CN107965767A - 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
- CN107965767A CN107965767A CN201711194223.6A CN201711194223A CN107965767A CN 107965767 A CN107965767 A CN 107965767A CN 201711194223 A CN201711194223 A CN 201711194223A CN 107965767 A CN107965767 A CN 107965767A
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title abstract description 45
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 title abstract description 7
- 239000007921 spray Substances 0.000 abstract description 35
- 239000000779 smoke Substances 0.000 abstract description 5
- 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 7
- 239000003546 flue gas Substances 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 230000004044 response Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 238000010438 heat treatment 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
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 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
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
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
-
- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting, the fuel gun includes a branch center rifle, one group of branch rifle and an altar lamp, for branch rifle with center rifle center and circumferentially distributed around its, 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, have two spray orifices on the bulb of center rifle, and the plane that the central axis of two spray orifices was located at center rifle central axis is interior and identical with the central axis angle of center rifle；There are two spray orifices 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 angle with the central axis of branch rifle for the central axis of two spray orifices, two spray orifices of fuel, which spray, subsequently points 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 the role of smoke backflow.
Description
Technical field
The present invention relates to petroleum refining equipment technical field, and in particular to the fuel gun that Furnace burner uses,
For reducing the oxynitride discharge concentration of burner combustion generation.
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 produced in burner after gas fuel burning
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 only has a spray orifice, and stable flow field is hardly formed in combustion chamber.
Therefore there is an urgent need for the fuel gun structure of burner is improved.
The content of the invention
In view of this, should the present invention provides a kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting
Fuel gun can adapt to the demand of the low nitrogen transformation of Petrochemical Enterprises Furnace burner, and burner can meet after work
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, for the branch rifle with center rifle center and circumferentially distributed around its, 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, have two sprays 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；There are two spray orifices, the central axis of two spray orifices was located at the plane of center rifle central axis 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 orifices of fuel, which spray, subsequently points 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.
Beneficial effect：
Three strands of fuel that the present invention is sprayed using spray orifice on center rifle and side rifle form one, two, three with air burning respectively
Steady flame is played in secondary response area, primary first-order equation area, and fuel staging is played in secondary response area, and third-order reaction area plays flue gas and returns
The effect of stream, the fuel of each reaction zone match each other, and both can guarantee that flameholding, moreover it is possible to ensure that a certain proportion of flue gas returns
Stream, fuel can fully and completely burn, and the oxynitrides of combustion product is substantially reduced relative to conventional combustion gun, is promoted
Into the nitrogen oxides emission reduction of burner.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
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.
Embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, used the present invention provides a kind of Furnace burner and bypass low-nitrogen discharged fuel gun of lighting a fire,
The fuel gun includes shell 5,2, one groups of branch rifles 3 of a branch center rifle and an altar lamp 2, the branch rifle 3 with 2 center of center rifle simultaneously
Circumferentially distributed around its, 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 3 with
The function of igniting is realized in region between heart rifle 2；Air inlet pipe is unified to supply branch rifle 3 and center rifle 2；Center rifle pipette tips
Lower section installation stable flame cover 4, fuel gun entirely through 5 top of shell flange arrangement be installed on heating furnace 6 mounting hole on.
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
There are two spray orifices 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 °；There are two spray orifices, the central axis of two spray orifices was located in the rifle of center 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 orifices of fuel, which spray, subsequently points 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 once
Fuel can produce 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 constitutes about the 30% of total fuel, 30% secondary fuel and
Air reaction can form poor fuel cryogenic conditions, and low temperature suppresses 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 thing to hypoxic effect condition, hypoxemia
Suppress NOxGeneration.
The fuel gun of the present invention surely flame but also emission reduction nitrogen oxides, steady flame can ensure that economy (high combustion efficiency),
Emission reduction ensure that the feature of environmental protection.
In conclusion the foregoing is merely a prefered embodiment of the invention, it is not intended to limit the scope of the present invention.
Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of Furnace burner low-nitrogen discharged fuel gun of bypass igniting, it is characterised in that the fuel gun includes one
Branch center rifle, one group of branch rifle and an altar lamp, with center rifle center and circumferentially distributed around its, the altar lamp is set the branch rifle
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, have two spray orifices on the bulb of the center rifle,
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
Stating has two spray orifices in the pipette tips of branch rifle, the central axis of two spray orifices was 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 orifices of fuel, which spray, subsequently points 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 claimed in claim 1 is lighted a fire, it is characterised 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 claimed in claim 1 is lighted a fire, it is characterised 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 |
|---|---|---|---|
| CN201711194223.6A CN107965767B (en) | 2017-11-24 | 2017-11-24 | Bypass ignition low-nitrogen emission fuel gun for process heating furnace burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194223.6A CN107965767B (en) | 2017-11-24 | 2017-11-24 | Bypass ignition low-nitrogen emission fuel gun for process heating furnace burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107965767A true CN107965767A (en) | 2018-04-27 |
| CN107965767B CN107965767B (en) | 2024-01-05 |
Family
ID=61997756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711194223.6A Active CN107965767B (en) | 2017-11-24 | 2017-11-24 | Bypass ignition low-nitrogen emission fuel gun for process heating furnace burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107965767B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030148236A1 (en) * | 2002-02-05 | 2003-08-07 | Joshi Mahendra Ladharam | Ultra low NOx burner for process heating |
| JP2009204285A (en) * | 2008-02-29 | 2009-09-10 | Electric Power Dev Co Ltd | Burner and its operation method |
| CN101694297A (en) * | 2009-10-23 | 2010-04-14 | 洛阳瑞昌石油化工设备有限公司 | Forced-draft burner and method for regularizing side-combustion high-temperature preheated air of square-box furnace |
| CN201844402U (en) * | 2010-11-08 | 2011-05-25 | 洛阳瑞昌石油化工设备有限公司 | Low NOx (nitrogen oxide) burner for burning heavy hydroxyl type fuel gas |
| CN205447747U (en) * | 2016-03-15 | 2016-08-10 | 河南方圆工业炉设计制造有限公司 | Ultralow NOx combustor of hot flue gas self -loopa type |
| CN205842669U (en) * | 2016-07-20 | 2016-12-28 | 岳阳恒盛石化科技有限公司 | A kind of low NOx oil and gas combination burner |
| CN106642114A (en) * | 2016-11-15 | 2017-05-10 | 西安西热锅炉环保工程有限公司 | Ultra-low-nitrogen gas combustor with gun head self-combustion-stabilization devices |
| CN106931437A (en) * | 2017-03-28 | 2017-07-07 | 长沙理工大学 | A kind of low NOx gas burners with air conducting cover |
| CN207599705U (en) * | 2017-11-24 | 2018-07-10 | 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 CN201711194223.6A patent/CN107965767B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030148236A1 (en) * | 2002-02-05 | 2003-08-07 | Joshi Mahendra Ladharam | Ultra low NOx burner for process heating |
| JP2009204285A (en) * | 2008-02-29 | 2009-09-10 | Electric Power Dev Co Ltd | Burner and its operation method |
| CN101694297A (en) * | 2009-10-23 | 2010-04-14 | 洛阳瑞昌石油化工设备有限公司 | Forced-draft burner and method for regularizing side-combustion high-temperature preheated air of square-box furnace |
| CN201844402U (en) * | 2010-11-08 | 2011-05-25 | 洛阳瑞昌石油化工设备有限公司 | Low NOx (nitrogen oxide) burner for burning heavy hydroxyl type fuel gas |
| CN205447747U (en) * | 2016-03-15 | 2016-08-10 | 河南方圆工业炉设计制造有限公司 | Ultralow NOx combustor of hot flue gas self -loopa type |
| CN205842669U (en) * | 2016-07-20 | 2016-12-28 | 岳阳恒盛石化科技有限公司 | A kind of low NOx oil and gas combination burner |
| CN106642114A (en) * | 2016-11-15 | 2017-05-10 | 西安西热锅炉环保工程有限公司 | Ultra-low-nitrogen gas combustor with gun head self-combustion-stabilization devices |
| CN106931437A (en) * | 2017-03-28 | 2017-07-07 | 长沙理工大学 | A kind of low NOx gas burners with air conducting cover |
| CN207599705U (en) * | 2017-11-24 | 2018-07-10 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107965767B (en) | 2024-01-05 |
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