CN112031937A

CN112031937A - Engine heating equipment

Info

Publication number: CN112031937A
Application number: CN202010884919.7A
Authority: CN
Inventors: 童虎; 夏光
Original assignee: Jiangxi Changsheng Aerospace Technology Co ltd
Current assignee: Jiangxi Changsheng Aerospace Technology Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2020-12-04

Abstract

The invention discloses an engine heating device, which relates to the technical field of aviation equipment and comprises a cuboid-shaped movable heating box body, wherein a heating system for heating an engine and a control system for controlling the heating system are arranged in the heating box body; the heating system comprises a centrifugal fan, a wind distribution structure, a heating device and a hot air pipe, wherein an air outlet of the centrifugal fan is connected with an input end of the wind distribution structure, an output end of the wind distribution structure is connected with an air inlet end of the heating device, an air outlet end of the heating device is connected with an air inlet end of the hot air pipe, and an air inlet passage of the engine is connected with an air outlet end of the hot air pipe through an adapter. The invention uses the gas generated by the fan and leads the gas to be uniformly transmitted to the interior of the engine from the inner side and the outer side of the electrified spiral nickel-chromium wire through the hot air pipe after taking away the heat generated by the nickel-chromium wire, heats the air inlet channel of the engine, the engine case and other engine interiors and raises the temperature of lubricating oil.

Description

Engine heating equipment

Technical Field

The invention relates to the technical field of aviation equipment, in particular to an engine heating device.

Background

In order to ensure the operation safety and the service life of the aero-engine, all parts of the engine need to be lubricated, and the aero-engine is a power machine with high requirements on lubricating performance of lubricating oil. Although the lubricating oil used by the aircraft engine is generally the lubricating oil with the best performance, the lubricating oil has the characteristic of reducing the lubricating performance along with the reduction of the environmental temperature, and has certain requirements on the use environmental temperature, when the outside temperature is lower than minus 20 ℃, the lubricating performance of the lubricating oil is greatly reduced, the lubricating performance is lost, and the aircraft engine can not be normally started, so that the aircraft can not normally take off.

Disclosure of Invention

In order to solve the problems in the prior art, the invention heats the air inlet channel of the engine, the engine casing and other engine interiors to raise the temperature of lubricating oil by utilizing the air generated by the fan and enabling the air to uniformly take away the heat generated by the nickel-chromium wire from the inner side and the outer side of the electrified spiral nickel-chromium wire and then transmitting the heat to the interior of the engine through the hot air pipe. .

The invention specifically adopts the following technical scheme:

an engine heating device comprises a cuboid-shaped movable heating box body,

a heating system for heating the engine and a control system for controlling the heating system are arranged in the heating box body;

the heating system comprises a centrifugal fan, an air distribution structure, a heating device and a hot air pipe, wherein an air outlet of the centrifugal fan is connected with an input end of the air distribution structure, an output end of the air distribution structure is connected with an air inlet end of the heating device, an air outlet end of the heating device is connected with one end of the hot air pipe, and the other end of the hot air pipe is connected with an air inlet channel of the engine through an adapter.

The wind distribution structure is provided with a plurality of wind deflectors, and wind channels are formed between two adjacent wind deflectors and between the wind deflectors and the inner wall of one side of the wind distribution structure.

The heating device is a closed box body, a plurality of hollow cylindrical heating core barrels are arranged in the heating device, spiral nickel-chromium wires are arranged in the heating core barrels along the length direction of the heating core barrels, and the nickel-chromium wires are electrically connected with an external power supply.

The further proposal is that the number of the hot air pipes is set to be a plurality, and the air ducts, the heating core barrels and the hot air pipes are in one-to-one correspondence and are sequentially communicated.

The heating core barrel is made of refractory materials, and a heat insulation layer is arranged around the heating core barrel.

The further proposal is that the outer surface of the tail end of the hot air pipe is wrapped with a rubber layer.

The further scheme is that a micro air valve controller and a micro temperature sensor are fixedly arranged on the upper surface of the tail end of the hot air pipe, and the micro air valve controller and the micro temperature sensor are electrically connected with the control system.

The further scheme is that the tail end of the hot air pipe is fixedly connected with a mooring rope, and the mooring rope can be connected with the reliable part of the airplane body.

The heating box body is divided into a first placing area, a second placing area and a third placing area from top to bottom by two partition plates in the heating box body, the control system is arranged in the first placing area, and one side of the first placing area is provided with a control panel; a plurality of hot air pipes arranged in parallel are placed in the second placing area, a plurality of limiting plates are fixedly arranged on the bottom surface in the second placing area, and the limiting plates are positioned between the two hot air pipes; the warming system is disposed within the third placement area.

The heating box comprises a heating box body, wherein the heating box body is provided with four side faces, and the heating box body is movably connected with the heating box body.

The invention has the beneficial effects that:

gas generated by a fan is heated and then is transmitted to the interior of the engine through a hot air pipe, the interior of the engine such as an air inlet channel and a casing of the engine is heated, and the temperature of lubricating oil is raised;

the air distribution device is arranged, so that the air quantity generated by one fan can be distributed into a plurality of air channels, and one engine or a plurality of engines can be heated simultaneously according to needs;

the spiral nickel-chromium wire is arranged, so that the gas can take away heat generated by the nickel-chromium wire from the inner side and the outer side of the spiral nickel-chromium wire uniformly, and the spiral nickel-chromium wire has the advantages of high heat exchange efficiency, small wind pressure loss, large flow, clean wind source and the like;

the heating core barrel is made of refractory materials, and a heat insulation layer is arranged around the outside of the heating core barrel. The heating core barrel made of refractory materials can improve the fire resistance of the heating device, and the thermal insulation layer can prevent heat loss.

Drawings

Fig. 1 is a schematic structural diagram of a heating system in an embodiment of the invention:

FIG. 2 is a schematic structural diagram of a wind distributing structure and a heating device in an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a heating box according to an embodiment of the present invention;

FIG. 4 is a schematic view of another angle of FIG. 3;

the attached drawings are marked as follows: 1-heating box body; 10-a first placement area; 11-a second placement area; 12-a third placement area; 2-a control system; 3-a centrifugal fan; 4-wind distributing structure; 40-a wind deflector; 41-air duct; 5-a heating device; 50-heating the core barrel; 52-air outlet end; 6-hot air pipes; 60-a miniature air valve controller; 61-micro temperature sensor; 7-control panel.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention discloses an engine heating apparatus, which includes a rectangular parallelepiped movable heating box 1, a heating system for heating an engine and a control system 2 for controlling the heating system are disposed inside the heating box 1; the system of heating includes centrifugal fan 3, divides wind structure 4, heating device 5 and hot-blast main 6, and centrifugal fan 3's air outlet links to each other with the input that divides wind structure 4, and the output that divides wind structure 4 links to each other with heating device 5's air inlet end, and heating device 5's air-out end 52 links to each other with the one end of hot-blast main 6, and the other end of hot-blast main 6 passes through the adapter and links to each other with the intake duct of engine. A plurality of air deflectors 40 are arranged in the air distribution structure 4, and air channels 41 are formed between two adjacent air deflectors 40 and between the air deflectors 40 and the inner wall of one side of the air distribution structure 4. Heating device 5 is the confined box, is provided with a plurality of hollow columniform heating core barrels 50 in the heating device 5, is provided with along its length direction in the heating core barrel 50 to be spiral helicine nichrome silk 51, and nichrome silk 51 is connected with external power supply electricity. The number of the hot air pipes 6 is set to be a plurality, and the air ducts 41, the heating core barrel 50 and the hot air pipes 6 are in one-to-one correspondence and are sequentially communicated.

In this embodiment, the heating core barrel 50 is made of refractory material, and the outer periphery of the heating core barrel 50 is provided with a heat insulation layer. The heating core barrel made of refractory materials can improve the fire resistance of the heating device, and the thermal insulation layer can prevent heat loss.

In this embodiment, the outer surface of the end of the hot air duct 6 is covered with a rubber layer. The heat can be effectively isolated. The hot air pipe 6 is of a telescopic structure, the extension length is 9-12 m, and the connection with an engine is convenient.

In this embodiment, a micro air valve controller 60 and a micro temperature sensor 61 are fixedly disposed on the upper surface of the end of the hot air pipe 6, and both the micro air valve controller 60 and the micro temperature sensor 61 are electrically connected to the control system. The air outlet quantity of each hot air pipe can be controlled through the micro air valve controller, and whether the temperature of hot air conveyed by the tail end of each hot air pipe meets the requirement or not can be judged through the micro temperature sensor.

In this embodiment, the end of the hot air duct 6 is fixedly connected with a mooring rope, and the mooring rope can be connected with a reliable part of the airplane body. In the heating process, the hot air pipe is stayed at the reliable position of the machine body through the mooring rope, so that the hot air pipe can be prevented from accidentally falling off to damage the airplane or cause personnel injury.

In the embodiment, the heating box body 1 is divided into a first placing area 10, a second placing area 11 and a third placing area 12 from top to bottom by two partition plates, a control system is arranged in the first placing area 10, and a control panel 7 is arranged on one side of the first placing area 10; a plurality of hot air pipes 6 arranged in parallel are arranged in the second placing area 11, a plurality of limiting plates are fixedly arranged on the inner bottom surface of the second placing area 11, and the limiting plates are positioned between the two hot air pipes 6; a warming system is disposed within the third placement area 12.

In this embodiment, four sides of the heating box body 1 are all provided with detachable door panels, and the top of the heating box body 1 is provided with a cover plate movably connected with the heating box body 1. The heating system and the control system are convenient to overhaul and replace.

The working process of the invention is as follows: after the heating box body is moved to the position near an aircraft engine, the hot air pipe in the second placing area is placed to the third placing area, one end of the hot air pipe is connected with the air outlet end of the heating device, meanwhile, the other end of the hot air pipe is connected with the air inlet of the engine through the adapter, the number of the used hot air pipes can be determined according to actual needs, after connection is finished, an operator sets related heating parameters through the control panel, the centrifugal fan is started, air generated by the centrifugal fan enters the air channel in the air distributing structure to enable the air to be divided into a plurality of air flows and enters the heating core barrel in the heating device, the entering air is heated through the power-on heating of the nickel-chromium wires to form higher-temperature air, the higher-temperature air is transmitted into the engine through the hot air pipe, the interiors of engines such as an air inlet channel and a casing of the engine are.

Finally, only specific embodiments of the present invention have been described in detail above. The invention is not limited to the specific embodiments described above. Equivalent modifications and substitutions by those skilled in the art are also within the scope of the present invention. Accordingly, equivalent alterations and modifications are intended to be included within the scope of the invention, without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an engine heating equipment, includes cuboid shape and mobilizable box (1) of heating, its characterized in that:

a heating system for heating the engine and a control system (2) for controlling the heating system are arranged in the heating box body (1);

the heating system comprises a centrifugal fan (3), a wind distribution structure (4), a heating device (5) and a hot air pipe (6), wherein an air outlet of the centrifugal fan (3) is connected with an input end of the wind distribution structure (4), an output end of the wind distribution structure (4) is connected with an air inlet end of the heating device (5), an air outlet end (52) of the heating device (5) is connected with one end of the hot air pipe (6), and the other end of the hot air pipe (6) is connected with an air inlet channel of an engine through an adapter.

2. An engine warming apparatus according to claim 1, wherein:

a plurality of air guide plates (40) are arranged in the air distribution structure (4), and air channels (41) are formed between every two adjacent air guide plates (40) and between the air guide plates (40) and the inner wall of one side of the air distribution structure (4).

3. An engine warming apparatus according to claim 1, wherein:

heating device (5) are the confined box, be provided with a plurality of hollow columniform heating core buckets (50) in heating device (5), be provided with along its length direction in heating core bucket (50) and be spiral helicine nichrome silk (51), nichrome silk (51) are connected with external power source electricity.

4. An engine warming apparatus according to claims 1 to 3, wherein:

the number of the hot air pipes (6) is set to be a plurality, and the air ducts (41), the heating core barrel (50) and the hot air pipes (6) are in one-to-one correspondence and are sequentially communicated.

5. An engine warming apparatus according to claim 3, wherein:

the heating core barrel (50) is made of refractory materials, and a heat insulation layer is arranged around the heating core barrel (50).

6. An engine warming apparatus according to claim 1, wherein:

the outer surface of the tail end of the hot air pipe (6) is wrapped with a rubber layer.

7. An engine warming apparatus according to claim 1, wherein:

the upper surface of the tail end of the hot air pipe (6) is fixedly provided with a micro air valve controller (60) and a micro temperature sensor (61), and the micro air valve controller (60) and the micro temperature sensor (61) are electrically connected with the control system.

8. An engine warming apparatus according to claim 1, wherein:

the tail end of the hot air pipe (6) is fixedly connected with a mooring rope which can be connected with a reliable part of the airplane body.

9. An engine warming apparatus according to claim 1, wherein:

the heating box body (1) is internally divided into a first placing area (10), a second placing area (11) and a third placing area (12) from top to bottom by two partition plates, the control system is arranged in the first placing area (10), and one side of the first placing area (10) is provided with a control panel (7); a plurality of hot air pipes (6) arranged in parallel are arranged in the second placing area (11), a plurality of limiting plates are fixedly arranged on the inner bottom surface of the second placing area (11), and the limiting plates are positioned between the two hot air pipes (6); the warming system is arranged in the third placing area (12).

10. An engine warming apparatus according to claim 1, wherein:

four sides of the heating box body (1) are provided with detachable door plates, and the top of the heating box body (1) is provided with a cover plate movably connected with the heating box body (1).