Flame stabilizer

Abstract

The utility model relates to the field of airspace engines, and discloses a flame stabilizer which comprises a supporting plate, a mixing chamber is fixedly connected to the top of the supporting plate, a fixing assembly is arranged on the top of the mixing chamber, a nozzle abuts against one side of the mixing chamber, and a fuel tank is fixedly connected to the rear side of the top of the supporting plate. A material pipe is fixedly connected to one side of the fuel tank, the end, away from the fuel tank, of the material pipe is fixedly connected to the interior of the mixing chamber, an air tank is fixedly connected to the front side of the top of the supporting plate, and an air pipe is fixedly connected to one side of the air tank. According to the utility model, the stirring blades can be driven to rotate by starting the motor so as to promote the mixing of fuel and an oxidizing agent, the buckle can be driven to move by pulling the pull rod, and the buckle can be taken out from the clamping groove in the baffle through movement so as to release the fixation of the nozzle; and the inside of the mixing chamber can be conveniently cleaned after the nozzle is detached.

Description

Technical Field

[0001] The utility model relates to the field of aerospace engines, in particular to a flame stabilizer. Background Art

[0002] In an aerospace engine, the flame stabilizer plays a crucial role. The flame stabilizer can help control the combustion process, eliminate or reduce flame instability, and ensure that the fuel and oxidizer are fully mixed, ignited, and continuously burned, thereby improving the combustion stability;

[0003] The flame stabilizer includes a mixing chamber where air and fuel can be mixed, and a nozzle which is a component for discharging gas to generate thrust. Since the flame stabilizer is in a high-temperature environment, it is made of high-temperature-resistant materials to ensure that it can withstand high temperatures and continuous use;

[0004] The existing mixing chamber of the flame stabilizer lacks a stirring structure, resulting in insufficient mixing of the fuel and oxidizer, uneven airflow inside the combustion chamber, and affecting flame propagation and combustion efficiency. For this reason, a flame stabilizer is proposed to solve the above problems. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a flame stabilizer, aiming to improve the problem that the mixing chamber in the prior art lacks a stirring structure, resulting in insufficient mixing of the fuel and oxidizer.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A flame stabilizer includes a support plate. A mixing chamber is fixedly connected to the top of the support plate. A fixing component is arranged at the top of the mixing chamber for fixing the nozzle. One side of the nozzle abuts against one side of the mixing chamber. A fuel tank is fixedly connected to the top of the support plate. A material pipe is fixedly connected to one side of the fuel tank. The end of the material pipe away from the fuel tank is fixedly connected inside the mixing chamber. An air tank is fixedly connected to the top of the support plate. An air pipe is fixedly connected to one side of the air tank. The end of the air pipe away from the air tank is fixedly connected inside the mixing chamber. A motor is fixedly connected inside the mixing chamber. A first gear is fixedly connected to the driving end of the motor. A plurality of uniformly distributed rotating shafts are rotatably connected inside the support plate. A second gear is fixedly connected to one end of the rotating shaft. The second gear is meshed with the first gear. A plurality of uniformly distributed stirring blades are fixedly connected to the outer periphery of the rotating shaft;

[0008] As a further description of the above technical solution:

[0009] The fixed component includes a first fixed block, the bottom side of the first fixed block is fixedly connected to the top of one side of the mixing chamber, a second fixed block is fixedly connected to one side of the top of the mixing chamber, a fixed rod is fixedly connected between the second fixed block and the first fixed block on the opposite side, a sleeve is slidably connected to the outer periphery of the fixed rod, a spring is fixedly connected to the side of the sleeve away from the second fixed block, the end of the spring away from the sleeve is fixedly connected to one side of the first fixed block, a buckle is rotatably connected inside the sleeve, a baffle is abutted against the side of the buckle away from the sleeve, the bottom of the baffle is fixedly connected to the top of the nozzle, and a pull rod is rotatably connected inside the second fixed block;

[0010] As a further description of the above technical solution:

[0011] The spring is sleeved on the outer periphery of the fixed rod, and the outer periphery of the buckle is slidably connected inside the pull rod;

[0012] As a further description of the above technical solution:

[0013] One side of the nozzle is fixedly connected with a fixing plate, and the outer periphery of the fixing plate is slidably connected inside the mixing chamber;

[0014] As a further description of the above technical solution:

[0015] The outer periphery of the mixing chamber is fixedly connected with a thermal barrier coating;

[0016] As a further description of the above technical solution:

[0017] The outer periphery of the thermal barrier coating is fixedly connected with a ceramic coating;

[0018] As a further description of the above technical solution:

[0019] A plurality of uniformly distributed support rods are fixedly connected to the bottom of the support plate;

[0020] As a further description of the above technical solution:

[0021] The mixing chamber is manufactured by additive manufacturing, and the nozzle is manufactured by additive manufacturing.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, starting the motor can drive the first gear to rotate. The first gear can drive the second gear to rotate through rotation, the second gear can drive the rotating shaft to rotate through rotation, the rotating shaft can drive the stirring blades to rotate through rotation, and the stirring blades can break the existing gas layer structure through moving rotation, so as to promote the mixing of fuel and oxidant to the greatest extent.

[0024] 2. In the present utility model, pulling the pull rod can drive the buckle to move. The movement of the buckle can drive the sleeve to move. The movement of the sleeve can be subjected to the pulling force of the spring. Place the buckle in the internal card slot of the baffle. Releasing the pull rod can drive the sleeve to reset through the pulling force of the spring. The reset of the sleeve can drive the buckle to move. The movement of the buckle can drive the baffle to move. The movement of the baffle can drive the nozzle to move, thereby fixing the nozzle at the front side of the mixing chamber. Pulling the pull rod can drive the buckle to move. The movement of the buckle can take it out from the internal card slot of the baffle, thereby releasing the fixation of the nozzle. After disassembling the nozzle, it is convenient to clean the inside of the mixing chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional schematic diagram of a flame stabilizer proposed by the present utility model;

[0026] Figure 2 is a structural schematic diagram of the mixing chamber of a flame stabilizer proposed by the present utility model;

[0027] Figure 3 is Figure 2 an enlarged view of part A in

[0028] Figure 4 is a structural schematic diagram of the first gear of a flame stabilizer proposed by the present utility model;

[0029] Figure 5 is a structural schematic diagram of the first fixing block of a flame stabilizer proposed by the present utility model;

[0030] Figure 6 is a structural schematic diagram of the buckle of a flame stabilizer proposed by the present utility model.

[0031] Legend:

[0032] 1. Support plate; 2. Mixing chamber; 3. Nozzle; 4. Fuel tank; 5. Feed pipe; 6. Gas tank; 7. Air pipe; 8. Motor; 9. First gear; 10. Second gear; 11. Rotating shaft; 12. Stirring blade; 13. First fixing block; 14. Second fixing block; 15. Fixed rod; 16. Sleeve; 17. Spring; 18. Buckle; 19. Pull rod; 20. Baffle; 21. Fixing plate; 22. Thermal barrier coating; 23. Ceramic coating; 24. Support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Referring to Figure 1 , Figure 2 and Figure 4 , an embodiment provided by the present invention: A flame stabilizer includes a support plate 1. A mixing chamber 2 is fixedly connected to the top of the support plate 1. One side of a nozzle 3 abuts against one side of the mixing chamber 2. A fuel tank 4 is fixedly connected to the top of the support plate 1. A material pipe 5 is fixedly connected to one side of the fuel tank 4. The end of the material pipe 5 away from the fuel tank 4 is fixedly connected inside the mixing chamber 2. An air tank 6 is fixedly connected to the top of the support plate 1. An air pipe 7 is fixedly connected to one side of the air tank 6. The end of the air pipe 7 away from the air tank 6 is fixedly connected inside the mixing chamber 2. A motor 8 is fixedly connected inside the mixing chamber 2. A first gear 9 is fixedly connected to the driving end of the motor 8. A plurality of uniformly distributed rotating shafts 11 are rotatably connected inside the support plate 1. A second gear 10 is fixedly connected to one end of the rotating shaft 11. The second gear 10 is meshed with the first gear 9. A plurality of uniformly distributed stirring blades 12 are fixedly connected to the outer circumference of the rotating shaft 11. The support plate 1 is used to support the mixing chamber 2. The mixing chamber 2 is used to mix fuel and oxidizing gas. The nozzle 3 is used to discharge the fuel gas and generate thrust. The fuel tank 4 is used to store fuel. The material pipe 5 is used to convey fuel into the mixing chamber 2. The air tank 6 is used to store oxidizing gas. The air pipe 7 is used to convey the oxidizing gas inside the air tank 6 into the mixing chamber 2. The motor 8 is used to drive the first gear 9 to rotate. The first gear 9 can drive the second gear 10 to rotate through rotation. The second gear 10 can drive the rotating shaft 11 to rotate through rotation. The rotating shaft 11 can drive the stirring blades 12 to move and rotate through rotation. The stirring blades 12 can fully mix the fuel and oxidant inside the mixing chamber 2 through moving and rotating.

[0035] Referring to Figure 1 , Figure 5 and Figure 6, a fixing component is provided at the top of the mixing chamber 2. The fixing component is used to fix the nozzle 3. The fixing component includes a first fixing block 13. The bottom side of the first fixing block 13 is fixedly connected to the top of one side of the mixing chamber 2. A second fixing block 14 is fixedly connected to one side of the top of the mixing chamber 2. A fixing rod 15 is fixedly connected between the side of the second fixing block 14 facing the first fixing block 13. A sleeve 16 is slidably connected to the outer periphery of the fixing rod 15. A spring 17 is fixedly connected to the side of the sleeve 16 away from the second fixing block 14. One end of the spring 17 away from the sleeve 16 is fixedly connected to one side of the first fixing block 13. A buckle 18 is rotatably connected inside the sleeve 16. A baffle 20 is abutted against the side of the buckle 18 away from the sleeve 16. The bottom of the baffle 20 is fixedly connected to the top of the nozzle 3. A pull rod 19 is rotatably connected inside the second fixing block 14. The first fixing block 13 is used to fix the fixing rod 15. The second fixing block 14 is used to fix the fixing rod 15. The fixing rod 15 is used to fix the sleeve 16. The sleeve 16 is used to fix the spring 17. The spring 17 can drive the sleeve 16 to move through the pulling force. The buckle 18 is used to fix the baffle 20. The pull rod 19 can drive the buckle 18 to move. The baffle 20 is used to fix the nozzle 3.

[0036] Refer to Figure 1 , Figure 3 and Figure 5 , the spring 17 is sleeved on the outer periphery of the fixing rod 15. The outer periphery of the buckle 18 is slidably connected inside the pull rod 19. A fixing plate 21 is fixedly connected to one side of the nozzle 3. The outer periphery of the fixing plate 21 is slidably connected inside the mixing chamber 2. A thermal barrier coating 22 is fixedly connected to the outer periphery of the mixing chamber 2. A ceramic coating 23 is fixedly connected to the outer periphery of the thermal barrier coating 22. A plurality of uniformly distributed support rods 24 are fixedly connected to the bottom of the support plate 1. The mixing chamber 2 is additively manufactured. The nozzle 3 is additively manufactured. The fixing plate 21 is used to reinforce the fixing of the nozzle 3. The thermal barrier coating 22 can reduce the temperature of the mixing chamber 2, reduce thermal expansion and thermal stress, and improve flame stability. The ceramic coating 23 has strong heat resistance and corrosion resistance, and can reduce heat conduction. The support rods 24 are used to support the support plate 1. Using additive manufacturing for the mixing chamber 2 can improve combustion efficiency and durability. Using additive manufacturing for the nozzle 3 can improve thrust performance and durability.

[0037] Working principle: The fuel inside the fuel tank 4 can be transported into the mixing chamber 2 through the material pipe 5, and the oxidizing gas inside the gas tank 6 can be transported into the mixing chamber 2 through the gas pipe 7. Starting the motor 8 can drive the first gear 9 to rotate. The first gear 9 can drive the second gear 10 to rotate through rotation, and the second gear 10 can drive the rotating shaft 11 to rotate through rotation. The rotating shaft 11 can drive the stirring blades 12 to rotate through rotation. The stirring blades 12 can fully mix the fuel and oxidizing gas inside the mixing chamber 2 through moving rotation. After the mixing is completed, the combustible gas can be discharged through the nozzle 3 to generate thrust. By pulling the pull rod 19, the buckle 18 can be driven to move. The buckle 18 can be taken out of the slot of the baffle 20 through moving. After taking out the buckle 18, the fixation of the nozzle 3 can be released. After disassembling the nozzle 3, it is convenient to clean the inside of the mixing chamber 2. By pulling the pull rod 19, the buckle 18 can be driven to move. The buckle 18 can drive the sleeve 16 to move through moving. The sleeve 16 can be pulled by the spring 17 through moving. Placing the buckle 18 in the internal card slot of the baffle 20 and releasing the pull rod 19 can drive the sleeve 16 to reset through the pulling force of the spring 17. The sleeve 16 can drive the buckle 18 to move through resetting, and the buckle 18 can drive the baffle 20 to move through moving. The baffle 20 can drive the nozzle 3 to move through moving, so as to fix the nozzle 3 on the front side of the mixing chamber 2.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flame stabilizer, comprising a support plate (1), characterized in that: The top of the support plate (1) is fixedly connected to a mixing chamber (2), the top of the mixing chamber (2) is provided with a fixing assembly, the fixing assembly is used to fix a nozzle (3), one side of the nozzle (3) abuts against one side of the mixing chamber (2), the top of the support plate (1) is fixedly connected to a fuel tank (4), one side of the fuel tank (4) is fixedly connected to a material pipe (5), one end of the material pipe (5) away from the fuel tank (4) is fixedly connected to the inside of the mixing chamber (2), the top of the support plate (1) is fixedly connected to an air box (6), one side of the air box (6) is fixedly connected An air pipe (7) is provided, one end of the air pipe (7) away from the air box (6) is fixedly connected to the inside of the mixing chamber (2), a motor (8) is fixedly connected to the inside of the mixing chamber (2), a driving end of the motor (8) is fixedly connected to a gear one (9), a plurality of evenly distributed rotating shafts (11) are rotatably connected to the inside of the support plate (1), one end of the rotating shaft (11) is fixedly connected to a gear two (10), the gear two (10) is meshingly connected to the gear one (9), and a plurality of evenly distributed stirring blades (12) are fixedly connected to the outer periphery of the rotating shaft (11).

2. A flame stabilizer according to claim 1, characterized in that: The fixing assembly comprises a fixing block 1 (13), the bottom side of the fixing block 1 (13) is fixedly connected to the top of one side of the mixing chamber (2), the top of the mixing chamber (2) is fixedly connected to a fixing block 2 (14), the fixing block 2 (14) is fixedly connected to a fixing rod (15) on the side facing the fixing block 1 (13), the outer periphery of the fixing rod (15) is slidably connected to a sleeve (16), the side of the sleeve (16) away from the fixing block 2 (14) is fixedly connected to a spring (17), one end of the spring (17) away from the sleeve (16) is fixedly connected to one side of the fixing block 1 (13), a buckle (18) is rotatably connected inside the sleeve (16), the side of the buckle (18) away from the sleeve (16) is abutted against a baffle (20), the bottom of the baffle (20) is fixedly connected to the top of the nozzle (3), and a pull rod (19) is rotatably connected inside the fixing block 2 (14).

3. A flame stabilizer according to claim 2, characterized in that: The spring (17) is sleeved on the outer periphery of the fixing rod (15), and the outer periphery of the buckle (18) is slidably connected to the inside of the pull rod (19).

4. A flame stabilizer according to claim 1, characterized in that: A fixing plate (21) is fixedly connected to one side of the nozzle (3), and the outer periphery of the fixing plate (21) is slidably connected to the interior of the mixing chamber (2).

5. A flame stabilizer according to claim 1, characterized in that: A thermal barrier coating (22) is fixedly connected to the outer periphery of the mixing chamber (2).

6. A flame stabilizer according to claim 5, characterized in that: A ceramic coating (23) is fixedly connected to the outer periphery of the thermal barrier coating (22).

7. A flame stabilizer according to claim 1, characterized in that: A plurality of evenly distributed support rods (24) are fixedly connected to the bottom of the support plate (1).

8. A flame stabilizer according to claim 1, characterized in that: The mixing chamber (2) is manufactured by additive manufacturing, and the nozzle (3) is manufactured by additive manufacturing.

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