CN103697499A - Swirler with variable swirling number - Google Patents
Swirler with variable swirling number Download PDFInfo
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- CN103697499A CN103697499A CN201410018449.0A CN201410018449A CN103697499A CN 103697499 A CN103697499 A CN 103697499A CN 201410018449 A CN201410018449 A CN 201410018449A CN 103697499 A CN103697499 A CN 103697499A
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- swirler
- pipe
- gas
- tube body
- cyclone
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Abstract
The invention relates to a swirler with variable swirling number. The swirler is characterized in that the pore diameters of a gas flow pipe and a gas outlet pipe are the same and the gas flow pipe and the gas outlet pipe are fastened through a flange; a gas inlet pipe is communicated with the gas flow pipe, wherein the pore diameter of the gas inlet pipe is smaller than that of the gas flow pipe; a swirler main body is fixed in the joint part of the gas flow pipe and the gas outlet pipe and is provided with an inner pipe body and an outer pipe body; the bottom of the inner pipe body is provided with a central pore plate, and gas distribution holes are uniformly and symmetrically formed in the central pore plate; the central pore plate is detachable; swirling blades are vertically and uniformly fixed between the inner pipe body and the outer pipe body in the peripheral direction. According to the swirler with variable swirling number, aiming at different gas components, the swirling number of the swirler is changed by changing the structures of the swirling blades and the pore number of the central pore plate and changing the blockage ratio of an annular passage of the swirler to a central passage of the swirler; the swirler can be suitable for efficient and stable combustion under the condition of different components, the applicable range of the equipment is enlarged, and the work efficiency is improved; the emission of NOx can be reduced by selecting a reasonable swirling combustion manner, thus the combustion is clean.
Description
Technical field
The present invention relates to a kind of industrial combustion gas utensil.
Background technology
As one of effective means of control combustion stability and intensity, swirl flow combustion all has a wide range of applications in gas turbine and boiler furnace.And in IGCC(coal gasification combined cycle) there is important application potential in technology.
Swirl flow combustion is one of major way of gas fuel combustion, and cyclone mode can be divided into low revolving and Gao Xuan.Low swirl flow combustion is the axial velocity of utilizing the circumferential speed reduction combustion gas of swirl vane generation, makes its smooth combustion; High turbulent burner is to utilize the raw backflow of high eddy flow movable property to stabilize the flame.Swirl flow combustion has solved the stable problem of gas fuel combustion to a certain extent, yet according to different gaseous fuel components, needs different cyclone modes to make the gas flame of its different component stable.The present invention discloses a kind of variable swirling number turbulent burner, for different Gas Components, by changing the hole count of swirl vane structure and center orifice plate, change cyclone circular passage and central passage blockage ratio, and then the swirling number of change cyclone, for stablizing the gas flame of different component, stablize.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes following technical scheme: a kind of variable swirling number cyclone, it has following characteristics: gas runner pipe equates with escape pipe aperture and to pass through flange fastening, and the air inlet pipe that aperture is less than described gas runner pipe is communicated with gas runner pipe.In the junction surface of gas runner pipe and escape pipe, be fixed with cyclone body.Cyclone body is provided with interior tube body and outer tube body.Interior tube body bottom is provided with the center orifice plate of minute pore arranging symmetrically.Center orifice plate replaceable.The vertical uniform swirl vane that is fixed with of circumferencial direction between interior tube body and outer tube body.Divide the scope of hole diameter for being 3.78mm to 4.60mm.Dividing the diameter optimum value of pore is 3.90mm.The radius r of interior tube body
1for 20.00mm, the radius r of outer tube body
2for 30.00mm.The quantity n=23 of swirl vane.Swirl vane inside height L=30.00mm.The blade angle θ of swirl vane
0=37 °.The inward flange radius R of swirl vane
1=49.85mm, outward flange radius R
2=74.77mm.
Adopted the variable swirling number turbulent burner of technique scheme, for different Gas Components, by changing the hole count of swirl vane structure and center orifice plate, change cyclone circular passage and central passage blockage ratio, and then the swirling number of change cyclone, can adapt to the burning of efficient stable under different component condition, that has improved equipment can range of application.Increase work efficiency.Choose the discharge that rational swirl flow combustion mode can reduce NOX, thus clean burning.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiments, the invention will be further described.
Fig. 1 is the structure assembling schematic diagram of a kind of variable swirling number cyclone of the present invention
Fig. 2 is the integrally-built profile of a kind of variable swirling number cyclone of the present invention
Fig. 3 is that the parts at Fig. 1 middle part are the profile of cyclone body
Fig. 4 is that the parts at Fig. 1 middle part are the stereogram of cyclone body
Fig. 5 is the top view of Fig. 5, has shown the structure of center orifice plate
Fig. 6 be in Fig. 1 sequence number be 3 with the assembling schematic diagram of the sequence number part that is 5
Fig. 7 is the organigram of the part that in Fig. 1, sequence number is 5
In figure: 1, air inlet pipe, 2, gas runner pipe, 3, interior tube body, 4, center orifice plate, 5, swirl vane, 6, outer tube body, 7, flange, 8, minute pore, 9, escape pipe.
The specific embodiment
This device is comprised of cyclone body and combustion gas runner.
Cyclone body comprises: interior tube body 3 and outer tube body 6, interior tube body 3 bottoms are provided with the center orifice plate 4 of minute pore 8 arranging symmetrically, the vertical uniform swirl vane 5 that is fixed with of circumferencial direction between interior tube body 3 and outer tube body 6.
Gas-flow duct device comprises: air inlet pipe 1, gas runner pipe 2, mounting flange 6, escape pipe 9, and the flange 7 that connects gas runner pipe 2 and escape pipe 9.
On the center orifice plate 4 of cyclone body, the size of the quantity of minute pore 8 and minute pore 8 diameters can change;
The described interior tube body 3 of cyclone body, outer tube body) radius, the quantity of swirl vane 5, the inside height of swirl vane 5, the blade angle of swirl vane 5, and the inside and outside edge radius of swirl vane 5 also can change.
By the above variation in cyclone body, can change the swirling number of cyclone, also change the cyclone mode of cyclone, and then realize the variation of the mass flow of the circular passage that formed by cyclone body in cyclone and the central passage in escape pipe 9.
In cyclone body, the design of swirl vane 5 is as follows:
R
1: cyclone internal diameter
R
2: cyclone external diameter
R
1: blade inward flange radius
R
2: blade outward flange radius
θ
0: blade angle
S: swirling number
L: blade inside height
N: the number of blade
In 2 the present embodiment:
n＝23
In cyclone body, in center orifice plate 4, divide the arrangement mode of pore 8 as shown in Figure 5.
Dividing the diameter range of pore 8 is 3.78mm to 4.60mm.
In the present embodiment, take aperture as 3.90mm be optimum value.
The technical scheme of a kind of variable swirling number turbulent burner of the present invention, for different Gas Components, by changing the hole count of swirl vane structure and center orifice plate, change cyclone circular passage and central passage blockage ratio, and then the swirling number of change cyclone, make the gas flame smooth combustion of different component.
Claims (9)
1. a variable swirling number cyclone, it is characterized in that: gas runner pipe (2) equates with escape pipe (9) aperture and to pass through flange (7) fastening, the air inlet pipe (1) that aperture is less than described gas runner pipe (2) is communicated with described gas runner pipe (2), in the junction surface of described gas runner pipe (2) and escape pipe (9), be fixed with cyclone body, described cyclone body is provided with interior tube body (3) and outer tube body (6), described interior tube body (3) bottom is provided with the center orifice plate (4) of minute pore (8) arranging symmetrically, the vertical uniform swirl vane (5) that is fixed with of circumferencial direction between interior tube body (3) and outer tube body (6).
2. variable swirling number cyclone according to claim 1, is characterized in that: center orifice plate (4) replaceable that is provided with a minute pore (8) that install the interior tube body that described cyclone body is provided with (3) bottom.
3. variable swirling number cyclone according to claim 1 and 2, is characterized in that: the scope of described minute pore (8) diameter is for being 3.78mm to 4.60mm.
4. variable swirling number cyclone according to claim 3, is characterized in that: described minute pore (8) diameter optimum value be 3.90mm.
5. variable swirling number cyclone according to claim 1, is characterized in that: the radius r of described interior tube body (3)
1for 20.00mm, the radius r of described outer tube body (6)
2for 30.00mm.
6. variable swirling number cyclone according to claim 1, is characterized in that: the quantity n=23 of described swirl vane (5).
7. variable swirling number cyclone according to claim 1, is characterized in that: the inside height L=30.00mm of described swirl vane (5).
8. variable swirling number cyclone according to claim 1, is characterized in that: the blade angle θ of described swirl vane (5)
0=37 °.
9. variable swirling number cyclone according to claim 1, is characterized in that: the inward flange radius R of described swirl vane (5)
1=49.85mm, outward flange radius R
2=74.77mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018449.0A CN103697499B (en) | 2014-01-15 | 2014-01-15 | A kind of variable swirling number cyclone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018449.0A CN103697499B (en) | 2014-01-15 | 2014-01-15 | A kind of variable swirling number cyclone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103697499A true CN103697499A (en) | 2014-04-02 |
| CN103697499B CN103697499B (en) | 2016-08-17 |
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ID=50359116
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410018449.0A Expired - Fee Related CN103697499B (en) | 2014-01-15 | 2014-01-15 | A kind of variable swirling number cyclone |
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| CN (1) | CN103697499B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748132A (en) * | 2015-04-14 | 2015-07-01 | 河南宏天实业有限公司 | Lifting micro-positive pressure energy concentration maintenance type torch burner |
| CN105180425A (en) * | 2015-10-12 | 2015-12-23 | 叙永县马岭粮油食品有限公司 | Natural gas hot-blast stove adopting flat flame burner |
| CN108413442A (en) * | 2018-04-12 | 2018-08-17 | 中国船舶重工集团公司第七0三研究所 | A kind of variable-flow cyclone |
| CN109607658A (en) * | 2018-12-30 | 2019-04-12 | 中海油能源发展股份有限公司安全环保分公司 | A kind of adjustable cyclone air-flotation device of swirl strength and operating method |
| CN110594733A (en) * | 2019-09-02 | 2019-12-20 | 杭州锅炉集团股份有限公司 | Converter gas burner with low NOx emission |
| CN111780163A (en) * | 2020-06-23 | 2020-10-16 | 江苏大学 | Swirler with continuously adjustable outlet airflow strength |
| CN113932250A (en) * | 2020-06-29 | 2022-01-14 | 中国航发商用航空发动机有限责任公司 | Combustion chamber capable of suppressing oscillatory combustion and control method thereof |
| CN114909676A (en) * | 2022-04-28 | 2022-08-16 | 西北工业大学 | Can regulate and control single-stage axial swirler of whirl intensity |
Citations (3)
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| US20100132364A1 (en) * | 2008-12-01 | 2010-06-03 | Myers Geoffrey D | Fuel nozzle detachable burner tube |
| CN102538009A (en) * | 2010-11-19 | 2012-07-04 | 通用电气公司 | Combustor premixer |
| CN203656984U (en) * | 2014-01-15 | 2014-06-18 | 大连海事大学 | Swirler with variable swirling number |
-
2014
- 2014-01-15 CN CN201410018449.0A patent/CN103697499B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100132364A1 (en) * | 2008-12-01 | 2010-06-03 | Myers Geoffrey D | Fuel nozzle detachable burner tube |
| CN102538009A (en) * | 2010-11-19 | 2012-07-04 | 通用电气公司 | Combustor premixer |
| CN203656984U (en) * | 2014-01-15 | 2014-06-18 | 大连海事大学 | Swirler with variable swirling number |
Non-Patent Citations (2)
| Title |
|---|
| 柳伟杰: "当量比对甲烷预混低旋流燃烧的影响", 《燃烧科学与技术》, vol. 20, no. 1, 5 November 2013 (2013-11-05), pages 66 * |
| 邓洋波: "低旋流燃烧和流动特性数值模拟研究", 《大连海事大学学报》, vol. 35, no. 4, 31 December 2009 (2009-12-31), pages 99 - 100 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748132A (en) * | 2015-04-14 | 2015-07-01 | 河南宏天实业有限公司 | Lifting micro-positive pressure energy concentration maintenance type torch burner |
| CN105180425A (en) * | 2015-10-12 | 2015-12-23 | 叙永县马岭粮油食品有限公司 | Natural gas hot-blast stove adopting flat flame burner |
| CN108413442A (en) * | 2018-04-12 | 2018-08-17 | 中国船舶重工集团公司第七0三研究所 | A kind of variable-flow cyclone |
| CN108413442B (en) * | 2018-04-12 | 2023-08-22 | 中国船舶重工集团公司第七0三研究所 | Variable flow cyclone |
| CN109607658A (en) * | 2018-12-30 | 2019-04-12 | 中海油能源发展股份有限公司安全环保分公司 | A kind of adjustable cyclone air-flotation device of swirl strength and operating method |
| CN109607658B (en) * | 2018-12-30 | 2023-12-15 | 中海油能源发展股份有限公司安全环保分公司 | Cyclone air floatation device with adjustable cyclone strength and operation method |
| CN110594733A (en) * | 2019-09-02 | 2019-12-20 | 杭州锅炉集团股份有限公司 | Converter gas burner with low NOx emission |
| CN111780163A (en) * | 2020-06-23 | 2020-10-16 | 江苏大学 | Swirler with continuously adjustable outlet airflow strength |
| CN113932250A (en) * | 2020-06-29 | 2022-01-14 | 中国航发商用航空发动机有限责任公司 | Combustion chamber capable of suppressing oscillatory combustion and control method thereof |
| CN114909676A (en) * | 2022-04-28 | 2022-08-16 | 西北工业大学 | Can regulate and control single-stage axial swirler of whirl intensity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103697499B (en) | 2016-08-17 |
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Granted publication date: 20160817 Termination date: 20180115 |