CN115435336B - Flame stabilizer structure with adjustable blocking ratio - Google Patents
Flame stabilizer structure with adjustable blocking ratio Download PDFInfo
- Publication number
- CN115435336B CN115435336B CN202211061579.3A CN202211061579A CN115435336B CN 115435336 B CN115435336 B CN 115435336B CN 202211061579 A CN202211061579 A CN 202211061579A CN 115435336 B CN115435336 B CN 115435336B
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- CN
- China
- Prior art keywords
- flame stabilizer
- air
- adjustable
- cooled
- ratio
- 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.)
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 111
- 230000000903 blocking effect Effects 0.000 title claims abstract description 13
- 230000005489 elastic deformation Effects 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction 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
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 blocking ratio, which comprises: the air-cooled flame stabilizer is internally provided with a conical through hole space, and the air-cooled flame stabilizer can elastically deform to form a flame stabilizer structure with an adjustable blockage ratio. Because the cold flame stabilizer is of a structure with an adjustable blocking ratio, when the force is applied, the actuating ring is not slid to be positioned outside the air-cooled flame stabilizer which is close to the inner box, the actuating ring does not squeeze the outside of the air-cooled flame stabilizer to generate elastic deformation, and at the moment, the space slot width of the conical through hole in the air-cooled flame stabilizer is large; when no force is applied, the actuating ring is slidably positioned outside the air-cooled flame stabilizer far away from the connotation casing, the actuating ring extrudes the outside of the air-cooled flame stabilizer to generate elastic deformation, the space groove width of the conical through hole inside the air-cooled flame stabilizer is small, and the problem that the blocking ratio of the flame stabilizer is not adjustable is solved.
Description
Technical Field
The invention relates to a flame stabilizer structure with an adjustable blockage ratio, and belongs to the technical field of aeroengines.
Background
The flame stabilizer is a core component of the afterburner and functions to form a stable combustion flame by utilizing the bluff body recirculation zone to stabilize combustion of the afterburner. The prior art (such as a V-shaped cone flame stabilizer for a rotary engine with the Chinese patent publication No. CN101334174, disclosed technology is that the V-shaped cone 13 is a cone, the range of the apex angle 20 of the V-shaped cone 13 is between 30 degrees and 60 degrees, and the range of the blockage ratio is between 0.25 and 0.5) has the advantages that the groove width of the flame stabilizer is fixed and cannot be changed, the blockage ratio of the flame stabilizer is not adjustable, and the requirements that the groove width of the flame stabilizer is large when the afterburner works and the groove width of the flame stabilizer is narrow when the afterburner is not stressed and cut off are met.
Disclosure of Invention
In order to solve the technical problems, 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 blocking ratio, which comprises:
the air-cooled flame stabilizer is internally provided with a conical through hole space, and the air-cooled flame stabilizer can elastically deform to form a flame stabilizer structure with an adjustable blockage ratio.
The inner culvert casing is internally provided with the low-vortex blades, and the non-adjustable end part of the air-cooled flame stabilizer is fixed with the inner culvert casing.
The device also comprises an actuating ring arranged outside the adjustable end of the air-cooled flame stabilizer, the actuating ring slides to extrude the outside of the air-cooled flame stabilizer to generate elastic deformation, and the space width of the conical through hole in the air-cooled flame stabilizer is subjected to stepless adjustment, so that the air-cooled flame stabilizer forms a flame stabilizer structure with adjustable blocking ratio.
The device also comprises an actuator cylinder for driving the movable ring to slide, wherein the actuator cylinder is a telescopic 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 inner culvert casing.
The internal conical through hole space of the air-cooled flame stabilizer is provided with a second inner cavity, the second inner cavity is fixedly arranged in the air-cooled flame stabilizer through the supporting body, the second inner cavity is hollow to form a second inner cavity space, and the internal conical through hole space of the air-cooled flame stabilizer is a first inner cavity space.
The support body is provided with an air entraining pocket A.
The inner cone is fixed on the second inner cavity, and the inner cone seals and covers the port of the second inner cavity.
The adjustable blockage ratio flame stabilizer is characterized by further comprising an adjustable blockage ratio flame stabilizer, 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 arranged on the air-cooled flame stabilizer.
The adjustable blockage ratio flame stabilizer is provided with a bleed air pocket B.
The air-cooled flame stabilizer is characterized in that a rocker arm is hinged to the air-cooled flame stabilizer, a pull rod is hinged to the rocker arm, the pull rod is arranged on the 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 the 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 slot width of the conical through hole inside the air-cooled flame stabilizer is large; when no stress is applied, the actuating ring slides to be located outside the air-cooled flame stabilizer far away from the connotation casing, the actuating ring extrudes outside the air-cooled flame stabilizer to generate elastic deformation, the space groove width of the 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 situation that the groove width of the flame stabilizer is large when the afterburner works and the groove width of the flame stabilizer is narrow when the afterburner is not applied and cut off is avoided.
Drawings
FIG. 1 is a schematic view of the structure of the present invention when assembled;
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 point of the present invention;
in the figure: 1-connotation casing; 2-low vortex blades; 3-bushing A; 4-a pin A; 5-an actuator cylinder; 6-actuating the ring; 7-screws; 8-a locking plate A; 9-self-locking nuts; 10-bolts; 11-an air-cooled flame holder; 12-pin A; 13-a pull rod; 14-rocker arms; 15-pins B; 16-adjustable blockage ratio flame holder; 17-an inner cone; 18-locking plate B; 19-a screw; 20-bushing B; 21-pin B; 111-a second internal cavity; 112-a support; 113-bleed pocket a; 114-bleed pocket B; 51-mount.
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 above.
As shown in fig. 1 to 7.
A plug ratio adjustable flame holder structure of the present application, comprising:
the non-adjustable end part is in butt joint communication with the end part of the inner receiver 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 inside 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 and is in fixed butt joint communication with the end part of the inner receiver 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 outer part 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 subjected to stepless adjustment, so that the air-cooled flame stabilizer 11 forms a structure with an adjustable blocking ratio.
Because the air-cooled flame stabilizer 11 is of a structure with an adjustable blocking ratio, when the force is applied, the actuating ring 6 is not slid to be positioned outside the air-cooled flame stabilizer 11 close to the inner receiver 1, the actuating ring 6 does not squeeze the outside of the air-cooled flame stabilizer 11 to generate elastic deformation, and at the moment, the space slot width of the conical through hole inside the air-cooled flame stabilizer 11 is large; when the force is not applied, the actuating ring 6 slides to be positioned outside the air-cooled flame stabilizer 11 far away from the connotation casing 1, and the actuating ring 6 extrudes the outside of the air-cooled flame stabilizer 11 to generate elastic deformation, when the air-cooled flame stabilizer 11 is internally provided with a conical through hole with a small space groove width, the problem that the blocking ratio of the flame stabilizer is not adjustable is solved, the situation that the groove width of the flame stabilizer is large when the afterburner cannot work and the flame stabilizer groove width is narrow when the afterburner is not applied with force is avoided.
The telescopic device also comprises an actuating cylinder 5 for driving the actuating ring 6 to slide, wherein the actuating cylinder 5 is a telescopic body formed by adopting controllable telescopic pieces such as an electric telescopic rod or a pneumatic telescopic rod; one end of the actuator cylinder 5 is installed with the actuating ring 6 through the bushing A3 and the pin A4, the actuator cylinder 5 and the actuating ring 6 can be fixedly or rotatably hinged, the other end of the actuator cylinder 5 is installed with the inner culvert casing 1 through the bushing A3 and the pin A4, and the actuator cylinder 5 and the inner culvert casing 1 can be fixedly or rotatably hinged. The actuating cylinders 5 are a plurality of circumferentially spaced and arranged outside the air-cooled flame stabilizer 11, and two ends of the actuating cylinders are correspondingly arranged with the actuating ring 6 and the air-cooled flame inner box 1. The actuation ring 6 is driven to slide by the expansion and contraction of the actuator cylinder 5 to press the outside of the air-cooled flame stabilizer 11. The fixed end of the actuator cylinder 5 is installed with the inner receiver 1 through an installation seat 51, the installation seat 51 is welded with the inner receiver 1, and the actuator cylinder 5 stretches and the actuating ring 6 is installed.
The inner conical through hole space of the air-cooled flame stabilizer 11 is provided with a second inner cavity 111, the second inner cavity 111 is fixedly arranged in the air-cooled flame stabilizer 11 through a plurality of supporting bodies 112 which are arranged in an array at intervals, the second inner cavity 111 is internally provided with a second inner cavity space formed by hollow bodies, and the inner conical through hole space of the air-cooled flame stabilizer 11 is the first inner cavity space.
The support body 112 is provided with an air entraining pocket A113, and the air entraining pocket A113 reduces the wall temperature by introducing external low-temperature air, so that the infrared stealth function is realized.
And an inner cone 17 fixed on the second inner cavity 111 through a locking plate B18 and a screw 19, wherein the inner cone 17 seals and covers the port of the second inner cavity 111.
The adjustable blockage ratio flame stabilizer 16 is further included, one end of the adjustable blockage ratio flame stabilizer 16 is fixed on the inner cone 17 through a bushing B20 and a pin B21, the other end of the adjustable blockage ratio flame stabilizer 16 is installed on the air-cooled flame stabilizer 11, and the position where the supporting body 112 and the air-cooled flame stabilizer 11 are installed is the same as the position where the adjustable blockage ratio flame stabilizer 16 and the air-cooled flame stabilizer 11 are installed. The adjustable obstruction ratio flame holders 16 are mounted in a plurality of circumferentially arrayed, spaced apart relationship outside the inner cone 17.
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 external low-temperature air, so that the infrared stealth function is realized.
The part of the air-cooled flame stabilizer 11 mounted with the support 112 is hinged with a rocker arm 14 through a bushing B20 and a pin shaft B21, the rocker arm 14 is hinged with a pull rod 13 through a pin B15, the pull rod 13 is riveted or rotatably mounted with the actuating ring 6 through a pin A12, and the pull rod 13 and the rocker arm 14 provide auxiliary force for the actuating ring 6; the pull rod 13 and the rocker arm 14 are a plurality of circumferentially arrayed and spaced, and support the actuating ring 6 at multiple radial points.
When the telescopic end of the actuator cylinder 5 stretches by taking the figure 4 as a reference direction, the actuating ring 6 is pushed to move rightwards outside the air-cooled flame stabilizer 11 to drive the pull rod 13 and the rocker arm 14 to rotate clockwise, the adjustable blockage is higher than the elastic deformation of the flame stabilizer 16 and rotates clockwise along with the elastic deformation, 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 is contracted, 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 is reset elastically than the flame stabilizer 16 and rotates anticlockwise, the space groove width of the conical through hole inside the air-cooled flame stabilizer 11 is increased, and the blockage ratio is increased.
The adjustable blockage ratio flame holder 16 and support 112 have a plurality of apertures therein to facilitate the apertures to deliver a uniformly blended on-duty gas/oil mixture to the recirculation zone.
Claims (5)
1. A flame holder structure with an adjustable plug ratio, comprising:
the air-cooled flame stabilizer (11), the inside of the air-cooled flame stabilizer (11) is a conical through hole space, and the air-cooled flame stabilizer (11) can elastically deform to form a flame stabilizer structure with adjustable blocking ratio;
the air-cooled flame stabilizer also comprises an inner culvert casing (1) internally provided with the low-vortex blades (2), and the non-adjustable end part of the air-cooled flame stabilizer (11) is fixed with the inner culvert casing (1);
the device 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 the conical through hole in the air-cooled flame stabilizer (11) is subjected to stepless adjustment, so that the air-cooled flame stabilizer (11) forms a flame stabilizer structure with adjustable blockage ratio;
the device also comprises an actuator cylinder (5) for driving the movable ring (6) to slide, wherein the actuator cylinder (5) is a telescopic body; one end of the actuating cylinder (5) is arranged with the actuating ring (6), and the other end of the actuating cylinder (5) is arranged with the connotation case (1);
the adjustable blockage ratio flame stabilizer (16) is characterized by further comprising an adjustable blockage ratio flame stabilizer (16), one end of the adjustable blockage ratio flame stabilizer (16) is fixed on the inner cone (17), and the other end of the adjustable blockage ratio flame stabilizer (16) is arranged on the air-cooled flame stabilizer (11);
the air-cooled flame stabilizer is characterized in that a rocker arm (14) is hinged to the position of the air-cooled flame stabilizer (11), a pull rod (13) is hinged to the rocker arm (14), the pull rod (13) is arranged on the actuating ring (6), and the pull rod (13) and the rocker arm (14) provide auxiliary force for the actuating ring (6).
2. The plug ratio adjustable flame holder structure of claim 1, wherein: the internal conical through hole space of the air-cooled flame stabilizer (11) is provided with a second inner cavity (111), the second inner cavity (111) is fixedly arranged in the air-cooled flame stabilizer (11) through a supporting body (112), the second inner cavity (111) is internally provided with a hollow body to form a second inner cavity space, and the internal conical through hole space of the air-cooled flame stabilizer (11) is a first inner cavity space.
3. The plug ratio adjustable flame holder structure of claim 2, wherein: the support body (112) is provided with an air entraining pocket A (113).
4. The plug ratio adjustable flame holder structure of claim 2, wherein: the device also comprises an inner cone (17), wherein the inner cone (17) is fixed on the second inner cavity (111), and the port of the second inner cavity (111) is sealed and covered by the inner cone (17).
5. The plug ratio adjustable flame holder structure of claim 1, wherein: the adjustable blockage ratio flame stabilizer (16) is provided with a bleed pocket B (114).
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115435336A CN115435336A (en) | 2022-12-06 |
| CN115435336B true 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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| CN115435336A (en) | 2022-12-06 |
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