CN208106840U - Booster silencer - Google Patents
Booster silencer Download PDFInfo
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- CN208106840U CN208106840U CN201820562016.5U CN201820562016U CN208106840U CN 208106840 U CN208106840 U CN 208106840U CN 201820562016 U CN201820562016 U CN 201820562016U CN 208106840 U CN208106840 U CN 208106840U
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Abstract
The utility model discloses a kind of booster silencers, including air inlet muffler part（5）, air exhausting soundproofing component（14）, silencer box（9）The integral structure of composition enters the wind muffler part（5）Pass through silencer box（9）With air exhausting soundproofing component（14）It is connected；Enter the wind muffler part（5）Including straight tube noise elimination cavity and the first contraction chamber connected to it（7）, air exhausting soundproofing component（14）Including the expansion cavity being successively linked in sequence（13）, straight tube noise elimination cavity, the second contraction chamber（15）And wind collecting unit（16）；First contraction chamber（7）, the second contraction chamber（15）, wind collecting unit（16）It is made of annular metal sheet and metal folded plate；Booster（11）It is placed on silencer box（9）Interior, there are certain gaps with left and right muffler body；Straight tube noise elimination cavity includes the outer cylinder of ring structure（4）, middle cylinder（3）And inner cylinder（2）, pass through connector between them（24）Connection.
Description
Technical field
The utility model relates to a kind of coal quo of local Fan for Mine or noise silencer of axial flow fan.
Background technique
Ventilation blower applied by coal mine local ventilation at present is mostly convection rotary type explosion-proof axial flow fan, such blower is at work
The noise of generation is very high, is generally existed according to field measurement under multiple mines in the case where blower has installed existing silencer
95 to 115 decibels are averagely up to away from the noise sound at one meter of blower, which is higher than country《Industrial enterprise's noise health
Standard》It is required that 10 to 30 decibels, noise superscale is very high.Currently used sound reduction method is：Part fan manufacturer is in wind
The inlet and outlet of machine are equipped with silencer, and there are also part of the manufacturer to add deadener, but the drop of such silencer in Blower Housing
The amount of making an uproar is at 10 decibels hereinafter, noise reduction effect is very poor.In addition, noise is not easy to decay since the working space in mine is narrow,
Noise caused by ventilation blower can cause serious noise pollution to working environment, the physiological health of noise hazard staff and
Mental health；And since the masking effect of fan noise makes the personnel to work in noise circumstance that can not carry out language friendship
Stream, cannot determine in time and cope with the variation occurred in surrounding working environment, and since the interference of noise can also make making an uproar
The distraction of people in acoustic environment, working efficiency reduce, and unsafe accident are easily generated in noise circumstance, because by local ventilation
The influence of machine noise and caused by human casualty accident it is commonplace；Therefore no matter in terms of the labour protection and in terms of keeping the safety in production
All it is badly in need of having a kind of can be reduced to the noise of booster to meet country《Industrial enterprise's noise sanitary standard》It is efficient
Silencing apparatus.
Utility model content
The technical problems to be solved in the utility model is：A kind of booster silencer is provided, it is interior in a limited space
Carry out noise reduction, the noise that booster issues at work is effectively reduced, keeps its noise up to standard, make wind loss 5% with
Under, it installs simple and convenient.
In order to solve the above technical problems, technical solution adopted in the utility model is：The booster silencer packet
Air inlet muffler part is included, air exhausting soundproofing component, the integral structure of silencer box composition, air inlet muffler part is by silencer box and arranges
Wind muffler part is connected；Entering the wind muffler part includes straight tube noise elimination cavity and the first contraction chamber connected to it, air exhausting soundproofing portion
Part includes the expansion cavity being successively linked in sequence, straight tube noise elimination cavity, the second contraction chamber and wind collecting unit；First contraction chamber, second receives
Contracting chamber, the cavity structure that expansion cavity is made of metal plate and metal perforated plate, wind collecting unit is by annular metal sheet and metal folded plate group
At；Silencer box is by preceding muffler body, rear muffler body, left muffler body, right muffler body, locking device and damping base composition；Left and right disappears
Sound body is connect by hinge with damping base, and is locked on top；Booster is placed in silencer box, with left and right muffler body
There are certain gaps；Straight tube noise elimination cavity includes the outer cylinder of ring structure, middle cylinder and inner cylinder, and passing through connector between them connects
It connects；The cavity structure that outer cylinder is made of metal plate and metal perforated plate, inner cylinder and middle cylinder are by double layer of metal orifice plate and both ends annular
The cavity structure of smooth head composition；Front and back muffler body is the identical structure of two structures, is metal perforated plate and metal plate composition
Cavity structure, lower part are connected by pedestal, and top is fixed by support rod；Perforative air duct, entrance hole are distributed with above；
It is fixed with annular band iron with the side being connected into air exhausting soundproofing component, left and right muffler body is the identical symmetrical junction of two structures
Structure is the L-type curve cavity structure of metal perforated plate and metal plate composition, and damping base is by metal plate, metal perforated plate, and absorb sound material
Material, damping material and four lifters with adjusted position height form.
Further, the preferred screw rod of lifter, spiral, worm gear, hydraulic pressure lifting device；Connector is connecting rod or connecting plate；Institute
The centrifugally glass-wool that filling is wrapped up by glass fabric inside the cavity structure stated.
Further, the metal folded plate of wind collecting unit is that annular metal sheet towards 90 ° of flanging or annular flange is vertically fixed on ring
On shape metal plate.
Further, annular band iron is that inside is fixed with wedge structure, and the flange into air exhausting soundproofing component is to lack side flange.
Further, annular band iron is welding circular flange structure, and the flange into air exhausting soundproofing component is identical round method
It is blue.
Further, wedge is that one end is narrow, and one end is wide, that narrow one end is equipped with location hole, and location hole contains conessi structure.
Further, into air exhausting soundproofing component and silencer box junction, booster and front and back muffler body junction, left and right
The rubber weather strip of soft connection is equipped at sound absorber junction, left and right sound absorber and front and back sound absorber.
Further, metal plate, annular metal sheet, metal folded plate two sides are all sprayed with damping layer.
Bring has the technical effect that after implementing above-mentioned technical proposal：1. the noise reduction of the local fan silencer is more traditional
The noise reduction of silencer improves two times or more, and average noise reduction is 25 to 40 decibels, and 2. make wind loss below 5%；3.
Noise reduction is realized in limited space；4. can be installed in the place of ground injustice, simply, conveniently.Working environment is improved, is protected
Safety in production is demonstrate,proved.
Detailed description of the invention
Fig. 1 is the stereochemical structure sectional view of the utility model；
Fig. 2 is half-sectional structure chart on the perspective view of the utility model；
Fig. 3 is the front and back muffler body structural schematic diagram of the utility model；
Fig. 4 is the right muffler body perspective view of the utility model；
Fig. 5 is the left view of the air inlet muffler part of the utility model；
Fig. 6 is A-A sectional schematic diagram of Fig. 1 of the utility model；
Fig. 7 is muffler body and scarce side flanged joint figure before and after the utility model；
Fig. 8 is muffler body and circular flange connection figure before and after the utility model；
Fig. 9 is that the utility model lacks side flange figure；
Figure 10 is muffler body abutted flange front elevation before and after the utility model；
Figure 11 is the utility model wedge mounting flange perspective view；
Figure 12 is the utility model circular flange figure；
1-ring light is foxy, 2-inner cylinders, 3-middle cylinders, 4-outer cylinders, 5-air inlet muffler parts, the 7-the first contraction chamber,
Muffler body before 8-, 9-silencer boxs, 10- locking device, 11-boosters, muffler body after 12-, 13-expansion cavities, 14-rows
Wind muffler part, the 15-the second contraction chamber, 16-wind collecting units, 17-lifters, the air duct 18-, 19- entrance hole, 20-support rods,
21-annular band irons, 22-damping bases, 23- metal perforated plate, 24- connector, 25- wedge, 26- lack side flange, 27- sealing
Item, 28- circular flange, 29-location holes, 30-set screws, 31-right muffler bodies.
Specific embodiment
The principles of the present invention and feature are described with reference to the accompanying drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
According to Fig. 1 to Figure 12 it is found that the booster silencer includes entering the wind muffler part 5, air exhausting soundproofing component 14,
The integral structure that silencer box 9 forms, air inlet muffler part 5 are connected by silencer box 9 with air exhausting soundproofing component 14；Air inlet disappears
Part part 5 includes straight tube noise elimination cavity and the first contraction chamber 7 connected to it, and air exhausting soundproofing component 14 includes successively being linked in sequence
Expansion cavity 13, straight tube noise elimination cavity, the second contraction chamber 15 and wind collecting unit 16；First contraction chamber 7, the second contraction chamber 15, expansion cavity
13 cavity structures being made of metal plate and metal perforated plate, the cavity that expansion cavity 13 is made of metal plate and metal perforated plate,
The centrifugally glass-wool that inside filling is wrapped up by glass fabric；Wind collecting unit 16 is made of annular metal sheet and metal folded plate；It eliminates the noise
Case 9 is made of preceding muffler body 8, rear muffler body 12, left muffler body, right muffler body, locking device 10 and damping base 22；Left and right disappears
Sound body is connect by hinge with damping base 22, and is locked on top；Booster 11 is placed in silencer box 9, is disappeared with left and right
Sound body is there are certain gap, and the vibration for having completely cut off booster 11 is directly transferred on the muffler body of left and right, and due to having
Air layer enhances noise elimination effect；Straight tube noise elimination cavity includes the outer cylinder 4 of ring structure, middle cylinder 3 and inner cylinder 2, is passed through between them
Connector 24 connects；The cavity structure that outer cylinder 4 is made of metal plate and metal perforated plate, inner cylinder 2 and middle cylinder 3 are by double layer of metal hole
The cavity structure of 1 composition of plate and both ends ring light slippery fellow, the centrifugally glass-wool that inside filling is wrapped up by glass fabric are such
While structure can make noise reduction abundant, wind loss is minimized.
Front and back muffler body is the identical structure of two structures, since coal mine roadway space is limited, curve cavity of the invention
Under the premise of meeting noise reduction, space is compressed, ensure that the effective use in space, is metal perforated plate and metal board group
At cavity structure, lower part by pedestal be connected, top is fixed by support rod；Perforative air duct 18 is distributed with above,
Entrance hole 19；When air duct ensure that booster 11 with air quantity is transmitted into air exhausting soundproofing component, wind loss is minimized；
It is fixed with annular band iron 21 with the side being connected into air exhausting soundproofing component, left and right muffler body is the identical symmetrical junction of two structures
Structure, is the L-type curve cavity structure of metal perforated plate and metal plate composition, and damping base 22 is by metal plate, metal perforated plate, sound absorption
Material, damping material and four lifters 17 with adjusted position height form.Lifter 17 is mainly used to adjust because of ground
Deviation caused by injustice, facilitates installation calibrating.
Preferably, the preferred screw rod of lifter, spiral, worm gear, hydraulic pressure lifting device；Connector 24 is connecting rod or connection
Plate；The centrifugally glass-wool that filling is wrapped up by glass fabric inside the cavity structure.
Preferably, the metal folded plate of wind collecting unit 16 is that annular metal sheet is vertically fixed towards 90 ° of flanging or annular flange
On annular metal sheet.In this way while guaranteeing balanced ventilation, it is also convenient for Canvas Ventilator on coal mine and is fixed on wind collecting unit 9.
Preferably, annular band iron 21 is that inside is fixed with 25 structure of wedge, the flange into air exhausting soundproofing component is to lack side
Flange 26.
Preferably, annular band iron 21 is welding circular flange structure, the flange into air exhausting soundproofing component is identical circle
Shape flange.
Preferably, wedge 25 is that one end is narrow, one end is wide, that narrow one end is equipped with location hole 29, and location hole 29 contains cone
Silk structure.In side flange precession annular band iron to be lacked, wide one is compressed, narrow one section by screw set screw 30 into
Row compresses.
Preferably, into air exhausting soundproofing component and 9 junction of silencer box, booster 11 is connect with front and back muffler body
The rubber weather strip 27 of soft connection is equipped at place, left and right sound absorber junction, left and right sound absorber and front and back sound absorber.Keep away
Exempt from leakage voice phenomenon, and reduces the conduction of vibration.
Preferably, metal plate, annular metal sheet, metal folded plate two sides are all sprayed with damping layer.Silencer can be enhanced in this way
Sound absorption, sound insulation, effectiveness in vibration suppression.
The working principle of the booster silencer of the utility model is：Using sound absorption, insulate against sound, damping technology principle,
The merging of booster 11 is had into sound absorption, insulates against sound, in the silencer box 9 of vibration-damping function, air inlet is installed at the both ends of silencer box 9
Muffler part 5 and air exhausting soundproofing component 14, pressure caused by booster 11 is run make air intake from air inlet muffler part 5
Straight tube is eliminated the noise to be entered into chamber 6, by the first contraction chamber 7, silencer box 9, expansion cavity 13, straight tube noise elimination cavity 6,15 He of the second contraction chamber
Wind collecting unit 16 forms discharge air flow discharge, distinguished and admirable send fresh to workplace；Caused by the operation of booster 11 simultaneously
Noise is also by the noise reduction knot in above-mentioned straight tube noise elimination cavity 6, the first contraction chamber 7, silencer box 9, expansion cavity 13, the second contraction chamber 15
Structure is absorbed, to make 6 import noise sound of straight tube noise elimination cavity, the outlet noise sound of wind collecting unit 16 is obtained significantly
It reduces, in the case where wind loss is met the requirements, so that sound is converted into thermal energy consumption and fall, what 11 body of booster generated
Noise and vibration is reduced by the noise elimination structure of silencer box with vibration-proof structure, realizes the effect of noise, vibration reduce.
The installation process of the silencer of the utility model is：Booster 11 is placed in silencer box 9, left and right is closed and disappears
Sound body is locked above, then 5 flange one end of air inlet muffler part is connected with silencer box 9 with set screw, air exhausting soundproofing
14 flange one end of component is connected with 9 other end of silencer box with set screw, by wind collecting unit 16 and canvas after adjusting lifter 17
Channel fixes, and silencer is just in working condition, as long as silencer just works after opening booster 11.
Claims (8)
1. a kind of booster silencer, which is characterized in that including entering the wind muffler part（5）, air exhausting soundproofing component（14）, disappear
Sound case（9）The integral structure of composition enters the wind muffler part（5）Pass through silencer box（9）With air exhausting soundproofing component（14）It is connected；
Enter the wind muffler part（5）Including straight tube noise elimination cavity and the first contraction chamber connected to it（7）, air exhausting soundproofing component（14）Including according to
The expansion cavity of secondary sequential connection（13）, straight tube noise elimination cavity, the second contraction chamber（15）And wind collecting unit（16）；First contraction chamber（7）,
Second contraction chamber（15）, expansion cavity（13）The cavity structure being made of metal plate and metal perforated plate, wind collecting unit（16）By annular
Metal plate and metal folded plate composition；Silencer box（9）By preceding muffler body（8）, rear muffler body（12）, left muffler body, right muffler body, lock
Tight device（10）And damping base（22）Composition；Left and right muffler body passes through hinge and damping base（22）Connection, and locked on top
Tightly；Booster（11）It is placed on silencer box（9）Interior, there are certain gaps with left and right muffler body；Straight tube noise elimination cavity includes ring
The outer cylinder of shape structure（4）, middle cylinder（3）And inner cylinder（2）, pass through connector between them（24）Connection；Outer cylinder（4）It is by metal plate
With the cavity structure of metal perforated plate composition, inner cylinder（2）And middle cylinder（3）It is foxy by double layer of metal orifice plate and both ends ring light（1）Group
At cavity structure；Front and back muffler body is the identical structure of two structures, is the cavity structure of metal perforated plate and metal plate composition,
Lower part is connected by pedestal, and top is fixed by support rod；Perforative air duct is distributed with above（18）, entrance hole（19）；
Annular band iron is fixed with the side being connected into air exhausting soundproofing component（21）, left and right muffler body is that two structures are identical symmetrical
Structure is the L-type curve cavity structure of metal perforated plate and metal plate composition, damping base（22）Be by metal plate, metal perforated plate,
Sound-absorbing material, damping material and four lifters with adjusted position height（17）Composition.
2. booster silencer according to claim 1, which is characterized in that the preferred screw rod of the lifter, spiral shell
Rotation, worm gear, hydraulic pressure lifting device；Connector（24）For connecting rod or connecting plate；Filling is by glass fibers inside the cavity structure
The centrifugally glass-wool of Wei Bu package.
3. booster silencer according to claim 1 or 2, which is characterized in that the wind collecting unit（16）Gold
Belonging to folded plate is that annular metal sheet is vertically fixed on annular metal sheet towards 90 ° of flanging or annular flange.
4. booster silencer according to claim 1 or 2, which is characterized in that the annular band iron（21）For
Inside is fixed with wedge（25）Structure, the flange into air exhausting soundproofing component are to lack side flange（26）.
5. booster silencer according to claim 1 or 2, which is characterized in that the annular band iron（21）For
Circular flange structure is welded, the flange into air exhausting soundproofing component is identical circular flange.
6. booster silencer according to claim 4, which is characterized in that the wedge（25）It is narrow for one end,
One end is wide, that narrow one end is equipped with location hole（29）, location hole（29）Contain conessi structure.
7. booster silencer according to claim 1 or 2, which is characterized in that described into air exhausting soundproofing component
With silencer box（9）Junction, booster（11）With front and back muffler body junction, left and right sound absorber junction, left and right sound absorption
The rubber weather strip of soft connection is equipped at body and front and back sound absorber（27）.
8. booster silencer according to claim 1 or 2, which is characterized in that the metal plate, endless metal
Plate, metal folded plate two sides are all sprayed with damping layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820562016.5U CN208106840U (en) | 2018-04-19 | 2018-04-19 | Booster silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820562016.5U CN208106840U (en) | 2018-04-19 | 2018-04-19 | Booster silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208106840U true CN208106840U (en) | 2018-11-16 |
Family
ID=64119060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820562016.5U Active CN208106840U (en) | 2018-04-19 | 2018-04-19 | Booster silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208106840U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN112683539A (en) * | 2020-12-15 | 2021-04-20 | 中航工程集成设备有限公司 | Exhaust metal runner structure for aircraft engine test |
-
2018
- 2018-04-19 CN CN201820562016.5U patent/CN208106840U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN109505808B (en) * | 2018-12-25 | 2024-02-20 | 广东美的白色家电技术创新中心有限公司 | Fan silencer and fan silencing system |
| CN112683539A (en) * | 2020-12-15 | 2021-04-20 | 中航工程集成设备有限公司 | Exhaust metal runner structure for aircraft engine test |
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