CN106321474A - Ultra-low-noise mining local fan - Google Patents
Ultra-low-noise mining local fan Download PDFInfo
- Publication number
- CN106321474A CN106321474A CN201610918954.XA CN201610918954A CN106321474A CN 106321474 A CN106321474 A CN 106321474A CN 201610918954 A CN201610918954 A CN 201610918954A CN 106321474 A CN106321474 A CN 106321474A
- Authority
- CN
- China
- Prior art keywords
- side air
- flange
- noise
- shell
- silencing
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An ultra-low-noise mining local fan comprises an outlet silencer, a main machine body and an inlet silencer. The main machine body comprises a motor, an impeller, an inner shell and an outer shell. The inlet silencer comprises a flow collector, a silencing wall, a silencing barrel, a side air inlet and an air inlet cover plate. The ultra-low-noise mining local fan has the beneficial effects that the inner shell and the outer shell are connected and fixed through elastic materials, and radiation noise of the main machine outer shell is greatly lowered; the inlet silencer achieves the purpose of primary silencing through section area changes and sudden expansion or shrinkage of the pipeline section; when sound waves enter the silencing wall, one part of sound energy is subjected to friction in gaps of porous materials and is converted into heat energy to be dissipated, and therefore the purpose of secondary silencing is achieved; after the silencing wall is blocked by dust, the silencing wall can be very conveniently pulled out to be cleaned or replaced, the silencing effect is kept, and the overhauling time is short; and after part of sound waves at the position of a sound source reach a side air inlet hole plate, one part of the sound waves are absorbed by the silencing material, and accordingly the purpose of tertiary silencing is achieved.
Description
Technical field
The present invention relates to a kind of mine ventilation equipment, be specifically related to a kind of ultra-low noise quo of local Fan for Mine.
Background technology
Mine ventilation system is an important component part of pit mining, is the basic guarantee of mine safety production, ore deposit
With to rotation booster (hereinafter referred to as local fan) effect be in Mine Production, continually by fresh air
Being transported to mining face under mine, various poisonous, the harmful gas in down-hole and mine dust are breathed and diluted and get rid of to staff, creates good
Working environment, ensure underground operators healthy and safety.
The local fan that domestic production at present uses mainly has the series such as FBD, FB, FBDC, FBY, the motor of these blower fans
All using two grades of explosion separation motors, motor speed is high, and aerodynamic noise is big；Most types are equipped with importing and exporting acoustic filter, but eliminate the noise and imitate
Fruit is general, it is impossible to meet user's requirement.
Summary of the invention
The purpose of the present invention is contemplated to reduce further the noise of blower fan, it is provided that a kind of ultra-low noise mining partial ventilates
Machine.
For achieving the above object, the technical solution used in the present invention is:
A kind of ultra-low noise quo of local Fan for Mine, including exit silencer, main body, suction muffler, it is characterised in that: main
Body includes that motor, impeller, inner shell, shell, described inner shell include front inner casing, rear inner casing, described shell include upper shell,
Lower house, has impeller, has motor in rear inner casing in front inner casing, motor has flange, front inner casing and rear inner casing respectively
It is connected with motor by flange, inner casing has anti-rotation sheet, be fixed together by several rubber bars between inner shell and shell；
Having two rubber slabs on lower house, rubber slab contacts prevention inner casing and rotates with anti-rotation sheet；At upper shell, lower house two ends
Having rubber blanket on flange inner face, rubber blanket limits inner shell axially-movable；Upper shell, lower house are bolted, and faying face pastes
Sealing gasket seals.
Ultra-low noise quo of local Fan for Mine in accordance with the above, it is characterised in that: described suction muffler includes
Current collector, noise reduction wall, acoustic filter cylinder, side air admission mouth and air inlet cover plate, described current collector is propped up by the first flange, fair water cone
Support, fair water cone and current collector cylinder are welded；Described acoustic filter cylinder is by the second flange, connecting plate and three-flange welding
Become；Current collector and acoustic filter cylinder are to connect by the way of welding, and acoustic filter cylinder is built with the noise reduction wall that can extract out, and noise reduction is within the walls
Having quieter material, described noise elimination quieter material within the walls is that glass wool cloth wraps up glass silk flosssilk wadding, and noise elimination wall is fixed by perforated plate
Welding fabrication；Described side air admission mouth is to be supported by the 4th flange, side air intake cylinder, side air intake orifice plate, guide shell and side air intake
It is welded；Described side air intake orifice plate is punch forming part, is plane in the middle part of it, and periphery is sphere, and side air intake orifice plate has
Several apertures；Being filled with quieter material in cavity between side air intake orifice plate and air inlet cover plate, deadener is glass fiber
Cloth parcel glass silk flosssilk wadding；Described side air admission mouth by the second Flange joint on acoustic filter cylinder；Described noise elimination wall
Be connected on acoustic filter cylinder by three-flange, pull down noise reduction wall the most capable of washing or change quieter material.
Ultra-low noise quo of local Fan for Mine in accordance with the above, it is characterised in that: described noise reduction noise reduction within the walls
Material is fixed by Plate Welding framework for foaming deadener；In the described cavity between side air intake orifice plate and air inlet cover plate
The deadener filled is foaming deadener.It addition, above-described quieter material can also is that other noise reductions such as silencing cotton
Material.
Ultra-low noise quo of local Fan for Mine in accordance with the above, it is characterised in that: described air inlet cover plate is to use
Screw is fixed on the 4th flange, pulls down air inlet cover plate the most capable of washing or change the quieter material filled in cavity.
The present invention compared with prior art provides the benefit that: outside the noise main source during work of existing blower fan is with main frame
The radiated noise of shell and import noise, be connected by elastomeric material fixing, considerably reduce between inner shell of the present invention and shell
The radiated noise of host housing；Suction muffler is changed by area of section, expands suddenly by means of pipeline section or shrinks, making
Sound wave along some frequency of pipe transmmision reflects back to Sounnd source direction at sudden change, thus reaches the purpose once eliminated the noise；
Having the noise reduction wall that can extract out in import acoustic filter, when sound wave enters noise elimination wall, a part of acoustic energy is in the space of porous material
Rub and change into thermal energy consumption and dissipate, thus reach secondary noise elimination purpose；Noise reduction wall can be taken out after being blocked by dust very easily
Going out and clean or change, keep erasure effect, the repair time is short；Acoustic wave segment at sound source arrives the side air intake on side air admission mouth
After orifice plate, a part is reflected back toward Sounnd source direction, and another part is absorbed by deadener, thus reaches three noise elimination purposes.
Accompanying drawing explanation
Fig. 1 is equipped with the schematic diagram of the ultra-low noise quo of local Fan for Mine of two-stage main body machine 2；
Fig. 2 is the structural representation of embodiment of the present invention ultra-low noise quo of local Fan for Mine main body machine 2；
Fig. 3 is Fig. 2 motor 13, impeller 11, the structural representation of inner shell 5；
Fig. 4 is the structural representation of embodiment of the present invention suction muffler 3；
Fig. 5 is the structural representation that each parts of Fig. 4 link together；
Icon illustrates: 1. exit silencer；2. main body；3. suction muffler；4. shell；5. inner shell；6. upper shell；
7. lower house；8. rubber slab；9. rubber bar；10. rubber blanket；11. impellers；Inner casing before 12.；13. motors；14.
Rear inner casing；15. anti-rotation sheets.31. current collectors；32. noise reduction walls；33. acoustic filters；34. side air admission mouths；35. air intakes
Velar plate；36. first flanges；37. fair water cones support；38. fair water cones；39. current collector cylinders；40. connecting plates；41.
Three-flange；43. second flanges；44. the 4th flanges；45. side air intake cylinders；46. cavitys；47. side air intake orifice plates；48. lead
Flow cartridge；49. side air intakes support.
Detailed description of the invention
Fig. 1 is equipped with the schematic diagram of the ultra-low noise quo of local Fan for Mine of two-stage main body machine 2；Fig. 2 is that the present invention implements
The structural representation of example ultra-low noise quo of local Fan for Mine main body machine 2；Fig. 3 is Fig. 2 motor 13, impeller 11, the structure of inner shell 5
Schematic diagram；Ultra-low noise quo of local Fan for Mine of the present invention, including exit silencer 1, main body 2, suction muffler 3, it is special
Levy and be: main body 2 includes that motor 13, impeller 11, inner shell 5, shell 4, described inner shell 5 include front inner casing 12, rear inner casing
14, described shell 4 includes upper shell 6, lower house 7, has impeller 11 in front inner casing 12, has motor 13 in rear inner casing 14, electricity
Having flange on machine 13, front inner casing 12 and rear inner casing 14 are connected with motor 13 by flange respectively, and front inner casing 12 is interior with rear
Flange joint is used between casing 14；Anti-rotation sheet 15 is had on inner casing 14, solid by several rubber bars 9 between inner shell 5 and shell 4
It is scheduled on together；Having two rubber slabs 8 on lower house 7, rubber slab 8 contacts prevention inner casing 14 and rotates with anti-rotation sheet 15；Upper
Housing 6, lower house 7 two ends flange inner face on have rubber blanket 10, rubber blanket 10 to limit inner shell 5 axially-movable；Upper shell 6, under
Housing 7 is bolted, and faying face patch PE sealing gasket seals；Fig. 4 is the structural representation of embodiment of the present invention suction muffler 3
Figure；Fig. 5 is the structural representation that each parts of Fig. 4 link together；Described suction muffler 3 includes current collector 31, noise reduction wall
32, acoustic filter cylinder 33, side air admission mouth 34 and air inlet cover plate 35, described current collector 31 is propped up by the first flange 36, fair water cone
Support 37, fair water cone 38 and current collector cylinder 39 are welded；Described acoustic filter cylinder 33 is by the second flange 43, connecting plate 40 and the 3rd
Flange 41 is welded；Current collector 31 and acoustic filter cylinder 33 are to connect by the way of welding, and acoustic filter cylinder 33 is built with taking out
The noise reduction wall 32 gone out, having quieter material, the described quieter material in noise elimination wall 32 in noise reduction wall 32 is that glass wool cloth wraps up glass
Glass silk flosssilk wadding, noise elimination wall 32 is fixed welding fabrication by perforated plate；Described side air admission mouth 34 is by the 4th flange 44, side air intake cylinder
45, side air intake orifice plate 47, guide shell 48 and side air intake support 49 are welded；Described side air intake orifice plate 47 is punch forming
Part, is plane in the middle part of it, and periphery is sphere, and side air intake orifice plate 47 has several apertures；Side air intake orifice plate 47 and air intake lid
Being filled with quieter material in cavity 46 between plate 35, deadener is that glass wool cloth wraps up glass silk flosssilk wadding；Described laterally enters
Air port 34 is connected on acoustic filter cylinder 33 by the second flange 43；Described noise elimination wall 32 is to be connected by three-flange 41
On acoustic filter cylinder 33, pull down noise reduction wall 32 that is capable of washing or change quieter material.
Ultra-low noise quo of local Fan for Mine in accordance with the above, it is characterised in that: disappearing in described noise reduction wall 32
Sound material is fixed by Plate Welding framework for foaming deadener；Between described side air intake orifice plate 47 and air inlet cover plate 35
The deadener filled in cavity 46 is foaming deadener.It addition, above-described quieter material can also is that silencing cotton etc.
Other quieter materials.
Ultra-low noise quo of local Fan for Mine in accordance with the above, it is characterised in that: described air inlet cover plate 35 is
Being screwed on the 4th flange 44, pulling down air inlet cover plate 35 can the capable of washing or interior noise reduction filled of replacing cavity 46
Material.
During blower fan work, the noise major part that impeller produces, because of the stop of inner casing 5, is propagated along air channel, partial noise
By inner casing 5 to external radiation, owing to inside and outside casing is not rigidly connected, overhead speaker effect will not be formed, the noise radiated
Reflected consumption further by outer cage, therefore, the noise appearing outer cage can significantly reduce, and considerably reduces fan noise.
Present invention pipeline section area at fair water cone 38, current collector cylinder 39, guide shell 48 diminishes, and other position pipelines cut
Face area is big, expands suddenly by means of pipeline section or shrinks, make the sound wave of some frequency along pipe transmmision at sudden change to
Sounnd source direction reflects back, thus reaches the purpose once eliminated the noise；There is the noise reduction wall 32 that can extract out in import acoustic filter 3, work as sound
When ripple enters noise elimination wall, a part of acoustic energy rubs in the space of porous material and changes into thermal energy consumption and dissipate, thus reaches two
Secondary noise elimination purpose；Noise reduction wall 32 can be extracted cleaning very easily out or change after being blocked by dust, keep erasure effect, during maintenance
Between short；After acoustic wave segment at sound source arrives the side air intake orifice plate 47 on side air admission mouth 34, a part is reflected back toward sound source side
To, another part is absorbed by deadener, thus reaches three noise elimination purposes.
The present embodiment illustrates two-stage main body 2, and ultra-low noise quo of local Fan for Mine of the present invention can also be equipped with list
Level main body or the blower fan of two-stage above quantity main body.
Claims (4)
1. a ultra-low noise quo of local Fan for Mine, including exit silencer, main body, suction muffler, it is characterised in that:
Main body includes that motor, impeller, inner shell, shell, described inner shell include front inner casing, rear inner casing, and described shell includes upper casing
Body, lower house, have impeller, have motor in rear inner casing in front inner casing, motor has flange, front inner casing and rear inner casing divide
Tong Guo not be connected with motor by flange, inner casing has anti-rotation sheet, between inner shell and shell, be fixed on one by several rubber bars
Rise；Having two rubber slabs on lower house, rubber slab contacts prevention inner casing and rotates with anti-rotation sheet；At upper shell, lower house two
Having rubber blanket on the flange inner face of end, rubber blanket limits inner shell axially-movable；Upper shell, lower house are bolted, in conjunction with
Face patch sealing gasket seals.
Ultra-low noise quo of local Fan for Mine the most according to claim 1, it is characterised in that: described suction muffler bag
Including current collector, noise reduction wall, acoustic filter cylinder, side air admission mouth and air inlet cover plate, described current collector is by the first flange, fair water cone
Support, fair water cone and current collector cylinder are welded；Described acoustic filter cylinder is by the second flange, connecting plate and three-flange welding
Become；Current collector and acoustic filter cylinder are to connect by the way of welding, and acoustic filter cylinder is built with the noise reduction wall that can extract out, and noise reduction is within the walls
Having quieter material, described noise elimination quieter material within the walls is that glass wool cloth wraps up glass silk flosssilk wadding, and noise elimination wall is fixed by perforated plate
Welding fabrication；Described side air admission mouth is to be supported by the 4th flange, side air intake cylinder, side air intake orifice plate, guide shell and side air intake
It is welded；Described side air intake orifice plate is punch forming part, is plane in the middle part of it, and periphery is sphere, and side air intake orifice plate has
Several apertures；Being filled with quieter material in cavity between side air intake orifice plate and air inlet cover plate, deadener is glass fiber
Cloth parcel glass silk flosssilk wadding；Described side air admission mouth by the second Flange joint on acoustic filter cylinder；Described noise elimination wall
Be connected on acoustic filter cylinder by three-flange, pull down noise reduction wall the most capable of washing or change quieter material.
Ultra-low noise quo of local Fan for Mine the most according to claim 2, it is characterised in that: described noise reduction disappearing within the walls
Sound material is fixed by Plate Welding framework for foaming deadener；The described cavity between side air intake orifice plate and air inlet cover plate
The deadener of interior filling is foaming deadener.
4. according to the ultra-low noise quo of local Fan for Mine described in Claims 2 or 3, it is characterised in that: described air intake lid
Plate is screwed on the 4th flange, pulls down air inlet cover plate the most capable of washing or change the noise reduction material filled in cavity
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918954.XA CN106321474B (en) | 2016-10-21 | 2016-10-21 | A kind of ultra-low noise quo of local Fan for Mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918954.XA CN106321474B (en) | 2016-10-21 | 2016-10-21 | A kind of ultra-low noise quo of local Fan for Mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321474A true CN106321474A (en) | 2017-01-11 |
| CN106321474B CN106321474B (en) | 2018-10-09 |
Family
ID=57817999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610918954.XA Active CN106321474B (en) | 2016-10-21 | 2016-10-21 | A kind of ultra-low noise quo of local Fan for Mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN106321474B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105131A (en) * | 2018-02-12 | 2018-06-01 | 山西巨龙风机有限公司 | A kind of low noise local ventilation machine host of multilayer isolation |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976393A (en) * | 1975-08-27 | 1976-08-24 | Candaian Hurricane Equipment Ltd | Portable fan housing |
| WO1983004287A1 (en) * | 1982-05-28 | 1983-12-08 | Peabody Fans | Ventilation fan with noise-attenuating housing |
| KR20010017888A (en) * | 1999-08-16 | 2001-03-05 | 박영삼 | A both direction ventilated system |
| DE102004041696A1 (en) * | 2004-08-28 | 2006-03-02 | Wolter Gmbh & Co. Kg | Jet fan used in e.g. multistory carparks, underground parking areas, has electric motor stored in fan housing for driving axial blowers which are arranged with one behind the other with respect to airflow direction in fan housing |
| CN101749285A (en) * | 2010-01-15 | 2010-06-23 | 汪祥 | Fan with silencer |
| CN202732502U (en) * | 2012-08-29 | 2013-02-13 | 湖南腾邦重工设备有限公司 | Mining pneumatic draw-out type local fan |
| DE202013105734U1 (en) * | 2013-12-17 | 2014-02-04 | Korfmann Lufttechnik GmbH | Soundproofing for a fan |
| CN105782090A (en) * | 2016-04-26 | 2016-07-20 | 浙江理工大学 | Noise-lowering and vortex-reducing axial flow fan |
| CN106015052A (en) * | 2016-07-19 | 2016-10-12 | 山西巨龙风机有限公司 | Mining counter-rotating short-shaft main ventilator |
| CN206111630U (en) * | 2016-10-21 | 2017-04-19 | 山西巨龙风机有限公司 | Mining auxiliary ventilating fan of ultra -low noise |
-
2016
- 2016-10-21 CN CN201610918954.XA patent/CN106321474B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976393A (en) * | 1975-08-27 | 1976-08-24 | Candaian Hurricane Equipment Ltd | Portable fan housing |
| WO1983004287A1 (en) * | 1982-05-28 | 1983-12-08 | Peabody Fans | Ventilation fan with noise-attenuating housing |
| KR20010017888A (en) * | 1999-08-16 | 2001-03-05 | 박영삼 | A both direction ventilated system |
| DE102004041696A1 (en) * | 2004-08-28 | 2006-03-02 | Wolter Gmbh & Co. Kg | Jet fan used in e.g. multistory carparks, underground parking areas, has electric motor stored in fan housing for driving axial blowers which are arranged with one behind the other with respect to airflow direction in fan housing |
| CN101749285A (en) * | 2010-01-15 | 2010-06-23 | 汪祥 | Fan with silencer |
| CN202732502U (en) * | 2012-08-29 | 2013-02-13 | 湖南腾邦重工设备有限公司 | Mining pneumatic draw-out type local fan |
| DE202013105734U1 (en) * | 2013-12-17 | 2014-02-04 | Korfmann Lufttechnik GmbH | Soundproofing for a fan |
| CN105782090A (en) * | 2016-04-26 | 2016-07-20 | 浙江理工大学 | Noise-lowering and vortex-reducing axial flow fan |
| CN106015052A (en) * | 2016-07-19 | 2016-10-12 | 山西巨龙风机有限公司 | Mining counter-rotating short-shaft main ventilator |
| CN206111630U (en) * | 2016-10-21 | 2017-04-19 | 山西巨龙风机有限公司 | Mining auxiliary ventilating fan of ultra -low noise |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105131A (en) * | 2018-02-12 | 2018-06-01 | 山西巨龙风机有限公司 | A kind of low noise local ventilation machine host of multilayer isolation |
| CN108105131B (en) * | 2018-02-12 | 2024-05-10 | 山西巨龙风机有限公司 | Low-noise local ventilator host computer of multilayer isolation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106321474B (en) | 2018-10-09 |
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