CN1793728A - Gas flame smooth burning method and smooth burner - Google Patents
Gas flame smooth burning method and smooth burner Download PDFInfo
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- CN1793728A CN1793728A CN 200610000772 CN200610000772A CN1793728A CN 1793728 A CN1793728 A CN 1793728A CN 200610000772 CN200610000772 CN 200610000772 CN 200610000772 A CN200610000772 A CN 200610000772A CN 1793728 A CN1793728 A CN 1793728A
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Abstract
The invention relates to a gas flame combustion stabilizing method and device, forming a screening space between outer, inner ring and porous plate to form a flowing relatively closed stable return flow region in the cavity of the inner cup, so as to make external air sucked from air inlet hole into the cavity of the inner cup under the sucking action of fuel gas efflux, and as igniting, the ignited external flame will ignite the mixed gas in the cavity of the inner cup; once the external flame goes out by external influence, the flame in the cavity of the inner cup is screened in a space to continue combustion and once the external influence is eliminated, the flame in the space conversely ignites the external flame, so as to realize the stable combustion of the burner.
Description
Technical field
The present invention relates to a kind of gas combustion method and burner, particularly about a kind of gas flame smooth burning method and stabilizer that can both smooth combustion under any ambient atmosphere environment.
Background technology
Steady combustion is the basis of gas flame burner design, generally the understanding to the steady combustion of gas rests on the heat effect of backflow to initial flow of fuel diverges of high-temperature flue gas always, and the retention flame is to reach by the high temperature gases recirculating structure of using bluff body or cyclone to produce.High temperature, low speed and reverse flow attribute that recirculating zone self is intrinsic are ignition source zones the most favourable in the combustion process, can hold flame in case catch fire.
Though these methods are applied in the industrial combustion system and are successful, but because hydrocyclone structure more complicated, be difficult to be applied in the general daily life, and can simple bluff body produce backflow and produce its shape of back that refluxes with big or small, all depend on direction and velocity magnitude that outer gas stream flows, these methods all have tangible limitation.Surpass 50 kilometers/hour even reach under the weather conditions of blast brutality more than 200 kilometers/hour at instantaneous wind speed, make flame stabilization, it is considered herein that independent recirculating zone can not realize the smooth combustion of gas flame, must rely on common good the fire environment that forms in a shielding cavity that is independent of extraneous weather conditions and high temperature gases recirculating district to realize the gas flame stabilizing burning.
Summary of the invention
The purpose of this invention is to provide a kind of under various external environments gas flame do not put out and can be kept the gas flame smooth burning method and the stabilizer of smooth combustion.
For achieving the above object, the present invention takes following technical scheme:
A kind of gas flame smooth burning method, it is to form a shielding space outside between cup, interior ring and the porous plate, the internal flow of ring cavity body forms the stable recirculation zone of a relative closure in making, make outside air suck interior ring cavity body from air intlet by the effect of entrainmenting of gaseous fuel jet, during igniting, the mist in the external flame that is ignited can ignite in the ring cavity body; In case when outside flame was extinguished by ectocine, the flame that is positioned at the ring cavity body was shielded in a space and burns away, in case after ectocine is eliminated, internal flame ignite the conversely again flame of outside and then the smooth combustion of realization burner.
Ring cavity body in described outside air is inhaled into via the passage between interior ring and the outer cup.
A kind of gas flame steady burner, it is characterized in that: it comprises ring in an outer cup and, the height of described outer cup cavity is greater than ring height in described, ring is fixed on the bottom surface of described outer cup in described, and the two axial lines of ring and outer cup overlaps in described, the bottom center of described outer cup is provided with a gas fuel nozzle, be respectively arranged with air intlet on ring and the outer cup in described, the outer cup of ring top is gone up a fixedly connected porous plate in described, offer the mixed airflow outlet on the described porous plate, described gas fuel nozzle bottom is the gaseous fuel import.
Air intlet on described interior ring and the outer cup is separately positioned on the wall of described interior ring and outer cup.
Air intlet in described on the ring is arranged on the described internal ring wall face, and the air intlet on the described outer cup is arranged on the passage bottom between described outer cup and the interior ring.
The position of described gas fuel nozzle setting is higher than the bottom surface of described outer cup, but is lower than described interior ring height half.
The shape of cross section of described outer cup, interior ring is rounded, oval, a kind of in triangle, quadrangle and the polygon.
Combining of a kind of and more than one positions between the edge, central authorities, edge that the outlet of described mixed airflow is arranged on described porous plate and the central authorities.
The combination that is shaped as circle, Long Circle, quadrangle, triangle, a kind of and more than one shapes in cross of described air intlet and mixed airflow outlet.
The present invention is owing to take above technical scheme; it has the following advantages: 1; the present invention is owing to be provided with an outer cup; a highly lower interior cup and a porous plate; thereby formed a shielding cavity; it can not only protect the flame root of flame (or protect at least) not put out under various environment; and the recirculating zone that can also produce a self-stabilization; this recirculating zone be independent of wind outside to; therefore change insensitive to precipitate wind speed; when burning takes place; gaseous fuel is the ring cavity body in nozzle is injected at a high speed; make the cavity between interior ring interior sidewall surface and gas fuel nozzle produce negative pressure; and then make extraneous air below outer glass, go up the interior ring cavity body of air intlet suction outside the warp bottom the cup; the disturbance that the air of ring cavity body and gaseous fuel jet produce in entering; form a stronger swirling flow collar vortex; make gaseous fuel mix mutually in this zone with air; part mist adds the gaseous fuel jet; finally together flow out cavity via the mixed airflow outlet of porous plate; with the further mixed combustion of extraneous air, form external flame.2, the inventive method makes the gas flame burner have the path of igniting mutually that connects inside and outside flame by the above-mentioned geometry that provides, and during igniting, is in the well-mixed gas of swirling flow collar vortex in outside combustion flame can ignite in the ring cavity body; In case outside flame is influenced when extinguishing by fortuitous event such as high wind, the flame that is positioned at the ring cavity body but is shielded in a space, local instantaneous flow regime is under the speed that is all caning be controlled in the flame-out requirement of burning under any extraneous wind condition in the ring cavity body in making, and the flame of having avoided effectively lighting is put out by swiftly flowing wind-force.After in case ectocine is eliminated, the internal flame that the burns away outside combustion flame that can ignite conversely again, thus make gas flame be in stable fired state.3, the present invention compares with the reflux type of traditional high-temperature flue gas, be provided with a shielding cavity that is independent of extraneous weather conditions, injection owing to gaseous fuel in this shielding cavity forms a high temperature gases recirculating district, forms good a fire environment jointly and realizes the gas flame stabilizing burning; This shielding cavity can not only protect flame (or the root of flame) at least not put out under various extraneous weather conditions; and the recirculating zone that can also produce a self-stabilization; this recirculating zone be independent of wind outside to, and change insensitive to precipitate wind speed.The present invention has wide industrial and commercial application prospect, such as being used in the Olympic Games or the various occasions such as other sports meet torch, celebration fire spot and picnic fire.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the another kind of structural representation of the present invention
Fig. 3 is the gas flow schematic diagram of Fig. 1
Fig. 4 is the gas flow schematic diagram of Fig. 2.
The specific embodiment
As shown in Figure 1, the present invention includes gas fuel nozzle 1, interior ring 2, outer cup 3 and porous plate 4.Outer cup 3 housing depths are greater than the height of interior ring 2, interior ring 2 external diameters are less than outer cup 3 cavity internal diameters, two deads in line of interior ring 2 and outer cup 3, and interior ring 2 is fixed on outer cup 3 bottom surfaces, outer cup 3 bottom center are provided with gas fuel nozzle 1, offer air intlet B on the wall of interior ring 2, offer air intlet C on the wall of cup 3 outside, the position height that gas fuel nozzle 1 is provided with is higher than the bottom surface of outer cup 3, but encircles 2 height half in being lower than; Porous plate 4 is positioned at the top of ring 2, and is fixed on outer cup 3 tops, offers mixed airflow outlet D on the porous plate 4, and gas fuel nozzle 1 bottom is gaseous fuel import A.
As shown in Figure 2, present embodiment and the foregoing description difference are the positions that is provided with of air intlet C, present embodiment be interior ring 2 and outside offer air intlet C on outer cup 3 bottom surfaces of cup between 3.
The inventive method is to form a shielding space outside between cup 3, interior ring 2 and the porous plate 4, and the internal flow of ring cavity body forms the stable recirculation zone of a relative closure in making, the flame in cavity air velocity and direction to external world has independence; Local instantaneous velocity is all caning be controlled under any extraneous weather conditions under the flame-out speed that requires of burning in the interior ring cavity body, and the flame of having avoided effectively lighting is put out by swiftly flowing wind-force.
As Fig. 3, shown in Figure 4, when the present invention takes place when burning, gaseous fuel is ring 2 cavitys in gas fuel nozzle 1 is injected at a high speed, make and be positioned near the negative pressure that forms of the inboard air intlet B of ring 2 walls, and then make the air intlet C of extraneous air on outer cup 3, passage between interior ring 2 and the outer cup 3, and the air intlet B on interior ring 2 walls sucks interior ring 2 cavitys, the disturbance that the air of ring 2 cavitys and gaseous fuel jet produce in entering, form a stronger swirling flow collar vortex, make gaseous fuel mix mutually in this zone with air, part mist adds the gaseous fuel jet, final together flow out cavity via the mixed airflow outlet D of porous plate 4, with the further mixed combustion of extraneous air, form external flame; Most flames of whole gas burner occur in porous plate 4 tops, and flame only accounts for a very little part in the cavity between porous plate 4 and the interior ring 2.
The present invention will make the gas flame burner have the path of igniting mutually that connects inside and outside flame, during igniting, be in the well-mixed gas of swirling flow collar vortex in outside combustion flame can ignite in ring 2 cavitys; In case outside flame is influenced when extinguishing by fortuitous event such as high wind, the flame that is positioned at the ring cavity body but is shielded in a space and can be subjected to influences such as extraneous wind-force and extinguishes, after in case ectocine is eliminated, the internal flame that the burns away outside combustion flame that can ignite conversely again, thus make gas flame be in stable fired state.Therefore, the flame of inside cavity can play the effect of the external firing that continues to ignite, and not exclusively extinguishes thereby can remain whole flame under the situation of extraneous environmental change impermanence.
In the foregoing description, the shape of cross section of outer cup 3, interior ring 2 can be taked different shape, and such as rounded, oval, triangle, quadrangle and polygon etc., the cross sectional shape of interior ring 2 and outer cup 3 can be identical, also can be the combination of different cross section.
In the foregoing description, air intlet B, C on interior ring 2 and the outer cup 3 can be equally distributed a plurality of, and the opening shape of air intlet B, C can be various, such as rounded, Long Circle, quadrangle, triangle, cross etc.
In the foregoing description, mixed airflow outlet C can be arranged on edge, the central authorities of porous plate 4, or edge and central authorities all are provided with.Mixed airflow outlet can be equally distributed a plurality of, and its shape can be circle, Long Circle, quadrangle, triangle, cross etc. various.
Claims (10)
1, a kind of gas flame smooth burning method, it is to form a shielding space outside between cup, interior ring and the porous plate, the internal flow of ring cavity body forms the stable recirculation zone of a relative closure in making, make outside air suck interior ring cavity body from air intlet by the effect of entrainmenting of gaseous fuel jet, during igniting, the mist in the external flame that is ignited can ignite in the ring cavity body; In case when outside flame was extinguished by ectocine, the flame that is positioned at the ring cavity body was shielded in a space and burns away, in case after ectocine is eliminated, internal flame ignite the conversely again flame of outside and then the smooth combustion of realization burner.
2, a kind of gas flame smooth burning method as claimed in claim 1 is characterized in that: ring cavity body in described outside air is inhaled into via the passage between interior ring and the outer cup.
3, a kind of gas flame steady burner, it is characterized in that: it comprises ring in an outer cup and, the height of described outer cup cavity is greater than ring height in described, ring is fixed on the bottom surface of described outer cup in described, and the two axial lines of ring and outer cup overlaps in described, the bottom center of described outer cup is provided with a gas fuel nozzle, be respectively arranged with air intlet on ring and the outer cup in described, the outer cup of ring top is gone up a fixedly connected porous plate in described, offer the mixed airflow outlet on the described porous plate, described gas fuel nozzle bottom is the gaseous fuel import.
4, a kind of gas flame steady burner as claimed in claim 3 is characterized in that: the air intlet on described interior ring and the outer cup is separately positioned on the wall of described interior ring and outer cup.
5, a kind of gas flame steady burner as claimed in claim 3 is characterized in that: the air intlet in described on the ring is arranged on the described internal ring wall face, and the air intlet on the described outer cup is arranged on the passage bottom between described outer cup and the interior ring.
6, as claim 3 or 4 or 5 described a kind of gas flame steady burners, it is characterized in that: the position of described gas fuel nozzle setting is higher than the bottom surface of described outer cup, but is lower than described interior ring height half.
7, as claim 3 or 4 or 5 described a kind of gas flame steady burners, it is characterized in that: the shape of cross section of described outer cup, interior ring is rounded, oval, a kind of in triangle, quadrangle and the polygon.
8, a kind of gas flame steady burner as claimed in claim 6 is characterized in that: the shape of cross section of described outer cup, interior ring is rounded, oval, a kind of in triangle, quadrangle and the polygon.
9, as the described a kind of gas flame steady burner of claim 3～8, it is characterized in that: the combining of a kind of and more than one positions between the edge, central authorities, edge that the outlet of described mixed airflow is arranged on described porous plate and the central authorities.
10, as the described a kind of gas flame steady burner of claim 3～8, it is characterized in that: the combination that is shaped as circle, Long Circle, quadrangle, triangle, a kind of and more than one shapes in cross of described air intlet and mixed airflow outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610000772 CN1793728A (en) | 2006-01-12 | 2006-01-12 | Gas flame smooth burning method and smooth burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610000772 CN1793728A (en) | 2006-01-12 | 2006-01-12 | Gas flame smooth burning method and smooth burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1793728A true CN1793728A (en) | 2006-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610000772 Pending CN1793728A (en) | 2006-01-12 | 2006-01-12 | Gas flame smooth burning method and smooth burner |
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| CN (1) | CN1793728A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400963C (en) * | 2007-03-15 | 2008-07-09 | 中国航天科工集团公司第三研究院第三十一研究所 | Device for combusting stably of gas flame torch |
| CN102748775A (en) * | 2012-07-23 | 2012-10-24 | 集美大学 | Streamline flame stabilizer with built-in ignition sources |
| WO2018090385A1 (en) * | 2016-11-21 | 2018-05-24 | 深圳智慧能源技术有限公司 | Combustion chamber of gas turbine engine |
-
2006
- 2006-01-12 CN CN 200610000772 patent/CN1793728A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400963C (en) * | 2007-03-15 | 2008-07-09 | 中国航天科工集团公司第三研究院第三十一研究所 | Device for combusting stably of gas flame torch |
| CN102748775A (en) * | 2012-07-23 | 2012-10-24 | 集美大学 | Streamline flame stabilizer with built-in ignition sources |
| CN102748775B (en) * | 2012-07-23 | 2014-11-19 | 集美大学 | Streamline flame stabilizer with built-in ignition sources |
| WO2018090385A1 (en) * | 2016-11-21 | 2018-05-24 | 深圳智慧能源技术有限公司 | Combustion chamber of gas turbine engine |
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