CN201521963U - Low heat value gas fuel combustor - Google Patents

Low heat value gas fuel combustor Download PDF

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Publication number
CN201521963U
CN201521963U CN2009202174303U CN200920217430U CN201521963U CN 201521963 U CN201521963 U CN 201521963U CN 2009202174303 U CN2009202174303 U CN 2009202174303U CN 200920217430 U CN200920217430 U CN 200920217430U CN 201521963 U CN201521963 U CN 201521963U
Authority
CN
China
Prior art keywords
gas fuel
value gas
calorific value
eddy flow
igniter
Prior art date
Application number
CN2009202174303U
Other languages
Chinese (zh)
Inventor
罗勇
Original Assignee
石家庄得宝机械制造有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 石家庄得宝机械制造有限公司 filed Critical 石家庄得宝机械制造有限公司
Priority to CN2009202174303U priority Critical patent/CN201521963U/en
Application granted granted Critical
Publication of CN201521963U publication Critical patent/CN201521963U/en

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Abstract

The utility model provides a low heat value gas fuel combustor comprising a casing. Outlets of an air channel and a fuel gas channel in the casing are converged at a combustion chamber, and a swirl baffle is arranged. The low heat value gas fuel combustor is characterized in that a fire jet port of a swirl type small fire igniter additionally arranged is directly inserted into the combustion chamber. The combustor can be applied to the technical field of thermal energy engineering; the small fire igniter in the combustor can directly use low heat value gas fuel to ignite, so that the lower heat value combustor has reliable ignition; the low heat value gas fuel is combusted fully; and the low heat value gas fuel combustor can purely combust the gas fuel with the heat value of more than 2.1 MJ/Nm3.

Description

The low calorific value gas fuel burner
Technical field
The utility model belongs to the Thermal Power Engineering technical field, relates to a kind of burner, especially a kind of burner that uses low calorific value gas fuel.
Background technology
Low-BTU gas at field ubiquities such as chemical industry, the energy, environment, comprise blast furnace gas that produces in various refuse pyrolysis gas, biogas and the ironmaking processes etc.These gas heating values are low, and the difficulty of catching fire adopt burners in prior to be difficult to realize smooth combustion, and efficiency of combustion is lower, and pernicious gas content height has caused pollution to environment in the fume emission.At present, known low calorific value gas fuel burner is directly lighted main flame, needs special-purpose blast volume controller, and investment is big.
On May 12nd, 2004 disclosed utility application 03221447.2 a kind of low heat value burner is provided, the two-stage ignition mode is adopted in igniting, promptly lights altar lamp by igniter, lights main fuel by altar lamp again, thereby guarantees to stablize burning things which may cause a fire disaster.But this burner structure complexity, igniter and altar lamp all are positioned at the combustion zone, once igniting and regnition all are in the main burner, and what the altar lamp that is provided with was used is exotic fuels, this just requires must to be provided for specially in the low heat value burner exotic fuels of lighting a fire, if exotic fuels can't normally be provided, burner still can't guarantee reliable ignition.
The utility model content
The technical problems to be solved in the utility model provide a kind of can reliable ignition, make the low calorific value gas fuel burner of low calorific value gas fuel sufficient combustion.
For addressing the above problem, technical solution adopted in the utility model is: a kind of low calorific value gas fuel burner, comprise shell in the structure, the outlet of air duct and blast tube converges at the combustion chamber in the shell, and having disposed eddy flow baffle plate, its key is: the bocca of the little fiery igniter of setting up in the structure of spiral-flow type directly inserts the combustion chamber.
Described little fiery igniter is provided with axial blast tube and tangential air duct, or axial air duct and tangential blast tube.
At least contain an igniter in the described little fiery igniter structure.
Described igniter is a spark plug.
The eddy flow baffle plate of described eddy flow baffle plate that is configured in air duct and blast tube is coaxial, and two eddy flow baffle plates are fixing spinning disk structure.
The described eddy flow baffle plate that is disposed at air duct is fixed on the outer wall of blast tube and little fiery igniter.
Describedly be configured in eddy flow baffle plate on the blast tube by welding or be threaded in the exit of blast tube.
Be fixed with flame detector on the eddy flow baffle plate of described housing and air duct.
Adopt the beneficial effect that technique scheme produced to be: the low calorific value gas fuel burner in the utility model, combustion gas and air be axially and tangentially entering from little fiery igniter respectively, form swirling eddy, in very short stroke, finish mixing, so little fiery igniter burning is violent, even still can form stable incendiary source under the environment of powerful eddy flow wind; The bocca of little fiery igniter directly inserts the combustion chamber, and mist is wherein lighted, and has guaranteed the reliable ignition of low calorific value gas fuel, need not be provided for the high heating value gaseous fuel of lighting a fire specially.Eddy flow baffle plate rises combustion air and gaseous fuel respectively and revolves, and combustion air is fully mixed with gaseous fuel, has guaranteed the abundant burning of low calorific value gas fuel.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A phase view of the medium and small fiery igniter of Fig. 1;
Among the figure 1, the combustion air inlet, 2, air duct, 3, gas fuel inlet, 4, little fiery igniter, 5, spark plug, 6, flame detector, 7, eddy flow baffle plate, 8, eddy flow baffle plate, 9, combustion chamber, 10, blast tube, 11, housing, 12, axial blast tube, 13, tangential air duct.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
A kind of low calorific value gas fuel burner, comprise shell 11 in the structure, the outlet of air duct 2 and blast tube 10 converges at combustion chamber 9 in the shell 11, and has disposed eddy flow baffle plate, and its key is: the bocca of the little fiery igniter 4 of the spiral-flow type of setting up in the structure directly inserts combustion chamber 9.
Above-mentioned little fiery igniter 4 is provided with axial blast tube and tangential air duct, or axial air duct and tangential blast tube.
At least contain an igniter in above-mentioned little fiery igniter 4 structures.
Above-mentioned igniter is a spark plug 5.
The above-mentioned eddy flow baffle plate that is configured in air duct 27 and the eddy flow baffle plate 8 of blast tube 10 are coaxial, and two eddy flow baffle plates are fixing spinning disk structure.
The above-mentioned eddy flow baffle plate that is disposed at air duct 27 is fixed on the outer wall of blast tube 10 and little fiery igniter 4.
Above-mentioned be configured in eddy flow baffle plate 8 on the blast tube 10 by welding or be threaded in the exit of blast tube 10.
Be fixed with flame detector 6 on the above-mentioned housing 11 and the eddy flow baffle plate of air duct 2.
An embodiment of the present utility model: under the control of control system, open combustion fan, combustion air enters air duct 2 by combustion air inlet 1, forms left-handed combustion-supporting air flow by eddy flow baffle plate 7; Starting ignition device spark plug 5 emission continuously sparkings, part low calorific value gas fuel and combustion air enter little fiery igniter 4 from the axial blast tube 12 and the tangential air duct 13 of little fiery igniter respectively, and under the effect of spark plug 5, light, form stable little fiery ignition flame; After several seconds, gaseous fuel enters blast tube 10 by gas fuel inlet 3, and under eddy flow baffle plate 8 effect, forms the gas-flow of dextrorotation, mix with combustion-supporting air flow, and by the flame ignition at little fiery igniter 4 bocca places; The start-up course of burner finishes, and little fiery igniter 4 quits work.
Low calorific value gas fuel burner in this programme, combustion air is tangentially to enter little fiery igniter 4, with combustion gas formation swirling eddy axially to enter, in very short stroke, finish mixing, so little fiery igniter 4 burnings are violent, even under the environment of powerful eddy flow wind, still can form stable incendiary source, the bocca of little fiery igniter 4 directly inserts combustion chamber 9, and the mist of inciting somebody to action is wherein lighted, guarantee the reliable ignition of low calorific value gas fuel, need not be provided for the high heating value gaseous fuel of lighting a fire specially.Eddy flow baffle plate rises combustion air and gaseous fuel respectively and revolves, and combustion air is fully mixed with gaseous fuel, has guaranteed the abundant burning of low calorific value gas fuel.
This low calorific value gas fuel burner can pure burning calorific value at 2.1MJ/Nm 3Above gaseous fuel.

Claims (8)

1. low calorific value gas fuel burner, comprise shell (11) in the structure, the outlet of interior air duct of shell (11) (2) and blast tube (10) converges at combustion chamber (9), and disposed eddy flow baffle plate, it is characterized in that: the bocca of the little fiery igniter of the spiral-flow type of setting up in the structure (4) directly inserts combustion chamber (9).
2. low calorific value gas fuel burner according to claim 1 is characterized in that: described little fiery igniter (4) is provided with axial blast tube and tangential air duct, or axial air duct and tangential blast tube.
3. low calorific value gas fuel burner according to claim 1 is characterized in that: contain an igniter at least in described little fiery igniter (4) structure.
4. low calorific value gas fuel burner according to claim 3 is characterized in that: described igniter is spark plug (5).
5. low calorific value gas fuel burner according to claim 1, it is characterized in that: the eddy flow baffle plate (8) of described eddy flow baffle plate (7) that is configured in air duct (2) and blast tube (10) is coaxial, and two eddy flow baffle plates are fixing spinning disk structure.
6. low calorific value gas fuel burner according to claim 1 is characterized in that: the described eddy flow baffle plate (7) that is configured in air duct (2) is fixed on the outer wall of blast tube (10) and little fiery igniter (4).
7. low calorific value gas fuel burner according to claim 1 is characterized in that: the described eddy flow baffle plate (8) of blast tube (10) that is disposed at is by welding or be threaded in the exit of blast tube (10).
8. low calorific value gas fuel burner according to claim 1 is characterized in that: be fixed with flame detector (6) on the eddy flow baffle plate (7) of described housing (11) and air duct (2).
CN2009202174303U 2009-10-10 2009-10-10 Low heat value gas fuel combustor CN201521963U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202174303U CN201521963U (en) 2009-10-10 2009-10-10 Low heat value gas fuel combustor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202174303U CN201521963U (en) 2009-10-10 2009-10-10 Low heat value gas fuel combustor

Publications (1)

Publication Number Publication Date
CN201521963U true CN201521963U (en) 2010-07-07

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Application Number Title Priority Date Filing Date
CN2009202174303U CN201521963U (en) 2009-10-10 2009-10-10 Low heat value gas fuel combustor

Country Status (1)

Country Link
CN (1) CN201521963U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102183011A (en) * 2011-04-29 2011-09-14 华新环境工程有限公司 Efficient combustor for waste derived fuel
CN102519039A (en) * 2011-11-24 2012-06-27 赵桐斌 Burner for gas calorific value instrument
CN102721059A (en) * 2012-06-26 2012-10-10 上海华之邦能源科技有限公司 Low-heating-value gas burner and burning technology
CN103104914A (en) * 2011-11-11 2013-05-15 福建正泽新能源有限公司 Biogas burner
CN103851615A (en) * 2012-11-30 2014-06-11 岳阳远东节能设备有限公司 Novel automatic low-heating value industrial waste gas burner
CN105650640A (en) * 2014-11-14 2016-06-08 中国科学院力学研究所 Heater nozzle based on spiral twisting number optimization
CN109654530A (en) * 2019-01-11 2019-04-19 哈尔滨工程大学 A kind of plasma ignition and auxiliary combustion equipment for low calorific value gas fuel
CN111649342A (en) * 2020-06-02 2020-09-11 西安交通大学 Low NOx combustor is burnt out to extremely low calorific value associated gas resource utilization and carbon black

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102183011A (en) * 2011-04-29 2011-09-14 华新环境工程有限公司 Efficient combustor for waste derived fuel
CN103104914B (en) * 2011-11-11 2015-04-22 福建正泽新能源有限公司 Biogas burner
CN103104914A (en) * 2011-11-11 2013-05-15 福建正泽新能源有限公司 Biogas burner
CN102519039B (en) * 2011-11-24 2013-12-18 赵桐斌 Burner for gas calorific value instrument
CN102519039A (en) * 2011-11-24 2012-06-27 赵桐斌 Burner for gas calorific value instrument
CN102721059A (en) * 2012-06-26 2012-10-10 上海华之邦能源科技有限公司 Low-heating-value gas burner and burning technology
CN102721059B (en) * 2012-06-26 2014-09-03 上海华之邦科技股份有限公司 Low-heating-value gas burner and burning technology
CN103851615A (en) * 2012-11-30 2014-06-11 岳阳远东节能设备有限公司 Novel automatic low-heating value industrial waste gas burner
CN103851615B (en) * 2012-11-30 2016-06-15 岳阳远东节能设备有限公司 A kind of automatization low heat value industrial waste gas combustor
CN105650640A (en) * 2014-11-14 2016-06-08 中国科学院力学研究所 Heater nozzle based on spiral twisting number optimization
CN109654530A (en) * 2019-01-11 2019-04-19 哈尔滨工程大学 A kind of plasma ignition and auxiliary combustion equipment for low calorific value gas fuel
CN111649342A (en) * 2020-06-02 2020-09-11 西安交通大学 Low NOx combustor is burnt out to extremely low calorific value associated gas resource utilization and carbon black

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100707

Termination date: 20151010

EXPY Termination of patent right or utility model