CN115435336A - Flame stabilizer structure with adjustable blocking ratio - Google Patents
Flame stabilizer structure with adjustable blocking ratio Download PDFInfo
- Publication number
- CN115435336A CN115435336A CN202211061579.3A CN202211061579A CN115435336A CN 115435336 A CN115435336 A CN 115435336A CN 202211061579 A CN202211061579 A CN 202211061579A CN 115435336 A CN115435336 A CN 115435336A
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- CN
- China
- Prior art keywords
- flame stabilizer
- adjustable
- air
- flame
- cooled
- 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.)
- Granted
Links
- 239000003381 stabilizer Substances 0.000 title claims abstract description 114
- 230000000903 blocking effect Effects 0.000 title claims abstract description 17
- 230000005489 elastic deformation Effects 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- F23R3/283—Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances
Abstract
The invention discloses a flame stabilizer structure with adjustable blockage ratio, which comprises: the air-cooled flame stabilizer is internally provided with a conical through hole space, and the air-cooled flame stabilizer can be elastically deformed to form a flame stabilizer structure with an adjustable blocking ratio. Because the cold flame stabilizer is of a flame stabilizer structure with an adjustable blocking ratio, when a force is applied, the actuating ring is not slidably positioned outside the air-cooled flame stabilizer close to the inner culvert casing, the actuating ring does not extrude the outside of the air-cooled flame stabilizer and does not generate elastic deformation, and at the moment, the space groove of the conical through hole in the air-cooled flame stabilizer is wide; when no force is applied, the actuating ring slides to be positioned outside the air-cooled flame stabilizer far away from the culvert casing, the actuating ring extrudes the outside of the air-cooled flame stabilizer to generate elastic deformation, the space groove width of the tapered through hole in the air-cooled flame stabilizer is small, and the problem that the blockage ratio of the flame stabilizer is not adjustable is solved.
Description
Technical Field
The invention relates to a flame stabilizer structure with an adjustable blocking ratio, and belongs to the technical field of aero-engines.
Background
The flame stabilizer is a core component of the afterburner, and the flame stabilizer has the function of forming stable combustion flame by utilizing the bluff body backflow area so as to ensure that the afterburner can stably burn. In the prior art (for example, the V-shaped cone flame stabilizer for a rotor engine with Chinese patent publication No. CN101334174, the disclosed technology is that a V-shaped cone 13 is in a conical shape, the vertex angle 20 of the V-shaped cone 13 ranges from 30 degrees to 60 degrees, and the blockage ratio ranges from 0.25 to 0.5), the groove width of the flame stabilizer is fixed and cannot be changed, and the blockage ratio of the flame stabilizer cannot be adjusted, so that the requirements of large flame stabilizer groove width during the work of an afterburner and narrow flame stabilizer groove width during non-afterburner cutting cannot be met.
Disclosure of Invention
In order to solve the technical problem, the invention provides a flame stabilizer structure with an adjustable blocking ratio.
The invention is realized by the following technical scheme.
The invention provides a flame stabilizer structure with adjustable blockage ratio, which comprises:
the air-cooled flame stabilizer is internally provided with a conical through hole space, and the air-cooled flame stabilizer can be elastically deformed to form a flame stabilizer structure with an adjustable blocking ratio.
The air-cooled flame stabilizer also comprises a culvert casing internally provided with low vortex blades, and the non-adjustable end part of the air-cooled flame stabilizer is fixed with the culvert casing.
The gas-cooled flame stabilizer also comprises an actuating ring arranged outside the adjustable end of the gas-cooled flame stabilizer, the actuating ring slides to extrude the outside of the gas-cooled flame stabilizer to generate elastic deformation, and the space width of a conical through hole in the gas-cooled flame stabilizer is subjected to stepless adjustment, so that the gas-cooled flame stabilizer forms a flame stabilizer structure with adjustable blocking ratio.
The actuating cylinder drives the actuating ring to slide, and the actuating cylinder is an extensible body; one end of the actuating cylinder is installed with the actuating ring, and the other end of the actuating cylinder is installed with the culvert casing.
The inside toper through-hole space of cold flame stabilizer has the interior cavity of second, and the cavity is through supporter fixed mounting in the cold flame stabilizer in the second, the internal portion of second forms second inner chamber space for the ducted body, and the inside toper through-hole space of cold flame stabilizer is first inner chamber space.
The support body is provided with a gas-guiding pocket A.
The inner cone is fixed on the second inner cavity and covers the port of the second inner cavity in a sealing mode.
The adjustable blockage ratio flame stabilizer is characterized by further comprising an adjustable blockage ratio flame stabilizer, wherein one end of the adjustable blockage ratio flame stabilizer is fixed on the inner cone, and the other end of the adjustable blockage ratio flame stabilizer is installed on the cold flame stabilizer.
The flame stabilizer with the adjustable blocking ratio is provided with a gas guide pocket B.
The cold flame stabilizer part is hinged with a rocker arm, the rocker arm is hinged with a pull rod, the pull rod is mounted with an actuating ring, and the pull rod and the rocker arm provide auxiliary force for the actuating ring.
The invention has the beneficial effects that: when stress is applied, the actuating ring is not positioned outside the air-cooled flame stabilizer close to the inwards contained casing in a sliding manner, the actuating ring does not extrude the outside of the air-cooled flame stabilizer and does not generate elastic deformation, and at the moment, the space groove of the conical through hole in the air-cooled flame stabilizer is wide; when the boosting combustor does not apply force, the actuating ring slides to be located outside the air-cooled flame stabilizer far away from the culvert casing, the actuating ring extrudes the outside of the air-cooled flame stabilizer to generate elastic deformation, the width of a space groove of a conical through hole in the air-cooled flame stabilizer is small, the problem that the blocking ratio of the flame stabilizer is not adjustable is solved, and the situations that the width of the flame stabilizer groove is large when the boosting combustor works and the width of the flame stabilizer groove is narrow when the boosting combustor is not cut off are avoided.
Drawings
FIG. 1 is a schematic view of the present invention in its assembled configuration;
FIG. 2 is a schematic view of the assembled structure of the present invention;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 3;
FIG. 5 is a front view of the symmetrical half of FIG. 2;
FIG. 6 is an enlarged schematic view at A in FIG. 5;
FIG. 7 is an enlarged schematic view of the inner cone mounting location of the present invention;
in the figure: 1-a culvert casing; 2-low swirl vanes; 3-a lining A; 4-pin shaft A; 5-an actuator cylinder; 6-actuating ring; 7-a screw; 8-locking plate A; 9-self-locking nut; 10-bolt; 11-gas cooled flame stabilizer; 12-pin A; 13-a pull rod; 14-a rocker arm; 15-pin B; 16-adjustable blockage ratio flame stabilizer; 17-an inner cone; 18-locking tab B; 19-a screw; 20-liner B; 21-pin B; 111-a second inner cavity; 112-a support; 113-an air entraining pocket A; 114-bleed air pocket B; 51-mounting seat.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in figures 1 to 7 of the drawings.
The application provides a jam than adjustable flame holder structure includes:
the non-adjustable end part of the air-cooled flame stabilizer 11 is in butt joint communication with the end part of the culvert casing 1 provided with the low vortex blade 2 through a screw 7, a locking plate A8, a self-locking nut 9 and a bolt 10, the interior of the air-cooled flame stabilizer 11 is a conical through hole space, the air-cooled flame stabilizer 11 is an integral whole, and the air-cooled flame stabilizer 11 is provided with a flange joint which is in fixed butt joint communication with the end part of the culvert casing 1 provided with the low vortex blade 2 through the screw 7, the locking plate A8, the self-locking nut 9 and the bolt 10;
the actuating ring 6 is arranged outside the adjustable end of the air-cooled flame stabilizer 11, the actuating ring 6 slides to extrude the outside of the air-cooled flame stabilizer 11 to generate elastic deformation, and the space width of the conical through hole in the air-cooled flame stabilizer 11 is adjusted in a stepless manner, so that the air-cooled flame stabilizer 11 forms a flame stabilizer structure with adjustable blocking ratio.
Because the cold flame stabilizer 11 is a flame stabilizer structure with an adjustable blocking ratio, when the force is applied, the actuating ring 6 is not positioned outside the air-cooled flame stabilizer 11 close to the culvert casing 1 in a sliding manner, the actuating ring 6 does not extrude the outside of the air-cooled flame stabilizer 11 and does not generate elastic deformation, and at the moment, the space groove of the conical through hole in the air-cooled flame stabilizer 11 is wide; when the stress application is not carried out, the actuating ring 6 is located outside the air-cooled flame stabilizer 11 far away from the culvert casing 1 in a sliding mode, the actuating ring 6 extrudes the outside of the air-cooled flame stabilizer 11 to generate elastic deformation, and when the stress application is carried out, the width of a space groove of a conical through hole in the air-cooled flame stabilizer 11 is small, so that the problem that the blocking ratio of the flame stabilizer is not adjustable is solved, and the situations that the width of a groove of the flame stabilizer is large when a stress application combustion chamber works and the width of the groove of the flame stabilizer is narrow when the stress application is not cut off are avoided.
The actuating cylinder 5 is a telescopic body formed by controllable telescopic parts such as an electric telescopic rod or a pneumatic telescopic rod and the like; one end of the actuating cylinder 5 is installed with the actuating ring 6 through the bushing A3 and the pin shaft A4, the actuating cylinder 5 and the actuating ring 6 can be fixedly or rotatably hinged, the other end of the actuating cylinder 5 is installed with the culvert casing 1 through the bushing A3 and the pin shaft A4, and the actuating cylinder 5 and the gas culvert casing 1 can be fixedly or rotatably hinged. The actuating cylinders 5 are arranged outside the cold flame stabilizer 11 at intervals on the circumference, and two ends of the actuating cylinders are correspondingly arranged with the actuating rings 6 and the air-cooled flame culvert casing 1. The actuator ring 6 is driven to slide by expansion and contraction of the actuator cylinder 5, and presses the outside of the air-cooled flame holder 11. The fixed end of the actuating cylinder 5 is installed with the content casing 1 through the installation base 51, the installation base 51 is installed with the content casing 1 in a welding mode, and the expansion and contraction of the actuating cylinder 5 are installed with the actuating ring 6.
The inside toper through-hole space of cold flame holder 11 has second inner chamber 111, and second inner chamber 111 is through a plurality of circumference interval permutation support 112 fixed mounting respectively in cold flame holder 11, the inside second inner chamber space that forms for the ducted body of second inner chamber 111, the inside toper through-hole space of cold flame holder 11 is first inner chamber space.
The support body 112 is provided with a gas guide pocket A113, and the gas guide pocket A113 reduces the wall temperature by introducing low-temperature air in an external culvert, so that the infrared stealth function is realized.
The inner cone 17 is fixed on the second inner cavity 111 through a locking plate B18 and a screw 19, and the end of the second inner cavity 111 is sealed and covered by the inner cone 17.
The adjustable blockage ratio flame stabilizer device further comprises an adjustable blockage ratio flame stabilizer 16, one end of the adjustable blockage ratio flame stabilizer 16 is fixed on the inner cone 17 through a bush B20 and a pin B21, the other end of the adjustable blockage ratio flame stabilizer 16 is installed on the cold flame stabilizer 11, and the installation position of the support body 112 and the cold flame stabilizer 11 is the same as the installation position of the adjustable blockage ratio flame stabilizer 16 and the cold flame stabilizer 11. The adjustable blockage ratio flame stabilizers 16 are installed at intervals in a circumferential array and distributed on the outer portion of the inner cone 17 in a plurality mode.
The adjustable blockage ratio flame stabilizer 16 is provided with a bleed air pocket B114, and the bleed air pocket B114 reduces the wall temperature by introducing outer culvert low-temperature air, so that the infrared stealth function is realized.
The part of the cold flame stabilizer 11 installed with the supporting body 112 is hinged with a rocker arm 14 through a bush B20 and a pin B21, the rocker arm 14 is hinged with a pull rod 13 through a pin B15, the pull rod 13 is riveted with the actuating ring 6 or can be rotatably installed through a pin A12, and the pull rod 13 and the rocker arm 14 provide auxiliary force for the actuating ring 6; the pull rods 13 and the rocker arms 14 are arranged in a circumferential array at intervals and support the actuating ring 6 at multiple radial points.
With reference to fig. 4, when the telescopic end of the actuator cylinder 5 extends, the actuator ring 6 is pushed to move right outside the air-cooled flame stabilizer 11 to drive the pull rod 13 and the rocker 14 to rotate clockwise, the adjustable blockage ratio of the flame stabilizer 16 generates elastic deformation and then rotates clockwise, the space slot width of the conical through hole inside the air-cooled flame stabilizer 11 is reduced, and the blockage ratio is reduced; when the telescopic end of the actuating cylinder 5 contracts, the actuating ring 6 is pulled to move leftwards outside the air-cooled flame stabilizer 11 to drive the pull rod 13 and the rocker arm 14 to rotate anticlockwise, the adjustable blockage ratio elastically resets the flame stabilizer 16 and then rotates anticlockwise, the space groove width of the conical through hole in the air-cooled flame stabilizer 11 is increased, and the blockage ratio is increased.
The adjustable blockage ratio flame stabilizer 16 and the support body 112 are provided with a plurality of small holes, so that the small holes can conveniently send the uniformly mixed oil-gas mixture on duty into a backflow area.
Claims (10)
1. An adjustable blockage ratio flame holder structure, comprising:
the air-cooled flame stabilizer (11) is characterized in that the air-cooled flame stabilizer (11) is internally provided with a conical through hole space, and the air-cooled flame stabilizer (11) can be elastically deformed to form a flame stabilizer structure with an adjustable blocking ratio.
2. The adjustable blockage ratio flame holder structure of claim 1 wherein: the air-cooled flame stabilizer further comprises a culvert casing (1) internally provided with low vortex blades (2), and the non-adjustable end part of the air-cooled flame stabilizer (11) is fixed with the culvert casing (1).
3. The plug ratio adjustable flame holder structure of claim 1 or 2, wherein: the flame stabilizer structure also comprises an actuating ring (6) arranged outside the adjustable end of the air-cooled flame stabilizer (11), wherein the actuating ring (6) slides to extrude the outside of the air-cooled flame stabilizer (11) to generate elastic deformation, and the space width of a conical through hole in the air-cooled flame stabilizer (11) is adjusted steplessly, so that the air-cooled flame stabilizer (11) forms a flame stabilizer structure with an adjustable plugging ratio.
4. The adjustable blockage ratio flame holder structure of claim 3 wherein: the actuating cylinder (5) is used for driving the actuating ring (6) to slide, and the actuating cylinder (5) is a telescopic body; one end of the actuating cylinder (5) is installed with the actuating ring (6), and the other end of the actuating cylinder (5) is installed with the culvert casing (1).
5. The adjustable blockage ratio flame holder structure of claim 4 wherein: the inside toper through-hole space of cold flame holder (11) has interior cavity of second (111), and cavity of second (111) is in cold flame holder (11) through supporter (112) fixed mounting, cavity of second (111) inside forms second inner chamber space for the ducted body, and the inside toper through-hole space of cold flame holder (11) is first inner chamber space.
6. The adjustable blockage ratio flame holder structure of claim 5 wherein: the support body (112) is provided with a bleed air pocket A (113).
7. The adjustable blockage ratio flame holder structure of claim 5 wherein: the inner cavity sealing device further comprises an inner cone (17), the inner cone (17) is fixed on the second inner cavity (111), and the end opening of the second inner cavity (111) is sealed and covered by the inner cone (17).
8. The adjustable blockage ratio flame holder structure according to claim 7 wherein: the flame stabilizer also comprises a flame stabilizer (16) with an adjustable blocking ratio, one end of the flame stabilizer (16) with the adjustable blocking ratio is fixed on the inner cone (17), and the other end of the flame stabilizer (16) with the adjustable blocking ratio is arranged on the cold flame stabilizer (11).
9. The adjustable blockage ratio flame holder structure of claim 8 wherein: the adjustable choke ratio flame holder (16) is provided with a bleed air pocket B (114).
10. The adjustable blockage ratio flame holder structure of claim 3 wherein: the cold flame stabilizer (11) is hinged with a rocker (14), the rocker (14) is hinged with a pull rod (13), the pull rod (13) is mounted with the actuating ring (6), and the pull rod (13) and the rocker (14) provide auxiliary force for the actuating ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211061579.3A CN115435336B (en) | 2022-09-01 | 2022-09-01 | Flame stabilizer structure with adjustable blocking ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211061579.3A CN115435336B (en) | 2022-09-01 | 2022-09-01 | Flame stabilizer structure with adjustable blocking ratio |
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| Publication Number | Publication Date |
|---|---|
| CN115435336A true CN115435336A (en) | 2022-12-06 |
| CN115435336B CN115435336B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211061579.3A Active CN115435336B (en) | 2022-09-01 | 2022-09-01 | Flame stabilizer structure with adjustable blocking ratio |
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| CN115435336B (en) | 2024-04-09 |
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