CN206157597U - A noise protective screen and shield assembly fall in full frequency channel for transformer substation - Google Patents
A noise protective screen and shield assembly fall in full frequency channel for transformer substation Download PDFInfo
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- CN206157597U CN206157597U CN201620999720.8U CN201620999720U CN206157597U CN 206157597 U CN206157597 U CN 206157597U CN 201620999720 U CN201620999720 U CN 201620999720U CN 206157597 U CN206157597 U CN 206157597U
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- noise reduction
- frequency band
- full frequency
- transformer station
- band noise
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Abstract
The utility model relates to a noise control field especially relates to a noise protective screen and shield assembly fall in full frequency channel for transformer substation. The utility model discloses a super material low frequency noise reduction layer and high frequency noise reduction layer, super material low frequency noise reduction layer set up the front end that falls noise protective screen body in full frequency channel, and high frequency noise reduction layer sets up in super material low frequency noise reduction layer rear end, and super material low frequency noise reduction layer comprises the crystalline grain that a plurality of periodicity were arranged, set up silicon rubber elasticity film between every crystalline grain, and sound incident direction one side of silicon rubber elasticity film is pasted and is had the quality piece. The utility model discloses can set up in near transformer, go up effective full frequency channel noise that reduces from transformer noise propagation path, compare in traditional sound barrier and have advantages such as the acoustical reduction coefficient is big, thickness is little, the quality is light, and effectively compensate traditional sound barrier and be difficult to the not enough of the following low -frequency noise of separation 500Hz.
Description
Technical field
The utility model is related to field of noise control, more particularly to a kind of full frequency band noise reduction barrier for transformer station and
Screening arrangement.
Background technology
Transformer station is important electric power transfer place, and in recent years, with the development of national economy, urban power consumption quickly increases
Plus, down town power load density increase, the transformer station of 110 ~ 220kv or even 500kv all has been enter into inner city, especially
Original some construction ages, transformer station's urbanization phenomenon was more next than also becoming residential neighborhoods successively around transformer station earlier
It is more serious, generate larger contradiction with human settlement around.With the continuous improvement of people's environmental consciousness, transformer station's noise disturbs residents
Complaint event gradually increases, therefore researches and develops the new technique related to transformer station noise reduction and product is particularly urgent.
Transformer station's Main Noise Sources include transformer, Gao Kangqi, cooling blower etc., wherein transformer body noise and its cold
But the noise of system is the topmost noise source of most of transformer stations, and this bulk noise is mainly derived from the magnetostriction of silicon steel sheet
There is the electromagnetic attraction produced because of leakage field between the iron coring vibration for causing and silicon steel sheet seam crossing and lamination, with low frequency wire
Based on spectral noise；The noise of cooling device is mainly derived from the vibration produced when cooling fan or transformer oil pump operation, with the wind
The rotation speed change of fan and oil pump, noise spectrum feature is shown as based on different frequency range noise.Therefore transformer station's main noise frequency
Spectral property is full frequency band distribution, but based on low-frequency noise.
The noise reduction mode of transformer mainly includes from sound source noise reduction and the big class of noise reduction two on propagation path, from sound source
Noise reduction rebuilds loaded down with trivial details, gigantic project for the transformer built up, and feasibility is not high；Noise reduction is main in propagation path
Using equipment such as acoustic hood, sound barriers, but because low-frequency noise has stronger penetrability and diffraction characteristic, traditional sound barrier pair
Low frequency range noise effect on driving birds is not good, to obtain preferable effect, sound barrier thickness is again excessive, makes troubles to transport and construction
Property.Therefore, research and development are a kind of has certain noise reduction to low frequency and is easy to the sound barrier of construction and installation to have important practical significance.
Such as Chinese utility model patent《A kind of indoor substation low frequency absorption denoising device》（Authorization Notice No. CN
204356925 U）Disclosed low frequency absorption denoising device, the device has installation requirement to be wanted, and needs to lean against wall, and can only be to room
Interior low-frequency noise has certain effect.
Utility model content
For the deficiencies in the prior art, the utility model provide a kind of full frequency band noise reduction barrier for transformer station and
Screening arrangement.The utility model includes Meta Materials low frequency noise reduction layer and high frequency noise reduction layer, and Meta Materials low frequency noise reduction layer is arranged at entirely
The front end of frequency range noise reduction barrier body, high frequency noise reduction layer is arranged at Meta Materials low frequency noise reduction layer rear end, Meta Materials low frequency noise reduction
Layer is made up of the lattice of some periodic arrangements, and silicon rubber elastic film, the sound of silicon rubber elastic film are arranged between each lattice
Incident direction side is pasted with mass.Full frequency band noise reduction barrier of the present utility model has good drop to high, medium and low frequency range
Make an uproar function.
The technical solution of the utility model is：A kind of full frequency band noise reduction barrier for transformer station, including Meta Materials are low
Frequency noise reduction layer and high frequency noise reduction layer, it is characterised in that：Described Meta Materials low frequency noise reduction layer is arranged at full frequency band noise reduction barrier
The front end of body, high frequency noise reduction layer is arranged at Meta Materials low frequency noise reduction layer rear end, and described Meta Materials low frequency noise reduction layer is by some
The lattice composition of periodic arrangement, arranges silicon rubber elastic film, the sound incident direction of silicon rubber elastic film between each lattice
Side is pasted with mass.
According to the full frequency band noise reduction barrier for being used for transformer station as above, it is characterised in that：Described lattice is adopted
Lucite, resin or EVA material are made.
According to the full frequency band noise reduction barrier for being used for transformer station as above, it is characterised in that：The thickness of elementary cell
For 1 mm to 2mm, less than 2mm, silicon rubber elastic film thickness is 0.1 mm to 1mm to rib width.
According to the full frequency band noise reduction barrier for being used for transformer station as above, it is characterised in that：Described mass is
Iron plate mass, thickness is less than 2mm, and mass area encloses the 1/2 of film size less than lattice.
According to the full frequency band noise reduction barrier for being used for transformer station as above, it is characterised in that：Described high frequency noise reduction
Layer includes from the inside to the outside porous aluminium sheet, glass acoustical cotton, resistance fire material and sound insulation backboard.
According to the full frequency band noise reduction barrier for being used for transformer station as above, it is characterised in that：Described porous aluminium sheet
More than 50%, thickness is 1 mm to 1.5mm to punching rate；Glass acoustical cotton thickness is 100mm；Resistance fire material selects glass magnesium board,
Thickness is 5mm；Sound insulation backboard is glass-reinforced plastic material, and outer surface is without luminous.
A kind of screening arrangement for transformer station, including installation and the full frequency band noise reduction barrier body of steel structural upright column
Install, it is characterised in that：Described full frequency band noise reduction barrier body is the full frequency band noise reduction for being used for transformer station as above
Sound barrier.
According to the screening arrangement for being used for transformer station as above, it is characterised in that：Described steel structural upright column is H types
Steel, H profile steel surface scribbles successively hot galvanized layer and corrosion-inhibiting coating, and H profile steel column is fixed in ground base, and bottom is solid with screw
Fixed, H profile steel is provided with static electricity earthing device.
According to the screening arrangement for being used for transformer station as above, it is characterised in that：Described full frequency band noise reduction barrier
Body is vertically inserted in the groove of H profile steel column both sides, and Jing securing members fix as one with H profile steel column.
The utility model produce beneficial effect be：Using full frequency band noise reduction barrier by Meta Materials technology and sound absorption skill
Art combines, can effective control transformer station noise transmission path, reduce full frequency band noise, compared to traditional sound barrier have sound insulation
Amount is big, little thickness, light weight the advantages of, and effectively compensate for traditional sound barrier and be difficult to intercept below 500Hz low-frequency noises not
Foot.
Description of the drawings
Fig. 1 is the utility model full frequency band noise reduction barrier schematic diagram；
Fig. 2 is the utility model full frequency band noise reduction barrier vertical section schematic diagram；
Fig. 3 is the structural representation after the connection of the utility model full frequency band noise reduction barrier.
Description of reference numerals, 1- full frequency band noise reduction barrier bodies, 2- Meta Materials low frequency noise reduction layers, 3- lattices, 4- silicon rubbers
Glue elasticity film, 5- masses, 6- steel structural upright columns, 7- high frequency noise reduction layers, 8- porous aluminium sheets, 9- glass acoustical cottons, 10- back-fire reliefs
Material, 11- sound insulation backboards, 12- type steel skeletons, 13- ground bases.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
A kind of full frequency band noise reduction barrier principle of noise reduction for transformer station is as follows：When transformer radiated noise is through full range
Section noise reduction barrier when, first pass around Meta Materials low frequency noise reduction layer 2, in the low frequency band of transformer radiated noise frequency of sound wave with
Resonant frequency of the mass 5 on film 4 matches, and causes the resonance of mass 5, so as to consume low-frequency noise energy, so
Afterwards through high frequency noise reduction layer 7, the reflection of a part of Jing acoustic materials of medium-high frequency section noise sound wave and full frequency band noise reduction cannot be passed through
Sound barrier, the damping action that a part passes through glass acoustical cotton 9, is converted into heat energy and is consumed in communication process, overall
Realize transformer station's radiated noise full frequency band noise reduction.
As depicted in figs. 1 and 2, full frequency band noise reduction barrier body 1 of the present utility model includes Meta Materials low frequency noise reduction layer 2
With high frequency noise reduction layer 7.In order to reduce impact of the phenomenons such as sound reflecting, refraction to Meta Materials performance as far as possible, by Meta Materials low frequency drop
Layer 2 of making an uproar be arranged at the front end of full frequency band noise reduction barrier body 1, i.e. transformer radiated noise first with Meta Materials low frequency noise reduction layer
The contact in 2 regions.Meta Materials low frequency noise reduction layer 2 is made up of the lattice 3 of some periodic arrangements, and between each lattice 3 silicon is provided with
Elastic membrane 4, the sound incident direction side of silicon rubber elastic film 4 is pasted with mass 5.Lattice 3 can adopt organic glass
Glass, resin or EVA material are made, and are to lift noise reduction, and lattice 3 needs the sufficiently small full frequency band noise reducing to guarantee unit area
Barrier has the lattice 3 of enough quantity, and the thickness of elementary cell 3 is 1-2mm in the utility model embodiment, and rib width is less than
2mm, the thickness of silicon rubber elastic film 4 is 0.1-1mm, and mass 5 adopts iron plate mass, shape not to limit, and thickness is less than
2mm, area encloses the 1/2 of film size less than lattice, and the quantity of lattice 3 of periodic arrangement is determined by sound barrier size
It is fixed.High frequency noise reduction layer 7 is arranged at the rear end of Meta Materials low frequency noise reduction layer 2, from the inside to the outside including porous aluminium sheet 8, glass acoustical cotton 9,
Resistance fire material 10 and sound insulation backboard 11, more than 50%, thickness is 1-1.5mm to the wherein punching rate of porous aluminium sheet 8, glass acoustical cotton 9
Thickness is 100mm, and resistance fire material 10 selects glass magnesium board, and thickness is 5mm, and sound insulation backboard 11 is glass-reinforced plastic material, and outer surface is without sending out
Light.
As shown in figure 3, including the peace of steel structural upright column 6 when the full frequency band noise reduction barrier of the utility model embodiment is installed
The installation of dress and full frequency band noise reduction barrier body 1.Steel structural upright column 6 is H profile steel, is the use longevity for extending steel structural upright column 6
Life, on H profile steel surface hot galvanized layer and corrosion-inhibiting coating are scribbled successively, and H profile steel column is fixed in ground base, bottom screw
It is fixed, it is provided with static electricity earthing device.Full frequency band noise reduction barrier body 1 is vertically inserted in the groove of H profile steel column both sides, H
Shaped steel can arrange type steel skeleton 12, full frequency band noise reduction barrier body 1, type steel skeleton 12 with full frequency band noise reduction barrier body 1
Jing securing members fix as one with H profile steel column.According to required sound barrier actual size, many H profile steel columns can be set, per two
Full frequency band noise reduction barrier body 1 is inserted between root post.
The utility model has good anti-acoustic capability to each band noise of transformer station, and technical scheme is mainly characterized in that：
（1）Oise insulation factor is high, especially has good anti-acoustic capability to the low-frequency noise of below 500Hz；
（2）Fabricated construction, modularization size, are easily installed and dismantle；
（3）Using rational size modulus, appearance and size can be flexibly changed according to actual needs；
（4）Outward appearance is neatly coordinated, and has preferable amalgamation with environment；
（5）There is design for performances such as wind resistance, anti-corrosion, insulation, with the longer life phase.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or be converted,
And all these modifications and variations should all belong to the protection domain of the utility model claims.
Claims (9)
1. a kind of full frequency band noise reduction barrier for transformer station, including Meta Materials low frequency noise reduction layer and high frequency noise reduction layer, it is special
Levy and be：Described Meta Materials low frequency noise reduction layer is arranged at the front end of full frequency band noise reduction barrier body, and high frequency noise reduction layer is arranged
In Meta Materials low frequency noise reduction layer rear end, described Meta Materials low frequency noise reduction layer is made up of the lattice of some periodic arrangements, each
Silicon rubber elastic film is set between lattice, and the sound incident direction side of silicon rubber elastic film is pasted with mass.
2. the full frequency band noise reduction barrier for transformer station according to claim 1, it is characterised in that：Described lattice is adopted
Made with lucite, resin or EVA material.
3. the full frequency band noise reduction barrier for transformer station according to claim 1, it is characterised in that：The thickness of elementary cell
Spend for 1 mm to 2mm, rib width is less than 2mm, silicon rubber elastic film thickness is 0.1 mm to 1mm.
4. the full frequency band noise reduction barrier for transformer station according to claim 1, it is characterised in that：Described mass
For iron plate mass, thickness is less than 2mm, and mass area encloses the 1/2 of film size less than lattice.
5. the full frequency band noise reduction barrier for transformer station according to claim 1, it is characterised in that：Described high frequency drop
Layer of making an uproar includes from the inside to the outside porous aluminium sheet, glass acoustical cotton, resistance fire material and sound insulation backboard.
6. the full frequency band noise reduction barrier for transformer station according to claim 5, it is characterised in that：Described porous aluminum
More than 50%, thickness is 1 mm to 1.5mm to plate punching rate；Glass acoustical cotton thickness is 100mm；Resistance fire material selects glass magnesium
Plate, thickness is 5mm；Sound insulation backboard is glass-reinforced plastic material, and outer surface is without luminous.
7. a kind of installation of screening arrangement for transformer station, including steel structural upright column and the peace of full frequency band noise reduction barrier body
Dress, it is characterised in that：Described full frequency band noise reduction barrier body be claim 1 to described in claim 6 for power transformation
The full frequency band noise reduction barrier stood.
8. the screening arrangement for transformer station according to claim 7, it is characterised in that：Described steel structural upright column is H
Shaped steel, H profile steel surface scribbles successively hot galvanized layer and corrosion-inhibiting coating, and H profile steel column is fixed in ground base, bottom screw
Fixed, H profile steel is provided with static electricity earthing device.
9. the screening arrangement for transformer station according to claim 7, it is characterised in that：Described full frequency band noise reduction sound-screen
Barrier body is vertically inserted in the groove of H profile steel column both sides, and Jing securing members fix as one with H profile steel column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620999720.8U CN206157597U (en) | 2016-08-30 | 2016-08-30 | A noise protective screen and shield assembly fall in full frequency channel for transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620999720.8U CN206157597U (en) | 2016-08-30 | 2016-08-30 | A noise protective screen and shield assembly fall in full frequency channel for transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206157597U true CN206157597U (en) | 2017-05-10 |
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ID=58649223
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620999720.8U Expired - Fee Related CN206157597U (en) | 2016-08-30 | 2016-08-30 | A noise protective screen and shield assembly fall in full frequency channel for transformer substation |
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| CN (1) | CN206157597U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192785A (en) * | 2016-08-30 | 2016-12-07 | 国家电网公司 | A kind of full frequency band noise reduction barrier for transformer station and screening arrangement |
| CN109138591A (en) * | 2018-07-19 | 2019-01-04 | 国网山西省电力公司电力科学研究院 | A kind of transformer noise reduction barrier noise at the boundary processing system |
| CN111102423A (en) * | 2019-12-16 | 2020-05-05 | 江苏科技大学 | Compound type silencing barrel based on photonic crystal pipeline |
-
2016
- 2016-08-30 CN CN201620999720.8U patent/CN206157597U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192785A (en) * | 2016-08-30 | 2016-12-07 | 国家电网公司 | A kind of full frequency band noise reduction barrier for transformer station and screening arrangement |
| CN109138591A (en) * | 2018-07-19 | 2019-01-04 | 国网山西省电力公司电力科学研究院 | A kind of transformer noise reduction barrier noise at the boundary processing system |
| CN111102423A (en) * | 2019-12-16 | 2020-05-05 | 江苏科技大学 | Compound type silencing barrel based on photonic crystal pipeline |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 |
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| CF01 | Termination of patent right due to non-payment of annual fee |