CN201809451U - Sound-absorbing buffer of crust-breaking cylinder - Google Patents
Sound-absorbing buffer of crust-breaking cylinder Download PDFInfo
- Publication number
- CN201809451U CN201809451U CN2010205682269U CN201020568226U CN201809451U CN 201809451 U CN201809451 U CN 201809451U CN 2010205682269 U CN2010205682269 U CN 2010205682269U CN 201020568226 U CN201020568226 U CN 201020568226U CN 201809451 U CN201809451 U CN 201809451U
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- sound
- pipe
- damping
- breaking cylinder
- crust
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Abstract
The utility model relates to a sound-absorbing buffer of a crust-breaking cylinder. The buffer comprises a gas inlet pipe, a sound-damping pipe and a concentrated exhaust pipe which are sequentially communicated, wherein a plurality of small holes are arranged on the pipe wall of the sound-damping pipe, the periphery of the sound-damping pipe is sleeved with a clamping sleeve which can form a closed space with the sound-damping pipe, the insides of the inner cavities of the clamping sleeve and the sound-damping pipe are respectively provided with a gas scattering plate and a sound-baffling plate which can divide the insides of the clamping sleeve and the sound-damping pipe from one part into two parts, and a plurality of gas holes are arranged on the gas scattering plate. The sound-absorbing buffer of the crust-breaking cylinder has the functional characteristics of large sound-damping quantity, large flow rate and long service life and is convenient to install. Meanwhile, because the sound-damping principles of dispersion, reflection and absorption are adopted and flow control holes with smaller diameter are replaced by the capacity expansion of big holes, the effects of sound elimination and blocking prevention are further reinforced structurally, and an ideal requirement is achieved.
Description
Technical field
The utility model relates to the Aluminum Electrolysis Production equipment technical field, particularly relates to the quiet snubber of a kind of crust breaking cylinder.
Background technology
At potroom, the noise that is sent by the exhaust of crust breaking cylinder has seriously influenced direct labor's physical and mental health considerably beyond the numerical value of " industrial enterprise's noise hygienic standard " that China issued regulation; Because the opening speed of crust breaking cylinder is very fast, surging force is bigger, thereby has shortened the work-ing life of crust breaking cylinder in addition.For this reason, traditional terms of settlement has 2 kinds:
One, adopt the micropore jet sound damper, its existing problems are: 1. the aperture is too little, stops up easily, and has a strong impact on the exhaust backhaul action of crust breaking cylinder; Life-span very short, the trouble of change, this device is eliminated at present.
Two, adopt the simple type hush pipe, its existing problems are: 1. just handle as the simple diffusion of sound, erasure effect is not obvious; 2. mode of connection is a hard link, destroys the tie point of crust breaking cylinder easily.
Simultaneously, for crust breaking cylinder, its exhaust not only will be avoided excessive dry sound, and should allow air-flow discharge smoothly, and bigger difficulty is to prevent that greasy dirt mixing dust from stopping up.For this reason, the noise reduction means of above-mentioned multi-level throttle and micropore jet all should not adopt, and this restriction always is the design difficulty of the quiet snubber of crust breaking cylinder, also are short reasons of quiet snubber life-span of crust breaking cylinder crust breaking cylinder.
Summary of the invention
The purpose of this utility model is to overcome the defective of above-mentioned prior art, and is provided a kind of work-ing life that can effectively improve the crust breaking cylinder, reduces the quiet snubber of crust breaking cylinder of noise.
The technical scheme of being taked is for achieving the above object:
The quiet snubber of a kind of crust breaking cylinder, it is characterized in that: comprise the inlet pipe, hush pipe and the concentrated vapor pipe that are communicated with successively, wherein have several apertures on the tube wall of hush pipe, and the chuck that can form enclosed space with it is housed in its outer race, be respectively arranged with the gas that its inside can be divided into two in the inner chamber of this chuck and hush pipe and break up plate and baffle, described gas is broken up and is had several pores on the plate;
Above-mentioned inlet pipe, hush pipe and concentrated vapor pipe are straight tube, and internal diameter increases successively.
The quiet snubber of crust breaking cylinder of the present utility model is to develop according to anti-, resistance, the compound noise-cancelling theory of aperture, its principle is: the frequency spectrum with jet noise is a foundation, replace with a lot of little spouts if the total area of maintenance spout is constant, will shift to high frequency or ultra-high frequency when the frequency spectrum of air-flow during, jet noise, the audible sound composition in the frequency spectrum is obviously reduced through small holes.The present invention is just according to this principle, the straight tube of an end closure is set, and on tube wall, be drilled with a lot of apertures, make it to be combined into the pipe and the chamber of abrupt interface, just look like to be an acoustic filter, similar with electrical filter, the cell of each band pipe is a mesh of wave filter, Air quality in the pipe is equivalent to inductance and the resistance on the electricity, be called acoustic mass and acoustic resistance, volume of air in the cell is equivalent to the electric capacity on the electricity, is called acoustic compliance, and the cell of each band pipe all has the natural frequency of oneself.When the sound wave that includes various frequency contents enters first short tube, only near the sound wave of some frequency first mesh natural frequency could arrive second short tube mouth by mesh, the sound wave of other frequency then can not pass through mesh. can only in cell, come back reflective, so just can filter the noise of some frequency content, thereby reach the purpose of noise elimination.It is big that the quiet snubber of crust breaking cylinder of the present utility model has a sound deadening capacity, flow is big, long and functional characteristics easy for installation of life-span, simultaneously owing to adopted the noise reduction principle of dispersion, reflection, absorption, wherein replaced the less control discharge orifice of diameter with the macropore dilatation, structurally more strengthen noise reduction and blocking-proof result, reached the ideal requirement.Test shows that the effect of the quiet snubber of crust breaking cylinder of the present invention is very good, under the situation that does not influence the work of crust breaking cylinder, the noise of potroom can be reduced to 90 decibels (near-ends) and 78 decibels (far-end) from 120-130 decibel (near-end).
Description of drawings
Fig. 1 is the structural representation sketch of the quiet snubber of the utility model crust breaking cylinder;
Fig. 2 is that A-A among Fig. 1 is to view.
Embodiment
The quiet snubber of crust breaking cylinder of the present utility model comprises the inlet pipe 1, hush pipe 2 and the concentrated vapor pipe 3 that are communicated with successively, and described inlet pipe 1, hush pipe 2 and concentrated vapor pipe 3 are straight tube, and internal diameter increases successively.Wherein have several apertures 4 on the tube wall of hush pipe 2, the baffle 7 that is provided with in its chamber Yu can breaks it into two, wherein first half is called raising frequency pipe 2-1, and latter half is called filtering organ pipe 2-2.Outer periphery at hush pipe 2 is equipped with the chuck 5 that can form enclosed space with it, be provided with the gas that its inner chamber can be divided into two in this chuck 5 and break up plate 6, wherein be called diffusion storehouse 9, be called filtering organ pipe 10 corresponding to filtering organ pipe 2-2 corresponding to the chamber of raising frequency pipe 2-1.Above-mentioned gas is broken up and is had several pores 8 on the plate 6.
Claims (2)
1. quiet snubber of crust breaking cylinder, it is characterized in that: comprise the inlet pipe (1), hush pipe (2) and the concentrated vapor pipe (3) that are communicated with successively, wherein have several apertures (4) on the tube wall of hush pipe (2), and the chuck (5) that can form enclosed space with it is housed in its outer race, be respectively arranged with the gas that its inside can be divided into two in the inner chamber of this chuck (5) and hush pipe (2) and break up plate (6) and baffle (7), described gas is broken up and is had several pores (8) on the plate (6).
2. according to the quiet snubber of the described crust breaking cylinder of claim 1, it is characterized in that: above-mentioned inlet pipe (1), hush pipe (2) and concentrated vapor pipe (3) are straight tube, and internal diameter increases successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205682269U CN201809451U (en) | 2010-10-20 | 2010-10-20 | Sound-absorbing buffer of crust-breaking cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205682269U CN201809451U (en) | 2010-10-20 | 2010-10-20 | Sound-absorbing buffer of crust-breaking cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809451U true CN201809451U (en) | 2011-04-27 |
Family
ID=43892391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205682269U Expired - Fee Related CN201809451U (en) | 2010-10-20 | 2010-10-20 | Sound-absorbing buffer of crust-breaking cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201809451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758221A (en) * | 2011-04-29 | 2012-10-31 | 沈阳铝镁设计研究院有限公司 | Energy-saving silencing device of crust breaking cylinder for aluminum electrolytic cells |
-
2010
- 2010-10-20 CN CN2010205682269U patent/CN201809451U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758221A (en) * | 2011-04-29 | 2012-10-31 | 沈阳铝镁设计研究院有限公司 | Energy-saving silencing device of crust breaking cylinder for aluminum electrolytic cells |
| CN102758221B (en) * | 2011-04-29 | 2015-06-03 | 沈阳铝镁设计研究院有限公司 | Energy-saving silencing device of crust breaking cylinder for aluminum electrolytic cells |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110427 Termination date: 20121020 |