CN207052429U - A kind of transformer station's silencing apparatus - Google Patents
A kind of transformer station's silencing apparatus Download PDFInfo
- Publication number
- CN207052429U CN207052429U CN201720899455.0U CN201720899455U CN207052429U CN 207052429 U CN207052429 U CN 207052429U CN 201720899455 U CN201720899455 U CN 201720899455U CN 207052429 U CN207052429 U CN 207052429U
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- Prior art keywords
- transformer
- iron core
- noise
- vibration
- air spring
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Abstract
The utility model discloses a kind of transformer station's silencing apparatus, the problem of sound arrester noise reduction is bad is inhaled for outside, following technical scheme is provided, including is arranged in transformer and is used to connect iron core and housing to support the air spring of iron core and be enclosed on the noise elimination overcoat outside transformer for sound insulation positioned at iron core upper and lower ends.Iron core and housing are connected by air spring, so that iron core itself is absorbed due to the vibration that the effect of electromagnetic field is sent by air spring, it is transferred to obstructing vibration on housing, vibration is set to be limited in a small range of iron core, the vibration avoided is vibrated and then sends a large amount of noises on a large scale caused by transmitting, fundamentally alleviate noise, due to when air spring, which absorbs, to be vibrated, itself will not equally produce vibration to mechanical spring, further reduce the generation of noise, by noise reduction overcoat auxiliary, in outside, the transmission to noise obstructs, and reaches the effect for further reducing noise.
Description
Technical field
A kind of silencing apparatus is the utility model is related to, more specifically, it relates to a kind of transformer station's silencing apparatus.
Background technology
Environmental problem is the global problem of mankind's common concern, and noise pollution is even more to turn into what is primarily captured in 21st century
One of environmental problem.Man-made noise, urban traffic noise and domestic noise constitute three main sources of ambient noise.Industry
Noise stands in the breach as maximum pollution from environmental noise, and transformer station's noise is one of Main Noise Sources in man-made noise.
With the rapid development of urban construction, indoor substation is continuously increased, and transformer station inevitably enters densely inhabited district,
Meanwhile some remote transformer stations are also just being surrounded by newly-built residential quarter or development zone.Transformer body and reactor operation production
Raw noise and increased ventilation blower and cooling blower for the safe operation of transformer, turn into indoor substation noise
One of new important pollution source of noise in city.Transformer station produces Middle and low frequency noise in 24 hours round the clock incessantly, to city dweller
Health hazard is very big；Especially summer high-temperature when, it is bigger to urban environmental impact.Therefore, control indoor substation noise is industry
The important step of noise abatement, and improve the living environment of surrounding resident, make great efforts to build socially harmonious necessary behave.
Transformer（Transformer）It is the device for changing alternating voltage using the principle of electromagnetic induction, main member
It is primary coil, secondary coil and iron core（Magnetic core）.Transformer noise shares three sound sources, when iron core, second, winding, third,
Cooler, i.e., unloaded, load and cooling system cause noise sum.It is to form iron core silicon-steel sheet alternation that iron core, which produces noise reasons,
Under magnetic fields, it may occur that minor variations are magnetostriction, and magnetostriction makes iron core do periodic vibration with excitation frequency change,
In iron core mangneto dilatation and winding, fuel tank and magnetic screen caused by electromagnetic force.It is electric current winding that winding, which produces vibration cause,
Middle generation electromagnetic force, stray field can also make structural member produce vibration.Electromagnetic noise producing cause is Magnetic Field-Induced core lamination stack edge
Extensional vibration produce noise, the vibration amplitude is relevant with magnetic flux density in core lamination stack and iron core material magnetic energy, and with load
Current relationship is little.Electromagnetic force (and vibration amplitude) is directly proportional to current squaring, and transmitting sound power and vibration amplitude square into
Direct ratio.
At present, Application No. CN201420554466.1 Chinese patent discloses a kind of low noise audio amplifier change housing, and it is wrapped
Base, top cover and side wall are included, side wall ecto-entad has been sequentially provided with shell body, noise reduction layer, inner housing and airstrainer, inner casing
Body surface face is covered with mesopore, and multiple spring dampers are provided with the bottom groove of base, are installed jointly at the top of spring damper
The backing plate of one carrying transformer.
Although this low noise audio amplifier, which becomes housing, can alleviate the vibrations of transformer, the generation of noise is reduced, it is because pass through
Backing plate accepts transformer, and transformer can produce because transformer shakes and hit and then produce noise with pad contact face, pass through bullet
Spring damping vibration, spring damper itself can shake and then produce and make an uproar under the jerk of electromagnetic interference and backing plate
Sound, also improved space.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of transformer station's silencing apparatus, tool
There is the advantages of further reducing noise.
To achieve the above object, the utility model provides following technical scheme：
A kind of transformer station's silencing apparatus, including be arranged in transformer positioned at iron core upper and lower ends be used for connect iron core and
Housing is used for the noise elimination overcoat of sound insulation outside transformer to support the air spring of iron core and be enclosed on.
Using above-mentioned technical proposal, iron core and housing are connected by air spring so that iron core itself is due to electromagnetic field
Act on the vibration sent to be absorbed by air spring, be transferred to obstructing vibration on housing, vibration is limited in the small range of iron core
It is interior, avoid vibration from being vibrated on a large scale caused by transmitting and then send a large amount of noises, fundamentally alleviate noise, due to air spring
When absorbing vibration, itself will not equally produce vibration to mechanical spring, further reduce the generation of noise, auxiliary by noise reduction overcoat
Help the transmission to noise in outside to obstruct, reach the effect for further reducing noise.
Preferably, the air spring and iron core in iron core multiple directions for transmitting by being vibrated to air spring
Universal joint connection.
Using above-mentioned technical proposal, air spring and iron core are connected by universal joint so that carried during iron core vertical vibrating
Horizontal vibration offset by universal joint, further the vibration in multiple directions is delivered on air spring, reaches further
Reduce the effect of noise.
Preferably, in addition to it is arranged on housing for shielding the electro-magnetic screen layer that electromagnetism leaks.
Using above-mentioned technical proposal, the electromagnetic field sent by the electro-magnetic screen layer coil being attached on housing can not be worn
Thoroughly and spread out of, prevent influence of the battery field to transformer external structure, and then make external structure will not be because of the electromagnetic field of leakage
And vibrate, reach the effect for further reducing noise.
Preferably, the noise elimination overcoat includes the froth bed for being arranged on internal layer.
Using above-mentioned technical proposal, the outer froth bed for putting setting of eliminating the noise is adsorbed to noise by its loose structure,
The effect for absorbing noise is realized, reaches the effect for further reducing noise.
Preferably, the noise elimination overcoat includes the steel plate layer being arranged on outside froth bed.
Using above-mentioned technical proposal, steel plate layer is because its consistency causes sound wave to be difficult to penetrate, so that noise barrier is in steel
In flaggy, and then obstruct in noise elimination overcoat, reach the effect for further reducing noise.
Preferably, the noise elimination overcoat includes the vacuum layer being arranged on outside steel plate layer.
Using above-mentioned technical proposal, because the propagation of sound wave needs medium, true aerial sound can not be propagated so that noise without
Method penetrates vacuum layer, to obstruct noise outflow, reaches the effect for further reducing noise.
Preferably, in addition to the oil tank that transformer is used to cool down transformer outside is arranged on, the oil tank passes through with transformer
Flexible pipe connects.
Using above-mentioned technical proposal, oil tank and transformer are connected by flexible pipe so that transformer is produced due to core vibration
Raw micro vibration is absorbed by flexible pipe, and barrier vibration is transferred on oil tank, and then oil tank will not be vibrated, and is reached into one
Step reduces the effect of noise.
Preferably, in addition to the heat abstractor that is fixed on transformer shell.
Using above-mentioned technical proposal, by heat abstractor by transformer work caused by heat shed so that transformer
Stable working state, reach the effect of stabilizing equipment operation.
Preferably, in addition to set on the transformer be used for prevent electric leakage insulating sleeve.
Using above-mentioned technical proposal, coil is connected with cable in insulating sleeve, to prevent the connection of coil and cable from going out
Leak electricity, improve the security of equipment, reach the effect of stabilizing equipment operation.
In summary, the utility model has the advantages that：Noise is further reduced, limitation vibration is transmitted, shielding
Electromagnetic exposure, stabilizing equipment operation, prevents electric leakage etc..
Brief description of the drawings
Fig. 1 is the overall structure diagram of transformer station's silencing apparatus in the utility model；
Fig. 2 is the schematic diagram that transformer station's silencing apparatus is used for schematic inner structure in the utility model；
Fig. 3 is the enlarged diagram in A portions in the utility model.
In figure：1st, base；2nd, exterior wall；21st, panel layer；22nd, interior flaggy；23rd, steel plate layer；24th, froth bed；25th, vacuum layer；
3rd, transformer；31st, housing；32nd, inner casing；33rd, shell；34th, electro-magnetic screen layer；35th, cavity is cooled down；36th, upper lid；4th, oil tank；41、
Oil return pipe；42nd, flexible pipe；43rd, tank frame；44th, flowline；5th, heat abstractor；51st, fin；52nd, leg；6th, coil；61st, iron core；
62nd, support；63rd, insulating sleeve；7th, air spring；71st, ball bowl end；72nd, bulb end；73rd, universal joint；8th, dodge gate.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the utility model is described in detail.
A kind of transformer station's silencing apparatus, reference picture 1, including base 1 and the exterior wall 2 being fixedly connected on base 1, exterior wall 2
One side be hinged with dodge gate 8.
Reference picture 2（Conceal the part of shell）And Fig. 3, exterior wall 2 is interior to be provided with transformer 3, and transformer 3 includes housing 31,
The bottom of housing 31 is fixedly connected on base 1, and housing 31 includes inner casing 32 and shell 33, and iron core 61, iron core are provided with housing 31
61 upper and lower ends are fixedly connected with support 62, and the upper wall and lower wall of inner casing 32 are respectively equipped with 4 air springs 7, positioned at inner casing 32
One end of air spring 7 of lower section is connected with the inwall of inner casing 32 by universal joint 73, and the ball bowl end 71 of universal joint 73 is fixedly connected
On the inwall of inner casing 32, the bulb end 72 of universal joint 73 is fixedly connected on the lower end of air spring 7, and air spring 7 is away from interior
One end of shell 32 is connected with support 62 by universal joint 73, and the ball bowl end 71 of universal joint 73 is fixedly connected on the following table of support 62
Face, the bulb end 72 of universal joint 73 are fixedly connected on the upper end of air spring 7, and the air spring 7 above inner casing 32 connects
Mode is consistent with the air spring 7 of the lower section of inner casing 32, and for closure on the contrary, being not repeated, air spring 7 is distributed in support 62
Corner, the vibration of iron core 61 is absorbed to limit vibration unofficial biography by air spring 7.
Lid 36 is stamped in the upper end of housing 31, and upper lid 36 is provided with multiple string holes（Not shown in figure）, it is provided with each string holes
Insulating sleeve 63, insulating sleeve 63 are inserted in string holes, and multigroup coil 6 is full of on iron core 61, and the end of a thread of coil 6 is connected to insulating sleeve
In 63, electro-magnetic screen layer 34 is posted on the inwall of inner casing 32, electro-magnetic screen layer 34 is copper film in the present embodiment, in other embodiment
Can be aluminium film, silver-colored mould etc..
Housing 31 is externally provided with heat abstractor 5, and heat abstractor 5 includes multiple fin 51 and four legs 52, and leg 52 is solid
Surely it is connected on the outer surface of shell 33, the front-rear side walls of housing 31 are respectively provided with a heat abstractor 5.
The right-hand member of housing 31 is provided with oil tank 4, and oil tank 4 is supported and is fixedly connected on base 1 by tank frame 43, and oil tank is provided with
Flowline 44 and the flowline 44 of oil return pipe 41 and oil return pipe 41 are communicated to the cooling formed on housing 31 by shell 33 and inner casing 32
The end that cavity 35, flowline 44 and oil return pipe 41 are connected to housing 31 is flexible pipe 42, and absorbing transformer 3 by flexible pipe 42 spreads out of
Vibration.
Exterior wall 2 includes outermost vacuum layer 25, and vacuum layer 25 includes panel layer 21 and interior flaggy 22, panel layer 21 and interior
Space is left between flaggy 22, is vacuumized between panel layer 21 and interior flaggy 22, vacuum layer 25 is located on the inwall of interior flaggy 22
Provided with abundant steel plate layer 23, surface of the steel plate layer 23 away from vacuum layer 25 is provided with froth bed 24.
In summary, when transformer starts, alternating current passes through coil 6, and transformation, Jin Ertong are realized by the way that electromagnetic induction is remote
Cross insulating sleeve 63 to connect with urban distribution network, the electric energy after transformation is sent out.
During transformation, coil 6 produces alternating magnetic field, and iron core 61 is in the presence of alternating magnetic field, it may occur that small
Change is magnetostriction, and magnetostriction makes iron core 61 do periodic vibration with excitation frequency change, so as to which iron core 61 produces electromagnetism
Noise, during transformation, electric current produces electromagnetic force by coil 6 so that coil 6 produces vibration, and then coil 6
Electromagnetic noise is produced, the electromagnetic field that coil 6 is sent can also make surrounding structure part produce vibration, and then produce electromagnetic noise.
When iron core 61 vibrates, because support 62 is fixedly connected on iron core 61, support 62 follows iron core 61 to vibrate, and enters
And the air spring 7 passed to positioned at 62 4 jiaos of support will be vibrated, and then buffer the vibration of iron core 61 in vertical direction, air
Spring 7 with support 62 by universal joint 73 due to being connected so that support 62 can move to multiple directions in the horizontal direction, simultaneously
Universal joint 73 can counteract the limitation moved to iron core 61 by changing self-view, pass through universal joint 73 and air spring 7
Under collective effect, iron core 61 is obtained for buffering with the vibration in vertical direction in the horizontal direction, reaches to greatest extent
The effect of core vibration is buffered, and then is reduced because iron core 61 vibrates and caused electromagnetic noise, meanwhile, the vibration of coil 6
It is transferred to by iron core 61 on air spring 7, air spring 7 has buffered the vibration of coil 6, and then reduces because coil 6 shakes
Dynamic and caused electromagnetic noise.
Support 62 is fixed by upper and lower eight air springs 7, and upper end air spring 7 plays a part of hanging iron core 61, under
End air spring 7 plays a part of supporting iron core 61, simultaneously because iron core has air spring 7 about 61 so that iron core 61
Vibration obtains multi-faceted buffering, reaches barrier iron core 61 and vibrates the effect for being transferred to housing 31.
Meanwhile electromagnetic field caused by coil 6 is electromagnetically shielded by the grounding wire layer 34 and shielded, the structural member outside housing 31 and housing 31 is not
Vibration can be produced by the effect of electromagnetic field.
Transformer 3 can produce heat when working, and heat is conducted into heat abstractor 5 by housing 31, and heat abstractor 5 passes through
Fin 51 distributes heat into air, reaches the effect of radiating, while be full of in the cooling cavity 35 of housing 31 from oil tank 4
The cooling oil injected by flowline 44, cooling oil cooling housing 31, and then hot friendship is carried out by inner casing 32 and the inside of housing 31
Change, reach the effect cooled down to transformer 3.
Because the connection end of housing 31 of flowline 44 and oil return pipe 41 and transformer 3 uses flexible pipe 42, even if transformer 3 is whole
Due to the vibration of iron core 61 and coil 6 micro vibration occurs for body, can also be offset by flexible pipe 42, reaches and has completely cut off vibration transmission
To the effect of oil tank 4.
The noise that froth bed 24 on the exterior wall 2 outside transformer 3 can be sent to transformer 3 further absorbs, and is located at
Steel plate layer 23 outside froth bed 24 can effectively obstruct the transmission of noise, and the vacuum layer 25 being eventually positioned at outside steel plate layer 23 is played into one
The effect of step isolation noise transmission, reaches isolation noise transmission to the effect of exterior space.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (9)
1. a kind of transformer station's silencing apparatus, it is characterized in that：Including being arranged in transformer (3) positioned at iron core (61) upper and lower ends
It is used for outside with supporting the air spring of iron core (61) (7) and being enclosed on transformer (3) for connecting iron core (61) and housing (31)
The noise elimination overcoat of sound insulation.
2. transformer station's silencing apparatus according to claim 1, it is characterized in that：The air spring (7) is logical with iron core (61)
Cross for transmitting the universal joint (73) being vibrated on air spring (7) connection in iron core (61) multiple directions.
3. transformer station's silencing apparatus according to claim 1, it is characterized in that：Also include being arranged on housing (31) and be used to shield
Cover the electro-magnetic screen layer (34) that electromagnetism leaks.
4. transformer station's silencing apparatus according to claim 1, it is characterized in that：The noise elimination overcoat includes being arranged on internal layer
Froth bed (24).
5. transformer station's silencing apparatus according to claim 4, it is characterized in that：The noise elimination overcoat includes being arranged on froth bed
(24) steel plate layer (23) outside.
6. transformer station's silencing apparatus according to claim 5, it is characterized in that：The noise elimination overcoat includes being arranged on steel plate layer
(23) vacuum layer (25) outside.
7. transformer station's silencing apparatus according to claim 1, it is characterized in that：Also it is used for outside including being arranged on transformer (3)
The oil tank (4) of transformer (3) is cooled down, the oil tank (4) is connected with transformer (3) by flexible pipe (42).
8. transformer station's silencing apparatus according to claim 1, it is characterized in that：Also include being fixed on transformer (3) housing
(31) heat abstractor (5) on.
9. transformer station's silencing apparatus according to claim 1, it is characterized in that：Also include being located on transformer (3) and be used to prevent
The insulating sleeve (63) of leak-stopping electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899455.0U CN207052429U (en) | 2017-07-22 | 2017-07-22 | A kind of transformer station's silencing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899455.0U CN207052429U (en) | 2017-07-22 | 2017-07-22 | A kind of transformer station's silencing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207052429U true CN207052429U (en) | 2018-02-27 |
Family
ID=61496528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720899455.0U Expired - Fee Related CN207052429U (en) | 2017-07-22 | 2017-07-22 | A kind of transformer station's silencing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207052429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281904A (en) * | 2020-11-12 | 2021-01-29 | 保定天威保变电气股份有限公司 | Anti-seismic universal foundation structure and method for transformer |
-
2017
- 2017-07-22 CN CN201720899455.0U patent/CN207052429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281904A (en) * | 2020-11-12 | 2021-01-29 | 保定天威保变电气股份有限公司 | Anti-seismic universal foundation structure and method for transformer |
| CN112281904B (en) * | 2020-11-12 | 2021-12-21 | 保定天威保变电气股份有限公司 | Anti-seismic universal foundation structure and method for 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 |
Granted publication date: 20180227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |