Circulating cooling device for aircraft engine

Abstract

The circulating cooling device for the aircraft engine comprises a fixing box and a liquid storage barrel located in the fixing box, an air cooling mechanism and a circulating mechanism are arranged on the two sides of the liquid storage barrel respectively, and a refrigerating mechanism is arranged in the liquid storage barrel. The refrigerating mechanism is provided with refrigerating sheets located in the liquid storage barrel and a mounting frame fixedly mounted on the upper surface of the liquid storage barrel, a driving motor is fixedly connected to the upper surface of the mounting frame, and an output shaft of the driving motor penetrates through the interior of the mounting frame and is fixedly connected with a driving gear; when the driving motor is started, the driving gear and the rotating rod are driven to rotate, on one hand, the rotating rod rotates to drive the sleeve rod and the stirring blades to rotate to stir cooling liquid, and on the other hand, the stirring blades make reciprocating motion through the driven gear, the adjusting disc and other components. The two kinds of movement are overlapped, the liquidity of cooling liquid is greatly improved, the cooling liquid makes full contact with the refrigeration piece, cooling is rapidly achieved, and therefore the refrigeration efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cooling device technology, specifically a circulating cooling device for aircraft engines. Background Technology

[0002] Aircraft engines are the core power source for aircraft flight. They generate powerful thrust through the intense combustion of fuel and complex thermodynamic processes. During operation, multiple factors such as fuel combustion, high-speed friction of components, and the work done by compressed air cause extremely high temperatures to be generated inside the engine. If this heat cannot be dissipated in a timely and effective manner, it will not only reduce engine performance but also accelerate the aging of components, thereby affecting its service life. Therefore, cooling devices are needed to accelerate the cooling speed of the engine.

[0003] A search revealed a prior art circulating cooling device for aircraft engines (Publication No.: CN216820436U), comprising a fixed housing, a cooling module disposed inside the fixed housing for cooling water, a blowing module disposed above the cooling module for blowing air, a circulation module disposed outside the fixed housing for circulating cooling water, a shock-absorbing module disposed at the bottom of the fixed housing for shock absorption, and a handle disposed on the upper side of the fixed housing for gripping. This circulating cooling device, through the cooling module, can cool the water inside the fixed housing, and then circulate the water through the circulation module, allowing the water to be recycled and avoiding waste. The blowing module and circulation module dissipate heat from the surface, achieving a dual circulation effect.

[0004] While the aforementioned patent utilizes a refrigeration module to cool the water within a fixed chamber and then circulates it through a circulation module, allowing for the reuse of cooling water and preventing waste, its refrigeration module relies solely on cooling fins at the bottom of the fixed chamber to cool the water. Although a stirring blade assists in accelerating the flow of cooling water and the heat transfer between the water and the cooling fins, the relatively fixed installation position of the stirring blades makes it difficult for them to fully reach the cooling water in other areas of the chamber. This results in slow water flow in these areas, hindering timely heat exchange with the cooling fins and leading to uneven cooling in certain areas, thus affecting the overall cooling efficiency. Utility Model Content

[0005] This invention provides a circulating cooling device for aircraft engines, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a circulating cooling device for an aircraft engine, comprising a fixed box and a liquid storage tank located inside the fixed box. A wind-cooling mechanism and a circulation mechanism are respectively arranged on both sides of the liquid storage tank. A refrigeration mechanism is provided inside the liquid storage tank. The refrigeration mechanism includes a cooling plate inside the liquid storage tank and a mounting bracket fixedly installed on the upper surface of the liquid storage tank. A drive motor is fixedly connected to the upper surface of the mounting bracket. A drive gear is fixedly connected to the output shaft of the drive motor through the interior of the mounting bracket. A driven gear meshes with the outer edge of the drive gear. A reciprocating assembly is fixedly connected to one end of the driven gear through the inner wall of the mounting bracket. A rotating rod is fixedly connected to the lower surface of the drive gear. A sleeve rod is slidably connected to the end of the rotating rod through the interior of the liquid storage tank. Multiple stirring blades are fixedly connected to the outer side of the sleeve rod. Two limiting grooves are symmetrically opened on the inner side of the sleeve rod, and the inner sides of the two limiting grooves are respectively adapted to two protrusions at the end of the rotating rod.

[0007] As a further optimization, the reciprocating assembly includes a support frame, an adjusting plate, and a limiting member. The support frame has sliding grooves on both sides, with the inner sides of the two sliding grooves slidingly engaging with the outer ends of the limiting member. One side of the adjusting plate is fixedly connected to one end of the driven gear, and a protrusion is fixedly connected to the other side of the adjusting plate at an offset point from the axis. The outer side of the protrusion is adapted to the inner side of the limiting member. An L-shaped connecting plate is fixedly connected to the lower surface of the limiting member. The outer side of the L-shaped connecting plate is slidably connected to the inner wall of the storage tank, and the inner wall of one end of the L-shaped connecting plate is fixedly connected to the outer wall of the sleeve rod.

[0008] As a further optimization, the air-cooling mechanism includes a support frame A fixedly connected to the outside of the liquid storage tank and a fan fixedly connected to the upper surface of the support frame A. The suction end of the fan extends through the outer wall of the fixed box and connects to the suction hood. One side of the suction hood is fixedly connected to the outside of the fixed box. Several heat dissipation fins are provided at the port of the suction hood. A connecting pipe is fixedly connected to the exhaust end of the fan. One end of the connecting pipe extends through the outside of the fixed box and connects to a corrugated pipe A. One side of the corrugated pipe A is fixedly connected to the outside of the fixed box. The other end of the corrugated pipe A connects to a mounting shell. Several air outlets are provided on one side of the mounting shell. A corrugated pipe B connects to the other side of the mounting shell. One end of the corrugated pipe B connects to the inside of the fixed box.

[0009] As a further optimization, the circulation mechanism includes a circulation pipe located inside the mounting housing and a support frame B fixedly connected to the outside of the storage tank. A water pump is fixedly connected to the upper surface of the support frame B. A water pump inlet is fixedly connected to a water suction pipe, and one end of the water suction pipe extends into the interior of the storage tank. An outlet pipe is fixedly connected to the outlet of the water pump. One end of the outlet pipe extends into the mounting housing through a corrugated pipe B and connects to one end of the circulation pipe. A return pipe is fixedly connected to the other end of the circulation pipe, and one end of the return pipe extends into the interior of the storage tank through the corrugated pipe B.

[0010] As a further optimization, a limiting seat is fixedly connected to one side of the fixed box, and a bearing plate is slidably connected to the inner side of the limiting seat. The upper surface of one end of the bearing plate is fixedly connected to the lower surface of the mounting shell.

[0011] As a further optimization, a fixing plate is fixedly connected to the top of the limiting seat, and an electric telescopic rod is fixedly connected to the upper surface of the fixing plate. The output end of the electric telescopic rod passes through the inner wall of the fixing plate and is fixedly connected to the upper surface of the bearing plate.

[0012] As a further optimization, a base is fixedly connected to the lower surface of the fixed box, a handrail is fixedly connected to the upper surface of the base, and multiple casters are fixedly connected to the lower surface of the base.

[0013] As a further optimization, the upper surface of the liquid storage tank is connected to a water inlet pipe, the top end of which extends to the top of the fixed box. The outside of the liquid storage tank is connected to a drain pipe, one end of which passes through to the outside of the fixed box and is fixedly connected to a drain valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. When the drive motor in the refrigeration mechanism starts, it drives the drive gear and rotating rod to rotate. On one hand, the rotation of the rotating rod drives the sleeve rod and stirring blades to rotate and stir the coolant; on the other hand, through the driven gear, adjusting plate and other components, the stirring blades produce reciprocating motion. The superposition of these two motions greatly improves the fluidity of the coolant, allowing it to fully contact the refrigeration plates and quickly achieve cooling, thereby improving the refrigeration efficiency.

[0016] 2. Through the design of the air-cooling and circulation mechanisms, the fan in the air-cooling mechanism blows cold air out of the air outlet of the mounting housing through the air intake shroud and connecting pipes, directly dissipating heat from the engine surface. Meanwhile, in the circulation mechanism, the water pump drives the coolant to flow in the circulation pipe, absorbing heat from inside the engine. Thus, through the cooperation of the two mechanisms, comprehensive heat dissipation of the engine can be achieved from both internal and external levels. Furthermore, during the process of the air-cooling mechanism blowing cold air to the engine surface through the air outlet, the air blown out by the air-cooling mechanism will first come into contact with the circulation pipe to exchange heat, thereby further reducing the temperature of the air and further enhancing the heat dissipation effect of the air-cooling mechanism. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the fixing box of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the liquid storage tank of this utility model;

[0020] Figure 4 This is a schematic diagram of the refrigeration mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the reciprocating component structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the sleeve rod of this utility model;

[0023] Figure 7 This is a schematic diagram of the internal structure of the mounting shell of this utility model;

[0024] Figure 8 This is a three-dimensional structural diagram of the limiting seat of this utility model.

[0025] In the diagram: 1. Fixed box; 2. Liquid storage tank; 301. Support frame A; 302. Fan; 303. Suction hood; 304. Heat dissipation fins; 305. Connecting pipe; 306. Corrugated pipe A; 307. Mounting shell; 308. Air outlet; 309. Corrugated pipe B; 401. Circulation pipe; 402. Support frame B; 403. Water pump; 404. Pumping pipe; 405. Discharge pipe; 406. Return pipe; 501. Cooling element; 502. Mounting bracket; 503. Drive motor; 50 4. Drive gear; 505. Driven gear; 506. Rotating rod; 507. Sleeve rod; 508. Stirring blade; 509. Limiting groove; 601. Support frame; 602. Adjusting disc; 603. Limiting component; 604. Slide groove; 605. Protrusion; 606. L-shaped connecting plate; 7. Limiting seat; 701. Bearing plate; 8. Fixing plate; 801. Electric telescopic rod; 9. Base; 10. Handrail frame; 11. Casters; 12. Water inlet pipe; 13. Drain pipe; 14. Drain valve. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 8 As shown, a circulating cooling device for an aircraft engine includes a fixed housing 1 and a liquid storage tank 2 located inside the fixed housing 1. A wind-cooling mechanism and a circulation mechanism are respectively arranged on both sides of the liquid storage tank 2. A refrigeration mechanism is provided inside the liquid storage tank 2, comprising a cooling plate 501 located inside the liquid storage tank 2 and a mounting bracket 502 fixedly mounted on the upper surface of the liquid storage tank 2. A drive motor 503 is fixedly connected to the upper surface of the mounting bracket 502. The output shaft of the drive motor 503 passes through the interior of the mounting bracket 502 and is fixedly connected to a drive gear 504. A driven gear 505 meshes with the outer edge of 504. One end of the driven gear 505 passes through the inner wall of the mounting bracket 502 and is fixedly connected to a reciprocating assembly. A rotating rod 506 is fixedly connected to the lower surface of the drive gear 504. The end of the rotating rod 506 passes through the interior of the liquid storage tank 2 and is slidably connected to a sleeve rod 507. Multiple stirring blades 508 are fixedly connected to the outer side of the sleeve rod 507. Two limiting grooves 509 are symmetrically opened on the inner side of the sleeve rod 507, and the inner sides of the two limiting grooves 509 are respectively adapted to the two protrusions at the end of the rotating rod 506.

[0028] The reciprocating assembly includes a support frame 601, an adjusting plate 602, and a limiting member 603. The support frame 601 has sliding grooves 604 on both sides, and the inner sides of the two sliding grooves 604 are respectively slidably engaged with the outer sides of the two ends of the limiting member 603. One side of the adjusting plate 602 is fixedly connected to one end of the driven gear 505. The other side of the adjusting plate 602 is fixedly connected to a protrusion 605 off-center, and the outer side of the protrusion 605 is adapted to the inner side of the limiting member 603. An L-shaped connecting plate 606 is fixedly connected to the lower surface of the limiting member 603. The outer side of the L-shaped connecting plate 606 is slidably connected to the inner wall of the liquid storage tank 2, and the inner wall of one end of the L-shaped connecting plate 606 is fixedly connected to the outer wall of the sleeve rod 507.

[0029] In this embodiment, when the refrigeration mechanism is working, the drive motor 503 is started. After the drive motor 503 starts, its output shaft drives the drive gear 504 to rotate. When the drive gear 504 rotates, it drives the rotating rod 506 to rotate. Since the protrusion at the end of the rotating rod 506 is adapted to the limiting groove 509 on the inner side of the sleeve 507, the rotation of the rotating rod 506 drives the sleeve 507 and the stirring blade 508 to rotate together. In this way, the rotating stirring blade 508 stirs the coolant in the liquid storage tank 2, so that the cooling effect generated by the cooling chip 501 can be evenly distributed and the cooling of the coolant can be accelerated. At the same time, when the drive gear 504 rotates, it meshes with the driven gear 505, thereby driving the cooling mechanism to rotate. The rotation of the driven gear 504 also causes the driven gear 505 to drive the adjusting plate 602 to rotate. When the adjusting plate 602 rotates, it pushes the limiting member 603 to slide up and down along the inner side of the sliding groove 604 through the off-axis protrusion 605. While the limiting member 603 slides up and down, it drives the sleeve rod 507 and the stirring blade 508 to move up and down synchronously along the outer side of the rotating rod 506 through the L-shaped connecting plate 606. In this way, the stirring blade 508 can move up and down while rotating, so that the coolant can flow fully in the reservoir 2, allowing the coolant to fully contact the cooling plate 501, avoiding local temperature differences in the coolant, and further accelerating the cooling speed and improving the cooling efficiency.

[0030] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8As shown, the air-cooling mechanism includes a support frame A301 fixedly connected to the outside of the liquid storage tank 2 and a fan 302 fixedly connected to the upper surface of the support frame A301. The suction end of the fan 302 extends through the outer wall of the fixed box 1 and connects to the suction hood 303. One side of the suction hood 303 is fixedly connected to the outside of the fixed box 1. Several heat dissipation fins 304 are provided at the port of the suction hood 303. A connecting pipe 305 is fixedly connected to the exhaust end of the fan 302. One end of the connecting pipe 305 extends through the outside of the fixed box 1 and connects to a corrugated pipe A306. One side of the corrugated pipe A306 is fixedly connected to the outside of the fixed box 1. The other end of the corrugated pipe A306 connects to a mounting shell 307. Several air outlets 308 are provided on one side of the mounting shell 307. A corrugated pipe B309 connects to the other side of the mounting shell 307. One end of the corrugated pipe B309 connects to the inside of the fixed box 1.

[0031] The circulation mechanism includes a circulation pipe 401 located inside the mounting housing 307 and a support frame B402 fixedly connected to the outside of the storage tank 2. A water pump 403 is fixedly connected to the upper surface of the support frame B402. A water inlet pipe 404 is fixedly connected to the water inlet end of the water pump 403, and one end of the water inlet pipe 404 extends into the interior of the storage tank 2. An outlet pipe 405 is fixedly connected to the water outlet end of the water pump 403. One end of the outlet pipe 405 extends into the mounting housing 307 through a corrugated pipe B309 and is connected to one end of the circulation pipe 401. A return pipe 406 is fixedly connected to the other end of the circulation pipe 401. One end of the return pipe 406 extends into the interior of the storage tank 2 through a corrugated pipe B309.

[0032] In this embodiment, when the air-cooling mechanism is working, the fan 302 is started. After the fan 302 is turned on, air is drawn in from outside the fixed box 1 through the suction hood 303. The heat dissipation fins 304 at the port of the suction hood 303 can increase the heat exchange area between the air and the outside, and assist in air cooling. The drawn-in air enters the mounting shell 307 through the connecting pipe 305 and the corrugated pipe A306, and is then blown out through the air outlet 308 on one side of the mounting shell 307 to perform air cooling for the engine.

[0033] When the circulation mechanism is working, the water pump 403 is started, which draws the coolant from the reservoir 2 through the water pumping pipe 404. The drawn coolant is then sent through the outlet pipe 405 and the bellows B309 into the circulation pipe 401 in the mounting housing 307. The coolant then flows in the circulation pipe 401 to absorb the heat generated by the engine. After absorbing the heat from the engine, the coolant flows back into the reservoir 2 through the return pipe 406 and is cooled again by the refrigeration mechanism, thus realizing the recycling of the coolant.

[0034] In this process, when the device is cooling the engine, the air-cooling mechanism performs air cooling before the circulation mechanism. At this time, the temperature of the cooling air blown onto the engine by the air-cooling mechanism is not too low. This avoids the situation where the engine, which is already at a high temperature, directly exchanges heat with cold air, which could damage the internal materials of the engine and affect its service life. After the cooling air blown by the air-cooling mechanism has cooled the engine for a certain period of time, the circulation mechanism can then be started. During this process, as the air-cooling mechanism blows cold air onto the engine surface through the air outlet 308, the air blown by the air-cooling mechanism comes into contact with the circulation pipe 401 of the circulation mechanism in the working state, thereby exchanging heat and further reducing the temperature of the air, thus further enhancing the heat dissipation effect of the air-cooling mechanism.

[0035] In this embodiment, as Figure 1 and Figure 8 As shown, a limiting seat 7 is fixedly connected to one side of the fixed box 1, and a bearing plate 701 is slidably connected to the inner side of the limiting seat 7. The upper surface of one end of the bearing plate 701 is fixedly connected to the lower surface of the mounting shell 307.

[0036] A fixed plate 8 is fixedly connected to the top of the limiting seat 7. An electric telescopic rod 801 is fixedly connected to the upper surface of the fixed plate 8. The output end of the electric telescopic rod 801 passes through the inner wall of the fixed plate 8 and is fixedly connected to the upper surface of the bearing plate 701.

[0037] A base 9 is fixedly connected to the lower surface of the fixed box 1, a handrail 10 is fixedly connected to the upper surface of the base 9, and multiple casters 11 are fixedly connected to the lower surface of the base 9.

[0038] The upper surface of the liquid storage tank 2 is connected to a water inlet pipe 12, the top end of which extends to the top of the fixed box 1. The outer side of the liquid storage tank 2 is connected to a drain pipe 13, one end of which passes through to the outside of the fixed box 1 and is fixedly connected to a drain valve 14.

[0039] In this implementation scheme, by activating the electric telescopic rod 801, the output end of the electric telescopic rod 801 can extend and retract, thereby driving one end of the support plate 701 to slide along the inner side of the limit seat 7 for height adjustment. At the same time as the height of the support plate 701 is adjusted, the position of the mounting shell 307 will also be adjusted. Thus, the height of the mounting shell 307 can be adjusted according to actual needs, thereby changing the height of the air outlet of the air-cooling mechanism. This allows the cooling air to be blown more accurately to the parts of the aircraft engine that need cooling, which facilitates better heat dissipation of the relevant parts of the engine and improves the applicability of the device.

[0040] The base 9 provides support for the entire device, while the handrail 10 makes it easy for operators to push or move the device. The casters 11 allow the device to move flexibly in different positions, making it easy to transport the cooling device to the place where it is needed to cool the aircraft engine.

[0041] The inlet pipe 12 is used to inject cooling liquid into the storage tank 2. It can be connected to an external storage device or water source to replenish the cooling liquid. The drain pipe 13 is used to drain the liquid in the storage tank 2 by opening the drain valve 14 when the cooling liquid needs to be replaced or the equipment needs to be maintained.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circulating cooling device for an aircraft engine, comprising a fixed box (1) and a liquid storage tank (2) located inside the fixed box (1), wherein a cooling mechanism and a circulation mechanism are respectively provided on both sides of the liquid storage tank (2), and a refrigeration mechanism is provided inside the liquid storage tank (2), characterized in that: The refrigeration mechanism consists of a cooling plate (501) inside the liquid storage tank (2) and a mounting bracket (502) fixedly mounted on the upper surface of the liquid storage tank (2). A drive motor (503) is fixedly connected to the upper surface of the mounting bracket (502). The output shaft of the drive motor (503) passes through the interior of the mounting bracket (502) and is fixedly connected to a drive gear (504). A driven gear (505) meshes with the outer edge of the drive gear (504). One end of the driven gear (505) passes through the mounting bracket (502). A reciprocating assembly is fixedly connected to the inner wall. A rotating rod (506) is fixedly connected to the lower surface of the drive gear (504). The end of the rotating rod (506) is slidably connected to a sleeve rod (507) that extends into the interior of the liquid storage tank (2). Multiple stirring blades (508) are fixedly connected to the outer side of the sleeve rod (507). Two limiting grooves (509) are symmetrically opened on the inner side of the sleeve rod (507), and the inner sides of the two limiting grooves (509) are respectively adapted to the two protrusions at the end of the rotating rod (506).

2. The circulating cooling device for an aircraft engine according to claim 1, characterized in that: The reciprocating assembly includes a support frame (601), an adjusting plate (602), and a limiting member (603). The support frame (601) has sliding grooves (604) on both sides. The inner sides of the two sliding grooves (604) are slidably engaged with the outer sides of the two ends of the limiting member (603). One side of the adjusting plate (602) is fixedly connected to one end of the driven gear (505). A protrusion (605) is fixedly connected to the other side of the adjusting plate (602) at a position off-center from the axis. The outer side of the protrusion (605) is adapted to the inner side of the limiting member (603). An L-shaped connecting plate (606) is fixedly connected to the lower surface of the limiting member (603). The outer side of the L-shaped connecting plate (606) is slidably connected to the inner wall of the liquid storage tank (2). The inner wall of one end of the L-shaped connecting plate (606) is fixedly connected to the outer wall of the sleeve rod (507).

3. The circulating cooling device for an aircraft engine according to claim 1, characterized in that: The air-cooling mechanism includes a support frame A (301) fixedly connected to the outside of the liquid storage tank (2) and a fan (302) fixedly connected to the upper surface of the support frame A (301). The suction end of the fan (302) extends through to the outer wall of the fixed box (1) and connects to a suction hood (303). One side of the suction hood (303) is fixedly connected to the outside of the fixed box (1). Several heat dissipation fins (304) are provided at the port of the suction hood (303). A connecting pipe (305) is fixedly connected to the outlet end of the fan (302). One end of the connecting pipe (305) extends through to the outside of the fixed box (1) and is connected to a corrugated pipe A (306). One end of the corrugated pipe A (306) is fixedly connected to the outside of the fixed box (1). The other end of the corrugated pipe A (306) is connected to a mounting shell (307). A plurality of air vents (308) are provided on one side of the mounting shell (307). The other side of the mounting shell (307) is connected to a corrugated pipe B (309). One end of the corrugated pipe B (309) is connected to the inside of the fixed box (1).

4. A circulating cooling device for an aircraft engine according to claim 1, characterized in that: The circulation mechanism includes a circulation pipe (401) located inside the mounting shell (307) and a support frame B (402) fixedly connected to the outside of the storage tank (2). A water pump (403) is fixedly connected to the upper surface of the support frame B (402). A water pump (404) is fixedly connected to the water inlet end of the water pump (403), and one end of the water pump (404) extends into the interior of the storage tank (2). An outlet pipe (405) is fixedly connected to the water outlet end of the water pump (403). One end of the outlet pipe (405) extends into the mounting shell (307) through a corrugated pipe B (309) and connects to one end of the circulation pipe (401). A return pipe (406) is fixedly connected to the other end of the circulation pipe (401), and one end of the return pipe (406) extends into the interior of the storage tank (2) through a corrugated pipe B (309).

5. A circulating cooling device for an aircraft engine according to claim 1, characterized in that: A limiting seat (7) is fixedly connected to one side of the fixed box (1), and a bearing plate (701) is slidably connected to the inner side of the limiting seat (7). The upper surface of one end of the bearing plate (701) is fixedly connected to the lower surface of the mounting shell (307).

6. A circulating cooling device for an aircraft engine according to claim 5, characterized in that: The top of the limiting seat (7) is fixedly connected to a fixing plate (8), and the upper surface of the fixing plate (8) is fixedly connected to an electric telescopic rod (801). The output end of the electric telescopic rod (801) passes through the inner wall of the fixing plate (8) and is fixedly connected to the upper surface of the bearing plate (701).

7. A circulating cooling device for an aircraft engine according to claim 1, characterized in that: The lower surface of the fixed box (1) is fixedly connected to a base (9), the upper surface of the base (9) is fixedly connected to a handrail (10), and the lower surface of the base (9) is fixedly connected to multiple casters (11).

8. A circulating cooling device for an aircraft engine according to claim 1, characterized in that: The upper surface of the liquid storage tank (2) is connected to a water inlet pipe (12), the top end of the water inlet pipe (12) extends to the top of the fixed box (1), the outside of the liquid storage tank (2) is connected to a drain pipe (13), one end of the drain pipe (13) passes through to the outside of the fixed box (1) and is fixedly connected to a drain valve (14).

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