CN108019378A - Compound broadband silencer - Google Patents
Compound broadband silencer Download PDFInfo
- Publication number
- CN108019378A CN108019378A CN201610949383.6A CN201610949383A CN108019378A CN 108019378 A CN108019378 A CN 108019378A CN 201610949383 A CN201610949383 A CN 201610949383A CN 108019378 A CN108019378 A CN 108019378A
- Authority
- CN
- China
- Prior art keywords
- partition
- partition plate
- sound
- absorbing material
- gas outlet
- 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.)
- Pending
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
- 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
-
- 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
Abstract
The invention provides a kind of compound broadband silencer, including cylindrical shell, the housing both ends are respectively equipped with air inlet and gas outlet, from described air inlet one end, order sets partition plate in the housing, the expansion cavity is arranged in parallel three groups of expansion chambers, chamber inlet is expanded described in three groups and both passes through the first partition, expansion chambers outlet described in three groups is collected at one and passes through the second partition.Sound-absorbing material is set between the partition plate, and the sound-absorbing material is bonded in the inner walls, and the sound-absorbing material outer surface is arranged to waveform, and the sound-absorbing material surface covers wire netting.Compound broadband acoustic wave filter structure design described in the invention is simple, highly practical, can effectively eliminate the noise of different frequency, noise elimination effect is preferable.
Description
Technical field
The invention belongs to silencing equipment technical field, more particularly, to a kind of compound broadband silencer.
Background technology
Noise pollution is one of current four big pollutions, and noise not only causes to damage to hearing, moreover it is possible to a variety of diseases are induced,
The life and work of people has been disturbed.Silencer is the device for allowing air-flow by can still prevent or weaken Acoustic Wave Propagation,
It is one of technical measures for reducing air power noise, is widely used in wind turbine inlet and outlet and air-line system.According to
Silencer, can be divided into dissipative muffler and reactive muffler by noise-cancelling theory, targetedly eliminate the noise of different frequency respectively.
It is but bad for the eradicating efficacy of broadband noise, it is necessary to which designing a kind of complex muffler rational in infrastructure solves existing ask
Topic.
The content of the invention
In view of this, the invention is directed to compound broadband silencer, to solve the problems, such as the elimination of broadband noise, reaches
It is simple in structure to preferable noise elimination effect, it is applied widely.
To reach above-mentioned purpose, what the technical solution of the invention was realized in：
Compound broadband silencer, including cylindrical shell, the housing both ends are respectively equipped with air inlet and gas outlet, in institute
State in housing the order from described air inlet one end set first partition, second partition, the 3rd partition plate, the 4th partition plate and the 5th every
Plate, sets expansion cavity, is set between the second partition and the 3rd partition plate between the first partition and the second partition
Sound-absorbing material is put, through hole, the 5th partition plate and the outlet are equipped with the 3rd partition plate, the 4th partition plate and the 5th partition plate
Porous snorkel is equipped between mouthful.
Further, the air inlet and the gas outlet are respectively provided with flange plate, can design needed for different sizes are connected to
In pipeline.
Further, the expansion cavity is arranged in parallel three groups of expansion chambers, can effectively improve sound deadening capacity, expansion chambers described in three groups
Entrance both passes through the first partition, and expansion chambers outlet described in three groups is collected at one and passes through the second partition, and air-flow leads to
Noise can effectively be reduced by crossing the change in section.
Further, the sound-absorbing material is bonded in the inner walls, and the sound-absorbing material outer surface is arranged to ripple
Shape wave, the contact area of increase noise and the sound-absorbing material, the sound-absorbing material surface covering wire netting as pavement structure,
The sound-absorbing material can be protected.
Further, the lead to the hole site of the 3rd partition plate, the 4th partition plate and the 5th partition plate is different, this
Sample can change the direction of airflow, effectively reduce noise.
Further, described porous snorkel one end is fixedly connected on the 5th partition plate, and the porous snorkel is another
One end is fixedly connected on the gas outlet inner wall.
Further, the through-hole diameter of the porous ventilation tube wall is arranged to from the remote gas outlet to the outlet
Mouthful direction is gradually reduced, different through-hole diameters can specific aim eliminate the noise of different frequency.
Relative to the prior art, the compound broadband silencer described in the invention has the advantage that：
(1) the compound broadband silencer described in the invention effectively eliminates the noise of different frequency, highly practical.
(2) the compound broadband silencer described in the invention is applied widely, and simple in structure, noise elimination effect is preferable.
Brief description of the drawings
The attached drawing for forming the part of the invention is used for providing further understanding the invention, present invention wound
The schematic description and description made is used to explain the invention, does not form the improper restriction to the invention.
In attached drawing：
Fig. 1 is the compound broadband silencer overall structure diagram described in the invention embodiment.
Description of reference numerals：
1- housings；2- air inlets；3- gas outlets；4- first partitions；5- second partitions；The 3rd partition plates of 6-；The 4th partition plates of 7-；
The 5th partition plates of 8-；9- expansion cavities；91- expansion chambers；10- sound-absorbing materials；101- wire nettings；The porous snorkels of 11-；12- flange plates.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the invention can
To be mutually combined.
The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments creates.
Compound broadband silencer, including cylindrical shell 1,1 both ends of housing are respectively equipped with air inlet 2 and gas outlet 3,
From described 2 one end of air inlet, order sets first partition 4, second partition 5, the 3rd partition plate 6, the 4th partition plate 7 in the housing 1
With the 5th partition plate 8, expansion cavity 9, the second partition 5 and described the are set between the first partition 4 and the second partition 5
Sound-absorbing material 10 is set between three partition plates 6, through hole is equipped with the 3rd partition plate 6, the 4th partition plate 7 and the 5th partition plate 8, it is described
Porous snorkel 11 is equipped between 5th partition plate 8 and the gas outlet 3.
The air inlet 2 and the gas outlet 3 are respectively provided with flange plate 12, and the flange plate 12 can design different size connections
In required pipeline.
The expansion cavity 9 is arranged in parallel three groups of expansion chambers 91, can effectively improve sound deadening capacity, 91 entrance of expansion chambers described in three groups
The first partition 4 is both passed through, the outlet of expansion chambers 91 described in three groups is collected at one and passes through the second partition 5, and air-flow leads to
Noise can effectively be reduced by crossing the change in section.
The sound-absorbing material 10 is bonded on 1 inner wall of housing, and 10 outer surface of sound-absorbing material is arranged to waveform,
Increase the contact area of noise and the sound-absorbing material 10,10 surface of the sound-absorbing material covering wire netting 11 is used as mask knot
Structure, can protect the sound-absorbing material 10.
The lead to the hole site of 3rd partition plate 6, the 4th partition plate 7 and the 5th partition plate 8 is different, can so change
Become the direction of airflow, effectively reduce noise.
Described 11 one end of porous snorkel is fixedly connected on the 5th partition plate 8, porous 11 other end of snorkel
It is fixedly connected on 3 inner wall of gas outlet.
The through-hole diameter of 11 tube wall of porous snorkel is arranged to from the remote gas outlet 3 to 3 side of gas outlet
To being gradually reduced, different through-hole diameters can specific aim eliminate the noise of different frequency.
The foregoing is merely the preferred embodiment of the invention, is not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on, should be included in the invention
Protection domain within.
Claims (7)
1. compound broadband silencer, including cylindrical shell (1), it is characterised in that：Housing (1) both ends are respectively equipped with air inlet
Mouth (2) and gas outlet (3), from described air inlet one end, order sets first partition (4), second partition in the housing (1)
(5), the 3rd partition plate (6), the 4th partition plate (7) and the 5th partition plate (8), between the first partition (4) and the second partition (5)
Set expansion cavity (9), between the second partition (5) and the 3rd partition plate (6) setting sound-absorbing material (10), the described 3rd every
Through hole is equipped with plate (6), the 4th partition plate (7) and the 5th partition plate (8), between the 5th partition plate (8) and the gas outlet (3)
Equipped with porous snorkel (11).
2. compound broadband silencer according to claim 1, it is characterised in that：The air inlet (2) and the gas outlet
(3) it is respectively provided with flange plate (12).
3. compound broadband silencer according to claim 1, it is characterised in that：The expansion cavity (9) is arranged in parallel three groups
Expansion chambers (91), expansion chambers (91) entrance both passes through the first partition (4) described in three groups, and expansion chambers (91) described in three groups export
It is collected at one and passes through the second partition (5).
4. compound broadband silencer according to claim 1, it is characterised in that：The sound-absorbing material (10) is bonded in described
On housing (1) inner wall, sound-absorbing material (10) outer surface is arranged to waveform, and sound-absorbing material (10) surface covers iron wire
Net (101).
5. compound broadband silencer according to claim 1, it is characterised in that：3rd partition plate (6), the described 4th every
Plate (7) and the lead to the hole site of the 5th partition plate (8) are different.
6. compound broadband silencer according to claim 1, it is characterised in that：Described porous snorkel (11) one end is fixed
It is connected on the 5th partition plate (8), porous snorkel (11) other end is fixedly connected on the gas outlet (3) inner wall
On.
7. compound broadband silencer according to claim 7, it is characterised in that：Porous snorkel (11) tube wall leads to
Bore dia is arranged to be gradually reduced to the gas outlet (3) direction from away from the gas outlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610949383.6A CN108019378A (en) | 2016-11-02 | 2016-11-02 | Compound broadband silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610949383.6A CN108019378A (en) | 2016-11-02 | 2016-11-02 | Compound broadband silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108019378A true CN108019378A (en) | 2018-05-11 |
Family
ID=62070093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610949383.6A Pending CN108019378A (en) | 2016-11-02 | 2016-11-02 | Compound broadband silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108019378A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764204A (en) * | 2019-03-06 | 2019-05-17 | 西南石油大学 | A kind of natural gas vent sound deadener |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2165230Y (en) * | 1993-06-04 | 1994-05-18 | 许仁忠 | Exhaust catalytic purifying muffler |
| CN203499770U (en) * | 2013-10-18 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Silencer for car |
| CN203570403U (en) * | 2013-12-14 | 2014-04-30 | 宝鸡市鹏盛鑫有色金属有限责任公司 | Novel titanium and titanium alloy automobile muter |
| CN105351037A (en) * | 2015-12-12 | 2016-02-24 | 重庆钰康机械有限公司 | Small-hole high-frequency noise eliminator |
| CN105386814A (en) * | 2015-12-15 | 2016-03-09 | 重庆海特汽车排气系统有限公司 | Silencer for diesel engine |
| CN105909342A (en) * | 2016-06-01 | 2016-08-31 | 陈焕祥 | Silencing equipment for internal combustion engine exhaust pipe |
| CN205654397U (en) * | 2016-04-08 | 2016-10-19 | 杭州建泰机械有限公司 | Improvement structure of making an uproar falls in car exhaust system low frequency |
| CN206360934U (en) * | 2016-11-02 | 2017-07-28 | 天津瑞祥千弘科技发展有限公司 | A kind of composite muffler |
-
2016
- 2016-11-02 CN CN201610949383.6A patent/CN108019378A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2165230Y (en) * | 1993-06-04 | 1994-05-18 | 许仁忠 | Exhaust catalytic purifying muffler |
| CN203499770U (en) * | 2013-10-18 | 2014-03-26 | 安徽江淮汽车股份有限公司 | Silencer for car |
| CN203570403U (en) * | 2013-12-14 | 2014-04-30 | 宝鸡市鹏盛鑫有色金属有限责任公司 | Novel titanium and titanium alloy automobile muter |
| CN105351037A (en) * | 2015-12-12 | 2016-02-24 | 重庆钰康机械有限公司 | Small-hole high-frequency noise eliminator |
| CN105386814A (en) * | 2015-12-15 | 2016-03-09 | 重庆海特汽车排气系统有限公司 | Silencer for diesel engine |
| CN205654397U (en) * | 2016-04-08 | 2016-10-19 | 杭州建泰机械有限公司 | Improvement structure of making an uproar falls in car exhaust system low frequency |
| CN105909342A (en) * | 2016-06-01 | 2016-08-31 | 陈焕祥 | Silencing equipment for internal combustion engine exhaust pipe |
| CN206360934U (en) * | 2016-11-02 | 2017-07-28 | 天津瑞祥千弘科技发展有限公司 | A kind of composite muffler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764204A (en) * | 2019-03-06 | 2019-05-17 | 西南石油大学 | A kind of natural gas vent sound deadener |
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