CN102121699B - Partially premixed gas burning head - Google Patents
Partially premixed gas burning head Download PDFInfo
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- CN102121699B CN102121699B CN 201110046240 CN201110046240A CN102121699B CN 102121699 B CN102121699 B CN 102121699B CN 201110046240 CN201110046240 CN 201110046240 CN 201110046240 A CN201110046240 A CN 201110046240A CN 102121699 B CN102121699 B CN 102121699B
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- gas
- combustion gas
- flame
- air chamber
- partially premixed
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Abstract
The invention relates to a partially premixed gas burning head, comprising a gas inlet pipe, a flame stabilizer, an ignition electrode and a flame ion detecting rod, wherein a gas chamber is arranged at the front end of the gas inlet pipe; the gas chamber is a flat cylinder, and a plurality of premixing pipes with the drift diameter of 8-10mm are riveted into the gas chamber in the axial direction; a plurality of gas through holes with the drift diameter of 2-3mm are vertically formed on the pipe walls of the air inlets of the premixing pipes; a plurality of gas through holes with the drift diameter of 6-8mm are vertically formed on the peripheral walls of the gas chamber; and an included angle between the normal line direction of the gas through holes and the axial direction of the gas chamber is 90 degrees. The partially premixed gas burning head has the comprehensive advantages that premixing-type and diffusion-type burning modes are provided, the comprehensive defects of the two burning modes are overcome, and partially premixed flame can be formed. The partially premixed gas burning head has the characteristic that the burning efficiency is high, and the NOx and CO emission effects for the gas are low.
Description
Technical field
The present invention relates to a kind of partially premixed gas burner.
Background technology
Gas burner divides at present has fully-premixed and perfect diffusion formula two classes, and fully premixed combustion is rapid, and the nozzle calorific intensity is high, and nothing is taken off fire, but flame is short, Fire Radiation intensity is low, and easily produces tempering.Perfect diffusion formula burning velocity is low, and Fire Radiation intensity is high, and without tempering, but flame is longer, easily takes off fire.Above-mentioned two kinds of combustion systems all have excellent, shortcoming separately.
Summary of the invention
Its purpose of the present invention just is to provide a kind of partially premixed gas burner, has premixed and the overall merit diffusion type combustion system, has overcome the comprehensive shortcoming of above-mentioned two kinds of combustion systems, but the premixed flame of forming section.Have the high characteristics of efficiency of combustion, and flue gas has low NO
x, low CO emission effect.
The technical scheme that realizes above-mentioned purpose and take, comprise the fuel gas inlet pipe, fuel gas inlet pipe front end is provided with the combustion gas air chamber, flame holder, ignitor and flame ion feeler, described combustion gas air chamber is the flat cylinder, entering many latus rectums in its axial riveting is 8～10mm premix barrel, on premix barrel air intake end tube wall, vertically offer the combustion gas through hole that several latus rectums are 2～3mm, offer the combustion gas through hole that a plurality of latus rectums are 6～8mm at combustion gas air chamber peripheral wall, the axial angle of described combustion gas through hole normal direction and air chamber is 90 °.
Compared with prior art, beneficial effect of the present invention is,
Owing to having adopted the structural design of premix barrel, thereby having had premixed and the overall merit diffusion type combustion system, overcome the comprehensive shortcoming of above-mentioned two kinds of combustion systems, but the premixed flame of forming section.Have the high characteristics of efficiency of combustion, and flue gas has low NO
x, low CO emission effect.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing,
Fig. 1 is one of this apparatus structure schematic perspective view;
Fig. 2 is two of this apparatus structure schematic perspective view;
Fig. 3 is this apparatus structure schematic front view;
Fig. 4 is this device premix barrel structural representation front view;
Fig. 5 is this device premix barrel structural upright schematic diagram.
The specific embodiment
Comprise fuel gas inlet pipe 5, fuel gas inlet pipe 5 front ends are provided with combustion gas air chamber 7, flame holder 1, ignitor 3 and flame ion feeler 4, as shown in Figure 1, described combustion gas air chamber 7 is the flat cylinder, entering many latus rectums in its axial riveting is 8～10mm premix barrel 6, on premix barrel 6 air intake end tube walls, vertically offer the combustion gas through hole 8 that several latus rectums are 2～3mm, offer the combustion gas through hole 2 that a plurality of latus rectums are 6～8mm at combustion gas air chamber 7 peripheral walls, the axial angle of described combustion gas through hole 2 normal directions and air chamber is 90 °.
Described combustion gas air chamber 7 outlet tops are provided with the orifice-plate type flame holder 1 that latus rectum is 3mm.
This device mainly is comprised of fuel gas inlet pipe 5, combustion gas air chamber 7, premix barrel 6, flame holder 1, ignitor 3, flame ion feeler 4.After combustion gas entered the combustion gas air chamber, a part entered premix barrel, after air ejection mixing wherein, through the ejection of flame holder aperture, lighted the rear premixed flame (blue-flame) that forms by the electric spark that ignitor produces; The perforate of another part combustion gas on the combustion gas air chamber sprays in the combustion air with 90 ° angle, forms diffusion type flame (being generally yellow flame or white flame) after lighting.
Combustion gas air chamber 7 is designed to the flat cylinder, entering many latus rectums in its axial riveting is 8～10mm premix barrel 6, on premix barrel 6 air intake end tube walls, vertically offer the combustion gas through hole 8 that several latus rectums are 2～3mm, offer the combustion gas through hole 2 that a plurality of latus rectums are 6～8mm at combustion gas air chamber 7 peripheral walls, the axial angle of through hole normal direction and air chamber is 90 °.
Be provided with on combustion gas air chamber 7 outlet tops and have the orifice-plate type flame holder 1 that latus rectum is 3mm.
At combustion head high-tension ignition electrode 3 and flame ion feeler 4 are housed.
1 combustion head architectural feature
This kind combustion head principal character is to have premixed and structure and characteristics diffusion type fuel gas buring mode.Combustion gas before burning, a part of combustion gas first with part combustion air premix, ignition; The part combustion gas did not mix with air before burning in addition, burnt while mixing but spray into rib combustion air.
2 operation principles
After process of combustion started, electrode produced electric spark, and combustion gas and combustion air are opened, and combustion gas divides two-way to enter burning to revolve and mouthful mix with combustion air.The one, through the premix barrel front premixed mixing of burning; One the tunnel carries out diffusion type through the ejection of combustion gas gas chamber outer wall combustion gas through hole mixes; After lighting, electric spark forms combustion flame.In combustion process, flame holder provides high-strength backflow hot gas for the continous-stable of combustion gas catches fire, and whether the existence of ion detection bar continuous monitoring flame.
3 major functions
Be not less than 3000 kcal/m 3.1 be applicable to the low calorific gas value
3(mark attitude), pressure are at the various fuel gas of 2KPa～20KPa.
3.2 the series of products output power range is 500kW～3500kW.
3.3 flame is short than perfect diffusion formula flame, more fully-premixed flame is long; Flame color has certain radiation intensity between blue-flame and yellow flame.
3.4 burning is rapid, stable, without taking off fire, tempering phenomenon.
Efficiency of combustion is not less than 99.3%, O in the flue gas
2≤ 4.0%, CO≤0.02%, NO
x≤ 100mg/m
3, have low NO
xCombustibility.
Claims (2)
1. partially premixed gas burner, comprise fuel gas inlet pipe (5), flame holder (1), ignitor (3) and flame ion feeler (4), wherein fuel gas inlet pipe (5) front end is provided with combustion gas air chamber (7), it is characterized in that, described combustion gas air chamber (7) is the flat cylinder, entering many latus rectums in its axial riveting is 8～10mm premix barrel (6), on premix barrel (6) air intake end tube wall, vertically offer the combustion gas through hole (8) that several latus rectums are 2～3mm, offer the combustion gas through hole (2) that a plurality of latus rectums are 6～8mm at combustion gas air chamber (7) peripheral wall, the axial angle of described 6～8mm combustion gas through hole (2) normal direction and air chamber is 90 °.
2. a kind of partially premixed gas burner according to claim 1 is characterized in that, the described flame holder that described combustion gas air chamber outlet top is provided with is that latus rectum is the orifice-plate type flame holder (1) of 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110046240 CN102121699B (en) | 2011-02-27 | 2011-02-27 | Partially premixed gas burning head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110046240 CN102121699B (en) | 2011-02-27 | 2011-02-27 | Partially premixed gas burning head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102121699A CN102121699A (en) | 2011-07-13 |
| CN102121699B true CN102121699B (en) | 2013-04-17 |
Family
ID=44250313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110046240 Active CN102121699B (en) | 2011-02-27 | 2011-02-27 | Partially premixed gas burning head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102121699B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047647A (en) * | 2012-12-18 | 2013-04-17 | 中原特种车辆有限公司 | Fuel gas combustor |
| CN103062769B (en) * | 2013-01-14 | 2015-09-09 | 兆轩能科技有限公司 | A kind of burner |
| CN115468162A (en) * | 2022-08-31 | 2022-12-13 | 北京航天石化技术装备工程有限公司 | Injection type pilot premix staged combustion pilot burner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3117708A1 (en) * | 1981-05-05 | 1982-11-18 | Anatolij Alekseevič Penza Černyj | Gas burner |
| EP0526152A1 (en) * | 1991-08-01 | 1993-02-03 | General Electric Company | Flashback resistant fuel staged premixed combustor |
| CN101793400A (en) * | 2009-02-04 | 2010-08-04 | 通用电气公司 | Premixed direct injection nozzle |
| EP2251605A2 (en) * | 2009-05-14 | 2010-11-17 | General Electric Company | Dry low nox combustion system with pre-mixed direct-injection secondary fuel-nozzle |
-
2011
- 2011-02-27 CN CN 201110046240 patent/CN102121699B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3117708A1 (en) * | 1981-05-05 | 1982-11-18 | Anatolij Alekseevič Penza Černyj | Gas burner |
| EP0526152A1 (en) * | 1991-08-01 | 1993-02-03 | General Electric Company | Flashback resistant fuel staged premixed combustor |
| CN101793400A (en) * | 2009-02-04 | 2010-08-04 | 通用电气公司 | Premixed direct injection nozzle |
| EP2251605A2 (en) * | 2009-05-14 | 2010-11-17 | General Electric Company | Dry low nox combustion system with pre-mixed direct-injection secondary fuel-nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102121699A (en) | 2011-07-13 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200407 Address after: 332100 No.29, Shiniu Road, chengxigang District, Jiujiang City, Jiangxi Province Patentee after: CSSC Jiujiang Boiler Co., Ltd Address before: 332008 Anping Road, Mount Lu District, Jiangxi, Jiujiang 1007 Patentee before: CSSC JIANGXI MARINE INSTRUMENT Co.,Ltd. |