CN204356925U - A kind of indoor substation low frequency absorption denoising device - Google Patents
A kind of indoor substation low frequency absorption denoising device Download PDFInfo
- Publication number
- CN204356925U CN204356925U CN201420798331.XU CN201420798331U CN204356925U CN 204356925 U CN204356925 U CN 204356925U CN 201420798331 U CN201420798331 U CN 201420798331U CN 204356925 U CN204356925 U CN 204356925U
- Authority
- CN
- China
- Prior art keywords
- low frequency
- frequency absorption
- reducing plate
- noise reducing
- absorption
- 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
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 60
- 229920000742 Cotton Polymers 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 claims abstract description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005187 foaming Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Abstract
The utility model relates to a kind of indoor substation low frequency absorption denoising device.It comprises low frequency absorption noise reducing plate, and the low frequency perforated acoustic board that this low frequency absorption noise reducing plate is assembled by ecto-entad successively, glass-fiber-fabric, high density alumina silicate absorb sound cotton, damping sheet, closed pore formula low frequency absorption foaming structure, resonance acoustic board, each layer compound formation; Low frequency absorption noise reducing plate integral installation fits on connector, it is assemblied on body of wall by connector, be provided with gap at low frequency absorption noise reducing plate between connector and body of wall installation position, this gap ensures there is rational resonating cativty between low frequency absorption noise reducing plate and body of wall.The utility model is due to the use of different sound absorption coefficient harmony impedance complex structure, the sound sucting band of this structure is wider, particularly greatly improve the sound absorption coefficient of below 500Hz low frequency, apply to the indoor of indoor substation, can reduce the reverberation sound because room noise reflection produces greatly, field measurement reduces room noise and reaches 12dB(A) more than.
Description
Technical field
The utility model relates to industrial circle Noise measarement and field of environment protection, is specifically related to a kind of indoor substation low frequency absorption denoising device.
Background technology
Along with the raising of people's living standard, people get more and more to the demand of electric power, and transformer substation in city is built in a large number at residential neighborhood, and transformer station's noise unavoidably affects the live and work of people.The walls and roofs of indoor substation generally adopts concrete or building block brick, belongs to noise reflection body, at the reverberation sound that indoor formation is strong, causes the increase of noise, and in grievous injury transformer station, the hearing of operating personnel is healthy.Traditional sound absorption construction has good acoustically effective in medium-high frequency, but poor at low-frequency range acoustically effective.And the noise of transformer is higher in medium and low frequency section sound pressure level in transformer station, be just in time positioned at traditional sound absorption material sound absorption short slab place.
Utility model content
Of the present utility model
objectjust be to provide a kind of indoor substation low frequency absorption denoising device, it is for above-mentioned the deficiencies in the prior art, the utility model adopts the MULTILAYER COMPOSITE sound absorption construction of porous absorption material, cavity resonance sound absorption construction, thin plate resonance sound-absorbing material composition, and adds damping sheet in structure.Due to the use of different sound absorption coefficient harmony impedance complex structure, the sound sucting band of this structure is wider, particularly greatly improve the sound absorption coefficient of below 500Hz low frequency, apply to the indoor of indoor substation, can reduce the reverberation sound because room noise reflection produces greatly, field measurement reduces room noise and reaches 12dB(A) more than.
Of the present utility model
technical schemefor: the utility model indoor substation low frequency absorption denoising device comprises low frequency absorption noise reducing plate, the low frequency perforated acoustic board that this low frequency absorption noise reducing plate is assembled by ecto-entad successively, glass-fiber-fabric, high density alumina silicate absorb sound cotton, damping sheet, closed pore formula low frequency absorption foaming structure, resonance acoustic board, each layer compound formation; Low frequency absorption noise reducing plate integral installation fits on connector, it is assemblied on body of wall by connector, be provided with gap at low frequency absorption noise reducing plate between connector and body of wall installation position, this gap ensures there is rational resonating cativty between low frequency absorption noise reducing plate and body of wall.
It is thick that low frequency perforated acoustic board described in the utility model is set to 1-0.8mm; Damping sheet is set to 4-5mm; It is thick that resonance acoustic board is set to 6-10mm; Low frequency absorption noise reducing plate to the gap arranged between connector and body of wall installation position at 50 ± 5mm; It is thick that high density alumina silicate sound absorption cotton is set to 50mm, and it is thick that closed pore formula low frequency absorption foaming structure is set to 50mm.
The utility model
beneficial effectas follows: the utility model adopts the MULTILAYER COMPOSITE sound absorption construction of porous absorption material, cavity resonance sound absorption construction, thin plate resonance sound-absorbing material composition, and adds damping sheet in structure.Due to the use of different sound absorption coefficient harmony impedance complex structure, the sound sucting band of this structure is wider, particularly greatly improve the sound absorption coefficient of below 500Hz low frequency, apply to the indoor of indoor substation, can reduce the reverberation sound because room noise reflection produces greatly, field measurement reduces room noise and reaches 12dB(A) more than.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model embodiment is installed on body of wall.
In accompanying drawing: the thick low frequency perforated acoustic board of 1-0.8mm; 2-glass-fiber-fabric; The sound absorption of 3-high density alumina silicate is cotton; The thick damping sheet of 4-5mm; 5-closed pore formula low frequency absorption foaming structure; The thick resonance acoustic board of 6-10mm; 7-resonating cativty; 8-connector; 9-expansion bolt; 10-body of wall.
Detailed description of the invention
The embodiment of the utility model indoor substation low frequency absorption denoising device as shown in Figure 1: its connector 8 adopts expansion bolt 9 and body of wall 10 to be connected and fixed, for low frequency absorption noise reducing plate provides firm braced structures.Between the thick resonance acoustic board 6 of 10mm and body of wall 10, indwelling 50mm resonating cativty 7 is installed.The thick resonance acoustic board 6 of 10mm is outer installs closed pore formula low frequency absorption foaming structure 5 and high density alumina silicate sound absorption cotton 3.Between closed pore formula low frequency absorption foaming structure 5 and high density alumina silicate sound absorption cotton 3, the thick damping sheet 4 of one deck 5mm is installed.The outermost layer of low frequency absorption noise reducing plate installs the thick low frequency perforated acoustic board 1 of 0.8mm, pastes glass-fiber-fabric 2 in low frequency perforated acoustic board, spills from hole to prevent high-density silicon acid aluminium sound absorption cotton 3.
It is thick that the utility model described low frequency perforated acoustic board when implementing can be set to 1-0.8mm; Damping sheet is set to 4-5mm; It is thick that resonance acoustic board is set to 6-10mm; Low frequency absorption noise reducing plate to the gap arranged between connector and body of wall installation position at 50 ± 5mm mm; It is thick that high density alumina silicate sound absorption cotton is set to 50mm, and it is thick that closed pore formula low frequency absorption foaming structure is set to 50mm.
Claims (2)
1. an indoor substation low frequency absorption denoising device, it is characterized in that: this denoising device comprises low frequency absorption noise reducing plate, the low frequency perforated acoustic board that this low frequency absorption noise reducing plate is assembled by ecto-entad successively, glass-fiber-fabric, high density alumina silicate absorb sound cotton, damping sheet, closed pore formula low frequency absorption foaming structure, resonance acoustic board, each layer compound formation; Low frequency absorption noise reducing plate integral installation fits on connector, it is assemblied on body of wall by connector, be provided with gap at low frequency absorption noise reducing plate between connector and body of wall installation position, this gap ensures there is rational resonating cativty between low frequency absorption noise reducing plate and body of wall.
2. a kind of indoor substation low frequency absorption denoising device according to claim 1, is characterized in that: it is thick that described low frequency perforated acoustic board is set to 1-0.8mm; Damping sheet is set to 4-5mm; It is thick that resonance acoustic board is set to 6-10mm; Low frequency absorption noise reducing plate to the gap arranged between connector and body of wall installation position at 50 ± 5mm; It is thick that high density alumina silicate sound absorption cotton is set to 50mm, and it is thick that closed pore formula low frequency absorption foaming structure is set to 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420798331.XU CN204356925U (en) | 2014-12-17 | 2014-12-17 | A kind of indoor substation low frequency absorption denoising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420798331.XU CN204356925U (en) | 2014-12-17 | 2014-12-17 | A kind of indoor substation low frequency absorption denoising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204356925U true CN204356925U (en) | 2015-05-27 |
Family
ID=53258403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420798331.XU Expired - Fee Related CN204356925U (en) | 2014-12-17 | 2014-12-17 | A kind of indoor substation low frequency absorption denoising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204356925U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429012A (en) * | 2015-11-06 | 2016-03-23 | 国网吉林省电力有限公司电力科学研究院 | Noise reduction device for reducing low-frequency noises of transformer station based on foam aluminium alloy |
| CN106531142A (en) * | 2016-10-20 | 2017-03-22 | 中国电力科学研究院 | Noise-reducing device for transformer substation |
| CN107237414A (en) * | 2017-07-28 | 2017-10-10 | 国网河南省电力公司 | A kind of microporous aluminosilicates fiber sandwich sound-absorbing composite board |
| CN108457393A (en) * | 2017-02-17 | 2018-08-28 | S.I.Pan公司 | Anechoic room sound-absorption structural body and the anechoic room for including anechoic room sound-absorption structural body |
| CN108532791A (en) * | 2018-06-15 | 2018-09-14 | 苏州岸肯电子科技有限公司 | A kind of sound-absorbing wall |
| CN108952051A (en) * | 2018-09-25 | 2018-12-07 | 烟台常春藤建筑节能科技有限公司 | A kind of composite decoration integration denoising device and its installation method |
| CN110588683A (en) * | 2019-08-16 | 2019-12-20 | 哈工大机电工程(嘉善)研究院 | Composite board for low-frequency broadband noise reduction of compartment structure |
-
2014
- 2014-12-17 CN CN201420798331.XU patent/CN204356925U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429012A (en) * | 2015-11-06 | 2016-03-23 | 国网吉林省电力有限公司电力科学研究院 | Noise reduction device for reducing low-frequency noises of transformer station based on foam aluminium alloy |
| CN106531142A (en) * | 2016-10-20 | 2017-03-22 | 中国电力科学研究院 | Noise-reducing device for transformer substation |
| CN108457393A (en) * | 2017-02-17 | 2018-08-28 | S.I.Pan公司 | Anechoic room sound-absorption structural body and the anechoic room for including anechoic room sound-absorption structural body |
| US10510331B2 (en) | 2017-02-17 | 2019-12-17 | S.I.Pan | Sound absorbing structure for anechoic chamber and anechoic chamber including the same |
| CN107237414A (en) * | 2017-07-28 | 2017-10-10 | 国网河南省电力公司 | A kind of microporous aluminosilicates fiber sandwich sound-absorbing composite board |
| CN108532791A (en) * | 2018-06-15 | 2018-09-14 | 苏州岸肯电子科技有限公司 | A kind of sound-absorbing wall |
| CN108952051A (en) * | 2018-09-25 | 2018-12-07 | 烟台常春藤建筑节能科技有限公司 | A kind of composite decoration integration denoising device and its installation method |
| CN110588683A (en) * | 2019-08-16 | 2019-12-20 | 哈工大机电工程(嘉善)研究院 | Composite board for low-frequency broadband noise reduction of compartment structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150527 Termination date: 20161217 |