CN204551779U - Double-deck series connection medical clean microperforated panel noise damper - Google Patents
Double-deck series connection medical clean microperforated panel noise damper Download PDFInfo
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- CN204551779U CN204551779U CN201520227303.7U CN201520227303U CN204551779U CN 204551779 U CN204551779 U CN 204551779U CN 201520227303 U CN201520227303 U CN 201520227303U CN 204551779 U CN204551779 U CN 204551779U
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- microperforated panel
- series connection
- noise damper
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- microperforated
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Abstract
The utility model discloses a kind of double-deck series connection medical clean microperforated panel noise damper, there is housing, the rear ends of described housing is provided with inlet tube and outlet, the first microperforated panel is connected with between inlet tube and outlet, be provided with the second microperforated panel between first microperforated panel and housing, the first microperforated panel and the second microperforated panel are evenly provided with some micropunch.Structure is simple, easy to use, have good wideband absorption characteristic, it is the thin plate of metal or other materials, wear the micropore being less than 1mm with aperture, cavity composition after splice, has clean, pollution-free, high temperature resistant, corrosion-resistant, to bear high velocity air impact feature, in the case of a high temperature again, its relative acoustic resistance will become large, relative acoustic mass diminishes, and resonance frequency is to high-frequency mobile, and frequency bandwidth increases.
Description
Technical field
The utility model relates to a kind of double-deck series connection medical clean microperforated panel noise damper.
Background technology
Noise damper is a kind of device stoping sound transmission and allow air-flow to pass through, and is the important measures eliminating air power noise.Noise damper is mounted in the device of the reduction noise on the gas channel on air powered equipment or in inlet and exhaust system.Microperforated panel noise damper is generally the simple metal thin plate making being less than 1mm with thickness, and thin plate is less than with aperture the bit bore of 1mm, and perforated percentage is 1%-3%.Select the chamber that different perforated percentages is different with thickness of slab dark, just can control the spectral performance of noise damper, make it in the frequency range needed, obtain good erasure effect.For high temperature, high humidity, there is the environmental system of mist of oil, aqueous vapor generally to select microcellular structure muffling device, for there being the clean environmental system such as such as operating room, recording room, clean room required, microcellular structure muffling device should be adopted.
In the building finishing such as hospital, no matter be control the reverberation time, reduce noise, improve sound diffusion or eliminate tonequality defect, all be unable to do without the use to sound absorption material, sound absorption material is for improving tonequality, reduce noise and there is important effect, microperforated panel soundabsorbing construction is widely used in sound absorption, many fields such as noise elimination, installation and transportation are inconvenient, improve workload, complex structure, noise elimination frequency band is narrow, the pressure loss is large, reproduced air-flow noise is large, noise reduction ring guaranteed request cannot be reached, be not easy to control simultaneously, in use can use resistive filler, dirt can have been produced during work, be afraid of mist of oil, aqueous vapor, to high temperature resistant, decay resistance is poor and cannot impact by resistance to high velocity air, long service life is shorter, need often to change, improve cost of production.
Summary of the invention
The technical problems to be solved in the utility model is: in order to solve the prior art Problems existing in above-mentioned background technology, provides a kind of bilayer series connection medical clean microperforated panel noise damper of improvement.
The utility model solves the technical scheme that its technical problem adopts: a kind of double-deck series connection medical clean microperforated panel noise damper, there is housing, the rear ends of described housing is provided with inlet tube and outlet, the first microperforated panel is connected with between inlet tube and outlet, be provided with the second microperforated panel between first microperforated panel and housing, the first microperforated panel and the second microperforated panel are evenly provided with some micropunch.
Further, the perforated percentage on the first described microperforated panel and the second microperforated panel is 1.4%-1.6%, and the diameter of micropunch is 0.3-0.5mm, and the thickness of slab of microperforated panel is 0.3-0.6mm, and structure is simple, easy to use, has good wideband absorption characteristic.
Further, the shape of described micropunch is square, distance of center circle between Kong Yukong is 2-4mm, and the dark ratio in chamber, front and back is 3:1, has good wideband absorption characteristic, the feature that high velocity air impacts can be born, in the case of a high temperature, its relative acoustic resistance will become greatly, and relative acoustic mass diminishes, resonance frequency is to high-frequency mobile, and frequency bandwidth increases.
Further, described housing adopts steel, stainless steel material or alloy steel material to make, and has clean, pollution-free, high temperature resistant, corrosion-resistant, to bear high velocity air impact feature, uses material wider, extend the application life of product, without the need to often keeping in repair and changing.
The beneficial effects of the utility model are, structure of the present utility model is simple, easy to use, there is good wideband absorption characteristic, it, the thin plate of metal or other materials, wears the micropore being less than 1mm with aperture, then cavity composition after splice, there is clean, pollution-free, high temperature resistant, corrosion-resistant, to bear high velocity air impact feature, in the case of a high temperature, its relative acoustic resistance will become greatly, and relative acoustic mass diminishes, resonance frequency is to high-frequency mobile, and frequency bandwidth increases.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
In figure: 1. housing, 2. inlet tube, 3. outlet, 4. the first microperforated panel, 5. the second microperforated panel, 6. micropunch.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
One bilayer series connection medical clean microperforated panel noise damper as shown in Figure 1, there is housing 1, the rear ends of described housing 1 is provided with inlet tube 2 and outlet 3, the first microperforated panel 4 is connected with between inlet tube 2 and outlet 3, the second microperforated panel 5 is provided with between first microperforated panel 4 and housing 1, first microperforated panel 4 and the second microperforated panel 5 are evenly provided with some micropunch 6, perforated percentage on first microperforated panel 4 and the second microperforated panel 5 is 1.4%-1.6%, the diameter of micropunch 6 is 0.3-0.5mm, the thickness of slab of microperforated panel 6 is 0.3-0.6mm, the shape of micropunch 6 is square, distance of center circle between Kong Yukong is 2-4mm, before and after the dark ratio in chamber be 3:1, housing 1 adopts steel, stainless steel material or alloy steel material are made.
Concrete bilayer series connection microperforated panel is connect after the first microperforated panel 4 structure one deck second microperforated panel 5 and cavity structure, frequency band can be made to low frequency Directional Extension, and high-frequency absorption is unaffected, and noise absorbent amount is strengthened in whole frequency band range, after fixing a silencer, the noise of former aspiration pump declines to a great extent, in whole band limits, drop to below desired value, and noise declines particularly evident.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on manual, must determine its technical scope according to right.
Claims (4)
1. a double-deck series connection medical clean microperforated panel noise damper, there is housing (1), it is characterized in that: the rear ends of described housing (1) is provided with inlet tube (2) and outlet (3), the first microperforated panel (4) is connected with between inlet tube (2) and outlet (3), be provided with the second microperforated panel (5) between first microperforated panel (4) and housing (1), the first microperforated panel (4) and the second microperforated panel (5) are evenly provided with some micropunch (6).
2. bilayer series connection medical clean microperforated panel noise damper according to claim 1, it is characterized in that: the perforated percentage on described the first microperforated panel (4) and the second microperforated panel (5) is 1.4%-1.6%, the diameter of micropunch (6) is 0.3-0.5mm, and the thickness of slab of microperforated panel (6) is 0.3-0.6mm.
3. bilayer series connection medical clean microperforated panel noise damper according to claim 1, is characterized in that: the shape of described micropunch (6) is square, and the distance of center circle between Kong Yukong is 2-4mm, and the dark ratio in chamber, front and back is 3:1.
4. bilayer series connection medical clean microperforated panel noise damper according to claim 1, is characterized in that: described housing (1) adopts steel, stainless steel material or alloy steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227303.7U CN204551779U (en) | 2015-04-16 | 2015-04-16 | Double-deck series connection medical clean microperforated panel noise damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227303.7U CN204551779U (en) | 2015-04-16 | 2015-04-16 | Double-deck series connection medical clean microperforated panel noise damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204551779U true CN204551779U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520227303.7U Active CN204551779U (en) | 2015-04-16 | 2015-04-16 | Double-deck series connection medical clean microperforated panel noise damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN204551779U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458736A (en) * | 2018-12-24 | 2019-03-12 | 广东美的白色家电技术创新中心有限公司 | Gas water-heater housing and gas heater |
| CN110428801A (en) * | 2019-07-10 | 2019-11-08 | 北京石油化工学院 | Silencing apparatus for explosion equipment |
| CN113734394A (en) * | 2021-08-03 | 2021-12-03 | 中国科学院声学研究所 | Air bag structure and water depth self-adaptive air-based sound eliminating and insulating device comprising same |
-
2015
- 2015-04-16 CN CN201520227303.7U patent/CN204551779U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458736A (en) * | 2018-12-24 | 2019-03-12 | 广东美的白色家电技术创新中心有限公司 | Gas water-heater housing and gas heater |
| CN110428801A (en) * | 2019-07-10 | 2019-11-08 | 北京石油化工学院 | Silencing apparatus for explosion equipment |
| CN113734394A (en) * | 2021-08-03 | 2021-12-03 | 中国科学院声学研究所 | Air bag structure and water depth self-adaptive air-based sound eliminating and insulating device comprising same |
| CN113734394B (en) * | 2021-08-03 | 2022-08-23 | 中国科学院声学研究所 | Air bag structure and water depth self-adaptive air-based sound eliminating and insulating device comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215159 Wuzhong District East Road, Suzhou, Jiangsu, No. 31 Patentee after: Suzhou Hua Di Medical Technology Co., Ltd. Address before: 215159 Wuzhong District East Road, Suzhou, Jiangsu, No. 31 Patentee before: Suzhou Woodi Purification System Co., Ltd. |