CN110360559A - The ultralow nitrogen energy-saving burner of industrial combustion gas - Google Patents
The ultralow nitrogen energy-saving burner of industrial combustion gas Download PDFInfo
- Publication number
- CN110360559A CN110360559A CN201810308727.4A CN201810308727A CN110360559A CN 110360559 A CN110360559 A CN 110360559A CN 201810308727 A CN201810308727 A CN 201810308727A CN 110360559 A CN110360559 A CN 110360559A
- Authority
- CN
- China
- Prior art keywords
- air
- storehouse
- smoke
- combustion gas
- heat reflux
- 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.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 23
- 239000000567 combustion gas Substances 0.000 title claims abstract description 21
- 239000000779 smoke Substances 0.000 claims abstract description 49
- 238000010992 reflux Methods 0.000 claims abstract description 26
- 239000000446 fuel Substances 0.000 claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 15
- 239000003546 flue gas Substances 0.000 abstract description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- 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
- F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
-
- 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
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
-
- 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
- F23C2202/00—Fluegas recirculation
- F23C2202/10—Premixing fluegas with fuel and combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses the ultralow nitrogen energy-saving burners of industrial combustion gas, belong to gas combustion apparatus technical field, including air-fuel room, and air heat reflux storehouse is circumferentially arranged above air-fuel room, and the bottom in air heat reflux storehouse is connected with air-fuel room；Center setting premix barrel in air heat reflux storehouse, the bottom of premix barrel is connected with air-fuel room；Smoke backflow hole is set in a row in premix barrel pipe shaft, and a smoke absorption ring is welded in the lower section on the inside of each smoke discharging return port.The present invention sucks the flue gas in smoke backflow storehouse by force using the principle of differential pressure of airplane wings by setting smoke absorption ring, forms the self-loopa of flue gas, flue gas recirculation amount is up to 30%；By setting air heat reflux storehouse and cooling ring, the temperature of entire flame is reduced, to achieve the effect that reduce nitrogen oxides, while the temperature of combustion air being enable to be promoted (100 DEG C or so), realize energy conservation.
Description
Technical field
The invention belongs to gas combustion apparatus technical fields, and in particular to the ultralow nitrogen energy-saving burner of industrial combustion gas.
Background technique
Currently, to achieve the effect that energy efficiency, drop nitrogen, being all using moment in terms of energy efficiency in industrial production
The two ways that air-fuel is mixed and premixed in advance, and both modes will cause air excess and lack of air, cause flue gas
It takes away a large amount of thermal energy and combustion gas is thermally decomposed and caused the waste of combustion gas.
The flue gas heat of furnace body will be discharged in the waste-heat recovery device used in recent years, by heat exchanger, by combustion air
Preheated, this mode really can energy-conservation of consumption reduction, the disadvantage is that figure is big, pipeline is long, increases input cost, secondly, using
In can consume a large amount of blower electric energy, greatly increase use cost.
In terms of dropping nitrogen, at present frequently with combustion gas fractional combustion and air segmenting dispatching burning, although this mode has
Certain drop nitrogen effect, but discharged nitrous oxides standard is often still not achieved.
In recent years, more and more enterprises use external off-gas recovery pipeline, using exhaust fan, by part of smoke in furnace
Extraction is blended into combustion air, to reduce the oxygen content in air, to achieve the purpose that drop nitrogen.This mode is in practical application
In, due to the reduction of oxygen content in combustion air, causes flame rough burning occur, explosion occur, increase security risk.
Meanwhile a large amount of vapor generate condensed water to the cold in the flue gas of pumpback, the time, which has been grown, to generate serious corrosion to pipeline.Determine
Phase replaces recovered flue gas pipeline, equally will increase investment and use cost.Although this drop nitrogen mode has shortcomings, but because not having
There is new technology replacement, in face of drop nitrogen demand, enterprise must not still use it then.
Summary of the invention
Goal of the invention: the object of the present invention is to provide the ultralow nitrogen energy-saving burner of industrial combustion gas, by aerodynamics and
Airplane wings principle, the flue gas after making burning realize self-loopa, meanwhile, it is placed in cold body in flame, drops combustion flame temperature
It is low, to achieve the effect that drop nitrogen, also, by reaching energy-efficient purpose from warming circulating.
Technical solution: in order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme:
Air heat reflux storehouse is circumferentially arranged in the ultralow nitrogen energy-saving burner of industrial combustion gas, including air-fuel room above air-fuel room,
The bottom in air heat reflux storehouse is connected with air-fuel room；Center setting premix barrel in the air heat reflux storehouse, premix barrel
Bottom be connected with air-fuel room；Smoke backflow hole is set in a row in the premix barrel pipe shaft, in each smoke discharging return port
Weld a smoke absorption ring in the lower section of inside.
Region between the premix barrel and air heat reflux storehouse forms smoke backflow storehouse.
The smoke backflow storehouse is the region of annular, the bottom closing in smoke backflow storehouse, top opening.
At the top of the premix barrel, combustion head is set.
Cooling ring is set at the top in the air heat reflux storehouse, the top in air heat reflux storehouse is connected with cooling ring
It is logical.
The smoke absorption ring includes upper edge, arc annulus and lower edge, and lower edge is welded in each smoke discharging return port
The lower section of side, lower edge upwardly extend arc-shaped annulus, and each arc annulus is packed up to form upper edge after covering smoke backflow hole.
The ring width of the arc annulus is greater than the aperture in smoke backflow hole.
The utility model has the advantages that compared with prior art, the ultralow nitrogen energy-saving burner of industrial combustion gas of the invention, by the way that flue gas is arranged
Absorb ring sucks the flue gas in smoke backflow storehouse by force, forms following certainly for flue gas using the principle of differential pressure of airplane wings
Ring, flue gas recirculation amount is up to 30%；By setting air heat reflux storehouse and cooling ring, reduce the temperature of entire flame, from
And achieve the effect that reduce nitrogen oxides, while the temperature of combustion air being enable to promote (100 DEG C or so), realize energy conservation.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the ultralow nitrogen energy-saving burner of industrial combustion gas；
Fig. 2 is the top view of smoke absorption ring；
Fig. 3 is the side view of smoke absorption ring.
Specific embodiment
The present invention will be further described below with reference to the drawings.
As shown in Figure 1-3, appended drawing reference is as follows: cooling ring 1, combustion head 2, smoke backflow hole 3, air-fuel room 4, air inlet 5,
Smoke absorption ring 6, premix barrel 7, smoke backflow storehouse 8 and air heat reflux storehouse 9；Wherein, smoke absorption ring 6 is including on along 61, arc
Shape annulus 62 and lower along 63.Wherein, arrow direction is gas flow in attached drawing.
As shown in Figure 1, the ultralow nitrogen energy-saving burner of industrial combustion gas, including air-fuel room 4, the circumferential setting above air-fuel room 4
Cooling ring 1, the bottom in air heat reflux storehouse 9 and 4 phase of air-fuel room is arranged at the top in air heat reflux storehouse 9 in air heat reflux storehouse 9
The top of connection, air heat reflux storehouse 9 is connected with cooling ring 1.
Premix barrel 7 is set above air-fuel room 4, and the bottom of premix barrel 7 is connected with air-fuel room 4.At the top of premix barrel 7
Combustion head 2 is set, is evenly distributed with smoke backflow hole 3 in the pipe shaft of premix barrel 7.
The center in air heat reflux storehouse 9 is arranged in premix barrel 7, and the region between premix barrel 7 and air heat reflux storehouse 9 is formed
Smoke backflow storehouse 8, smoke backflow storehouse 8 are the region of annular, the bottom closing in smoke backflow storehouse 8, top opening.
Wherein, smoke backflow hole 3 is set in a row in 7 pipe shaft of premix barrel, weld in the lower section of each 3 inside of smoke discharging return port
Connect a smoke absorption ring 6, i.e. the inside that is welded on premix barrel 7 of smoke absorption ring 6；As Figure 2-3, smoke absorption ring 6 wraps
Include along 61, arc annulus 62 and lower along 63, wherein under be welded on each 3 inside of smoke discharging return port along 63 lower section, lower edge
63 upwardly extend arc-shaped annulus 62, and the ring width of arc annulus 62 is greater than the aperture in smoke backflow hole 3, each arc annulus 62
It packs up to be formed along 61 after covering smoke backflow hole 3.
The course of work: the air into air-fuel room 4 is divided into two strands, one enters air heat reflux storehouse 9, another stock and combustion gas
It is mixed into premix barrel 7.
Into the mixed gas of premix barrel 7, with certain speed flow forward, when through smoke absorption ring 6, aircraft wing is formed
The principle of differential pressure of wing sucks the flue gas in smoke backflow storehouse 8 by force, is mixed with mixed gas (combustion gas, air), drop
The low oxygen content of mixed gas, meanwhile, it heated mixed gas, keep burning more violent, combustion efficiency is more preferable.What burning was formed
Flue gas constantly enters smoke backflow storehouse 8, and is sucked in premix barrel 7 by smoke absorption ring 6, and the self-loopa of flue gas, cigarette are formed
Gas internal circulating load is up to 30%.
Another strand of air enters air heat reflux storehouse 9, and a part enters cooling ring 1 and forms closed self-loopa.It is cold
But ring 1 is located at combustion flame high-temperature region (can specifically obtain by thermodynamic computing), the temperature after flame when high-temperature region meets cooling ring 1
It is reduced.
Meanwhile by the high temperature air in air heat reflux storehouse 9 and cooling ring 1, volume sharply expands, and with air-fuel room 4
Cold air realizes convective exchange, and the temperature of combustion air is enable to be promoted (100 DEG C or so), realizes energy conservation.
Claims (7)
1. the ultralow nitrogen energy-saving burner of industrial combustion gas, it is characterised in that: circumferential above air-fuel room (4) to set including air-fuel room (4)
Gas heat reflux storehouse (9) is emptied, the bottom of air heat reflux storehouse (9) is connected with air-fuel room (4)；In the air heat reflux storehouse
(9) center setting premix barrel (7), the bottom of premix barrel (7) is connected with air-fuel room (4)；In described premix barrel (7) pipe shaft
Set smoke backflow hole (3) in a row, a smoke absorption ring (6) is welded in the lower section on the inside of each smoke discharging return port (3).
2. the ultralow nitrogen energy-saving burner of industrial combustion gas according to claim 1, it is characterised in that: the premix barrel (7)
Region between air heat reflux storehouse (9) forms smoke backflow storehouse (8).
3. the ultralow nitrogen energy-saving burner of industrial combustion gas according to claim 2, it is characterised in that: the smoke backflow storehouse
It (8) is the region of annular, the bottom closing of smoke backflow storehouse (8), top opening.
4. the ultralow nitrogen energy-saving burner of industrial combustion gas according to claim 1, it is characterised in that: in the premix barrel
(7) combustion head (2) are arranged in top.
5. the ultralow nitrogen energy-saving burner of industrial combustion gas according to claim 1, it is characterised in that: returned in the air heat
Cooling ring (1) is arranged in the top for flowing storehouse (9), and the top of air heat reflux storehouse (9) is connected with cooling ring (1).
6. the ultralow nitrogen energy-saving burner of industrial combustion gas according to claim 1, it is characterised in that: the smoke absorption ring
It (6) include upper edge (61), arc annulus (62) and lower edge (63), lower edge (63) is welded on the inside of each smoke discharging return port (3)
Lower section, lower edge (63) upwardly extends arc-shaped annulus (62), and each arc annulus (62) is received afterwards in covering smoke backflow hole (3)
It rises and forms upper edge (61).
7. the ultralow nitrogen energy-saving burner of industrial combustion gas according to claim 6, it is characterised in that: the arc annulus
(62) ring width is greater than the aperture of smoke backflow hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308727.4A CN110360559A (en) | 2018-04-09 | 2018-04-09 | The ultralow nitrogen energy-saving burner of industrial combustion gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308727.4A CN110360559A (en) | 2018-04-09 | 2018-04-09 | The ultralow nitrogen energy-saving burner of industrial combustion gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110360559A true CN110360559A (en) | 2019-10-22 |
Family
ID=68213546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308727.4A Pending CN110360559A (en) | 2018-04-09 | 2018-04-09 | The ultralow nitrogen energy-saving burner of industrial combustion gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110360559A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4238529A1 (en) * | 1992-11-14 | 1994-05-19 | Deutsche Forsch Luft Raumfahrt | Burner for hot gas prodn. - has burner tube with heat feed reducing component between flame and support tubes, component connecting fuel jet direction to diaphragm and having insulation ring |
| CN201487965U (en) * | 2009-09-11 | 2010-05-26 | 施芜 | Self-preheating type burner |
| CN102635853A (en) * | 2012-03-27 | 2012-08-15 | 上海诺特飞博燃烧设备有限公司 | Industrial combustor for reducing NOx emission by self-circulation of smoke |
| CN208349295U (en) * | 2018-04-09 | 2019-01-08 | 南京冉星环保科技有限公司 | The ultralow nitrogen energy-saving burner of industrial combustion gas |
-
2018
- 2018-04-09 CN CN201810308727.4A patent/CN110360559A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4238529A1 (en) * | 1992-11-14 | 1994-05-19 | Deutsche Forsch Luft Raumfahrt | Burner for hot gas prodn. - has burner tube with heat feed reducing component between flame and support tubes, component connecting fuel jet direction to diaphragm and having insulation ring |
| CN201487965U (en) * | 2009-09-11 | 2010-05-26 | 施芜 | Self-preheating type burner |
| CN102635853A (en) * | 2012-03-27 | 2012-08-15 | 上海诺特飞博燃烧设备有限公司 | Industrial combustor for reducing NOx emission by self-circulation of smoke |
| CN208349295U (en) * | 2018-04-09 | 2019-01-08 | 南京冉星环保科技有限公司 | The ultralow nitrogen energy-saving burner of industrial combustion gas |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240124 Address after: 210000, Building 1-1, West Street, Qiaolin Street, Pukou District, Nanjing City, Jiangsu Province Applicant after: JIANGSU FULEIMU ENVIRONMENT TECHNOLOGY CO.,LTD. Country or region after: China Address before: Room 508, Building 04, No.1 Kechuang Road, Yaohua Street, Qixia District, Nanjing City, Jiangsu Province, 210046 Applicant before: NANJING RANXING ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Country or region before: China |