CN220850162U - Noise reduction and elimination device for fan outlet - Google Patents
Noise reduction and elimination device for fan outlet Download PDFInfo
- Publication number
- CN220850162U CN220850162U CN202322141151.6U CN202322141151U CN220850162U CN 220850162 U CN220850162 U CN 220850162U CN 202322141151 U CN202322141151 U CN 202322141151U CN 220850162 U CN220850162 U CN 220850162U
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- CN
- China
- Prior art keywords
- noise reduction
- elimination device
- fan outlet
- shell
- noise
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- 230000008030 elimination Effects 0.000 title claims abstract description 14
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 17
- 230000030279 gene silencing Effects 0.000 claims abstract description 16
- 241000628997 Flos Species 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 238000004080 punching Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 3
- 230000003584 silencer Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 2
- 239000011241 protective layer Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000011358 absorbing material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000001743 silencing effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the technical field of fans and discloses a noise reduction and noise elimination device for a fan outlet, which comprises a shell, wherein a plurality of silencing sheets are arranged in the shell at intervals, each silencing sheet comprises a sheet body, each sheet body comprises glass floss, a facing layer is arranged on the outer side of each glass floss, and a sound absorption pore plate is arranged on the outer side of each facing layer. The utility model has simple structure, convenient manufacture and low cost, does not influence the normal operation of equipment, can effectively treat the noise problem of large-scale fan equipment in a factory, and reduces the influence of fan noise on staff and surrounding areas.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a noise reduction and noise elimination device for an outlet of a fan.
Background
The fan is a universal mechanical device, has a wide application range, and can not be used in the production of various industries such as steel, electric power, mine, machinery, metallurgy, chemical industry and the like. Noise generated by fans during operation is often a source of accidents that affect worker health and interfere with the environment. Particularly, when fans adjacent to living areas are operated, intense noise is generated to cause noise pollution to staff in factories, and pollution is formed. Therefore, based on the above technical problems, a device capable of reducing noise and eliminating noise of a fan is needed.
Disclosure of utility model
Aiming at the technical problems in the prior art, the utility model provides a noise reduction and silencing device for a fan outlet.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a noise reduction and elimination device falls in fan export, includes the casing, the interval is equipped with a plurality of amortization pieces in the casing, the amortization piece includes the lamellar body, the lamellar body includes the glass silk floss, the outside of glass silk floss is equipped with the facing layer, the outside of facing layer is equipped with the sound absorption orifice plate.
The sound deadening sheets are vertically arranged in the shell at intervals.
Preferably, the shell comprises a middle cylinder body, transition air cylinders connected to two end parts of the middle cylinder body, and a connection air cylinder connected to the end parts of the transition air cylinders.
The silencing sheets are arranged in the middle cylinder, and a plurality of silencing sheets are assembled outside to form a whole and then are arranged in the shell, and are connected in a welding mode; all pass through flange joint between middle barrel and the transition dryer, between transition dryer and the connection dryer, still be equipped with the flange that is used for installing this device on the connection dryer.
Preferably, the shell is made of steel plate with the thickness of 4mm.
Preferably, rib plates are arranged between the silencing sheets, and the rib plates are made of hot-rolled plates with the thickness of 8 mm.
Preferably, the thickness of the glass floss is 200mm, and the density is 50kg/m 3.
Preferably, the material of the facing layer is glass fiber cloth.
Preferably, the material of sound absorption orifice plate is the galvanized punching plate of 3mm thickness, and the interval is equipped with the punching a hole on the sound absorption orifice plate, the punching a hole is the round hole, and the aperture of punching a hole is 8mm, and the pitch of a hole is 3mm.
Preferably, the bottom of the sheet body is connected with a flow guiding tip, and the flow guiding tip is made of angle steel.
The glass silk floss is arranged in the middle, the outer side is wrapped by glass silk cloth, and the two outermost sides are plugged by galvanized punching plates.
The water conservancy diversion point is located the bottom of lamellar body, can play the reposition of redundant personnel effect to the air through this device, can effectively reduce the wearing and tearing of amortization piece, increase of service life.
The utility model adopts a porous structure and is matched with a sound absorbing material with specific thickness to absorb sound energy so as to reduce noise and achieve the silencing effect. Because the noise spectrum of aerodynamic noise at the outlet of the fan is mainly composed of medium and low frequencies, the utility model sets the volume weight of the sound absorbing material and the sound absorbing sheet with specific thickness aiming at the noise characteristic so as to achieve the optimal sound absorbing effect.
The utility model relates to equipment which can not only allow air flow to pass through, but also effectively reduce noise, and is used for reducing noise transmitted by air inlet and outlet ports or along pipelines of various aerodynamic equipment.
The utility model also comprises other components which can enable the fan outlet noise reduction and noise elimination device to be used normally, and the components are all conventional technical means in the field. In addition, the devices or components not defined in the present utility model are all conventional in the art.
The utility model has simple structure, convenient manufacture and low cost, does not influence the normal operation of equipment, can effectively treat the noise problem of large-scale fan equipment in a factory, and reduces the influence of fan noise on staff and surrounding areas.
Drawings
Fig. 1 is a schematic structural view of the present embodiment.
Fig. 2 is a top view of the silencer sheet of fig. 1.
Fig. 3 is a schematic structural view of the silencer sheet in this embodiment.
In the figure: 1. a sound deadening sheet; 2. glass floss; 3. a facing layer; 4. a sound absorbing orifice plate; 5. a housing; 6. a transition wind barrel; 7. a flange; 8. rib plates; 9. and a diversion tip.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1-3, a noise reduction and elimination device for a fan outlet comprises a shell 5, a plurality of silencing sheets 1 are arranged in the shell at intervals, each silencing sheet 1 comprises a sheet body, each sheet body comprises a glass floss 2, a facing layer 3 is arranged on the outer side of each glass floss 2, and a sound absorption pore plate 4 is arranged on the outer side of each facing layer 3.
In this embodiment, the sound deadening sheets are vertically spaced apart in the casing 5.
The shell 5 comprises a middle cylinder body, transition air cylinders connected to two end parts of the middle cylinder body, and a connection air cylinder connected to the end parts of the transition air cylinders.
In this embodiment, the silencing sheets 1 are disposed in the middle cylinder, and the plurality of silencing sheets 1 are assembled outside to form a whole and then mounted in the housing 5, and are connected by welding; the diameter of the middle cylinder body is 2000mm, the height of the middle cylinder body is 1500mm, the height of the transition air duct is 300mm, and the diameter of the connecting air duct is 1400mm; the middle cylinder body is connected with the transition air duct 6 through a flange 7, the transition air duct is connected with the connection air duct, the connection air duct is further provided with a flange for installing the device, and the flange is made of hot-rolled plates with the thickness of 8 mm.
The shell 5 is made of steel plates with the thickness of 4mm. In this embodiment, the housing is made of steel plate made of Q235-B steel.
And rib plates 8 are arranged between the silencing sheets 1, and the rib plates are made of hot-rolled plates with the thickness of 8 mm.
The thickness of the glass floss 2 is 200mm, and the density is 50kg/m 3.
The material of the facing layer 3 is glass fiber cloth. In this example, the glass cloth was B500 (500 mm in width).
The material of the sound absorption pore plate 4 is a galvanized punching plate with the thickness of 3mm, punching holes are formed in the sound absorption pore plate 4 at intervals, the punching holes are round holes, the punched holes have the aperture of 8mm, and the hole distance is 3mm.
The bottom of lamellar body is connected with water conservancy diversion point 9, the material of water conservancy diversion point is the angle steel. In the embodiment, the flow guiding tip is made of 70 x 5 steel angle steel with the model of Q235-B steel material.
The glass silk floss 2 is arranged in the middle, the outer side is wrapped by glass silk cloth, and the two outermost sides are plugged by galvanized punching plates.
The water conservancy diversion point is located the bottom of lamellar body, can play the reposition of redundant personnel effect to the air through this device, can effectively reduce the wearing and tearing of amortization piece 1, increase of service life.
When in use, the device is arranged on a chimney of a fan (the diameter of the chimney is 1.4m, the height is 36.6mm, the ventilation area of the original chimney is 0.7 x 3.14=1.54 square meters, and the device is arranged at the cut-off position of the chimney 20m away from the ground).
In this embodiment, seven silencing sheets are provided, and the sum of the cross-sectional areas of the seven silencing sheets is 1.07 square meters, so that the ventilation area of the device is 3.14-1.07=2.07 square meters, and the smooth passing of air flow can be ensured.
The utility model adopts a porous structure and is matched with a sound absorbing material with specific thickness to absorb sound energy so as to reduce noise and achieve the silencing effect. Because the noise spectrum of aerodynamic noise at the outlet of the fan is mainly composed of medium and low frequencies, the utility model sets the volume weight of the sound absorbing material and the sound absorbing sheet with specific thickness aiming at the noise characteristic so as to achieve the optimal sound absorbing effect.
The utility model relates to equipment which can not only allow air flow to pass through, but also effectively reduce noise, and is used for reducing noise transmitted by air inlet and outlet ports or along pipelines of various aerodynamic equipment.
The utility model has simple structure, convenient manufacture and low cost, does not influence the normal operation of equipment, can effectively treat the noise problem of large-scale fan equipment in a factory, reduces the influence of fan noise on staff and surrounding areas, and meets the class II standard of the noise emission standard of social living environment (GB 22337-2008) after treatment.
The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (7)
1. Noise reduction and elimination device for fan outlet is characterized in that: the silencer comprises a shell, a plurality of silencing sheets are arranged in the shell at intervals, each silencing sheet comprises a sheet body, each sheet body comprises glass floss, a facing layer is arranged on the outer side of each glass floss, a sound absorption pore plate is arranged on the outer side of each facing layer, and each shell comprises a middle barrel, a transition air barrel connected to two ends of the middle barrel and a connection air barrel connected to the end of each transition air barrel.
2. The fan outlet noise reduction and elimination device according to claim 1, wherein: the shell is made of steel plates with the thickness of 4mm.
3. The fan outlet noise reduction and elimination device according to claim 1, wherein: and rib plates are arranged between the silencing sheets, and the rib plates are made of hot rolled plates with the thickness of 8 mm.
4. The fan outlet noise reduction and elimination device according to claim 1, wherein: the thickness of the glass floss is 200mm, and the density is 50kg/m 3.
5. The fan outlet noise reduction and elimination device according to claim 1, wherein: the material of the protective layer is glass fiber cloth.
6. The fan outlet noise reduction and elimination device according to claim 1, wherein: the material of sound absorption orifice plate is galvanized punching plate of 3mm thickness, and the interval is equipped with the punching a hole on the sound absorption orifice plate, the punching a hole is the round hole, and the aperture of punching a hole is 8mm, and the pitch of a hole is 3mm.
7. The fan outlet noise reduction and elimination device according to claim 1, wherein: the bottom of the sheet body is connected with a flow guiding tip, and the flow guiding tip is made of angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322141151.6U CN220850162U (en) | 2023-08-10 | 2023-08-10 | Noise reduction and elimination device for fan outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322141151.6U CN220850162U (en) | 2023-08-10 | 2023-08-10 | Noise reduction and elimination device for fan outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850162U true CN220850162U (en) | 2024-04-26 |
Family
ID=90775235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322141151.6U Active CN220850162U (en) | 2023-08-10 | 2023-08-10 | Noise reduction and elimination device for fan outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850162U (en) |
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2023
- 2023-08-10 CN CN202322141151.6U patent/CN220850162U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |