CN202612215U - Press-in type axial flow local ventilator side inlet wind noise-reducing sound-eliminating device used in coal mine downhole - Google Patents
Press-in type axial flow local ventilator side inlet wind noise-reducing sound-eliminating device used in coal mine downhole Download PDFInfo
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- CN202612215U CN202612215U CN 201220274663 CN201220274663U CN202612215U CN 202612215 U CN202612215 U CN 202612215U CN 201220274663 CN201220274663 CN 201220274663 CN 201220274663 U CN201220274663 U CN 201220274663U CN 202612215 U CN202612215 U CN 202612215U
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Abstract
The utility model provides a press-in type axial flow local ventilator side inlet wind noise-reducing sound-eliminating device used in coal mine downhole. The press-in type axial flow local ventilator side inlet wind noise-reducing sound-eliminating device comprises a flange connected with an air inlet end of a ventilator, a flow concentration barrel and a flow guiding device, wherein a flow guiding cap bracket in a mouse cage shape is mounted on the outer end of the flow concentration barrel, a flow guiding cap is mounted on the outer end face of the flow guiding cap bracket, an air inlet mesh shield is installed on the periphery face of the flow guiding cap bracket in the mouse cage shape, an axial flow guiding cone is installed in the center of the flow concentration barrel, and damping materials are mounted inside the flow guiding cone and the flow guiding cap. Wind flow converges with the wind flow in side face along the curve of the flow guiding cap and enters into the noise-reducing sound-eliminating device from the outer peripheral direction of the flow guiding cap bracket in the mouse cage shape, so that noise can be reduced by 10 to 15 decihappen to bel (dB).
Description
Affiliated technical field
The utility model relates to a kind of silencer of mining partial ventilator, is the forced axial flow local ventilation of a kind of underground mine use pusher side air intake noise reduction silencer specifically.
Background technique
Forced axial flow booster (portable blower) is the capital equipment of coal mine roadway air-supply, oxygenation, gas-removing.Noise reached more than 100 decibel when existing portable blower normally moved, and this physical impairment to down-hole miner is bigger; Long-term work, the miner can produce tinnitus, dizziness, weakness of limbs, absent minded, occupation disease such as ignition for no reason easily, this phenomenon is troubling down-hole miner for a long time, can't solve always.In order to address this problem, the researcher generally increases mode noise reductions such as resistance through sound absorption, but its most complex manufacturing technology are difficult to carry out.
Summary of the invention
The purpose of the utility model is exactly to overcome oneself the deficiency in the technology is arranged, and provides a kind of simple in structure, is convenient to maintenance, and effective runtime is long, the forced axial flow local ventilation of the underground mine use of good muffling effect pusher side air intake noise reduction silencer.
The utility model solves the technological scheme that its technical problem adopted: design the forced axial flow local ventilation of a kind of underground mine use pusher side air intake noise reduction silencer, by forming with ventilator inlet end flange connecting, afflux tube and flow guide device.The fair water cone support of mouse cage shape is equipped with in afflux tube outer end; The fair water cone support is equipped with fair water cone on the exterior edge face; On the mouse cage shape fair water cone support outer circumferential face air inlet guard is installed, axial flow deflecting cone is equipped with at afflux tube center, and sound absorbing material is equipped with in flow deflecting cone and fair water cone inside.Fair water cone is for approximate hemispherical, on itself and the mouse cage shape fair water cone support exterior edge face reticulate perforation plate is housed also.The flow deflecting cone surface is processed by reticulate perforation plate, and breech face is detachable, flow deflecting cone and the fair water cone inside glass silk flosssilk wadding sound absorbing material of packing into.
The beneficial effect of the utility model is; Distinguished and admirable curve along fair water cone; Get into the noise reduction silencer with distinguished and admirable converging from mouse cage shape fair water cone support excircle direction of side, a part of reflecting background is sucked by fair water cone and water conservancy diversion noise reduction awl, the direction that distinguished and admirable edge is parallel to the ventilator running shaft derives; Through test comparison, noise can reduce 10-15dB.
Description of drawings
Fig. 1 is the internal structure generalized section of the utility model.
Fig. 2 is the axial view of the utility model.
Embodiment
Make the forced axial flow local ventilation of underground mine use pusher side air intake noise reduction silencer, by forming with ventilator inlet end flange connecting 6, afflux tube 5 and flow guide device.The fair water cone support 4 of mouse cage shape is equipped with in afflux tube 5 outer ends; The fair water cone support is equipped with fair water cone 2 on 4 exterior edge faces; On mouse cage shape fair water cone support 4 outer circumferential faces air inlet guard 3 is installed, axial flow deflecting cone 7 is equipped with at afflux tube 5 centers, and flow deflecting cone 7 is equipped with sound absorbing material 8,1 with fair water cone 2 inside.Fair water cone 2 is for approximate hemispherical, on itself and mouse cage shape fair water cone support 4 exterior edge faces reticulate perforation plate is housed also.Flow deflecting cone 7 surfaces are processed by reticulate perforation plate, and breech face is detachable, flow deflecting cone 7 and the fair water cone 2 inside glass silk flosssilk wadding sound absorbing material of packing into.Distinguished and admirable curve along fair water cone 2 gets into the noise reduction silencer with distinguished and admirable converging from mouse cage shape fair water cone support 4 excircle directions of side, and noise can reduce 10-15dB.
Claims (4)
1. the forced axial flow local ventilation of underground mine use pusher side air intake noise reduction silencer; By forming with ventilator inlet end flange connecting, afflux tube and flow guide device; It is characterized in that: the fair water cone support of mouse cage shape is equipped with in afflux tube outer end, and the fair water cone support is equipped with fair water cone on the exterior edge face, on the mouse cage shape fair water cone support outer circumferential face air inlet guard is installed; Axial flow deflecting cone is equipped with at afflux tube center, and sound absorbing material is equipped with in flow deflecting cone and fair water cone inside.
2. the forced axial flow local ventilation of underground mine use as claimed in claim 1 pusher side air intake noise reduction silencer is characterized in that: fair water cone is for approximate hemispherical, on itself and the mouse cage shape fair water cone support exterior edge face reticulate perforation plate is housed also.
3. the forced axial flow local ventilation of underground mine use as claimed in claim 1 pusher side air intake noise reduction silencer, it is characterized in that: the flow deflecting cone surface is processed by reticulate perforation plate, and breech face is detachable.
4. the forced axial flow local ventilation of underground mine use as claimed in claim 1 pusher side air intake noise reduction silencer is characterized in that: the inner sound absorbing material of flow deflecting cone and fair water cone is the glass silk flosssilk wadding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274663 CN202612215U (en) | 2012-06-02 | 2012-06-02 | Press-in type axial flow local ventilator side inlet wind noise-reducing sound-eliminating device used in coal mine downhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274663 CN202612215U (en) | 2012-06-02 | 2012-06-02 | Press-in type axial flow local ventilator side inlet wind noise-reducing sound-eliminating device used in coal mine downhole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612215U true CN202612215U (en) | 2012-12-19 |
Family
ID=47345919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220274663 Expired - Lifetime CN202612215U (en) | 2012-06-02 | 2012-06-02 | Press-in type axial flow local ventilator side inlet wind noise-reducing sound-eliminating device used in coal mine downhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612215U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423211A (en) * | 2013-08-29 | 2013-12-04 | 中国矿业大学 | Mine pressure fan silencer |
| CN103644132A (en) * | 2013-12-26 | 2014-03-19 | 山西巨龙风机有限公司 | Mining local ventilation machine with detachable plastic structure |
| CN105090130A (en) * | 2014-05-13 | 2015-11-25 | 枣庄福德通用机械有限公司 | External diameter air intake noise reduction mechanism for axial flow fan |
| CN105257599A (en) * | 2015-10-14 | 2016-01-20 | 灌阳县鸿运矿山设备有限公司 | Mine ventilator |
| CN106704226A (en) * | 2017-01-26 | 2017-05-24 | 许彐琼 | Fan |
| CN108286533A (en) * | 2017-01-09 | 2018-07-17 | 中国科学院声学研究所 | A kind of axial flow blower air inlet silencer |
-
2012
- 2012-06-02 CN CN 201220274663 patent/CN202612215U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423211A (en) * | 2013-08-29 | 2013-12-04 | 中国矿业大学 | Mine pressure fan silencer |
| CN103423211B (en) * | 2013-08-29 | 2016-05-18 | 中国矿业大学 | A kind of mining blower silencer |
| CN103644132A (en) * | 2013-12-26 | 2014-03-19 | 山西巨龙风机有限公司 | Mining local ventilation machine with detachable plastic structure |
| CN105090130A (en) * | 2014-05-13 | 2015-11-25 | 枣庄福德通用机械有限公司 | External diameter air intake noise reduction mechanism for axial flow fan |
| CN105257599A (en) * | 2015-10-14 | 2016-01-20 | 灌阳县鸿运矿山设备有限公司 | Mine ventilator |
| CN108286533A (en) * | 2017-01-09 | 2018-07-17 | 中国科学院声学研究所 | A kind of axial flow blower air inlet silencer |
| CN108286533B (en) * | 2017-01-09 | 2020-06-16 | 中国科学院声学研究所 | Silencer for air inlet of axial flow fan |
| CN106704226A (en) * | 2017-01-26 | 2017-05-24 | 许彐琼 | Fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
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| CX01 | Expiry of patent term |