CN106050750B - Wind Volume chip impedance muffler - Google Patents
Wind Volume chip impedance muffler Download PDFInfo
- Publication number
- CN106050750B CN106050750B CN201610492487.9A CN201610492487A CN106050750B CN 106050750 B CN106050750 B CN 106050750B CN 201610492487 A CN201610492487 A CN 201610492487A CN 106050750 B CN106050750 B CN 106050750B
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- China
- Prior art keywords
- shell
- muffler
- plate
- pieces
- sound
- Prior art date
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 229920000742 Cotton Polymers 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 230000003584 silencer Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 description 7
- 230000008030 elimination Effects 0.000 description 6
- 238000003379 elimination reaction Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 238000012913 prioritisation Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
-
- 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)
- Exhaust Silencers (AREA)
- Duct Arrangements (AREA)
Abstract
The invention particularly discloses Wind Volume chip impedance muffler, including shell, shell includes ventilation housing, side anechoic sheet is fixedly installed on the inner wall of shell, fiber cloth is provided between side anechoic sheet and shell, fiber is covered with the inner wall for being laid on shell, fiber cloth and case bonding；At least two pieces of muffler plates are provided in the ventilation housing of shell, muffler plate is along the air circulation direction of ventilation housing between left and right every setting, sidewall slope of the muffler plate relative to shell, muffler plate space between inconsistent relative to the tilt angle of shell apart from unequal and muffler plate；Muffler plate includes two pieces of perforated plates being oppositely arranged, and through-hole is provided on perforated plate, and sound-absorption glass cotton is completely covered between two pieces of perforated plates being oppositely arranged, and two pieces of perforated plates are adhesively fixed with sound-absorption glass cotton, and the fixation of two pieces of perforated plates is connected on shell.The silencer not only effectively can avoid noise from revealing, and can the noise of different frequency bands width be obstructed and be eliminated.
Description
Technical field
The present invention relates to silencer technical fields, and in particular to Wind Volume chip impedance muffler.
Background technique
Noise easily causes people's agitation, is detrimental to health.Silencer is that one kind can cause air flow through but also effective
The common device of noise is reduced, the evaluation criterion of Muffler Performance mainly includes sound deadening capacity, reproduced air-flow noise and the pressure loss
Three indexs.
The main noise pollution sources of subway station are the noises that high-power blower generates in air-conditioning system, reduce air force and make an uproar
The most effective method of sound is to use Wind Volume silencer, therefore Wind Volume Muffler Performance quality directly affects subway ambient enviroment.
The subway engineering in China mostly uses greatly strong wind slice type silencer at present.Strong wind slice type silencer is that a kind of dissipative muffler is worked as
Air is flowed out from vented cavity, and sound source occurs to rub and absorbs a part of sound energy after entering sound absorption chamber with sound-absorption glass cotton, also
A part of sound can will be taken away by the air in vented cavity.Although the silencer is more significant to medium-high frequency noise elimination effect, low frequency
Noise elimination effect is with regard to poor.
Summary of the invention
The purpose of the present invention is to provide a kind of Wind Volumes that can the noise of different frequency bands width obstructed and be eliminated
Chip impedance muffler.
In order to achieve the above objectives, base case of the invention are as follows: Wind Volume chip impedance muffler, including shell,
Shell includes ventilation housing, and side anechoic sheet is fixedly installed on the inner wall of shell, is provided with fiber between side anechoic sheet and shell
Cloth, fiber are covered with the inner wall for being laid on shell, fiber cloth and case bonding；At least two pieces noise eliminations are provided in the ventilation housing of shell
Plate, muffler plate along the air circulation direction of ventilation housing between left and right every setting, eliminate the noise by sidewall slope of the muffler plate relative to shell
Plate spaces between inconsistent relative to the tilt angle of shell apart from unequal and muffler plate；Muffler plate includes two pieces
The perforated plate being oppositely arranged is provided with through-hole on perforated plate, is completely covered with sound-absorption glass cotton between two pieces of perforated plates being oppositely arranged,
Two pieces of perforated plates are adhesively fixed with sound-absorption glass cotton, and the fixation of two pieces of perforated plates is connected on shell.
The working principle and advantage of this programme are: disappearing in the present solution, being provided at least two pieces in the ventilation housing of shell
Sound plate, along the air circulation direction of ventilation housing between left and right every setting, sidewall slope of the muffler plate relative to shell disappears muffler plate
Sound plate spaces between inconsistent relative to the tilt angle of shell apart from unequal and muffler plate.Above-mentioned setting side
Formula makes the ventilation housing of shell be separated into noise compartment of different sizes by muffler plate.When noise pass through it is compound in this programme
When silencer, speed is different when passing through noise compartment of different sizes every time, meanwhile, noise compartment of different sizes can also
The noise of different frequency bands width is obstructed and eliminated.
Muffler plate in this programme uses double-layer porous hardened structure, and is also bonded with sound-absorption glass between double-layer porous plate
Cotton.It allows for muffler plate so to be on the one hand separated noise, while porous plate also produces the effect of the elimination to noise, because
Noise can be eliminated for sound-absorption glass cotton.And muffler plate is inconsistent relative to the sidewall slope and tilt angle of shell.It can make
Obtaining noise can enter well in the ventilation housing of shell.And fiber cloth is completely spread on shell also while avoiding noise by shell
Upper leakage.Therefore, not only effectively noise can be avoided to reveal using the silencer of this programme, and can be to different frequency bands width
Noise is obstructed and is eliminated, i.e., all preferable to the noise elimination effect of medium-high frequency and low frequency.
Preferred embodiment one: as the preferred embodiment of basic scheme, the through-hole being arranged on perforated plate is bellmouth, bellmouth
Bottom hole and sound-absorption glass cotton patch are closed.Bottom hole and sound-absorption glass the cotton patch conjunction of bellmouth can form cone-shaped cavity.Noise enters cone
After the cone-shaped cavity that shape hole and sound-absorption glass cotton are formed between each other, since cone-shaped cavity entrance is smaller, cone is entered
The intracorporal noise of shape chamber will be absorbed by sound-absorption glass cotton to greatest extent due to the barrier action in space.
Preferred embodiment two: as the preferred embodiment of prioritization scheme one, the bellmouth size being arranged on perforated plate is differed.Cone
Shape hole size differs, i.e. the size of cone-shaped cavity is also all different.It thus can preferably utilize different size of taper
Cavity eliminates different wide band pneumatic noises.
Preferred embodiment three: as the preferred embodiment of prioritization scheme two, sound deadening coating is painted in the plate face of perforated plate.Sound-absorbing
The erasure effect of perforated plate can be improved in coating.
Preferred embodiment four: as the preferred embodiment of prioritization scheme two, the length of muffler plate is unequal.The mesh being arranged in this way
Be the barrier action for further increasing muffler plate to noise.
Detailed description of the invention
Fig. 1 is the silencer cross-sectional view in the embodiment of the present invention；
Fig. 2 is the muffler plate arrangement scheme of installation in the embodiment of the present invention；
Fig. 3 is the muffler plate structural schematic diagram in the embodiment of the present invention.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail:
Appended drawing reference in Figure of description includes: shell 1, fiber cloth 2, side anechoic sheet 3, muffler plate 4, perforated plate 5, inhales
Sound mineral wool 6, ventilation housing 11, bellmouth 51.
Embodiment is substantially as shown in Figure 1, Figure 2 and Figure 3: Wind Volume chip impedance muffler, including shell 1, shell
1 includes ventilation housing 11, and riveting has side anechoic sheet 3 on the inner wall of shell 1.Fiber cloth is provided between side anechoic sheet 3 and shell 1
2, fiber cloth 2 is completely laid on the inner wall of shell 1 and fiber cloth 2 is Nian Jie with shell 1.It is provided in the ventilation housing 11 of shell 1 multiple
Muffler plate 4, muffler plate 4 is along the air circulation direction of ventilation housing 11 between left and right every setting, side of the muffler plate 4 relative to shell 1
Wall inclination.In the present embodiment, muffler plate 4 is spaced between apart from inclination unequal and that muffler plate 4 is relative to shell 1
Angle is inconsistent.
The ventilation housing 11 of shell 1 is separated into noise compartment of different sizes by muffler plate 4, when noise passes through in this programme
Composite muffler when, arrow direction as shown is air circulation direction, is by noise compartment of different sizes every time
Speed is all different, meanwhile, noise compartment of different sizes can also be obstructed and be eliminated to the noise of different frequency bands width.?
In the present solution, muffler plate 4 relative to shell 1 tilt and tilt angle it is inconsistent be a necessary condition.Because only that such
Being arranged just can enable noise to be entered in the ventilation housing 11 of shell 1 well, prevent noise from cannot enter noise compartment.
And fiber cloth 2 is completely spread on shell 1 also while avoiding noise by revealing on shell 1.
Muffler plate 4 in the present embodiment is worn using two-layer composite including two pieces of perforated plates being oppositely arranged 5
Through-hole is provided on orifice plate 5.Sound-absorption glass cotton 6, two pieces of perforated plates 5 and suction are completely covered between two pieces of perforated plates 5 being oppositely arranged
Sound mineral wool 6 is fixed by bonding, and the fixation of two pieces of perforated plates 5 is connected on shell 1.Perforated plate 5 is first is that can make noise
It can directly reach on sound-absorption glass cotton 6, certain reflex on the other hand can be also generated to noise.In muffler plate 4 and noise
Under the collective effect of compartment, the silencer in this programme not only realizes resistive and reactive muffler combination, and can be effective
The wide band pneumatic noise of elimination, improve noise high frequency failure phenomenon.
In the present embodiment, the through-hole being arranged on perforated plate 5 is bellmouth 51, the bottom hole of bellmouth 51 and sound-absorption glass cotton 6
It is bonded and forms cone-shaped cavity.After the cone-shaped cavity that noise enters bellmouth 51 and sound-absorption glass cotton 6 is formed between each other, by
It is small in cone-shaped cavity mouth, therefore the intracorporal noise of conical cavity is entered since the barrier action in space will be inhaled to greatest extent
Sound mineral wool 6 absorbs.
Further, 51 size of bellmouth being arranged on perforated plate 5 is all unequal.In this way, the size of cone-shaped cavity also not phase
Together.Thus preferably different wide band pneumatic noises can be eliminated using different size of cone-shaped cavity.This reality
It applies in example, is also painted with sound deadening coating in the plate face of perforated plate 5.
Further, the length of muffler plate 4 is unequal.When noise follows air by passing through in silencer, adjacent two pieces
Be formed by between muffler plate 4 gap size be it is different, therefore, thus different size of gap can be made to various frequencies
Noise generate barrier action.
Above-described is only optimal enforcement example of the invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, also
Several modifications and improvements can be made, these also should be considered as protection scope of the present invention, these all will not influence of the invention real
The effect and patent practicability applied.The scope of protection required by this application should be based on the content of the claims, specification
In the records such as specific embodiment can be used for explaining the content of claim.
Claims (3)
1. Wind Volume chip impedance muffler, including shell, shell include ventilation housing, fixed on the inner wall of the shell
It is provided with side anechoic sheet, which is characterized in that fiber cloth is provided between the side anechoic sheet and shell, the fiber, which is covered with, to be laid on
The inner wall of shell, fiber cloth and case bonding；At least two pieces of muffler plates are provided in the ventilation housing of shell, muffler plate is along ventilation
The air circulation direction of cavity is between left and right every setting, sidewall slope of the muffler plate relative to shell, between muffler plate is mutual
Gauge is inconsistent relative to the tilt angle of shell from unequal and muffler plate；The muffler plate includes two pieces and is oppositely arranged
Perforated plate is provided with through-hole on perforated plate, sound-absorption glass cotton, two pieces of perforated plates is completely covered between two pieces of perforated plates being oppositely arranged
It is adhesively fixed with sound-absorption glass cotton, the fixation of two pieces of perforated plates is connected on shell, and the length of muffler plate is unequal.
2. Wind Volume chip impedance muffler according to claim 1, which is characterized in that be arranged on the perforated plate
Through-hole be bellmouth, the bottom hole of bellmouth and sound-absorption glass cotton patch are closed.
3. Wind Volume chip impedance muffler according to claim 2, which is characterized in that be arranged on the perforated plate
Bellmouth size differ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492487.9A CN106050750B (en) | 2016-06-29 | 2016-06-29 | Wind Volume chip impedance muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492487.9A CN106050750B (en) | 2016-06-29 | 2016-06-29 | Wind Volume chip impedance muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050750A CN106050750A (en) | 2016-10-26 |
| CN106050750B true CN106050750B (en) | 2019-01-01 |
Family
ID=57167258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610492487.9A Active CN106050750B (en) | 2016-06-29 | 2016-06-29 | Wind Volume chip impedance muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050750B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487966A (en) * | 2018-03-19 | 2018-09-04 | 浙江师范大学 | A kind of impedance adjustable formula magnetic rheology elastic body muffler |
| CN109372801A (en) * | 2018-11-20 | 2019-02-22 | 攀枝花川特风机有限公司 | A kind of efficient shock-absorbing and noise-eliminating device |
| CN111288655A (en) * | 2018-12-06 | 2020-06-16 | 青岛经济技术开发区海尔热水器有限公司 | A noise reduction device and gas water heater |
| CN115711440A (en) * | 2022-08-17 | 2023-02-24 | 厦门呼博仕智能健康科技股份有限公司 | Air box noise reduction device for fresh air cabinet machine and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030066706A1 (en) * | 2001-10-09 | 2003-04-10 | Siemens Vdo Automotive, Inc. | Induction system with low pass filter for turbo charger applications |
| CN201334938Y (en) * | 2009-01-14 | 2009-10-28 | 长沙贝尔环保节能设备有限公司 | Airflow muffler |
| US20100258377A1 (en) * | 2009-04-13 | 2010-10-14 | International Business Machines Corporation | Acoustic cooling muffler for computing systems |
| CN202117734U (en) * | 2011-06-24 | 2012-01-18 | 北京华旭佳音环保科技有限责任公司 | Impedance compound muffler with large wind volume |
| CN103541787A (en) * | 2013-11-09 | 2014-01-29 | 江苏华东正大空调设备有限公司 | Large air-volume piece type impedance composite muffler |
| CN203550165U (en) * | 2013-11-28 | 2014-04-16 | 南车株洲电力机车有限公司 | Air return channel of air conditioner |
| CN203906402U (en) * | 2014-06-06 | 2014-10-29 | 上海申华声学装备有限公司 | Impedance composite muffler |
| CN205876822U (en) * | 2016-06-29 | 2017-01-11 | 广州恒成智道信息科技有限公司 | High -capacity plate type impedance composite muffler |
-
2016
- 2016-06-29 CN CN201610492487.9A patent/CN106050750B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030066706A1 (en) * | 2001-10-09 | 2003-04-10 | Siemens Vdo Automotive, Inc. | Induction system with low pass filter for turbo charger applications |
| CN201334938Y (en) * | 2009-01-14 | 2009-10-28 | 长沙贝尔环保节能设备有限公司 | Airflow muffler |
| US20100258377A1 (en) * | 2009-04-13 | 2010-10-14 | International Business Machines Corporation | Acoustic cooling muffler for computing systems |
| CN202117734U (en) * | 2011-06-24 | 2012-01-18 | 北京华旭佳音环保科技有限责任公司 | Impedance compound muffler with large wind volume |
| CN103541787A (en) * | 2013-11-09 | 2014-01-29 | 江苏华东正大空调设备有限公司 | Large air-volume piece type impedance composite muffler |
| CN203550165U (en) * | 2013-11-28 | 2014-04-16 | 南车株洲电力机车有限公司 | Air return channel of air conditioner |
| CN203906402U (en) * | 2014-06-06 | 2014-10-29 | 上海申华声学装备有限公司 | Impedance composite muffler |
| CN205876822U (en) * | 2016-06-29 | 2017-01-11 | 广州恒成智道信息科技有限公司 | High -capacity plate type impedance composite muffler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106050750A (en) | 2016-10-26 |
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