CN207282294U - The noise reduction isolation cover of converter power transformer - Google Patents
The noise reduction isolation cover of converter power transformer Download PDFInfo
- Publication number
- CN207282294U CN207282294U CN201721296934.XU CN201721296934U CN207282294U CN 207282294 U CN207282294 U CN 207282294U CN 201721296934 U CN201721296934 U CN 201721296934U CN 207282294 U CN207282294 U CN 207282294U
- Authority
- CN
- China
- Prior art keywords
- sound
- noise reduction
- isolation cover
- sound insulation
- power transformer
- 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.)
- Expired - Fee Related
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 23
- 230000009467 reduction Effects 0.000 title claims abstract description 23
- 238000009413 insulation Methods 0.000 claims abstract description 33
- 239000011229 interlayer Substances 0.000 claims abstract description 17
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000011358 absorbing material Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000000644 propagated effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010003084 Areflexia Diseases 0.000 description 1
- 239000012814 acoustic material Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Building Environments (AREA)
Abstract
The noise reduction isolation cover of converter power transformer, noise reduction isolation cover includes top plate (6) and foreboard (7), installation sound insulation acoustic board, the sound insulation acoustic board are made of the sound absorption structure on top layer, the sound insulating structure at the back side and cavity interlayer (2) therebetween and skeleton at least on the top plate (6) and foreboard (7) of noise reduction isolation cover.In the upper using sound insulation acoustic board of isolation cover, sound insulation acoustic board has the minimally invasive hole of cavity interlayer is hardened to close sound absorption composite construction.Indoor design has skeleton, has self-supporting structure, the intensity of reinforcing plate；It is simple in structure, be easily installed.It is reusable without on-site cutting；It can not have to all dismountings, reduce workload during maintenance.
Description
Technical field
The structure improved technology of transformer equipment isolation auxiliary noise reduction protection closure assembly is the utility model is related to, is especially changed
The noise reduction isolation cover of convertor transformer.
Background technology
There are two kinds currently for effective noise reduction measure that the noise of converter power transformer is taken, one kind is in converter power transformer
Preceding to set large-scale ventilating noise silencer, another kind is " BOX-IN " noise reduction technology.Wherein, " BOX-IN " noise reduction technology is i.e. by changing
The fire walls of convertor transformer both sides and valve Room wall carry out transformer body closed sound insulation processing, similar installation sound insulation part, every
The noise-reduction method of acoustic shell.Sound insulating material with top before it uses rock wool coloured silk steel core plate, installs and inhales in " BOX-IN " inner wall
Sound body." BOX-IN " sets ventilation heat abstractor to be used to reduce internal problem before service personnel enters work.But " BOX-IN " skill
The drop sound effective value of art is still problematic：Sound insulation is absolute construction with sound absorption, makes complicated, constructional difficulties；The rock wool coloured silk steel of sound insulation
Intensity decreases after battenboard on-site cutting, it is fragile；During transformer repair and replacement, " BOX-IN " need to be removed all, heavy workload,
And the sound insulationg board pulled down needs to change and repeat usage is low.
Utility model content
The purpose of this utility model is to provide the noise reduction isolation cover of converter power transformer, overcomes prior art defect.
The purpose of this utility model will be realized by following technical measures：Noise reduction isolation cover includes top plate and foreboard, extremely
Few installation sound insulation acoustic board on the top plate and foreboard of noise reduction isolation cover, sound absorption structure of the sound insulation acoustic board by top layer, the back side
Sound insulating structure and cavity interlayer therebetween and skeleton form.
Especially, the sound absorption structure is made of the microperforated panel on top layer and the sound-absorbing material on the inside of it, in micropunch
There is penetrating micropore, sound-absorbing material has microcellular structure between the interior outer surface of plate.
Especially, sound insulating structure is sound insulation backboard, and cavity interlayer is sealing structure, and sound insulation backboard forms multiple with cavity interlayer
Close acoustic isolater.
Especially, skeleton is metal mesh.
Especially, cavity interlayer thickness is more than the 1/2 of sound insulation sound absorption plate thickness.
Especially, sound insulating structure structural strength is more than microperforated panel, and the structural strength of microperforated panel 5 is more than skeleton.
The advantages of the utility model and effect：Upper in isolation cover has cavity using sound insulation acoustic board, sound insulation acoustic board
The minimally invasive hole of interlayer is hardened to close sound absorption composite construction.Indoor design has skeleton, has self-supporting structure, the intensity of reinforcing plate；Knot
Structure is simple, is easily installed.It is reusable without on-site cutting；It can not have to all dismountings, reduce workload during maintenance.
Brief description of the drawings
Fig. 1 is 1 structure diagram of the utility model embodiment.
Fig. 2 is the acoustic board structure diagram that insulates against sound in the utility model embodiment 1.
Reference numeral includes：
Insulate against sound backboard 1, cavity interlayer 2, metal mesh 3, sound-absorbing material 4, microperforated panel 5, top plate 6, foreboard 7.
Embodiment
The utility model principle is that sound is a kind of wavy energy, it is necessary to which medium could be propagated.Sound is in same Jie
When being propagated in matter, Media density is bigger, and spread speed is faster.For example the spread speed in normal temperature air is about 340 meter per seconds,
Spread speed in rail is about 5200 meter per seconds.Another propagate of sound is exactly across Medium Propagation.I.e. from a kind of medium,
Enter another medium through the critical contact face of two media, at this time, the transmission essence of acoustic energy is the transmission of Oscillation Amplitude.Across
During Medium Propagation, the density difference of two media is bigger, and the loss of acoustic energy is bigger.And in practical application, air is mankind's normality
Lower activity space, bigger material is then differed with atmospheric density and is generally the very high material of density, you can is considered as acoustic material.
Density is higher, and soundproof effect is better.Plate made of such material, is known as sound panel.
The sound of the not all frequency of sound panel can obstruct, and object has natural reonant frequency, close to object resonance
The sound of frequency, the soundproof effect of sound panel significantly reduce.Sound panel has the difference every air-borne sound and chatter.Air-borne sound sound insulation
Plate, that is, what is obstructed is the plate for the sound propagated in atmosphere.What chatter sound panel obstructed is whole in such as armored concrete
The plate and system for the sound propagated in body formula house rigid member.
General object all has a soundproof effect, but mean transmission loss, in infinitely great space, the plate more than 30dB
Material is just referred to as sound panel.Sound panel is generally high density material.Sound panel is a kind of plate for acting on soundproof effect.There is building
Thing sound insulation is classified with structures sound insulation.The sound of the not all frequency of sound panel can obstruct, and object has natural resonance frequency
Rate, close to the sound of object resonance frequency, the soundproof effect of sound panel significantly reduces.Sound panel has every air-borne sound and chatter
Difference.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1：As shown in figure 1 and 2, noise reduction isolation cover includes top plate 6 and foreboard 7, at least in noise reduction isolation cover
On top plate 6 and foreboard 7 installation sound insulation acoustic board, the sound insulation acoustic board by the sound absorption structure on top layer, the sound insulating structure at the back side and
Cavity interlayer 2 and skeleton therebetween is formed.
In foregoing, the sound absorption structure is made of the microperforated panel 5 on top layer and the sound-absorbing material 4 on the inside of it, is worn micro-
There is penetrating micropore, sound-absorbing material 4 has microcellular structure between the interior outer surface of orifice plate 5.
In foregoing, sound insulating structure is sound insulation backboard 1, and cavity interlayer 2 is sealing structure, sound insulation backboard 1 and 2 structure of cavity interlayer
Into compound acoustic isolater.
In foregoing, skeleton is metal mesh 3.
In foregoing, 2 thickness of cavity interlayer is more than the 1/2 of sound insulation sound absorption plate thickness.
In foregoing, sound insulating structure structural strength is more than microperforated panel 5, and the structural strength of microperforated panel 5 is more than skeleton.
In the present embodiment, sound-absorbing material has to be matched with the acoustic characteristic impedance of the sound bearing medium of surrounding, makes acoustic energy areflexia
Ground enters sound-absorbing material, and is absorbed the incident acoustic energy overwhelming majority.Sound-absorbing material borrows the porosity of itself, membrane action or common
Bestir oneself with and to one of material of the incident acoustic energy with absorption, the element of ultrasonography equipment.
In the utility model, at least used on the foreboard 7 and top plate 6 of isolation cover with sound insulation, absorb sound composite construction
Insulate against sound acoustic board, and sound insulation acoustic board uses the minimally invasive hole with cavity interlayer is hardened to close sound absorption composite construction.In addition, sound insulation sound absorption
Plate uses custom fabricated, reusable without on-site cutting；Partly sound insulation acoustic board can not have to dismounting, reduce when overhauling
Workload.Sound insulation acoustic board uses self-supporting structure, and indoor design has skeleton, the intensity of reinforcing plate；It is simple in structure, easy to pacifying
Dress.
Claims (6)
1. the noise reduction isolation cover of converter power transformer, it is characterised in that noise reduction isolation cover includes top plate (6) and foreboard (7), at least exists
On the top plate (6) and foreboard (7) of noise reduction isolation cover installation sound insulation acoustic board, the sound insulation acoustic board by top layer sound absorption structure, the back of the body
The sound insulating structure in face and cavity interlayer (2) therebetween and skeleton are formed.
2. the noise reduction isolation cover of converter power transformer as claimed in claim 1, it is characterised in that the sound absorption structure is by top layer
Microperforated panel (5) and the sound-absorbing material (4) on the inside of it are formed, and are had between the interior outer surface of microperforated panel (5) penetrating
Micropore, sound-absorbing material (4) have microcellular structure.
3. the noise reduction isolation cover of converter power transformer as claimed in claim 1, it is characterised in that sound insulating structure is sound insulation backboard
(1), cavity interlayer (2) is sealing structure, and sound insulation backboard (1) forms compound acoustic isolater with cavity interlayer (2).
4. the noise reduction isolation cover of converter power transformer as claimed in claim 1, it is characterised in that skeleton is metal mesh (3).
5. the noise reduction isolation cover of converter power transformer as claimed in claim 1, it is characterised in that cavity interlayer (2) thickness is more than
The 1/2 of sound insulation sound absorption plate thickness.
6. the noise reduction isolation cover of converter power transformer as claimed in claim 1, it is characterised in that sound insulating structure structural strength is more than
Microperforated panel (5), the structural strength of microperforated panel (5) are more than skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721296934.XU CN207282294U (en) | 2017-10-10 | 2017-10-10 | The noise reduction isolation cover of converter power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721296934.XU CN207282294U (en) | 2017-10-10 | 2017-10-10 | The noise reduction isolation cover of converter power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207282294U true CN207282294U (en) | 2018-04-27 |
Family
ID=61988836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721296934.XU Expired - Fee Related CN207282294U (en) | 2017-10-10 | 2017-10-10 | The noise reduction isolation cover of converter power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207282294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003784A (en) * | 2018-06-09 | 2018-12-14 | 烟台知兴知识产权咨询服务有限公司 | A kind of vibration isolation mounting device of power transformer |
-
2017
- 2017-10-10 CN CN201721296934.XU patent/CN207282294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003784A (en) * | 2018-06-09 | 2018-12-14 | 烟台知兴知识产权咨询服务有限公司 | A kind of vibration isolation mounting device of power transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 |