CN201715513U - Inferior high velocity burner - Google Patents
Inferior high velocity burner Download PDFInfo
- Publication number
- CN201715513U CN201715513U CN201020247016XU CN201020247016U CN201715513U CN 201715513 U CN201715513 U CN 201715513U CN 201020247016X U CN201020247016X U CN 201020247016XU CN 201020247016 U CN201020247016 U CN 201020247016U CN 201715513 U CN201715513 U CN 201715513U
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- spout
- combustion
- burner
- gas
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Abstract
The utility model discloses an inferior high velocity burner. The inferior high velocity burner comprises an air distributor (2) arranged at the back of a hollow cavity of the inferior high velocity burner; a gas distributor (1) passes through a hole at the middle of the air distributor (2) and extends into a combustion chamber (3); a burner outlet (5) is formed in the front of the combustion chamber (3); a shrinking mouth (4) is arranged between the combustion chamber (3) and the burner outlet (5); an air nozzle is arranged on the air distributor (2); a gas nozzle is arranged on the gas distributor (1); an shrinking angle A of the shrinking mouth (4) ranges from 30 degree to 90 degree; the gas nozzle comprises a circular hole shaped inner gas nozzle (9) and at least three outer gas nozzles (8). The inferior high velocity burner has the characteristics of stable combustion, well protection of burner body material, low probability of ejective flow bunch dispersion, violent exhaust gas disturbance, high temperature uniformity, and the like.
Description
Technical field
The utility model relates to a kind of inferior high combustion rate burner.
Background technology
The main feature of inferior high combustion rate burner is a waste gas spouting velocity height, about 50m/s～150m/s, and the waste gas momentum is big, and the gas backstreaming of burner exit is violent, whole heating space EGT uniformity height.Therefore, inferior high combustion rate burner is mainly used in various middle Low Temperature Heat Treatment stoves, utilizes the uniform furnace gas of temperature that workpiece is heated.
At present, various inferior high combustion rate burner waste gas spouting velocities can both reach requirement, but a fluid stream poor stability of waste gas ejection breaks away from burner and disperses soon afterwards, is unfavorable for driving exhaust gas recirculation and furnace gas disturbance.This is because the inertia that the ejection power of waste gas is mainly derived from gas when flowing into burner, and the power of burning diffusion, rather than direct, a stable static-pressure field.Simultaneously, existing inferior high combustion rate burner also have that flame holding is poor, the ignition temperature height, to problems such as inner part material requirement height.
The utility model content
The purpose of this utility model provides a kind of flameholding, sprays the inferior high combustion rate burner that a fluid stream is difficult for dispersing.
The technical solution of the utility model is as follows:
A kind of inferior high combustion rate burner is characterized in that: described inferior high combustion rate burner comprises the air distributor that is arranged at inferior high speed nozzle cavity rear portion, and gas distributor passes the hole at air distributor middle part and stretches in the combustion chamber, and the front portion of combustion chamber is the burner outlet; Between described combustion chamber and the burner outlet reducing A is set, described air distributor is provided with air port, and described gas distributor is provided with the combustion gas spout.
As further optimization, the scope of reducing angle of throat A is 30 °～90 ° between described combustion chamber and the burner outlet.
Described combustion gas spout comprises the internal layer combustion gas spout and the outer combustion gas spout of circle hole shape, and described outer combustion gas spout is no less than 1 group, and every group of spout quantity is no less than 3.
The axis of every group of outer combustion gas spout is positioned on the same taper seat, and the taper seat summit is positioned on the axis of combustion chamber, and the scope of cone angle B is 50 °～180 °, and the ratio that every group of outer combustion gas area of injection orifice sum accounts for the combustion gas spout gross area is 5%～30%; The ratio that internal layer combustion gas spout axis and combustion chamber dead in line, the area of spout account for the combustion gas spout gross area is 40%～80%.
Air port on the described air distributor comprises at least one group of outer air spout, and the inboard of outer air spout is provided with one group of inner air spout; The quantity of spout all is no less than 3 in described every group of outer air spout and the inner air spout.
The axis of described each outer air spout is parallel with the axis of combustion chamber, 20%～80% of the area of injection orifice sum duty gas blowout mouth gross area of every group of outer air spout; The axis of each inner air spout is parallel to each other, and becomes certain included angle C with the combustion chamber axis, and the scope of angle C is 0 °～45 °, 10%～40% of the area of injection orifice sum duty gas blowout mouth gross area of inner air spout.
Described burner discharge area F2 is 0.3: 1～0.8: 1 with the ratio of the sectional area F1 of combustion chamber.
Effective effect of the present utility model is:
Adopt this structure, the at first mixed combustion of the inner air of outer combustion gas and rotation at the incendiary source of the inner formation temperature of burner, has been guaranteed burner combustion stability; Air and combustion gas are above at twice to be participated in reacting, and the outer air ratio is big, and is far away apart from combustion gas, slowed down the combustion chamber combustion process, and 50%～80% combustion gas avoids chamber temperature too high in the combustion chamber internal combustion; Outer air is close to the combustion chamber inwall, the combustion chamber inwall is cooled off the protection combustor outer casing; Chamber gas temperature sharply increases, volume expands rapidly, forms stable back pressure in the combustion chamber, promotes high-temperature gas from stable that a fluid stream sprays at a high speed, forms stable recirculating zone around the burner outlet.
The inner air rotation sprays into the combustion chamber, outer coal gas is with certain angle directive air, air is rotating and outer coal gas mixed combustion, air swirl has improved flame holding, near air distributor and gas distributor, form a plurality of stable little torches, for burner provides stable incendiary source, avoid occurring stopping working, taking off accidents such as fire; Outer air and internal layer combustion gas ratio are big, distance, and mixed combustion is slow, and fuel is 50%～80% in the ratio of combustion chamber internal combustion, and control burning indoor temperature is no more than 1200 ℃, has effectively protected air distributor, gas distributor inner body; Outer air is close to the combustion chamber inwall, and combustor outer casing is had better cooling effect, has reduced burner appearance temperature.Reducing between burner outlet and the combustion chamber makes the gas that rapid intensification is expanded form stable back pressure in the combustion chamber, drives waste gas with stable stream thigh ejection burner, forms stable recirculating zone around the burner outlet.
The utility model good stability, the burner muzzle velocity is big, and the backflow disturbance is violent, skin temperature is low, and can be widely used in industries such as metallurgy, machinery, chemical industry is the Thermal Equipment of fuel with gas, particularly various middle Low Temperature Heat Treatment stoves.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment;
Accompanying drawing 2 is the structural representation of the part 2 among Fig. 1;
Accompanying drawing 3 is the right view of accompanying drawing 2;
Accompanying drawing 4 is the structural representation of part 1 among Fig. 1;
Accompanying drawing 5 is the right view of Fig. 4.
Among the figure: part 1 is that gas distributor, part 2 are that air distributor, part 3 are that combustion chamber, part 4 are that reducing, part 5 are that burner outlet, part 6 are that inner air spout, part 7 are that outer air spout, part 8 are that outer combustion gas spout, part 9 are internal layer combustion gas spouts.
The specific embodiment
Below in conjunction with drawings and the specific embodiments the utility model is further described:
Extremely shown in Figure 5 as Fig. 1:
Be provided with on the gas distributor 1 and be no less than two groups of combustion gas spouts, outer combustion gas spout 8 quantity are no less than 3, the spout axis is positioned on the same taper seat, the summit of taper seat is positioned on 3 axis of combustion chamber, the scope of conical surface included angle B is 50 °～180 °, and the ratio that every group of outer combustion gas area of injection orifice sum accounts for the combustion gas spout gross area is 5%～30%; Internal layer combustion gas spout 9 is single circular hole, spout axis and combustion chamber dead in line, and the ratio that the area of spout accounts for the combustion gas spout gross area is 40%～80%.
Such as establishing one group of outer combustion gas spout, the ratio that the area of injection orifice sum accounts for the combustion gas spout gross area is 25%, the ratio that internal layer combustion gas spout accounts for the combustion gas spout gross area is 75%, 3 groups of outer combustion gas spouts also can be set, the ratio that every group of area of injection orifice sum accounts for the combustion gas spout gross area is followed successively by 5%, 15% and 25%, and the ratio that internal layer combustion gas spout accounts for the combustion gas spout gross area is 55%.
Air port on the described air distributor 2 comprises at least one group of outer air spout 7, and the inboard of outer air spout is provided with one group of inner air spout 6; The quantity of spout all is no less than 3 in described every group of outer air spout 7 and the inner air spout 6.Described each outer air spout 7 axis are parallel with the axis of combustion chamber, 20%～80% of the area of injection orifice sum duty gas blowout mouth gross area of every group of outer air spout 7; The axis of each inner air spout 6 is parallel to each other, and becomes certain included angle C with the combustion chamber axis, and the scope of angle C is 0 °～45 °, 10%～40% of the area of injection orifice sum duty gas blowout mouth gross area of inner air spout 6.
Such as one group of outer air spout 7 being set, 75% of the ratio of its area of injection orifice duty gas blowout mouth gross area, 25% of the ratio of the area of injection orifice duty gas blowout mouth gross area of inner air spout 6.
Two groups of outer air spouts 7 also can be set, the ratio of every group of duty gas blowout mouth gross area be followed successively by 60% and 30%, 10% of the ratio of the area of injection orifice duty gas blowout mouth gross area of inner air spout 6.
Three groups of outer air spouts 7 can certainly be set, the ratio of every group of duty gas blowout mouth gross area be followed successively by 40%, 30% and 20%, 10% of the ratio of the area of injection orifice duty gas blowout mouth gross area of inner air spout 6.
Between burner outlet 5 and the combustion chamber 3 reducing 4 is set, the scope of reducing angle of throat A is 30 °～90 °, and the burner discharge area is 0.3: 1～0.8: 1 with the ratio that section of combustion chamber is amassed.
Air sprays into combustion chamber 3 from 6 rotations of inner air spout, combustion gas is at a certain angle from outer combustion gas spout 8 directive air, air is rotating with combustion gas mixing and is burning, near air distributor 2 and gas distributor 1, form a plurality of stable little torches, for burner provides stable incendiary source, avoid occurring stopping working, taking off accidents such as fire, improved the conciliation ratio of burner, guaranteed the problem of burner.
Air and fuel participate in mixed combustion several times, and outer air spout 7 and internal layer combustion gas spout 9 area ratios are big, distance, and the internal layer combustion gas is the sub-thread a fluid stream.Therefore, the part combustion gas directly sprays burner, has only 50%～80% combustion gas to finish combustion reaction in combustion chamber 3, and Controllable Temperature can effectively improve the life-span of inner body built in below 1200 ℃ in the combustion chamber 3.
Reducing 4 makes the gas that rapid intensification is expanded form stable back pressure in combustion chamber 3, drives waste gas with stable stream thigh ejection burner, forms stable recirculating zone around burner outlet 5.
The utlity model has flameholding,, ejection a fluid stream be difficult for disperse, waste gas disturbance violent, temperature homogeneity good etc. characteristics good to the burner body material protection.
Claims (7)
1. inferior high combustion rate burner, it is characterized in that: described inferior high combustion rate burner comprises the air distributor (2) that is arranged at inferior high speed nozzle cavity rear portion, gas distributor (1) passes the hole at air distributor (2) middle part and stretches in the combustion chamber (3), and the front portion of combustion chamber (3) is burner outlet (5); Between described combustion chamber (3) and the burner outlet (5) reducing (4) is set, described air distributor (2) is provided with air port, and described gas distributor (1) is provided with the combustion gas spout.
2. inferior high combustion rate burner as claimed in claim 1 is characterized in that: the scope of described reducing (4) angle of throat A is 30 °～90 °.
3. inferior high combustion rate burner as claimed in claim 1 is characterized in that: described combustion gas spout comprises the internal layer combustion gas spout (9) and the outer combustion gas spout (8) of circle hole shape, and described outer combustion gas spout is no less than 1 group, and every group of spout quantity is no less than 3.
4. inferior high combustion rate burner as claimed in claim 3, it is characterized in that: the axis of described every group of outer combustion gas spout (8) is positioned on the same taper seat, the taper seat summit is positioned on the axis of combustion chamber (3), the scope of cone angle B is 50 °～180 °, and the ratio that every group of outer combustion gas area of injection orifice sum accounts for the combustion gas spout gross area is 5%～30%; The ratio that internal layer combustion gas spout (10) axis and combustion chamber (3) dead in line, the area of spout account for the combustion gas spout gross area is 40%～80%.
5. inferior high combustion rate burner as claimed in claim 1 is characterized in that: the air port on the described air distributor (2) comprises at least one group of outer air spout (7), and the inboard of outer air spout is provided with one group of inner air spout (6); The quantity of spout all is no less than 3 in described every group of outer air spout (7) and the inner air spout (6).
6. inferior high combustion rate burner as claimed in claim 5 is characterized in that: described each outer air spout (7) axis is parallel with the axis of combustion chamber, 20%～80% of the area of injection orifice sum duty gas blowout mouth gross area of every group of outer air spout (7); The axis of each inner air spout (6) is parallel to each other, and becomes certain included angle C with the combustion chamber axis, and the scope of angle C is 0 °～45 °, 10%～40% of the area of injection orifice sum duty gas blowout mouth gross area of inner air spout (6).
7. as the arbitrary described inferior high combustion rate burner of claim 1 to 6, it is characterized in that: the ratio of the sectional area F1 of burner discharge area F2 and combustion chamber (3) is 0.3: 1～0.8: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020247016XU CN201715513U (en) | 2010-07-02 | 2010-07-02 | Inferior high velocity burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020247016XU CN201715513U (en) | 2010-07-02 | 2010-07-02 | Inferior high velocity burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715513U true CN201715513U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020247016XU Expired - Fee Related CN201715513U (en) | 2010-07-02 | 2010-07-02 | Inferior high velocity burner |
Country Status (1)
| Country | Link |
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| CN (1) | CN201715513U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245054A (en) * | 2013-05-31 | 2013-08-14 | 新奥科技发展有限公司 | High-temperature gas burning ejector |
| CN103742914A (en) * | 2014-01-27 | 2014-04-23 | 上海伊德科技有限公司 | Ceramic kiln burner and nozzle thereof |
| CN104748119A (en) * | 2015-02-15 | 2015-07-01 | 重庆赛迪工业炉有限公司 | Half-premixed low NOx burner |
| CN107781814A (en) * | 2016-08-30 | 2018-03-09 | 天津征鑫热能设备制造有限公司 | The burner of novel energy-conserving |
| CN108443885A (en) * | 2018-03-27 | 2018-08-24 | 中国计量大学 | A kind of burner for fuel gases calorific value measuring device |
| CN109323279A (en) * | 2018-10-09 | 2019-02-12 | 岳阳远东节能设备有限公司 | Burner is directly heated in a kind of denitrating flue gas pipeline |
-
2010
- 2010-07-02 CN CN201020247016XU patent/CN201715513U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245054A (en) * | 2013-05-31 | 2013-08-14 | 新奥科技发展有限公司 | High-temperature gas burning ejector |
| CN103245054B (en) * | 2013-05-31 | 2015-10-07 | 新奥科技发展有限公司 | A kind of high-temperature gas fuel injector |
| CN103742914A (en) * | 2014-01-27 | 2014-04-23 | 上海伊德科技有限公司 | Ceramic kiln burner and nozzle thereof |
| CN104748119A (en) * | 2015-02-15 | 2015-07-01 | 重庆赛迪工业炉有限公司 | Half-premixed low NOx burner |
| CN107781814A (en) * | 2016-08-30 | 2018-03-09 | 天津征鑫热能设备制造有限公司 | The burner of novel energy-conserving |
| CN108443885A (en) * | 2018-03-27 | 2018-08-24 | 中国计量大学 | A kind of burner for fuel gases calorific value measuring device |
| CN109323279A (en) * | 2018-10-09 | 2019-02-12 | 岳阳远东节能设备有限公司 | Burner is directly heated in a kind of denitrating flue gas pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING SAIDI THERMAL ENVIRONMENTAL PROTECTION E Free format text: FORMER NAME: CHONGQING SAIDI INDUSTRIAL FURNACE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 401122 Chongqing Shibei District CCID Road No. 1 Patentee after: Chongqing CCID thermal technology environment-friendly engineering Technology Co., Ltd. Address before: 400013 Chongqing City, Yuzhong District No. 2 Steel Road, No. 1 Patentee before: Chongqing Saidi Industrial Furnace Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20180702 |