CN114440259B - Spliced flame stabilizing device with multiple oil supply paths - Google Patents
Spliced flame stabilizing device with multiple oil supply paths Download PDFInfo
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- CN114440259B CN114440259B CN202111529255.3A CN202111529255A CN114440259B CN 114440259 B CN114440259 B CN 114440259B CN 202111529255 A CN202111529255 A CN 202111529255A CN 114440259 B CN114440259 B CN 114440259B
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- stabilizer
- oil
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- circumferential
- oil supply
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K7/00—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof
- F02K7/10—Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines
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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
- F23R3/283—Attaching or cooling of fuel injecting means including supports for fuel injectors, stems, or lances
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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
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
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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
- F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
- F23R3/60—Support structures; Attaching or mounting means
Abstract
The invention provides a spliced flame stabilizing device for multi-way oil supply, which mainly solves the problems that the existing ramjet combustion chamber has various oil injection and flame stabilizing structural components, the flow loss of a runner flow in the combustion chamber is large, the organization of an airflow flow field and a combustion process is difficult, and the like. The device comprises a plurality of splicing modules and a connecting assembly, wherein the splicing modules are arranged on the inner wall of a combustion chamber through the connecting assembly; the splicing module comprises an outer ring circumferential stabilizer, a middle circumferential stabilizer and an inner ring circumferential stabilizer which are sequentially arranged from outside to inside, wherein the outer ring circumferential stabilizer and the middle circumferential stabilizer are connected through a first radial stabilizer and a second radial stabilizer which are radially arranged; the middle circumferential stabilizer and the inner ring circumferential stabilizer are connected through a third radial stabilizer which is radially arranged; a plurality of concatenation modules are spliced along circumference, form the configuration of three annular circumference stabilizer and a plurality of radial stabilizer crossing overall arrangement, and three annular circumference stabilizer staggers along the axial and forms the overall arrangement of cone tower formula.
Description
Technical Field
The invention belongs to the field of ramjet engines, and particularly relates to a multi-path oil supply spliced flame stabilizing device.
Background
The supersonic cruise missile has the characteristics of long range, high flying speed and the like, and the liquid ramjet engine is an important power component of the supersonic cruise missile. As the flight airspace range of the supersonic cruise missile is large, the stable operation of the combustion chamber in a wide range of the residual gas coefficient is required to be realized in a large range of the working conditions of incoming flow under different airspace conditions, maneuvering, cruising and the like. Because the incoming airflow speed of air in the combustion chamber is high, the flame peak surface can not be maintained and stayed, so that a bluff stabilizer with a non-streamline shape is required to be arranged in the combustion chamber so as to form a low-speed backflow area behind the bluff stabilizer to maintain and stabilize the flame. The evaporative stabilizer enhances oil-gas mixing through a gas-assisted atomization method, can expand lean and rich flameout boundaries of the combustion chamber, can enable the stabilizer to play a role of 'long open fire', and effectively increases the stable working range of the combustion chamber.
The evaporative flame stabilizer supplies oil to the combustion chamber, fuel oil mixing and evaporation are increased by using the structural heat of the stabilizer and high-speed air entering the interior of the stabilizer, and mixed gas after pneumatic mixing enters a backflow area to participate in combustion, so that better combustion organization efficiency can be achieved, and efficient combustion can be maintained in a wider residual gas coefficient working range. The stabilizer structure parameters, the fuel supply mode and the fuel supply proportion relate to the key performances such as combustion efficiency, total pressure recovery coefficient, combustion stability and reliable working range, how to ensure that the combustion chamber keeps efficient and stable combustion in a larger working range through reasonably distributing the fuel supply of the stabilizer is a key link in the design of the combustion chamber.
The existing ramjet combustion chamber needs to be provided with a fuel injection device and a flame stabilizing device, although the conventional evaporative flame stabilizing device also adopts a stabilizer for supplying fuel, the stabilizer has smaller fuel supply flow, and a special fuel injection device is still needed to be arranged for supplying main fuel. The excessive combustion assemblies arranged inside the combustion chamber inevitably cause the flow resistance loss of the channel in the combustion chamber to be increased, and the working performance of the engine is reduced. Meanwhile, because the oil supply pipeline in the combustion chamber cannot be designed in a highly integrated manner with structures such as a stabilizer, the pipeline disturbs the flow field in the combustion chamber to a certain extent, and adverse effects are caused on the matching organization and efficient combustion of the flow field in the combustion chamber. In addition, the existing stamping engine combustion chamber is mainly provided with a pipeline, a metal plate forming part welding fuel injection device and a flame stabilizing device, more processing procedures and a large amount of structure welding exist in product processing, and obvious defects exist in product processing difficulty, forming precision and service life.
Disclosure of Invention
The invention aims to solve the problems that the existing ramjet combustion chamber has various oil injection and flame stabilization structural components, the flow loss of a runner flow in the combustion chamber is large, the organization of an airflow flow field and a combustion process is difficult and the like, and provides a spliced flame stabilization device for multi-path oil supply.
In order to achieve the purpose, the invention adopts the following technical scheme:
a spliced flame stabilizing device with multi-channel oil supply comprises a plurality of spliced modules and a connecting assembly, wherein the spliced modules are arranged on the inner wall of a combustion chamber through the connecting assembly; the splicing module comprises an outer ring circumferential stabilizer, a middle circumferential stabilizer and an inner ring circumferential stabilizer which are sequentially arranged from outside to inside, the outer ring circumferential stabilizer, the middle circumferential stabilizer and the inner ring circumferential stabilizer are all arc-shaped structures, and the outer ring circumferential stabilizer and the middle circumferential stabilizer are connected through a first radial stabilizer and a second radial stabilizer which are radially arranged; the middle circumferential stabilizer and the inner ring circumferential stabilizer are connected through a third radial stabilizer which is radially arranged, and the third radial stabilizer, the first radial stabilizer and the second radial stabilizer are circumferentially staggered; the splicing modules are spliced along the circumferential direction to form a configuration that three annular circumferential stabilizers and a plurality of radial stabilizers are in crossed arrangement, and the three annular circumferential stabilizers are staggered along the axial direction to form a cone tower type arrangement;
the cross sections of the outer ring circumferential stabilizer, the middle circumferential stabilizer, the inner ring circumferential stabilizer, the first radial stabilizer, the second radial stabilizer and the third radial stabilizer are all V-shaped structures, wherein a plurality of air-entraining ports are arranged at the top ends of the V-shaped structures of the outer ring circumferential stabilizer, the middle circumferential stabilizer and the inner ring circumferential stabilizer; the inner side of the V-shaped structure is provided with a reverse V-shaped baffle which forms an oil-gas mixing channel with the V-shaped structure, the oil-gas mixing channel is communicated with a gas-leading port arranged at the top end of the V-shaped structure, and the reverse V-shaped baffle is provided with an oil-gas jet hole; a first oil supply flow channel and a second oil supply flow channel are arranged in the oil-gas mixing channel, and the oil-gas mixing channel, the first oil supply flow channel and the second oil supply flow channel among all stabilizers in the same splicing module are communicated with one another; a plurality of first oil injection holes and second oil injection holes are formed in the side walls of the first oil supply channel and the second oil supply channel and are used for communicating the first oil supply channel and the second oil supply channel with the oil-gas mixing channel; the air-entraining port on the top end of the V-shaped structure faces to the incoming flow air flow, after the high-speed air flow enters the air-entraining port, the high-speed air flow collides with fuel oil sprayed from a first oil injection hole and a second oil injection hole which are arranged in the air-entraining port to strengthen gas-liquid mixing, and an oil-gas mixture is sprayed to the rear of the stabilizer through an oil-gas injection hole lifted by the reverse V-shaped baffle after being mixed in an oil-gas mixing channel and participates in combustion.
Further, the front sides of the first radial stabilizer, the second radial stabilizer and the third radial stabilizer are provided with fuel spray bars, third fuel spray holes are formed in the fuel spray bars, the third fuel spray holes are communicated with third fuel supply runners arranged on the first radial stabilizer, the second radial stabilizer and the third radial stabilizer, and fuel of the third fuel supply runners is sprayed to the front of the stabilizer through the third fuel spray holes in the fuel spray bars after entering the third fuel supply runners, and is carried by high-speed airflow to reach the stable rear to participate in combustion.
Furthermore, the oil injection rods arranged on the first radial stabilizer and the second radial stabilizer are uniformly distributed on the same circumference, and the oil injection rods arranged on the third radial stabilizer are uniformly distributed on the same circumference.
Further, the splicing module is integrally formed by 3D printing.
Further, coupling assembling includes hangers and pull rod, the hangers sets up the butt joint department at middle circumference stabilizer, the one end and the hangers of pull rod are connected, and the other end is connected with the mount pad on the combustion chamber inner wall.
Furthermore, the butt joint of outer loop circumference stabilizer still is provided with the connection ear seat, connects the connection ear seat on the adjacent concatenation module through the pin.
Further, the number of the splicing modules is 5.
Compared with the prior art, the invention has the following beneficial technical effects:
1. the invention realizes the spliced flame stabilizing device for multi-path oil supply through reasonable structural design integration according to the functional requirements of oil supply and flame stabilizer of the combustion chamber of the liquid ramjet engine, solves the problem of integrated design of fuel injection, flame stabilization and airflow rectification structures of the liquid ramjet engine, reduces the number of parts of the combustion chamber, reduces the airflow flow resistance in the combustion chamber and improves the working performance.
2. The multi-channel oil supply spliced flame stabilizing device provided by the invention adopts a structural form formed by splicing a plurality of modules, and a certain assembly gap is reserved between different modules, so that the thermal expansion deformation of a structural part after being heated can be released from the structural design, the problem of structural thermal stress concentration is reduced, and the service life of a product is prolonged; meanwhile, the size of a single module can be reduced by the design of the sub-modules, and the 3D printing and processing difficulty of the product is reduced.
3. The spliced flame stabilizing device for multi-path oil supply provided by the invention adopts a structure that three-ring circumferential stabilizers and a plurality of radial stable cross arrangements are adopted in the structural layout, so that the structural stability of a single module is improved, and a cone tower type layout form is formed after the integral splicing, so that high-speed airflow of the stabilizers in a combustion chamber has better pneumatic stability and rigidity; meanwhile, the conical tower type layout and the diffusion section structure are matched with each other, and the air flow rectification function is good.
4. The spliced flame stabilizing device for multi-path oil supply provided by the invention adopts a structural design of high integration of the oil supply pipeline and the flame stabilizing device, and the oil supply pipeline is arranged in the stabilizer structure, so that the outside of the stabilizer has a smoother curved surface form, the pneumatic molded surface of the stabilizer is prevented from being damaged after the oil supply pipeline is arranged outside, the airflow disturbance is reduced, and the airflow resistance of the stabilizer is reduced.
Drawings
FIG. 1 is a schematic view of the spatial layout of a multi-channel oil supply split-joint flame stabilizing device according to the present invention;
FIG. 2 is a schematic diagram of a plurality of splice modules of the present invention after splicing;
FIG. 3 is a schematic structural diagram of a single splice module of the present invention;
FIG. 4 is a schematic view of the internal oil tubes, bleed ports and side plates of each stabilizer of the present invention;
FIG. 5 is a schematic view of the installation of the multi-feed split flame stabilizer of the present invention.
Reference numerals: 1-outer ring circumferential stabilizer, 2-middle circumferential stabilizer, 3-inner ring circumferential stabilizer, 4-first radial stabilizer, 5-second radial stabilizer, 6-third radial stabilizer, 7-air bleed port, 8-oil spray rod, 9-third oil spray hole, 10-connecting lug seat, 11-hanging lug, 12-third oil supply flow channel, 13-reverse V-shaped baffle, 14-first oil supply flow channel, 15-second oil supply flow channel, 16-first oil spray hole, 17-second oil spray hole, 18-oil gas spray hole, 19-pin, 20-pull rod, 21-combustion chamber inner wall, 22-mounting seat and 23-oil gas mixing channel.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention and are not intended to limit the scope of the present invention.
The invention provides a spliced flame stabilizing device with multiple oil supplies, which realizes structural integration of a fuel oil supply pipeline of the flame stabilizing device and a stabilizer body, can simplify the structure of a combustion chamber and improve the combustion organization performance of an engine, and can be used for research of low-cost and high-integration ramjet engines and other combined air-breathing engines.
The stabilizing device is formed by splicing and assembling a plurality of modular stabilizers, and all the stabilizer modules are installed and fixed as a whole after being spliced, so that the assembly structure of the stabilizer is simplified, the large assembly stress generated in the working process of the stabilizer is reduced, and the thermal expansion of the structure in the working process of the stabilizer is adapted. Meanwhile, the 3D printing integrated forming processing technology is adopted by the stabilizing device, the design requirement of the relatively complex structural configuration of the stabilizer can be met, and the pneumatic performance of the stabilizer in high-speed airflow is improved.
As shown in fig. 1 to 4, the multi-channel oil supply splicing type flame stabilizing device provided by the invention comprises a plurality of splicing modules and a connecting assembly, wherein the splicing modules are arranged on the inner wall 21 of a combustion chamber through the connecting assembly; the splicing module comprises an outer ring circumferential stabilizer 1, a middle circumferential stabilizer 2 and an inner ring circumferential stabilizer 3 which are sequentially arranged from outside to inside, the outer ring circumferential stabilizer 1, the middle circumferential stabilizer 2 and the inner ring circumferential stabilizer 3 are all arc-shaped structures, and the outer ring circumferential stabilizer 1 and the middle circumferential stabilizer 2 are connected through a first radial stabilizer 4 and a second radial stabilizer 5 which are radially arranged; the middle circumferential stabilizer 2 and the inner ring circumferential stabilizer 3 are connected through third radial stabilizers 6 which are radially arranged, and the third radial stabilizers 6, the first radial stabilizers 4 and the second radial stabilizers 5 are circumferentially staggered; the splicing modules are spliced along the circumferential direction to form a configuration of cross arrangement of three annular circumferential stabilizers and a plurality of radial stabilizers, and the three annular circumferential stabilizers are staggered along the axial direction to form a cone tower type arrangement.
As shown in fig. 4, the cross sections of the outer circumferential stabilizer 1, the middle circumferential stabilizer 2, the inner circumferential stabilizer 3, the first radial stabilizer 4, the second radial stabilizer 5, and the third radial stabilizer 6 are all V-shaped structures, a small reverse V-shaped baffle 13 is arranged on the inner side of the V-shaped structure, the two form an oil-gas mixing channel 23, a first oil supply channel 14 and a second oil supply channel 15 are arranged in the oil-gas mixing channel 23, and the first oil supply channel 14 and the second oil supply channel 15 are integrated with the side wall structure of the V-shaped structure; the oil-gas mixing channel 23 is communicated with the air-entraining port 7 arranged at the top end of the V-shaped structure, and the oil-gas mixing channel 23, the first oil supply channel 14 and the second oil supply channel 15 among the stabilizers in the same splicing module are communicated with each other; the side walls of the first oil supply channel 14 and the second oil supply channel 15 are provided with a plurality of first oil injection holes 16 and second oil injection holes 17 communicated with the oil-gas mixing channel 23, the first oil injection holes 16 and the second oil injection holes 17 are arranged at the positions of the air-entraining ports 7, namely, the center lines of the first oil injection holes 16, the second oil injection holes 17 and the air-entraining ports 7 which are arranged at the same position are positioned on the same radial plane, and the side walls of two sides of the reverse V-shaped baffle 13 of the oil-gas mixing channel 23 are provided with oil-gas injection holes 18.
As shown in fig. 4, the first radial stabilizer 4, the second radial stabilizer 5, and the third radial stabilizer 6 are each provided with an oil spray bar 8 at the front side thereof, a third oil spray hole 9 is provided in the oil spray bar 8, and the third oil spray hole 9 communicates with a third oil supply passage 12 provided in the first radial stabilizer 4, the second radial stabilizer 5, and the third radial stabilizer 6. The oil spray rods 8 arranged on the first radial stabilizer 4 and the second radial stabilizer 5 are uniformly distributed on the same circumference, and the oil spray rods 8 arranged on the third radial stabilizer 6 are uniformly distributed on the same circumference. When the flame stabilizing device works, the air entraining port 7 at the top end of the V-shaped structure faces to incoming flow air flow, after the high-speed air flow enters the air entraining port 7, the high-speed air flow collides with fuel oil sprayed out of a first oil spraying hole 16 and a second oil spraying hole 17 which are arranged in the air entraining port 7 to strengthen gas-liquid mixing, and an oil-gas mixture is sprayed to the rear of the stabilizer through an oil-gas spraying hole 18 on the reverse V-shaped baffle 13 after being mixed in an oil-gas mixing channel 23 and participates in combustion; after entering, the fuel oil in the third fuel supply flow passage 12 is sprayed to the front of the stabilizer through the third fuel spray hole 9 on the fuel spray rod 8, and is carried by high-speed airflow to reach the stable rear part to participate in combustion.
As shown in fig. 5, the connection assembly of the present invention includes a suspension loop 11 and a pull rod 20, wherein the suspension loop 11 is disposed at the butt joint of the circumferential stabilizer 2 in the middle of each module, and the whole stabilizer is mounted on a mounting seat 22 of an inner wall 21 of the combustion chamber by using the pull rod 20 and the suspension loop 11. Meanwhile, the abutting joint of the outer ring circumferential stabilizer 1 is also provided with 10,5 splicing modules which are connected with the connecting lug seats 10 on the adjacent splicing modules by adopting pins 19 to splice into a whole ring stabilizing device.
The flame stabilizing device adopts a structure of crossed arrangement of three annular circumferential stabilizers and a plurality of radial stabilizers, wherein the three annular circumferential stabilizers adopt a conical tower type arrangement form with a generatrix as an arc line in spatial arrangement, and the size of the arc line is determined according to the size structure optimization matching of a diffusion section, so that the stabilizer structure is ensured to have enough structural stability and smaller flow resistance loss under the condition of high-speed airflow, and meanwhile, airflow separation in the diffusion section of a combustion chamber is avoided.
The three annular circumferential stabilizers adopt an evaporative stabilizer scheme, and two paths of oil supply are fed into the evaporation pipe, so that the duty-level fuel control range of the stabilizers is enlarged, the stable working range of the combustion chamber can be enlarged, and the working capacity of the combustion chamber with a large oil-gas ratio is improved.
The stabilizer adopts the structural design of integrating fuel injection and flame stabilization, and the structural design of integrating the fuel supply pipeline, the air bleed port 7, the fuel injection rod 8 and the stabilizer can simplify the windward side configuration of the stabilizer and reduce the total pressure loss of the stabilizer structure.
Claims (6)
1. The utility model provides a concatenation formula flame stabilization device of multichannel fuel feeding which characterized in that: the split joint type combustor comprises a plurality of split joint modules and a connecting assembly, wherein the split joint modules are arranged on the inner wall (21) of a combustor through the connecting assembly;
the splicing module comprises an outer ring circumferential stabilizer (1), a middle circumferential stabilizer (2) and an inner ring circumferential stabilizer (3) which are sequentially arranged from outside to inside, wherein the outer ring circumferential stabilizer (1), the middle circumferential stabilizer (2) and the inner ring circumferential stabilizer (3) are all arc-shaped structures, and the outer ring circumferential stabilizer (1) and the middle circumferential stabilizer (2) are connected through a first radial stabilizer (4) and a second radial stabilizer (5) which are radially arranged; the middle circumferential stabilizer (2) and the inner ring circumferential stabilizer (3) are connected through third radial stabilizers (6) which are radially arranged, and the third radial stabilizers (6), the first radial stabilizers (4) and the second radial stabilizers (5) are circumferentially staggered;
the splicing modules are spliced along the circumferential direction to form a configuration that three annular circumferential stabilizers and a plurality of radial stabilizers are arranged in a crossed mode, and the three annular circumferential stabilizers are staggered along the axial direction to form a cone tower type arrangement;
the connecting assembly comprises a hanging lug (11) and a pull rod (20), the hanging lug (11) is arranged at the butt joint of the middle circumferential stabilizer (2), one end of the pull rod (20) is connected with the hanging lug (11), and the other end of the pull rod is connected with a mounting seat (22) on the inner wall (21) of the combustion chamber;
the cross sections of the outer ring circumferential stabilizer (1), the middle circumferential stabilizer (2), the inner ring circumferential stabilizer (3), the first radial stabilizer (4), the second radial stabilizer (5) and the third radial stabilizer (6) are all V-shaped structures, wherein a plurality of air-entraining ports (7) are arranged at the top ends of the V-shaped structures of the outer ring circumferential stabilizer (1), the middle circumferential stabilizer (2) and the inner ring circumferential stabilizer (3);
the inner side of the V-shaped structure is provided with a reverse V-shaped baffle (13), the reverse V-shaped baffle (13) and the V-shaped structure form an oil-gas mixing channel (23), the oil-gas mixing channel (23) is communicated with a gas leading port (7) arranged at the top end of the V-shaped structure, and an oil-gas injection hole (18) is formed in the reverse V-shaped baffle (13); a first oil supply flow channel (14) and a second oil supply flow channel (15) are arranged in the oil-gas mixing channel (23), and the oil-gas mixing channel (23), the first oil supply flow channel (14) and the second oil supply flow channel (15) among all stabilizers in the same splicing module are communicated with one another;
the side walls of the first oil supply flow passage (14) and the second oil supply flow passage (15) are provided with a plurality of first oil injection holes (16) and second oil injection holes (17), and the first oil injection holes (16) and the second oil injection holes (17) are used for communicating the first oil supply flow passage (14) and the second oil supply flow passage (15) with the oil-gas mixing channel (23); the air-entraining port (7) at the top end of the V-shaped structure faces the incoming flow air flow, after the high-speed air flow enters the air-entraining port (7), the high-speed air flow collides with fuel oil sprayed by the first oil spray hole (16) and the second oil spray hole (17) to strengthen gas-liquid mixing, and after being mixed in the oil-gas mixing channel (23), the oil-gas mixture is sprayed to the rear of the stabilizer through the oil-gas spray hole (18) of the reverse V-shaped baffle plate (13) and participates in combustion.
2. The multi-feed, split-mount flame holding apparatus of claim 1, wherein: the front sides of the first radial stabilizer (4), the second radial stabilizer (5) and the third radial stabilizer (6) are respectively provided with an oil spray rod (8), a third oil spray hole (9) is formed in the oil spray rod (8), and the third oil spray hole (9) is communicated with a third oil supply flow passage (12) formed in the first radial stabilizer (4), the second radial stabilizer (5) and the third radial stabilizer (6); after entering, the fuel oil in the third fuel supply flow passage (12) passes through a third fuel spray hole (9) on the fuel spray rod (8) to reach the front of the stabilizer, and is carried by high-speed airflow to reach the stable rear to participate in combustion.
3. The multi-feed, split-mount flame holding apparatus of claim 2, wherein: the oil spray rods (8) arranged on the first radial stabilizer (4) and the second radial stabilizer (5) are uniformly distributed on the same circumference, and the oil spray rods (8) arranged on the third radial stabilizer (6) are uniformly distributed on the same circumference.
4. The multi-feed spliced flame holding apparatus of claim 1 or 2 or 3 wherein: the splicing module is formed by adopting 3D printing integration.
5. The multi-feed, split-mount flame stabilization device of claim 4, wherein: the butt joint of outer ring circumference stabilizer (1) still is provided with connecting ear seat (10), connects connecting ear seat (10) on the adjacent concatenation module through pin (19).
6. The multi-feed, split-mount flame stabilization device of claim 5, wherein: the number of the splicing modules is 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111529255.3A CN114440259B (en) | 2021-12-14 | 2021-12-14 | Spliced flame stabilizing device with multiple oil supply paths |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529255.3A CN114440259B (en) | 2021-12-14 | 2021-12-14 | Spliced flame stabilizing device with multiple oil supply paths |
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| CN114440259A CN114440259A (en) | 2022-05-06 |
| CN114440259B true CN114440259B (en) | 2023-01-17 |
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| CN113464976B (en) * | 2021-05-12 | 2022-08-05 | 深圳市万泽航空科技有限责任公司 | Flame stabilizer and manufacturing method thereof |
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