CN222558807U

CN222558807U - A kind of air outlet tube capable of reducing noise based on fan operation

Info

Publication number: CN222558807U
Application number: CN202421032342.7U
Authority: CN
Inventors: 刘晶; 陈锋; 李大俭; 邹立军; 杨亚军; 张文秀
Original assignee: Sunite Jinxi Gold Mining Industry Co ltd
Current assignee: Sunite Jinxi Gold Mining Industry Co ltd
Priority date: 2024-05-13
Filing date: 2024-05-13
Publication date: 2025-03-04
Anticipated expiration: 2034-05-13

Abstract

The utility model relates to the technical field of ventilation noise reduction, and discloses an air outlet duct which can reduce noise based on the operation of a fan, including a connecting air duct, a duct expansion section is fixedly connected to one side of the connecting air duct, a muffler is fixedly connected to the side of the duct expansion section away from the connecting air duct, a damper hood is fixedly connected to the side away from the duct expansion section, an end of the damper hood away from the muffler is fixedly connected to an air outlet buffer pipe, an air outlet duct is fixedly connected to the upper surface of the air outlet buffer pipe, and the lower ends of the sides of the connecting air duct and the muffler are fixedly connected to a fixing frame, and also includes a noise reduction device, which is arranged in the inner cavity of the duct expansion section. The device effectively reduces the noise generated by the operation of the fan, significantly improves the environment of the mining area and its surroundings, and improves the quality of life and work of residents. The air outlet duct does not need to change the operation mode and ventilation conditions of the fan, has lower cost, is easier to implement, and has significant economic benefits and practicality.

Description

Air outlet barrel capable of reducing noise based on fan operation

Technical Field

The utility model relates to the technical field of ventilation and noise reduction, in particular to a noise-reduction air outlet cylinder based on fan operation.

Background

In the mining production process, the fan is used as key ventilation equipment, plays a vital role in guaranteeing underground air circulation and removing harmful gases, and the noise pollution problem generated in the operation process of the fan is increasingly remarkable, so that the production environment of a mining area is influenced, and serious interference is caused to daily life and work of surrounding residents. Therefore, on the premise of not changing the operation of the fan and the underground ventilation condition, the noise generated by the operation of the fan is effectively reduced, which becomes the problem to be solved in the current mining production,

The traditional noise reduction method is often realized by adding a sound insulation facility or adjusting the rotating speed of the fan, so that the cost is high, the normal operation and the ventilation effect of the fan are affected, and therefore, the noise-reduction air outlet barrel based on the operation of the fan is provided.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the air outlet cylinder capable of reducing noise based on the operation of a fan, and solves the problems.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme that the air outlet barrel capable of reducing noise based on fan operation comprises a connecting air pipe, wherein one side of the connecting air pipe is fixedly connected with an air pipe expansion section, one side of the air pipe expansion section, which is far away from the connecting air pipe, is fixedly connected with a silencing barrel, one side of the silencing barrel, which is far away from the air pipe expansion section, is fixedly connected with a buffering air cover, one end, which is far away from the silencing barrel, of the buffering air cover is fixedly connected with an air outlet buffer pipe, the upper surface of the air outlet buffer pipe is fixedly connected with an air outlet pipeline, and the lower ends of the side surfaces of the connecting air pipe and the silencing barrel are fixedly connected with European fixing frames, and the air outlet barrel further comprises:

The device of making an uproar falls in the inner chamber of tuber pipe expansion section for reduce the speed and fall the wind flow of process, the device of making an uproar falls including dwang, amortization gyro wheel and arc connect the aerofoil, both ends rotate about the inner wall of tuber pipe expansion section and are connected with the dwang, fixedly connected with amortization gyro wheel on the dwang, the side fixedly connected with of amortization gyro wheel is a plurality of arc connect the aerofoil that are annular equidistance and arrange, the arc connects the aerofoil to be the arc, the inboard fixedly connected with acoustic celotex board of the crooked of arc connect the aerofoil.

Preferably, one side of the connecting air pipe far away from the air pipe expansion section is fixedly connected with a damping flange gasket.

Preferably, the two ends of the expansion section of the air pipe are funnel-shaped and expand from the two ends to the middle.

Preferably, a sound insulation material layer is arranged on the inner wall of the silencing barrel.

Preferably, the bottom surface of air-out buffer tube is kept away from the one end of buffering fan housing and is the arc, the vent has been seted up to the upper surface of air-out buffer tube, the one end fixedly connected with integrated wind direction guide block that the topside inner wall of air-out buffer tube is close to the vent, fixedly connected with a plurality of equidistance wind deflectors of arranging between the inner wall of one side that the wind direction guide block is close to the vent and air-out buffer tube.

(III) beneficial effects

Compared with the prior art, the utility model provides the air outlet barrel capable of reducing noise based on the operation of the fan, which has the following beneficial effects:

1. The air outlet barrel capable of reducing noise based on the operation of the fan effectively weakens noise generated in the operation process of the fan through the optimized structure, greatly reduces the pollution degree of the noise to the surrounding environment, improves the quality of the whole working environment of a mining area, greatly reduces the noise interference degree of surrounding residents, and improves the living and working conditions of the residents.

2. Compared with the traditional noise reduction method, the noise reduction air outlet barrel based on the operation of the fan has the advantages of lower cost and simpler and more convenient implementation, and the existing fan and ventilation system do not need to be modified on a large scale.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of an expanded section of the ductwork of the present utility model;

FIG. 3 is a schematic cross-sectional view of an air-out buffer tube of the present utility model;

FIG. 4 is a schematic view of the internal structure of the air outlet pipeline according to the present utility model;

fig. 5 is a partially enlarged schematic view at a in fig. 2.

The air duct type air conditioner comprises an air duct 1, an air duct connecting part 2, an air duct expansion part 3, a silencing cylinder 4, a buffering fan cover 5, an air outlet buffer tube 6, an air outlet pipeline 7, a noise reduction device 8, an air direction guide block 9, an air deflector 10, a fixing frame 11, a filter screen 12, a damping flange gasket 13, a rotating rod 14, a silencing roller 15, an arc-shaped air deflector 16 and a sound insulation plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, an air outlet barrel capable of reducing noise based on fan operation comprises a connecting air pipe 1, one side fixedly connected with air pipe expansion section 2 of the connecting air pipe 1, one side fixedly connected with amortization section 3 of the connecting air pipe 1 is kept away from to the air pipe expansion section 2, one side fixedly connected with slow fan housing 4 of the air pipe expansion section 2 is kept away from to the amortization section 3, one end fixedly connected with air outlet buffer tube 5 of the amortization section 3 is kept away from to the slow fan housing 4, the upper surface fixedly connected with air outlet pipeline 6 of the air outlet buffer tube 5, all fixedly connected with euro mount 10 of side lower extreme of connecting air pipe 1 and amortization section 3 still includes:

Noise reducer 7, it sets up in the inner chamber of tuber pipe expansion section 2, noise reducer 7 includes dwang 13, amortization gyro wheel 14 and arc air receiving plate 15, both ends rotate about the inner wall of tuber pipe expansion section 2 are connected with dwang 13, fixedly connected with amortization gyro wheel 14 on the dwang 13, the side fixedly connected with of amortization gyro wheel 14 is a plurality of arc air receiving plate 15 that are annular equidistance and arrange, arc air receiving plate 15 is the arc, the inboard fixedly connected with acoustic celotex board 16 of the bending of arc air receiving plate 15 for reduce the speed and fall the noise to the wind flow of process, connect tuber pipe 1 as the initial part of play dryer, be used for connecting the fan, ensure that the wind flow can get into the play dryer smoothly, slow fan housing 4 further slows down the wind flow rate, noise reduction produces.

Further, a damping flange gasket 12 is fixedly connected to one side of the connecting air pipe 1 far away from the air pipe expansion section 2.

Further, both ends of the air pipe expansion section 2 are funnel-shaped, the air pipe expansion section 2 is designed to be funnel-shaped, and both ends are expanded towards the middle, so that the structure is favorable for reducing vortex of air flow in a pipeline, and noise is reduced.

Further, a sound insulation material layer is arranged on the inner wall of the sound attenuation cylinder 3, and the passing wind flow is decelerated and noise reduced through the built-in sound insulation material layer.

Further, the one end that the buffering fan housing 4 was kept away from to the bottom surface of air-out buffer tube 5 is the arc, the vent has been seted up to the upper surface of air-out buffer tube 5, the one end fixedly connected with integration wind direction guide block 8 that the top side inner wall of air-out buffer tube 5 is close to the vent, fixedly connected with a plurality of equidistance aviation baffle 9 of arranging between the inner wall of one side that wind direction guide block 8 is close to the vent and air-out buffer tube 5, the one end that the buffering fan housing was kept away from to air-out buffer tube 5 bottom surface is the arc, help the steady transition of wind current, and through the direction of wind direction guide block 8 and aviation baffle 9 adjustment wind current, ensure that the wind current can evenly, stably pass through the air-out section of thick bamboo.

Working principle: when the fan operates, the wind flows through connecting tuber pipe 1 and gets into tuber pipe expansion section 2, and after in proper order in amortization section 3, slow the fan housing 4 and the air-out buffer tube 5, discharge in via air-out pipeline 6, when entering into connecting tuber pipe 1 by the fan, shock attenuation flange gasket 12 can reduce vibrations and noise that the wind flows in, when entering into tuber pipe expansion section 2 through connecting tuber pipe 1, because tuber pipe expansion section 2 funnel-shaped design, the vortex in the wind flows is effectively reduced, thereby preliminary noise reduction, in tuber pipe expansion section 2, wind flows can blow on arc aviation baffle 15 through tuber pipe expansion section 2, drive amortization gyro wheel 14 and rotate, make arc aviation baffle 15 and acoustical baffle 16 and wind flow produce the friction, consume the partial energy in the wind flows, further noise level reduction, arc aviation baffle 15 can lead to the wind flows simultaneously, make wind flows can more steadily pass through barrel 3, enter into slow the fan housing 4 after wind flows in through connecting tuber pipe 1, further buffering flow velocity, and wind flows in wind guide block 8 through wind guide block 8, can be guaranteed to the inside through the noise reduction, can be adjusted to the noise reduction effect, can be guaranteed to the inside the filter screen is realized, the noise reduction, can be improved, the noise reduction effect is realized, and the noise reduction device is improved, and the noise reduction device is realized, and the noise reduction device is improved, can be protected through the noise reduction device is more evenly, and the noise-absorbing device is used by the noise.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An air outlet duct capable of reducing noise based on the operation of a fan, comprising a connecting air duct (1), characterized in that: one side of the connecting air duct (1) is fixedly connected to an air duct expansion section (2), the side of the air duct expansion section (2) away from the connecting air duct (1) is fixedly connected to a silencer (3), the side of the silencer (3) away from the air duct expansion section (2) is fixedly connected to a slow wind cover (4), one end of the slow wind cover (4) away from the silencer (3) is fixedly connected to an air outlet buffer pipe (5), the upper surface of the air outlet buffer pipe (5) is fixedly connected to an air outlet duct (6), the lower ends of the side surfaces of the connecting air duct (1) and the silencer (3) are fixedly connected to a fixing frame (10), and further comprising:

A noise reduction device (7) is arranged in the inner cavity of the air duct expansion section (2) and is used to decelerate and reduce the noise of the passing airflow. The noise reduction device (7) comprises a rotating rod (13), a muffler roller (14) and an arc-shaped air receiving plate (15). The rotating rod (13) is rotatably connected to the upper and lower ends of the inner wall of the air duct expansion section (2). The muffler roller (14) is fixedly connected to the rotating rod (13). A plurality of arc-shaped air receiving plates (15) arranged equidistantly in a ring are fixedly connected to the side of the muffler roller (14). The arc-shaped air receiving plates (15) are arc-shaped, and a sound insulation plate (16) is fixedly connected to the inner side of the curved arc-shaped air receiving plate (15).

2. An air outlet duct capable of reducing noise based on fan operation according to claim 1, characterized in that a shock-absorbing flange gasket (12) is fixedly connected to the side of the connecting air duct (1) away from the air duct expansion section (2).

3. According to claim 1, an air outlet duct capable of reducing noise based on fan operation is characterized in that: both ends of the air duct expansion section (2) are funnel-shaped and expand from the two ends toward the middle.

4. The air outlet tube capable of reducing noise based on fan operation according to claim 1, characterized in that a layer of sound insulation material is provided on the inner wall of the silencer tube (3).

5. An air outlet duct capable of reducing noise based on fan operation according to claim 1, characterized in that: the bottom surface of the air outlet buffer tube (5) is arc-shaped at one end away from the wind buffer cover (4), a ventilation hole is provided on the upper surface of the air outlet buffer tube (5), an integrated wind direction guide block (8) is fixedly connected to one end of the top inner wall of the air outlet buffer tube (5) close to the ventilation hole, and a plurality of equidistantly arranged wind guide plates (9) are fixedly connected between the side of the wind direction guide block (8) close to the ventilation hole and the inner wall of the air outlet buffer tube (5).