CN109611887B - Combustion device - Google Patents
Combustion device Download PDFInfo
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- CN109611887B CN109611887B CN201811294355.0A CN201811294355A CN109611887B CN 109611887 B CN109611887 B CN 109611887B CN 201811294355 A CN201811294355 A CN 201811294355A CN 109611887 B CN109611887 B CN 109611887B
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- cylinder
- flame stabilizer
- flame
- long groove
- fixed
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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
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/16—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
- F23R3/18—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants
- F23R3/20—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants incorporating 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)
- Control Of Combustion (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
The utility model belongs to aircraft design field, in particular to burner to solve prior art and can not satisfy the problem of the anti high temperature rise rate of power supply change's test demand. The device comprises a combustible gas spray rod, a flame stabilizer, an ignition electric nozzle and a cylinder. The cylinder comprises an air inlet end and an air outlet end which are positioned at two axial ends of the cylinder, and the wall of the cylinder is provided with at least 2 groups of first mounting holes; the flame stabilizer is of a long groove structure with a V-shaped section, one end of the flame stabilizer is fixed in the first mounting hole, the other end of the flame stabilizer extends into the cavity of the cylinder, and the flame stabilizer is inclined towards the air outlet end of the cylinder; the side wall of the combustible gas spray rod is provided with a plurality of nozzles, and the combustible gas spray rod is matched with the flame stabilizer in length and fixed in the long groove structural space of the flame stabilizer; one end of the ignition electric nozzle penetrates through the cylinder and extends into the long groove structure space of the flame stabilizer. The temperature in the air flue can be adjusted, and cost is reduced.
Description
Technical Field
The application belongs to the field of aircraft design, in particular to a combustion device.
Background
When the aircraft takes off, the phenomenon of temperature distortion sometimes occurs due to the fact that high-temperature airflow or water vapor is sucked in and tail flames generated by weapons are sucked in operation, when the temperature distortion exceeds the bearing capacity of a power source, the stability margin of the power source is reduced, flight safety is seriously affected, and therefore during research and development, experimental research on high-temperature rise rate change resistance of the power source needs to be carried out in advance.
The conventional mode is that high-temperature steam sprayed out of a high-temperature steam device at an inlet of a power source air inlet channel is mixed with low-temperature air in the air inlet channel and then is sucked by a power source, the generated temperature rise rate and temperature rise are relatively low, and whether the stability requirement is met or not under a specific environment can only be checked; for the realization method of high temperature rise and temperature rise rate, high-temperature steam is directly sprayed into an inlet of the air inlet, but the high-temperature steam is limited, the temperature of the steam is about 500 ℃, and the high-temperature rise and temperature rise rate required by the product with complex requirements on temperature rise change of a working medium is difficult to meet; the direct steam suction mode equipment occupies a large area, the energy consumption is large, and the cost investment is increased by 20-30%.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The utility model aims at providing a combustion apparatus to solve the problem that current temperature generating device can not satisfy the anti high temperature rise rate of power supply change's experimental demand.
The technical scheme of the application is as follows:
a combustion apparatus, comprising:
the cylinder comprises an air inlet end and an air outlet end which are positioned at two axial ends of the cylinder, at least 2 groups of first mounting holes are arranged on the cylinder wall of the cylinder, each group of first mounting holes are uniformly arranged along the circumferential direction of the cylinder wall of the cylinder, the plane where the circle center of each group of first mounting holes is located is perpendicular to the central axis of the cylinder, and two adjacent groups of first mounting holes are distributed at intervals in the circumferential direction;
the flame stabilizer is of a long groove structure with a V-shaped section, one end of the flame stabilizer is fixed in the first mounting hole, the other end of the flame stabilizer extends into the cavity of the cylinder, the flame stabilizer is inclined towards the air outlet end of the cylinder, and the opening of the long groove structure of the flame stabilizer faces the air outlet end of the cylinder; wherein the length of the flame holder mounted on the group of first mounting holes close to the gas outlet end is smaller than the length of the flame holder mounted on the group of first mounting holes far away from the gas outlet end;
the side wall of the combustible gas spray rod is provided with a plurality of nozzles, the combustible gas spray rod is matched with the flame stabilizer in length and is fixed in the long groove structure space of the flame stabilizer, one end of the combustible gas spray rod extends out of the cylinder wall of the cylinder and is connected with an external air supply pipe, and the nozzles face to the opening of the long groove structure of the flame stabilizer;
and one end of the ignition electric nozzle penetrates through the cylinder and extends into the long groove structure space of the flame stabilizer.
Optionally, the angle between the flame holder and the axis of the cylinder is 60 degrees.
Optionally, a fixing plate for fixing the combustible gas spray rod is arranged in the long groove structure of the flame holder.
Optionally, the first mounting hole is circular, a circular mounting seat is arranged at one end of the flame holder close to the first mounting hole, and the flame holder is fixed in the first mounting hole through the mounting seat.
Optionally, a fixing flange is arranged on the mounting seat, an ignition hole is formed in the fixing flange, a flange cover matched with the fixing flange is installed at one end, close to the first mounting hole, of the combustible gas spray rod, the combustible gas spray rod penetrates through the ignition hole of the fixing flange and is fixed in a long groove structural space of the flame stabilizer, and the flange cover is fixed on the fixing flange through bolts.
Optionally, the mounting seat is provided with a second mounting hole, and the ignition nozzle is mounted in the second mounting hole.
Optionally, the method further comprises:
a fixing lug is arranged on the surface of the flame stabilizer, which is back to the air outlet end of the cylinder;
the adjustable pull rod comprises a first adjustable pull rod and a second adjustable pull rod, wherein two ends of the first adjustable pull rod are respectively connected to two circumferentially adjacent flame stabilizers far away from the air outlet end, and two ends of the second adjustable pull rod are respectively connected to flame stabilizers far away from the air outlet end and flame stabilizers close to the air outlet end.
Optionally, the method further comprises:
the supporting frame is a circular frame body, is positioned in the inner cavity of the cylinder, and is fixedly connected with one end, far away from the air outlet end, of the flame stabilizer positioned in the cavity of the cylinder.
Optionally, the method further comprises:
and the flame detector is arranged on the wall of the cylinder.
Optionally, the side walls at the two ends of the cylinder are provided with annular edges, a plurality of fixing holes are uniformly formed in the circumferential direction of the annular edges, and the cylinder is fixed through the annular edges in a matched manner through bolts.
The application has at least the following beneficial technical effects:
the flame stabilizer with the long groove structure with the V-shaped cross section is arranged on the circumference of the cylinder, and the combustible gas spray rod is arranged in the flame stabilizer, so that the temperature in the air passage is adjusted, and the cost is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the combustion apparatus of the present application;
FIG. 2 is a cross-sectional view of the combustion apparatus of the present application;
FIG. 3 is a schematic view of the cylindrical structure of the combustion apparatus of the present application;
FIG. 4 is a schematic view of the internal structure of the combustion apparatus of the present application;
FIG. 5 is an enlarged schematic view of the internal structure of the combustion apparatus of the present application;
FIG. 6 is a schematic view of a flame holder configuration of a combustion apparatus of the present application;
FIG. 7 is a cross-sectional view of a flame holder of the subject combustion apparatus;
wherein:
1-a combustible gas spray boom; 11-a nozzle; 12-a flange cover; 2-mounting a base; 21-ignition hole, 22-fixed flange; 23-a second mounting hole; 3-ignition electric nozzle; 4-a flame stabilizer; 41-fixing plate; 42-securing the tab; 5-a flame detector; 6-a circular rim; 7-bolt; 8-a support frame; 9-an adjustable pull rod; 91-a first adjustable tension bar; 92-a second adjustable tension bar; 10-cylinder; 101-first mounting hole.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 7.
The combustion device comprises a combustible gas spray rod 1, a flame stabilizer 4, an ignition electric nozzle 3 and a cylinder 10.
Specifically, the method comprises the following steps:
the cylinder 10 comprises an air inlet end and an air outlet end which are located at two axial ends of the cylinder, at least 2 groups of first mounting holes 101 are arranged on the wall of the cylinder 10, the number of each group of first mounting holes 101 is set to be 6 or 8, each group of first mounting holes 101 are uniformly arranged along the circumferential direction of the wall of the cylinder 10, the plane where the circle center of each group of first mounting holes 101 is located is perpendicular to the central axis of the cylinder 10, two adjacent groups of first mounting holes 101 are distributed at intervals in the circumferential direction, and the axial distance between the two adjacent groups of first mounting holes 101 is smaller than 1/10 of the diameter of the cylinder 10, namely the axial distance between the two adjacent groups of first mounting holes 101 cannot be too large.
In this embodiment, two adjacent sets of the first mounting holes 101 are circumferentially spaced from each other, and the first mounting hole 101 of one set is located at a circumferential middle position of two adjacent first mounting holes 101 of the other set of the first mounting holes 101, so that the layout mode can ensure that the temperature field in the cylinder 10 is uniform.
The flame stabilizer 4 is a long groove structure with a V-shaped cross section, one end of the long groove structure is fixed in the first mounting hole 101, one end of the flame stabilizer 4 close to the first mounting hole 101 is provided with a circular mounting seat 2, the flame stabilizer 4 is fixed in the first mounting hole 101 through the mounting seat 2, the other end of the long groove structure extends into the cavity of the cylinder 10, an opening of the long groove structure of the flame stabilizer 4 faces the air outlet end of the cylinder 10 and inclines towards the air outlet end of the cylinder 10, and in this embodiment, an angle between the flame stabilizer 4 and the axis of the cylinder 10 is 60 degrees.
And, the length of the flame holder 4 mounted on the set of first mounting holes 101 near the gas outlet end is smaller than the length of the flame holder 4 mounted on the set of first mounting holes 101 far from the gas outlet end.
The side wall of the combustible gas spray rod 1 is provided with a plurality of nozzles 11, the combustible gas spray rod 1 is matched with the flame stabilizers 4 in length, one end of the combustible gas spray rod extends out of the cylinder wall of the cylinder 10 to be connected with an external air supply pipe, the switching state of each flame stabilizer 4 can be set to be independently controlled, the requirement of complex temperature rise rate change is met, and the nozzles 11 face the long groove structure opening of the flame stabilizers 4; the length of each group of combustible gas spray rods 1 or the number of the spray nozzles 11 on the spray rods is changed, the requirement for changing the radial temperature in the air inlet channel can be met, and the uniformity of the radial temperature in the channel can be enhanced by increasing the number of the spray nozzles 11 from the outer wall of the cylinder 10 to the center of the combustible gas spray rods 1 on the combustible gas spray rods 1.
Further, an ignition hole 21, a fixing flange 22 and a second mounting hole 23 are formed in the mounting base 2, a flange cover 12 matched with the fixing flange 22 is installed at one end, close to the first mounting hole 101, of the combustible gas spray rod 1, the combustible gas spray rod 1 penetrates through the fixing flange 22 to be fixed in a long groove structural space of the flame stabilizer 4, and the flange cover 12 is fixed on the fixing flange 22 through bolts and is convenient to replace.
The ignition electric nozzle 3 is arranged in a second mounting hole 23 of the mounting base 2, one end of the ignition electric nozzle extends into the inner cavity of the cylinder 10, and the port is positioned in the long groove structure space of the flame stabilizer 4.
Further, a fixing plate 41 for fixing the combustible gas spray rod 1 is arranged in the long groove structure of the flame stabilizer 4 and used for fixing the combustible gas spray rod 1, and the number of the fixing plates 41 is determined according to the length of the combustible gas spray rod 1.
Further, the burner of this application still includes adjustable pull rod 9, adjustable pull rod 9 includes first adjustable pull rod 91 and second adjustable pull rod 92, first adjustable pull rod 91 is installed and is kept away from between two adjacent flame holder 4 of circumference of giving vent to anger the end, second adjustable pull rod 92 is installed and is kept away from between the flame holder 4 of giving vent to anger the end and the flame holder 4 that is close to the end of giving vent to anger, be provided with fixed auricle 42 on the face of the end of giving vent to anger of the end of flame holder 4 dorsad drum 10, adjustable pull rod 9's both ends are connected on fixed auricle 42 of flame holder 4.
Further, the combustion apparatus of the present application still includes support frame 8, and support frame 8 is circular framework, is located the inner chamber of drum 10, and is located one end fixed connection in the cavity of drum 10 with each flame holder 4 of keeping away from the end of giving vent to anger.
Through the stability of support frame 8 to and adjust through adjustable pull rod 9 to flame holder 4, make each flame holder 4 evenly distributed in the circumference, guarantee stably, guarantee the homogeneity of burning, thereby guarantee the homogeneity in temperature field.
Further, burner of this application still includes flame detector 5, and flame detector 5 installs on the section of thick bamboo wall of drum 10, and through flame detector 5's monitoring, can judge whether the combustible gas ignites, guarantees the security of low reaches equipment.
Further, be provided with annular border 6 on the lateral wall at the both ends of drum 10, 6 upwards evenly are provided with a plurality of fixed orificess on the circumference in annular border, are provided with the installation limit on the aircraft engine intake duct that needs the experiment, are provided with the fixed orifices that correspond on the installation limit, and this device coaxial arrangement is on the aircraft intake duct to it is fixed through bolt 7.
According to the combustion device, the flame stabilizer with the V-shaped cross section and the long groove structure is arranged on the circumference of the cylinder, and the combustible gas spray rod is arranged in the flame stabilizer, so that the temperature in the air passage is adjusted, and the cost is reduced. The stable working capacity of the power source for resisting the change of the high temperature rise rate can be comprehensively mastered, and the range of a high-temperature area in the air inlet channel, the high temperature rise rate and the maximum relative temperature rise can be independently changed.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A combustion apparatus, comprising:
the cylinder (10) comprises an air inlet end and an air outlet end which are positioned at two axial ends of the cylinder, at least 2 groups of first mounting holes (101) are arranged on the cylinder wall of the cylinder (10), each group of first mounting holes (101) are uniformly arranged along the circumferential direction of the cylinder wall of the cylinder (10), the plane where the circle center of each group of first mounting holes (101) is located is perpendicular to the central axis of the cylinder (10), and two adjacent groups of first mounting holes (101) are distributed at intervals in the circumferential direction;
the flame stabilizer (4) is of a long groove structure with a V-shaped cross section, one end of the flame stabilizer is fixed in the first mounting hole (101), the other end of the flame stabilizer extends into the cavity of the cylinder (10), the flame stabilizer (4) inclines towards the air outlet end of the cylinder (10), and the opening of the long groove structure of the flame stabilizer (4) faces the air outlet end of the cylinder (10); wherein the length of the flame stabilizer (4) installed on the group of first installation holes (101) close to the gas outlet end is smaller than the length of the flame stabilizer (4) installed on the group of first installation holes (101) far away from the gas outlet end;
the gas spraying rod (1) is provided with a plurality of nozzles (11) on the side wall, the gas spraying rod (1) is matched with the flame stabilizer (4) in length and fixed in a long groove structure space of the flame stabilizer (4), one end of the gas spraying rod extends out of the cylinder wall of the cylinder (10) and is connected with an external gas supply pipe, and the nozzles (11) face to the opening of the long groove structure of the flame stabilizer (4);
one end of the ignition electric nozzle (3) penetrates through the cylinder (10) and extends into the long groove structure space of the flame stabilizer (4);
further comprising:
a fixing lug (42) is arranged on the surface of the flame stabilizer (4) back to the air outlet end of the cylinder (10);
adjustable pull rod (9), including first adjustable pull rod (91) and second adjustable pull rod (92), the both ends of first adjustable pull rod (91) are connected respectively and are kept away from give vent to anger the adjacent two of circumference of end on fixed auricle (42) of flame holder (4), the both ends of second adjustable pull rod (92) are connected respectively and are kept away from give vent to anger the end flame holder (4) with be close to give vent to anger the end on fixed auricle (42) of flame holder (4).
2. A combustion device according to claim 1, characterized in that the angle between the flame holder (4) and the axis of the cylinder (10) is 60 degrees.
3. A burner according to claim 1, characterized in that the elongated slot structure of the flame holder (4) is provided with a fixing plate (41) for fixing the gas lance (1).
4. The combustion device as claimed in claim 1, wherein the first mounting hole (101) is circular, a circular mounting seat (2) is provided at one end of the flame holder (4) close to the first mounting hole (101), and the flame holder (4) is fixed in the first mounting hole (101) through the mounting seat (2).
5. The combustion device as claimed in claim 4, wherein a fixing flange (22) is arranged on the mounting seat (2), an ignition hole (21) is formed in the fixing flange (22), a flange cover (12) matched with the fixing flange (22) is installed at one end, close to the first mounting hole (101), of the combustible gas spray rod (1), the combustible gas spray rod (1) penetrates through the ignition hole (21) of the fixing flange (22) to be fixed in a long groove structural space of the flame stabilizer (4), and the flange cover (12) is fixed on the fixing flange (22) through bolts.
6. A burner arrangement as claimed in claim 4, characterised in that the mounting seat (2) is provided with a second mounting hole (23), the ignition burner (3) being mounted in the second mounting hole (23).
7. The combustion apparatus of claim 1, further comprising:
the supporting frame (8) is a circular frame body, is positioned in the inner cavity of the cylinder (10), and is fixedly connected with one end of the flame stabilizer (4) positioned in the cavity of the cylinder (10), wherein the flame stabilizer is far away from each air outlet end.
8. The combustion apparatus of claim 1, further comprising:
and the flame detector (5) is arranged on the wall of the cylinder (10).
9. The combustion device as claimed in claim 1, wherein the side walls of the two ends of the cylinder (10) are provided with annular edges (6), the annular edges (6) are uniformly provided with a plurality of fixing holes in the circumferential direction, and the cylinder (10) is fixed by the annular edges (6) in cooperation with bolts (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294355.0A CN109611887B (en) | 2018-11-01 | 2018-11-01 | Combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294355.0A CN109611887B (en) | 2018-11-01 | 2018-11-01 | Combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109611887A CN109611887A (en) | 2019-04-12 |
| CN109611887B true CN109611887B (en) | 2020-10-09 |
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ID=66002065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811294355.0A Active CN109611887B (en) | 2018-11-01 | 2018-11-01 | Combustion device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109611887B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033683B (en) * | 2020-09-09 | 2022-12-16 | 中国航发沈阳发动机研究所 | Distortion device |
| CN115013839A (en) * | 2022-05-12 | 2022-09-06 | 中国航发四川燃气涡轮研究院 | Afterburning chamber fuel spray lance structure |
| CN115435337B (en) * | 2022-09-01 | 2023-10-27 | 中国航发贵阳发动机设计研究所 | Device formed by matching flame stabilizer with oil injection rod |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1281554C (en) * | 1985-11-25 | 1991-03-19 | Thomas Rush Clements | Gas turbine engine augmentor |
| FR2858661B1 (en) * | 2003-08-05 | 2005-10-07 | Snecma Moteurs | POST-COMBUSTION DEVICE |
| FR2935464B1 (en) * | 2008-09-01 | 2018-10-26 | Safran Aircraft Engines | DEVICE FOR FASTENING AN ARM ATTACHED FLAME ON A POST-COMBUSTION HOUSING. |
| CN201944845U (en) * | 2010-12-31 | 2011-08-24 | 扬州斯大锅炉有限公司 | Gas burner |
| CN106439808A (en) * | 2016-09-27 | 2017-02-22 | 上海华之邦科技股份有限公司 | Flame stable-burning device for gas burner |
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2018
- 2018-11-01 CN CN201811294355.0A patent/CN109611887B/en active Active
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| CN109611887A (en) | 2019-04-12 |
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