CN101832556A - Combustor by utilizing multiple types of mixed gases as fuels - Google Patents
Combustor by utilizing multiple types of mixed gases as fuels Download PDFInfo
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- CN101832556A CN101832556A CN 201010190984 CN201010190984A CN101832556A CN 101832556 A CN101832556 A CN 101832556A CN 201010190984 CN201010190984 CN 201010190984 CN 201010190984 A CN201010190984 A CN 201010190984A CN 101832556 A CN101832556 A CN 101832556A
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Abstract
The invention relates to a combustor by utilizing multiple types of mixed gases as fuels. A plurality of peripheral nozzles and a center nozzle are arranged inside the combustor wall. Interior spaces of the peripheral nozzles and the center nozzle are fuel through areas, and exterior spaces thereof are air through areas. The ratio of the air through cross section to the fuel through cross section in the combustor is 3.2-3.6. After setting the ratio of the air through cross section to the fuel through cross section in the combustor to 3.2-3.6, the average heat valve of the mixed gases is 2790kcal/Nm<3>, and the combustion efficiency is high and can reach more than 99.5%. In addition, the invention can satisfy that the multiple types of mixed gases ensure the output force of the combustor meets the requirement when the ratio is changed, has general applicability, and can generate good economical and social benefits.
Description
Technical field
The present invention relates to a kind of burner, especially relating to a kind of is the burner of fuel with multiple air mixture.
Background technology
(TDI is the english abbreviation of toluene di-isocyanate(TDI) along with continuous popularization, the TDI of recycling economy, English full name Toluenediisocyanate) change of production-scale expansion and supporting gas fired-boiler propellant composition, the burner of original boiler can not satisfy the demand of production.
One of them important reasons is that burner undercapacity or efficiency of combustion are low etc.So after original burner must being carried out technological improvement, just can make its demand that satisfies energy supply, solve the bottleneck effect of the supporting steam pressure undersupply of TDI.
The cross section structure of existing burner as shown in Figure 1, the sectional area that the air of the burner of original structure flows through with the ratio of the sectional area that gas-flow is crossed is: 6.94.After using the mist of separating gassing, water-gas, coking gas, semiwater gas instead and acting as a fuel, find the burner undercapacity.By analysis, the calorific value of discovery mist is 2788Kcal/Nm
3, reduced much than original.
In addition, burner also can exist burning to gnaw the technical problem that carbon distribution stops up.
Summary of the invention
It is the burner of fuel with multiple air mixture that the present invention has designed a kind of, and the technical problem of its solution is:
(1) existing burner combustion efficient is low, causes the bottleneck effect of the supporting steam pressure undersupply of TDI;
(2) the combustion flame length of existing burner is long, and flame of centre has shortened the service life of burner easily to other part scaling loss;
(3) existing burner occurs easily burning and gnaws the carbon distribution clogging.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of is the burner of fuel with multiple air mixture, be provided with a plurality of peripheral nozzles and a central nozzle in burner wall inside, the inner space of a described a plurality of peripheral nozzle and a central nozzle is the current zone of combustion gas, the space outerpace of a described a plurality of peripheral nozzle and a central nozzle is the current zone of air, and the sectional area of crossing at burner hollow air-flow is 3.2-3.6 with the ratio of the sectional area that gas-flow is crossed.
Further, the ratio of the sectional area crossed of the sectional area of crossing at burner hollow air-flow and gas-flow is 3.4.
Further, also comprise a gas pre-mixed device, described gas pre-mixed device comprises spoiler, premix aperture and premix skewed slot.
Further, described spoiler is positioned on the outer wall of described central nozzle.
Further, described premix aperture is arranged on the tube wall of described central nozzle end.
Further, described premix skewed slot is arranged on the tube wall of described peripheral nozzle.
Should be that the burner of fuel is compared with traditional ordinary burner with multiple air mixture, have following beneficial effect:
(1) the present invention is owing to after the ratio of the sectional area that air flows through in burner sectional area and gas-flow are crossed is set to 3.2-3.6, find that the mean calorie of mist is 2790kcal/Nm
3, the efficiency of combustion height can reach more than 99.5%.In addition, can satisfy multiple air mixture and can make also that when ratio changes exerting oneself of burner reaches requirement, have general applicability, can produce good economic benefits and social benefit.
(2) the present invention is owing to also be provided with pre-mixing apparatus, and this pre-mixing apparatus makes air mixture well contact before burning with air, and the efficiency of combustion height has solved existing burner burning and gnawed the carbon distribution blocking problem, has improved the burner security performance.
(3) the present invention is also because because of spoiler is arranged, the combustion flame length that makes is short, avoids flame of centre to other part scaling loss, has prolonged the service life of burner.
Description of drawings
Fig. 1: the cross section structure schematic diagram of existing burner;
Fig. 2: the present invention is the schematic cross-section of the burner of fuel with multiple air mixture;
Fig. 3: the schematic cross-section of the central nozzle among the present invention;
Fig. 4: the schematic cross-section of the peripheral nozzle among the present invention;
Fig. 5: burner nozzle of the present invention synthesizes schematic diagram.
Description of reference numerals:
1-periphery nozzle; The 2-central nozzle; The sectional area that the 3-air flows through; The sectional area that the 4-gas-flow is crossed; The 5-spoiler; 6-premix aperture; 7-premix skewed slot; 8-burner wall.
The specific embodiment
Below in conjunction with Fig. 2 to Fig. 5, the present invention will be further described:
As shown in Figure 2, a kind of is the burner of fuel with multiple air mixture, be provided with a plurality of peripheral nozzles 1 and a central nozzle 2 in burner wall 8 inside, the inner space of described a plurality of peripheral nozzles 1 and a central nozzle 2 is the current zone of combustion gas, the space outerpace of described a plurality of peripheral nozzles 1 and a central nozzle 2 is the current zone of air, and the sectional area of crossing at burner hollow air-flow 3 is 3.2-3.6 with the ratio of the sectional area 4 that gas-flow is crossed.
Owing to after the ratio of the sectional area that air flows through in burner sectional area and gas-flow are crossed is set to 3.4, find that the mean calorie of mist is 2790kcal/Nm
3, the efficiency of combustion height can reach more than 99.5%.In addition, can satisfy multiple air mixture and can make also that when ratio changes exerting oneself of burner reaches requirement, have general applicability, can produce good economic benefits and social benefit.
The sectional area of crossing at burner hollow air-flow 3 is 3.3 with the ratio of the sectional area 4 that gas-flow is crossed.Combustion efficiency the best of the burner of this ratio.
In addition, also comprise a gas pre-mixed device, described gas pre-mixed device comprises spoiler 5, premix aperture 6 and premix skewed slot 7.This pre-mixing apparatus makes air mixture well contact before burning with air, and the efficiency of combustion height has solved existing burner burning and gnawed the carbon distribution blocking problem, has improved the burner security performance.
As shown in Figure 3, described spoiler 5 is positioned on the outer wall of described central nozzle 2.Because of spoiler 5 is arranged, the combustion flame length that makes is short, avoids flame of centre to other part scaling loss, has prolonged the service life of burner.Described premix aperture 6 is arranged on the tube wall of described central nozzle 2 ends.
As shown in Figure 4, described premix skewed slot 7 is arranged on the tube wall of described peripheral nozzle 1.
As shown in Figure 5, the present invention is that the operation principle of burner of fuel is as follows with multiple air mixture:
When the end of combustion gas arrival central nozzle 2,, reach the purpose of carrying out premix with central nozzle 2 air outward by the premix aperture 6 on central nozzle 2 ends.
When combustion gas arrives peripheral nozzle 1 terminal, because of the diameter of peripheral nozzle 1 end diminishes, make a part of combustion gas contact with air by premix skewed slot 7, reach premixing effect.
When air was flowed through spoiler 5, spoiler 5 made air also can better mix with combustion gas.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obvious realization of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all in protection scope of the present invention.
Claims (6)
1. one kind is the burner of fuel with multiple air mixture, be provided with a plurality of peripheral nozzles (1) and a central nozzle (2) in burner wall (8) inside, the inner space of described a plurality of peripheral nozzles (1) and a central nozzle (2) is the current zone of combustion gas, the space outerpace of described a plurality of peripheral nozzles (1) and a central nozzle (2) is the current zone of air, it is characterized in that: the sectional area of crossing at burner hollow air-flow (3) is 3.2-3.6 with the ratio of the sectional area (4) that gas-flow is crossed.
2. according to claim 1 is the burner of fuel with multiple air mixture, it is characterized in that: the sectional area of crossing at burner hollow air-flow (3) is 3.4 with the ratio of the sectional area (4) that gas-flow is crossed.
According to claim 1 or 2 described be the burner of fuel with multiple air mixture, it is characterized in that: also comprise a gas pre-mixed device, described gas pre-mixed device comprises spoiler (5), premix aperture (6) and premix skewed slot (7).
4. according to claim 3 is the burner of fuel with multiple air mixture, and it is characterized in that: described spoiler (5) is positioned on the outer wall of described central nozzle (2).
5. according to claim 4 is the burner of fuel with multiple air mixture, it is characterized in that: described premix aperture (6) is arranged on the terminal tube wall of described central nozzle (2).
According to claim 4 or 5 described be the burner of fuel with multiple air mixture, it is characterized in that: described premix skewed slot (7) is arranged on the tube wall of described peripheral nozzle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101909846A CN101832556B (en) | 2010-06-03 | 2010-06-03 | Combustor by utilizing multiple types of mixed gases as fuels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101909846A CN101832556B (en) | 2010-06-03 | 2010-06-03 | Combustor by utilizing multiple types of mixed gases as fuels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101832556A true CN101832556A (en) | 2010-09-15 |
| CN101832556B CN101832556B (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101909846A Expired - Fee Related CN101832556B (en) | 2010-06-03 | 2010-06-03 | Combustor by utilizing multiple types of mixed gases as fuels |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353054A (en) * | 2011-10-28 | 2012-02-15 | 金艺 | Gas burner capable of adjusting premix |
| CN110760357A (en) * | 2019-11-21 | 2020-02-07 | 陕西东鑫垣化工有限责任公司 | Preparation method and treatment device of heating furnace fuel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437831A (en) * | 1980-10-27 | 1984-03-20 | Aero Environmental Limited | Burner head |
| US5447427A (en) * | 1991-09-24 | 1995-09-05 | Kabushiki Kaisha Kobe Seiko Sho | Burner and method for burning low calorific gas |
| JP2004163054A (en) * | 2002-11-15 | 2004-06-10 | Koike Sanso Kogyo Co Ltd | Oxy-fuel cutting nozzle |
| CN1793727A (en) * | 2006-01-09 | 2006-06-28 | 郑州豫兴耐火材料有限公司 | Gas mixed burner with three-way |
| CN1922440A (en) * | 2004-02-24 | 2007-02-28 | 西门子公司 | Premix burner and method for combusting a low-calorific gas |
| CN101220954A (en) * | 2008-01-25 | 2008-07-16 | 上海锅炉厂有限公司 | Combustor and combustion method for pure burning blast furnace gas or low-calorific value gas |
| CN201129726Y (en) * | 2007-10-18 | 2008-10-08 | 朴显泽 | Mixed combusting device capable of utilizing two combustible gases |
-
2010
- 2010-06-03 CN CN2010101909846A patent/CN101832556B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437831A (en) * | 1980-10-27 | 1984-03-20 | Aero Environmental Limited | Burner head |
| US5447427A (en) * | 1991-09-24 | 1995-09-05 | Kabushiki Kaisha Kobe Seiko Sho | Burner and method for burning low calorific gas |
| JP2004163054A (en) * | 2002-11-15 | 2004-06-10 | Koike Sanso Kogyo Co Ltd | Oxy-fuel cutting nozzle |
| CN1922440A (en) * | 2004-02-24 | 2007-02-28 | 西门子公司 | Premix burner and method for combusting a low-calorific gas |
| CN1793727A (en) * | 2006-01-09 | 2006-06-28 | 郑州豫兴耐火材料有限公司 | Gas mixed burner with three-way |
| CN201129726Y (en) * | 2007-10-18 | 2008-10-08 | 朴显泽 | Mixed combusting device capable of utilizing two combustible gases |
| CN101220954A (en) * | 2008-01-25 | 2008-07-16 | 上海锅炉厂有限公司 | Combustor and combustion method for pure burning blast furnace gas or low-calorific value gas |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353054A (en) * | 2011-10-28 | 2012-02-15 | 金艺 | Gas burner capable of adjusting premix |
| CN110760357A (en) * | 2019-11-21 | 2020-02-07 | 陕西东鑫垣化工有限责任公司 | Preparation method and treatment device of heating furnace fuel |
| CN110760357B (en) * | 2019-11-21 | 2021-06-25 | 陕西东鑫垣化工有限责任公司 | Preparation method and treatment device of heating furnace fuel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101832556B (en) | 2012-02-08 |
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Granted publication date: 20120208 Termination date: 20130603 |