CN212690467U - Fan exhaust silencer for dedusting equipment of whole factory building - Google Patents
Fan exhaust silencer for dedusting equipment of whole factory building Download PDFInfo
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- CN212690467U CN212690467U CN202021073238.4U CN202021073238U CN212690467U CN 212690467 U CN212690467 U CN 212690467U CN 202021073238 U CN202021073238 U CN 202021073238U CN 212690467 U CN212690467 U CN 212690467U
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- shell
- factory building
- silencing
- silencer
- fan
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- 230000003584 silencer Effects 0.000 title claims abstract description 24
- 230000030279 gene silencing Effects 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000009423 ventilation Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 11
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000036541 health Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The utility model discloses a fan exhaust silencer for dedusting equipment of an integral factory building, which comprises a shell, wherein the inner wall of the shell is provided with silencing materials, the air inlet end of the shell is sleeved with a silencing conduit, and the side wall of the silencing conduit is uniformly provided with a plurality of meshes for ventilation; a conical screen plate is arranged in the shell. The silencer of this application utilizes the principle that air current inflation release energy dissipation, gas collision consumed the acoustic energy, has effectively solved acoustic energy relay and energy absorption's problem, combines the further energy-absorbing of amortization material again, has effectively ensured the effect of inhaling the sound and making an uproar.
Description
Technical Field
The utility model relates to a dust collecting equipment's noise elimination technical field that makes an uproar, concretely relates to fan silencer of airing exhaust for whole factory building dust collecting equipment.
Background
Harmful gases and harmful substances are generated in industrial production workshops during production, the harmful gases and the harmful substances are retained indoors and can affect the health of workers, and therefore ventilation and dust removal equipment needs to be arranged so as to filter and purify the harmful gases and the harmful substances.
Although the indoor dust removal purification equipment of factory building is favorable to the air purification of operational environment, if the noise reduction effect of equipment is not good, can directly influence staff's in the workshop work mood and physical and mental health. Moreover, the noise elimination effect of the fan of the ventilation and dust removal equipment placed outside the factory building is not good, and noise pollution can be caused to peripheral office areas and living areas close to the factory building.
At present, various mufflers exist in the market, but the muffling effect is relatively poor, the structure is relatively complex, and the market demand is difficult to meet.
Disclosure of Invention
In view of this, the utility model aims at providing a fan silencer of airing exhaust for whole factory building dust collecting equipment to improve and inhale the sound noise reduction effect.
The utility model discloses an above-mentioned problem is solved to following technical means: a fan exhaust silencer for dedusting equipment of an integral factory building comprises a shell, wherein silencing materials are arranged on the inner wall of the shell, a silencing guide pipe is sleeved at the air inlet end of the shell, and a plurality of air-permeable meshes are uniformly formed in the side wall of the silencing guide pipe; a conical screen plate is arranged in the shell.
Furthermore, the air outlet end of the silencing guide pipe is provided with a conical head, and the conical head is also uniformly provided with a plurality of meshes for ventilation.
Furthermore, the large-diameter end of the conical screen plate is matched and fixedly connected with the inner cavity of the shell.
Further, the air outlet end of the shell is provided with an air outlet structure.
Further, the housing is cylindrical.
Further, the meshes on the conical screen plate are uniformly arranged.
The utility model has the advantages that:
the utility model discloses a fan exhaust silencer for dedusting equipment of an integral factory building, which comprises a shell, wherein the inner wall of the shell is provided with silencing materials, the air inlet end of the shell is sleeved with a silencing conduit, and the side wall of the silencing conduit is uniformly provided with a plurality of meshes for ventilation; a conical screen plate is arranged in the shell. The silencer of this application utilizes the principle that air current inflation release energy dissipation, gas collision consumed the acoustic energy, has effectively solved acoustic energy relay and energy absorption's problem, combines the further energy-absorbing of amortization material again, has effectively ensured the effect of inhaling the sound and making an uproar.
More specifically, the present application is advantageous in the following respects:
(1) by adopting a unique air flow expansion noise elimination design, the mesh on the conical surface changes the direction of the air flow, so that partial sound is absorbed after the air flow collides with the noise elimination material on the inner wall of the shell, and the sound absorption and noise reduction effects are greatly improved;
(2) by arranging the silencing guide pipe and the conical screen plate, the air flow is subjected to expansion release energy dissipation from the small cavity to the large cavity twice, the silencing effect is good, the size is small, and the appearance is attractive;
(3) the silencer has strong noise purification capacity and low economic cost, is suitable for batch production, and has great benefit to the health of the personnel in the workshop indoor operation environment.
Drawings
The invention is further described with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic external view of a muffler connected to a dust removing apparatus;
fig. 3 is an external view schematically showing the connection of the silencer and the soundproof cover of the fan.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. The features and advantages of the present invention will become more apparent from the description. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them.
As shown in fig. 1 to 3, the embodiment provides a fan exhaust silencer for a dedusting device of an overall factory building, which includes a cylindrical housing, wherein a silencing material 7 is disposed on an inner wall of the housing, a conical screen plate 6 is disposed in the housing, and a large-diameter end of the conical screen plate 6 is fixedly connected to an inner cavity of the housing in a matching manner. The air inlet end of the shell is sleeved with a silencing guide pipe 5, the air outlet end of the shell is provided with an air outlet structure 9, and the air outlet end of the silencing guide pipe 5 is provided with a conical head 8. The side wall of the silencing guide pipe 5, the conical surface of the conical head 8 and the conical surface of the conical screen 6 are uniformly provided with a plurality of meshes for ventilation, and the area of the meshes is calculated according to the air quantity and is matched with the power of the fan.
When the silencer is used specifically, the silencer 2 is mainly used for the air exhaust and noise reduction of the fan of the dust removing equipment 1 and is firmly connected with the sound-proof cover 4 of the fan 3.
By adopting the silencer of the embodiment, in the process that the air flow enters the shell from the silencing guide pipe and then flows through the conical screen plate, the process of expanding and releasing energy consumption from the small cavity to the large cavity is performed twice, and meanwhile, the mesh on the conical surface changes the direction of the air flow, so that the air flow is collided with the silencing material on the inner wall of the shell to absorb partial sound, and the sound absorption and noise reduction effects are greatly improved.
In conclusion, the silencer can reliably absorb noise emitted by the fan on the dust removing equipment in the air exhaust process, so that the noise of the fan is greatly reduced, the effect is obvious, and compared with the existing product, the noise reduction value of the fan can be increased by about thirty decibels. After the high-pressure airflow noise of the fan is subjected to secondary flow control in the silencer, the high-pressure airflow noise undergoes two expansion release energy dissipation processes from the small containing cavity to the large containing cavity, and then the energy absorption effect of the silencing material is combined, so that the high-pressure airflow noise flows out in the form of low-pressure airflow, and the silencing effect is effectively ensured.
In addition, in the working process of the fan, the internal energy of the air flow is partially converted into sound energy with certain frequency, and although noise of the fan is greatly weakened, part of the kinetic energy is consumed in the noise reduction process. Therefore, the power factor problem is fully considered in the noise reduction process, and the design is carried out according to the frequency spectrum characteristic of the fan noise, so that the noise is reduced by effectively combining air flow expansion and absorption, an ideal noise reduction effect is achieved, and the working environment is improved.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (6)
1. The utility model provides a fan silencer of airing exhaust for whole factory building dust collecting equipment which characterized in that: the silencer comprises a shell, wherein a silencing material is arranged on the inner wall of the shell, a silencing guide pipe is sleeved at the air inlet end of the shell, and a plurality of air-permeable meshes are uniformly formed in the side wall of the silencing guide pipe; a conical screen plate is arranged in the shell.
2. The fan exhaust silencer for the dedusting equipment of the whole factory building according to claim 1, is characterized in that: the air outlet end of the silencing guide pipe is provided with a conical head, and the conical head is also uniformly provided with a plurality of meshes for ventilation.
3. The fan exhaust silencer for the dedusting equipment of the whole factory building according to claim 2, is characterized in that: the large-diameter end of the conical screen plate is matched and fixedly connected with the inner cavity of the shell.
4. The fan exhaust silencer for the dedusting equipment of the whole factory building according to claim 3, is characterized in that: and the air outlet end of the shell is provided with an air outlet pipe structure.
5. The fan exhaust silencer for the dedusting equipment of the whole factory building according to any one of claims 1 to 4, is characterized in that: the shell is cylindrical.
6. The fan exhaust silencer for the dedusting equipment of the whole factory building according to claim 5, is characterized in that: the meshes on the conical screen plate are uniformly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021073238.4U CN212690467U (en) | 2020-06-12 | 2020-06-12 | Fan exhaust silencer for dedusting equipment of whole factory building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021073238.4U CN212690467U (en) | 2020-06-12 | 2020-06-12 | Fan exhaust silencer for dedusting equipment of whole factory building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690467U true CN212690467U (en) | 2021-03-12 |
Family
ID=74890177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021073238.4U Active CN212690467U (en) | 2020-06-12 | 2020-06-12 | Fan exhaust silencer for dedusting equipment of whole factory building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212690467U (en) |
-
2020
- 2020-06-12 CN CN202021073238.4U patent/CN212690467U/en active Active
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