CN207661771U - A kind of low-nitrogen discharged fuel gun of Furnace burner center fire - Google Patents
A kind of low-nitrogen discharged fuel gun of Furnace burner center fire Download PDFInfo
- Publication number
- CN207661771U CN207661771U CN201721602529.6U CN201721602529U CN207661771U CN 207661771 U CN207661771 U CN 207661771U CN 201721602529 U CN201721602529 U CN 201721602529U CN 207661771 U CN207661771 U CN 207661771U
- Authority
- CN
- China
- Prior art keywords
- altar lamp
- fuel
- bulb
- branch
- spray orifice
- 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- Withdrawn - After Issue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
- 239000000446 fuel Substances 0.000 title claims abstract description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 11
- 239000007921 spray Substances 0.000 claims abstract description 36
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000005504 petroleum refining Methods 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 208000018875 hypoxemia Diseases 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model discloses a kind of low-nitrogen discharged fuel gun of Furnace burner center fire, which includes an altar lamp and one group of branch rifle, and the branch rifle is centered on altar lamp and circumferentially distributed around its；Branch rifle is the cavity structure that top is bulb, there are three spray orifices for tool on bulb, three spray orifices were distributed on a camber line on bulb vertex, intermediate spray orifice is located at the top of bulb, fuel is consistent with the central axis of branch rifle from the direction after the ejection of intermediate spray orifice, fuel is sprayed from the remaining inclined divergent shape of two spray orifices, and for an injection direction towards altar lamp, another injection direction is away from altar lamp direction.The utility model can adapt to the demand of the low nitrogen transformation of Petrochemical Enterprises Furnace burner, and burner can meet NOx≤150mg/Nm after work3@3.5%O2Emission request.
Description
Technical field
The utility model is related to petroleum refining equipment technical fields, and in particular to the fuel that Furnace burner uses
Rifle, the oxynitride discharge concentration generated for reducing burner combustion.
Background technology
The GB31570-2015 of newest promulgation《Petroleum refining industry pollutant emission standard》It is required that existing petroleum refining and
The Furnace of chemical enterprise (hereinafter referred to as Petrochemical Enterprises) will execute NOx≤150mg/Nm from 1 day July in 20173@
3.5%O2Emission limit.
The conventional burners that the Furnace of existing Petrochemical Enterprises uses cannot still reach the mg/Nm of NOx≤1503@
3.5%O2Emission request, heating furnace discharge exhaust gas mostly come from the nitrogen oxygen generated after gas fuel burning in burner
Compound, fuel gas are sprayed into combustion chamber by combustion gun and are burnt after altar lamp is lighted, and therefore, fuel gas is
It is no that can to reach fully burning be to determine emission prerequisite whether up to standard, and can fuel gas fully burn and burn
Indoor atmosphere and flow field are closely related, and conventional combustion gun is hardly formed stable flow field only there are one spray orifice in combustion chamber.
Therefore there is an urgent need for the fuel gun structures to burner to be improved.
Utility model content
In view of this, the utility model provides a kind of low-nitrogen discharged fuel of Furnace burner center fire
Rifle, the fuel gun can adapt to the demand of the low nitrogen transformation of Petrochemical Enterprises Furnace burner, and burner can after work
To meet NOx≤150mg/Nm3@3.5%O2Emission request.
A kind of low-nitrogen discharged fuel gun of Furnace burner center fire, the fuel gun include altar lamp and
One group of branch rifle, the branch rifle are centered on altar lamp and circumferentially distributed around its；
The branch rifle is the cavity structure that top is bulb, is had on bulb there are three spray orifice, three spray orifices were distributed in ball
On one camber line of crown point, intermediate spray orifice is located at the top of bulb, fuel from after the ejection of intermediate spray orifice direction and branch rifle
Central axis it is consistent, fuel is sprayed from the inclined divergent shape of remaining two spray orifices, and an injection direction is another towards altar lamp
A injection direction is away from altar lamp direction.
Further, the central axis of the intermediate spray orifice and the central axis angle of branch rifle are 4~6 °, injection direction court
Angle to the central axis and the central axis of branch rifle of the spray orifice of altar lamp is 12~18 °, and injection direction deviates from altar lamp side
To the central axis of spray orifice and the angle of branch rifle central axis be 22~28 °.
Further, the branch rifle and altar lamp are fitted and fixed to together by pedestal.
Advantageous effect：
Altar lamp is arranged in center the fuel gun of the utility model, branch rifle using inwardly, it is vertical upward, three kinds outwardly
Injection direction forms three reaction zones in combustion zone, and the fuel of reaction zone matches each other, and both can guarantee flameholding, moreover it is possible to
Ensure that a certain proportion of smoke backflow, fuel can fully and completely burn, the oxynitrides of combustion product is relative to normal
The combustion gun of rule is substantially reduced, and promotes the nitrogen oxides emission reduction of burner.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the vertical view of branch rifle and altar lamp in Fig. 1；
Fig. 3 is the sectional view on branch rifle top；
Fig. 4 is the vertical view on branch rifle top.
Wherein, 1- branch rifle, 2- altar lamps, 3- pedestals.
Specific implementation mode
With reference to the accompanying drawings and examples, the utility model is described in detail.
As shown in figure 1 and 2, it is low-nitrogen discharged to provide a kind of Furnace burner center fire for the utility model
Fuel gun, the fuel gun include an altar lamp 2 and six branch rifles 1；Six branch rifles 1 are circumferentially divided centered on altar lamp 2 around it
Cloth, altar lamp 2 and six branch rifles 1 are installed together by pedestal 3, in order to keep the stability between branch rifle 1 and altar lamp 2,
Stable disk is installed in middle and upper part to fix the relative position between branch rifle 1 and altar lamp 2.
As shown in figures 3 and 4, branch rifle 1 is the cavity structure that top is bulb, is had on bulb there are three spray orifice, three spray
On a camber line for crossing bulb vertex, intermediate spray orifice is located at the top of bulb for pore size distribution, the central axis of intermediate spray orifice and
The central axis angle of branch rifle is 6 °, and fuel plays the role of smoke backflow after spray orifice ejection.
Fuel is sprayed from the remaining inclined divergent shape of two spray orifices, and towards altar lamp 2, another is sprayed an injection direction
Direction is away from 2 direction of altar lamp.Injection direction is towards the central axis of the spray orifice of altar lamp 2 and the central axis of branch rifle 1
Angle is 15 °, and fuel plays the role of stable flame after spray orifice ejection, and injection direction deviates from the spray orifice in 2 direction of altar lamp
The angle of central axis and 1 central axis of branch rifle be 25 °, fuel plays the work being classified to fuel after spray orifice ejection
With.
Operation principle：
The reaction zone that the spray orifice of injection direction towards altar lamp 2 is formed plays steady flame：Primary fuel accounts for total fuel
Ratio is small, eject momentum is low, low-momentum primary fuel is centripetal converge after will produce semistall recirculating zone, these stagnation recirculating zones
Play the role of stable flame.
Injection direction is that the reaction zone that the spray orifice away from 2 direction of altar lamp is formed plays fuel staging：Secondary fuel
The 30% of total fuel is accounted about, 30% secondary fuel and air reaction can form poor fuel cryogenic conditions, and low temperature inhibits NOxIt is raw
At；On the other hand, 30% secondary fuel and air reaction can form oxygen deprivation flue gas, and oxygen deprivation flue gas, which enters downstream, becomes smoke backflow
The oxidant in area, the oxidant have certain temperature, can directly light fuel three times.
The reaction zone that intermediate spray orifice is formed plays smoke backflow：Fuel accounts for more than half of total fuel three times, spray
Momentum foot, jet velocity height are penetrated, the Induced hyperthermia of the fuel jet three times smoke backflow of high speed promotes to flow back to third-order reaction area
The mixing of the quick mixing of flue gas and three times fuel, secondary response area oxygen deprivation flue gas, backflow flue gas understands diluting reaction object to hypoxemia
Reaction condition, hypoxemia inhibit NOxIt generates.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection domain.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (3)
1. a kind of low-nitrogen discharged fuel gun of Furnace burner center fire, which is characterized in that the fuel gun includes one
Branch altar lamp and one group of branch rifle, the branch rifle are centered on altar lamp and circumferentially distributed around its；
The branch rifle is the cavity structure that top is bulb, is had on bulb there are three spray orifice, three spray orifices were distributed in bulb top
On one camber line of point, intermediate spray orifice is located at the top of bulb, and fuel is from the direction and branch rifle after the ejection of intermediate spray orifice
Mandrel line is consistent, and fuel is sprayed from the remaining inclined divergent shape of two spray orifices, and towards altar lamp, another is sprayed an injection direction
It is away from altar lamp direction to penetrate direction.
2. low-nitrogen discharged fuel gun as described in claim 1, which is characterized in that the central axis of the intermediate spray orifice and branch rifle
Central axis angle be 4~6 °, folder of the injection direction towards the central axis of the spray orifice of altar lamp and the central axis of branch rifle
Angle is 12~18 °, the central axis of spray orifice and the angle of branch rifle central axis of the injection direction away from altar lamp direction be 22~
28°。
3. low-nitrogen discharged fuel gun as claimed in claim 2, which is characterized in that the branch rifle and altar lamp are carried out by pedestal
It is fitted and fixed to together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602529.6U CN207661771U (en) | 2017-11-24 | 2017-11-24 | A kind of low-nitrogen discharged fuel gun of Furnace burner center fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602529.6U CN207661771U (en) | 2017-11-24 | 2017-11-24 | A kind of low-nitrogen discharged fuel gun of Furnace burner center fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207661771U true CN207661771U (en) | 2018-07-27 |
Family
ID=62946342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721602529.6U Withdrawn - After Issue CN207661771U (en) | 2017-11-24 | 2017-11-24 | A kind of low-nitrogen discharged fuel gun of Furnace burner center fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207661771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990315A (en) * | 2017-11-24 | 2018-05-04 | 北京拓首能源科技股份有限公司 | A kind of low-nitrogen discharged fuel gun of Furnace burner center fire |
-
2017
- 2017-11-24 CN CN201721602529.6U patent/CN207661771U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990315A (en) * | 2017-11-24 | 2018-05-04 | 北京拓首能源科技股份有限公司 | A kind of low-nitrogen discharged fuel gun of Furnace burner center fire |
| CN107990315B (en) * | 2017-11-24 | 2024-01-05 | 北京拓首能源科技股份有限公司 | Central ignition low-nitrogen emission fuel gun for process heating furnace burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180727 Effective date of abandoning: 20240105 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180727 Effective date of abandoning: 20240105 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |