CN202852880U - Double-stage radial swirler - Google Patents
Double-stage radial swirler Download PDFInfo
- Publication number
- CN202852880U CN202852880U CN 201220504901 CN201220504901U CN202852880U CN 202852880 U CN202852880 U CN 202852880U CN 201220504901 CN201220504901 CN 201220504901 CN 201220504901 U CN201220504901 U CN 201220504901U CN 202852880 U CN202852880 U CN 202852880U
- Authority
- CN
- China
- Prior art keywords
- twin
- stage radial
- blade
- throat
- swirler
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides a double-stage radial swirler which comprises a first-stage swirler with an inner cavity and a second-stage swirler with an inner cavity. The first-stage swirler comprises a plurality of first vanes, wherein the plurality of first vanes are arranged at intervals and revolve in sequence to form a circle. The second-stage swirler comprises a plurality of second vanes, wherein the plurality of second vanes are arranged at intervals and revolve in sequence to form a circle. Due to the fact that the double-stage radial swirle is provided with the first vanes and the second vanes, high pressure gas rotates and sprays to a flame barrel after passing through first throat channels of the first vanes and second throat channels of the second vanes. Therefore, swirling intensity of the swirler is increased, atomization effect of mixture of the high pressure gas and fuel oil is improved, and usability of a gas turbine engine is improved.
Description
Technical field
The utility model relates to the gas-turbine unit field, especially, relates to a kind of twin-stage radial whirl device.
Background technology
Swirler is the vitals in the combustion chamber, and air-flow forms recirculating zone tissue burning, the retention flame behind swirler.The performance of swirler and chamber performance particularly ignition performance, extinguishment characteristics are closely bound up.Modern aero-engine adopts prismatic blade formula twin-stage radial whirl device more, and this kind swirler is simple in structure, the convenient installation, but the required number of blade of prismatic blade formula swirler is many, and swirl strength a little less than, it is poor to cause the atomizing effect of fuel oil.
The utility model content
The utility model purpose is to provide a kind of twin-stage radial whirl device, to improve the swirl strength of swirler, strengthens the swirler air-flow to the atomizing effect of fuel oil.
For achieving the above object, provide a kind of twin-stage radial whirl device according to the utility model, comprise one-level swirler and secondary vortices device with inner chamber, its one-level swirler comprises the first blade that a plurality of intervals arrange, and a plurality of the first blades in turn turn-knob form a circumference; The secondary vortices device comprises the second blade that a plurality of intervals arrange, and a plurality of the second blades in turn turn-knob form a circumference.
Further, a plurality of the first blades are evenly arranged in same disc; A plurality of the second blades are evenly arranged in same disc.
Further, the first blade and the second blade are the blade of circular arc.
Further, form first throat between adjacent two the first blades, first throat arranges in company with the first blade turn-knob.
Further, twin-stage radial whirl device also comprises fuel nozzle, pack into the inner chamber of described one-level swirler of described fuel nozzle.
Further, the inner chamber of one-level swirler is stairstepping, and the inner chamber of nozzle and one-level swirler forms the first cavity, and the first cavity all is communicated with first throat.
Further, form second throat between adjacent two the second blades, second throat arranges in company with the second blade turn-knob.
Further, twin-stage radial whirl device also comprises Venturi tube, and the inner chamber of described secondary vortices device is stairstepping, pack into the inner chamber of described secondary vortices device of described Venturi tube.
Further, the inner chamber of secondary vortices device is stairstepping, and the inner chamber of Venturi tube and secondary vortices device forms the second cavity, and the second cavity all is communicated with second throat.
Further, the end face of secondary vortices device is provided with seam, and the rim of described one-level swirler is provided with installed surface, the described installed surface described seam of packing into, and described twin-stage radial whirl device also comprises cover plate, described bridge welding is connected to the end face of described secondary vortices device.
The utlity model has following beneficial effect: twin-stage radial whirl device of the present utility model comprises the first blade and the second blade, gases at high pressure rotate into burner inner liner behind the second throat of the first throat of the first blade and the second blade, this structure can increase the swirl strength of swirler, thereby the atomizing effect when having increased gases at high pressure and fuel oil and mixing has improved the serviceability of gas-turbine unit.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.The below is described in further detail the utility model with reference to figure.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the assembling schematic diagram of the twin-stage radial whirl device of the utility model preferred embodiment;
Fig. 2 is the structural representation that the A-A of Fig. 1 of the utility model preferred embodiment analyses and observe; And
Fig. 3 is the structural representation that the B-B of Fig. 1 of the utility model preferred embodiment analyses and observe.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1, twin-stage radial whirl device of the present utility model, comprise one-level swirler 1 and secondary vortices device 2 with inner chamber, wherein, one-level swirler 1 comprises the first blade 10 that a plurality of intervals arrange, a plurality of the first blades 10 in turn turn-knob form a circumference, and preferably, a plurality of the first blades 10 are uniformly distributed in same circumference; Secondary vortices device 2 comprises the second blade 20 that a plurality of intervals arrange, and a plurality of the second blades 20 in turn turn-knob form a circumference, and preferably, a plurality of the second blades 20 are uniformly distributed in same circumference.Preferably, the first blade 10 and the second blade 20 are the blade of circular arc.
In conjunction with Fig. 2, form first throat 100 between adjacent two the first blades 10, first throat 100 is used for the charge flow rate of control gases at high pressure in company with the setting of the first blade 10 turn-knobs.The inner chamber of first throat 100 and one-level swirler 1 all is communicated with.
In conjunction with Fig. 3, form second throat 200 between adjacent two the second blades 20, second throat 200 is used for the charge flow rate of control gases at high pressure in company with the setting of the first blade 20 turn-knobs.The inner chamber of second throat 200 and secondary vortices device 2 all is communicated with.
Twin-stage radial whirl device of the present utility model also comprises fuel nozzle 3 and Venturi tube 4, Venturi tube 4 is the tubular structure of taper, preferably, Venturi tube 4 is provided with arc surface 40 near the inwall of path end face, the large footpath of arc surface 40 outwardly, fuel nozzle 3 ends produce carbon deposit when being used for avoiding burner inner liner work.The inner chamber of one-level swirler 1 is stairstepping, and fuel nozzle 3 is packed into by step-like inner chamber therewith in the one-level swirler 1, and at this moment, fuel nozzle 3 and this inner chamber form the first cavity, and the first cavity all is communicated with first throat 100.The inner chamber of secondary vortices device 2 also is stairstepping, pack into the inner chamber of secondary vortices device 2 of Venturi tube 4, and the path periphery of Venturi tube 4 cooperates with the inner chamber of secondary vortices device 2, the bigger diameter end face of Venturi tube 4 and the end face of secondary vortices device 2, at this moment, the inner chamber of Venturi tube 4 and secondary vortices device 2 forms the second cavity, and the second cavity all is communicated with second throat 200.
During installation, the inner chamber of one-level swirler 1 and secondary vortices device 2 is coaxial, at this moment, and the coaxial and positioned opposite in the large footpath of the jet hole of fuel nozzle 3 and Venturi tube 4, the first inner chamber communicates with the endoporus of Venturi tube 4, preferably, the rim of one-level swirler 1 is provided with installed surface 11, and the end face of secondary vortices device 2 is provided with seam 21, installed surface 11 is packed in the seam 21 and both matched in clearance, the convenient installation, particularly, seam 21 internal diameters are than the large 3mm ~ 6mm of installed surface 11 external diameters of one-level swirler 1.Twin-stage radial whirl device also comprises the cover plate 5 with endoporus, and cover plate 5 is welded on the end face of secondary vortices device 2, and less gap is arranged between one-level swirler 1 and the cover plate 5, and after the assembling, one-level swirler 1 can less displacement radially and circumferentially all occur along self axis.
During work, a part of gases at high pressure behind the first throat 100 between the first blade 10 rotation direction enter the first cavity, arrive in the burner inner liner through the inner chamber ejection to secondary vortices device 2 of the arc surface 40 of Venturi tube 4 and Venturi tube 4 again.Another part gases at high pressure behind the second throat 200 of the second blade 20 rotation direction enter the second cavity, the inner chamber ejection through secondary vortices device 2 arrives in the burner inner liner again.Fuel oil then sprays into through fuel nozzle 3, and impact on the arc surface 40 of Venturi tube 4 and form oil film, when arriving Venturi tube 4 exit, the mixing that crosses in the exit of Venturi tube 4 of fuel oil and two parts gases at high pressure.Preferably, in this preferred embodiment, the rotation direction of the first blade 10 and the second blade 20 is opposite, and then two strands of gases at high pressure form the opposite shearing force of air-flow in mixing place that crosses, and this shearing force can be tiny particle with fuel-oil atmozation, to satisfy the requirement of completing combustion.
Twin-stage radial whirl device of the present utility model comprises the first blade 10 and the second blade 20, gases at high pressure behind the second throat 200 of the first throat 100 of the first blade 10 and the second blade 20 rotation spray to burner inner liner, this structure has increased the swirl strength of swirler, thereby the atomizing effect when having increased gases at high pressure and fuel oil and mixing has improved the serviceability of gas-turbine unit.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. twin-stage radial whirl device, comprise one-level swirler (1) and secondary vortices device (2) with inner chamber, it is characterized in that, described one-level swirler (1) comprises the first blade (10) that a plurality of intervals arrange, and a plurality of described the first blades (10) in turn turn-knob form a circumference; Described secondary vortices device (2) comprises the second blade (20) that a plurality of intervals arrange, and a plurality of described the second blades (20) in turn turn-knob form a circumference.
2. twin-stage radial whirl device according to claim 1 is characterized in that, a plurality of described the first blades (10) are evenly arranged in same disc; A plurality of described the second blades (20) are evenly arranged in same disc.
3. twin-stage radial whirl device according to claim 1 is characterized in that, described the first blade (10) and described the second blade (20) are the blade of circular arc.
4. twin-stage radial whirl device according to claim 1 is characterized in that, forms first throat (100) between adjacent two described the first blades (10), and described first throat (100) is in company with described the first blade (10) turn-knob setting.
5. twin-stage radial whirl device according to claim 4 is characterized in that, described twin-stage radial whirl device also comprises fuel nozzle (3), pack into the inner chamber of described one-level swirler (1) of described fuel nozzle (3).
6. twin-stage radial whirl device according to claim 5, it is characterized in that, the inner chamber of described one-level swirler (1) is stairstepping, and described nozzle (3) forms the first cavity with the inner chamber of described one-level swirler (1), and described the first cavity all is communicated with described first throat (100).
7. twin-stage radial whirl device according to claim 1 is characterized in that, forms second throat (200) between adjacent two described the second blades (20), and described second throat (200) is in company with described the second blade (20) turn-knob setting.
8. twin-stage radial whirl device according to claim 7, it is characterized in that, described twin-stage radial whirl device also comprises Venturi tube (4), and the inner chamber of described secondary vortices device (2) is stairstepping, pack into the inner chamber of described secondary vortices device (2) of described Venturi tube (4).
9. twin-stage radial whirl device according to claim 8 is characterized in that, described Venturi tube (4) forms the second cavity with the inner chamber of described secondary vortices device (2), and described the second cavity all is communicated with described second throat (200).
10. twin-stage radial whirl device according to claim 9, it is characterized in that, the end face of described secondary vortices device (2) is provided with seam (21), the rim of described one-level swirler (1) is provided with installed surface (11), described installed surface (11) is packed in the described seam (21), described twin-stage radial whirl device also comprises cover plate (5), and described cover plate (5) is welded in the end face of described secondary vortices device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504901 CN202852880U (en) | 2012-09-28 | 2012-09-28 | Double-stage radial swirler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504901 CN202852880U (en) | 2012-09-28 | 2012-09-28 | Double-stage radial swirler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852880U true CN202852880U (en) | 2013-04-03 |
Family
ID=47984073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220504901 Expired - Lifetime CN202852880U (en) | 2012-09-28 | 2012-09-28 | Double-stage radial swirler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202852880U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844098A (en) * | 2018-05-15 | 2018-11-20 | 中国科学院工程热物理研究所 | A kind of head of combustion chamber based on volute structure |
| CN109519970A (en) * | 2018-11-12 | 2019-03-26 | 中国航发湖南动力机械研究所 | Twin-stage axial eddy device and the aeroengine combustor buring room for using it |
| CN109708148A (en) * | 2019-01-11 | 2019-05-03 | 东方电气集团东方汽轮机有限公司 | A kind of gas turbine burner twin-stage radial swirler |
| CN110081465A (en) * | 2019-05-08 | 2019-08-02 | 中国航发湖南动力机械研究所 | Swirler |
| CN111520750A (en) * | 2020-03-25 | 2020-08-11 | 西北工业大学 | Novel combustion chamber head oil injection structure |
| CN112050254A (en) * | 2020-09-18 | 2020-12-08 | 中国航发四川燃气涡轮研究院 | Flame tube head |
| CN112097260A (en) * | 2020-07-08 | 2020-12-18 | 成都航利航空科技有限责任公司 | Novel high-precision air swirler and manufacturing method thereof |
| CN115095933A (en) * | 2022-06-29 | 2022-09-23 | 江西镁淇实业有限公司 | Humidifying device for textile workshop |
-
2012
- 2012-09-28 CN CN 201220504901 patent/CN202852880U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844098A (en) * | 2018-05-15 | 2018-11-20 | 中国科学院工程热物理研究所 | A kind of head of combustion chamber based on volute structure |
| CN109519970A (en) * | 2018-11-12 | 2019-03-26 | 中国航发湖南动力机械研究所 | Twin-stage axial eddy device and the aeroengine combustor buring room for using it |
| CN109708148A (en) * | 2019-01-11 | 2019-05-03 | 东方电气集团东方汽轮机有限公司 | A kind of gas turbine burner twin-stage radial swirler |
| CN110081465A (en) * | 2019-05-08 | 2019-08-02 | 中国航发湖南动力机械研究所 | Swirler |
| CN111520750A (en) * | 2020-03-25 | 2020-08-11 | 西北工业大学 | Novel combustion chamber head oil injection structure |
| CN112097260A (en) * | 2020-07-08 | 2020-12-18 | 成都航利航空科技有限责任公司 | Novel high-precision air swirler and manufacturing method thereof |
| CN112097260B (en) * | 2020-07-08 | 2022-09-09 | 成都航利航空科技有限责任公司 | High-precision air swirler and manufacturing method thereof |
| CN112050254A (en) * | 2020-09-18 | 2020-12-08 | 中国航发四川燃气涡轮研究院 | Flame tube head |
| CN115095933A (en) * | 2022-06-29 | 2022-09-23 | 江西镁淇实业有限公司 | Humidifying device for textile workshop |
| CN115095933B (en) * | 2022-06-29 | 2023-09-01 | 江西镁淇实业有限公司 | Humidification device that weaving workshop was used |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202852880U (en) | Double-stage radial swirler | |
| JP6196868B2 (en) | Fuel nozzle and its assembly method | |
| JP6035021B2 (en) | Dual orifice fuel nozzle with improved fuel atomization | |
| CN103210257B (en) | Nozzle, gas turbine combustor and gas turbine | |
| WO2016104725A1 (en) | Burner, combustor, and gas turbine | |
| CN202253758U (en) | Air swirler | |
| US20080078183A1 (en) | Liquid fuel enhancement for natural gas swirl stabilized nozzle and method | |
| CN103017203B (en) | The fractional combustion chamber of a kind of main combustion stage loopful air inlet | |
| JP2012132672A (en) | Cooling flowpath dirt deflector in fuel nozzle | |
| CN104566470B (en) | The head of combustion chamber structure of distributed flame | |
| WO2013035474A1 (en) | Gas turbine combustor | |
| RU2662773C2 (en) | Preliminary film formation cartridge for the liquid fuel | |
| JP2009192214A (en) | Fuel nozzle for gas turbine engine and method for fabricating the same | |
| CN102901126B (en) | Combustion organizational structure | |
| JP2014077627A5 (en) | ||
| CN108592084B (en) | Low-emission combustion chamber head part adopting axial rotational flow prefilming plate matched blade injection structure for main combustion stage | |
| CN204717746U (en) | The head of combustion chamber structure of distributed flame | |
| JP2011226772A (en) | Coannular oil injection nozzle | |
| RU2578785C1 (en) | Double fuel atomiser "gas plus fuel oil" | |
| CN105737200B (en) | A kind of atomizer, nozzle array and burner | |
| CN109340819A (en) | A kind of venturi apparatus enhancing atomizing effect | |
| CN201697162U (en) | Carbon deposit prevention liquid fuel nozzle for gas turbine | |
| CN202852879U (en) | Twin-stage radial swirler | |
| CN102519056A (en) | Small-size precombustion chamber for engine | |
| CN205825113U (en) | The radial swirler of gas-turbine combustion chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |