirl vane structure, and blade horizontal tilt angle is 20~75 °.The richness
Oxygen combustion head 6 and reduction combustion head 7 use cylindrical structural, arranged concentric, oxygen-enriched combusting first 6 and common group of combustion head 7 of reduction
Into the combustion head of ultralow nitrogen gas burner, the burning of premix surface is carried out.The oxygen-enriched combusting first 6 burns for that can premix surface
Metallic fiber sintered structure or metallic fiber stereo weaving structure；Reduction combustion head 7 includes two kinds of structures, and one kind is reduction combustion
The nozzle burnt on first 7 is radial nozzles, and a kind of is that the nozzle reduced on combustion head 7 is axial nozzle, using in two kinds of structures
Any type can meet the purpose of this utility model.
The ultralow nitrogen gas burner of the utility model introduces advanced full premix surface burning concept, solves routine
Low-NO_x combustion technology can't resolve ultralow nitrogen discharged.All-premixing burner on the market all using excessive air distribution, reduces substantially
Ignition temperature, and then reduce the discharge of nitrogen oxides.Compared with other all-premixing burners, the ultralow nitrogen combustion gas of the utility model
Burner will premix technology and the ingenious fusion of fuel reburning technology entirely.In single-stage combustion region, fuel, air premix excessive match somebody with somebody entirely
Wind burns, and air is largely plentiful, and ignition temperature is less less than a large amount of NOx generation temperature, the NOx of primary fuel A generations.Two level is fired
Material B mainly plays reduction, the NOx that reduction level-one primary combustion zone has generated while suppressing itself NOx generations.This practicality is new
The ultralow nitrogen gas burner of type is 1.2 in excess air coefficient, is carried out ultralow nitrogen discharged.
Claims (6)
- A kind of 1. ultralow nitrogen gas burner, it is characterised in that：It includes driving nozzle（1）, air ejector（2）, combustion air Passage（3）, jet nozzle device（4）, mixing swirl-flow devices（5）, oxygen-enriched combusting head（6）, reduction combustion head（7）；The injection Nozzle（1）It is located at air ejector（2）Center, using velocity of sound jet stream；Air ejector（2）It is located at combustion air passage（3）It is interior, Front portion passes through oxygen-enriched combusting head（6）With reducing combustion head（7）It is connected；The jet nozzle device（4）It is located at combustion air passage（3） Interior air ejector（2）Outside, with air ejector（2）Arranged concentric；The mixing swirl-flow devices（5）It is sleeved on jet stream spray Mouth device（4）On, with jet nozzle device（4）With one heart, swirl-flow devices are mixed（5）Can be in jet nozzle device（4）Upper axial shifting It is dynamic；The oxygen-enriched combusting head（6）With reduction combustion head（7）Using cylindrical structural, arranged concentric, oxygen-enriched combusting head（6）With also Former combustion head（7）Collectively constitute the combustion head of ultralow nitrogen gas burner.
- 2. ultralow nitrogen gas burner according to claim 1, it is characterised in that：The oxygen-enriched combusting head（6）For energy Premix the metallic fiber sintered structure or metallic fiber stereo weaving structure of surface burning.
- 3. ultralow nitrogen gas burner according to claim 1, it is characterised in that：The reduction combustion head（7）For energy It is diffused the axial nozzle or radial nozzles of burning.
- 4. ultralow nitrogen gas burner according to claim 1, it is characterised in that：The air ejector（2）For circle All uniform air intakes, have and can be sufficiently mixed air and the long mixing section of combustion gas, and is furnished with damper（8）Adjust the text of intake Structure in mound.
- 5. ultralow nitrogen gas burner according to claim 1, it is characterised in that：The jet nozzle device（4）Spray Mouth is evenly distributed with along cylindrical barrel, radial jet, and nozzle circumferentially arranges a circle or multi-turn.
- 6. ultralow nitrogen gas burner according to claim 1, it is characterised in that：The mixing swirl-flow devices（5）For Radial skew swirl vane structure, blade horizontal tilt angle are 20~75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721183623.2U CN207247201U (en) | 2017-09-15 | 2017-09-15 | A kind of ultralow nitrogen gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721183623.2U CN207247201U (en) | 2017-09-15 | 2017-09-15 | A kind of ultralow nitrogen gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207247201U true CN207247201U (en) | 2018-04-17 |
Family
ID=61888847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721183623.2U Withdrawn - After Issue CN207247201U (en) | 2017-09-15 | 2017-09-15 | A kind of ultralow nitrogen gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207247201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543160A (en) * | 2017-09-15 | 2018-01-05 | 徐州科融环境资源股份有限公司 | A kind of ultralow nitrogen gas burner |
-
2017
- 2017-09-15 CN CN201721183623.2U patent/CN207247201U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543160A (en) * | 2017-09-15 | 2018-01-05 | 徐州科融环境资源股份有限公司 | A kind of ultralow nitrogen gas burner |
| CN107543160B (en) * | 2017-09-15 | 2024-04-30 | 徐州燃烧控制研究院有限公司 | Ultralow nitrogen gas burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20240430 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20240430 |