CN216139565U - Composite wind-guiding noise-eliminating structure - Google Patents
Composite wind-guiding noise-eliminating structure Download PDFInfo
- Publication number
- CN216139565U CN216139565U CN202121383107.0U CN202121383107U CN216139565U CN 216139565 U CN216139565 U CN 216139565U CN 202121383107 U CN202121383107 U CN 202121383107U CN 216139565 U CN216139565 U CN 216139565U
- Authority
- CN
- China
- Prior art keywords
- panel
- windward side
- composite
- noise
- sound absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000010521 absorption reaction Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 5
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 230000008030 elimination Effects 0.000 abstract description 8
- 238000003379 elimination reaction Methods 0.000 abstract description 8
- 230000003584 silencer Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000030279 gene silencing Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Landscapes
- Building Environments (AREA)
Abstract
The utility model discloses a composite wind guide noise elimination structure which comprises a flange plate, a windward side, a composite sound absorption layer and a panel. The flange plate is fixed on the panel, the windward side is fixed on the panel, and the composite sound absorption layer is filled between the panel and the windward side. The utility model discloses a simple structure, the range of application is wide, can carry out the water conservancy diversion to the air current effectively, and increase air inlet area reduces frictional resistance, reduces the noise regeneration, can regard as noise eliminator to use alone, can improve the noise elimination effect of silencer with the silencer combination.
Description
Technical Field
The utility model belongs to the technical field of ventilation and noise elimination, and particularly relates to a composite air guide and noise elimination structure.
Background
The silencer is mainly a device which is arranged on an airflow path and is used for treating noise. Mufflers are mainly classified into resistive mufflers, and resistive composite mufflers according to their properties. The resistive muffler converts sound energy into heat energy through friction of sound waves in a porous sound absorption material or a sound absorption structure, so that the purpose of sound elimination is achieved. Reactive mufflers dissipate acoustic energy primarily through resonance caused by a cavity or a variable diameter. The impedance composite muffler has the silencing characteristics of both a resistive muffler and a reactive muffler.
Disclosure of Invention
The utility model aims to provide a composite air guide noise elimination structure, which achieves the purposes of increasing air inlet area, reducing air inlet resistance, guiding flow, eliminating noise and the like.
In order to achieve the purpose, the utility model provides the following technical scheme: a composite wind-guiding noise-eliminating structure comprises a flange plate, a windward side, a panel and a composite sound-absorbing layer. The flange plate is fixed on the panel, the windward side is fixed on the panel, and the composite sound absorption layer is filled between the windward side and the panel. The silencer has the advantages of simple structure and wide application range, can effectively guide airflow, increase air inlet area, reduce frictional resistance and reduce regenerative noise, can be independently used as a silencer, and can improve the silencing effect of the silencer by combining with the silencer.
Preferably, the flange plate, the windward side and the panel are all made of metal materials.
Preferably, the composite sound absorption layer is formed by combining four sound absorption materials of fiber cloth, glass wool, rock wool and a damping plate singly or in a layered structure.
Preferably, the windward side and the face plate are made of galvanized steel plates with the thickness of 1-1.5 mm.
Preferably, the windward side is an arc-shaped micro-perforated plate, the perforation rate is 1-4%, and the aperture is 0.5-2 mm.
Preferably, the panel combination is of a rectangular or circular configuration.
Preferably, the length of the composite wind guide and noise elimination structure channel is not more than 400 mm.
The utility model has the technical effects and advantages that: the silencer has the advantages of simple structure, easy realization, effective buffering of air flow, reduction of frictional resistance and regenerative noise, capability of being combined with various silencers, and wide application range.
Drawings
FIG. 1 is a schematic sectional view showing the structures of embodiments 1, 2 and 3;
fig. 2 is a schematic structural diagram of embodiment 1.
Fig. 3 is a schematic structural diagram of embodiment 2.
FIG. 4 is a schematic structural diagram of embodiment 3.
In the figure: 1. a flange plate; 2. the windward side; 3. a panel; 4. and (4) a composite sound absorption layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a composite wind guide noise elimination structure as shown in figures 1-4, which comprises a flange plate, a windward side, a panel and a composite sound absorption layer, and is characterized in that: the flange plate is fixed on the panel, the windward side is fixed on the panel, and the composite sound absorption layer is filled between the windward side and the panel.
Specifically, the flange plate, the windward side and the panel are all made of metal materials.
Specifically, the composite sound absorption layer is formed by combining or combining four sound absorption materials, namely fiber cloth, glass wool, rock wool and a damping plate, and the materials are combined into a laminated structure.
Specifically, the windward side and the face plate are made of galvanized steel plates with the thickness of 1-1.5 mm.
Specifically, the windward side is an arc-shaped micro-perforated plate, the perforation rate is 1-4%, and the aperture is 0.5-2 mm.
Specifically, the panel assembly is a rectangular or circular structure.
Specifically, the length of the composite air guide silencing structure channel is not more than 400 mm.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a compound wind-guiding sound-attenuating structure, includes ring flange (1), windward side (2), panel (3), compound acoustic absorbent layer (4), its characterized in that: the flange plate (1) is fixed on the panel (3), the windward side (2) is fixed on the panel (3), and the composite sound absorption layer (4) is filled between the windward side (2) and the panel (3).
2. The composite wind-guiding noise-eliminating structure of claim 1, wherein: the flange plate (1), the windward side (2) and the panel (3) are all made of metal materials.
3. The composite wind-guiding noise-eliminating structure of claim 1, wherein: the composite sound absorption layer (4) is formed by combining four sound absorption materials of fiber cloth, glass wool, rock wool and a damping plate independently or in a layered structure.
4. The composite wind-guiding noise-eliminating structure of claim 2, wherein: the windward side (2) and the face plate (3) are made of galvanized steel plates with the thickness of 1-1.5 mm.
5. The composite wind-guiding noise-eliminating structure of claim 4, wherein: the windward side (2) is an arc-shaped micro-perforated plate, the perforation rate is 1-4%, and the aperture is 0.5-2 mm.
6. The composite wind-guiding noise-eliminating structure of claim 4, wherein: the panel (3) is combined into a rectangular or round structure.
7. The composite wind-guiding noise-eliminating structure of claim 1, wherein: the length of the channel does not exceed 400 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121383107.0U CN216139565U (en) | 2021-06-22 | 2021-06-22 | Composite wind-guiding noise-eliminating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121383107.0U CN216139565U (en) | 2021-06-22 | 2021-06-22 | Composite wind-guiding noise-eliminating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216139565U true CN216139565U (en) | 2022-03-29 |
Family
ID=80800700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121383107.0U Active CN216139565U (en) | 2021-06-22 | 2021-06-22 | Composite wind-guiding noise-eliminating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216139565U (en) |
-
2021
- 2021-06-22 CN CN202121383107.0U patent/CN216139565U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206293157U (en) | A kind of noise-reduction device | |
| CN111489730B (en) | Impedance composite type film silencer | |
| CN216139565U (en) | Composite wind-guiding noise-eliminating structure | |
| CN111649009A (en) | Composite noise eliminator for air inlet of high-speed centrifugal fan | |
| CN211202430U (en) | Broadband silencer for centrifugal fan | |
| CN207634397U (en) | Ventilation silencer | |
| CN111022373A (en) | Converter silencing air duct system and method for reducing low-frequency noise | |
| CN203258770U (en) | Sound insulation cotton for air conditioner compressor and air conditioner | |
| CN210200313U (en) | Low-frequency damping silencer and gas water heater using same | |
| CN201326584Y (en) | Silencing component for silencer | |
| CN204332355U (en) | Formaldehydeless environment-friendly type sound suppressor | |
| CN213877565U (en) | Sheet type silencer structure | |
| CN104538021A (en) | Formaldehyde-free environment-friendly silencer | |
| WO2022001831A1 (en) | Silencing unit, and honeycomb muffler | |
| CN105091298A (en) | Silencer and air conditioner | |
| CN110630380B (en) | Generating set | |
| CN212656901U (en) | Noise elimination and reduction mechanism of gasoline generator set | |
| CN209457996U (en) | A kind of multilayer muffler of diesel-driven generator | |
| CN212509000U (en) | Composite noise eliminator for air inlet of high-speed centrifugal fan | |
| CN204703983U (en) | The effective silencing apparatus of a kind of automobile exhaust | |
| CN112420010B (en) | Sheet type muffler structure | |
| CN221374900U (en) | Low-resistance silencing elbow | |
| CN112460076A (en) | Main exhaust fan array type silencer for large air volume and strong mixed noise | |
| CN103743259A (en) | Tilting plate-honeycomb-type silencer | |
| CN205026906U (en) | Silencer and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |