Aircraft air mixer

Abstract

The present invention relates to the field of aircraft environmental control technology, and in particular, to an aircraft air mixer, comprising a fan assembly, an ejection assembly, a mixing assembly, and a flow distribution assembly. The ejection assembly comprises an air duct unit and a main pipe unit. The main pipe unit comprises a first main pipe, a second main pipe, and a third main pipe. The second main pipe comprises a first tube body and a first hole portion; the third main pipe comprises a second tube body and a third hole portion. The first hole portion is arranged at intervals on a side of the first tube body away from the fan assembly. The second tube body is annular and fixedly connected to the air duct unit. The second tube body is connected to the interior of the air duct unit through the third hole portion. The third hole portion is arranged at intervals on a side of the second tube body away from the fan assembly. The air duct unit comprises a first area and a second area. In this way, the problem of how to eject and quickly mix gas in an aircraft air mixer is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft environmental control, and in particular to an aircraft air mixer. Background Art

[0002] Aircraft air mixers are widely used in aircraft environmental control systems. They have two main functions: first, to mix the cold air sucked in by the fan assembly with high-temperature and high-pressure gas to obtain air with a suitable temperature for use by the aircraft system; second, when the fan assembly fails, the high-temperature and high-pressure gas can be used to inject cold air from the outside for mixing to prevent the output air from being seriously overheated. Aircraft air mixers usually include two main parts: an ejection assembly and a mixing assembly. The ejection assembly can emit high-temperature and high-pressure gas to inject cold air from the outside for mixing in the mixing assembly, thereby obtaining air with a suitable temperature for use by the aircraft system.

[0003] As the compactness of aircraft systems continues to increase, the mixing components of aircraft air mixers are becoming shorter and shorter due to space layout restrictions. In addition, traditional ejectors usually use a multi-nozzle structure with a high flow rate, which is not conducive to evenly mixing cold and hot gases in a short distance. At the same time, the noise is also relatively large. In addition, traditional aircraft air mixers mostly use a split structure, which has a large resistance when ejecting gas. Summary of the invention

[0004] In order to solve the problem of how to inject and quickly mix gas in an aircraft air mixer, the present invention provides an aircraft air mixer, comprising:

[0005] A fan assembly, the fan assembly is used to supply gas;

[0006] The exhaust fan of the present invention is connected with the exhaust fan of the present invention, and the exhaust fan of the present invention is connected with the exhaust fan of the present invention. The tube body is connected with the interior of the air duct unit through the third hole portion; the third hole portion is arranged at intervals on the side of the second tube body away from the fan assembly; the gas flowing out of the third hole portion moves in the direction away from the fan assembly; the angle between the flow direction of the gas flowing through the third hole portion and the axial axis of the air duct unit is less than 90°; the air duct unit includes a first area and a second area; the first area and the second area are arranged at intervals along the diameter direction of the air duct unit; the first area includes an area close to the first main pipe in the diameter direction of the air duct unit; the second area includes an area away from the first main pipe in the diameter direction of the air duct unit; the cross-sectional shape of the first area and the second area is the same; the sum of the cross-sectional areas of the first hole portions in the first area is greater than the sum of the cross-sectional areas of the first hole portions in the second area; the sum of the cross-sectional areas of the third hole portions in the first area is greater than the sum of the cross-sectional areas of the third hole portions in the second area;

[0007] A mixing assembly, the mixing assembly being in communication with an end of the air duct unit away from the fan assembly;

[0008] A flow splitter assembly is connected to an end of the mixing assembly away from the air duct unit.

[0009] In some embodiments, the second main pipe also includes a second hole portion; the first tube body is connected to the interior of the air duct unit through the second hole portion; the second hole portion is spaced apart on the side of the first tube body away from the fan assembly; the gas flowing out of the second hole portion moves in a direction away from the fan assembly; the angle between the flow direction of the gas flowing through the second hole portion and the axial axis of the air duct unit is less than 90°; the sum of the cross-sectional areas of the second hole portions in the first area is greater than the sum of the cross-sectional areas of the second hole portions in the second area.

[0010] In some embodiments, 15°≤A<90°, wherein A is an angle formed by an opening direction of the second hole portion and an opening direction of the first hole portion.

[0011] In some embodiments, the third main pipe also includes a fourth hole portion; the second tube body is connected to the interior of the air duct unit through the fourth hole portion; the fourth hole portion is spaced apart on the side of the second tube body away from the fan assembly; the gas flowing out of the fourth hole portion moves in a direction away from the fan assembly; the angle between the flow direction of the gas flowing through the fourth hole portion and the axial axis of the air duct unit is less than 90°; the sum of the cross-sectional areas of the fourth hole portions in the first area is greater than the sum of the cross-sectional areas of the fourth hole portions in the second area.

[0012] In some embodiments, 25°≤B<90°, wherein B is an angle formed by an opening direction of the fourth hole portion and an opening direction of the third hole portion.

[0013] In some embodiments, the ejection assembly also includes a branch pipe unit; the branch pipe unit includes a first branch pipe and a second branch pipe; the second branch pipe includes a third tube body and a fifth hole portion; one end of the first branch pipe passes through the air duct unit and is connected to the third tube body; one end of the third tube body extends in a direction away from the first branch pipe; the fifth hole portion is arranged at intervals on a side of the third tube body close to the fan assembly; the third tube body is connected to the interior of the air duct unit through the fifth hole portion; the gas flowing out of the fifth hole portion moves in a direction close to the fan assembly; the cross-sectional area of ​​the third tube body gradually increases from its side close to the fan assembly toward a direction away from the fan assembly; the sum of the cross-sectional areas of the fifth hole portions in the first area is greater than the sum of the cross-sectional areas of the fifth hole portions in the second area.

[0014] In some embodiments, the ejection assembly also includes a branch pipe unit; the branch pipe unit includes a first branch pipe and a third branch pipe; the third branch pipe includes a fourth tube body and a sixth hole portion; one end of the first branch pipe passes through the side wall of the air duct unit and is connected to the fourth tube body; the fourth tube body is annular and is fixedly connected to the inner wall of the air duct unit; the fourth tube body is connected to the interior of the air duct unit through the sixth hole portion; the sixth hole portion is spaced apart on one side of the fourth tube body close to the fan assembly; the gas flowing out of the sixth hole portion moves toward the direction close to the fan assembly; the sum of the cross-sectional areas of the sixth hole portions in the first area is greater than the sum of the cross-sectional areas of the sixth hole portions in the second area.

[0015] In some embodiments, the amount of gas discharged into the air duct unit by the third main pipe is greater than or equal to the amount of gas discharged into the air duct unit by the second main pipe.

[0016] In some embodiments, the amount of gas discharged from the main pipe unit into the air duct unit is greater than the amount of gas discharged from the branch pipe unit into the air duct unit.

[0017] In some embodiments, the diverter assembly includes a first diverter portion and a second diverter portion; the first diverter portion and the second diverter portion are spaced apart on the mixing assembly; the outer edge of the first diverter portion is tangent to the outer edge of the mixing assembly in the axial direction; one end of the first diverter portion is connected to the mixing assembly, and the other end extends in a direction away from the mixing assembly; the outer edge of the second diverter portion is tangent to the outer edge of the mixing assembly in the axial direction; one end of the second diverter portion is connected to the mixing assembly, and the other end extends in a direction away from the mixing assembly.

[0018] In order to solve the problem of how to inject and quickly mix gas in an aircraft air mixer, the present invention has the following advantages:

[0019] 1. By setting the first hole portion on the second main pipe, part of the high-temperature gas can enter the second main pipe from the first main pipe, flow out through the first hole portion, and flow toward the mixing assembly at a fixed angle relative to the axial direction of the air duct unit, thereby part of the high-temperature gas realizes a directional flow toward the mixing assembly with the help of the first hole portion.

[0020] 2. By setting the third hole portion on the third main pipe, another part of the high-temperature gas can enter the third main pipe from the first main pipe, flow out through the third hole portion, and flow toward the mixing component at a fixed angle relative to the axial direction of the air duct unit. Thus, another part of the high-temperature gas achieves a directional flow toward the mixing component with the help of the third hole portion.

[0021] 3. Through the arrangement of the first hole and the third hole, the high-temperature gas can flow in the direction of the mixing assembly in the air duct unit, and the cold air in the direction of the fan assembly is guided into the air duct unit, which prevents the high-temperature gas from flowing in the direction of the fan assembly when the fan assembly fails. At the same time, the arrangement of multiple first holes and third holes increases the path and angle of the high-temperature gas entering the air duct unit, and improves the mixing effect of the high-temperature gas and the cold air in the air duct unit, so that the aircraft air mixer can achieve the effect of guiding and quickly mixing the cold air. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of an aircraft air mixer according to an embodiment is shown;

[0023] Figure 2A schematic diagram of an aircraft air mixer is shown in another embodiment;

[0024] Figure 3 A schematic diagram of an aircraft air mixer is shown in another embodiment;

[0025] Figure 4 A cross-sectional view of an aircraft air mixer is shown in one embodiment;

[0026] Figure 5 A cross-sectional view of an ejection assembly according to an embodiment is shown;

[0027] Figure 6 A cross-sectional view of an aircraft air mixer is shown in another embodiment.

[0028] Figure numerals: 01 ejector assembly; 11 air duct unit; 12 main pipe unit; 121 first main pipe; 122 second main pipe; 1221 first pipe body; 1222 first hole portion; 1223 second hole portion; 123 third main pipe; 1231 second pipe body; 1232 third hole portion; 1233 fourth hole portion; 13 branch pipe unit; 131 first branch pipe; 132 second branch pipe; 1321 third pipe body; 1322 fifth hole portion; 133 third branch pipe; 1331 fourth pipe body; 1332 sixth hole portion; 02 mixing assembly; 03 diversion assembly; 31 first diversion portion; 32 second diversion portion; 04 fan assembly. DETAILED DESCRIPTION

[0029] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0030] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0031] This embodiment discloses an aircraft air mixer, such as Figure 1 As shown, it may include:

[0032] The fan assembly 04 is used for supplying gas;

[0033] The ejection assembly 01 includes an air duct unit 11 and a main pipe unit 12; one end of the air duct unit 11 is connected to the fan assembly 04; the axial axis of the air duct unit 11 coincides with the axial axis of the fan assembly 04; the main pipe unit 12 includes a first main pipe 121, a second main pipe 122, and a third main pipe 123; the second main pipe 122 includes a first pipe body 1221 and a first hole portion 1222; the third main pipe 123 includes a second pipe body 1231 and a third hole portion 1232; one end of the first main pipe 121 passes through the side wall of the air duct unit 11 The first tube body 1221 and the second tube body 1231 are respectively connected; one end of the first tube body 1221 extends in a direction away from the first main tube 121; the first tube body 1221 is connected to the interior of the air duct unit 11 through the first hole portion 1222; the first hole portion 1222 is arranged at intervals on the side of the first tube body 1221 away from the fan assembly 04; the gas flowing out of the first hole portion 1222 moves in a direction away from the fan assembly 04; the angle between the flow direction of the gas flowing through the first hole portion 1222 and the axial axis of the air duct unit 11 is less than 90°; The tube body 1231 is annular and fixedly connected to the air duct unit 11; the second tube body 1231 is connected to the inside of the air duct unit 11 through the third hole portion 1232; the third hole portion 1232 is arranged at intervals on the side of the second tube body 1231 away from the fan assembly 04; the gas flowing out of the third hole portion 1232 moves in a direction away from the fan assembly 04; the angle between the flow direction of the gas flowing through the third hole portion 1232 and the axial axis of the air duct unit 11 is less than 90°; the air duct unit 11 includes a first area and a second area; the first area and the second area are arranged along the air The first area includes an area close to the first main pipe 121 in the diameter direction of the air duct unit 11; the second area includes an area far away from the first main pipe 121 in the diameter direction of the air duct unit 11; the cross-sectional shape of the first area and the second area is the same; the sum of the cross-sectional areas of the first hole portions 1222 in the first area is greater than the sum of the cross-sectional areas of the first hole portions 1222 in the second area; the sum of the cross-sectional areas of the third hole portions 1232 in the first area is greater than the sum of the cross-sectional areas of the third hole portions 1232 in the second area;

[0034] The mixing assembly 02 is connected to an end of the air duct unit 11 away from the fan assembly 04;

[0035] The flow splitter component 03 is connected to an end of the mixing component 02 away from the air duct unit 11 .

[0036] In this embodiment, if Figure 1As shown, the aircraft air mixer can mix the cold air sucked in by the fan assembly 04 with high-temperature and high-pressure gas, so as to obtain air of suitable temperature for use by the aircraft system; at the same time, when the fan assembly 04 fails, the high-temperature and high-pressure gas can be used to draw in external cold air for mixing, so as to prevent the output air from being seriously overheated. With the continuous improvement of the compactness of the aircraft system, the mixing assembly 02 is getting shorter and shorter due to the limitation of the spatial layout, while the traditional aircraft air mixer often adopts a multi-nozzle structure with a high flow rate, which is not conducive to uniform mixing of hot and cold gases within a short distance. In view of this situation, the present invention proposes an aircraft air mixer. By optimizing the structure of the aircraft air mixer, the additive manufacturing integrated molding technology can be used to make the obtained aircraft air mixer have a compact structure and no gaps at the joints, which is convenient for reducing noise and flow resistance, while better exerting the functions of drawing and mixing gases.

[0037] like Figure 1 As shown, the aircraft air mixer may include a fan assembly 04 and an ejection assembly 01. The fan assembly 04 is a component in the aircraft air mixer that can extract cold air from the outside to supply it to the aircraft air mixer for mixing with the gas. The fan assembly 04 can be located at the front section of the aircraft air mixer and can be detachably connected to the ejection assembly 01 to facilitate extracting cold air from the environment, delivering it to the ejection assembly 01 and mixing it with the high-temperature and high-pressure gas released by the ejection assembly 01.

[0038] The ejection assembly 01 can be located in the middle section of the aircraft air mixer, and can have the function of ejecting gas and preliminarily mixing gases of different temperatures. It can release high-temperature and high-pressure gas and the cold air input by the fan assembly 04, or preliminarily mix with the cold air ejected by the high-temperature and high-pressure gas when the fan assembly 04 is damaged. The ejection assembly 01 can include a duct unit 11 and a main pipe unit 12. The duct unit 11 can be cylindrical, which is convenient for providing a passage for gas flow on the one hand, and can provide fixed support for the main pipe unit 12 on the other hand. The main pipe unit 12 can include a specific structure, which can realize the injection of high-temperature and high-pressure gas, eject external cold air, and realize the preliminary mixing of high-temperature gas and cold air. One end of the duct unit 11 can be in a connected state with the fan assembly 04, so that the external cold air can enter the duct unit 11 through the fan assembly 04. The axial axis of the duct unit 11 can coincide with the axial axis of the fan assembly 04, and the external cold air can directly enter the duct unit 11 through the fan assembly 04, reducing the wind resistance in the process. The main unit 12 can be tightly combined with the air duct unit 11 and fixedly connected as one. The specific combination method is not limited and can be selected according to actual conditions. For example, it can be an integrated additive manufacturing, or it can be processed separately and then connected by welding or clamps, cloth-reinforced hoses, etc. Preferably, the air duct can be formed by additive manufacturing to better adapt to different spaces. Figure 1 As shown, the main pipe unit 12 includes a first main pipe 121, a second main pipe 122, and a third main pipe 123. High temperature gas can enter the second main pipe 122 and the third main pipe 123 through the first main pipe 121. Figure 2 , Figure 3 As shown, the second main pipe 122 may include a first pipe body 1221 and a first hole portion 1222, and the third main pipe 123 may include a second pipe body 1231 and a third hole portion 1232. The first pipe body 1221 and the second pipe body 1231 are passages through which high-temperature gas flows, the first hole portion 1222 penetrates the first pipe body 1221, and the third hole portion 1232 penetrates the second pipe body 1231. The first hole portion 1222 and the third hole portion 1232 have specific opening directions, which can guide the outflowing gas so that the gas can flow in a directional manner along the opening direction. One end of the first main pipe 121 can be connected to a high-temperature and high-pressure gas source, and the other end can pass through the side wall of the air duct unit 11 to communicate with the first tube body 1221 and the second tube body 1231 respectively, so that the high-temperature and high-pressure gas can enter the first tube body 1221 of the second main pipe 122 and the second tube body 1231 of the third main pipe 123 through the first main pipe 121, and flow out through the first hole portion 1222 of the second main pipe 122 and the third hole portion 1232 of the third main pipe 123.

[0039] The first tube body 1221 can be arranged in a direction perpendicular to the axial axis of the air duct unit 11. One end of the first tube body 1221 can be connected to the first main tube 121, and the other end can extend in a direction away from the first main tube 121 until it abuts against the wall of the air duct unit 11. The abutment can be in a closed state to prevent leakage from disturbing the airflow in the air duct unit 11. The first tube body 1221 can be connected to the inside of the air duct unit 11 through the first hole portion 1222, so that the high-temperature gas in the first tube body 1221 can flow to the inside of the air duct unit 11 through the first hole portion 1222. By setting the first hole portion 1222 at intervals on the side of the first tube body 1221 away from the fan assembly 04, and setting the angle between the first hole portion 1222 and the axial axis of the air duct unit 11 to be less than 90°, the gas flowing out of the first hole portion 1222 can move in a direction away from the fan assembly 04. The specific size of the angle between the first hole portion 1222 and the axial axis of the air duct unit 11 is not limited and can be selected according to actual conditions. The second tube body 1231 is annular and can be fixedly connected to the inner wall of the air duct unit 11. The second tube body 1231 is connected to the interior of the air duct unit 11 through the third hole portion 1232, so that the high-temperature gas in the second tube body 1231 can flow to the interior of the air duct unit 11 through the third hole portion 1232. By setting the third hole portion 1232 at intervals on the side of the second tube body 1231 away from the fan assembly 04, and setting the angle between the third hole portion 1232 and the axial axis of the air duct unit 11 to be less than 90°, the gas flowing out of the third hole portion 1232 can be moved in a direction away from the fan assembly 04. The specific size of the angle between the third hole portion 1232 and the axial axis of the air duct unit 11 is not limited and can be selected according to actual conditions. The ejection assembly 01 can form a high-speed gas flow flowing in the direction away from the fan assembly 04 through the first hole portion 1222 and the third hole portion 1232. When the fan assembly 04 is damaged, since the gas flow velocity in the air duct unit 11 away from the fan assembly 04 is fast and the pressure is low, the cold air in the direction of the fan assembly 04 can be ejected toward the air duct unit 11 and mixed with the high-temperature gas flow ejected from the first hole portion 1222 and the third hole portion 1232, and together flow in the direction away from the fan assembly 04, thereby preventing the high-temperature gas from flowing toward the fan assembly 04 and causing damage to the fan assembly 04.

[0040] The air duct unit 11 may include a first area and a second area. The first area and the second area may be arranged at intervals along the diameter direction of the air duct unit 11. The first area may include an area close to the first main pipe 121 in the diameter direction of the air duct unit 11, and the second area may include an area far away from the first main pipe 121 in the diameter direction of the air duct unit 11. The cross-sectional shapes of the first area and the second area may be the same. The sum of the cross-sectional areas of the first hole portions 1222 in the first area may be greater than the sum of the cross-sectional areas of the first hole portions 1222 in the second area. The specific implementation is not limited. For example, more first hole portions 1222 may be opened in the first area, or the first hole portions 1222 distributed in the first area may adopt a larger cross-sectional area. The sum of the cross-sectional areas of the third hole portions 1232 in the first area is greater than the sum of the cross-sectional areas of the third hole portions 1232 in the second area. The specific implementation is not limited. For example, more third hole portions 1232 may be opened in the first area, or the third hole portions 1232 distributed in the first area may adopt a larger cross-sectional area. When the high-temperature gas flows through the first area and the second area, the high-temperature gas in the first area has a tendency to flow to the second area, so that under the same conditions, the flow rate of the high-temperature gas in the second area is higher. Therefore, by opening more first holes 1222 and / or third holes 1232 in the first area or making the first holes 1222 and / or third holes 1232 distributed in the first area adopt a larger cross-sectional area, the air flow out of the first area can be increased and the air flow in the second area can be reduced, so that the outflow is more uniform, and the high-temperature gas and cold air are mixed more evenly in the air duct unit 11. In other embodiments, the end of the first tube body 1221 away from the first main tube 121 can also be in a connected state with the second tube body 1231, so that both ends of the first tube body 1221 can be connected with the annular second tube body 1231, which is conducive to a more uniform flow of high-temperature gas ejected from the first hole portion 1222 and the third hole portion 1232.

[0041] In other embodiments, the first tube body 1221 and the second tube body 1231 may have a design to reduce wind resistance in structure, for example, the cross-sectional area of ​​at least part of the first tube body 1221 and at least part of the second tube body 1231 gradually increases from the side close to the fan assembly 04 toward the direction away from the fan assembly 04, so as to reduce the resistance to the gas flow in the direction of the fan assembly 04. The specific cross-sectional form is not limited and can be flexibly selected according to actual conditions. For example, the cross-sectional shape of the first tube body 1221 can be a rhombus, a fan, etc.; the cross-sectional shape of the second tube body 1231 can be a wedge, a flat triangle, etc. Figure 6 As shown, a cross-sectional form of the first tube body 1221 is represented as a rhombus, and a cross-sectional form of the second tube body 1231 is represented as a wedge.

[0042] The aircraft air mixer may include a mixing component 02, which can be used to supply high-temperature gas and cold air for uniform mixing. The mixing component 02 can be connected to the end of the air duct unit 11 away from the fan component 04, so that after the high-temperature gas is discharged from the first hole portion 1222 and the third hole portion 1232, it can enter the mixing component 02 through the air duct unit 11 together with the cold air delivered by the fan component 04 or the cold air induced by the high-temperature gas, thereby completing the mixing and obtaining gas at a suitable temperature.

[0043] The aircraft air mixer may include a diversion component 03, which may be connected to an end of the mixing component 02 away from the air duct unit 11, and may be used to divert the gas at a suitable temperature obtained by the mixing component 02 and deliver it to different components of the aircraft system for use.

[0044] In some embodiments, Figure 4 As shown, the second main pipe 122 also includes a second hole portion 1223; the first tube body 1221 is connected to the interior of the air duct unit 11 through the second hole portion 1223; the second hole portion 1223 is spaced apart on the side of the first tube body 1221 away from the fan assembly 04; the gas flowing out of the second hole portion 1223 moves in a direction away from the fan assembly 04; the angle between the flow direction of the gas flowing through the second hole portion 1223 and the axial axis of the air duct unit 11 is less than 90°; the sum of the cross-sectional areas of the second hole portions 1223 in the first region is greater than the sum of the cross-sectional areas of the second hole portions 1223 in the second region.

[0045] In this embodiment, if Figure 4As shown, the second main pipe 122 may also include a second hole portion 1223. The second hole portion 1223 may penetrate the first tube body 1221 and has a specific opening direction, and the second hole portion 1223 does not overlap with the first hole portion 1222. The first tube body 1221 is connected to the interior of the air duct unit 11 through the second hole portion 1223, so that the high-temperature gas in the first tube body 1221 can flow to the interior of the air duct unit 11 through the second hole portion 1223. By setting the second hole portion 1223 at intervals on the side of the first tube body 1221 away from the fan assembly 04, and setting the angle between the second hole portion 1223 and the axial axis of the air duct unit 11 to be less than 90°, the gas flowing out of the second hole portion 1223 can be moved in a direction away from the fan assembly 04. The specific size of the angle between the second hole portion 1223 and the axial axis of the air duct unit 11 is not limited and can be selected according to actual conditions. The sum of the cross-sectional areas of the second holes 1223 in the first region is greater than the sum of the cross-sectional areas of the second holes 1223 in the second region. The specific implementation is not limited. For example, more second holes 1223 may be provided in the first region, or the second holes 1223 distributed in the first region may adopt a larger cross-sectional area. When the high-temperature gas flows through the first region and the second region, the high-temperature gas in the first region has a tendency to flow toward the second region, so that under the same conditions, the flow rate of the high-temperature gas in the second region is higher. Therefore, by providing more second holes 1223 in the first region or making the second holes 1223 distributed in the first region adopt a larger cross-sectional area, the amount of air flowing out of the first region through the second holes 1223 can be increased, and the amount of air flowing out of the second region through the second holes 1223 can be reduced, so that the outflow of the air flow is more uniform, and the high-temperature gas and the cold air are mixed more uniformly in the air duct unit 11.

[0046] In some embodiments, 15°≤A<90°, wherein A is an angle formed by an opening direction of the second hole portion 1223 and an opening direction of the first hole portion 1222 .

[0047] In this embodiment, the angle formed by the opening direction of the second hole portion 1223 and the opening direction of the first hole portion 1222 can be greater than or equal to 15° and less than 90°, so that the high-temperature gas flows ejected through the first hole portion 1222 and the second hole portion 1223 collide with each other in the air duct unit 11, thereby improving the mixing effect with the cold air in the direction of the fan assembly 04. If the angle is too small, the high-temperature gas flows ejected through the first hole portion 1222 and the second hole portion 1223 cannot fully collide in the air duct unit 11, thereby reducing the mixing effect; if the angle is too large, the ejection effect of the high-temperature gas flows ejected through the first hole portion 1222 and the second hole portion 1223 is reduced, which is not conducive to ejecting the cold air in the direction of the fan assembly 04 into the air duct unit 11. Therefore, the opening direction of the second hole portion 1223 can be selected according to actual needs so that it has a suitable angle with the opening direction of the first hole portion 1222.

[0048] In some embodiments, Figure 4 , Figure 6 As shown, the third main pipe 123 also includes a fourth hole portion 1233; the second tube body 1231 is connected to the interior of the air duct unit 11 through the fourth hole portion 1233; the fourth hole portion 1233 is spaced apart on the side of the second tube body 1231 away from the fan assembly 04; the gas flowing out of the fourth hole portion 1233 moves in a direction away from the fan assembly 04; the angle between the flow direction of the gas flowing through the fourth hole portion 1233 and the axial axis of the air duct unit 11 is less than 90°; the sum of the cross-sectional areas of the fourth hole portions 1233 in the first area is greater than the sum of the cross-sectional areas of the fourth hole portions 1233 in the second area.

[0049] In this embodiment, if Figure 4 , Figure 6As shown, the third main pipe 123 may include a fourth hole portion 1233. The fourth hole portion 1233 may penetrate the second pipe body 1231 and has a specific opening direction, and the fourth hole portion 1233 does not overlap with the third hole portion 1232. The second pipe body 1231 may be connected to the interior of the air duct unit 11 through the fourth hole portion 1233, so that the high-temperature gas in the second pipe body 1231 may flow to the interior of the air duct unit 11 through the fourth hole portion 1233. By setting the fourth hole portion 1233 at intervals on the side of the second pipe body 1231 away from the fan assembly 04, and setting the angle between the fourth hole portion 1233 and the axial axis of the air duct unit 11 to be less than 90°, the gas flowing out of the fourth hole portion 1233 may move in a direction away from the fan assembly 04. The specific size of the angle between the fourth hole portion 1233 and the axial axis of the air duct unit 11 is not limited and can be selected according to actual conditions. The sum of the cross-sectional areas of the fourth holes 1233 in the first region may be greater than the sum of the cross-sectional areas of the fourth holes 1233 in the second region. The specific implementation is not limited. For example, more fourth holes 1233 may be provided in the first region, or the fourth holes 1233 distributed in the first region may have a larger cross-sectional area. When the high-temperature gas flows through the first region and the second region, the high-temperature gas in the first region has a tendency to flow toward the second region, so that under the same conditions, the flow rate of the high-temperature gas in the second region is higher. Therefore, by providing more fourth holes 1233 in the first region or making the fourth holes 1233 distributed in the first region have a larger cross-sectional area, the amount of air flowing out of the first region through the fourth holes 1233 can be increased, and the amount of air flowing out of the second region through the fourth holes 1233 can be reduced, so that the outflow of the air flow is more uniform, and the high-temperature gas and the cold air are mixed more uniformly in the air duct unit 11.

[0050] In some embodiments, 25°≤B<90°, where B is the angle formed by the opening direction of the fourth hole portion 1233 and the opening direction of the third hole portion 1232 .

[0051] In this embodiment, the angle formed by the opening direction of the fourth hole portion 1233 and the opening direction of the third hole portion 1232 can be greater than or equal to 25° and less than 90°, so that the high-temperature gas flows ejected through the third hole portion 1232 and the fourth hole portion 1233 collide with each other in the air duct unit 11, thereby improving the mixing effect with the cold air in the direction of the fan assembly 04. If the angle is too small, the high-temperature gas flows ejected through the first hole portion 1222 and the second hole portion 1223 cannot fully collide in the air duct unit 11, thereby reducing the mixing effect; if the angle is too large, the ejection effect of the high-temperature gas flows ejected through the third hole portion 1232 and the fourth hole portion 1233 is reduced, which is not conducive to ejecting the cold air in the direction of the fan assembly 04 into the air duct unit 11. Therefore, the opening direction of the fourth hole portion 1233 can be selected according to actual needs so that it has a suitable angle with the opening direction of the third hole portion 1232.

[0052] In some embodiments, Figure 5 , Figure 6 As shown, the ejection assembly 01 also includes a branch pipe unit 13; the branch pipe unit 13 includes a first branch pipe 131 and a second branch pipe 132; the second branch pipe 132 includes a third tube body 1321 and a fifth hole portion 1322; one end of the first branch pipe 131 passes through the air duct unit 11 and is connected to the third tube body 1321; one end of the third tube body 1321 extends in a direction away from the first branch pipe 131; the fifth hole portion 1322 is arranged at intervals on a side of the third tube body 1321 close to the fan assembly 04; the third tube body 1321 is connected to the interior of the air duct unit 11 through the fifth hole portion 1322; the gas flowing out of the fifth hole portion 1322 moves in a direction close to the fan assembly 04; the cross-sectional area of ​​the third tube body 1321 gradually increases from its side close to the fan assembly 04 toward a direction away from the fan assembly 04; the sum of the cross-sectional areas of the fifth hole portions 1322 in the first area is greater than the sum of the cross-sectional areas of the fifth hole portions 1322 in the second area.

[0053] In this embodiment, if Figure 5 , Figure 6As shown, the ejection assembly 01 may also include a branch pipe unit 13. The branch pipe unit 13 may drain part of the high-temperature and high-pressure gas, release it at a certain angle in the air duct unit 11, and mix it with the gas flow ejected from the main pipe unit 12 and the cold air entering from the direction of the fan assembly 04 to improve the air flow mixing effect. The branch pipe unit 13 may be closely combined with the air duct unit 11, fixedly connected as one, and the specific combination method adopted is not limited, and can be selected according to actual conditions, for example, it may be integrally formed by additive manufacturing, or it may be separately processed and then connected by welding or clamps, cloth-reinforced hoses, etc. Preferably, it is possible to choose to use additive manufacturing to form the air duct here, so as to better adapt to different spaces. The branch pipe unit 13 may include a first branch pipe 131 and a second branch pipe 132. The second branch pipe 132 may include a third tube body 1321 and a fifth hole portion 1322. One end of the first branch pipe 131 may be fixedly connected to the first main pipe 121, and the other end may pass through the side wall of the air duct unit 11 and communicate with one end of the third tube body 1321. The third tube body 1321 can be arranged along the radial direction of the air duct unit 11, and the other end thereof can extend in a direction away from the first branch pipe 131 until it abuts against the side wall of the air duct unit 11. The fifth hole portion 1322 has a specific direction and can penetrate the third tube body 1321, so that the third tube body 1321 can be connected with the inside of the air duct unit 11 through the fifth hole portion 1322. The fifth hole portion 1322 can be arranged at intervals on the side of the third tube body 1321 close to the fan assembly 04, so that part of the high-temperature and high-pressure gas enters the first branch pipe 131 through the first main pipe 121, and then passes through the side wall of the air duct unit 11 and enters the third tube body 1321 of the second branch pipe 132. It can be injected into the inside of the air duct unit 11 in the direction close to the fan assembly 04 through the fifth hole portion 1322, and counteracts with the high-temperature and high-pressure gas injected from the first tube body 1221 and the second tube body 1231 and the cold air entering from the direction of the air duct unit 11, which can further improve the mixing effect. The cross-sectional area of ​​at least part of the third tube 1321 gradually increases from the side close to the fan assembly 04 to the direction away from the fan assembly 04, so as to reduce the resistance to the gas flow in the direction of the fan assembly 04. The specific cross-sectional form is not limited and can be flexibly selected according to actual conditions, for example, it can be fan-shaped or diamond-shaped. Figure 6As shown, a cross-sectional form of the third tube body 1321 is represented as a diamond. The sum of the cross-sectional areas of the fifth hole portions 1322 in the first region is greater than the sum of the cross-sectional areas of the fifth hole portions 1322 in the second region. The specific implementation is not limited, for example, more fifth hole portions 1322 may be opened in the first region, or the fifth hole portions 1322 distributed in the first region may adopt a larger cross-sectional area. When the high-temperature gas flows through the first region and the second region, the high-temperature gas in the first region has a tendency to flow to the second region, so that under the same conditions, the flow rate of the high-temperature gas in the second region is higher. Therefore, by opening more fifth hole portions 1322 in the first region or making the fifth hole portions 1322 distributed in the first region adopt a larger cross-sectional area, the amount of air flowing out of the first region through the fifth hole portion 1322 can be increased, and the amount of air flowing out of the second region through the fifth hole portion 1322 can be reduced, so that the gas flow out through the fifth hole portion 1322 is more uniform, so that the high-temperature gas and the cold air are mixed more uniformly in the air duct unit 11.

[0054] In other embodiments, the projections of the third tube body 1321 and the first tube body 1221 in the axial direction of the air duct unit 11 can form an angle, and the optimal angle is equal to 90°, so as to improve the mixing effect on the gas; the third tube body 1321 can also be provided with a fifth hole 1322 in the direction away from the fan assembly 04, so that the third tube body 1321 can also play an ejection role; the number of the third tube body 1321 can also be multiple, further improving the mixing or ejection effect of the third tube body 1321. In actual use, the third tube body 1321 can be flexibly set as needed to meet the mixing effect and / or ejection effect of the branch pipe unit 13 on the gas.

[0055] In some embodiments, Figure 4 As shown, the ejection assembly 01 also includes a branch pipe unit 13; the branch pipe unit 13 includes a first branch pipe 131 and a third branch pipe 133; the third branch pipe 133 includes a fourth tube body 1331 and a sixth hole portion 1332; one end of the first branch pipe 131 passes through the side wall of the air duct unit 11 and is connected to the fourth tube body 1331; the fourth tube body 1331 is annular and is fixedly connected to the inner wall of the air duct unit 11; the fourth tube body 1331 is connected to the interior of the air duct unit 11 through the sixth hole portion 1332; the sixth hole portion 1332 is spaced apart on one side of the fourth tube body 1331 close to the fan assembly 04; the gas flowing out of the sixth hole portion 1332 moves in a direction close to the fan assembly 04; the sum of the cross-sectional areas of the sixth hole portion 1332 in the first area is greater than the sum of the cross-sectional areas of the sixth hole portion 1332 in the second area.

[0056] In this embodiment, if Figure 4As shown: the ejection assembly 01 may also include a branch pipe unit 13. The branch pipe unit 13 may be tightly combined with the air duct unit 11 and fixedly connected as a whole. The branch pipe unit 13 may include a first branch pipe 131 and a third branch pipe 133. The third branch pipe 133 may include a fourth tube body 1331 and a sixth hole portion 1332. One end of the first branch pipe 131 may be fixedly connected to the first main pipe 121, and the other end may pass through the side wall of the air duct unit 11 to communicate with the fourth tube body 1331. The fourth tube body 1331 is annular, arranged along the circumference of the air duct unit 11 and fixedly connected to the inner wall of the air duct unit 11. The sixth hole portion 1332 has a specific direction and can penetrate the fourth tube body 1331, so that the fourth tube body 1331 can be connected to the interior of the air duct unit 11 through the sixth hole portion 1332. The sixth hole portion 1332 can be arranged at intervals on the side of the fourth tube body 1331 close to the fan assembly 04, so that part of the high-temperature and high-pressure gas enters the first branch pipe 131 through the first main pipe 121, and then passes through the side wall of the air duct unit 11 to enter the fourth tube body 1331 of the third branch pipe 133. It can be injected into the air duct unit 11 in the direction close to the fan assembly 04 through the sixth hole portion 1332, and collide with the high-temperature and high-pressure gas ejected from the first tube body 1221 and the second tube body 1231 and the cold air entering from the direction of the air duct unit 11, which can further improve the mixing effect. The sum of the cross-sectional areas of the sixth hole portions 1332 in the first region is greater than the sum of the cross-sectional areas of the sixth hole portions 1332 in the second region. The specific implementation is not limited, for example, more sixth hole portions 1332 may be opened in the first region, or the sixth hole portions 1332 distributed in the first region may adopt a larger cross-sectional area. When the high-temperature gas flows through the first area and the second area, the high-temperature gas in the first area has a tendency to flow toward the second area, so that under the same conditions, the flow rate of the high-temperature gas in the second area is higher. Therefore, by opening more sixth holes 1332 in the first area or making the sixth holes 1332 distributed in the first area adopt a larger cross-sectional area, the amount of air flowing out of the first area through the sixth holes 1332 can be increased, and the amount of air flowing out of the second area through the sixth holes 1332 can be reduced, so that the gas flow out through the sixth holes 1332 is more uniform, so that the high-temperature gas and the cold air are mixed more evenly in the air duct unit 11.

[0057] In other embodiments, the cross-sectional area of ​​at least part of the fourth tube 1331 gradually increases from the side close to the fan assembly 04 to the direction away from the fan assembly 04, so as to reduce the resistance to the gas flow in the direction of the fan assembly 04. The specific cross-sectional form is not limited and can be flexibly selected according to actual conditions, for example, it can be a wedge shape, a flat triangle, etc. Figure 4 As shown, a cross-sectional form of the fourth tube 1331 is represented as a wedge shape.

[0058] In other embodiments, Figure 6 As shown, the branch pipe unit 13 may include a second branch pipe 132 and a third branch pipe 133 at the same time, so as to further improve the mixing capability of the gas.

[0059] In some embodiments, Figure 4 , Figure 6 As shown, the amount of gas discharged into the air duct unit 11 by the third main pipe 123 is greater than or equal to the amount of gas discharged into the air duct unit 11 by the second main pipe 122 .

[0060] In this embodiment, if Figure 4 , Figure 6 As shown, the amount of gas discharged into the air duct unit 11 by the third main pipe 123 is greater than or equal to the amount of gas discharged into the air duct unit 11 by the second main pipe 122. Less high-temperature and high-pressure gas is discharged from the second main pipe 122, mainly playing the role of ejecting cold air from the direction of the fan assembly 04; while more high-temperature and high-pressure gas is discharged from the third main pipe 123, mainly playing the role of mixing the high-temperature and high-pressure gas flow and the cold air flow.

[0061] In some embodiments, Figure 4 As shown, the amount of gas discharged into the air duct unit 11 by the main pipe unit 12 is greater than the amount of gas discharged into the air duct unit 11 by the branch pipe unit 13 .

[0062] In this embodiment, if Figure 4 As shown, the purpose of setting the branch pipe unit 13 is to provide a relatively small flow of high-pressure gas flow to counteract the mixed flow of high-temperature and high-pressure gas and cold air from the direction of the fan assembly 04, further increase the degree of gas turbulence, and promote the uniform mixing of the two airflows in the air duct unit 11. Therefore, the amount of gas discharged into the air duct unit 11 by the main pipe unit 12 is greater than the amount of gas discharged into the air duct unit 11 by the branch pipe unit 13. On the one hand, the gas in the air duct unit 11 can be kept to flow in a directional direction away from the fan assembly 04, and on the other hand, the branch pipe unit 13 can be used to spray high-pressure gas to further increase the degree of mixing of high-temperature and high-pressure gas and cold air in the air duct unit 11.

[0063] In some embodiments, Figure 1 , Figure 3 As shown, the diverter component 03 includes a first diverter portion 31 and a second diverter portion 32; the first diverter portion 31 and the second diverter portion 32 are spaced apart on the mixing component 02; the outer edge of the first diverter portion 31 is tangent to the outer edge of the mixing component 02 in the axial direction; one end of the first diverter portion 31 is connected to the mixing component 02, and the other end extends in a direction away from the mixing component 02; the outer edge of the second diverter portion 32 is tangent to the outer edge of the mixing component 02 in the axial direction; one end of the second diverter portion 32 is connected to the mixing component 02, and the other end extends in a direction away from the mixing component 02.

[0064] In this embodiment, if Figure 1 , Figure 3 As shown, the flow splitter assembly 03 includes a first flow splitter 31 and a second flow splitter 32, and the first flow splitter 31 and the second flow splitter 32 are arranged at intervals on the mixing assembly 02, so as to facilitate the flow splitting and guiding of the mixed gas for different purposes. The outer edge of the first flow splitter 31 can be tangent to the outer edge of the mixing assembly 02 in the axial direction, so that the first flow splitter 31 can be arranged along the tangent direction of the circumference of the mixing assembly 02, so that the mixed gas can enter the first flow splitter 31 from the mixing assembly 02 in a vortex manner, which can further improve the mixing degree of the gas. One end of the first flow splitter 31 can be connected to the mixing assembly 02, and the other end can extend in a direction away from the mixing assembly 02, so that the mixed gas can be output to a specified component. The outer edge of the second flow splitter 32 can be tangent to the outer edge of the mixing assembly 02 in the axial direction, so that the second flow splitter 32 can be arranged along the tangent direction of the circumference of the mixing assembly 02, so that the mixed gas can enter the second flow splitter 32 from the mixing assembly 02 in a vortex manner, which can further improve the mixing degree of the gas. One end of the second flow dividing portion 32 may be in communication with the mixing assembly 02 , and the other end may extend in a direction away from the mixing assembly 02 , so as to output the mixed gas to another designated component.

[0065] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present disclosure.

Claims

1. An aircraft air mixer, characterized in that: The aircraft air mixer comprises: A fan assembly, the fan assembly is used to supply gas; The exhaust fan of the present invention is connected with the exhaust fan of the present invention, and the exhaust fan of the present invention is connected with the exhaust fan of the present invention. The tube body is connected with the interior of the air duct unit through the third hole portion; the third hole portion is arranged at intervals on the side of the second tube body away from the fan assembly; the gas flowing out of the third hole portion moves in the direction away from the fan assembly; the angle between the flow direction of the gas flowing through the third hole portion and the axial axis of the air duct unit is less than 90°; the air duct unit includes a first area and a second area; the first area and the second area are arranged at intervals along the diameter direction of the air duct unit; the first area includes an area close to the first main pipe in the diameter direction of the air duct unit; the second area includes an area away from the first main pipe in the diameter direction of the air duct unit; the cross-sectional shape of the first area and the second area is the same; the sum of the cross-sectional areas of the first hole portions in the first area is greater than the sum of the cross-sectional areas of the first hole portions in the second area; the sum of the cross-sectional areas of the third hole portions in the first area is greater than the sum of the cross-sectional areas of the third hole portions in the second area; A mixing assembly, the mixing assembly being in communication with an end of the air duct unit away from the fan assembly; A flow splitter assembly is connected to an end of the mixing assembly away from the air duct unit.

2. An aircraft air mixer according to claim 1, characterized in that: The second main pipe also includes a second hole portion; the first tube body is connected to the interior of the air duct unit through the second hole portion; the second hole portion is spaced apart on the side of the first tube body away from the fan assembly; the gas flowing out of the second hole portion moves in a direction away from the fan assembly; the angle between the flow direction of the gas flowing through the second hole portion and the axial axis of the air duct unit is less than 90°; the sum of the cross-sectional areas of the second hole portions in the first area is greater than the sum of the cross-sectional areas of the second hole portions in the second area.

3. An aircraft air mixer according to claim 2, characterized in that: 15°≤A<90°, wherein A is the angle formed by the opening direction of the second hole portion and the opening direction of the first hole portion.

4. An aircraft air mixer according to claim 1, characterized in that: The third main pipe also includes a fourth hole portion; the second tube body is connected to the interior of the air duct unit through the fourth hole portion; the fourth hole portion is spaced apart on the side of the second tube body away from the fan assembly; the gas flowing out of the fourth hole portion moves in a direction away from the fan assembly; the angle between the flow direction of the gas flowing through the fourth hole portion and the axial axis of the air duct unit is less than 90°; the sum of the cross-sectional areas of the fourth hole portions in the first area is greater than the sum of the cross-sectional areas of the fourth hole portions in the second area.

5. An aircraft air mixer according to claim 4, characterized in that: 25°≤B<90°, wherein B is the angle formed by the opening direction of the fourth hole portion and the opening direction of the third hole portion.

6. An aircraft air mixer according to claim 1, characterized in that: The ejection assembly also includes a branch pipe unit; the branch pipe unit includes a first branch pipe and a second branch pipe; the second branch pipe includes a third tube body and a fifth hole portion; one end of the first branch pipe passes through the air duct unit and is connected to the third tube body; one end of the third tube body extends in a direction away from the first branch pipe; the fifth hole portion is arranged at intervals on a side of the third tube body close to the fan assembly; the third tube body is connected to the interior of the air duct unit through the fifth hole portion; the gas flowing out of the fifth hole portion moves in a direction close to the fan assembly; the cross-sectional area of ​​the third tube body gradually increases from its side close to the fan assembly toward a direction away from the fan assembly; the sum of the cross-sectional areas of the fifth hole portions in the first area is greater than the sum of the cross-sectional areas of the fifth hole portions in the second area.

7. An aircraft air mixer according to claim 1, characterized in that: The ejection assembly also includes a branch pipe unit; the branch pipe unit includes a first branch pipe and a third branch pipe; the third branch pipe includes a fourth tube body and a sixth hole portion; one end of the first branch pipe passes through the side wall of the air duct unit and is connected to the fourth tube body; the fourth tube body is annular and is fixedly connected to the inner wall of the air duct unit; the fourth tube body is connected to the interior of the air duct unit through the sixth hole portion; the sixth hole portion is spaced apart on a side of the fourth tube body close to the fan assembly; the gas flowing out of the sixth hole portion moves toward the direction close to the fan assembly; the sum of the cross-sectional areas of the sixth hole portions in the first area is greater than the sum of the cross-sectional areas of the sixth hole portions in the second area.

8. An aircraft air mixer according to claim 1, characterized in that: The amount of gas discharged into the air duct unit by the third main pipe is greater than or equal to the amount of gas discharged into the air duct unit by the second main pipe.

9. An aircraft air mixer according to claim 6 or 7, characterized in that: The amount of gas discharged from the main pipe unit into the air duct unit is greater than the amount of gas discharged from the branch pipe unit into the air duct unit.

10. An aircraft air mixer according to claim 1, characterized in that: The diverter assembly includes a first diverter portion and a second diverter portion; the first diverter portion and the second diverter portion are spaced apart on the mixing assembly; the outer edge of the first diverter portion is tangent to the outer edge of the mixing assembly in the axial direction; one end of the first diverter portion is connected to the mixing assembly, and the other end extends in a direction away from the mixing assembly; the outer edge of the second diverter portion is tangent to the outer edge of the mixing assembly in the axial direction; one end of the second diverter portion is connected to the mixing assembly, and the other end extends in a direction away from the mixing assembly.

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