CN207187950U - A kind of special muffler of micronizer - Google Patents
A kind of special muffler of micronizer Download PDFInfo
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- CN207187950U CN207187950U CN201721064420.1U CN201721064420U CN207187950U CN 207187950 U CN207187950 U CN 207187950U CN 201721064420 U CN201721064420 U CN 201721064420U CN 207187950 U CN207187950 U CN 207187950U
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- muffler
- noise reduction
- muffling
- special
- straight way
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Abstract
It the utility model is related to a kind of special muffler of micronizer, including muffler shell, one end of muffler shell is provided with muffler air inlet, the other end of muffler shell is provided with muffler air outlet, it is connected with each other between muffler air inlet and muffler air outlet by noise reduction ventilating duct, noise reduction ventilating duct includes muffling curve and noise reduction straight way, and smoothly transit connection between muffling curve and noise reduction straight way；Sound gobo is provided with along the airflow direction of noise reduction ventilating duct, and the inwall of muffler shell and the both side surface of sound gobo have been covered each by porous fibre noise reduction layer, and the surface of each porous fibre noise reduction layer and air flow contacts has been covered each by muffling hole plate.Muffling curve can set one, one can also respectively be set at the both ends of noise reduction straight way, two muffling curves can be located at the same side or both sides of noise reduction straight way.The front end of sound gobo is provided with wedge-shape diversion head.The excellent noise reduction effect of the special muffler of the micronizer, manufacturing cost are low.
Description
Technical field
A kind of muffler is the utility model is related to, more particularly to a kind of special muffler of micronizer, belongs to antinoise
Equipment technical field.
Background technology
Traditional micronizer air inlet is fitted without special muffler, because micronizer rotating speed is high, crushes
Room produces high frequency noise, and air inlet does not set muffler or is connected to pulverizer air inlet using general muffler, its erasure effect
Difference.The high frequency noise in pulverizer is set to be transmitted in workshop, the high noise in workshop simultaneously contains shriek, is degrading the work in workshop
Make environment.
Utility model content
The purpose of this utility model is, overcomes problems of the prior art, there is provided a kind of micronizer is special
Muffler, excellent noise reduction effect, manufacturing cost are low.
To solve above technical problem, a kind of special muffler of micronizer of the present utility model, including muffler shell
Body, one end of the muffler shell are provided with muffler air inlet, and the other end of the muffler shell is provided with muffler air-out
Mouthful, it is connected with each other between the muffler air inlet and muffler air outlet by noise reduction ventilating duct, the noise reduction ventilating duct bag
Muffling curve and noise reduction straight way are included, smoothly transit connection between the muffling curve and the noise reduction straight way；Lead to along the noise reduction
The airflow direction in air channel is provided with sound gobo, and the both side surface of the inwall of the muffler shell and the sound gobo is covered respectively
It is stamped porous fibre noise reduction layer, the surface of each porous fibre noise reduction layer and air flow contacts has been covered each by muffling hole plate.
Relative to prior art, the utility model achieves following beneficial effect：Go out in muffler air inlet with muffler
Muffling curve is set between air port, it is possible to reduce the reflection of sound wave and diffraction, is improved erasure effect, muffler shell inwall and is disappeared
The porous fibre noise reduction layer of sound baffle surface has numerous holes, and under the effect such as frictional dissipation, its acoustic energy is converted to heat
Can be so that sound effectively be suppressed；Using the quantity in sound gobo increase air channel, air channel width is reduced, one can be entered
Step improves erasure effect.
As improvement of the present utility model, the sound gobo is provided with together and prolonged along the axis of the noise reduction ventilating duct
Stretch.Sound gobo is arranged on the axis of noise reduction ventilating duct is divided into the equal two halves of width by noise reduction ventilating duct, is ensureing to disappear
Reduce gas-flow resistance on the basis of audio fruit.
As further improvement of the utility model, the noise reduction ventilating duct includes one section of muffling curve and one section of noise reduction is straight
It is in 90 ° between the axis of road, the axis of the muffler air inlet and the muffler air outlet.Only set one section of muffling curve
Muffler is applied to the environment not high to noise requirements.
As further improvement of the utility model, the noise reduction ventilating duct includes one section of noise reduction straight way, the noise reduction straight way
Both ends be connected to muffling curve, the axis of the axis of the muffler air inlet and the muffler air outlet is mutually flat
OK.The muffler of two sections of muffling curves is set to be applied to the environment higher to noise requirements.
As further improvement of the utility model, two muffling curves are located at the same side of the noise reduction straight way.Disappear
Sound ventilating duct is overall U-shaped, suitable for the bigger situation of the same side installing space of micronizer air inlet.
As further improvement of the utility model, two muffling curves are located at the both sides of the noise reduction straight way respectively.
Noise reduction ventilating duct is integrally S-shaped, suitable for the smaller situation of the same side installing space of micronizer air inlet.
As further improvement of the utility model, the front end of the sound gobo towards the muffler air inlet is provided with
Beloid wedge-shape diversion head.Guide effect of the wedge-shape diversion head to air-flow can reduce the resistance to air-flow, while also subtract
Small reflective surface area outwards.
As further improvement of the utility model, the rear end of the sound gobo towards the muffler air outlet is also set
There is wedge-shape diversion head.Set wedge-shape diversion head to reduce the vortex in exit at muffler air outlet, make gas-flow resistance smaller.
As further improvement of the utility model, a diameter of 5mm circular hole is uniformly distributed with the muffling hole plate, respectively
Circular hole is in equilateral triangle arrangement, and the centre-to-centre spacing between adjacent circular holes is 8mm.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description, accompanying drawing only provides ginseng
Examine and used with explanation, be not used to limit the utility model.
Fig. 1 is the sectional view of the special muffler embodiment one of the utility model micronizer.
Fig. 2 is along A-A sectional view in Fig. 1.
Fig. 3 is the sectional view of the special muffler embodiment two of the utility model micronizer.
Fig. 4 is the sectional view of the special muffler embodiment three of the utility model micronizer.
Fig. 5 is the structural representation of muffling hole plate in the special muffler of the utility model micronizer.
In figure：1. muffler shell；2. muffler air inlet；3. muffler air outlet；4. muffling curve；5. noise reduction is straight
Road；6. sound gobo；6a. wedge-shape diversion heads；7. porous fibre noise reduction layer；8. muffling hole plate；8a. circular holes.
Embodiment
As shown in Figure 1 and Figure 2, the special muffler of micronizer of the present utility model includes muffler shell 1, muffler
One end of housing 1 is provided with muffler air inlet 2, and the other end of muffler shell 1 is provided with muffler air outlet 3, muffler air intake
It is connected with each other between mouth 2 and muffler air outlet 3 by noise reduction ventilating duct, noise reduction ventilating duct includes muffling curve 4 and noise reduction is straight
Road 5, smoothly transit connection between muffling curve 4 and noise reduction straight way 5；Sound gobo 6 is provided with along the airflow direction of noise reduction ventilating duct,
The inwall of muffler shell 1 and the both side surface of sound gobo 6 have been covered each by porous fibre noise reduction layer 7, and each porous fibre disappears
Sound-absorbing layer 7 and the surface of air flow contacts have been covered each by muffling hole plate 8.Set between muffler air inlet 2 and muffler air outlet 3
Put muffling curve 4, it is possible to reduce the reflection of sound wave and diffraction, improve erasure effect, the inwall of muffler shell 1 and sound gobo 6
The porous fibre noise reduction layer 7 on surface has numerous holes, frictional dissipation etc. effect under, its acoustic energy be converted to heat energy so as to
Sound is effectively suppressed；Increase the quantity in air channel using sound gobo 6, reduce air channel width, can further carry
High erasure effect.
Sound gobo 6 can be provided with together and extend along the axis of noise reduction ventilating duct.Sound gobo 6 is arranged on noise reduction ventilation
Noise reduction ventilating duct is divided into the equal two halves of width on the axis in road, reduces air-flow resistance on the basis of erasure effect is ensured
Power.
Noise reduction ventilating duct can include one section of noise reduction straight way 5, and the both ends of the noise reduction straight way 5 are connected to muffling curve 4,
The axis of the axis of muffler air inlet 2 and muffler air outlet 3 is parallel to each other.The muffler of two sections of muffling curves 4 is set to fit
For the environment higher to noise requirements.
As shown in figure 1, two muffling curves 4 can be located at the same side of noise reduction straight way 5.Noise reduction ventilating duct is overall U-shaped, fits
The situation bigger for the same side installing space of micronizer air inlet.
Sound gobo 6 is provided with beloid wedge-shape diversion head 6a towards the front end of muffler air inlet 2.Wedge-shape diversion head
Guide effects of the 6a to air-flow can reduce the resistance to air-flow, while also reduce outside reflective surface area.
As shown in figure 3, two muffling curves 4 can be located at the both sides of noise reduction straight way 5 respectively.Noise reduction ventilating duct is integrally S-shaped,
Suitable for the smaller situation of the same side installing space of micronizer air inlet.
The rear end of sound gobo 6 towards muffler air outlet 3 also is provided with wedge-shape diversion head 6a.Set at muffler air outlet 3
The vortex in exit can be reduced by putting wedge-shape diversion head 6a, make gas-flow resistance smaller.
As shown in figure 4, for the environment not high to noise requirements, noise reduction ventilating duct includes one section of muffling curve 4 and one section
Noise reduction straight way 5, it is in 90 ° between the axis of muffler air inlet 2 and the axis of muffler air outlet 3.
As shown in figure 5, circular hole 8a, each circular hole 8a that a diameter of 5mm is uniformly distributed with muffling hole plate 8 arrange in equilateral triangle
Arrange, the centre-to-centre spacing between adjacent circular holes 8a is 8mm.
It the foregoing is only the preferable possible embodiments of the utility model, non-therefore limitation patent of the present utility model
Protection domain.In addition to the implementation, the utility model can also have other embodiment, all to use equivalent substitution or equivalent change
The technical scheme to be formed is changed, is all fallen within the protection domain of the requires of the utility model.Technology of the utility model without description is special
Sign can be realized by or using prior art, will not be repeated here.
Claims (9)
1. a kind of special muffler of micronizer, including muffler shell, one end of the muffler shell is provided with muffler
Air inlet, the other end of the muffler shell are provided with muffler air outlet, the muffler air inlet and muffler air outlet
Between be connected with each other by noise reduction ventilating duct, it is characterised in that：The noise reduction ventilating duct includes muffling curve and noise reduction straight way, institute
State the connection that smoothly transitted between muffling curve and the noise reduction straight way；Along the noise reduction ventilating duct airflow direction be provided with noise reduction every
The both side surface of plate, the inwall of the muffler shell and the sound gobo has been covered each by porous fibre noise reduction layer, each institute
The surface for stating porous fibre noise reduction layer and air flow contacts has been covered each by muffling hole plate.
2. the special muffler of micronizer according to claim 1, it is characterised in that：The sound gobo is provided with together
And extend along the axis of the noise reduction ventilating duct.
3. the special muffler of micronizer according to claim 1, it is characterised in that：The noise reduction ventilating duct includes one
Section muffling curve and one section of noise reduction straight way, it is between the axis of the muffler air inlet and the axis of the muffler air outlet
90°。
4. the special muffler of micronizer according to claim 1, it is characterised in that：The noise reduction ventilating duct includes one
Section noise reduction straight way, the both ends of the noise reduction straight way are connected to muffling curve, and the axis of the muffler air inlet disappears with described
The axis of sound device air outlet is parallel to each other.
5. the special muffler of micronizer according to claim 4, it is characterised in that：Two muffling curves are located at institute
State the same side of noise reduction straight way.
6. the special muffler of micronizer according to claim 4, it is characterised in that：The two muffling curve difference positions
In the both sides of the noise reduction straight way.
7. the special muffler of micronizer according to claim 1, it is characterised in that：The sound gobo is towards described
The front end of muffler air inlet is provided with beloid wedge-shape diversion head.
8. the special muffler of micronizer according to claim 7, it is characterised in that：The sound gobo is towards described
The rear end of muffler air outlet also is provided with wedge-shape diversion head.
9. the special muffler of micronizer according to any one of claim 1 to 8, it is characterised in that：The noise reduction
Uniformly it is distributed with a diameter of 5mm circular hole on orifice plate, each circular hole is in equilateral triangle arrangement, and the centre-to-centre spacing between adjacent circular holes is
8mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721064420.1U CN207187950U (en) | 2017-08-24 | 2017-08-24 | A kind of special muffler of micronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721064420.1U CN207187950U (en) | 2017-08-24 | 2017-08-24 | A kind of special muffler of micronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207187950U true CN207187950U (en) | 2018-04-06 |
Family
ID=61795063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721064420.1U Active CN207187950U (en) | 2017-08-24 | 2017-08-24 | A kind of special muffler of micronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207187950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899066A (en) * | 2021-11-03 | 2022-01-07 | 汉尔姆建筑科技有限公司 | Air duct structure for sound insulation and noise reduction |
-
2017
- 2017-08-24 CN CN201721064420.1U patent/CN207187950U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899066A (en) * | 2021-11-03 | 2022-01-07 | 汉尔姆建筑科技有限公司 | Air duct structure for sound insulation and noise reduction |
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