CN106321474B - A kind of ultra-low noise quo of local Fan for Mine - Google Patents

A kind of ultra-low noise quo of local Fan for Mine Download PDF

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Publication number
CN106321474B
CN106321474B CN201610918954.XA CN201610918954A CN106321474B CN 106321474 B CN106321474 B CN 106321474B CN 201610918954 A CN201610918954 A CN 201610918954A CN 106321474 B CN106321474 B CN 106321474B
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China
Prior art keywords
inner casing
noise
air inlet
flange
noise reduction
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CN201610918954.XA
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CN106321474A (en
Inventor
张和义
张晋凤
吕存栓
谢海军
李春萍
李世龙
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Shanxi Julong Fan & Blowers Co Ltd
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Shanxi Julong Fan & Blowers Co Ltd
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Priority to CN201610918954.XA priority Critical patent/CN106321474B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/02Selection of particular materials
    • F04D29/023Selection of particular materials especially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/522Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663Sound attenuation
    • F04D29/664Sound attenuation by means of sound absorbing material

Abstract

A kind of ultra-low noise quo of local Fan for Mine, including exit silencer, main body, suction muffler, main body include motor, impeller, inner casing, shell;Suction muffler includes current collector, noise reduction wall, silencer cylinder, side air admission mouth and air inlet velar plate, advantageous effect:It is connected and fixed by elastic material between inner casing and shell, considerably reduces the radiated noise of host housing;Suction muffler is changed by area of section, is expanded or is shunk suddenly by means of pipeline section, achievees the purpose that once to eliminate the noise;When sound wave enters noise elimination wall, a part of acoustic energy rubs in the gap of porous material and is converted to thermal energy consumption and dissipates, to reach secondary noise elimination purpose;Noise reduction wall can very easily extract cleaning or replacement out after being blocked by dust, keep erasure effect, repair time short;Acoustic wave segment at sound source is entered the wind orifice plate rear portion to side and is absorbed by deadener, to reach purpose of eliminating the noise three times.

Description

A kind of ultra-low noise quo of local Fan for Mine
Technical field
The present invention relates to a kind of mine ventilation equipments, and in particular to a kind of ultra-low noise quo of local Fan for Mine.
Background technology
Mine ventilation system is an important component of pit mining, is the basic guarantee of mine safety production, mine With to revolving booster(Hereinafter referred to as local fan)Effect be in Mine Production, continually by fresh air It is transported to working face in the pit, staff breathes and dilute and exclude the various toxic, pernicious gases in underground and mine dust, creates good Working environment, ensure the health and safety of underground operators.
The local fan that domestic production at present uses mainly has the series such as FBD, FB, FBDC, FBY, the motor of these wind turbines It is all made of two level explosion separation motor, motor speed is high, and aerodynamic noise is big;Most types are equipped with inlet and outlet silencer, but effect of eliminating the noise Fruit is general, cannot meet user's requirement.
Invention content
The purpose of the present invention is exactly to provide a kind of ultra-low noise mining partial ventilation to further decrease the noise of wind turbine Machine.
To achieve the above object, the technical solution adopted by the present invention is:
A kind of ultra-low noise quo of local Fan for Mine, including exit silencer, main body, suction muffler, feature exist In:Main body includes motor, impeller, inner casing, shell, and the inner casing includes preceding inner casing, rear inner casing, and the shell includes upper Shell, lower housing have impeller in preceding inner casing, have motor in rear inner casing, there is flange, preceding inner casing and rear inner casing on motor It is connect respectively with motor by flange, there is anti-rotation sheet on inner casing, be fixed on by several rubber bars between inner casing and shell Together;There are two rubber slab on lower housing, rubber slab is contacted with anti-rotation sheet prevents inner casing from rotating;In upper shell, lower housing There are rubber pad, rubber pad to limit inner casing and be axially moved on the flange inner face at both ends;Upper shell, lower housing are bolted, knot Close the sealing of face paste gasket.
According to above-described ultra-low noise quo of local Fan for Mine, it is characterised in that:The suction muffler includes Current collector, noise reduction wall, silencer cylinder, side air admission mouth and air inlet velar plate, the current collector is by first flange, fair water cone branch Support, fair water cone and current collector cylinder are welded;The silencer cylinder by second flange, connecting plate and third flange welding and At;Current collector and silencer cylinder are to connect by welding, and equipped with the noise reduction wall that can be extracted out in silencer cylinder, noise reduction is within the walls It is that glass wool cloth wraps up glass silk flosssilk wadding to have quieter material, the quieter material eliminated the noise within the walls, and noise elimination wall is fixed by perforated plate Welding fabrication;The side air admission mouth is supported into air duct, side air inlet orifice plate, guide shell and side air inlet by the 4th flange, side It is welded;The side air inlet orifice plate is punch forming part, and middle part is plane, and periphery is spherical surface, is had on the air inlet orifice plate of side Several apertures;Side, which is entered the wind orifice plate and entered the wind in the cavity between velar plate, is filled with quieter material, and deadener is glass fiber Cloth wraps up glass fiber cotton;The side air admission mouth is connected on silencer cylinder by second flange;The noise elimination wall Be by third flanged joint on silencer cylinder, remove noise reduction wall it is i.e. capable of washing or replace quieter material.
According to above-described ultra-low noise quo of local Fan for Mine, it is characterised in that:The noise reduction of the noise reduction within the walls Material is that foaming deadener is fixed by steel plate lead frame;In cavity between the side air inlet orifice plate and air inlet velar plate The deadener of filling is foaming deadener.In addition, above-described quieter material can also be other noise reductions such as silencing cotton Material.
According to above-described ultra-low noise quo of local Fan for Mine, it is characterised in that:The air inlet velar plate is to use Screw is fixed on the 4th flange, and the quieter material filled in cavity can be cleaned or replace by removing air inlet velar plate.
Compared with the prior art, the invention has the advantages that:Outside noise main source and host when existing blower fan work The radiated noise and import noise of shell, are connected and fixed by elastic material between inner casing and shell of the present invention, are considerably reduced The radiated noise of host housing;Suction muffler is changed by area of section, is expanded or is shunk suddenly by means of pipeline section, makes Sound wave along certain frequencies of pipe transmmision reflects back at mutation to Sounnd source direction, to achieve the purpose that once to eliminate the noise; There is the noise reduction wall that can be extracted out in import silencer, when sound wave enters noise elimination wall, a part of acoustic energy is in the gap of porous material It rubs and is converted to thermal energy consumption and dissipates, to reach secondary noise elimination purpose;Noise reduction wall can very easily be taken out after being blocked by dust Go out cleaning or replacement, keeps erasure effect, repair time short;Acoustic wave segment at sound source reaches the side air inlet on side air admission mouth After orifice plate, a part is reflected back toward Sounnd source direction, and another part is absorbed by deadener, to reach purpose of eliminating the noise three times.
Description of the drawings
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 schematic diagram of ultra-low noise quo of local Fan for Mine main body of embodiment of the present invention machine 2;
Fig. 3 is the structural schematic diagram of Fig. 2 motors 13, impeller 11, inner casing 5;
Fig. 4 is the structural schematic diagram of suction muffler of the embodiment of the present invention 3;
Fig. 5 is the structural schematic diagram that each components of Fig. 4 link together;
Icon explanation:1. exit silencer;2. main body;3. suction muffler;4. shell;5. inner casing;On 6. Shell;7. lower housing;8. rubber slab;9. rubber bar;10. rubber pad;11. impeller;Inner casing before 12.;13. motor; Inner casing after 14.;15. anti-rotation sheet.31. current collector;32. noise reduction wall;33. silencer;34. side air admission mouth;35. Enter the wind velar plate;36. first flange;37. fair water cone supports;38. fair water cone;39. current collector cylinder;40. connecting plate;41. Third flange;43. second flange;44. the 4th flange;45. side is into air duct;46. cavity;47. orifice plate is entered the wind in side;48. Guide shell;49. side air inlet support.
Specific implementation mode
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 implementation of the present invention The structural schematic diagram of example ultra-low noise quo of local Fan for Mine main body machine 2;Fig. 3 is the structure of Fig. 2 motors 13, impeller 11, inner casing 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 Sign is:Main body 2 includes motor 13, impeller 11, inner casing 5, shell 4, and the inner casing 5 includes preceding inner casing 12, rear inner casing 14, the shell 4 includes upper shell 6, lower housing 7, has impeller 11 in preceding inner casing 12, there is motor 13 in rear inner casing 14, electricity There is flange, preceding inner casing 12 and rear inner casing 14 to be connect respectively with motor 13 by flange on machine 13, preceding inner casing 12 with it is rear in Flanged joint is used between casing 14;There is anti-rotation sheet 15 on inner casing 14, it is solid by several rubber bars 9 between inner casing 5 and shell 4 It is scheduled on together;There are two rubber slab 8 on lower housing 7, rubber slab 8 is contacted with anti-rotation sheet 15 prevents inner casing 14 from rotating;Upper Shell 6,7 both ends of lower housing flange inner face on have a rubber pad 10, rubber pad 10 limits inner casing 5 and is axially moved;Upper shell 6, under Shell 7 is bolted, and is sealed in conjunction with face paste PE gaskets;Fig. 4 is the structural representation of suction muffler of the embodiment of the present invention 3 Figure;Fig. 5 is the structural schematic diagram that each components of Fig. 4 link together;The suction muffler 3 includes current collector 31, noise reduction wall 32, silencer cylinder 33, side air admission mouth 34 and air inlet velar plate 35, the current collector 31 is by first flange 36, fair water cone branch Support 37, fair water cone 38 and current collector cylinder 39 are welded;The silencer cylinder 33 is by second flange 43, connecting plate 40 and third Flange 41 is welded;Current collector 31 and silencer cylinder 33 are to connect by welding, and being equipped in silencer cylinder 33 can take out The noise reduction wall 32 gone out has quieter material in noise reduction wall 32, and the quieter material in the noise elimination wall 32 is that glass wool cloth wraps up glass Glass silk flosssilk wadding, noise elimination wall 32 fix welding fabrication by perforated plate;The side air admission mouth 34 is by the 4th flange 44, side into air duct 45, side air inlet orifice plate 47, guide shell 48 and side air inlet support 49 are welded;The side air inlet orifice plate 47 is punch forming Part, middle part are plane, and periphery is spherical surface, has several apertures on the air inlet orifice plate 47 of side;Enter the wind orifice plate 47 and air inlet lid in side Quieter material is filled in cavity 46 between plate 35, deadener is that glass wool cloth wraps up glass silk flosssilk wadding;It is described it is lateral into Air port 34 is connected on silencer cylinder 33 by second flange 43;The noise elimination wall 32 is connected by third flange 41 On silencer cylinder 33, remove noise reduction wall 32 it is i.e. capable of washing or replace quieter material.
According to above-described ultra-low noise quo of local Fan for Mine, it is characterised in that:Disappearing in the noise reduction wall 32 Sound material is that foaming deadener is fixed by steel plate lead frame;Between the side air inlet orifice plate 47 and air inlet velar plate 35 The deadener filled in cavity 46 is foaming deadener.In addition, above-described quieter material can also be silencing cotton etc. Other quieter materials.
According to above-described ultra-low noise quo of local Fan for Mine, it is characterised in that:The air inlet velar plate 35 is It is screwed on the 4th flange 44, removing air inlet velar plate 35 can noise reduction capable of washing or replacing filling in cavity 46 Material.
When blower fan work, the noise major part that impeller generates is propagated, partial noise because of the blocking of inner casing 5 along air duct Acoustic bridge effect will not be formed since inside and outside casing is not rigidly connected to external radiation by inner casing 5, the noise radiated Consumption is further reflected by outer cage, therefore, appearing the noise of outer cage can significantly reduce, and considerably reduce fan noise.
Present invention pipeline section area at fair water cone 38, current collector cylinder 39, guide shell 48 becomes smaller, other position pipelines are cut Face area is big, expands or shrinks suddenly by means of pipeline section, make the sound waves of certain frequencies along pipe transmmision at mutation to Sounnd source direction reflects back, to achieve the purpose that once to eliminate the noise;There is the noise reduction wall 32 that can be extracted out in import silencer 3, works as sound When wave enters noise elimination wall, a part of acoustic energy rubs in the gap of porous material and is converted to thermal energy consumption and dissipates, to reach two Secondary noise elimination purpose;Noise reduction wall 32 can very easily extract cleaning or replacement out after being blocked by dust, keep erasure effect, when maintenance Between it is short;After acoustic wave segment at sound source reaches the side air inlet 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, to reach purpose of eliminating the noise three times.
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 single The wind turbine of grade main body or the above quantity main body of two-stage.

Claims (4)

1. 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 motor, impeller, inner casing, shell, and the inner casing includes preceding inner casing, rear inner casing, and the shell includes upper casing Body, lower housing have impeller in preceding inner casing, there is motor in rear inner casing, there is flange, preceding inner casing and rear inner casing point on motor It is not connect with motor by flange, there is anti-rotation sheet on inner casing, one is fixed on by several rubber bars between inner casing and shell It rises;There are two rubber slab on lower housing, rubber slab is contacted with anti-rotation sheet prevents inner casing from rotating;In upper shell, lower housing two There are rubber pad, rubber pad to limit inner casing and be axially moved on the flange inner face at end;Upper shell, lower housing are bolted, in conjunction with Face paste gasket seals.
2. ultra-low noise quo of local Fan for Mine according to claim 1, it is characterised in that:The suction muffler packet Current collector, noise reduction wall, silencer cylinder, side air admission mouth and air inlet velar plate are included, the current collector is by first flange, fair water cone Support, fair water cone and current collector cylinder are welded;The silencer cylinder by second flange, connecting plate and third flange welding and At;Current collector and silencer cylinder are to connect by welding, and equipped with the noise reduction wall that can be extracted out in silencer cylinder, noise reduction is within the walls It is that glass wool cloth wraps up glass silk flosssilk wadding to have quieter material, the quieter material of the noise reduction within the walls, and noise reduction wall is fixed by perforated plate Welding fabrication;The side air admission mouth is supported into air duct, side air inlet orifice plate, guide shell and side air inlet by the 4th flange, side It is welded;The side air inlet orifice plate is punch forming part, and middle part is plane, and periphery is spherical surface, is had on the air inlet orifice plate of side Several apertures;Side, which is entered the wind orifice plate and entered the wind in the cavity between velar plate, is filled with quieter material, and quieter material is glass fiber Cloth wraps up glass fiber cotton;The side air admission mouth is connected on silencer cylinder by second flange;The noise reduction wall Be by third flanged joint on silencer cylinder, remove noise reduction wall it is i.e. capable of washing or replace quieter material.
3. ultra-low noise quo of local Fan for Mine according to claim 2, it is characterised in that:The noise reduction disappearing within the walls Sound material is that foaming quieter material is fixed by steel plate lead frame;Cavity between the side air inlet orifice plate and air inlet velar plate The quieter material of interior filling is foaming quieter material.
4. ultra-low noise quo of local Fan for Mine according to claim 2 or 3, it is characterised in that:The air inlet lid Plate is screwed on the 4th flange, and the noise reduction material filled in cavity can be cleaned or replace by removing air inlet velar plate Material.
CN201610918954.XA 2016-10-21 2016-10-21 A kind of ultra-low noise quo of local Fan for Mine Active CN106321474B (en)

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CN201610918954.XA CN106321474B (en) 2016-10-21 2016-10-21 A kind of ultra-low noise quo of local Fan for Mine

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CN106321474B true CN106321474B (en) 2018-10-09

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

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