阅读说明：本技术 飞机空气过滤器和换热器进气口自清洁方法及自清洁结构 (Self-cleaning method and self-cleaning structure for air filter and heat exchanger air inlet of airplane ) 是由 汪炜 魏茂松 于 2019-10-12 设计创作，主要内容包括：本发明公开了飞机空气过滤器和换热器进气口自清洁方法及自清洁结构,该自清洁方法及自清洁结构均为通过设置活动安装的活动件,使得在飞机的运动状态发生变化(包括飞机各个方向上的加速度的变化和姿态的变化)时,活动件将对进气表面进行扫动和/或拍打,以实现自清洁。本发明无需额外的动能。(The invention discloses a self-cleaning method and a self-cleaning structure for an air inlet of an air filter and a heat exchanger of an airplane, wherein the self-cleaning method and the self-cleaning structure are both provided with a movable part which is movably installed, so that when the motion state of the airplane changes (including the change of acceleration and the change of posture of the airplane in all directions), the movable part sweeps and/or beats the air inlet surface to realize self-cleaning. The invention does not require additional kinetic energy.)

1. An aircraft air filter and heat exchanger air inlet self-cleaning method is characterized in that: the air inlet of the air filter or the heat exchanger of the airplane is provided with the moving part, the moving part can move in a limited range, the moving part is contacted with the air inlet surface at the air inlet of the air filter or the heat exchanger of the airplane, and when the moving state of the airplane changes, the moving part moves relative to the air inlet surface under the action of inertia force and/or gravity, so that the air inlet surface is swept and/or flapped to realize self-cleaning.

2. The utility model provides an aircraft air cleaner and heat exchanger air inlet self-cleaning structure which characterized in that: the air inlet cleaning device comprises a moving part and a movable mounting mechanism, wherein the movable mounting mechanism is fixedly mounted at an air inlet of an aircraft air filter or a heat exchanger, the moving part is movably mounted on the movable mounting mechanism, a cleaning part is arranged on the air inlet surface of the moving part, which corresponds to the air inlet of the aircraft air filter or the heat exchanger, and the cleaning part is in contact with the air inlet surface.

3. An aircraft air filter and heat exchanger air intake self-cleaning structure as claimed in claim 2, wherein: the upper end of the moving part is hinged above an air inlet of the aircraft air filter or the heat exchanger through the movable mounting mechanism, and brush bristles are arranged on the surface, facing the air inlet surface, of the cleaning part of the moving part and are directly contacted with the air inlet surface.

4. An aircraft air filter and heat exchanger air intake self-cleaning structure as claimed in claim 3, wherein: the cleaning part comprises a middle rod positioned in the middle and two right-angle bending rods fixedly arranged on two sides of the middle rod, and the bristles are arranged on the surfaces of the middle rod and the right-angle bending rods facing the air inlet surface.

5. The aircraft air filter and heat exchanger air intake self-cleaning structure of claim 4, wherein: the movable mounting mechanism comprises an articulated shaft and a connecting rod fixedly connected with the upper end of the cleaning part, the articulated shaft is fixedly mounted above an air inlet of an air filter or a heat exchanger of the airplane, an articulated hole is formed in the upper end of the connecting rod, and the connecting rod is movably sleeved on the articulated shaft through the articulated hole.

6. An aircraft air filter and heat exchanger air intake self-cleaning structure as claimed in claim 2, wherein: the movable part is installed at the air inlet of the air filter or the heat exchanger of the airplane in a sliding mode through the movable installation mechanism, the movable part can freely slide along the extending direction of the air inlet surface, brush bristles are arranged on the surface, facing the air inlet surface, of the cleaning portion of the movable part, and the brush bristles are directly contacted with the air inlet surface.

7. An aircraft air filter and heat exchanger air intake self-cleaning structure as claimed in claim 6, wherein: the movable mounting mechanism comprises two sliding rails which are respectively and fixedly mounted on two opposite side edges of an air inlet of the aircraft air filter or the heat exchanger, pulleys are respectively arranged at two ends of the movable part, and the pulleys are mounted in the sliding rails in a matching mode.

8. An aircraft air filter and heat exchanger air intake self-cleaning structure as claimed in claim 7, wherein: the movable piece is a straight rod, and the middle part of the straight rod is a cleaning part.

9. An aircraft air filter and heat exchanger air intake self-cleaning structure as claimed in claim 2, wherein: the movable part comprises at least one flexible cleaning belt, the upper end of the cleaning belt is fixed above an air inlet of the aircraft air filter or the heat exchanger, and the cleaning belt naturally falls on the air inlet surface.

10. An aircraft air filter and heat exchanger air intake self-cleaning structure as claimed in claim 9, wherein: the movable mounting mechanism comprises a cross rod and a fixing hole formed in the upper end of the cleaning belt, the cross rod is fixedly mounted above an air inlet of the aircraft air filter or the heat exchanger, and the cleaning belt is fixedly sleeved on the cross rod through the fixing hole.

Technical Field

The invention relates to an aircraft air filter and heat exchanger air inlet self-cleaning method, and also designs an aircraft air filter and heat exchanger air inlet self-cleaning structure for realizing cleaning by using the self-cleaning method.

Background

After the air filter and the heat exchanger of the airplane are used for a certain time, substances such as dust, fibers, flying floc and the like can be accumulated on the air inlet surface of the air filter and the heat exchanger, so that the air path is blocked, and further, related systems can not work normally, so that the air filter and the heat exchanger on the airplane need to be cleaned manually at regular intervals.

However, because the installation positions of the air filter and the heat exchanger of the aircraft are not easy to be close to each other, the air filter and the heat exchanger can be accessed only after a large number of parts arranged in front of the air inlet surface are disassembled at each time of cleaning, and then the air filter and the heat exchanger are cleaned.

Disclosure of Invention

The invention aims to solve the first technical problem of providing an aircraft air filter and a self-cleaning method for an air inlet of a heat exchanger.

The invention provides a self-cleaning structure for an air filter and a heat exchanger air inlet of an airplane.

The self-cleaning method of the aircraft air filter and the heat exchanger and the self-cleaning structure of the aircraft air filter and the heat exchanger can automatically clean the air inlet surfaces of the aircraft air filter and the heat exchanger in time without additional kinetic energy.

To solve the first technical problem, the technical scheme adopted by the invention is as follows:

an aircraft air filter and heat exchanger air inlet self-cleaning method is characterized in that: the air inlet of the air filter or the heat exchanger of the airplane is provided with the moving part, the moving part can move in a limited range, the moving part is contacted with the air inlet surface at the air inlet of the air filter or the heat exchanger of the airplane, and when the moving state of the airplane changes, the moving part moves relative to the air inlet surface under the action of inertia force and/or gravity, so that the air inlet surface is swept and/or flapped to realize self-cleaning.

To solve the second technical problem, the technical solution adopted by the present invention is as follows:

the utility model provides an aircraft air cleaner and heat exchanger air inlet self-cleaning structure which characterized in that: the air inlet cleaning device comprises a moving part and a movable mounting mechanism, wherein the movable mounting mechanism is fixedly mounted at an air inlet of an air filter or a heat exchanger of an airplane, the moving part is movably mounted on the movable mounting mechanism, a cleaning part is arranged on the air inlet surface of the moving part, which corresponds to the air inlet of the air filter or the heat exchanger of the airplane, and the cleaning part is in contact with the air inlet surface.

Furthermore, the upper end of the moving part is hinged above an air inlet of an air filter or a heat exchanger of the airplane through a movable mounting mechanism, and brush bristles are arranged on the surface, facing the air inlet surface, of the cleaning part of the moving part and are directly contacted with the air inlet surface.

Furthermore, the cleaning part comprises a middle rod positioned in the middle and two right-angle bending rods fixedly arranged at two sides of the middle rod, and the bristles are arranged on the surfaces of the middle rod and the right-angle bending rods facing to the air inlet surface.

Further, movable mounting mechanism includes articulated shaft and the connecting rod with the upper end fixed connection of clean portion, articulated shaft fixed mounting in the top of the air inlet of aircraft air cleaner or heat exchanger, is equipped with the hinge hole in the upper end of connecting rod, and the connecting rod passes through hinge hole movable sleeve and is on the articulated shaft.

Furthermore, the moving part is arranged at the air inlet of the air filter or the heat exchanger of the airplane in a sliding mode through the movable installation mechanism, the moving part can freely slide along the extending direction of the air inlet surface, brush bristles are arranged on the surface, facing the air inlet surface, of the cleaning part of the moving part, and the brush bristles are directly contacted with the air inlet surface.

Furthermore, the movable mounting mechanism comprises two slide rails, the two slide rails are respectively and fixedly mounted on two opposite side edges of an air inlet of the air filter or the heat exchanger of the airplane, pulleys are respectively arranged at two ends of the movable part, and the pulleys are mounted in the slide rails in a matching manner.

Further, the moving part is a straight rod, and the middle part of the straight rod is a cleaning part.

Furthermore, the movable part comprises at least one flexible cleaning belt, the upper end of the cleaning belt is fixed above the air inlet of the air filter or the heat exchanger of the airplane, and the cleaning belt naturally falls on the air inlet surface.

Furthermore, the movable mounting mechanism comprises a cross rod and a fixing hole arranged at the upper end of the cleaning belt, the cross rod is fixedly mounted above an air inlet of the air filter or the heat exchanger of the airplane, and the cleaning belt is fixedly sleeved on the cross rod through the fixing hole.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the movable part is movably arranged, so that when the motion state of the airplane changes (including the acceleration change and the attitude change in all directions of the airplane), the movable part sweeps and/or beats the air inlet surface to realize self-cleaning, the kinetic energy brought by the movement of the airplane is utilized, no additional kinetic energy is needed, and the load of the airplane is not increased. And in the flying process of the airplane each time, the moving part can sweep and/or flap the air inlet surface for countless times, and the air inlet surface is clean and timely, so that the air inlet of the air filter and the heat exchanger of the airplane is always in a good state.

In addition, manual cleaning is not needed at regular intervals, so that the disassembly, assembly and cleaning work is saved, the labor is saved, and the maintenance cost is reduced.

Drawings

FIG. 1 is a schematic front view of a first embodiment of an aircraft air filter and heat exchanger air intake self-cleaning arrangement of the present invention;

FIG. 2 is a schematic side view of a first embodiment of an aircraft air filter and heat exchanger air intake self-cleaning arrangement of the present invention;

FIG. 3 is a schematic front view of a second embodiment of an aircraft air filter and heat exchanger air intake self-cleaning arrangement of the present invention;

FIG. 4 is a schematic cross-sectional view taken along the line A-A in FIG. 3;

FIG. 5 is a schematic front view of a third embodiment of an aircraft air filter and heat exchanger air intake self-cleaning arrangement of the present invention;

fig. 6 is a side view schematic diagram of a third embodiment of an aircraft air filter and heat exchanger air intake self-cleaning structure of the present invention.

The reference numerals in the drawings mean:

1-an air intake surface; 2-a connecting rod; 2.1-hinged hole; 3-a cleaning part; 3.1-middle rod; 3.2-right angle bending rod; 4-brushing; 5-a hinged shaft; 6-a slide rail; 6.1-chute; 7-straight rod; 8-a pulley; 9-a cross bar; 10-a cleaning belt; 10.1-fixed orifices.

Detailed Description

The invention is further described below with reference to examples.