CN201786771U - Fan silencer - Google Patents
Fan silencer Download PDFInfo
- Publication number
- CN201786771U CN201786771U CN2010205332299U CN201020533229U CN201786771U CN 201786771 U CN201786771 U CN 201786771U CN 2010205332299 U CN2010205332299 U CN 2010205332299U CN 201020533229 U CN201020533229 U CN 201020533229U CN 201786771 U CN201786771 U CN 201786771U
- Authority
- CN
- China
- Prior art keywords
- fan
- plate
- rectangular case
- connecting plate
- blower fan
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the fan silencing technology, in particular to a fan silencer, which includes a rectangular casing and is characterized in that groove-shaped insert plates are arranged at two ends of a short edge of the rectangular casing; each insert plate is a bent mesh piece structure with bending edges at two ends and uniformly-distributed through holes; two cavities formed by the rectangular casing and concave surfaces of the two groove-shaped insert plates are filled with microporous rubber-and-plastic sound-proof cotton; and a conical-shell air flue is connected with the lower end of the rectangular casing. The fan silencer solves the problem that the noise of the fan in the traditional feed-processing equipment is loud, and is mainly applied in the improvement of the fan silencing technology.
Description
(1). technical field: the utility model relates to the blower fan noise elimination technique, especially a kind of blower fan silencing apparatus.
(2). background technique: the noise of blower fan has greater environmental impacts, especially in the feed processing industry, the blower fan that is disposed mostly is centrifugal fan, fan noise is 60-80 decibels, the blower fan consumption of one cover mixed fodder process equipment reaches several, and mounting arrangements is all concentrated relatively, and number typhoon machine is bigger to influence of environmental noise when working simultaneously.
(3). summary of the invention: the purpose of this utility model is exactly the bigger problem of fan noise in the existing feed-processing equipment of will deblocking, and a kind of blower fan silencing apparatus is provided.
Concrete scheme of the present utility model is: a kind of blower fan silencing apparatus, it has rectangular case, it is characterized in that: the minor face two ends in rectangular case are furnished with the flute profile plate, described flute profile plate is provided with the uniform open-work bending net chip architecture of bending edges for two ends up and down, is filled with micropore rubber and plastic acoustical cotton in two cavitys that rectangular case and two flute profile plate concave surfaces are constituted; Be connected with the conical shell air channel in the lower end of rectangular case.
The upper end in conical shell described in the utility model air channel is provided with connecting plate, the center of connecting plate has vent hole, the lower end of the top and rectangular case of connecting plate is connected, be connected with the rectangular cross-section cone shell below the connecting plate, lower end at the rectangular cross-section conical shell is connected with flange plate, and the center of flange plate has exhaust outlet.
Working principle of the present utility model is: the mounting flange 7 in the blower fan silencing apparatus is connected with the exhaust outlet of centrifugal blower, the noise at fan outlet place roughly is divided into the noise of high, medium and low three kinds of frequencies, during blower fan work, along the fan outlet direction propagate in, low-frequency noise is when the conical shell air channel 5 by the blower fan silencing apparatus, the abrupt change of cross-section because of 8 places of the mounting flange in the conical shell air channel 5, in, low-frequency noise reflects at the abrupt interface place, reflection and interference phenomenon, make to blower fan silencing apparatus ventilated port 2 directions propagate in, low-frequency noise obtains decay; The height of propagating along the fan outlet direction, mid-frequency noise are by the rectangular case 4 in the blower fan silencing apparatus time, high, mid-frequency noise is subjected to the surface friction drag of micropore rubber and plastic acoustical cotton and the effect of viscous resistance, make height, the mid-frequency noise propagated to blower fan silencing apparatus ventilated port 2 directions obtain decay, finally the noise of propagating from fan outlet passes through the attenuation of blower fan silencing apparatus, and the noise that propagates into the environment from blower fan silencing apparatus ventilated port 2 obtains descending.
The utility model is used for several typhoon machines of feed-processing equipment, and through practice test, the performance index that the utility model reduces fan noise reach its intended purposes fully, and the unit noise is reduced to 50-60 decibels from 60-80 decibels; The utility model bigger problem of fan noise in the existing feed-processing equipment of having deblocked, and show and have characteristics such as simple in structure, easy for installation, excellent noise reduction effect and long service life, the utility model also can be used for the noise elimination noise reduction of other Fan Equipment.
(4). description of drawings:
Fig. 1: the utility model structural profile master looks schematic representation;
Fig. 2: schematic representation is looked on the utility model structural profile right side;
Fig. 3: the utility model structure schematic top plan view;
Fig. 4: flute profile plate structure master looks schematic representation;
Fig. 5: schematic representation is looked on the flute profile plate structure right side;
Fig. 6: conical shell air flue structure section master looks schematic representation;
Fig. 7: conical shell air flue structure schematic top plan view;
Among the figure: 1-rubber and plastic acoustical cotton, 2-ventilated port, 3-flute profile plate, 4-rectangular case, 5-conical shell air channel, 6-connecting plate, 7-rectangular cross-section cone shell, 8-flange plate, 9--exhaust outlet, 10--vent hole.
(5). embodiment:
Embodiment's (seeing Fig. 1, Fig. 2, Fig. 3 for details): a kind of blower fan silencing apparatus, it has rectangular case 4, particularly: the minor face two ends in rectangular case 4 are furnished with flute profile plate 3, the flute profile plate 3 of present embodiment is provided with the uniform open-work bending net chip architecture of bending edges for two ends up and down, is filled with micropore rubber and plastic acoustical cotton 1 in two cavitys that rectangular case 4 and two flute profile plate 3 concave surfaces are constituted; Be connected with conical shell air channel 5 in the lower end of rectangular case 4, the upper end in the conical shell air channel 5 of present embodiment is provided with connecting plate 6, the center of connecting plate 6 has rectangle vent hole 10, the lower end of the top and rectangular case 4 of connecting plate 6 is connected, be connected with rectangular cross-section cone shell 7 below the connecting plate 6, be connected with flange plate 8 in the lower end of rectangular cross-section conical shell 7, the center of flange plate 8 has rectangular opening exhaust outlet 9(and sees Fig. 6, Fig. 7 for details).
Claims (2)
1. blower fan silencing apparatus, it has rectangular case, it is characterized in that: the minor face two ends in rectangular case are furnished with the flute profile plate, described flute profile plate is provided with the uniform open-work bending net chip architecture of bending edges for two ends up and down, is filled with micropore rubber and plastic acoustical cotton in two cavitys that rectangular case and two flute profile plate concave surfaces are constituted; Be connected with the conical shell air channel in the lower end of rectangular case.
2. a kind of blower fan silencing apparatus according to claim 1, it is characterized in that: the upper end in described conical shell air channel is provided with connecting plate, the center of connecting plate has vent hole, the lower end of the top and rectangular case of connecting plate is connected, be connected with the rectangular cross-section cone shell below the connecting plate, lower end at the rectangular cross-section conical shell is connected with flange plate, and the center of flange plate has exhaust outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205332299U CN201786771U (en) | 2010-09-17 | 2010-09-17 | Fan silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205332299U CN201786771U (en) | 2010-09-17 | 2010-09-17 | Fan silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786771U true CN201786771U (en) | 2011-04-06 |
Family
ID=43818736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205332299U Expired - Fee Related CN201786771U (en) | 2010-09-17 | 2010-09-17 | Fan silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786771U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536916A (en) * | 2010-12-09 | 2012-07-04 | 贵州省鼓风机厂 | High-flow ventilator silencer and manufacturing method thereof |
| CN103089704A (en) * | 2011-10-31 | 2013-05-08 | Ge医疗系统环球技术有限公司 | Fan assembly and electric device with same |
| CN105570200A (en) * | 2014-11-06 | 2016-05-11 | 际华三五零六纺织服装有限公司 | Noise reduction silencer for air outlet of dust removal fan |
| CN106368986A (en) * | 2016-12-06 | 2017-02-01 | 姚均甫 | Fan muffler |
| CN106382242A (en) * | 2016-12-06 | 2017-02-08 | 姚均甫 | High-pressure fan silencer |
| CN109505808A (en) * | 2018-12-25 | 2019-03-22 | 广东美的白色家电技术创新中心有限公司 | Fans silencer and fan noise elimination system |
| CN111554260A (en) * | 2020-05-09 | 2020-08-18 | 吴光明 | Ventilation and noise reduction module |
| CN114738327A (en) * | 2022-05-13 | 2022-07-12 | 山东省章丘鼓风机股份有限公司 | Silencer with flow guide cone |
-
2010
- 2010-09-17 CN CN2010205332299U patent/CN201786771U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536916A (en) * | 2010-12-09 | 2012-07-04 | 贵州省鼓风机厂 | High-flow ventilator silencer and manufacturing method thereof |
| CN103089704A (en) * | 2011-10-31 | 2013-05-08 | Ge医疗系统环球技术有限公司 | Fan assembly and electric device with same |
| CN103089704B (en) * | 2011-10-31 | 2017-03-01 | Ge医疗系统环球技术有限公司 | Fan component and the electrical equipment with this fan component |
| CN105570200A (en) * | 2014-11-06 | 2016-05-11 | 际华三五零六纺织服装有限公司 | Noise reduction silencer for air outlet of dust removal fan |
| CN105570200B (en) * | 2014-11-06 | 2019-07-26 | 际华三五零六纺织服装有限公司 | A kind of dedusting fan air outlet noise-reduction device |
| CN106368986A (en) * | 2016-12-06 | 2017-02-01 | 姚均甫 | Fan muffler |
| CN106382242A (en) * | 2016-12-06 | 2017-02-08 | 姚均甫 | High-pressure fan silencer |
| CN109505808A (en) * | 2018-12-25 | 2019-03-22 | 广东美的白色家电技术创新中心有限公司 | Fans silencer and fan noise elimination system |
| CN111554260A (en) * | 2020-05-09 | 2020-08-18 | 吴光明 | Ventilation and noise reduction module |
| CN111554260B (en) * | 2020-05-09 | 2023-01-17 | 安徽三星环保工程有限公司 | Ventilation and noise reduction module |
| CN114738327A (en) * | 2022-05-13 | 2022-07-12 | 山东省章丘鼓风机股份有限公司 | Silencer with flow guide cone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201786771U (en) | Fan silencer | |
| CN201496128U (en) | Wedge staggered silencer | |
| CN210443263U (en) | Muffler device | |
| CN105390131A (en) | Muffling device and electromechanical device | |
| CN212129524U (en) | Sound insulation and noise reduction device of air conditioner room | |
| CN202531449U (en) | Low-noise fan component for inverter power supply and inverter power supply using component | |
| CN102385857B (en) | Noise reduction and sound absorption device and using method thereof and paver | |
| CN201723505U (en) | Silencer used for fan of dust remover | |
| CN214402251U (en) | Curtain type sound-absorbing wedge structure | |
| CN201615090U (en) | Sound insulator for water supply pump in district | |
| CN203783969U (en) | Centrifugal volute and air conditioner | |
| CN203532197U (en) | Sound elimination plate of resistive plate type sound eliminator | |
| CN202301217U (en) | Sound absorption structure of soundproof housing | |
| CN209743255U (en) | Range hood wind cabinet and range hood | |
| CN113417225A (en) | Sound shielding device | |
| CN106766084B (en) | Noise reduction structure, fan coil assembly and air cabinet unit | |
| CN218645757U (en) | Sound insulation and noise reduction structure for three-in-one dehumidification heat pump | |
| CN210511817U (en) | Fume exhaust fan | |
| CN108286533B (en) | Silencer for air inlet of axial flow fan | |
| CN211628684U (en) | Sound-absorbing and noise-removing device | |
| CN201786767U (en) | Honeycomb silencer | |
| CN111102248A (en) | Silencing and noise-reducing device for workshop of factory building | |
| CN203516219U (en) | Novel sleeve type sound eliminator | |
| CN109896556A (en) | Water purifier | |
| CN210713307U (en) | Mute assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |