CN209444626U - A kind of main fan noise eliminating silencer - Google Patents
A kind of main fan noise eliminating silencer Download PDFInfo
- Publication number
- CN209444626U CN209444626U CN201920017206.3U CN201920017206U CN209444626U CN 209444626 U CN209444626 U CN 209444626U CN 201920017206 U CN201920017206 U CN 201920017206U CN 209444626 U CN209444626 U CN 209444626U
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- China
- Prior art keywords
- wall
- sound
- noise elimination
- noise
- silencing pot
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Abstract
A kind of main fan noise eliminating silencer, including shell, shell both ends are respectively arranged with air inlet and air outlet, inner walls are provided with silencing pot, parallel and interval is fixedly connected with several noise elimination walls in silencing pot, each noise elimination wall includes the wall surrounded by noise elimination panel, it is parallel and be arranged at intervals with several abatvoixs in wall, each wavy structure in abatvoix section, filled with the sound absorbing layer between each abatvoix in wall, the fixed frame there are two being fixedly connected between noise elimination wall and air outlet is spaced in silencing pot, several sound-absorbing rings have been arranged concentrically between two fixed frames, the axis of the axis of each sound-absorbing ring and silencing pot is on the same line.The utility model is compact-sized, the operation is stable, noise elimination effect is good, noise reduction is high.
Description
Technical field
The utility model belongs to mining ventilation equipment technical field more particularly to a kind of main fan noise eliminating silencer.
Background technique
Ventilating system is one of big system of mine down-hole eight, is the multiple device systems of safety accident, Coal Mine Main Fan
The vital task that carry mine ventilation is to guarantee mine safety and the most important equipment of production and link.Main fan is in work
During making use, since main fan noise is big, noise pollution is brought to production environment, not only production work is brought
It influences, and is unfavorable for the health of staff, additionally due to noise can cause to resonate, to make to production security
At influence.It is low to the sound deadening capacity of noise for existing main fan, and internal noise elimination structure is relatively simple, and noise elimination effect is poor.
Utility model content
The utility model provides a kind of compact-sized, the operation is stable, noise elimination to solve shortcoming in the prior art
The main fan noise eliminating silencer that effect is good, noise reduction is high.
In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of main fan noise elimination noise reduction dress
It sets, including shell, shell both ends are respectively arranged with air inlet and air outlet, and inner walls are provided with silencing pot, put down in silencing pot
Row and interval is fixedly connected with several noise elimination walls, each noise elimination wall include the wall surrounded by noise elimination panel, it is parallel in wall and
Be arranged at intervals with several abatvoixs, each wavy structure in abatvoix section, in wall filled be located at each abatvoix it
Between sound absorbing layer, interval is fixedly connected with that there are two the fixed frame between noise elimination wall and air outlet, two fixations in silencing pot
Several sound-absorbing rings it have been arranged concentrically between frame, the axis of the axis of each sound-absorbing ring and silencing pot is on the same line.
The inwardly projecting formation globoidal structure of the middle part inner wall of the air inlet.
The wall outer side of each noise elimination wall is spaced along its length is fixedly connected with several drainage plates, and each drainage plate is flat
It goes and is obliquely installed, the drainage plate on two neighboring wall is staggered.
Each sound-absorbing ring is respectively set to pyramidal structure, and the diameter of each sound-absorbing ring air inlet is greater than the diameter of wind outlet.
The silencing pot, noise elimination panel, abatvoix and sound-absorbing ring are all made of perforated plate and are made, and attractable layer uses porous material
Material is made.
By adopting the above technical scheme, the utility model has the advantages that
1, the utility model carries out noise reduction to noise using noise elimination wall, and noise enters noise elimination within the walls through noise reduction panel, disappears
The each abatvoix of sound within the walls absorbs noise, and abatvoix is arranged to wavy shaped configuration and sound wave is repeatedly reflected,
So that acoustic energy absorption decay, its noise reduction is substantially increased, air-flow enters each sound-absorbing from being pierced by between each noise elimination wall
In ring, each sound-absorbing ring is arranged concentrically, further absorption of noise.
2, the drainage plate of the wall outer side setting of each noise elimination wall plays drainage to air-flow, and increases air-flow
Circulation path, so that noise is sufficiently absorbed by noise elimination wall.
3, each sound-absorbing ring is respectively set to pyramidal structure, and the diameter of each sound-absorbing ring air inlet is greater than the straight of wind outlet
Diameter improves sound-absorbing ring to the noise reduction of noise.
Detailed description of the invention
Fig. 1 is the overlooking structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of noise elimination wall in the utility model；
Fig. 3 is the A-A sectional view in Fig. 1.
Specific embodiment
As shown in Figure 1-3, a kind of main fan noise eliminating silencer of the utility model, including shell 1,1 both ends of shell
It is respectively arranged with air inlet 2 and air outlet 3,1 inner wall of shell is provided with silencing pot 4, and parallel and interval is fixedly connected in silencing pot 4
There are several noise elimination walls, each noise elimination wall includes the wall 5 surrounded by noise elimination panel, parallel in wall 5 and be arranged at intervals with several
Abatvoix 6, the wavy structure in each 6 section of abatvoix, the interior sound absorbing layer filled between each abatvoix 6 of wall 5
7, interval is fixedly connected there are two the fixed frame 8 between noise elimination wall and air outlet 3 in silencing pot 4, between two fixed frames 8
Several sound-absorbing rings 9 have been arranged concentrically it, the axis of the axis of each sound-absorbing ring 9 and silencing pot 4 is on the same line.
The inwardly projecting formation globoidal structure of the middle part inner wall of the air inlet 2.
5 outside of wall of each noise elimination wall is fixedly connected with several drainage plates 10, each drainage in interval along its length
Plate 10 is parallel and is obliquely installed, and the drainage plate 10 on two neighboring wall 5 is staggered.
Each sound-absorbing ring 9 is respectively set to pyramidal structure, and the diameter of each 9 air inlet of sound-absorbing ring is greater than the straight of wind outlet
Diameter.
The silencing pot 4, noise elimination panel, abatvoix 6 and sound-absorbing ring 9 are all made of perforated plate and are made, and attractable layer is using more
Porous materials are made.
The utility model is in work in use, air-flow and noise enter in silencing pot 4 through air inlet 2, and air-flow is from each
It is passed through between noise elimination wall, the drainage plate 10 being arranged on the outside of the wall 5 of each noise elimination wall plays drainage to air-flow, and air-flow is passing through
During crossing, noise enters noise elimination within the walls through noise reduction panel, and each abatvoix 6 eliminated the noise within the walls absorbs noise,
Abatvoix 6 is arranged to wavy shaped configuration and sound wave is repeatedly reflected, so that acoustic energy absorption be decayed, substantially increases its drop
The amount of making an uproar, air-flow enter in each sound-absorbing ring 9 from being pierced by between each noise elimination wall, and each sound-absorbing ring 9 is arranged concentrically, and further inhale
Receive noise.
The present embodiment not makes any form of restriction the shape of the utility model, material, structure etc., all foundations
The technical essence of the utility model any simple modification, equivalent change and modification to the above embodiments, belong to this reality
With the protection scope of new technique scheme.
Claims (5)
1. a kind of main fan noise eliminating silencer, it is characterised in that: including shell, shell both ends be respectively arranged with air inlet and
Air outlet, inner walls are provided with silencing pot, and parallel and interval is fixedly connected with several noise elimination walls, each noise elimination wall in silencing pot
Parallel in wall and be arranged at intervals with several abatvoixs including the wall surrounded by noise elimination panel, each abatvoix section is in wave
Shape wave structure, filled with the sound absorbing layer positioned at each abatvoix between in wall, in silencing pot interval be fixedly connected there are two position
Fixed frame between noise elimination wall and air outlet has been arranged concentrically several sound-absorbing rings between two fixed frames, each sound-absorbing ring
The axis of axis and silencing pot is on the same line.
2. main fan noise eliminating silencer according to claim 1, it is characterised in that: the middle part inner wall of the air inlet
Inwardly projecting formation globoidal structure.
3. main fan noise eliminating silencer according to claim 1 or 2, it is characterised in that: the wall of each noise elimination wall
Outside is spaced along its length is fixedly connected with several drainage plates, and each drainage plate is parallel and is obliquely installed, two neighboring wall
Drainage plate on body is staggered.
4. main fan noise eliminating silencer according to claim 3, it is characterised in that: each sound-absorbing ring is respectively set to
Pyramidal structure, the diameter of each sound-absorbing ring air inlet are greater than the diameter of wind outlet.
5. main fan noise eliminating silencer according to claim 4, it is characterised in that: the silencing pot, noise elimination panel,
Abatvoix and sound-absorbing ring are all made of perforated plate and are made, and attractable layer is made of porous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920017206.3U CN209444626U (en) | 2019-01-07 | 2019-01-07 | A kind of main fan noise eliminating silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920017206.3U CN209444626U (en) | 2019-01-07 | 2019-01-07 | A kind of main fan noise eliminating silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444626U true CN209444626U (en) | 2019-09-27 |
Family
ID=68017172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920017206.3U Expired - Fee Related CN209444626U (en) | 2019-01-07 | 2019-01-07 | A kind of main fan noise eliminating silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209444626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115874727A (en) * | 2022-11-26 | 2023-03-31 | 圣晖系统集成集团股份有限公司 | Toilet's physics falls device of making an uproar |
-
2019
- 2019-01-07 CN CN201920017206.3U patent/CN209444626U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115874727A (en) * | 2022-11-26 | 2023-03-31 | 圣晖系统集成集团股份有限公司 | Toilet's physics falls device of making an uproar |
| CN115874727B (en) * | 2022-11-26 | 2023-10-13 | 圣晖系统集成集团股份有限公司 | Clean room physical noise reduction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 Termination date: 20210107 |