阅读说明：本技术 用于大型飞机表面结冰试验的变高度喷雾装置 (Height-variable spraying device for large airplane surface icing test ) 是由 陈勇 王彬文 钟科林 刘洪� 孔维梁 吴敬涛 于 2021-08-20 设计创作，主要内容包括：本发明涉及用于大型飞机表面结冰试验的变高度喷雾装置。该变高度喷雾装置包括可移动底座、内筒风机段、外筒导流段、喷雾收缩段、以及升降系统；内筒风机段安装在可移动底座上,且包括内筒和风机；外筒导流段包括依次连接的竖直段、拐角段和水平段,竖直段套设在内筒的外侧,设置有第一和第二耳式支撑；喷雾收缩段连接至水平段；升降系统包括三个升降机,它们的下端都固定在可移动底座上,第一和第二升降机的上端分别固定至第一和第二耳式支撑,第三升降机的上端固定至水平段。根据上述技术方案,本发明能起到以下有益技术效果：实现喷雾高度连续可调,能够符合大型飞机不同高度部件结冰试验需求。(The invention relates to a height-variable spraying device for a large airplane surface icing test. The height-variable spraying device comprises a movable base, an inner cylinder fan section, an outer cylinder flow guide section, a spraying contraction section and a lifting system; the inner cylinder fan section is arranged on the movable base and comprises an inner cylinder and a fan; the outer cylinder flow guide section comprises a vertical section, a corner section and a horizontal section which are sequentially connected, the vertical section is sleeved on the outer side of the inner cylinder, and a first ear type support and a second ear type support are arranged on the vertical section; the spray constriction section is connected to the horizontal section; the lifting system includes three lifts, both of which are fixed at their lower ends to the movable base, the upper ends of the first and second lifts being fixed to the first and second ear supports, respectively, and the upper end of the third lift being fixed to the horizontal section. According to the technical scheme, the invention can achieve the following beneficial technical effects: the spraying height can be continuously adjusted, and the requirements of icing tests of parts with different heights of large airplanes can be met.)

1. The height-variable spraying device for the large aircraft surface icing test is characterized by comprising a movable base, an inner cylinder fan section, an outer cylinder flow guide section, a spraying contraction section and a lifting system;

the inner cylinder fan section is arranged on the movable base and comprises an inner cylinder and a fan arranged in the inner cylinder;

the outer cylinder flow guide section comprises a vertical section, a corner section and a horizontal section which are sequentially connected, the vertical section is sleeved on the outer side of the inner cylinder, and a first ear type support and a second ear type support which horizontally extend outwards from the vertical section are arranged on the vertical section;

wherein the spray constriction section is connected to the horizontal section of the outer cylinder guide section;

wherein, operating system includes three lift, promptly, first lift, second lift and third lift, and the lower extreme of three lift all is fixed on the portable base, the upper end of first lift with the second lift is fixed respectively to first ear formula is supported with the second ear formula is supported, the upper end of third lift is fixed to the horizontal segment of urceolus water conservancy diversion section to realize the free regulation of spraying height.

2. The height-variable spraying device for the icing test on the surface of the large aircraft as claimed in claim 1, wherein the height-variable spraying device for the icing test on the surface of the large aircraft further comprises a sealing system, the sealing system comprises a sealing ring, a throat hoop and a throat hoop locking piece, the throat hoop is sleeved on the outer side of the sealing ring, and the throat hoop locking piece is used for locking the throat hoop so as to press the sealing ring on the inner cylinder.

3. The height-variable spray device for icing tests on the surface of a large aircraft according to claim 2, wherein the upper part of the sealing ring is embedded in the vertical section, and the lower part of the sealing ring is inserted into the throat hoop.

4. The height-variable spray apparatus for testing ice formation on the surface of a large aircraft according to claim 2, wherein the inner cylinder is provided at the outer side thereof with an inner cylinder protrusion, and the throat tightening lock tightly locks the throat band so as to press the sealing ring against the inner cylinder protrusion.

5. The height-variable spray apparatus for testing icing on the surface of a large aircraft according to claim 2, wherein the throat hoop is a split hoop and is provided with a plurality of holes at the distal end thereof, and the throat hoop locking member is provided with a plug for inserting one of the plurality of holes of the throat hoop.

6. The height-variable spray device for icing tests on surfaces of large aircraft according to claim 1, wherein the movable base comprises a flat plate and rollers mounted below the flat plate.

7. The variable height spray apparatus for icing tests on surfaces of large aircraft according to claim 1, wherein the inner drum fan section further comprises an inner drum support for supporting the inner drum.

8. The height-variable spraying device for the icing test on the surface of the large-scale aircraft as claimed in claim 1, wherein the outer cylinder guide section further comprises a guide vane arranged in the corner section and used for rectifying the wind flowing through the corner section.

9. The height-variable spraying device for the icing test on the surface of the large aircraft according to claim 1, wherein the spraying constriction section comprises a spraying rake provided with a nozzle, an air supply part, a water supply part and a constriction part.

10. The height-variable spraying device for the icing test on the surface of the large-scale airplane as claimed in claim 1, wherein the height-variable spraying device for the icing test on the surface of the large-scale airplane further comprises a component testing system, the component testing system is arranged at a certain distance from the spraying opening of the spray contraction section, and comprises an icing detection and test component.

Technical Field

The invention relates to the technical field of aviation, in particular to a height-variable spraying device for a large airplane surface icing test.

Background

Because the cloud temperature in high air is usually lower than 0 ℃, when the aircraft passes through a cloud layer, parts exposed on the surface of the aircraft are frozen, such as wings, airspeed tubes, engine blades, nacelles and the like, the flight performance is influenced, and the flight safety is seriously threatened, so the designed aircraft needs to be subjected to anti-icing design and meets the anti-icing performance requirement. Advanced and effective icing test platforms are important for relevant design and testing.

At present, main methods for carrying out icing tests comprise an icing wind tunnel, an open icing test bed, air spraying and the like, wherein the icing wind tunnel can only carry out icing tests of single part scaling models under most conditions due to size limitation, the open icing test platform is large and has fixed size, and the air spraying icing tests have more requirements on air environments and large spraying airplanes. Although each part is strictly designed in the design process of the aircraft, including numerical simulation, icing tests and the like, the capability of the whole aircraft to cope with icing environment and the deicing performance are evaluation standards for whether the aircraft meets the final design requirements. Because the height difference of each part of the large airplane is large, a height-variable spraying device for the icing test of the surface of the large airplane is absent at present, and the requirements of the icing test of the parts of the large airplane with different heights are difficult to meet.

Disclosure of Invention

The invention aims to provide a height-variable spraying device for a large-sized airplane surface icing test, which can realize continuous and adjustable spraying height and meet the requirements of icing tests on parts with different heights of a large-sized airplane.

The above object of the present invention is achieved by a variable height spraying device for a large aircraft surface icing test, comprising a movable base, an inner cylinder fan section, an outer cylinder flow guide section, a spray contraction section, and a lifting system;

the inner cylinder fan section is arranged on the movable base and comprises an inner cylinder and a fan arranged in the inner cylinder;

the outer cylinder flow guide section comprises a vertical section, a corner section and a horizontal section which are sequentially connected, the vertical section is sleeved on the outer side of the inner cylinder, and a first ear type support and a second ear type support which horizontally extend outwards from the vertical section are arranged on the vertical section;

wherein the spray constriction section is connected to the horizontal section of the outer cylinder guide section;

wherein, operating system includes three lift, promptly, first lift, second lift and third lift, and the lower extreme of three lift all is fixed on the portable base, the upper end of first lift with the second lift is fixed respectively to first ear formula is supported with the second ear formula is supported, the upper end of third lift is fixed to the horizontal segment of urceolus water conservancy diversion section to realize the free regulation of spraying height.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the spraying height can be continuously adjusted, and the requirements of icing tests of parts with different heights of large airplanes can be met.

Preferably, the height-variable spraying device for the icing test on the surface of the large aircraft further comprises a sealing system, wherein the sealing system comprises a sealing ring, a throat hoop and a throat hoop locking piece, the throat hoop is sleeved on the outer side of the sealing ring, and the throat hoop locking piece is used for locking the throat hoop, so that the sealing ring is pressed on the inner cylinder.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the device can seal the cylinder (the inner cylinder and the outer cylinder) of the device after the spraying device finishes height lifting.

Preferably, the upper part of the sealing ring is embedded into the vertical section, and the lower part of the sealing ring is inserted into the hose clamp.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the device can better seal the cylinder bodies (the inner cylinder and the outer cylinder) of the device after the spraying device finishes height lifting.

Preferably, the inner cylinder is provided at an outer side thereof with an inner cylinder boss, and the throat band locking member locks the throat band so as to press the sealing ring against the inner cylinder boss.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the inner cylinder bulge means that the outer side of the inner cylinder is processed into a rough surface, and the cylinder body (the inner cylinder and the outer cylinder) of the device can be better sealed after the spraying device finishes height lifting.

Preferably, the hose clamp is a split clamp and is provided with a plurality of apertures at its distal end, and the hose clamp lock is provided with a spigot for insertion into one of the plurality of apertures of the hose clamp.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: through the throat hoop and the throat hoop locking piece in a proper form, the barrel (the inner barrel and the outer barrel) of the device can be better sealed after the spraying device finishes height lifting, and a plurality of holes of the throat hoop correspond to different sealing degrees.

Preferably, the movable base includes a plate and a roller installed under the plate.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the spraying device can freely move according to the test requirement.

Preferably, the inner barrel fan section further comprises an inner barrel support for supporting the inner barrel.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the inner cylinder bracket can stably support the inner cylinder on the movable base.

Preferably, the outer cylinder flow guide section further comprises a flow guide sheet arranged in the corner section and used for rectifying the wind flowing through the corner section.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the flow deflector can rectify the wind flowing through the corner section, so that the subsequent spraying effect is better.

Preferably, the spray constriction section includes a spray rake having a nozzle mounted thereon, a gas supply part, a water supply part, and a constriction part.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the spraying rake is formed by combining atomizing nozzles, the spraying rake sprays by utilizing the cooperative control action of the air supply part and the water supply part, and the spraying is accelerated to spray out through the contraction section under the action of wind power generated by the fan.

Preferably, the height-variable spraying device for the icing test on the surface of the large aircraft further comprises a component testing system, wherein the component testing system is at a certain distance from the spraying opening of the spraying contraction section and comprises an icing detecting and testing component.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the icing test can be effectively carried out on the airplane body component.

Drawings

Fig. 1 is a schematic view of a variable height spraying device for a large aircraft surface icing test according to an embodiment of the invention at a lower position.

Fig. 2 is a schematic diagram of a variable height spraying device for icing tests on the surface of a large aircraft according to an embodiment of the invention at a higher position.

Fig. 3A is a schematic diagram of a sealing system in a variable height spraying device for icing tests on the surface of a large aircraft according to an embodiment of the invention in a state before sealing.

Fig. 3B is a schematic diagram of the sealing system in the high-altitude spraying device for the icing test on the surface of the large aircraft according to the embodiment of the invention in the sealed state.

List of reference numerals

1: a movable base;

11: a flat plate;

12: a roller;

2: an inner barrel fan section;

21: a fan;

22: an inner barrel;

23: an inner cylinder boss;

24: an inner cylinder support;

3: an outer cylinder flow guide section;

31: a vertical section;

32: a corner section;

33: a horizontal segment;

34: a flow deflector;

4: a spray constriction section;

41: carrying out spray raking;

42: a gas supply part;

43: a water supply unit;

44: a constriction;

5: a component testing system;

51: an aircraft body component;

52: spraying;

53: a first camera;

54: a second camera;

6: a lifting system;

61: a first lifter;

611: a first ear support;

62: a second lifter;

621: a second ear support;

63: a third elevator;

7: a sealing system;

71: a seal ring;

72: a larynx tightening locking piece;

73: a hose clamp.

Detailed Description

While specific embodiments of the invention will be described below, it should be noted that in the course of the detailed description of these embodiments, in order to provide a concise and concise description, all features of an actual implementation may not be described in detail. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions are made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be further appreciated that such a development effort might be complex and tedious, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as a complete understanding of this disclosure.

Unless otherwise defined, technical or scientific terms used in the claims and the specification should have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The terms "a" or "an," and the like, do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalent, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, nor are they restricted to direct or indirect connections.

Fig. 1 is a schematic view of a variable height spraying device for a large aircraft surface icing test according to an embodiment of the invention at a lower position. Fig. 2 is a schematic diagram of a variable height spraying device for icing tests on the surface of a large aircraft according to an embodiment of the invention at a higher position. Fig. 3A is a schematic diagram of a sealing system in a variable height spraying device for icing tests on the surface of a large aircraft according to an embodiment of the invention in a state before sealing. Fig. 3B is a schematic diagram of the sealing system in the high-altitude spraying device for the icing test on the surface of the large aircraft according to the embodiment of the invention in the sealed state.

As shown in fig. 1-3B, according to an embodiment of the present invention, a height-variable spraying device for a large aircraft icing test comprises a movable base 1, an inner cylinder fan section 2, an outer cylinder flow guide section 3, a spray contraction section 4, and a lifting system 6;

wherein, the inner cylinder fan section 2 is arranged on the movable base 1 and comprises an inner cylinder 22 and a fan 21 arranged in the inner cylinder 22;

the outer cylinder flow guide section 3 comprises a vertical section 31, a corner section 32 and a horizontal section 33 which are sequentially connected, the vertical section 31 is sleeved on the outer side of the inner cylinder 22, and the vertical section 31 is provided with a first ear type support 611 and a second ear type support 621 which horizontally extend outwards from the vertical section 31;

wherein, the spray contraction section 4 is connected to the horizontal section 33 of the outer cylinder diversion section 3;

wherein the lifting system 6 includes three lifters, i.e., a first lifter 61, a second lifter 62 and a third lifter 63, lower ends of which are all fixed on the movable base 1, upper ends (e.g., top ends of rams) of the first lifter 61 and the second lifter 62 are respectively fixed to the first ear support 611 and the second ear support 621, and an upper end (e.g., top end of ram) of the third lifter 63 is fixed to the horizontal section 33 of the tub guide section 3, thereby achieving free adjustment of the spray height.

According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the spraying height can be continuously adjusted, and the requirements of icing tests of parts with different heights of large airplanes can be met.

Specifically, the variable-height spraying device for the icing test on the surface of the large airplane can carry out the icing test in a controllable climate environment chamber; can be according to freezing the part position removal atomizer, can be according to the required high altitude mixture control atomizer who freezes the part of large-scale aircraft and carry out the spraying icing test with the alignment, be favorable to the high efficiency to carry out full-size complete machine icing test.

In some embodiments, as shown in fig. 1-3B, the height-variable spraying device for the icing test on the surface of a large aircraft further comprises a sealing system 7, wherein the sealing system 7 comprises a sealing ring 71, a throat hoop 73 and a throat hoop locking piece 72, the throat hoop 73 is sleeved on the outer side of the sealing ring 71, and the throat hoop locking piece 72 is used for locking the throat hoop 73, so that the sealing ring 71 is pressed on the inner barrel 22. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the device can seal the cylinder (the inner cylinder and the outer cylinder) of the device after the spraying device finishes height lifting.

In some embodiments, as shown in fig. 1-3B, the seal 71 is a circular rubber seal.

In some embodiments, as shown in fig. 3A-3B, the upper portion of the gasket 71 is embedded in the vertical section 31 and the lower portion of the gasket 71 is inserted into the throat 73. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the device can better seal the cylinder bodies (the inner cylinder and the outer cylinder) of the device after the spraying device finishes height lifting.

In some embodiments, as shown in FIGS. 3A-3B, the inner barrel 22 is provided with an inner barrel boss 23 on its outside and the throat lock 72 locks the throat band 73, thereby compressing the seal 71 against the inner barrel boss 23. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the inner cylinder protrusion 23 means that the outer side of the inner cylinder 22 is processed into a rough surface (for example, a wave shape), and the cylinder (inner cylinder and outer cylinder) of the device can be better sealed after the spraying device is lifted and lowered.

In some embodiments, the throat band 73 is a split band and is provided with a plurality of holes at its distal end, and the throat lock 72 is provided with a plug for insertion into one of the plurality of holes of the throat band 73. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: by means of the throat band 73 and the throat band locking piece 72 in a proper form, the cylinder (inner cylinder and outer cylinder) of the device can be better sealed after the spraying device completes height lifting, and the plurality of holes of the throat band 73 correspond to different sealing degrees.

In some embodiments, as shown in fig. 1-2, mobile base 1 includes a plate 11 and rollers 12 mounted under plate 11. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the spraying device can freely move according to the test requirement. That is, most of the components of the height-variable spraying device (e.g., the inner barrel fan section 2, the outer barrel flow guide section 3, the spray constriction section 4, the lifting system 6, and/or the sealing system 7, etc.) can be directly or indirectly mounted on the plate 11, and the plate 11 is supported by the rollers 12, and the spraying device can freely move according to the test requirements under the action of the rollers 12.

In some embodiments, as shown in fig. 1-2, the inner barrel fan section 2 further includes an inner barrel bracket 24 for supporting the inner barrel 22. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the inner cylinder holder 24 can firmly support the inner cylinder 22 on the movable base 1.

In some embodiments, as shown in fig. 1-2, the inner cylinder 22 is cylindrical, the blower 21 is mounted near the bottom end of the inner cylinder 22, and the bottom end of the inner cylinder 22 is flared.

In some embodiments, as shown in FIGS. 1-2, the inner barrel support 24 is machined from four struts.

In some embodiments, as shown in fig. 1-2, the outer barrel flow guide section 3 further comprises flow deflectors 34 disposed within the corner section 32 for rectifying the wind flowing through the corner section 32. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the deflector 34 is capable of rectifying the air flowing through the corner section 32, thereby improving the effect of the subsequent spraying.

In some embodiments, as shown in fig. 1-2, the outer barrel flow section 3 is also cylindrical, with an inner diameter (i.e., the inner diameter of the vertical section 31) slightly larger than the outer diameter of the inner barrel 22. The vertical section 31 is sleeved on the outer side of the inner cylinder 22, and the fan 21 drives the wind to enter the horizontal section 33 from the vertical section 31 through the corner section 32 and then enter the spray contraction section 4.

In some embodiments, as shown in fig. 1-2, the spray constriction 4 comprises a spray rake 41 with nozzles mounted thereon, an air supply 42, a water supply 43, and a constriction 44. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the spray rake 41 is formed by combining atomizing nozzles, the spray rake 41 sprays by utilizing the cooperative control action of the air supply part 42 and the water supply part 43, and the spray 52 is accelerated to be sprayed out through the contraction section 44 under the action of wind power generated by the fan.

In some embodiments, as shown in fig. 1, the height-variable spraying device for the icing test on the surface of the large aircraft further comprises a component testing system 5, wherein the component testing system 5 is at a certain distance from the spraying opening of the spray constriction section 4 and comprises an icing detection and test component. According to the technical scheme, the height-variable spraying device for the icing test on the surface of the large airplane can achieve the following beneficial technical effects: the icing test can be effectively performed on the aircraft body member 51.

In some embodiments, as shown in FIG. 1, component testing system 5 includes an aircraft body component 51, a first camera 53, and a second camera 54. The first camera 53 and the second camera 54 are the icing detection and testing components. The aircraft body part 51 illustrates the various parts of the complete machine required to carry out icing tests. The spray 52 forms a supercooled cloud under the influence of a low temperature environment, and the first camera 53 and the second camera 54 detect and test icing from different angles.

As shown in fig. 1 to 3B, according to an embodiment of the present invention, a method for performing an icing test by using the variable height spraying apparatus for an icing test on a surface of a large aircraft according to the present invention includes the following steps: first, in a low-temperature environment, the large aircraft component 51 according to the required icing test is moved to a required position by the movable base 1. Secondly, according to the height of the icing test part, the lifting system 6 is started, and after the spraying device is lifted to reach the required height under the action of the actuating cylinder, the lifting system 6 is used for locking the height of the spraying device. The throat clasp 72 in the sealing system 7 then clasps the throat clasp 73 compressing the seal ring 71 against the inner barrel 22 to effect a barrel seal. And finally, according to the calibrated air supply and water supply parameters, starting the air supply part 42 and the water supply part 43 for spraying, detecting and testing the icing by using the first camera 53 and the second camera 54, and starting a large aircraft surface icing test.

While particular embodiments of the present invention have been described above, it will be understood by those skilled in the art that they are not intended to limit the invention, and that various modifications may be made by those skilled in the art based on the above disclosure without departing from the scope of the invention.