CN106531142A - Noise-reducing device for transformer substation - Google Patents
Noise-reducing device for transformer substation Download PDFInfo
- Publication number
- CN106531142A CN106531142A CN201610916468.4A CN201610916468A CN106531142A CN 106531142 A CN106531142 A CN 106531142A CN 201610916468 A CN201610916468 A CN 201610916468A CN 106531142 A CN106531142 A CN 106531142A
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- Prior art keywords
- support
- sound
- noise reduction
- transformer station
- acoustic isolater
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention provides a noise-reducing device for a transformer substation. A composite acoustic device comprises a bracket, a sound-absorbing body connected to the bracket, and a sound-insulating body pivotally connected to the bracket and parallel to the sound-absorbing body. According to the technical scheme of the invention, the low-frequency noise in the noise radiation is blocked and absorbed by the angle-adjustable sound-insulating body. Meanwhile, the low-and-medium-frequency noise is further absorbed by the sound-absorbing body. The sound-absorbing body and the sound-insulating body are used in combination to fully absorb the low-and-medium-frequency noise, so that the noise reduction effect is enhanced.
Description
Technical field
The present invention relates to power system environmental technology field, in particular to a kind of device for transformer station's noise reduction.
Background technology
At present, with the continuous expansion of Urban Scale, the power engineering construction with extra-high voltage as representative is rapidly advanced, power transformation
Standing becomes the core hinge of power Transmission.In the last few years, many transformer stations were quick from environment such as resident living area, school, hospitals
Sensillary area is close, and transformer station's noise pollution has had a strong impact on the work and life of nearby residents.Transformer is used as the main of transformer station
Noise source, reduces the radiated noise of transformer, and it is the most efficient measure that control noise is propagated to surrounding volume.Transformer
The root of vibration and noise is mainly the coil windings vibration that the magnetostriction of electrical steel piece and load current cause, noise frequency
Rate scope is concentrated mainly on middle low-frequency range, so carrying out absorption obstruct frequently with sound barrier to noise.
In general, the conventional denoising device of transformer is mainly reflection-type sound barrier, for example：Steel plate sound barrier, such
Sound barrier be it is simple by reflection sound wave intercepting noise, the approach for intercepting noise is more single, causes noise reduction to be failed to understand
It is aobvious.
The content of the invention
In consideration of it, the present invention proposes a kind of device of transformer station's noise reduction, it is intended to solve the existing denoising device drop of transformer station
Make an uproar the problem of DeGrain.
On one side, the present invention proposes a kind of device of transformer station's noise reduction, and the compound acoustic device includes：Support；Sound absorption
Body, is connected to the support；Acoustic isolater, is rotatably connected at the support and is set up in parallel with the sound absorber.
Further, in the device of above-mentioned transformer station's noise reduction, the acoustic isolater includes:Multiple sound insulation sheets being set up in parallel
Body, and it is each it is described sound insulation body be connected with the holder pivots；Be additionally provided with pull bar on the acoustic isolater, the pull bar with it is each
The sound insulation body is all connected with, for adjusting the angle between each sound insulation body and the support.
Further, in the device of above-mentioned transformer station's noise reduction, each described sound insulation body includes：Damping body and it is packaged in
Housing outside the damping body.
Further, in the device of above-mentioned transformer station's noise reduction, the sound absorber includes：Two pieces of connecting plates being set up in parallel and
At least two blocks side plates being connected between two pieces of connecting plates；Wherein, two pieces of connecting plates and each block of side plate enclose and set
Into a cavity；The connecting plate is set up in parallel with the acoustic isolater.
Further, in the device of above-mentioned transformer station's noise reduction, at least a piece in two pieces of connecting plates offers through hole.
Further, in the device of above-mentioned transformer station's noise reduction, the through hole is uniformly distributed on the connecting plate.
Further, in the device of above-mentioned transformer station's noise reduction, the support includes：First supports body and first base；
Wherein, the lower end of the first support body is connected with the first base, and the first of the acoustic isolater and the sound absorber
End is connected with the described first support body.
Further, in the device of above-mentioned transformer station's noise reduction, the support also includes：Second supports body and the second bottom
Seat；Wherein, the lower end of the second support body is connected with the second base, and the of the acoustic isolater and the sound absorber
Two ends are connected with the described second support body.
Further, in the device of above-mentioned transformer station's noise reduction, the support also includes：Top board and base plate；Wherein, the top
Plate and the base plate are respectively placed in above and below the acoustic isolater and the sound absorber, and respectively with the acoustic isolater and institute
State sound absorber to be connected；The two ends of the top board and the base plate support body and described second to support this respectively with described first
Body phase connects.
Further, in the device of above-mentioned transformer station's noise reduction, the support also includes：Head rod and the second connection
Bar；Wherein, the head rod two ends are connected with the first end of the top board and the base plate respectively；Second connection
The two ends of bar are connected with the second end of the top board and the base plate respectively；The two ends of the acoustic isolater are respectively with described first
Connecting rod and second connecting rod rotate connection.
In the present invention, the Middle and low frequency noise in noise radiation is absorbed by the sound absorber of angle adjustable, passed through
Sound absorber is further intercepted to Middle and low frequency noise, and acoustic isolater and sound absorber are applied in combination, and Middle and low frequency noise is fully inhaled
Receive, enhance noise reduction.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred embodiment, and is not considered as to the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical part.In the accompanying drawings：
Fig. 1 is the structural representation of the device of transformer station's noise reduction provided in an embodiment of the present invention；
Fig. 2 is the another structural representation of the device of transformer station's noise reduction provided in an embodiment of the present invention；
During Fig. 3 is the device of transformer station's noise reduction provided in an embodiment of the present invention, the structural representation of acoustic isolater；
During Fig. 4 is the device of transformer station's noise reduction provided in an embodiment of the present invention, the structural representation of sound absorber.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure and should not be by embodiments set forth here
Limited.On the contrary, there is provided these embodiments are able to be best understood from the disclosure, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.It should be noted that in the case where not conflicting, embodiment in the present invention and
Feature in embodiment can be mutually combined.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
Referring to Fig. 1 and Fig. 2, the preferred structure of the device of transformer station's noise reduction provided in an embodiment of the present invention in figure, is shown.
As illustrated, the compound acoustic device includes：Support 3, acoustic isolater 1, sound absorber 2 and pull bar 4.
Wherein, sound absorber 2 is connected to support 3.Specifically, sound absorber 2 can be steel plate, and sound absorber 2 can be removably
It is connected in support 3.
Acoustic isolater 1 is rotatably connected at support 3 and is set up in parallel with sound absorber 2.Specifically, acoustic isolater 1 can be plate
Shape structure, acoustic isolater 1 can be connected with support 3 by rotating shaft.Acoustic isolater 1 can be set in parallel in support 3 with sound absorber 2,
Wherein, sound absorber 2 is arranged on the rear side (for position shown in Fig. 1) of acoustic isolater 1.
Support 3 can include：First supports body 31 and first base 32.Wherein, first support the lower end (phase of body 31
For position shown in Fig. 1) it is connected with first base 32, the first end (right side described in Fig. 1 of acoustic isolater 1 and sound absorber 2
End) it is connected with the first support body 31.Preferably, support 3 can also include：Second supports body 36 and second base
37；Wherein, the lower end of the second support body 36 is connected with second base 37, and the second end of acoustic isolater 1 and sound absorber 2 is (in Fig. 1
Described left end) it is connected with the second support body 36.In the present embodiment, first supports body 31 and second to support body 36
For identical structure, first base 32 and second base 37 are identical structure.Specifically, first body 31 and second are supported
Support body 36 can be H profile steel post, and first base 32 and second base 37 can be platy structure, first base 32 and second base
37 two ends can be welded on H profile steel post.Two sides of acoustic isolater 1 and sound absorber 2 are connected with support 3, are enhanced
Integrally-built stability.
During installation, sound absorber 2, acoustic isolater 1 are respectively arranged in support 3, both one modules of overall composition, further according to
In transformer station, above-mentioned module is spliced by the setting height(from bottom) of electrical equipment, to constitute the compound sound-screen of differing heights and width
Barrier, is finally arranged on transformer's type equipment compound sound barrier near the position of noise source.
During use, the angle direction of acoustic isolater 1 according to the noise source of power equipment in transformer station, can be adjusted so as to
Obstruct absorption can be carried out with centering low frequency range noise to noise source just, part is not blocked the Middle and low frequency noise of absorption through arranging
Be reflected back in the sound absorber 2 on rear side of acoustic isolater 1 or decay is produced in sound absorber 2.
As can be seen that in the present embodiment, being entered to the Middle and low frequency noise in noise radiation by the acoustic isolater 1 of angle adjustable
Row is intercepted, and Middle and low frequency noise is further absorbed by sound absorber 2, and acoustic isolater 1 and sound absorber 2 are applied in combination, centering
Low-frequency noise is fully absorbed, and strengthens noise reduction.
In above-described embodiment, acoustic isolater 1 can include:Multiple sound insulation bodies 11 being set up in parallel, and each sound insulation body 11
Rotate with support 3 and be connected.Specifically, the body 11 that insulates against sound can be strip, the section of the body 11 that insulates against sound can for it is oval,
Strip etc..Each sound insulation body 11 can be arranged in support 3 with equidistant parallel and removably be rotationally connected with support 3.
Pull bar 4 is additionally provided with acoustic isolater 1, pull bar 4 is all connected with each sound insulation body 11, for adjusting each sound insulation body 11
With the angle between support 3.Pull bar 4 can be rotated with each sound insulation body 11 and is connected, and the mode for rotating connection can be according to tool
Body situation is determined, and the present embodiment does not do any restriction to which.When pull bar 4 is pulled, each sound insulation body 11 can be with pull bar 4
Motion and opposite brackets 3 rotate, each acoustic isolater 1 rotate angle can be adjusted according to actual conditions.
In the present embodiment, the angle of sound insulation body 11 can be adjusted by pull bar 4, so that each sound insulation 11 phase lap of body
Connect, to reach best noise reduction；Additionally, each sound insulation body 11 is detachably connected with support 3, maintenance is changed more square
Just.
Referring to Fig. 3, in above-described embodiment, each sound insulation body 11 includes：Damping body 111 and it is packaged in damping body 111
Outside housing 112.Specifically, damping body 111 can be visco-elastic damping material, and when being embodied as, sound insulation body 11 can be with
It is made up of the double-deck zinc coated sheet of 1mm-2mm, is the visco-elastic damping material interlayer of 1mm-2mm in the middle of thin plate.Viscoelastic damping
Material can be composited by various damping materials such as rubber, as long as the effect of noise reduction can be played, the present embodiment is to damping
The concrete material of body does not do any restriction.Housing 112 can be steel plate, with improve mechanical strength.Damping body 111 can pass through glue
Stick is bonded in housing 112.When Middle and low frequency noise is by sound insulation body 11, housing 112 can be caused to produce vibration, damping body
The vibrational energy is dissipated by 111.
As can be seen that damping body is arranged in sound insulation body 11, the Wave energy of Middle and low frequency noise can be changed into which
He falls the energy ezpenditure of form, further enhancing the obstruct acoustically effective of acoustic isolater 1.
Referring to Fig. 4, in above-described embodiment, sound absorber 2 includes：Two pieces of connecting plates 21 being set up in parallel and it is connected to two pieces of companies
At least two blocks side plates 22 between fishplate bar 21.Wherein, connecting plate 21 is set up in parallel with acoustic isolater 1, i.e.,：Connecting plate 21 can be with parallel
It is arranged at the rear side of acoustic isolater 1.Specifically, connecting plate 21 and side plate 22 can be the galvanized steel with stronger anticorrosion ability
Plate.Two pieces of connecting plates 21 and each block of side plate 22 enclose and are set as a cavity, and the thickness of the cavity can be 50mm.
When being embodied as, when Middle and low frequency noise incides connecting plate 21, the resonant cavity that connecting plate 21 is formed in sound wave
Exciting under and vibrate, make connecting plate occur bending and deformation and then dissipation acoustic wave energy.
As can be seen that the two pieces of connecting plates 21 and side plate 22 in the present embodiment enclose the cavity for setting constitutes resonance sound-absorbing knot together
Structure, Middle and low frequency noise energy is gradually used up and the propagation of sound wave is prevented；Additionally, 2 simple structure of sound absorber and high temperature resistant, can
With suitable for the particular surroundings such as high velocity air, high temperature or humidity.
In above-described embodiment, at least a piece in two pieces of connecting plates 21 offers through hole 211.Specifically, can be at one piece
Through hole 211 is opened up on connecting plate 21, it is also possible to open up through hole 211 on two boards, usually, positioned at front side (close sound insulation
Through hole 211 is opened up on body connecting plate 21 1), and connecting plate 21 can be the steel plate that thickness is 1mm；Positioned at rear side (away from acoustic isolater
1) connecting plate 21 is non-porous steel plate, and the thickness of non-porous steel plate can also be 1mm.Through hole 211 can be micro-hole, micro-hole
Diameter is generally less than 1mm, for example, 0.8mm.Preferably, through hole 211 is uniformly distributed on connecting plate 21.For example, punching rate can be with
For 2%.When being embodied as, the distribution density of through hole 211, this reality can be selected according to the frequency range of noise in actual environment
Apply example and any restriction is not done to which.
As can be seen that being formed between spray, and the accent of two pieces of connecting plates 21 by the gas of through hole 211 on connecting plate 21
Friction is produced, to consume the acoustic wave energy of Middle and low frequency noise.
In the various embodiments described above, support 3 also includes：Top board 33 and base plate 34.Wherein, top board 33 and base plate 34 are respectively placed in
Above and below acoustic isolater 1 and sound absorber 2 (for position shown in Fig. 1), and respectively with acoustic isolater 1 and sound absorber 2
It is connected.The two ends of top board 33 and base plate 34 are connected with the first support body 31 and the second support body 36 respectively.Specifically,
The top and bottom of acoustic isolater 1 and sound absorber 2 are connected to top board 33 and base plate 34, and top board 33 and base plate 34 can be to sound insulation
Body 1 and sound absorber 2 are preferably fixed, to improve integrally-built stability.It should be noted that relating in the present embodiment
And " top " " lower section " refer to for the orientation of structure shown in Fig. 1.
In the various embodiments described above, support 3 can also include：Head rod 35 and the second connecting rod (not shown).
Wherein, head rod 35 and the second connecting rod are placed between top board 33 and base plate 34, and head rod 35 is near acoustic isolater 1
The second end arrange, the second connecting rod is arranged near the first end of acoustic isolater 1, the two ends of head rod 35 respectively with top board 33
It is connected with the first end (left end shown in Fig. 1) of base plate 34.The two ends of the second connecting rod respectively with top board 33 and base plate 34
The second end (right-hand member shown in Fig. 1) be connected；The two ends of acoustic isolater 1 are turned with head rod 35 and the second connecting rod respectively
Dynamic connection.In the present embodiment, head rod 35 and the second connecting rod are identical structure.
As can be seen that in the present embodiment, due to being additionally arranged head rod 35 and the second connecting rod, acoustic isolater 1 can be made
More it is firmly connected to the first support body 31 and second to support between body 36, and then enhances integrally-built stable
Property.
In sum, in the present embodiment, the Middle and low frequency noise in noise radiation is absorbed by acoustic isolater 1, is passed through
Sound absorber 2 is further intercepted to Middle and low frequency noise, and acoustic isolater 1 and sound absorber 2 are applied in combination, and enhance noise reduction.
Furthermore, it is possible to assembly be carried out according to transformer station's actual environment demand, be assembled into the compound sound barrier of differing heights and width, install
Simply, and easy access and maintenance.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of device of transformer station's noise reduction, it is characterised in that include：
Support (3)；
Sound absorber (2), is connected to the support (3)；
Acoustic isolater (1), is rotatably connected at the support (3) and is set up in parallel with the sound absorber (2).
2. device according to claim 1, it is characterised in that acoustic isolater (1) includes:Multiple sound insulation being set up in parallel
Body (11), and it is each it is described sound insulation body (11) with the support (3) rotate be connected；
Pull bar (4) is additionally provided with acoustic isolater (1), and pull bar (4) are all connected with each sound insulation body (11), are used for
Adjust the angle between each sound insulation body (11) and the support (3).
3. the device of transformer station's noise reduction according to claim 2, it is characterised in that each described sound insulation body (11) is wrapped
Include：Damping body (111) and the housing (112) being packaged in outside the damping body (111).
4. the device of the transformer station's noise reduction according to any one of claim 1-3, it is characterised in that sound absorber (2)
Including：Two pieces of connecting plates being set up in parallel (21) and at least two blocks side plates being connected between two pieces connecting plate (21)
(22)；Wherein, two pieces connecting plate (21) and each piece side plate (22) enclose and are set as a cavity；Connecting plate (21) and institute
State acoustic isolater (1) to be set up in parallel.
5. the device of transformer station's noise reduction according to claim 4, it is characterised in that in two pieces connecting plate (21) extremely
Few one piece offers through hole (211).
6. the device of transformer station's noise reduction according to claim 5, it is characterised in that through hole (211) are in the connection
Plate is uniformly distributed on (21).
7. the device of the transformer station's noise reduction according to any one of claim 1-3, it is characterised in that described support (3) wrap
Include：First supports body (31) and first base (32)；Wherein, described first support the lower end and first bottom of body (31)
Seat (32) is connected, and the first end of acoustic isolater (1) and the sound absorber (2) is connected with the described first support body (31)
Connect.
8. the device of transformer station's noise reduction according to claim 7, it is characterised in that support (3) also include：Second
Support body (36) and second base (37)；Wherein,
The lower end of second support body (36) is connected with the second base (37), acoustic isolater (1) and the suction
Second end of sound body (2) is connected with the described second support body (36).
9. the device of transformer station's noise reduction according to claim 8, it is characterised in that support (3) also include：Top board
And base plate (34) (33)；Wherein,
Top board (33) and the base plate (34) be respectively placed in the top of the acoustic isolater (1) and the sound absorber (2) and under
Side, and be connected with the acoustic isolater (1) and the sound absorber (2) respectively；
The two ends of top board (33) and the base plate (34) support body (31) and described second to support respectively with described first
Body (36) is connected.
10. the device according to transformer station's noise reduction according to claim 8, it is characterised in that support (3) also include：
Head rod (35) and the second connecting rod；Wherein,
Head rod (35) two ends are connected with the first end of the top board (33) and the base plate (34) respectively；
The two ends of second connecting rod are connected with the second end of the top board (33) and the base plate (34) respectively；
The two ends of acoustic isolater (1) are rotated with the head rod (35) and second connecting rod respectively and are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916468.4A CN106531142A (en) | 2016-10-20 | 2016-10-20 | Noise-reducing device for transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916468.4A CN106531142A (en) | 2016-10-20 | 2016-10-20 | Noise-reducing device for transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106531142A true CN106531142A (en) | 2017-03-22 |
Family
ID=58332483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610916468.4A Pending CN106531142A (en) | 2016-10-20 | 2016-10-20 | Noise-reducing device for transformer substation |
Country Status (1)
| Country | Link |
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| CN (1) | CN106531142A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107724550A (en) * | 2017-11-30 | 2018-02-23 | 广东电网有限责任公司电力科学研究院 | A kind of transformer station's noise cancellation apparatus |
| CN110595052A (en) * | 2019-09-20 | 2019-12-20 | 武汉源海博创科技有限公司 | Silencer with adjustable and excellent performance adapting to air inlet parameters |
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| CN110595052B (en) * | 2019-09-20 | 2022-03-18 | 宁波源海博创科技有限公司 | Silencer with adjustable and excellent performance adapting to air inlet parameters |
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Application publication date: 20170322 |