Smoke generator anti-blocking cleaning structure of turbojet engine

Abstract

The utility model discloses an anti-blockage cleaning structure for a smoke generator of a turbojet engine, which belongs to the field of blockage cleaning and comprises a turbojet component and a supply component fixedly connected onto the turbojet component. The fuming assembly is fixedly connected to the turbojet assembly; the turbojet assembly comprises a shell and further comprises an air inlet cover fixedly connected to the shell, an exhaust port fixedly connected to the shell, a high-temperature outlet fixedly connected to the shell and a main machine fixedly connected to the interior of the shell. Smoking liquid is diffused through the diffusing blades rotating at a high speed, the ejector pin is controlled through the coil and the magnetic column to clean blockages, the smoke pipe is prevented from being blocked, convenience and rapidness are achieved, the smoke generating process can be smooth, the smoke generating effect is good, atomization is thorough, generated particles are smaller, tactical action hiding is better, and the smoke generating effect is good. And after use, cleaning is automatically started without additional manual labor, so that the efficiency is higher.

Description

A smoke generator anti-clogging and cleaning structure for a turbojet engine Technical Field

[0001] This utility model relates to the field of clogging removal technology, specifically an anti-clogging removal structure for the smoke generator of a turbojet engine. Background Technology

[0002] A smoke generator on a turbojet engine is an auxiliary device integrated into the engine body or exhaust flow field. Its core function is to generate visible smoke through the interaction of high-temperature, high-speed combustion gases and a smoke-generating agent. This device typically includes a smoke-generating agent delivery pipeline, an atomization structure, and a smoke diffusion assembly. Its working principle is to use the high-temperature combustion gases discharged from the turbojet engine as a heat and power source to deliver liquid or solid smoke-generating agents through pipelines into the high-temperature region. The smoke-generating agents are heated and evaporate, combining with moisture in the air. After cooling, they form suspended particles and diffuse into smoke. Some designs enhance the atomization effect through reflective baffles or the Venturi effect to increase the smoke concentration and coverage.

[0003] These smoke generators are widely used in military camouflage, fire smoke extraction, emergency rescue, industrial testing, and large-scale performance special effects. In military scenarios, they can quickly generate smoke screens to interfere with enemy radar, infrared-guided weapons, or obscure the target's line of sight. In the firefighting field, they can be used in conjunction with turbojet fire trucks to achieve long-distance smoke dispersal or fire isolation. In scientific research and testing, they can be used to simulate complex environments or verify the sealing performance of equipment. Their importance lies in their advantages such as fast response speed, high smoke generation efficiency, and wide coverage, making them irreplaceable, especially in scenarios where rapid formation of protective barriers or visual testing is required.

[0004] Existing smoke generators are prone to clogging of the smoke generation pipeline during long-term use, mainly because the smoke generating agent contains non-volatile residues or viscous components, leading to the accumulation of deposits at pipeline bends or nozzles. To solve this problem, existing technologies employ heated and insulated pipeline designs to prevent premature condensation of the smoke generating agent, while adding swirl devices or Venturi ejector structures inside the pipeline to enhance self-cleaning capabilities. In addition, by setting up a multi-channel redundant feeding system or introducing backflushing airflow to regularly clean the pipeline, the risk of clogging can be effectively reduced and the equipment maintenance cycle can be extended.

[0005] An investigation revealed a Chinese utility model patent (publication number: CN209654134U) disclosing a smoke-generating device, comprising a smoke-generating pipe and a turbojet engine. The turbojet engine includes a housing, a compressor fan, a turbine, a thermocouple, and a fuel nozzle. The housing forms an intake channel, an exhaust channel, a gas inlet channel, and a combustion chamber. A fuel inlet cylinder is disposed within the combustion chamber, and the fuel nozzle is inserted into the fuel inlet cylinder. The gas inlet channel includes a first channel section communicating with the combustion chamber. One end of the smoke-generating pipe is a feed end, and the other end is a discharge end. The housing also has an exhaust port communicating with the exhaust channel, the exhaust port facing the discharge end of the smoke-generating pipe. A reflective baffle is disposed at the discharge end of the smoke-generating pipe, the lower end of which is connected to the smoke-generating pipe, and the reflective baffle gradually tilts away from the smoke-generating pipe from its lower end to its upper end. This utility model can improve the atomization effect and produce dense smoke.

[0006] The aforementioned patent uses a reflective baffle at the end of the smoke-generating tube to make the smoke-generating liquid collide with the reflective baffle, thereby increasing the atomization and smoke-generating effects. However, it does not mention cleaning and preventing clogging of the smoke-generating tube. After long-term use, the smoke-generating tube is prone to clogging, which affects the smoke-generating effect.

[0007] Therefore, this utility model provides an anti-clogging cleaning structure for the smoke generator of a turbojet engine to solve the above-mentioned problems. Summary of the Invention

[0008] (a) Technical problems to be solved

[0009] This invention provides an anti-clogging cleaning structure for the smoke generator of a turbojet engine, aiming to solve the problems mentioned in the background art.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, this utility model provides the following technical solution: a smoke generator anti-clogging and cleaning structure for a turbojet engine, including a turbojet assembly and a supply assembly fixedly connected to the turbojet assembly; a smoke generator fixedly connected to the turbojet assembly;

[0012] The turbojet assembly includes a housing, an air intake shroud fixedly connected to the housing, an exhaust port fixedly connected to the housing, a high-temperature outlet fixedly connected to the housing, and a main unit fixedly connected inside the housing.

[0013] As a preferred technical solution of this application, the supply component includes an air inlet on the air inlet hood, an air pipe fixedly connected to the air inlet, an air valve fixedly connected to the air pipe, a three-way port fixedly connected to the air pipe, a pressure valve on the outer shell, and a smoke-generating liquid tank fixedly connected to the pressure valve.

[0014] As a preferred technical solution of this application, the smoke generating component includes a smoke tube fixedly connected to the outer shell, a limiting ring fixedly connected to the smoke tube, a compression ring fixedly connected to the smoke tube, and a pressure block fixedly connected to the smoke tube.

[0015] As a preferred technical solution of this application, the smoke generating assembly includes a bearing fixedly connected to the pressure block, a diverging column rotatably connected to the bearing, and diverging blades fixedly connected to the diverging column.

[0016] As a preferred technical solution of this application, the smoke generating component includes a magnetic column slidably connected within a limiting ring, a pressure dividing plate fixedly connected to the magnetic column, a push plate fixedly connected to the pressure dividing plate, a pin fixedly connected to the push plate, and a coil slidably connected to the magnetic column.

[0017] As a preferred technical solution of this application, both the pressure plate and the push plate are annular with a hole in the middle.

[0018] (III) Beneficial Effects

[0019] This invention uses high-speed rotating diverging blades to diffuse the smoke-generating liquid, and coils and magnetic columns to control the ejector pins to clear blockages and prevent the smoke tube from becoming clogged. It is convenient and quick, ensuring a smooth smoke generation process with good smoke generation effect, thorough atomization, and finer particles, which are better concealed for tactical operations. After use, it automatically starts cleaning without the need for additional manual labor, making it more efficient. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the structure of this utility model;

[0021] Figure 2 is an enlarged view of part A in Figure 1;

[0022] Figure 3 is an enlarged view of part B in Figure 1.

[0023] In the diagram: 2. Turbojet assembly; 21. Housing; 22. Inlet hood; 23. Exhaust port; 24. High-temperature outlet; 25. Main unit; 3. Supply assembly; 31. Air inlet; 32. Air pipe; 33. Air valve; 34. Three-way port; 35. Pressure valve; 36. Smoke liquid tank; 4. Smoke generating assembly; 41. Smoke pipe; 42. Limiting ring; 43. Squeezing ring; 44. Pressure block; 45. Bearing; 46. Diverging column; 47. Diverging blade; 48. Magnetic column; 49. Pressure dividing plate; 410. Push plate; 411. Ejector pin; 412. Coil. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a smoke generator anti-clogging and cleaning structure for a turbojet engine, as shown in Figure 1. It includes a turbojet assembly 2, a supply assembly 3 fixedly connected to the turbojet assembly 2, and a smoke generator 4 fixedly connected to the turbojet assembly 2.

[0026] The turbojet assembly 2 includes a housing 21, an air intake shroud 22 fixedly connected to the housing 21, an exhaust port 23 fixedly connected to the housing 21, a high-temperature outlet 24 fixedly connected to the housing 21, and a main unit 25 fixedly connected inside the housing 21.

[0027] The intake shroud 22 in the turbojet assembly 2 has the functions of guiding and intake. The turbojet assembly 2 forms a high-speed airflow at the tail, which propels the aircraft forward. The intake shroud 22 is responsible for intake and pressurization behind the intake shroud 22. The main engine 25 is used for primary pressurization and combustion pressurization. The gas after combustion pressurization expands rapidly and the temperature reaches more than 1,000 degrees. It is then ejected at high speed from the high-temperature outlet 24.

[0028] As shown in Figure 2, the supply component 3 includes an air inlet 31 opened on the air inlet hood 22, an air pipe 32 fixedly connected to the air inlet 31, an air valve 33 fixedly connected to the air pipe 32, a three-way port 34 fixedly connected to the air pipe 32, a pressure valve 35 opened on the outer shell 21, and a smoke-generating liquid tank 36 fixedly connected to the pressure valve 35.

[0029] When the turbojet engine is working, the air pressure in front of the intake shroud 22 is often very high. At this time, the pressure enters the air pipe 32 through the air guide port 31. Both the air guide port 31 and the air pipe 32 are made of aviation aluminum alloy, which has high structural strength, light weight and can withstand large pressure. The front pressure brought by the high-pressure airflow opens the air valve 33 and enters the three-way port 34. Since the airflow that opens the air valve 33 still has a large flow velocity, it will create a relatively low air pressure environment. Under the siphon effect, the pressure valve 35 opens and the smoke liquid in the smoke liquid tank 36 flows into the three-way port 34 and mixes fully with the gas in the air pipe 32 to form a preliminary atomization effect.

[0030] As shown in Figure 3, the smoke generating assembly 4 includes a smoke tube 41 fixedly connected to the outer shell 21, a limiting ring 42 fixedly connected to the smoke tube 41, a compression ring 43 fixedly connected to the smoke tube 41, a pressure block 44 fixedly connected to the smoke tube 41, a bearing 45 fixedly connected to the pressure block 44, a diverging column 46 rotatably connected to the bearing 45, a diverging blade 47 fixedly connected to the diverging column 46, a magnetic column 48 slidably connected to the limiting ring 42, a pressure dividing plate 49 fixedly connected to the magnetic column 48, a push plate 410 fixedly connected to the pressure dividing plate 49, a pin 411 fixedly connected to the push plate 410, and a coil 412 slidably connected to the magnetic column 48.

[0031] The initially atomized smoke liquid, mixed with high-speed gas, reaches the smoke pipe 41 with the airflow. The limiting ring 42 has a porous structure, and the atomized smoke liquid quickly passes through the limiting ring 42 to the area between the extrusion ring 43 and the pressure block 44, and then rushes out of the smoke pipe 41. Since the turbojet engine is already working at this time, the high-speed airflow generated will drive the diverging blades 47 on the diverging column 46 to rotate at high speed. The bearing 45 limits the diverging blades 47 so that they will not deviate. After the atomized smoke liquid rushes out of the smoke pipe 41 outlet, it is crushed by the high-speed rotating diverging blades 47, further diffuses and atomizes, and is then heated by the high-temperature airflow, sprayed into the air, and smokes after cooling.

[0032] When the turbojet engine stops, a small amount of smoke-generating liquid in the gradually cooling outlet of the smoke pipe 41 and the area between the extrusion ring 43 and the pressure block 44 will cool and solidify, blocking the smoke pipe 41. At this time, the coil 412 is energized, alternately generating magnetic poles opposite to or the same as the magnetic column 48, pushing the magnetic column 48 to move up and down axially. The movement of the magnetic column 48 drives the pressure plate 49 and the push plate 410 to move, causing the ejector pin 411 to move up and down axially, clearing the blockage in the smoke pipe 41.

[0033] During use, the high-speed rotating diverging blades 47 diffuse the smoke-generating liquid, and the coils 412 and magnetic columns 48 control the ejector pins 411 to clear blockages and prevent the smoke tube 41 from becoming clogged. This is convenient and quick, ensuring a smooth smoke generation process with good smoke generation effect, thorough atomization, and finer particles, which are better concealed for tactical operations. After use, it automatically starts cleaning without the need for additional manual labor, making it more efficient.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A smoke generator anti-clogging and cleaning structure for a turbojet engine, comprising a turbojet assembly (2), characterized in that: It also includes a supply component (3), which is fixedly connected to the turbojet assembly (2); a smoke generating component (4), which is fixedly connected to the turbojet assembly (2); the turbojet assembly (2) includes a housing (21), an air intake hood (22) fixedly connected to the housing (21), an exhaust port (23) fixedly connected to the housing (21), a high temperature outlet (24) fixedly connected to the housing (21), and a main unit (25) fixedly connected inside the housing (21).

2. The anti-clogging and cleaning structure for the smoke generator of a turbojet engine according to claim 1, characterized in that: The supply component (3) includes an air inlet (31) on the air inlet hood (22), an air pipe (32) fixedly connected to the air inlet (31), an air valve (33) fixedly connected to the air pipe (32), a three-way port (34) fixedly connected to the air pipe (32), a pressure valve (35) on the outer shell (21), and a smoke-generating liquid canister (36) fixedly connected to the pressure valve (35).

3. The anti-clogging and cleaning structure for the smoke generator of a turbojet engine according to claim 1, characterized in that: The smoke generating assembly (4) includes a smoke tube (41) fixedly connected to the outer shell (21), a limiting ring (42) fixedly connected to the smoke tube (41), a compression ring (43) fixedly connected to the smoke tube (41), and a pressure block (44) fixedly connected to the smoke tube (41).

4. The anti-clogging and cleaning structure for the smoke generator of a turbojet engine according to claim 1, characterized in that: The smoke generating assembly (4) includes a bearing (45) fixedly connected to the pressure block (44), a diverging column (46) rotatably connected inside the bearing (45), and diverging blades (47) fixedly connected to the diverging column (46).

5. The anti-clogging cleaning structure for the smoke generator of a turbojet engine according to claim 1, characterized in that: The smoke-generating assembly (4) includes a magnetic column (48) slidably connected in a limiting ring (42), a pressure dividing plate (49) fixedly connected to the magnetic column (48), a push plate (410) fixedly connected to the pressure dividing plate (49), a pin (411) fixedly connected to the push plate (410), and a coil (412) slidably connected to the magnetic column (48).

6. The anti-clogging and cleaning structure for the smoke generator of a turbojet engine according to claim 5, characterized in that: Both the pressure plate (49) and the push plate (410) are annular with a hole in the middle.

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