CN216861832U - Air distribution device with passive recirculation function - Google Patents
Air distribution device with passive recirculation function Download PDFInfo
- Publication number
- CN216861832U CN216861832U CN202220401821.6U CN202220401821U CN216861832U CN 216861832 U CN216861832 U CN 216861832U CN 202220401821 U CN202220401821 U CN 202220401821U CN 216861832 U CN216861832 U CN 216861832U
- Authority
- CN
- China
- Prior art keywords
- air
- cover shell
- venturi tube
- distribution device
- inner cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to an air distribution device with passive recirculation function, belonging to the technical field of airplane environment-controlled air supply distribution devices, the air distribution device comprises a venturi tube, an inner cover shell and an outer cover shell covering the inner cover shell, an air return channel is arranged between the outer cover shell and the inner cover shell at intervals, two ends of the venturi tube are respectively connected with and penetrate through the bottom ends of the outer cover shell and the inner cover shell, the side wall of the venturi tube is provided with a plurality of recirculation air suction holes communicated with the air return channel, by adopting the structure, the venturi tube is arranged to communicate the outer cover shell and the inner cover shell, the air return channel is arranged between the outer cover shell and the inner cover shell at intervals, local negative pressure can be formed when the airplane environment-controlled air supply passes through the venturi tube, so that the air in a suction cabin enters the venturi tube through the air return channel to be mixed with the environment-controlled air supply and participate in the distribution again, the purpose of unpowered source recirculation is achieved, and the flow rate of the cabin air supply is increased, the flow field in the cabin is improved, the temperature difference between the air supply temperature and the temperature in the cabin is reduced, and the temperature field of the air in the cabin is improved.
Description
Technical Field
The utility model belongs to the technical field of airplane environment-controlled air supply distribution devices, and particularly relates to an air distribution device with a passive recirculation function.
Background
At present, the conventional air distribution port of the aircraft in the domestic aviation field adopts direct air supply, when in a refrigerating state, the temperature of a cabin is higher, the temperature of airflow at the air distribution outlet is lower, and when the airflow meets the situation that hot air in the cabin is easy to form condensation, the phenomena of water spraying and the like are caused, and the adverse consequences of water accumulation and the like are caused.
Therefore, an air distribution device with passive recirculation function, which can increase the airflow velocity, reduce the temperature difference between the inside and the outside and improve the temperature field in the cabin, is in urgent need to appear
SUMMERY OF THE UTILITY MODEL
The utility model provides an air distribution device with a passive recirculation function, which is used for solving the technical problems that condensation and water accumulation are easy to occur when the conventional air distribution port of an airplane directly supplies air in the prior art.
The utility model is realized by the following technical scheme: the air distribution device with the passive recirculation function comprises a venturi tube, an inner cover shell and an outer cover shell covering the inner cover shell, wherein the inner cover shell and the outer cover shell are both U-shaped covers, the opening ends of the covers are in the same direction, a return air channel is arranged between the outer cover shell and the inner cover shell at intervals, two ends of the venturi tube are respectively connected with and penetrate through the bottom ends of the outer cover shell and the inner cover shell, a plurality of recirculation air suction holes are formed in the side wall of the venturi tube, and the recirculation air suction holes are communicated with the return air channel.
In order to better realize the utility model, the structure is further optimized, the venturi tube type air-conditioning system further comprises an end cover, the end cover is a U-shaped cover, the cover opening end of the end cover is connected with the cover bottom end of the outer cover shell and communicated with the venturi tube, the cover bottom end of the end cover is provided with an air inlet, and the end cover and the cover bottom end of the outer cover shell are surrounded to form an air gathering cavity.
In order to better realize the utility model, the structure is further optimized, and the air inlet device further comprises an air inlet pipe, wherein one end of the air inlet pipe is communicated with the air inlet, and the other end of the air inlet pipe is communicated with an airplane environment-controlled air supply system.
In order to better realize the utility model, the structure is further optimized, and the air outlet grid is arranged at the cover opening end of the inner cover shell and forms a pressure stabilizing cavity with the inner cover shell in an enclosing way.
In order to better implement the present invention, the structure further includes a diffusing grid disposed in the inner casing, the diffusing grid is disposed in parallel with the air outlet grid in the vertical direction, and the diffusing grid is disposed in a cross manner with the air outlet grid in the horizontal direction.
In order to better implement the utility model, the structure is further optimized, and the number of the diffusion grids is one or more layers.
In order to better implement the utility model, the structure is further optimized, the number of the venturis is multiple, and the venturis are distributed in a rectangular array.
In order to better realize the utility model, the structure is further optimized, the section of the venturi tube is rectangular, the bottom ends of the inner cover shell and the outer cover shell are respectively provided with a rectangular hole, and two ends of the venturi tube penetrate through the bottom ends of the inner cover shell and the outer cover shell through the rectangular holes.
In order to better implement the utility model, the above structure is further optimized, and the cover opening ends of the inner cover shell and the outer cover shell are expanded outwards to form a bell mouth shape.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides an air distribution device with passive recirculation function, which comprises a venturi, an inner cover shell and an outer cover shell covering the inner cover shell, wherein the inner cover shell and the outer cover shell are both U-shaped covers, the opening ends of the covers are in the same direction, a return air channel is arranged between the outer cover shell and the inner cover shell at intervals, two ends of the venturi are respectively connected with and penetrate through the bottom ends of the outer cover shell and the inner cover shell, the side wall of the venturi is provided with a plurality of recirculation air suction holes which are communicated with the return air channel, by adopting the structure, the outer cover shell and the inner cover shell are communicated by arranging the venturi, the return air channel is arranged between the outer cover shell and the inner cover shell at intervals, and the air control of an airplane can form local negative pressure when passing through the venturi, so that the air in a suction cabin enters the venturi through the return air channel to be mixed with the environment-controlled air supply and participate in distribution again, the aim of unpowered source recirculation is fulfilled, and the flow rate of air supply in the cabin is increased, the flow field in the cabin is improved, the temperature difference between the air supply temperature and the temperature in the cabin is reduced, the temperature field of the air in the cabin is improved, and the phenomenon that accumulated water is formed due to condensation at the air outlet is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a longitudinal cross-sectional view of an air distribution device with passive recirculation in accordance with the present invention;
FIG. 2 is a perspective view of an air distribution device with passive recirculation in accordance with the present invention;
fig. 3 is a cross-sectional view of an air distribution device with passive recirculation in accordance with the present invention.
In the figure:
1-a venturi; 11-recirculating suction holes; 2-inner cover shell; 21-a pressure stabilizing cavity; 3-an outer housing; 4-return air channel; 5-end shield; 51-an air inlet; 52-a wind gathering cavity; 6-an air inlet pipe; 7-air outlet grids; 8-a grid for diffusion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
Example 1:
in this embodiment, an air distribution device with a passive recirculation function, as shown in fig. 1 to 3, includes a venturi 1, an inner casing 2, and an outer casing 3 covering the inner casing 2, specifically, the inner casing 2 and the outer casing 3 are both U-shaped covers with their cover openings facing in the same direction, an air return channel 4 is provided between the outer casing 3 and the inner casing 2, two ends of the venturi 1 are respectively connected to and penetrate through the cover bottom ends of the outer casing 3 and the inner casing 2, an aircraft environment-controlled air supply can enter from the cover bottom end of the outer casing 3 and enter into the inner casing 2 through the venturi 1, and forms a local negative pressure at the throat of the venturi 1, the side wall of the venturi 1 is provided with a plurality of recirculation air intake holes 11, the recirculation air intake holes 11 are communicated with the air return channel 4, the local negative pressure formed at the throat of the venturi 1 serves as a power source to form a circulation function, air in the cabin can be sucked and compensated into the venturi tube 1 through the air return channel 4 and the recirculation air suction hole 11, and the air and the environment-controlled air supply of the airplane are mixed again, enter the inner casing 2 and are discharged from the cover opening end of the inner casing 2.
By adopting the structure, the venturi tube 1 is arranged to communicate the outer housing 3 and the inner housing 2, the air return channel 4 is arranged between the outer housing 3 and the inner housing 2 at intervals, and the aircraft environment-controlled air supply can form local negative pressure when passing through the venturi tube 1, so that air in a suction cabin enters the venturi tube 1 through the air return channel 4 to be mixed with the environment-controlled air supply and participates in distribution again, the aim of power source-free recirculation is fulfilled, a conventional recirculation fan is avoided, the flow velocity of air supplied into the cabin is increased, the flow field in the cabin is improved, the temperature difference between the air supply temperature and the temperature in the cabin is reduced, the temperature field of the air in the cabin is improved, and the phenomenon that the moisture condensation at an air outlet forms accumulated water is avoided.
In this embodiment, as shown in fig. 1 and fig. 2, the aircraft further includes an end shield 5, where the end shield 5 is a U-shaped shield, the end shield 5 and the outer housing 3 are of an integrated structure, a cover opening end of the end shield 5 is connected with a cover bottom end of the outer housing 3 and is communicated with the venturi tube 1, the inner housing 2 and the end shield 5 are communicated through two ends of the venturi tube 1, an air inlet 51 is disposed at a cover bottom end of the end shield 5, the end shield 5 and the cover bottom end of the outer housing 3 are enclosed to form an air collecting cavity 52, the air inlet 51 is used for being communicated with an air outlet end of an aircraft environment-controlled air supply system, and environment-controlled air supply is collected into the air collecting cavity 52 through the air inlet 51, so that the environment-controlled air supply passes through the venturi tube 1 after being stabilized, thereby improving a flow field in the housing.
Preferably, the air inlet pipe comprises an air inlet pipe 6, one end of the air inlet pipe 6 is communicated with the air inlet 51, the other end of the air inlet pipe 6 is communicated with an airplane environment control air supply system, and the connection position of the air inlet pipe 6 and the outer housing 3 needs to be sealed.
Example 2:
in this embodiment, an air distribution device with a passive recirculation function, as shown in fig. 1 to 3, includes a venturi 1, an inner casing 2, and an outer casing 3 covering the inner casing 2, specifically, the inner casing 2 and the outer casing 3 are both U-shaped covers with their cover openings facing in the same direction, an air return channel 4 is provided between the outer casing 3 and the inner casing 2, two ends of the venturi 1 are respectively connected to and penetrate through the cover bottom ends of the outer casing 3 and the inner casing 2, an aircraft environment-controlled air supply can enter from the cover bottom end of the outer casing 3 and enter into the inner casing 2 through the venturi 1, and forms a local negative pressure at the throat of the venturi 1, the side wall of the venturi 1 is provided with a plurality of recirculation air intake holes 11, the recirculation air intake holes 11 are communicated with the air return channel 4, the local negative pressure formed at the throat of the venturi 1 serves as a power source to form a circulation function, air in the cabin can be sucked and compensated into the venturi tube 1 through the air return channel 4 and the recirculation air suction hole 11, and the air and the environment-controlled air supply of the airplane are mixed again, enter the inner casing 2 and are discharged from the cover opening end of the inner casing 2.
In this embodiment, as shown in fig. 1 and fig. 2, the aircraft further includes an end shield 5, where the end shield 5 is a U-shaped shield, the end shield 5 and the outer housing 3 are of an integrated structure, a cover opening end of the end shield 5 is connected with a cover bottom end of the outer housing 3 and is communicated with the venturi tube 1, the inner housing 2 and the end shield 5 are communicated through two ends of the venturi tube 1, an air inlet 51 is disposed at a cover bottom end of the end shield 5, the end shield 5 and the cover bottom end of the outer housing 3 are enclosed to form an air collecting cavity 52, the air inlet 51 is used for being communicated with an air outlet end of an aircraft environment-controlled air supply system, and environment-controlled air supply is collected into the air collecting cavity 52 through the air inlet 51, so that the environment-controlled air supply passes through the venturi tube 1 after being stabilized, thereby improving a flow field in the housing.
Preferably, as shown in fig. 1, the aircraft environmental control air supply system further comprises an air inlet pipe 6, one end of the air inlet pipe 6 is communicated with the air inlet 51, the other end of the air inlet pipe 6 is communicated with the aircraft environmental control air supply system, and the connection position of the air inlet pipe 6 and the outer housing 3 needs to be sealed.
In this embodiment, the air outlet grid 7 is further included, the air outlet grid 7 is arranged at the cover opening end of the inner casing 2, the air outlet grid 7 and the inner casing 2 are surrounded to form a pressure stabilizing cavity 21, the pressure stabilizing cavity 21 enables the environment-controlled air supply through the venturi tube 1 to be more stable, noise is reduced, the environment-controlled air supply evenly passes through the air outlet grid 7, and the air outlet speed is even and stable.
Further, as shown in fig. 1, the air supply system further comprises a diffusing grid 8, the diffusing grid 8 is arranged in parallel with the air outlet grid 7 in the vertical direction, the diffusing grid 8 is arranged in a cross manner with the air outlet grid 7 in the horizontal direction, and the diffusing grid 8 plays a diffusing role, so that the environment-controlled air supply entering the pressure stabilizing cavity 21 is uniformly dispersed, a turbulent field is avoided, and the air supply transportation is stable.
In this embodiment, the air outlet grid 7 and the air diffusing grid 8 are both composed of a plurality of parallel and spaced grid bars.
Preferably, the number of the diffusing grids 8 is one or more layers, and the diffusing grids 8 arranged in multiple layers have stronger diffusing and voltage stabilizing effects.
As a more preferred embodiment of this embodiment, as shown in fig. 3, the number of the venturi 1 is plural, the plural venturi 1 are distributed in a rectangular array, the recirculation air intake hole 11 on each venturi 1 is communicated with the return air channel 4, each venturi 1 can form an independent local negative pressure, which enhances the source power of recirculation, so that more cabin air can circulate into the return air channel 4, further increases the flow rate of the air flow supplied into the cabin, improves the flow field in the cabin, reduces the temperature difference between the supplied air temperature and the cabin temperature, and improves the temperature field of the cabin air.
In this embodiment, as shown in fig. 3, the venturi 1 has a rectangular cross-sectional shape, rectangular holes are formed at the bottom ends of the inner housing 2 and the outer housing 3, and both ends of the venturi 1 penetrate the bottom ends of the inner housing 2 and the outer housing 3 through the rectangular holes, wherein the recirculation suction holes 11 are formed at each of four side walls of the venturi 1, five recirculation suction holes 11 are formed at each of wider opposite side walls, and one recirculation suction hole 11 is formed at each of narrower opposite side walls, thereby ensuring smooth circulation of the air flow.
In this embodiment, as shown in fig. 1, the mouth ends of the inner casing 2 and the outer casing 3 are expanded outwards to form a bell mouth, so that the air outlet area is increased, and the air outlet is more uniform and smooth.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. An air distribution device with passive recirculation, characterized by: the air return device comprises a venturi tube, an inner cover shell and an outer cover shell covering the inner cover shell, wherein the inner cover shell and the outer cover shell are both U-shaped covers, the opening ends of the covers are in the same direction, an air return channel is arranged between the outer cover shell and the inner cover shell at intervals, two ends of the venturi tube are respectively connected with and penetrate through the bottom ends of the outer cover shell and the inner cover shell, a plurality of recirculation air suction holes are formed in the side wall of the venturi tube, and the recirculation air suction holes are communicated with the air return channel.
2. An air distribution device with passive recirculation according to claim 1, characterized in that: the venturi tube type air collector further comprises an end cover, the end cover is a U-shaped cover, the cover opening end of the end cover is connected with the cover bottom end of the outer cover shell and communicated with the venturi tube, an air inlet is formed in the cover bottom end of the end cover, and the end cover and the cover bottom end of the outer cover shell are surrounded to form an air collecting cavity.
3. An air distribution device with passive recirculation according to claim 2, characterized in that: the aircraft air supply system further comprises an air inlet pipe, wherein one end of the air inlet pipe is communicated with the air inlet, and the other end of the air inlet pipe is communicated with the aircraft environment-controlled air supply system.
4. An air distribution device with passive recirculation according to claim 1, characterized in that: the air outlet grid is arranged at the cover opening end of the inner cover shell, and the air outlet grid and the inner cover shell are surrounded to form a voltage stabilizing cavity.
5. An air distribution device with passive recirculation according to claim 4, characterized in that: the air outlet device is characterized by further comprising a flow scattering grid, wherein the flow scattering grid is arranged in parallel with the air outlet grid in the vertical direction, and the flow scattering grid is arranged in a cross mode with the air outlet grid in the horizontal direction.
6. An air distribution device with passive recirculation according to claim 5, characterized in that: the number of the flow scattering grids is one layer or multiple layers.
7. An air distribution device with passive re-circulation function according to any of claims 1-6, characterized in that: the number of the venturis is multiple, and the venturis are distributed in a rectangular array.
8. An air distribution device with passive recirculation according to claim 7, characterized in that: the venturi tube is rectangular in cross section, rectangular holes are formed in the bottom ends of the inner cover shell and the outer cover shell, and two ends of the venturi tube penetrate through the bottom ends of the inner cover shell and the outer cover shell through the rectangular holes.
9. An air distribution device with passive recirculation according to claim 8, characterized in that: the cover mouth ends of the inner cover shell and the outer cover shell are expanded outwards to form a bell mouth shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401821.6U CN216861832U (en) | 2022-02-25 | 2022-02-25 | Air distribution device with passive recirculation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401821.6U CN216861832U (en) | 2022-02-25 | 2022-02-25 | Air distribution device with passive recirculation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216861832U true CN216861832U (en) | 2022-07-01 |
Family
ID=82161303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220401821.6U Active CN216861832U (en) | 2022-02-25 | 2022-02-25 | Air distribution device with passive recirculation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216861832U (en) |
-
2022
- 2022-02-25 CN CN202220401821.6U patent/CN216861832U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214728276U (en) | Charging pile | |
| CN216709050U (en) | Waterproof heat radiation structure, waterproof cooling system and fill electric pile | |
| CN216861832U (en) | Air distribution device with passive recirculation function | |
| CN114408189A (en) | Air distribution device with passive recirculation function | |
| CN213713285U (en) | Ceiling machine and air conditioner | |
| CN113183799A (en) | Charging pile | |
| CN215650968U (en) | Condensation structure of dish washing machine | |
| CN210141650U (en) | Indoor unit of air conditioner | |
| CN218275732U (en) | Fully-buried prefabricated substation | |
| CN213955467U (en) | Integral air conditioner | |
| CN213955469U (en) | Integral air conditioner | |
| CN213807829U (en) | Multiple protection wind scooper for mechanical equipment | |
| CN213955471U (en) | Integral air conditioner | |
| CN213453907U (en) | Air conditioner indoor unit and air conditioner | |
| CN108800321B (en) | Indoor unit of air conditioner and air conditioner | |
| CN210970593U (en) | Water collector subassembly and car as a house air conditioner indoor unit | |
| CN209358423U (en) | Frequency converter | |
| CN111561742A (en) | Humidifying device for air conditioner and air conditioner | |
| CN209283081U (en) | Frequency converter | |
| CN209877125U (en) | Humidifying device for air conditioner and air conditioner | |
| CN217685274U (en) | Annular air outlet fan heater | |
| CN207262559U (en) | Air conditioner | |
| CN205919479U (en) | Air inlet structure with double centrifugal fans and air conditioner with air inlet structure | |
| CN214198939U (en) | Integral air conditioner | |
| CN212227451U (en) | Slice ice maker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |