CN201666174U - Low PSA decibel muffler - Google Patents
Low PSA decibel muffler Download PDFInfo
- Publication number
- CN201666174U CN201666174U CN2010201393452U CN201020139345U CN201666174U CN 201666174 U CN201666174 U CN 201666174U CN 2010201393452 U CN2010201393452 U CN 2010201393452U CN 201020139345 U CN201020139345 U CN 201020139345U CN 201666174 U CN201666174 U CN 201666174U
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- baffler
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Abstract
The utility model discloses a low PSA decibel muffler which comprises a barrel, an air inlet end seal head and an exhausting end seal head which are respectively arranged at both ends of the barrel and firmly weld with the end heads at both ends of the barrel; the interior of the barrel is provided with a diffusion plate and a plurality of sound absorbing layers; the diffusion plate is near to an air inlet end; each sound absorbing layer comprises two pore plates and natural coir mattresses arranged between the pore plates; the interior layer of the barrel is provided with a layer of noise reduction cotton; the center of the air inlet end seal head is provided with an air inlet pipe; the center of the exhausting end seal head is provided with an exhaust pipe; and the low PSA decibel muffler causes certain frequency sound waves spread along the pipeline to be reflected, interfered and the like on the mutational interface so as to attenuate the intensity of the sound waves by using resistibility noise reduction structures on an inner pipeline of the barrel such as a mutational interface or a resonator and the like, and simultaneously converts the sound energy into the thermal energy to consume away by using the sound waves suffering from the frictional and viscous resistance when the sound waves are spread in resistance structures such as porous sound-absorbing material and the like, thus achieving the requirement of noise elimination and noise reduction.
Description
Technical field
The utility model relates to a kind of air separation plant parts, refers more particularly to the low decibel of a kind of PSA baffler.
Background technique
At present at transformation absorption system nitrogen, the baffler that use in air separation plant fields such as system oxygen and Compressed air drying generally all adopts the aperture baffler, make simple, with low cost, but erasure effect is not good, in order to reach better erasure effect, people have done certain improvement to the structure of baffler, as China Patent No. is CN200810021382.0, name is called a kind of patent of invention of baffler, comprise suction tude housing and end socket, have the inlet hole of a plurality of small pore-like on the described suction tude, described suction tude top seal, it is characterized in that in the described housing near the end socket place be provided with one fixedly fishplate bar housing is divided into housing ante-chamber and housing back cavity, have a plurality of looping pits on the described housing back cavity, increased fixed dam in the baffler, make urceolus be divided into chamber, front and back two partly, make erasure effect obtain increase, the increase of pipe simultaneously, make air-flow produce backflow, the effect that meets the aperture noise reduction, but because noise reduction only is to utilize the sudden change of pipeline and side to connect resistance noise reductions such as resonant cavity, still there is certain deficiency in control to wideband noise, can't reach preferable noise reduction sound-absorbing effect.
The model utility content
The utility model solves mainly that common baffler has only single resistance decrease of noise functions and the not good technical problem of broad-band noise control when causing exhaust; Provide a kind of with resistance noise reduction flat textural associations such as resistance denoising structure such as pipeline interface sudden change and sound-absorbing porous materials, reach the low decibel of the PSA baffler of better control broad-band noise.
In order to solve the technical problem of above-mentioned existence, the utility model mainly is to adopt following technical proposals:
The utility model comprise cylindrical shell and be located at the cylindrical shell two ends and respectively with the inlet end end socket and the exhaust end end socket of termination, cylindrical shell two ends firm welding, be provided with diffuser plate in the described cylindrical shell, equal fluid layer and some sound-absorption layers, described diffuser plate is near inlet end, described equal fluid layer is near the outlet side, described sound-absorption layer is arranged between diffuser plate and the equal fluid layer, sound-absorption layer comprises two orifice plates and is located at sound absorbing material between the orifice plate, the central authorities of described inlet end end socket are provided with suction tude, the central authorities of described exhaust end end socket are provided with outlet pipe, by resistive absorbing sound and lowering noise material and reactive muffling flat textural association are got up, reach the purpose of the high strength wideband noise that produces when controlling the air-flow emptying preferably.
As preferably, described diffuser plate is the spherical shape sheetmetal, the center of circle of described spherical shape sheetmetal is towards inlet end, the spherical shape sheetmetal is provided with a plurality of equally distributed circular holes, utilize the interface of diffuser plate sudden change and fine and closely woven resistance structures such as aperture, make some frequency sound wave along pipe transmmision, in the reflecting at the interface of sudden change, phenomenons such as interference and frictional damping heating, play the effect of noise elimination flat, the edge of diffuser plate and the inwall of described cylindrical shell weld, and have improved the impact strength of diffuser plate.
As preferably, described sound-absorption layer is 2～6 layers, described suction port reduces successively to each interlamellar spacing between the air outlet, sound absorbing material in the middle of the described sound-absorption layer is the crude palm pad, crude palm pad elasticity is moderate and soft firmly, have characteristics such as antifatigue, resilience be indeformable, technical orders such as its compression load, times of fatigue, bond strength, ageing-resistant degree and constant voltage permanent deformation are all higher, can satisfy the each side requirement preferably as sound absorbing material, the sound-absorption layer of different spacing can be decayed and be interfered to fall the noise of different frequency, reaches the effect of wideband noise reduction.
As preferably, described sound-absorption layer comprises first sound-absorption layer that is arranged in order to outlet from import, second sound-absorption layer and the 3rd sound-absorption layer, first sound-absorption layer is made up of the crude palm pad between two spherical shape orifice plates and the orifice plate, the center of circle of described spherical shape orifice plate is towards inlet end, spacing between two spherical shape orifice plates all equates, second sound-absorption layer and the 3rd sound-absorption layer are made up of two parallel plane orifice plates and the crude palm pad between the orifice plate respectively, described crude palm pad all closely contacts with corresponding orifice plate, utilize sound wave when the porosity sound absorbing material is propagated, rubbed and the principle of viscous resistance, the acoustic energy of noise is converted into thermal dissipation falls, thereby reach the purpose of noise elimination flat.
As preferably, described spherical shape orifice plate or plane orifice plate are the circular metal thin plate, described sheetmetal is provided with a plurality of equally distributed circular holes, utilize the sudden change and the frictional damping of aperture, the movement velocity of sound wave is changed and decay, reach the effect of noise reduction, the edge of spherical shape orifice plate or plane orifice plate all with the welding of the inwall of cylindrical shell, strengthened the structural strength of orifice plate.
As preferably, the crude palm mat thickness of described the 3rd sound-absorption layer is greater than the crude palm mat thickness of second sound-absorption layer, and the crude palm mat thickness of second sound-absorption layer is greater than the crude palm mat thickness of first sound-absorption layer, and the brown mat thickness of Zeng Jiaing makes noise reduction more thorough gradually.
As preferably, described equal fluid layer comprises two parallel and separate circular metal thin plates, and described circular metal thin plate is provided with a plurality of equally distributed circular holes, the all inwall of the edge of fluid layer and cylindrical shell welding, air-flow makes air-flow more steady all mixing current-sharing again in the fluid layer, and it is littler to pulse.
As preferably; the inwall of described cylindrical shell is provided with one deck noise reduction cotton; described noise reduction is cotton closely to be contacted with cylinder inboard wall; cylindrical shell had both been protected in the setting of cylinder inboard wall noise reduction cotton; the silencer wall that makes cylinder inboard wall become resistance hinders the motion of air-flow; absorb a part of noise energy again, alleviated the noise load that follow-up structure is born.
As preferably, described inlet end end socket is plate shaped end socket, the central authorities of described plate shaped end socket are provided with suction tude, the part of described suction tude is located in the described cylindrical shell, suction tude pipe end port closed in the described cylindrical shell, the inboard suction tude tube wall of tube is provided with equally distributed some through holes, through hole makes gas to diffusion all around, the speed and the direction of air-flow have been changed, alleviated the impact strength of air-flow to cylindrical shell and diffuser plate, make air-flow be evenly distributed to the surface of diffuser plate, reduced the airflow loads on the unit area.
As preferably, described exhaust end end socket is an ellipsoidal head, and the central authorities of described ellipsoidal head are provided with outlet pipe, the diameter of described outlet pipe is greater than the diameter of described suction tude, one end of outlet pipe is welded on the ellipsoidal head, and the other end port is welded with flat flange, the drawing of easy to exhaust pipe.
The beneficial effects of the utility model are: utilize resistance denoising structures such as the interface that suddenlys change on the pipeline or resonant cavity, make some frequency sound wave along pipe transmmision, in the reflecting at the interface of sudden change, phenomenon such as interference, the attenuate sound wave intensity, when utilizing sound wave in resistive structures such as sound-absorbing porous material, to propagate again simultaneously, rubbed and viscous resistance, acoustic energy is converted into thermal energy consumption falls, thereby reached the requirement of noise elimination flat.
Description of drawings
Fig. 1 is a kind of cross-sectional view of the present utility model.
1. cylindrical shells among the figure, 2. inlet end end socket, 3. exhaust end end socket, 4. diffuser plate, 5. suction tude, 6. outlet pipe, 7. first sound-absorption layer, 8. second sound-absorption layer, 9. the 3rd sound-absorption layer, 10. equal fluid layer, 11. noise reduction cottons.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the low decibel of a kind of PSA of present embodiment baffler, as shown in Figure 1, comprise cylindrical shell 1, be located at the cylindrical shell two ends and respectively with the inlet end end socket 2 and the exhaust end end socket 3 of termination, cylindrical shell two ends firm welding, design has diffuser plate 4 in the cylindrical shell, equal fluid layer 10 and three sound-absorption layers, diffuser plate is near inlet end, all fluid layer is near the outlet side, sound-absorption layer is arranged between diffuser plate and the equal fluid layer, suction port reduces successively to each interlamellar spacing between the air outlet, diffuser plate is the spherical shape sheetmetal, the center of circle of spherical shape sheetmetal is towards inlet end, have a plurality of equally distributed circular holes on the diffuser plate, the edge of diffuser plate and the welding of the inwall of cylindrical shell, all fluid layer comprises two parallel and separate circular metal thin plates, have a plurality of equally distributed circular holes on the circular metal thin plate, the all inwall of the edge of fluid layer and cylindrical shell welding, sound-absorption layer comprises first sound-absorption layer 7 that is arranged in order to outlet from import, second sound-absorption layer 8 and the 3rd sound-absorption layer 9, first sound-absorption layer is made up of the crude palm pad between two spherical shape orifice plates and the orifice plate, the center of circle of spherical shape orifice plate is towards inlet end, spacing between two spherical shape orifice plates all equates, second sound-absorption layer and the 3rd sound-absorption layer are made up of two parallel plane orifice plates and the crude palm pad between the orifice plate respectively, the crude palm pad all closely contacts with corresponding orifice plate, spherical shape orifice plate or plane orifice plate are the circular metal thin plate, have the equally distributed circular hole of multi-turn on the circular metal thin plate, the edge of spherical shape orifice plate or plane orifice plate all with the welding of the inwall of cylindrical shell, the crude palm mat thickness of the 3rd sound-absorption layer is greater than the crude palm mat thickness of second sound-absorption layer, and the crude palm mat thickness of second sound-absorption layer is again greater than the crude palm mat thickness of first sound-absorption layer.Be pasted with one deck noise reduction cotton 11 on the inwall of cylindrical shell.The inlet end end socket is plate shaped end socket, and the central authorities of plate shaped end socket are welded with suction tude 5, and the part of suction tude is arranged in the cylindrical shell, and the suction tude pipe end port closed in the cylindrical shell simultaneously, has equally distributed some through holes on the tube wall of the inboard suction tude of tube.The exhaust end end socket is an ellipsoidal head, and the central authorities of ellipsoidal head are welded with outlet pipe 6, and the diameter of outlet pipe is greater than the diameter of suction tude, and an end of outlet pipe is welded on the ellipsoidal head, and the other end port is welded with flat flange.
Claims (10)
1. a PSA hangs down the decibel baffler, it is characterized in that: comprise cylindrical shell (1), be located at the cylindrical shell two ends and respectively with the inlet end end socket (2) and the exhaust end end socket (3) of termination, cylindrical shell two ends welding, be provided with diffuser plate (4) in the described cylindrical shell, equal fluid layer (10) and some sound-absorption layers, described diffuser plate is near inlet end, described equal fluid layer is near the outlet side, described sound-absorption layer is arranged between diffuser plate and the equal fluid layer, sound-absorption layer is made up of two orifice plates and the sound absorbing material that is located between the orifice plate, the central authorities of described inlet end end socket are provided with suction tude (5), and the central authorities of described exhaust end end socket are provided with outlet pipe (6).
2. the low decibel of a kind of PSA according to claim 1 baffler, it is characterized in that: described diffuser plate (4) is the spherical shape sheetmetal, the center of circle of described spherical shape sheetmetal is towards inlet end, diffuser plate is provided with a plurality of equally distributed circular holes, the inwall welding of the edge of diffuser plate and described cylindrical shell (1).
3. the low decibel of a kind of PSA according to claim 1 baffler, it is characterized in that: described sound-absorption layer is 2～6 layers, and described suction port reduces successively to each interlamellar spacing between the air outlet, and the sound absorbing material in the middle of the described sound-absorption layer is the crude palm pad.
4. according to claim 1 or the low decibel of 3 described a kind of PSA baffler, it is characterized in that: described sound-absorption layer comprises first sound-absorption layer (7) that is arranged in order from entrance point to outlet end, second sound-absorption layer (8) and the 3rd sound-absorption layer (9), first sound-absorption layer is made up of the crude palm pad between two spherical shape orifice plates and the orifice plate, the center of circle of described spherical shape orifice plate is towards inlet end, spacing between two spherical shape orifice plates all equates, second sound-absorption layer and the 3rd sound-absorption layer are made up of two parallel plane orifice plates and the crude palm pad between the orifice plate respectively, and described crude palm pad all closely contacts with corresponding orifice plate.
5. the low decibel of a kind of PSA according to claim 4 baffler, it is characterized in that: described spherical shape orifice plate or plane orifice plate are the circular metal thin plate, described sheetmetal is provided with a plurality of equally distributed circular holes, the edge of spherical shape orifice plate or plane orifice plate all with the welding of the inwall of cylindrical shell (1).
6. the low decibel of a kind of PSA according to claim 4 baffler, it is characterized in that: the crude palm mat thickness of described the 3rd sound-absorption layer (9) is greater than the crude palm mat thickness of second sound-absorption layer (8), and the crude palm mat thickness of second sound-absorption layer (8) is greater than the crude palm mat thickness of first sound-absorption layer (7).
7. the low decibel of a kind of PSA according to claim 1 baffler, it is characterized in that: described equal fluid layer (10) comprises two parallel and separate circular metal thin plates, described circular metal thin plate is provided with a plurality of equally distributed circular holes, all inwall of the edge of fluid layer and cylindrical shell (1) welding.
8. the low decibel of a kind of PSA according to claim 1 baffler, it is characterized in that: the inwall of described cylindrical shell (1) is provided with one deck noise reduction cotton (11), and described noise reduction is cotton closely to be contacted with cylinder inboard wall.
9. the low decibel of a kind of PSA according to claim 1 baffler, it is characterized in that: described inlet end end socket (2) is plate shaped end socket, the central authorities of described plate shaped end socket are provided with suction tude (5), the part of described suction tude is located at the inboard of described cylindrical shell (1), the suction tude port closed of described cylindrical shell inboard, the suction tude tube wall of cylindrical shell inboard is provided with equally distributed some through holes.
10. the low decibel of a kind of PSA according to claim 1 baffler, it is characterized in that: described exhaust end end socket (3) is an ellipsoidal head, the central authorities of described ellipsoidal head are provided with outlet pipe (6), the caliber of described outlet pipe is greater than the caliber of described suction tude (5), one end port of outlet pipe is welded on the ellipsoidal head, and the other end port is welded with flat flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201393452U CN201666174U (en) | 2010-03-24 | 2010-03-24 | Low PSA decibel muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201393452U CN201666174U (en) | 2010-03-24 | 2010-03-24 | Low PSA decibel muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666174U true CN201666174U (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201393452U Expired - Fee Related CN201666174U (en) | 2010-03-24 | 2010-03-24 | Low PSA decibel muffler |
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| CN (1) | CN201666174U (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950375A (en) * | 2011-08-18 | 2013-03-06 | 天津力神电池股份有限公司 | Silencer of spot welder |
| WO2013078927A1 (en) * | 2011-11-29 | 2013-06-06 | 中国商用飞机有限责任公司 | Silencer |
| CN103629167A (en) * | 2012-08-27 | 2014-03-12 | 任文华 | Fan |
| CN103671281A (en) * | 2013-11-06 | 2014-03-26 | 曹莹莹 | Air blower outlet pipeline type silencer |
| CN103968364A (en) * | 2013-12-24 | 2014-08-06 | 华电重工股份有限公司 | Method and device for controlling noise in waste heat boiler |
| CN104088689A (en) * | 2014-07-08 | 2014-10-08 | 杭州鼎岳空分设备有限公司 | Straight pipe type silencer |
| CN105065100A (en) * | 2015-08-07 | 2015-11-18 | 无锡市悦丰化工有限公司 | Exhaust silencer |
| CN105402004A (en) * | 2015-12-18 | 2016-03-16 | 吉林大学 | Diesel engine silencer used for high-power agricultural machinery |
| CN106014574A (en) * | 2016-07-06 | 2016-10-12 | 珠海格力电器股份有限公司 | Noise silencer |
| CN106014540A (en) * | 2016-05-31 | 2016-10-12 | 芜湖卓越空调零部件有限公司 | Engine rotating silencer |
| CN106523102A (en) * | 2016-10-25 | 2017-03-22 | 中原工学院 | Multifunctional efficient heat recovery type vehicle fuel gas smoke exhaust system |
| CN106523439A (en) * | 2016-10-26 | 2017-03-22 | 湖南航翔燃气轮机有限公司 | Intermediate-high frequency compound silencer and air blower |
| CN107208643A (en) * | 2015-06-11 | 2017-09-26 | 伊顿公司 | Shaft bearing plate muffler |
| CN108674132A (en) * | 2018-05-24 | 2018-10-19 | 文丹 | A kind of new-energy automotive air-conditioning refrigeration pipeline muffler |
| CN109185390A (en) * | 2018-09-18 | 2019-01-11 | 方碧水 | A kind of environment-friendly type silencing apparatus |
| CN109687632A (en) * | 2018-12-27 | 2019-04-26 | 佛山市顺德区深研机电设备有限公司 | A kind of environmental protection noise reducing type interpolation axis servo motor |
| CN114345677A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Valve sleeve type pneumatic vibrator |
| CN115254602A (en) * | 2022-08-02 | 2022-11-01 | 中粮山萃花生制品(威海)有限公司 | Nut screening device and application method thereof |
-
2010
- 2010-03-24 CN CN2010201393452U patent/CN201666174U/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950375A (en) * | 2011-08-18 | 2013-03-06 | 天津力神电池股份有限公司 | Silencer of spot welder |
| WO2013078927A1 (en) * | 2011-11-29 | 2013-06-06 | 中国商用飞机有限责任公司 | Silencer |
| CN103629167A (en) * | 2012-08-27 | 2014-03-12 | 任文华 | Fan |
| CN103671281A (en) * | 2013-11-06 | 2014-03-26 | 曹莹莹 | Air blower outlet pipeline type silencer |
| CN103968364A (en) * | 2013-12-24 | 2014-08-06 | 华电重工股份有限公司 | Method and device for controlling noise in waste heat boiler |
| CN103968364B (en) * | 2013-12-24 | 2016-02-03 | 华电重工股份有限公司 | The control method of internal noise of waste heat boiler and device |
| CN104088689A (en) * | 2014-07-08 | 2014-10-08 | 杭州鼎岳空分设备有限公司 | Straight pipe type silencer |
| CN107208643A (en) * | 2015-06-11 | 2017-09-26 | 伊顿公司 | Shaft bearing plate muffler |
| CN105065100A (en) * | 2015-08-07 | 2015-11-18 | 无锡市悦丰化工有限公司 | Exhaust silencer |
| CN105402004A (en) * | 2015-12-18 | 2016-03-16 | 吉林大学 | Diesel engine silencer used for high-power agricultural machinery |
| CN106014540A (en) * | 2016-05-31 | 2016-10-12 | 芜湖卓越空调零部件有限公司 | Engine rotating silencer |
| CN106014540B (en) * | 2016-05-31 | 2018-10-26 | 芜湖卓越空调零部件有限公司 | A kind of Rotary Muffler for Engine |
| CN106014574A (en) * | 2016-07-06 | 2016-10-12 | 珠海格力电器股份有限公司 | Noise silencer |
| CN106014574B (en) * | 2016-07-06 | 2019-01-04 | 珠海格力电器股份有限公司 | Noise silencer |
| CN106523102A (en) * | 2016-10-25 | 2017-03-22 | 中原工学院 | Multifunctional efficient heat recovery type vehicle fuel gas smoke exhaust system |
| CN106523439A (en) * | 2016-10-26 | 2017-03-22 | 湖南航翔燃气轮机有限公司 | Intermediate-high frequency compound silencer and air blower |
| CN106523439B (en) * | 2016-10-26 | 2017-10-10 | 湖南航翔燃气轮机有限公司 | Medium, high frequency complex muffler and air blower |
| CN108674132A (en) * | 2018-05-24 | 2018-10-19 | 文丹 | A kind of new-energy automotive air-conditioning refrigeration pipeline muffler |
| CN109185390A (en) * | 2018-09-18 | 2019-01-11 | 方碧水 | A kind of environment-friendly type silencing apparatus |
| CN109185390B (en) * | 2018-09-18 | 2020-05-08 | 马鞍山纽盟知识产权管理服务有限公司 | Environment-friendly noise eliminator |
| CN109687632A (en) * | 2018-12-27 | 2019-04-26 | 佛山市顺德区深研机电设备有限公司 | A kind of environmental protection noise reducing type interpolation axis servo motor |
| CN114345677A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Valve sleeve type pneumatic vibrator |
| CN115254602A (en) * | 2022-08-02 | 2022-11-01 | 中粮山萃花生制品(威海)有限公司 | Nut screening device and application method thereof |
| CN115254602B (en) * | 2022-08-02 | 2023-10-10 | 中粮山萃花生制品(威海)有限公司 | Nut screening device and application method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20130324 |