CN107084295A - A kind of noise reducing plate at tube bends - Google Patents
A kind of noise reducing plate at tube bends Download PDFInfo
- Publication number
- CN107084295A CN107084295A CN201710443064.2A CN201710443064A CN107084295A CN 107084295 A CN107084295 A CN 107084295A CN 201710443064 A CN201710443064 A CN 201710443064A CN 107084295 A CN107084295 A CN 107084295A
- Authority
- CN
- China
- Prior art keywords
- absorbing layer
- puigging
- sound absorbing
- layer
- sound
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0336—Noise absorbers by means of sound-absorbing materials
Abstract
The invention discloses a kind of noise reducing plate at tube bends, including multiple layer sound suction layer and multiple sound insulation layer, sound absorbing layer and puigging interlaced arrangement, it is the first sound absorbing layer with tube bends contact layer, first sound absorbing layer is made using flexible material, with acoustic resonating chamber, puigging is made using rigid material.Using sound absorbing layer and puigging interlaced arrangement, sound absorbing layer setting acoustic resonating chamber, the cooperation of energy can be dropped with sound insulation by being dropped by sound-absorbing, and the noise of high-decibel is substantially reduced.The first layer contacted with tube bends is sound absorbing layer, first sound absorbing layer is made using flexible material, and acoustic resonating chamber is set on flexible material body, first pass through flexible material and absorb acoustic energy, it is to avoid the lower segment pipe of noise energy flow direction for allowing people to feel bad, the first puigging produces soundproof effect, multiple spectra sound is resonated in acoustic resonating chamber and cut down high audio and bass amount, frequency spectrum is set to be drawn in intermediate frequency, sympathetic response acoustic energy is subsequently transmitted by absorption acoustic energy and reduction high audio amount energy successively, reduces decibel.
Description
Technical field
The present invention relates to a kind of pipeline denoising structure, and in particular to a kind of noise reducing plate at tube bends.
Background technology
The main function of combustion gas yard is the gas transmission and distribution and peak regulation and pressure regulation of conscientious combustion gas.Typically, fire
The position in gas battlefield can not be with user too far, and position in combustion gas yard can not be with user too far, and gas station
The position of voltage regulating station in principle in should be at the center met.In consideration of it, voltage regulating station in combustion gas yard is just easily
It is arranged in industry, business and the hybrid region lived.Meanwhile, with the fast development of urban construction, many former cloths are placed in city
The combustion gas yard at edge has gradually moved to city, and this just makes the noise problem of combustion gas yard increasingly serious.In general, combustion gas
The noise of yard can produce following harm：
In the process of running, noise content is very big for combustion gas yard, and disturb residents outstanding problem.For example, the pressure regulation in combustion gas yard
Stand during pressure regulation and stablizing ductwork pressure, its noise content reaches as high as the life of resident near 110 decibels, severe jamming person
Living, operating efficiency is greatly reduced.
The worker of combustion gas yard is chronically in the working environment of high-decibel, and nervous system of having in the end is affected for a long time, is held
Easily there are the symptoms such as tinnitus, headache and failure of memory, amentia is also can result in what is more, this just easily causes worker's labor
Dynamic protection problem.
In combustion gas yard operation, noise not only easily makes worker produce sense tired out, while vibration caused by noise is also
Threaten the safe operation of combustion gas yard.The long-time continuous shaking that combustion gas yard noise is produced, influences on the equipment in yard
It is the most direct：The resonance of terrace and gas station field device may be caused, be that the area operation environment of whole combustion gas yard is in danger
Among danger；The vibration that noise is produced may cause the pipe welding seam part formation fatigue rupture of combustion gas yard to be gone, and constantly expand；Make
Parts into gas station field device connect loosening, are that the operation of whole yard is buried so as to be formed and add gas leakage point
Lower potential safety hazard.
But the noise control direction of current combustion gas yard is main in terms of the Noise measarement of gas control valve and pressure regulator, right
In the also no real effective method of the processing of duct noise.
The content of the invention
The noise reducing plate of noise at tube bends can be substantially reduced it is an object of the invention to provide a kind of.
This noise reducing plate at tube bends that the present invention is provided, including multiple layer sound suction layer and multiple sound insulation layer, inhale
Sound-absorbing layer and puigging interlaced arrangement, are the first sound absorbing layer with tube bends contact layer, and the first sound absorbing layer is made using flexible material,
With acoustic resonating chamber, puigging is made using rigid material.
The sound absorbing layer has three layers, and respectively the second sound absorbing layer, the 3rd sound absorbing layer and first sound absorbing layer, puigging have
Three layers, respectively the first puigging, the second puigging and the 3rd puigging.
First sound absorbing layer is made using rubber slab, and thickness is at least 11mm, and the second sound absorbing layer uses frothing foam plate
Make, thickness is at least 10mm, the 3rd sound absorbing layer is made using sponge plate, thickness at least 10mm.
First puigging and the second puigging are made using stainless steel plate, wherein the thickness of the first puigging is at least
For 0.5mm, the thickness of the second puigging is less than the thickness of the first puigging, and the thickness of the 3rd puigging is more than the second puigging
Thickness.
Some row's blind holes are evenly equipped with the outside of first sound absorbing layer, each hole site of adjacent row blind hole interlocks, blind hole
Depth is at least 10mm.
Second sound absorbing layer is provided with some exhausting holes, the position of through hole and the position of blind hole on the outside of first sound absorbing layer
Put and be staggeredly arranged.
The blind hole and the shape of through hole are circle.
It is provided with the setting layer made using flannelette on the outside of 3rd sound absorbing layer, the outside of setting layer sets described the
Three puiggings.
Coated length of this plate at tube bends is 8~15 times of pipe diameter.
The present invention use sound absorbing layer and puigging interlaced arrangement, sound absorbing layer set acoustic resonating chamber, by sound-absorbing drop can and
The cooperation of sound insulation drop energy, the noise of high-decibel is substantially reduced.The first layer contacted first with tube bends is sound absorbing layer, first
Sound absorbing layer is made using flexible material, and sets acoustic resonating chamber on flexible material body, is first passed through flexible material and is absorbed acoustic energy,
The noise energy for allowing people to feel bad is avoided to flow to lower segment pipe, the first puigging produces soundproof effect, makes multiple spectra sound in sound
Resonance abatement high audio and bass amount energy, makes frequency spectrum be drawn in intermediate frequency in resonator, sympathetic response acoustic energy by the first puigging again
The second sound absorbing layer is reached, acoustic energy and reduction high audio amount energy are absorbed by the second sound absorbing layer again, then allow by the second puigging
Part acoustic energy empathizes and reduced high audio acoustic energy in the acoustic resonating chamber of the second sound absorbing layer.In order to further absorb sound
Can, the 3rd sound absorbing layer of sponge material is set outside the second puigging.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of one embodiment of the invention.
Embodiment
As shown in figure 1, this noise reducing plate at tube bends disclosed in the present embodiment, the bend pipe for gas pipeline
Locate noise reduction process, including three layers of sound absorbing layer and three layers of puigging, sound absorbing layer and puigging interlaced arrangement.
Three layers of sound absorbing layer are respectively the first sound absorbing layer 1, the second sound absorbing layer 2 and the 3rd sound absorbing layer 3.Three layers of puigging are respectively
First puigging 4, the second puigging 5 and the 3rd puigging 6.Setting layer is provided between 3rd sound absorbing layer 3 and the 3rd puigging
7, the 3rd puigging 6 is arranged at the outside of setting layer 7.
The sound professor of consideration material cost and noise reduction, the applicant and Hunan University adjusts by material several times
It is whole with testing repeatedly, draw to draw a conclusion：The suitable material of first sound absorbing layer 1 is rubber slab, and thickness is at least 11mm, and second inhales
The suitable material of sound-absorbing layer 2 is frothing foam plate, and thickness is at least 10mm, and the suitable material of the 3rd sound absorbing layer is sponge plate, thickness
At least 10mm.The suitable material of puigging is stainless steel plate, and the thickness of the first puigging is at least 0.5mm, the second puigging
Thickness be less than the thickness of the first puigging, the thickness of the 3rd puigging is more than the thickness of the second puigging.Such as the first sound absorbing layer
If being made using 11mm rubber slab, the depth of its outside blind hole is 10mm.
The circular blind hole of some rows is evenly equipped with the outside of first sound absorbing layer, each hole site of adjacent row blind hole interlocks.Second
Sound absorbing layer is provided with the circular through hole of some rows, and the position of through hole and the position of blind hole on the outside of the first sound absorbing layer are staggeredly arranged.
The stainless steel plate of first puigging and the second puigging makes the blind hole and second of the first sound absorbing layer outer circular respectively
Circular through hole formation acoustic resonating chamber on sound absorbing layer.
By testing repeatedly, coated length of this component at tube bends is preferably 8-15 times of pipe diameter, this plate
One piece tube bends are coated after 120 decibels of noise can be down to 60~80 decibels.
It can will be coated according to the installation location of combustion gas yard using polylith plate at tube bends, noise reduction is produced superposition
Effect, is down to noise decibel lower.
The operation principle of the present invention is as follows：Using sound absorbing layer and puigging interlaced arrangement, sound absorbing layer sets acoustic resonating chamber,
The cooperation of energy can be dropped with sound insulation by being dropped by sound-absorbing, and the noise of high-decibel is substantially reduced.First contacted first with tube bends
Layer is sound absorbing layer, and the first sound absorbing layer is made using flexible material, and sets acoustic resonating chamber on flexible material body, is first passed through soft
Property material absorb acoustic energy, it is to avoid allow the lower segment pipe of noise energy flow direction that people feels bad, the first puigging produces soundproof effect, made many
Spectral acoustic resonates in acoustic resonating chamber cuts down high audio and bass amount energy, frequency spectrum is drawn in intermediate frequency, sympathetic response acoustic energy leads to
Cross the first puigging and reach the second sound absorbing layer again, acoustic energy and reduction high audio amount energy are absorbed by the second sound absorbing layer again, then lead to
Crossing the second puigging allows part acoustic energy to empathize and reduce high audio acoustic energy in the acoustic resonating chamber of the second sound absorbing layer.In order to
Acoustic energy is further absorbed, sets sponge plate to be used as the 3rd sound absorbing layer outside the second puigging.
When plate makes, bonded between adjacent layer by adhesive glue, in addition, in order to shape, heavy fleece is laid outside sponge plate
Cloth is used as setting layer, flannelette of the selection thickness between 0.3~0.5mm.In order to attractive in appearance and be easily installed, repaved outside fleece lined goods
If one layer can as the 3rd puigging stainless steel plate, while by the edge of the stainless steel plate by the layers of material body bag on the inside of it
Cover, that is to say the thickness side cladding of whole plate.
When plate is installed, because sound absorbing layer is in Clad pipe bend pipe, elastic deformation can be produced, and rigid stainless steel plate
Edge can stretch out in outside sound-absorbing layer material, so after tube bends are coated, the lateral margin of stainless steel plate is fixed with rivet
.
This certain plate is also applied for the noise reduction process at other tube bends.
Claims (9)
1. a kind of noise reducing plate at tube bends, it is characterised in that：It includes multiple layer sound suction layer and multiple sound insulation layer, sound-absorbing
Layer and puigging interlaced arrangement, are the first sound absorbing layer with tube bends contact layer, and the first sound absorbing layer is made using flexible material, tool
There is acoustic resonating chamber, puigging is made using rigid material.
2. as claimed in claim 1 for the noise reducing plate at tube bends, it is characterised in that：The sound absorbing layer has three layers, point
Not Wei the second sound absorbing layer, the 3rd sound absorbing layer and first sound absorbing layer, puigging has three layers, respectively the first puigging, second
Puigging and the 3rd puigging.
3. as claimed in claim 2 for the noise reducing plate at tube bends, it is characterised in that：First sound absorbing layer uses rubber
Offset plate is made, and thickness is at least 11mm, and the second sound absorbing layer is made using frothing foam plate, and thickness is at least 10mm, the 3rd sound-absorbing
Layer is made using sponge plate, thickness at least 10mm.
4. as claimed in claim 3 for the noise reducing plate at tube bends, it is characterised in that：First puigging and second
Puigging is made using stainless steel plate, wherein the thickness of the first puigging is at least 0.5mm, the thickness of the second puigging is less than
The thickness of first puigging, the thickness of the 3rd puigging is more than the thickness of the second puigging.
5. as claimed in claim 3 for the noise reducing plate at tube bends, it is characterised in that：The outside of first sound absorbing layer
Some row's blind holes are evenly equipped with, each hole site of adjacent row blind hole interlocks, and the depth of blind hole is at least 10mm.
6. as claimed in claim 5 for the noise reducing plate at tube bends, it is characterised in that：Second sound absorbing layer is provided with
Some exhausting holes, the position of through hole and the position of blind hole on the outside of first sound absorbing layer are staggeredly arranged.
7. as claimed in claim 6 for the noise reducing plate at tube bends, it is characterised in that：The shape of the blind hole and through hole
It is circle.
8. as claimed in claim 3 for the noise reducing plate at tube bends, it is characterised in that：The outside of 3rd sound absorbing layer
The setting layer made using flannelette is provided with, the outside of setting layer sets the 3rd puigging.
9. as claimed in claim 1 for the noise reducing plate at tube bends, it is characterised in that：This plate is at tube bends
Coated length is 8~15 times of pipe diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710443064.2A CN107084295A (en) | 2017-06-13 | 2017-06-13 | A kind of noise reducing plate at tube bends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710443064.2A CN107084295A (en) | 2017-06-13 | 2017-06-13 | A kind of noise reducing plate at tube bends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107084295A true CN107084295A (en) | 2017-08-22 |
Family
ID=59606760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710443064.2A Withdrawn CN107084295A (en) | 2017-06-13 | 2017-06-13 | A kind of noise reducing plate at tube bends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107084295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792657A (en) * | 2019-11-20 | 2020-02-14 | 兰州理工大学 | Surface-textured composite hydraulic mute cover plate |
| CN111028820A (en) * | 2019-11-14 | 2020-04-17 | 南京航空航天大学 | Multilayer structure trompil formula phononic crystal board |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111028820A (en) * | 2019-11-14 | 2020-04-17 | 南京航空航天大学 | Multilayer structure trompil formula phononic crystal board |
| CN110792657A (en) * | 2019-11-20 | 2020-02-14 | 兰州理工大学 | Surface-textured composite hydraulic mute cover plate |
| CN110792657B (en) * | 2019-11-20 | 2021-06-04 | 兰州理工大学 | Surface-textured composite hydraulic mute cover plate |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170822 |