CN207599705U - A kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting - Google Patents
A kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting Download PDFInfo
- Publication number
- CN207599705U CN207599705U CN201721602493.1U CN201721602493U CN207599705U CN 207599705 U CN207599705 U CN 207599705U CN 201721602493 U CN201721602493 U CN 201721602493U CN 207599705 U CN207599705 U CN 207599705U
- Authority
- CN
- China
- Prior art keywords
- rifle
- center
- central axis
- branch
- fuel
- 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- Withdrawn - After Issue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 52
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 44
- 239000000779 smoke Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 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
- 230000009467 reduction Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000003134 recirculating effect Effects 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 235000019504 cigarettes Nutrition 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
- -1 eject momentum foot Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 230000001146 hypoxic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 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
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses a kind of Furnace burner low-nitrogen discharged fuel guns of bypass igniting, the fuel gun includes a branch center rifle, one group of branch rifle and an altar lamp, branch rifle is with center rifle center and circumferentially distributed around its, and altar lamp is arranged on the function that igniting is realized in the region between branch rifle and center rifle；Center rifle and branch rifle are the cavity structures that top is bulb, and there are two spray orifice, the central axis of two spray orifices was located in the plane of center rifle central axis and identical with the central axis angle of center rifle tool on the bulb of center rifle；There are two spray orifices for tool in the pipette tips of branch rifle, the central axis of two spray orifices was located in the plane of center rifle central axis, two spray orifices are located at the top and side of pipette tips respectively, there are angles with the central axis of branch rifle for the central axis of two spray orifices, two spray orifice ejections of fuel subsequently point to center rifle, the fuel that center rifle sprays plays the role of steady flame and fuel staging, and the fuel that side rifle sprays plays smoke backflow.
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 perform 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 NOx≤150mg/Nm3@
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 burnt after altar lamp is lighted, and therefore, fuel gas is
No 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 bypass igniting
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 Furnace burner is lighted a fire low-nitrogen discharged fuel gun with bypass, the fuel gun include a branch center rifle,
One group of branch rifle and an altar lamp, the branch rifle is with center rifle center and circumferentially distributed around its, and the altar lamp is arranged on branch rifle
The function of igniting is realized in region between the rifle of center；
The center rifle and branch rifle are the cavity structures that top is bulb, and there are two spray for tool on the bulb of the center rifle
Hole, the central axis of two spray orifices be located in the plane of center rifle central axis and with the central axis angle phase of center rifle
Together；Spray orifice, the central axis of two spray orifices to be located at the plane of center rifle central axis there are two tools in the pipette tips of the branch rifle
Interior, two spray orifices are located at the top and side of pipette tips respectively, and the central axis of two spray orifices exists with the central axis of branch rifle
Angle, two spray orifice ejections of fuel subsequently point to center rifle, and the fuel that the center rifle sprays plays the role of steady flame and fuel staging,
The fuel that side rifle sprays plays the role of smoke backflow.
Further, two orifice center axis of the center rifle and the angle of center rifle central axis are 6~10 °,
The branch rifle position is 6~10 ° in the central axis of pipette tips top spray orifice and the central axis angle of branch rifle, and branch rifle position is in pipette tips side
The central axis of square spray orifice and the central axis angle of branch rifle are 15~20 °.
Further, the lower section installation stable flame cover of the center rifle pipette tips.
Advantageous effect：
Three strands of fuel that the utility model is sprayed using spray orifice on center rifle and side rifle form one with air burning respectively,
2nd, steady flame is played in third-order reaction area, primary first-order equation area, and fuel staging is played in secondary response area, and third-order reaction area rises
The effect of smoke backflow, the fuel of each reaction zone match each other, and both can guarantee flameholding, moreover it is possible to ensure a certain proportion of cigarette
Gas flows back, and fuel can fully and completely burn, and the oxynitrides of combustion product is significantly dropped relative to conventional combustion gun
It is low, promote the nitrogen oxides emission reduction of burner.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Rifle pipette tips structure sectional view centered on Fig. 2；
Fig. 3 is branch rifle pipette tips structure sectional view.
Wherein, 1- altar lamps, 2- centers rifle, 3- branch rifle, 4- stable flame covers, 5- shells, 6- heating furnaces, 7- air inlet pipe.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
As shown in Figure 1, the utility model provides a kind of low-nitrogen discharged combustion of Furnace burner bypass igniting
Spray gun, the fuel gun include shell 5,2, one groups of branch rifles 3 of a branch center rifle and an altar lamp 2, and the branch rifle 3 is with center rifle 2
Center is simultaneously circumferentially distributed around its, and altar lamp 1, branch rifle 3 and center rifle 2 are each attached to the bottom of shell 5, and altar lamp is arranged on branch rifle
The function of igniting is realized in region between 3 and center rifle 2；Air inlet pipe is unified to supply branch rifle 3 and center rifle 2；Center
The lower section installation stable flame cover 4 of rifle pipette tips, fuel gun are mounted on the installation of heating furnace 6 entirely through the flange arrangement on 5 top of shell
Kong Shang.
As shown in Figures 2 and 3, center rifle 2 and branch rifle 3 be top be bulb cavity structure, the ball of the center rifle 2
Tool is there are two spray orifice on head, the central axis of two spray orifices be located in the plane of center rifle central axis and with center rifle 2
Central axis angle is 10 °；Spray orifice, the central axis of two spray orifices to be located in the rifle of center there are two tools in the pipette tips of branch rifle 3
In the plane of mandrel line, two spray orifices are located at the top and side of pipette tips, central axis and the branch rifle 3 of pipette tips top spray orifice respectively
Central axis angle be 10 °, branch rifle position is 20 ° in the central axis of pipette tips side spray orifice and the central axis angle of branch rifle.
Two spray orifice ejections of fuel subsequently point to center rifle, and the fuel that center rifle sprays plays the role of steady flame and fuel staging, and side rifle sprays
Fuel play the role of smoke backflow.
Three strands of fuel on center rifle and side rifle form one, two, three reaction zone with air burning respectively, these three reactions
The effect in area is different.
Play steady flame in primary first-order equation area.Ratio that primary fuel accounts for total fuel is small, eject momentum is low, and low-momentum is primary
Fuel can generate semistall recirculating zone in 4 region of stable flame cover, and stable flame is played the role of in these stagnation recirculating zones.
Play fuel staging in secondary response area.Secondary fuel accounts about the 30% of total fuel, 30% secondary fuel and
Air reaction can form poor fuel cryogenic conditions, and low temperature inhibits NOxGeneration；On the other hand, 30% secondary fuel and air reaction
Oxygen deprivation flue gas can be formed, oxygen deprivation flue gas enters the oxidant that downstream becomes third-order reaction area, which has certain temperature, can
Directly to light fuel three times.
Play smoke backflow in third-order reaction area.Fuel accounts for more than half of total fuel, eject momentum foot, injection three times
Speed is high, and the Induced hyperthermia of the fuel jet three times smoke backflow of high speed promotes backflow flue gas and fire three times to third-order reaction area
The quick mixing of material, secondary response area oxygen deprivation flue gas, the mixing of backflow flue gas understand diluting reaction object to hypoxic effect condition, hypoxemia
Inhibit NOxGeneration.
The fuel gun of the utility model surely flame but also emission reduction nitrogen oxides, steady flame can ensure that economy (efficiency of combustion
It is high), emission reduction ensure that the feature of environmental protection.
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 Furnace burner low-nitrogen discharged fuel gun of bypass igniting, which is characterized in that the fuel gun includes one
Branch center rifle, one group of branch rifle and an altar lamp, the branch rifle is with center rifle center and circumferentially distributed around its, and the altar lamp is set
Put the function that igniting is realized in the region between branch rifle and center rifle；
The center rifle and branch rifle are the cavity structures that top is bulb, are had on the bulb of the center rifle there are two spray orifice,
The central axis of two spray orifices was located in the plane of center rifle central axis and identical with the central axis angle of center rifle；Institute
It states in the pipette tips of branch rifle and has there are two spray orifice, the central axis of two spray orifices to be located in the plane of center rifle central axis, and two
A spray orifice is located at the top and side of pipette tips respectively, the central axis of two spray orifices and the central axis of branch rifle there are angle,
Two spray orifice ejections of fuel subsequently point to center rifle, and the fuel that the center rifle sprays plays the role of steady flame and fuel staging, side rifle
The fuel of ejection plays the role of smoke backflow.
The low-nitrogen discharged fuel gun 2. bypass as described in claim 1 is lighted a fire, which is characterized in that two spray orifices of the center rifle
The angle of central axis and center rifle central axis is 6~10 °, and the branch rifle position is in the central axis and branch of pipette tips top spray orifice
The central axis angle of rifle is 6~10 °, and branch rifle position is in the central axis of pipette tips side spray orifice and the central axis angle of branch rifle
15~20 °.
The low-nitrogen discharged fuel gun 3. bypass as described in claim 1 is lighted a fire, which is characterized in that the lower section of the center rifle pipette tips
Stable flame cover is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602493.1U CN207599705U (en) | 2017-11-24 | 2017-11-24 | A kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602493.1U CN207599705U (en) | 2017-11-24 | 2017-11-24 | A kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207599705U true CN207599705U (en) | 2018-07-10 |
Family
ID=62760507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721602493.1U Withdrawn - After Issue CN207599705U (en) | 2017-11-24 | 2017-11-24 | A kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207599705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965767A (en) * | 2017-11-24 | 2018-04-27 | 北京拓首能源科技股份有限公司 | A kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting |
-
2017
- 2017-11-24 CN CN201721602493.1U patent/CN207599705U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965767A (en) * | 2017-11-24 | 2018-04-27 | 北京拓首能源科技股份有限公司 | A kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting |
| CN107965767B (en) * | 2017-11-24 | 2024-01-05 | 北京拓首能源科技股份有限公司 | Bypass 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 | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180710 Effective date of abandoning: 20240105 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180710 Effective date of abandoning: 20240105 |