CN217819284U

CN217819284U - Air suction type single-backflow low-noise meteorological direct-current wind tunnel

Info

Publication number: CN217819284U
Application number: CN202221527782.0U
Authority: CN
Inventors: 付亚; 王杰; 王辉; 汪海洲; 徐迎杰
Original assignee: Suzhou 3d Fluid Technology Co ltd
Current assignee: Suzhou 3d Fluid Technology Co ltd
Priority date: 2022-06-18
Filing date: 2022-06-18
Publication date: 2022-11-15
Anticipated expiration: 2032-06-18

Abstract

The utility model is suitable for a wind-tunnel technical field discloses a formula of breathing in single backward flow low noise meteorological direct current wind-tunnel, and it includes the wind-tunnel, the inside left side of wind-tunnel is fixed with the frame, and the terminal of frame and the fixed butt joint of the outer wall of aircraft bonnet, the inside parcel of aircraft bonnet has the sound absorption pad, the air channel has been seted up to the inside of aircraft bonnet, and the inner wall of air channel installs the suction fan, the inside right side of wind-tunnel is provided with the section of thick bamboo of making an uproar that falls, and falls the inside of the section of thick bamboo of making an uproar and seted up the tube seat, the inner wall evenly distributed in tube seat is fixed with the air current baffle. The utility model discloses a be provided with the cooperation installation use of making an uproar section of thick bamboo and sound absorption pad of making an uproar, the section of thick bamboo of making an uproar that falls will do benefit to and offset the noise of making an uproar to the sound wave noise, and the sound absorption pad directly absorbs the noise that the suction fan during operation produced, the noise pollution that produces during the greatly reduced wind-tunnel detection.

Description

Air suction type single-backflow low-noise meteorological direct-current wind tunnel

Technical Field

The utility model is suitable for a wind-tunnel technical field especially relates to a formula of breathing in single backward flow low noise meteorological direct current wind-tunnel.

Background

At present, a wind tunnel, i.e. a wind tunnel laboratory, is a pipeline-shaped experimental device which is used for generating and controlling airflow in a manual mode, is used for simulating the flowing condition of air around an aircraft or an entity, can measure the action effect of the airflow on the entity and observe physical phenomena, and is one of the most common and effective tools for carrying out aerodynamic experiments.

When a fan operates, the noise in the wind tunnel is high, and the influence of the noise on the surrounding environment and people is not considered in the conventional wind tunnel, so that the noise is overlarge, noise pollution is generated, and in order to solve the problems in the prior art, the air suction type single-backflow low-noise meteorological direct current wind tunnel is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of formula of breathing in single backward flow low noise meteorological direct current wind-tunnel uses through the cooperation installation that is provided with the noise reduction section of thick bamboo and sound absorption pad, and the noise reduction section of thick bamboo that falls will do benefit to and offset and fall the noise to the sound wave noise, and the sound absorption pad directly absorbs the noise that the suction fan during operation produced, and the noise pollution that produces during the greatly reduced wind-tunnel detects has solved the problem that proposes in the background art.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a formula of breathing in single backward flow low noise meteorological direct current wind-tunnel, includes the wind-tunnel, the inside left side of wind-tunnel is fixed with the frame, and the fixed butt joint of the terminal outer wall with the aircraft bonnet of frame, the inside parcel of aircraft bonnet has the sound absorbing pad, the air channel has been seted up to the inside of aircraft bonnet, and the inner wall of air channel installs the suction fan, the inside right side of wind-tunnel is provided with and falls a section of thick bamboo of making an uproar, and falls the inside of a section of thick bamboo of making an uproar and seted up a section of thick bamboo groove, the inner wall evenly distributed in section of thick bamboo groove is fixed with airflow baffle.

Preferably, the airflow baffle is installed in a manner of inclining to the left.

Preferably, the left side of the hood penetrates through the left side of the wind tunnel, and the right end of the hood is communicated with the left side of the noise reduction cylinder.

Preferably, the inner wall of the sound absorption pad is uniformly provided with sound absorption holes, and the sound absorption pad is made of foam materials.

Preferably, the noise reduction cylinder and the airflow baffle are made of rubber materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a be provided with the cooperation installation use of making an uproar section of thick bamboo and sound absorption pad of making an uproar, the section of thick bamboo of making an uproar that falls will do benefit to and offset the noise of making an uproar to the sound wave noise, and the sound absorption pad directly absorbs the noise that the suction fan during operation produced, the noise pollution that produces during the greatly reduced wind-tunnel detection.

Drawings

FIG. 1 is a schematic view of the overall structure of an air-breathing single-backflow low-noise meteorological DC wind tunnel according to the present invention;

FIG. 2 is a schematic view of the internal structure of a suction-type single-backflow low-noise meteorological DC wind tunnel according to the present invention;

fig. 3 is the utility model provides a suction pad structure sketch map of formula of breathing in single backward flow low noise meteorological direct current wind-tunnel.

In the figure: 1. a wind tunnel; 2. a frame; 3. a hood; 4. a vent channel; 5. a noise reduction cylinder; 6. a barrel groove; 7. an airflow baffle; 8. a suction fan; 9. a sound absorbing pad; 10. the sound absorbing hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in provide with the model of electrical apparatus only refer to, can be through changing the different models that the function is the same according to the in-service use condition with electrical apparatus, to the ordinary technical personnel in this field, can understand above-mentioned term according to particular case and be in the utility model provides a concrete meaning.

Referring to fig. 1-3, a formula of breathing in single backward flow low noise meteorological direct current wind-tunnel, including wind-tunnel 1, the inside left side of wind-tunnel 1 is fixed with frame 2, and the fixed butt joint of the outer wall of the terminal of frame 2 and aircraft bonnet 3, the inside parcel of aircraft bonnet 3 has sound absorbing pad 9, air channel 4 has been seted up to the inside of aircraft bonnet 3, and air channel 4's inner wall installs suction fan 8, the inside right side of wind-tunnel 1 is provided with and falls a section of thick bamboo 5 of making an uproar, and falls the inside of a section of thick bamboo 5 of making an uproar and seted up a section of thick bamboo groove 6, the inner wall evenly distributed of a section of thick bamboo groove 6 is fixed with air baffle 7, in this embodiment, through being provided with the cooperation installation of falling a section of thick bamboo 5 of making an uproar and sound absorbing pad 9, falls a section of thick bamboo 5 of making an uproar and will do benefit to offset the sound wave noise and fall, and the noise that sound absorbing pad 9 directly absorbs the noise that the suction fan 8 during operation produced pollutes when greatly reduced wind-tunnel 1 detects.

In this embodiment, the airflow baffle 7 is installed in a left-inclined manner, which is beneficial to counteracting the sound wave noise generated in the wind tunnel 1.

In this embodiment, the left side of the hood 3 penetrates through the left side of the wind tunnel 1, and the right end of the hood 3 is communicated with the left side of the noise reduction cylinder 5.

In this embodiment, the inner wall of the sound absorption pad 9 is uniformly provided with sound absorption holes 10, the sound absorption pad 9 is made of foam, and the sound absorption pad 9 and the sound absorption holes 10 are matched for use, so that the noise generated by the suction fan 8 can be absorbed and reduced directly, and the transmission of noise is reduced.

In this embodiment, the noise reduction cylinder 5 and the airflow baffle 7 are made of rubber.

The utility model discloses during the use: the suction fan 8 is located aircraft bonnet 3 during operation, produce suction and be located 1 interior work of wind-tunnel, when gas is located 1 interior flow of wind-tunnel, gas will be at first through the section of thick bamboo 5 of making an uproar, the air current plate washer that the 5 inner walls of the section of thick bamboo of making an uproar set up, air current plate washer 7 will block the sound wave of transmission and offset, and reduce the transmission of sound wave, 4 parcel of air duct in aircraft bonnet 3 have the sound pad 9 of inhaling simultaneously, and inhale the sound hole 10 of evenly having seted up on the surface of sound pad 9, will do benefit to and form the efficient absorption to the direct noise that the suction fan 8 produced, thereby the noise pollution that produces when greatly reduced wind-tunnel 1 moves, the design is simple, and is practical.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a formula of breathing in single backward flow low noise meteorological direct current wind-tunnel, a serial communication port, including wind-tunnel (1), wind-tunnel (1) inside left side is fixed with frame (2), and the fixed butt joint of outer wall of the terminal of frame (2) and aircraft bonnet (3), the inside parcel of aircraft bonnet (3) has sound absorbing pad (9), air duct (4) have been seted up to the inside of aircraft bonnet (3), and the inner wall of air duct (4) installs suction fan (8), the inside right side of wind-tunnel (1) is provided with and falls a section of thick bamboo (5) of making an uproar, and falls the inside of a section of thick bamboo (5) of making an uproar and seted up a section of thick bamboo groove (6), the inner wall evenly distributed of a section of thick bamboo groove (6) is fixed with air baffle (7).

2. An air-breathing single-return-flow low-noise meteorological dc wind tunnel according to claim 1, characterized in that the air flow baffle (7) is installed with a left-inclined angle.

3. The air-breathing single-backflow low-noise meteorological direct-current wind tunnel according to claim 1, characterized in that the left side of the hood (3) penetrates through the left side of the wind tunnel (1), and the right end of the hood (3) is communicated with the left side of the noise reduction cylinder (5).

4. The air-breathing single-backflow low-noise meteorological direct-current wind tunnel according to claim 1, characterized in that sound-absorbing holes (10) are uniformly formed in the inner wall of the sound-absorbing pad (9), and the sound-absorbing pad (9) is made of foam.

5. The air-breathing single-backflow low-noise meteorological direct-current wind tunnel according to claim 1, wherein the noise reduction cylinder (5) and the airflow baffle (7) are made of rubber.