CN202056068U - Silencing device for local ventilator - Google Patents
Silencing device for local ventilator Download PDFInfo
- Publication number
- CN202056068U CN202056068U CN2011201619453U CN201120161945U CN202056068U CN 202056068 U CN202056068 U CN 202056068U CN 2011201619453 U CN2011201619453 U CN 2011201619453U CN 201120161945 U CN201120161945 U CN 201120161945U CN 202056068 U CN202056068 U CN 202056068U
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- Prior art keywords
- silencer
- wave filter
- metal shell
- silencing device
- silencing
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Abstract
The utility model discloses a silencing device for a local ventilator, which comprises an air inlet silencing device, an air outlet silencing device and a silencing box (3). The air inlet silencing device is connected with the air outlet silencing device through the silencing box (3); the silencing box (3) comprises a metal shell (11), sound-absorbing materials (16), a perforated plate and the local ventilator (17); the air inlet silencing device and the air outlet silencing device comprise an air inlet silencer (1), an air outlet silencer (5), a contraction cavity, an expansion cavity (4) and an air collector (6); and the air inlet silencer (1) and the air outlet silencer (5) comprise annular cartridge filters. The noise reduction quantity of the silencing device is more than twice larger than that of a traditional silencer, local noise of the ventilator is reduced effectively, working environments are improved, and safety production is ensured.
Description
Technical field
The utility model relates to a kind of silencer, especially a kind of booster silencer.
Background technique
Local ventilation applied ventilator in colliery mostly is the convection rotary type explosion-proof axial flow fan at present, the noise that such blower fan produces at work is very high, according to field measurement under a plurality of mines, installed at blower fan under the situation of existing silencing apparatus, generally in the noise sound at one meter of distance blower fan on average up to 95 to 115 decibels, this noise figure is higher than country's " industrial enterprise's noise sanitary standard " and requires 10 to 30 decibels, and the noise superscale is very high.Present a part of blower fan manufacturer the import and export of blower fan silencing apparatus is installed but the noise reduction of silencing apparatus all below 10 decibels, noise reduction is very poor.
In addition, because the working space in the mine is narrow and small, noise is not easy decay, and the noise that ventilator produced can cause severe noise to pollute noise hazard staff's physiological health and mental health to working environment; And, the masking effect of fan noise is in the variation that the personnel that work in the noise circumstance can't carry out communication and can not in time judge and tackle in the surrounding working environment to be taken place because making, and because interference of noise also can make the energy of people in noise circumstance disperse, working efficiency reduces, therefore in noise circumstance, very easily produce dangerous accident, because of the human casualty accident that caused by the booster The noise of common occurrence; Therefore all be badly in need of from labor protection aspect and safety in production aspect a kind ofly the noise of booster to be reduced to the silencer efficiently that meets country's " industrial enterprise's noise sanitary standard ".
Summary of the invention
The technical problem to be solved in the present invention is: reduce the noise that booster sends at work.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: this booster silencer, comprise wind inlet silencing device, air draft silencer, silencer box, and wind inlet silencing device is connected with the air draft silencer by silencer box; Silencer box comprises metal shell, sound-absorbing material, perforated plate and places its interior booster.
As a kind of preferred structure, wind inlet silencing device comprises air intake silencing apparatus and connected first contraction chamber, and the air draft silencer comprises expansion cavity, air draft silencing apparatus, second contraction chamber and the wind collecting unit that is linked in sequence successively.First contraction chamber, second contraction chamber, expansion cavity and wind collecting unit are made up of metal shell, centrifugally glass-wool, glass fiber cloth and metal perforated plate.
Further, air intake silencing apparatus, the air draft silencing apparatus ring-shaped cylindrical wave filter that comprises metal shell and place in the metal shell and fuse by connecting plate or bar and metal shell.
Further, described wave filter is the three-decker of being made up of internal layer wave filter, middle level wave filter and outer wave filter.
Further, described wave filter is the acute angle shape structure towards air intake one end.
Further, described sound-absorbing material is glass fiber cloth and centrifugally glass-wool.
Further, silencer box comprises metal shell, sound-absorbing material, perforated plate and places its interior ventilator that in the metal shell bottom of silencer box mounting base, the top, bi-side fastens with locking.
The technique effect of implementing to bring after the technique scheme is: the noise reduction of the silencing apparatus that the noise reduction of this silencer is more traditional has improved more than two times, and average noise reduction is 25 to 35 decibels, and the wind loss of maintenance blower fan in allowed limits.The booster silencer of this invention is mainly used in the reduction noise, improves working environment, guarantees safety in production.
Description of drawings
Fig. 1 is the structural representation of booster silencer of the present utility model;
Fig. 2 is an A-A structural representation among the utility model Fig. 1;
Fig. 3 is a B-B structural representation among the utility model Fig. 1;
Fig. 4 is that wave filter C among the utility model Fig. 2 is to local amplification profile.
In Fig. 1 to Fig. 3,1-air intake silencing apparatus, 2-first contraction chamber, 3-silencer box, 4-expansion cavity, 5-air draft silencing apparatus, 6-wind collecting unit, 7-base, 8-lock card; 9-air intake, 10-discharge air flow, 11-metal shell, 12-internal layer wave filter, 13-middle level wave filter, the outer wave filter of 14-, 15-connecting plate or bar, 16-sound-absorbing material, 17-booster, 18-second contraction chamber.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
According to Fig. 1 to Fig. 4 as can be known, this booster silencer comprises wind inlet silencing device, air draft silencer, silencer box 3, and wind inlet silencing device is connected with the air draft silencer by silencer box 3; Silencer box 3 comprises metal shell 11, sound-absorbing material 16, perforated plate and places its interior booster 17.
As one of preferred structure, wind inlet silencing device comprises air intake silencing apparatus 1 and connected first contraction chamber 2, and the air draft silencer comprises expansion cavity 4, air draft silencing apparatus 5, second contraction chamber 18 and the wind collecting unit 6 that is linked in sequence successively.And first contraction chamber 2, second contraction chamber 18, expansion cavity 4 and wind collecting unit 6 are made up of metal shell 11, centrifugally glass-wool, glass fiber cloth and metal perforated plate.And air intake silencing apparatus 1, air draft silencing apparatus 5 comprise metal shell 11 and the ring-shaped cylindrical wave filter that places in the metal shell 11 and fuse by connecting plate or bar 15 and metal shell 11.Further, described wave filter is preferably the three-decker of being made up of internal layer wave filter 12, middle level wave filter 13 and outer wave filter 14.Wave filter is the acute angle shape structure towards air intake 9 one ends.Described sound-absorbing material 16 is glass fiber cloth and centrifugally glass-wool.In the metal shell 11 bottom mounting base 7 of silencer box 3, the top, bi-side is fixing with locking card 8.
The working principle of booster silencer is: utilize sound absorption, opacity technique principle, booster 17 is inserted in the silencer box 3 with sound absorption, sound insulation function, air intake silencing apparatus 1 and the air draft silencing apparatus of being made up of the wave filter of a plurality of ring-shaped cylindricals 5 installed at two ends at silencer box 3, the pressure that booster 17 operations cause makes air intake 9 enter from air intake silencing apparatus 1, form discharge air flow 10 through first contraction chamber 2, silencer box 3, expansion cavity 4, air draft silencing apparatus 5, second contraction chamber 18 and wind collecting unit 6 and discharge, with the fresh distinguished and admirable operational site of delivering to; Booster 17 noises that produce in service are also absorbed by the noise-reducing structure in above-mentioned air intake silencing apparatus 1, first contraction chamber 2, silencer box 3, expansion cavity 4, air draft silencing apparatus 5, second contraction chamber 18 simultaneously, thereby the outlet noise sound of wind collecting unit 6 is significantly reduced, making acoustic energy be converted into thermal energy consumption falls, body is reduced to the mechanical noise of extraneous radiation, realize the effect that noise reduces.
The installation process of silencer box is: booster 17 is inserted in the silencer box 3, the biside plate that closes also will be locked card 8 lockings, again first contraction chamber 2 of air intake silencing apparatus 1 one ends is connected with silencer box 3 usefulness screws, the other end of the expansion cavity 4 of air draft silencing apparatus 5 one ends with silencer box 3 connected, silencer just is in treats working state, just carries out work as long as open booster 17 back silencer boxs.
Claims (8)
1. a booster silencer comprises wind inlet silencing device, air draft silencer, silencer box (3), it is characterized in that wind inlet silencing device is connected with the air draft silencer by silencer box (3); Described silencer box (3) comprises metal shell (11), sound-absorbing material (16), perforated plate and places its interior booster (17).
2. silencer according to claim 1, it is characterized in that, described wind inlet silencing device comprises air intake silencing apparatus (1) and connected first contraction chamber (2), and described air draft silencer comprises expansion cavity (4), air draft silencing apparatus (5), second contraction chamber (18) and the wind collecting unit (6) that is linked in sequence successively.
3. silencer according to claim 2, it is characterized in that described first contraction chamber (2), second contraction chamber (18), expansion cavity (4) and wind collecting unit (6) are made up of metal shell (11), centrifugally glass-wool, glass fiber cloth and metal perforated plate.
4. silencer according to claim 2, it is characterized in that the ring-shaped cylindrical wave filter that described air intake silencing apparatus (1), air draft silencing apparatus (5) comprise metal shell (11) and place in the metal shell (11) and fuse by connecting plate or bar (15) and metal shell (11).
5. silencer according to claim 4 is characterized in that, described wave filter is the three-decker of being made up of internal layer wave filter (12), middle level wave filter (13) and outer wave filter (14).
6. according to claim 4 or 5 described silencer, it is characterized in that described wave filter is the acute angle shape structure towards air intake (9) one ends.
7. silencer according to claim 1 is characterized in that, described sound-absorbing material (16) is glass fiber cloth and centrifugally glass-wool.
8. silencer according to claim 1 is characterized in that, metal shell (11) the bottom mounting base (7) in silencer box (3), and the top, bi-side is fixing with locking card (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201619453U CN202056068U (en) | 2011-05-15 | 2011-05-15 | Silencing device for local ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201619453U CN202056068U (en) | 2011-05-15 | 2011-05-15 | Silencing device for local ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056068U true CN202056068U (en) | 2011-11-30 |
Family
ID=45016039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201619453U Ceased CN202056068U (en) | 2011-05-15 | 2011-05-15 | Silencing device for local ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056068U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196648A (en) * | 2013-04-12 | 2013-07-10 | 中国航空工业空气动力研究院 | Noise-abatement device of wind tunnel shutting test segment |
| CN104201583A (en) * | 2014-08-06 | 2014-12-10 | 国家电网公司 | Air exhaust silencing device for telescopic power grid switching station |
| CN105370630A (en) * | 2015-12-14 | 2016-03-02 | 广东溢达纺织有限公司 | Silencer |
| CN105864111A (en) * | 2016-06-01 | 2016-08-17 | 安徽三星环保装备制造有限公司 | Thermal power plant fan noise governing method |
| CN106321524A (en) * | 2016-11-18 | 2017-01-11 | 湖南核三力技术工程有限公司 | Damping, muffling and air compensation device for orifice plate |
| CN108282050A (en) * | 2017-12-12 | 2018-07-13 | 安徽德科电气科技有限公司 | A kind of high frequency unsteady flow generator |
| CN109404346A (en) * | 2018-12-20 | 2019-03-01 | 卧龙电气南阳防爆集团股份有限公司 | A kind of low noise quo of local Fan for Mine |
| CN115076129A (en) * | 2022-06-23 | 2022-09-20 | 西安交通大学 | Centrifuge diffuser with self-adaptive noise reduction function |
-
2011
- 2011-05-15 CN CN2011201619453U patent/CN202056068U/en not_active Ceased
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196648A (en) * | 2013-04-12 | 2013-07-10 | 中国航空工业空气动力研究院 | Noise-abatement device of wind tunnel shutting test segment |
| CN104201583A (en) * | 2014-08-06 | 2014-12-10 | 国家电网公司 | Air exhaust silencing device for telescopic power grid switching station |
| CN104201583B (en) * | 2014-08-06 | 2017-04-12 | 国家电网公司 | Air exhaust silencing device for telescopic power grid switching station |
| CN105370630A (en) * | 2015-12-14 | 2016-03-02 | 广东溢达纺织有限公司 | Silencer |
| CN105370630B (en) * | 2015-12-14 | 2017-11-17 | 广东溢达纺织有限公司 | Silencer |
| CN105864111A (en) * | 2016-06-01 | 2016-08-17 | 安徽三星环保装备制造有限公司 | Thermal power plant fan noise governing method |
| CN106321524A (en) * | 2016-11-18 | 2017-01-11 | 湖南核三力技术工程有限公司 | Damping, muffling and air compensation device for orifice plate |
| CN108282050A (en) * | 2017-12-12 | 2018-07-13 | 安徽德科电气科技有限公司 | A kind of high frequency unsteady flow generator |
| CN109404346A (en) * | 2018-12-20 | 2019-03-01 | 卧龙电气南阳防爆集团股份有限公司 | A kind of low noise quo of local Fan for Mine |
| CN115076129A (en) * | 2022-06-23 | 2022-09-20 | 西安交通大学 | Centrifuge diffuser with self-adaptive noise reduction function |
| CN115076129B (en) * | 2022-06-23 | 2023-04-07 | 西安交通大学 | Centrifuge diffuser with self-adaptive noise reduction function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGQIU JINQIAO ENVIRONMENTAL PROTECTION TECHNOLO Free format text: FORMER NAME: SHANGQIU JINQIAO METAL PRODUCTS CO., LTD. |
|
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Yongchao Inventor after: Liang Shifeng Inventor after: Fu Jixiang Inventor after: Jing Wanli Inventor after: Chen Yanqing Inventor before: Zhu Yongchao Inventor before: Liang Shifeng Inventor before: Fu Jixiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHU YONGCHAO LIANG SHIFENG FU JIXIANG TO: ZHU YONGCHAO LIANG SHIFENG FU JIXIANG JING WANLI CHEN YANQING |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 476000 Liu Zhuang Road West, Jinqiao Road, Henan, Shangqiu Patentee after: Shangqiu Jinqiao Environmental Protection Technology Co., Ltd. Patentee after: Zhu Yongchao Patentee after: Liang Shifeng Address before: 476000 Liu Zhuang Road West, Jinqiao Road, Henan, Shangqiu Patentee before: Shangqiu Jinqiao Metal Products Co., Ltd. Patentee before: Zhu Yongchao Patentee before: Liang Shifeng |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180606 Address after: 476000 Shangqiu, Henan, Liang Industrial Park, industrial zone, National Science and technology business incubator, building 10. Patentee after: Shangqiu Jinqiao Environmental Protection Technology Co., Ltd. Address before: 476000 Liu Zhuang Road West, north of Jinqiao Road, Shangqiu, Henan Co-patentee before: Zhu Yongchao Patentee before: Shangqiu Jinqiao Environmental Protection Technology Co., Ltd. Co-patentee before: Liang Shifeng |
|
| TR01 | Transfer of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20180712 Decision number of declaring invalidation: 36580 Granted publication date: 20111130 |
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| IW01 | Full invalidation of patent right |