CN109236753A - A kind of filter and sound damper - Google Patents
A kind of filter and sound damper Download PDFInfo
- Publication number
- CN109236753A CN109236753A CN201811382830.XA CN201811382830A CN109236753A CN 109236753 A CN109236753 A CN 109236753A CN 201811382830 A CN201811382830 A CN 201811382830A CN 109236753 A CN109236753 A CN 109236753A
- Authority
- CN
- China
- Prior art keywords
- sound
- sound absorbing
- filter
- absorbing element
- filtering
- 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
- 238000001914 filtration Methods 0.000 claims abstract description 37
- 229910001220 stainless steel Inorganic materials 0.000 claims description 14
- 239000010935 stainless steel Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 229920001410 Microfiber Polymers 0.000 claims description 7
- 239000003658 microfiber Substances 0.000 claims description 7
- -1 Polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 1
- 230000003584 silencer Effects 0.000 abstract description 27
- 239000007787 solid Substances 0.000 description 10
- 230000008030 elimination Effects 0.000 description 8
- 238000003379 elimination reaction Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 239000013618 particulate matter Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of filter and sound dampers, including air inlet, muffler body and exhaust outlet, the muffler body is internally provided with sound absorbing element, and filtering sound absorbing element is provided at the air inlet, in sound absorbing element front end, the filtering sound absorbing element is folding fan-shaped for the filtering sound absorbing element setting.Acoustical plate of the folding fan-shaped with filtering function is arranged in traditional silencer inlet in filter and sound damper of the invention, ultra-low frequency noise can be effectively treated, and protect sound absorbing element, extend the service life of silencer.
Description
Technical field
The present invention relates to silencer fields, and in particular to a kind of filter and sound damper.
Background technique
The equipment of dedusting exhaust fan etc, air intake can generate very big noise, solve this noise common solution be
Silencer is arranged in inlet, and air is directly entered silencer, and sound can be absorbed by the sound absorbing element in silencer, noise drop
It is low, reach noise elimination effect.To improve sound deadening capacity, flow velocity of the air in silencer cannot be too high, general only velocity in pipes
Half is to one third, and at certain positions of sound absorber, flow velocity can be lower.However it is solid containing dust, flue dust etc. in air
Body particulate matter can enter silencer, block silencer element, and sound deadening capacity is reduced or disappeared.
Main problem existing for present silencer is, contained in air since flow velocity reduces dusty gas in silencer
Solid particulate matter can be deposited in the silencer element in silencer, block silencer element, sound deadening capacity reduces, until losing and disappearing
Sound function.Meanwhile existing silencer is handled for the noise of medium-high frequency mostly, to low frequency especially ultra-low frequency noise
Processing is more difficult.
Summary of the invention
It is an object of the invention to: in view of the above problems, the present invention provides a kind of filter and sound damper, traditional
The acoustical plate with filtering function is arranged in silencer inlet, protects sound absorbing element, extends the service life of silencer, and energy
Ultra-low frequency noise is enough effectively treated.
The technical solution adopted by the invention is as follows:
Filter and sound damper of the invention, including air inlet, muffler body and exhaust outlet, the muffler body are internally provided with sound absorption
Element, filtering sound absorbing element is provided at the air inlet, and the filtering sound absorbing element is arranged in sound absorbing element front end, the mistake
Filter sound absorbing element is folding fan-shaped.
Since using the above structure, the filter area of folding fan-shaped filtering sound absorbing element is the number of air inlet inlet area
Ten times, filter element surface product is very big, so as to reduce the influence of effective filtration area reduction after solids particles precipitate, and mistake
The service life of filtering element can increase.In addition, folding fan-shaped structure can effectively consume ultra-low frequency noise, and make an uproar after treatment
Sound can drop to 30 decibels or less.
Further, the filtering sound absorbing element includes that stainless steel washs stratum reticulare, filter layer of cloth and fiber filtering layer.
Further, the filter layer of cloth setting is washed between stratum reticulare and fiber filtering layer in stainless steel, and the stainless steel washs net
Layer is arranged close to air inlet.
Further, the stainless steel is washed and is all covered with polytetrafluoroethylene (PTFE) on stratum reticulare, filter layer of cloth and fiber filtering layer.
Further, the sound absorbing element includes one or more layers sound absorbing member, and the sound absorbing member includes external porous
Plate and internal microfibre filled layer.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, filtering sound absorbing element is arranged in silencer element front end, first by the solid particle in gas in filter and sound damper of the invention
It eliminates the noise again after being filtered processing, is effectively protected sound absorbing element, extends the service life of silencer.
2, filtering sound absorbing element is arranged to folding fan-shaped structure, the surface area of filter element is increased, so as to reduce
The influence of effective filtration area reduction after solids particles precipitate, extends the service life of filter element.
3, folding fan-shaped structured filter sound absorbing element can effectively be directed to various frequency noises, especially ultra-low frequency noise,
Noise decibel after treatment can drop to 30 decibels hereinafter, efficiently solving that existing ultra-low frequency noise is difficult to ask
Topic.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of filter and sound damper of the present invention；
Fig. 2 is the enlarged drawing of present invention filtering sound absorbing element；
Fig. 3 is the sectional view of sound absorbing element of the present invention；
Fig. 4 is the enlarged drawing of sound absorbing element of the present invention.
Marked in the figure: 1- muffler body, 2- air inlet, 3- sound absorbing element, 4- exhaust outlet, 5- filter sound absorbing element, 6- is more
Orifice plate, 7- microfibre.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, filter and sound damper of the invention, including air inlet 2, muffler body 1 and exhaust outlet 4, the noise elimination
Body 1 is internally provided with sound absorbing element 3, and the sound absorbing element 3 includes one or more layers sound absorbing member, and the sound absorbing member includes
External porous plate and internal microfibre filled layer.
As shown in Figure 3-4, sound absorbing element 3 is made of porous plate 6 and internal microfibre 7 etc..Sound is a kind of vibration, is made an uproar
Sound i.e. air or other object vibrations.The tiny air column for including in the hole of porous plate in silencer is under the action of sound wave
Vibration, consumes a part of sound energy, meanwhile, hole wall and windage also sound energy consumption can convert heat energy dissipation for sound and fall, this is just
It is to eliminate the noise.The sound wave being attenuated passes through aperture, excites internal microfibre vibration, continues sound energy consumption, and sound wave continues to decay,
Further eliminate the noise.
However, aperture is blocked when solid particulate matter is deposited on silencer element surface, air column is reduced or is disappeared, consumption
Sound can reduce, will lead to sound deadening capacity reduction.Meanwhile solid particulate matter is adhered to microfibre surface, is deposited on the hole of fiber
In gap, the rigidity of fiber is made to become larger, amplitude reduces after insonating, and the sound of consumption can reduce, that is, sound deadening capacity reduces, directly
To losing noise elimination function.So silencer element works and can be blocked in the air dielectric containing particulate matter (flue dust or dust), disappear
Volume reduces, until disappearing, it has to scrap.
Therefore, in a preferred embodiment, in order to avoid the blocking of sound absorbing element 3, setting filtering is inhaled at air inlet 2
Sound component 5, and filtering sound absorbing element 5 is arranged in 3 front end of sound absorbing element, after dust laden air enters air inlet 2, it can first pass through
Filter sound absorbing element 5 is filtered sound absorption, while reaching sound absorbing element 3 again and further being absorbed sound, and is then discharged from exhaust outlet 4,
So as to avoid silencer element from blocking, the maintenance cost of silencer is reduced.
Preferably, filtering sound absorbing element 5 is designed to folding fan-shaped.The filter area of folding fan-shaped filtering sound absorbing element is empty
The decades of times of gas inlet port area, filter element surface product is very big, so as to reduce effective mistake after solids particles precipitate
The reduced influence of filtering surface product, increases the service life of filter element, and will not influence noise elimination effect.
As shown in Figure 2, the filtering sound absorbing element 5 includes that stainless steel washs stratum reticulare, filter layer of cloth and fiber filtering layer, the filter
Layer of cloth setting is washed between stratum reticulare and fiber filtering layer in stainless steel, and the stainless steel is washed stratum reticulare and is arranged close to air inlet 2.Containing particle
When the gas of object passes through sound absorption filter element 5, particle is biggish to wash net interception by stainless steel first, is adhered to stainless steel and washs stratum reticulare
On, when thinner solid particle reaches filter layer of cloth and fiber filtering layer, filter is attached under the comprehensive functions such as electrostatic, Brownian movement
In the hole of cloth and fiber filtering, that is, particulate matter is filtered.Meanwhile the fibrous material, no of stratiform filtering sound absorbing element
Rust steel washs net and air wherein included postbacks raw vibration under the action of sound wave, and sound energy consumption plays the role of noise elimination.
Since existing silencer is handled primarily directed to high-frequency noises, make an uproar to low-frequency noise especially ultra-low frequency
The processing of sound is limited, and the frequency range of ultra-low frequency noise is less than 60HZ, and wavelength is longer, and acoustic transparency is strong, special at present low
The noise elimination processing of frequency noise is more difficult.Through overtesting, filtering silencer element of the invention is capable of handling multi-frequency noise, especially
It can effectively be handled for the noise elimination of ultra-low frequency noise.Its folding fan-shaped structure can effectively consume ultra-low frequency noise and process
Noise can drop to 30 decibels hereinafter, can also be handled simultaneously for gas-liquid two-phase medium after processing.
Further, the cleaning of silencer element is filtered for convenience, and the stainless steel washs stratum reticulare, filter layer of cloth and fiber filtering layer
On be all covered with polytetrafluoroethylene (PTFE), the minimum affinity very little between solid particle of the surface tension of polytetrafluoroethylene (PTFE), because
This can directly with compressed air or be rinsed with water when covering more particulate matter on filter element, restore noise elimination filter function
Energy.
A kind of filter and sound damper provided by the present invention is described in detail above.
Principle and implementation of the present invention are described for specific embodiment used herein, above embodiments
Explanation be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for technical staff, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (5)
1. a kind of filter and sound damper, including air inlet (2), muffler body (1) and exhaust outlet (4), the muffler body (1) is internal
It is provided with sound absorbing element (3), which is characterized in that filtering sound absorbing element (5) is provided at the air inlet (2), the filtering is inhaled
In sound absorbing element (3) front end, the filtering sound absorbing element (5) is folding fan-shaped for sound component (5) setting.
2. filter and sound damper according to claim 1, which is characterized in that the filtering sound absorbing element (5) includes stainless steel
Wash stratum reticulare, filter layer of cloth and fiber filtering layer.
3. filter and sound damper according to claim 2, which is characterized in that filter layer of cloth setting stainless steel wash stratum reticulare and
Between fiber filtering layer, the stainless steel is washed stratum reticulare and is arranged close to air inlet (2).
4. filter and sound damper according to claim 2, which is characterized in that the stainless steel washs stratum reticulare, filter layer of cloth and fiber
Polytetrafluoroethylene (PTFE) is all covered on filter material layer.
5. filter and sound damper according to claim 1, which is characterized in that the sound absorbing element (3) includes one or more layers
Sound absorbing member, the sound absorbing member include external porous plate and internal microfibre filled layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382830.XA CN109236753A (en) | 2018-11-20 | 2018-11-20 | A kind of filter and sound damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382830.XA CN109236753A (en) | 2018-11-20 | 2018-11-20 | A kind of filter and sound damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109236753A true CN109236753A (en) | 2019-01-18 |
Family
ID=65075303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811382830.XA Pending CN109236753A (en) | 2018-11-20 | 2018-11-20 | A kind of filter and sound damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236753A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700426A (en) * | 2009-11-24 | 2010-05-05 | 张涛 | Air filter for breathing and filter element thereof |
| CN102225281A (en) * | 2011-03-31 | 2011-10-26 | 厦门建霖工业有限公司 | Multifunctional three-layer type air strainer |
| CN202151522U (en) * | 2011-07-02 | 2012-02-29 | 潍坊恒联玻璃纸有限公司 | Plate and frame filtering device for waste viscose |
| CN203214450U (en) * | 2012-10-09 | 2013-09-25 | 湖北双剑鼓风机股份有限公司 | Filtering silencer |
| CN204246987U (en) * | 2014-11-26 | 2015-04-08 | 上海禾益净化设备制造有限公司 | A kind of safety cabinet gas discharging Rose Box |
| CN204663627U (en) * | 2015-04-02 | 2015-09-23 | 刘玺 | Be applicable to combined impedance silencing apparatus that is middle and high, low frequency noise elimination |
| CN205245292U (en) * | 2015-12-29 | 2016-05-18 | 安徽国茂机电设备有限公司 | Medium -and -large -sized commercial oil smoke purifies all -in -one |
| CN205677884U (en) * | 2016-06-24 | 2016-11-09 | 湖州晶晶环保科技有限公司 | A kind of sand-proof type fans silencer |
| CN205731906U (en) * | 2016-06-27 | 2016-11-30 | 杭州健培科技有限公司 | A kind of gas cleaning plant of coating machine oven |
| CN209129940U (en) * | 2018-11-20 | 2019-07-19 | 攀枝花川特风机有限公司 | A kind of filter and sound damper |
-
2018
- 2018-11-20 CN CN201811382830.XA patent/CN109236753A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700426A (en) * | 2009-11-24 | 2010-05-05 | 张涛 | Air filter for breathing and filter element thereof |
| CN102225281A (en) * | 2011-03-31 | 2011-10-26 | 厦门建霖工业有限公司 | Multifunctional three-layer type air strainer |
| CN202151522U (en) * | 2011-07-02 | 2012-02-29 | 潍坊恒联玻璃纸有限公司 | Plate and frame filtering device for waste viscose |
| CN203214450U (en) * | 2012-10-09 | 2013-09-25 | 湖北双剑鼓风机股份有限公司 | Filtering silencer |
| CN204246987U (en) * | 2014-11-26 | 2015-04-08 | 上海禾益净化设备制造有限公司 | A kind of safety cabinet gas discharging Rose Box |
| CN204663627U (en) * | 2015-04-02 | 2015-09-23 | 刘玺 | Be applicable to combined impedance silencing apparatus that is middle and high, low frequency noise elimination |
| CN205245292U (en) * | 2015-12-29 | 2016-05-18 | 安徽国茂机电设备有限公司 | Medium -and -large -sized commercial oil smoke purifies all -in -one |
| CN205677884U (en) * | 2016-06-24 | 2016-11-09 | 湖州晶晶环保科技有限公司 | A kind of sand-proof type fans silencer |
| CN205731906U (en) * | 2016-06-27 | 2016-11-30 | 杭州健培科技有限公司 | A kind of gas cleaning plant of coating machine oven |
| CN209129940U (en) * | 2018-11-20 | 2019-07-19 | 攀枝花川特风机有限公司 | A kind of filter and sound damper |
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