CN2668863Y - Gas or steam dispersion special-efficient silencer - Google Patents
Gas or steam dispersion special-efficient silencer Download PDFInfo
- Publication number
- CN2668863Y CN2668863Y CNU032357265U CN03235726U CN2668863Y CN 2668863 Y CN2668863 Y CN 2668863Y CN U032357265 U CNU032357265 U CN U032357265U CN 03235726 U CN03235726 U CN 03235726U CN 2668863 Y CN2668863 Y CN 2668863Y
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- China
- Prior art keywords
- gas
- cylindrical shell
- cylinder body
- plate
- wave
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- 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.)
- Expired - Lifetime
Links
- 230000003584 silencer Effects 0.000 title abstract description 7
- 239000006185 dispersion Substances 0.000 title abstract 5
- 230000030279 gene silencing Effects 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 20
- 230000008030 elimination Effects 0.000 claims description 11
- 238000003379 elimination reaction Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 239000011148 porous material Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract 4
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 230000009102 absorption Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model provides a gas or steam dispersion special-efficient silencer, comprising a cylinder body, a gas inlet and a gas outlet which are positioned at both ends of the cylinder body, and a silencing belt which is arranged in the cylinder body and is provided with a front resonant cavity and a rear resonant cavity. The cylinder body is provided with at least first stage throttle plates, the inner portion of the cylinder body of one side of the gas outlet is provided with micropore plates, and a hollow cavity between the micropore plates and the inner wall of the cylinder body is provided with a cold mixing pore which is communicated with atmosphere and is provided with a shock absorption pipe which is connected the gas inlet. The shock absorption pipe is provided with axially a wave sucking pipe whose middle is provided with a vibration insulation layer, and two layers of shock absorption cylinders which are formed by annular micropore plates are sheathed between the wave sucking pipe and the shock absorption pipe. The cylindrical external wall of the second stage throttle plate of the cylinder body is provided with a sound wave dispersion plate, and the gas current inlet end of the second stage throttle plate is provided with a plurality of moisture eliminating dust collection pipes. Thegas or steam dispersion special-efficient silencer can reduce regenerated noise caused by that the gas or steam discharge pipeline is provided with the silencer, not only can improve silencing values, but also can reduce loudness values. The gas or steam dispersion special-efficient silencer also increases the moisture eliminating and dust collection functions, keeps the cleanness of the pipeline, and prolongs the lifespan of the pipe system and the silencer.
Description
Technical field
The utility model relates to a kind of silencing apparatus, especially is applicable to the gas or the diffusing special efficacy silencing apparatus of gas row of industries such as oil, chemical industry, metallurgy, electric power.
Background technique
On June 13rd, 1993, the patent No. of application was the silencing apparatus of ZL93215463.8, was the silencing apparatus that I was used to administer exhaust sound originally.It comprises cylindrical shell, is positioned at the inlet and outlet mouth at cylindrical shell two ends, and has the one-level Rectifier plate in the cylindrical shell at least, and its unique distinction is to be provided with in the cylindrical shell band of eliminating the noise, and resonant cavity and back resonant cavity before this band tool of eliminating the noise can in the form of a ring or present helical and be located in the cylindrical shell.Its another characteristics are near being provided with individual layer or double-deck microwell plate in the cylindrical shell of relief opening one side, and microwell plate communicates with atmosphere through mixing cold hole with cavity between the cylinder inboard wall, have formed an injection and have mixed cold layer.
This class silencing apparatus is to be beneficial to the throttling decompression principle, and the size of promptly pressing air flow rate suitably successively enlarges passage section, and when making pressurized gas through Rectifier plate, pressure is successively reduced.Because the high power that exhaust sound sound output and pressure fall is proportional, so this pressure successively diminishes, the emptying mode that volume successively enlarges can obtain the noise elimination effect.Simultaneously its utilize eliminate the noise with on the structure of former and later two resonant cavities absorb a part of sound wave.The injection that also is beneficial to the cylindrical shell upper end is mixed cold layer, causes cylindrical shell negative pressure to occur on every side, and cool air mixes, and has reduced the kinetic energy of hot air flow molecule, causes noise to descend.Show that through applying the noise elimination value can reach 25---35dB (A).Its deficiency is to require to reduce more than the 40dB (A) for strong noise (as aircraft noise), and it just seems difficult; Lack humidity discharging, dust discharge function again.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of gas or gas row is provided diffusing special efficacy silencing apparatus, can reduce the regenerated noise that gas or gas discharge conduit produce because of fixing a silencer, it can improve the noise elimination value, can reduce loudness value again.Increase the function of humidity discharging, dust discharge.
The technological scheme that realizes the utility model purpose is: a kind of gas or the diffusing special efficacy silencing apparatus of gas row, comprise cylindrical shell, be positioned at the suction port and the relief opening at cylindrical shell two ends, the noise elimination band that has preceding resonant cavity and back resonant cavity in the cylindrical shell, at least has the one-level Rectifier plate in the cylindrical shell, and the inner barrel in relief opening one side is provided with microwell plate, microwell plate has the cold hole of mixing that communicates with atmosphere with cavity between the cylinder inboard wall, be provided with the vibration damping pipe that is connected with suction port, the wave-absorbing tube that vibration insulation is arranged in the middle of the vibration damping inner axial tube is provided with, the damper cylinder that the two-layer ring-type microwell plate of suit constitutes between wave-absorbing tube and the vibration damping pipe, on the cylindrical outer wall of the second level Rectifier plate sound scattering plate is housed in the cylindrical shell, the air flow inlet end of second level Rectifier plate is set up several humidity discharging dust removing tubes.
And the band of eliminating the noise is the star ring-type or helical is located in the cylindrical shell.
Muffler body of the present utility model partly and injection is mixed cold part and former patent ZL93215463.8 is basic identical.Different is to be provided with the humidity discharging dust removing tube in the muffler body.And the aperture on the afterbody Rectifier plate and hole count are set by the needs of exhaust pressure, air displacement, loudness value in the tube.
Owing to be provided with the band of eliminating the noise in the cylindrical shell of muffler body part, it can be according to noise frequency characteristic, the corresponding size of two groups of resonant cavities before and after selecting.Press the resonant silencing principle, the acoustic wave segment in the noise elimination main body can be absorbed.Be provided with awave sound scattering plate on some suitable barrels in the cylindrical shell, make and cause the sound wave that considerable phase place is identical with frequency direction opposite, and cancel each other.
The tail end of silencing apparatus is that injection is mixed cold part, open several around on cylindrical shell top and mixed cold hole and individual layer (or double-deck) microwell plate structure, still kept former patent injection to mix cold layer effect, but it should be noted that new silencing apparatus injection mixes the microwell plate sound absorption structure in the cold part cylindrical shell and pass by different: the degree of depth in the size of micropore, micropore chamber, the thickness of microwell plate, the diameter of mixing cold layer height, microwell plate are strictly to decide by the mathematical relationship of exhaust flow velocity, flow, frequency spectrum.
Because having improved original throttling step-down, spiral sound absorption band, injection, the utility model mixes cold three kinds of structures and newly-increased vibration damping pipe, sound scattering plate, humidity discharging dust removing tube, its performance is just more complete, noise noise elimination value can reach 40-60 decibel (objective amount), and loudness (subjective amount) can reduce more than 90%.Both dedustings, humidity discharging again, vibration three values of piping have kept duct cleaning with decline 20-50%, prolong piping and silencing apparatus life-span, and budget can reach more than 20 years.
Description of drawings
Fig. 1 is the utility model structure sectional view;
Fig. 2 is that the utility model is not with vibration damping tubular portion sectional view;
Fig. 3 is the cross-sectional view of vibration damping pipe;
Fig. 4 is a humidity discharging dust removing tube sectional view;
Fig. 5 is the cross-sectional view of eliminating the noise and being with;
Fig. 6 eliminates the noise to be with to be the partial view that launches shape;
Fig. 7 is with noise elimination band bending shown in Figure 6 circlewise or spiral helicine partial view.
Embodiment
With reference to Fig. 1, the utility model comprises that vibration damping tubular portion I, muffler body part II, injection mix cold part III.
Vibration damping tubular portion I: comprise vibration damping pipe 5 shown in Figure 3 and two end flange [1a, 1b] (one end flange 1a links to each other with the flange of gas or gas discharge conduit), gas or gas are pressed airflow direction, from the pipeline that connects, come out, simultaneously also with the vibration of gas or gas discharge conduit, import in the vibration damping pipe 5, the vibration insulation 9 in the middle of wave-absorbing tube 2 that the longitudinal wave of its mechanical vibration axially is provided with (the wave-absorbing tube central support shaft 31 and the wave-absorbing tube cross position shelf 32 that axially are provided with by wave-absorbing tube 2 centers guarantee) and the wave-absorbing tube 2 absorbs or part is eliminated.And the reflected wave in pipe is by the plane damping pad 3 at two ends and 6 absorptions of cartridge type damping pad or an elimination part, the damper cylinder [7,8] that the Lateral wave of mechanical vibration (having another name called radial wave) is then constituted by two-layer ring-type microwell plate absorbs or eliminates a part of, the vibration wave of remaining air-flow and sound wave are to the shell of vibration damping pipe 5, the locating support 4 of damper cylinder [7,8], and the excitation force of two end flange [1a, 1b] etc. also weakens thereupon, and its vibration three values (vibration velocity, acceleration, amplitude) can reduce.Thereby vibration damping tubular portion I has also suppressed the generation of the regenerated noise of muffler body part II except eliminating mechanical vibration and pneumatic noise.
Gripping vibration isolation sealing gasket 27 in the middle of the flange 1c of the flange 1b of vibration damping pipe outlet end and muffler body part II entrance point, it is made by high temperature resistant, corrosion resistant elastomeric material.When gas or gas process vibration isolation sealing gasket 27, just can have no to enter muffler body part II with omitting.
Muffler body part II: comprise cylindrical shell [10a, 10b], be positioned at the flange 1c of cylindrical shell 10a suction port end.The heliconid noise elimination can be installed in the cylindrical shell 10a be with 11.At least has the one-level Rectifier plate in the cylindrical shell 10b.Specifically should establish what grade throttlings, should decide with the pressure of the utility model inlet.Fig. 1 has selected the serially connected buck configuration of level Four, and each Rectifier plate is called first order Rectifier plate 12, second level Rectifier plate 13, third level Rectifier plate 14, fourth stage Rectifier plate 15.The hole 16 area sums of fourth stage Rectifier plate 15 are divided by the hole 16 area sums of third level Rectifier plate, and the multiple of gained is X.When medium is air, X 〉=1.894, when medium is steam, X 〉=1.832.All the other throttling plate hole 16 area sums at different levels are analogized to previous stage successively.
Taken at second level Rectifier plate 13 on the cylindrical outer wall in hole 16 sound scattering plate 17 has been housed.Sound wave passes on this plate, produces scattering, and frequency is identical and sound wave that direction is opposite offsets voluntarily, to reach the purpose with sound gram sound.
Referring to Fig. 4, set up several humidity discharging dust removing tubes 18 at the air flow inlet end of second level Rectifier plate 13.The quantity of pipe and pore size are decided by stream pressure, flow.
With reference to Fig. 5-Fig. 7, noise elimination is with 11 (to be 11a before first order Rectifier plate 12, being 11b before third level Rectifier plate 14, was 11c before fourth stage Rectifier plate 15) be a kind of sound absorption structure of patent of invention (ZL93104885.0) of the applicant, have preceding resonant cavity 19 and back resonant cavity 20.Have between two groups of resonant cavities and make the two aperture that is connected 21.Resonant cavity [19,20] also is respectively equipped with and makes its aperture that communicates with atmosphere [22,23] simultaneously.Preceding resonant cavity 19 profiles preferably are wedge 30 shapes, and this is with favourable looped-shaped bending or helical.If the sound source noise is less, between third and fourth grade Rectifier plate [14,15], also can not establish the band 11c that eliminates the noise.Making the material of eliminating the noise with 11 can be materials such as PVC, teflon.When temperature is high, also can adopt metal.
Injection is mixed cold part III: comprise the big flange 24 that the flange 1d with muffler body part II is connected, be provided with microwell plate 25 near in the cylindrical shell 10c of relief opening 29 1 sides, the thickness of slab of microwell plate 25, micropore quantity, micro-pore diameter and punching rate are selected according to the sound source noise spectrum.If higher, be preferably in and 6-16 (circumferentially) is set on the cylindrical shell 10c mixes cold hole 26 through the temperature temperature that silencing apparatus is discharged.Being microwell plate 25 communicates with atmosphere through mixing cold hole 26 with cavity 28 between the cylindrical shell 10c inwall.This injection is mixed cold mode can further improve acoustic attenuation performance.Its principle is: by the formed negative pressuren zone of process silencing apparatus air-flow, extraneous cool air is entered from mixing cold hole 26, and the cavity between microwell plate 25 and cylindrical shell 10c 28 imports in the high temperature gas flow, promptly form intermediate heat, cold state all around, and this temperature gradient can form sound velocity gradient, makes sound wave in the air to the bending of silencing apparatus perisporium.Owing to the sound absorption structure that is provided with microwell plate 25 at perisporium, thereby just with acoustic wave energy absorption.
When exhaust sound is very high, when requiring noise reduction to reach the 30-60 decibel, then adopt the silencing apparatus of band vibration damping pipe 5, as shown in Figure 1.When exhaust sound than higher, when requiring noise reduction below 30 decibels, then adopt not silencing apparatus, as shown in Figure 2 with vibration damping pipe 5.
Claims (2)
1. gas or the gas row special efficacy silencing apparatus that looses, comprise cylindrical shell, be positioned at the suction port and the relief opening at cylindrical shell two ends, the noise elimination band that has preceding resonant cavity and back resonant cavity in the cylindrical shell, at least has the one-level Rectifier plate in the cylindrical shell, and the inner barrel in relief opening one side is provided with microwell plate, microwell plate has the cold hole of mixing that communicates with atmosphere with cavity between the cylinder inboard wall, it is characterized in that: be provided with the vibration damping pipe that is connected with suction port, the wave-absorbing tube that vibration insulation is arranged in the middle of the vibration damping inner axial tube is provided with, the damper cylinder that the two-layer ring-type microwell plate of suit constitutes between wave-absorbing tube and the vibration damping pipe, on the cylindrical outer wall of the second level Rectifier plate sound scattering plate is housed in the cylindrical shell, the air flow inlet end of second level Rectifier plate is set up several humidity discharging dust removing tubes.
2. silencing apparatus according to claim 1 is characterized in that: the band of eliminating the noise is the star ring-type or helical is located in the cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032357265U CN2668863Y (en) | 2003-03-07 | 2003-03-07 | Gas or steam dispersion special-efficient silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032357265U CN2668863Y (en) | 2003-03-07 | 2003-03-07 | Gas or steam dispersion special-efficient silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2668863Y true CN2668863Y (en) | 2005-01-05 |
Family
ID=34438256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032357265U Expired - Lifetime CN2668863Y (en) | 2003-03-07 | 2003-03-07 | Gas or steam dispersion special-efficient silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2668863Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745719A (en) * | 2013-12-17 | 2014-04-23 | 抚顺博宇噪声控制技术开发有限公司 | Resistance-resonance large-section silencer |
| CN105139845A (en) * | 2015-07-20 | 2015-12-09 | 合肥科启环保科技有限公司 | Noise adsorption device with damping function |
| CN106409276A (en) * | 2016-10-08 | 2017-02-15 | 常州大学 | Helium gas sound insulation board |
| CN106448647A (en) * | 2016-10-21 | 2017-02-22 | 武汉市发源发明推广有限公司 | Steam or gas special effect silencer |
| CN107726069A (en) * | 2017-09-25 | 2018-02-23 | 浙江雷士灯具有限公司 | Noise cancelling type LED and its assembly method |
-
2003
- 2003-03-07 CN CNU032357265U patent/CN2668863Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745719A (en) * | 2013-12-17 | 2014-04-23 | 抚顺博宇噪声控制技术开发有限公司 | Resistance-resonance large-section silencer |
| CN105139845A (en) * | 2015-07-20 | 2015-12-09 | 合肥科启环保科技有限公司 | Noise adsorption device with damping function |
| CN106409276A (en) * | 2016-10-08 | 2017-02-15 | 常州大学 | Helium gas sound insulation board |
| CN106448647A (en) * | 2016-10-21 | 2017-02-22 | 武汉市发源发明推广有限公司 | Steam or gas special effect silencer |
| CN107726069A (en) * | 2017-09-25 | 2018-02-23 | 浙江雷士灯具有限公司 | Noise cancelling type LED and its assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN FAYUAN INVENTION SPREADING CO., LTD. Free format text: FORMER OWNER: WANG FAYUAN Effective date: 20101028 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430063 NO.4-13, UNIT 79, BUILDING 28, CHAILINTOU EAST RESIDENTIAL QUATER, WUCHANG DISTRICT, WUHAN CITY, HUBEI PROVINCE TO: 430074 FIELD 7, GUANDONG SCIENCE AND TECHNOLOGY INDUSTRY PARK, DONGHU DEVELOPMENT AREA, WUHAN CITY, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101028 Address after: 430074, No. seven block, Kanto science and Technology Industrial Zone, East Lake Development Zone, Wuhan, Hubei Patentee after: Wuhan Fayuan Invention Spreading Co., Ltd. Address before: 430063, 79, 4, 13, Wuhan, Hubei Province, Wuchang Province, 28 heads of firewood forest district Patentee before: Wang Fayuan |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Fayuan Document name: Notification of Passing Examination on Formalities |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130307 Granted publication date: 20050105 |