CN114413283B - Integrated structure of cyclone sleeve and head plate - Google Patents
Integrated structure of cyclone sleeve and head plate Download PDFInfo
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- CN114413283B CN114413283B CN202111630706.2A CN202111630706A CN114413283B CN 114413283 B CN114413283 B CN 114413283B CN 202111630706 A CN202111630706 A CN 202111630706A CN 114413283 B CN114413283 B CN 114413283B
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- plate
- flame tube
- cyclone
- sleeve
- cone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/38—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply comprising rotary fuel injection means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention discloses a cyclone sleeve and head plate integrated structure, which comprises a cone plate (6) and an arc plate (7), wherein a cyclone (2) is arranged at an opening at the front end of the cone plate (6), the arc plate (7) is respectively arranged at the upper part and the lower part of the rear end of the cone plate (6), the upper arc plate (7) is connected with the inner wall of an outer flame tube (4), and the lower arc plate (7) is connected with the inner wall of an inner flame tube (5). The invention has compact structure, realizes the integration of the functions of the sleeve and the head plate, and optimizes the corner reflux area; the integrated head plate can realize the purposes of reducing the weight of the combustion chamber and improving the performance of the combustion chamber.
Description
Technical Field
The invention belongs to the technical field of aero-engine combustion chambers, and relates to a cyclone sleeve and head plate integrated structure.
Background
Aircraft engine combustors typically include components such as swirlers, flame holders, and the like. Besides the cyclone body, the cyclone assembly is also provided with a horn-shaped sleeve structure at the outlet of the cyclone, and the cyclone assembly has the function of adjusting the size and the position of the reflux area. The flame tube component comprises a flame tube wall, a head plate, a cap cover, jet holes and the like, wherein the head plate mainly plays a role of connecting the inner flame tube wall and the outer flame tube wall and fixing the cyclone. In addition, a splash plate may be provided between the head plate and the sleeve, as desired for the combustion chamber design. A typical head plate, sleeve configuration is shown in fig. 1.
In typical sleeve and head plate structures, the head plate is used primarily to secure the swirler and the sleeve is used primarily to adjust the recirculation zone, which makes the structure of the flame tube head somewhat redundant and complex. For the structure shown in fig. 2, there are the following drawbacks: 1) The head plate and sleeve structure, while having obvious structural functions, obviously increases the weight of the combustion chamber. 2) Besides the air inlet of the cyclone, the head plate can also enter part of cooling air for cooling the head plate and the sleeve structure. With the sleeve and header plate structures of fig. 2 and 3, the cooling gas will have a reduced effect because the cooling gas must first flow through the header plate and then cool the sleeve after cooling the header plate. 3) The outer flame tube wall and the head plate form A, B two corners, the inner flame tube wall and the head plate form C, D two corners, and when air flows into the flame tube through the cyclone and the sleeve, obvious corner backflow areas are formed at the four corners. When the combustion chamber burns, the flame in the main combustion area and the flame in the corner backflow area are mutually influenced, so that the unstable combustion phenomenon is easy to occur, and the safety of the combustion chamber is influenced.
Disclosure of Invention
Object of the invention
The purpose of the invention is that: the utility model provides a swirler sleeve and head board integrated structure scheme organically combines swirler sleeve and head board as an organic whole through reasonable mode for this structure can bear head board, sleeve effect, can optimize the combustion chamber performance again, reduces the risk of burning oscillation, reaches swirler sleeve and head board integrated optimal design's purpose.
(II) technical scheme
In order to solve the technical problems, the invention provides a cyclone sleeve and head plate integrated structure, which comprises a cone plate 6 and an arc plate 7, wherein a cyclone 2 is arranged at an opening at the front end of the cone plate 6, the arc plate 7 is respectively arranged at the upper part and the lower part of the rear end of the cone plate 6, the upper arc plate 7 is connected with the inner wall of an outer flame tube 4, and the lower arc plate 7 is connected with the inner wall of an inner flame tube 5.
Wherein the cyclone 2 is arranged in the cap cavity of the cap 1.
Wherein the cone plate 6 is a cone.
Wherein, on the cone plate 6, concave arcs 9 are respectively arranged on the left side and the right side of the arc plate 7.
Wherein, the concave arc 9 is positioned on two periodic surfaces of the outer flame tube 4 and the inner flame tube 5.
Wherein, the arc plate 7 is positioned at the four corners of the left upper, left lower, right upper and right lower of the right end face of the cone plate 6 and is in smooth streamline butt joint with the cone plate 6.
Wherein, the cone plate 6 and the arc plate 7 are provided with cooling small holes 8 for cooling the integrated head plate 3.
Wherein, the cone plate 6 and the arc plate 7 are integrally formed.
The invention also provides a flame tube head structure which comprises a cap cover 1, a cyclone 2, an outer flame tube 4, an inner flame tube 5 and a cyclone sleeve and head plate integrated structure 3; the front end of the cap cover 1 is provided with an opening, the rear end of the cap cover is respectively connected with the outer flame tube 4 and the inner flame tube 5, an integrated structure 3 is arranged between the outer flame tube 4 and the inner flame tube 5, and the front end of the integrated structure 3 is provided with a cyclone 2; the cyclone 2 is open to the front end of the cap 1.
(III) beneficial effects
The cyclone sleeve and head plate integrated structure provided by the technical scheme is compact in structure, the sleeve and head plate functions are integrated, and the angle backflow area is optimized; the integrated head plate can realize the purposes of reducing the weight of the combustion chamber and improving the performance of the combustion chamber.
Drawings
FIG. 1 is a schematic view of the interior of a typical sleeve and head plate.
Fig. 2 is a cross-sectional view of the sleeve and head plate.
Fig. 3 is a view of the corner reflow zone position.
Fig. 4 is a schematic representation of a structure of a burner head.
Fig. 5 is a perspective view of a flame tube head structure.
Fig. 6 and 7 are front and left views of an integrated head plate.
Detailed Description
To make the objects, contents and advantages of the present invention more apparent, the following detailed description of the present invention will be given with reference to the accompanying drawings and examples.
As shown in fig. 4 and 5, the head of the flame tube comprises a cap cover 1, a cyclone 2, an outer flame tube 4, an inner flame tube 5, and a cyclone sleeve and head plate integrated structure 3 (hereinafter referred to as an integrated head plate 3); the front end of the cap cover 1 is provided with an opening, the rear part is respectively connected with the outer flame tube 4 and the inner flame tube 5, an integrated head plate 3 is arranged between the outer flame tube 4 and the inner flame tube 5, the front end of the integrated head plate 3 is provided with a cyclone 2, and the cyclone 2 is opposite to the opening at the front end of the cap cover 1.
The cyclone 2 is arranged in the cap cavity of the cap 1.
As shown in fig. 6 and 7, the integrated head plate 3 comprises a cone plate 6 and an arc plate 7, the cyclone 2 is installed at the opening of the front end of the cone plate 6, the arc plate 7 is respectively arranged at the upper part and the lower part of the rear end of the cone plate 6, the upper arc plate 7 is connected with the inner wall of the outer flame tube 4, and the lower arc plate 7 is connected with the inner wall of the inner flame tube 5.
The cone plate 6 is a cone, mainly plays a sleeve role, and can be used for adjusting the size, the position and the like of the reflux zone. On the cone plate 6, concave arcs 9 are respectively arranged on the left side and the right side of the arc plate 7. The concave arc 9 is positioned on two periodic surfaces of the outer flame tube 4 and the inner flame tube 5.
The arc plate 7 is positioned at the four corners of the left upper part, the left lower part, the right upper part and the right lower part of the right end surface of the cone plate 6 and is in smooth streamline butt joint with the cone plate 6.
The cone angle and the size of the cone plate 6 and the arc plate 7 can be properly adjusted according to the design requirement of the combustion chamber, and the size of the arc plate 7 can be correspondingly adjusted.
In addition, cooling apertures 8 are arranged on the integrated head plate 3 for cooling the integrated head plate 3.
The working principle of the integrated structure of the cyclone sleeve and the head plate is as follows:
1. air flows through the swirler 2 into the main combustion zone of the burner, and the size and position of the recirculation zone will be affected by the cone plate 6 to form in a specific area.
2. At the corners, the flow is restricted to form corner recirculation zones within the corner recirculation zones due to the presence of the arc plates 7.
3. The cooling holes 8 can sufficiently cover the integrated head plate 3, and the head intake air can sufficiently cool the integrated head plate 3.
4. On the two periodic surfaces, the integrated head plate 3 is concave, so that flame cross-over between the two heads is not affected.
As can be seen from the technical scheme, the invention has the following remarkable characteristics:
1. the cone plate 6 mainly plays a sleeve role and can be used for adjusting the size, the position and the like of the reflux zone. The cone angle, length and other dimensions of the cone plate are adjusted according to the design requirement of the combustion chamber.
2. The arc plate 7 is in smooth streamline butt joint with the cone plate 6, so that the swirling flow field is affected.
3. The arc plates 7 at the four corners need to effectively avoid the existence of corner reflow areas.
4. On the two periodic surfaces, the integrated head plate 3 is provided with a concave shape 9, and the flame linkage between the two heads cannot be influenced.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (10)
1. The utility model provides a swirler sleeve and head board integrated structure, its characterized in that, including cone board (6) and arc board (7), cone board (6) front end opening part installation swirler (2), cone board (6) rear end upper portion and lower part set up arc board (7) respectively, and outer flame tube (4) inner wall is connected in upper portion arc board (7), and inner flame tube (5) inner wall is connected in lower part arc board (7).
2. A swirler sleeve and head plate integrated structure as claimed in claim 1, characterized in that the swirler (2) is arranged in a cap cavity of a cap (1).
3. A swirler sleeve and head plate integrated structure as claimed in claim 2, characterized in that the cone plate (6) is a cone.
4. A cyclone sleeve and head plate integrated structure according to claim 3, wherein concave arcs (9) are respectively arranged on the left side and the right side of the cone plate (6) where the arc plate (7) is not arranged.
5. The cyclone sleeve and head plate integrated structure according to claim 4, wherein the concave arc (9) is positioned on two periodic surfaces of the outer flame tube (4) and the inner flame tube (5).
6. The integrated structure of the cyclone sleeve and the head plate according to claim 5, wherein the arc plate (7) is positioned at the four corners of the upper left, the lower left, the upper right and the lower right of the right end surface of the cone plate (6) and is in smooth streamline butt joint with the cone plate (6).
7. The cyclone sleeve and head plate integrated structure according to claim 6, characterized in that cooling holes (8) are arranged on the cone plate (6) and the arc plate (7) for integrated head plate cooling.
8. The cyclone sleeve and head plate integrated structure according to claim 7, wherein the cone plate (6) is integrally formed with the arc plate (7).
9. A flame tube head structure, characterized by comprising a cap (1), a cyclone (2), an outer flame tube (4), an inner flame tube (5), and a cyclone sleeve and head plate integrated structure (3) according to any one of claims 1-8; the front end of the cap cover (1) is provided with an opening, the rear end of the cap cover is respectively connected with the outer flame tube (4) and the inner flame tube (5), an integrated structure (3) is arranged between the outer flame tube (4) and the inner flame tube (5), and a cyclone (2) is arranged at the front end of the integrated structure (3).
10. A cartridge head structure according to claim 9, wherein the cyclone (2) is open towards the front end of the cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111630706.2A CN114413283B (en) | 2021-12-28 | 2021-12-28 | Integrated structure of cyclone sleeve and head plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111630706.2A CN114413283B (en) | 2021-12-28 | 2021-12-28 | Integrated structure of cyclone sleeve and head plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114413283A CN114413283A (en) | 2022-04-29 |
| CN114413283B true CN114413283B (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111630706.2A Active CN114413283B (en) | 2021-12-28 | 2021-12-28 | Integrated structure of cyclone sleeve and head plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN114413283B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0026594A1 (en) * | 1979-09-28 | 1981-04-08 | General Motors Corporation | Low emissions prevaporization type combustor assembly |
| CN212057380U (en) * | 2020-03-23 | 2020-12-01 | 上海电力大学 | Combustion chamber device of high-temperature backflow zone at scattered boss |
| CN113028451A (en) * | 2021-03-23 | 2021-06-25 | 中国科学院工程热物理研究所 | Centrifugal nozzle and swirler integrated combustion chamber head structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5380488B2 (en) * | 2011-05-20 | 2014-01-08 | 株式会社日立製作所 | Combustor |
| US20130255261A1 (en) * | 2012-03-30 | 2013-10-03 | General Electric Company | Swirler for combustion chambers |
| CN204730249U (en) * | 2015-03-18 | 2015-10-28 | 浙江大学 | A kind of swirl combustion chamber head construction being provided with perforating Venturi tube |
| CN104776451B (en) * | 2015-04-14 | 2017-11-21 | 中国科学院工程热物理研究所 | A kind of Multi-stage spiral combustion chamber with two-way backflow |
| CN106224955B (en) * | 2016-07-26 | 2018-05-22 | 中国科学院工程热物理研究所 | A kind of fractional combustion room that grade is surely fired using multi-point injection and improves combustion stability |
| CN109737450B (en) * | 2018-12-11 | 2019-12-03 | 北京航空航天大学 | Combustion chambers burn oscillation control device and combustion chambers burn oscillation control method |
| CN110131750B (en) * | 2019-04-26 | 2020-08-11 | 沈阳航空航天大学 | Gas turbine low-emission combustion chamber using gas fuel |
| CN111207414A (en) * | 2020-01-17 | 2020-05-29 | 西北工业大学 | Strong rotational flow centrifugal reflux type nozzle |
-
2021
- 2021-12-28 CN CN202111630706.2A patent/CN114413283B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0026594A1 (en) * | 1979-09-28 | 1981-04-08 | General Motors Corporation | Low emissions prevaporization type combustor assembly |
| CN212057380U (en) * | 2020-03-23 | 2020-12-01 | 上海电力大学 | Combustion chamber device of high-temperature backflow zone at scattered boss |
| CN113028451A (en) * | 2021-03-23 | 2021-06-25 | 中国科学院工程热物理研究所 | Centrifugal nozzle and swirler integrated combustion chamber head structure |
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| Publication number | Publication date |
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| CN114413283A (en) | 2022-04-29 |
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