CN206774361U - A kind of denoising device of power transformer - Google Patents
A kind of denoising device of power transformer Download PDFInfo
- Publication number
- CN206774361U CN206774361U CN201720680025.XU CN201720680025U CN206774361U CN 206774361 U CN206774361 U CN 206774361U CN 201720680025 U CN201720680025 U CN 201720680025U CN 206774361 U CN206774361 U CN 206774361U
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- Prior art keywords
- power transformer
- sound
- elastic damping
- damping part
- blimp
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Abstract
The utility model belongs to the technical field of power transformer, a kind of more particularly to denoising device of power transformer, including vibration absorber and noise reduction unit, vibration absorber is removably arranged in installation pedestal, vibration absorber includes support column and elastic damping part, support column is arranged in installation pedestal, and elastic damping part is set in outside support column, and the horizontal level of elastic damping part upper end is higher than the horizontal level of support column upper end；Noise reduction unit is removably arranged in installation pedestal, and noise reduction unit includes sound-absorbing cover and blimp, and tuning fork is set in the accommodating chamber between the shell and sound-absorbing cover of power transformer.By setting vibration absorber, vibration can be effectively absorbed, is reduced because of noise caused by vibration, Vibration propagation can be reduced to the intensity on ground, security and stability when and can improves transformer work.Setting includes noise reduction unit of the sound-absorbing cover with blimp, you can to absorb noise, can completely cut off noise again, and set tuning fork, noise is reduced by the resonance with power transformers.
Description
Technical field
The utility model belongs to the technical field of power transformer, more particularly to a kind of denoising device of power transformer.
Background technology
Power transformer is a kind of static electrical equipment, is the alternating voltage (electricity by electromagnetic coupled by a certain numerical value
Stream) become the voltage (electric current) that frequency identical is another or several numerical value are different.In electric power long distance transmission, transformer is taken on
Important role, voltage is on the one hand raised by transformer electric energy is sent to electricity consumption area, another aspect transformer is voltage drop
It is low to use voltage to be at different levels, to meet the needs of user power utilization.In recent years, as the improvement of people's living standards, residential electricity consumption
Amount is swift and violent to be increased, and causes the power transformer of residential block to increase.At present, the position of layouting of transformer is substantially at by residential building
Or in building, also, Large and Medium-sized Power Transformer is also used more and more in residential quarter or public place.
Noise caused by power transformer brings huge puzzlement.Power transformer mainly by iron core, carry
Winding, transformer oil, fuel tank and the part of insulating sleeve five composition of insulation.In the transformer course of work, the silicon of iron core is formed
Magnetostriction can occur in the presence of alternating magnetic field for steel disc, iron core is done periodic vibration with the change of excitation frequency；And lead to
The electric current crossed caused electromagnetic force and stray field in the windings, structure member can be made to produce vibration.These cause transformer
The generation of noise, and caused noise is propagated to four sides, greatly affected the life of surrounding resident.Existing outdoor transformer
Noise abatement usually is carried out using the sound insulation of the tradition such as sound barrier, half acoustic hood, sound absorption technique, in residential block apart from close situation
Under, to reach correlated noise limitation standard, difficulty is very big and brings other problemses.For example, build very high sound barrier, Ke Nengying
The daylighting and ventilation of residential building nearby are rung, cost needed for the steel construction of barrier is very high, etc..Noise, power transformation is greatly lowered
Stand and also usually build house, transformer is placed in closing space, namely place indoors.
In recent years, as industrial and agricultural production and the increasingly increase of electricity consumption of resident, being gradually arranged on for transformer are close
City and the more place of residential block population.The transformer station of many Large Copacities is built in urban district successively, and the change of Small And Medium Capacity
Depressor is installed on residential area extensively so that noise problem becomes increasingly conspicuous caused by transformer.Audible noise, it is particularly continuous
The audio constantly radiated, it is a kind of noise that people are difficult to receive.In order to improve power supply quality and improve the reliable of urban electricity supply
Property, the loss of power transmission is reduced, net large-scale substation used in city needs to build in urban district.With increasing power transformation
Station is built in shopping centre and residential block, and noise problem caused by transformer vibration becomes very prominent.
Therefore, it is bad to caused by staff in nearby residents physical and mental health and station further to reduce transformer noise
Influence, be transformer need urgent need to resolve in producing installation process the problem of.
Utility model content
Shaping has been produced in view of current a large amount of transformers, and to be improved with respect to transformer construction itself to drop
The cycle of low noise can be considerably long, and the invasion of this transformer noise is just constantly being received in people's life at present.Therefore, this practicality
It is new to want to provide a kind of easy to disassemble, installation, and a kind of denoising device of the power transformer of noise reduction well.
The utility model is mainly to solve the above-mentioned technical problem present in prior art, there is provided a kind of power transformer
The denoising device of device.Convenient installation, dismounting and replacing of the present utility model, cost is low, service life length.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of denoising device of power transformer, bag
The vibration absorber for being arranged on the power transformer bottom and the noise reduction unit being enclosed in outside power transformer are included,
The vibration absorber is removably arranged in the installation pedestal of power transformer bottom, and the vibration absorber includes
Support column and elastic damping part, the support column are fixedly installed in installation pedestal, and the elastic damping part is set in the branch
Outside dagger, the upper end of the elastic damping part is fixedly installed on the bottom of the power transformer, under the elastic damping part
End is fixedly installed in the installation pedestal, and the horizontal level of the elastic damping part upper end is higher than the water of the support column upper end
Prosposition is put；
The noise reduction unit is removably arranged in installation pedestal, and is coated on the power transformer and vibration absorber
Outside, the noise reduction unit includes being enclosed in the sound-absorbing cover and blimp outside the power transformer from inside to outside, and the electric power becomes
Accommodating chamber is provided between the inwall of the shell of depressor and the sound-absorbing cover, tuning fork is provided with the accommodating chamber.Wrapped by setting
The vibration absorber of support column and elastic damping part is included, when power transformer vibration is subtracted initial stage by elastic damping part stress to realize
Shake effect, with the increase of elastic damping part deformation quantity, and then support column stress, it can effectively absorb power transformer and run
Caused vibration in journey, it is dramatically reduced or even eliminates in transformer in operation and produce noise because of vibration,
Vibration propagation produced by power transformer can be reduced to ground intensity, and can improve transformer work when security with stably
Property, so that transformer station high-voltage side bus is more steady, safety.Setting includes noise reduction unit of the sound-absorbing cover with blimp, you can to inhale
Noise caused by the operation of power transformer is received, again can be by Noise insulati on relatively low after absorption in blimp, and tuning fork is set,
Noise is reduced by the resonance with power transformers.
Further：The vibration absorber has several, is evenly distributed on the bottom of the power transformer.Multiple subtract is set
Vibrating device, share and being vibrated caused by power transformers operation jointly, reduce vibrating noise.
Further：The elastic damping part is in isometrical coil spring shape.By the elastic damping for setting coil spring shape
Part when being run caused vibrate by by power transformer and produce external applied load, helically receive by the elastic damping part of spring-like
Compression deformation, deformation energy is stored, reduce noise caused by power transformer vibration.
Further：The elastic damping part is in diameter coil spring shape incremented by successively from top to bottom.By setting
The elastic damping part of the coil spring shape in footpath produces external applied load difference when being run caused vibrate by by power transformer
When helically spring-like elastic damping part contraction distortion degree also differ, store deformation energy, reduce power transformer vibration
Caused noise.
Further：The tuning fork has several, and the tuning fork is arranged in the accommodating chamber by flexible link, the sound
The fixed frequency of fork is identical with the vibration frequency that the power transformer is run.Selected according to the operational shock situation of power transformer
An appropriate number of tuning fork is selected, rationally designs the particular location of tuning fork, and tuning fork is fixed by flexible link, weakens and is connected by conventional
Tuning fork itself vibrates caused by fitting fixes tuning fork, and when fork frequency is consistent with power transformer running frequency, can pass through
Resonance cancels each other, and reduces noise.
Further：The material of the sound-absorbing cover is aluminium honeycomb perforated sound-absorbing plate, and the sound-absorbing cover passes through rubber adhesive tape sealing
Be fixedly installed in the installation pedestal.The structural texture of aluminium honeycomb perforated sound-absorbing plate is perforated panel and backboard of perforating, according to
It is directly Nian Jie into aluminium honeycomb sandwich construction with aluminium honeycomb core by high-quality adhesive, last layer is pasted between honeycomb core and panel and backboard and is inhaled
Sound cloth.Because the honeycomb core in honeycomb aluminum plate is separated into numerous closed cells, air flow is prevented, is hindered sound wave
Hinder, improve acoustic absorptivity (can reach more than 0.9), while improve sheet material self-strength, make the size of monolithic sheet material
It can accomplish more greatly, further to increase design freedom.And different punching rates can be designed as requested, in certain scope
The sound-absorption coefficient of interior control combining structure, both reaches design effect, and can enough rationally controls cost.
Further：The blimp is two-layer sound insulating wall structure, is left between the two-layer sound insulating wall structure of the blimp
The air gap, the blimp are fixedly installed in the installation pedestal by rubber adhesive tape sealing.Two interlayers and centre
Air layer forms a resonator system, and near this resonant frequency, soundproof effect is greatly lowered, and has gap setting using bilayer
Sound insulating wall structure, optimal soundproof effect can be obtained compared to individual layer soundproof wall, and blimp is fixed by rubber adhesive tape sealing
In installation pedestal, the sealing between blimp and installation pedestal has been ensured, can prevent sound wave from passing, soundproof effect is more preferable.
Further：The inwall of the blimp is roughness, and the inwall of blimp is arranged into roughness, energy
On enough reflecting background to sound-absorbing covers, radiography caused by power transformer operation is further reduced.
Further：The outside of the noise reduction unit is provided with protective cover, sets rain-proof or sun-proof protective cover in outside, is applicable
In the protection of the power transformer of outdoor mounted, the service life of power transformer is improved.
Based on above-mentioned technical proposal, the beneficial effects of the utility model are：The utility model belongs to the skill of power transformer
Art field, more particularly to a kind of denoising device of power transformer, including be arranged on power transformer bottom vibration absorber and
The noise reduction unit being enclosed in outside power transformer, vibration absorber are removably arranged on the installation pedestal of power transformer bottom
On, vibration absorber includes support column and elastic damping part, support column are fixedly installed in installation pedestal, and elastic damping part is set in
Outside support column, the upper end of elastic damping part is fixedly installed on the bottom of power transformer, the lower end fixed setting of elastic damping part
In installation pedestal, the horizontal level of elastic damping part upper end is higher than the horizontal level of support column upper end；Noise reduction unit is dismountable
It is arranged in installation pedestal, and is coated on the outer ring of power transformer, noise reduction unit includes being enclosed in power transformer from inside to outside
Outside sound-absorbing cover and blimp, is provided with accommodating chamber, is set in accommodating chamber between the shell of power transformer and the inwall of sound-absorbing cover
It is equipped with tuning fork.By setting vibration absorber, caused vibration in transformer in operation can be effectively absorbed, significantly
Reduce even to eliminate in transformer in operation and produces noise because of vibration, produced by can reducing power transformer
Vibration propagation is to the intensity on ground, and and can improves security and stability when transformer works, so that transformer station high-voltage side bus is more
Add steady, safety.Setting includes noise reduction unit of the sound-absorbing cover with blimp, you can to absorb caused by the operation of power transformer
Noise, again can be by Noise insulati on relatively low after absorption in blimp, and sets tuning fork, is dropped by the resonance with power transformers
Low noise.There is the sound insulating wall structure of gap setting using bilayer, and blimp is fixed on installation pedestal by rubber adhesive tape sealing
On, the sealing between blimp and installation pedestal has been ensured, can prevent sound wave from passing, soundproof effect is more preferable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the denoising device of power transformer of the utility model；
In accompanying drawing, the list of parts representated by each label is as follows：
1st, power transformer, 2, vibration absorber, 21, support column, 22, elastic damping part, 3, noise reduction unit, 31, sound-absorbing cover,
32nd, blimp, 4, installation pedestal, 5, accommodating chamber, 6, flexible link, 7, tuning fork, 8, rubber adhesive tape, 9, protective cover.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in figure 1, a kind of denoising device of power transformer, including it is arranged on subtracting for the bottom of power transformer 1
Vibrating device 2 and the noise reduction unit 3 being enclosed in outside power transformer 1,
The vibration absorber 2 is removably arranged in the installation pedestal 4 of the bottom of power transformer 1, the vibration absorber 2
Including support column 21 and elastic damping part 22, the support column 21 is fixedly installed in installation pedestal 4, the elastic damping part 22
It is set in outside the support column 21, the upper end of the elastic damping part 22 is fixedly installed on the bottom of the power transformer 1, institute
The lower end for stating elastic damping part 22 is fixedly installed in the installation pedestal 4, the horizontal level of the upper end of elastic damping part 22
Higher than the horizontal level of the upper end of support column 21；
The noise reduction unit 3 is removably arranged in installation pedestal 4, and is coated on power transformer 1 and the vibration damping dress
2 outer ring is put, the noise reduction unit 3 includes being enclosed in the sound-absorbing cover 31 and blimp outside the power transformer 1 from inside to outside
32, accommodating chamber 5 is provided between the shell of the power transformer 1 and the inwall of the sound-absorbing cover 31, is passed through in the accommodating chamber 5
Flexible link 6 is provided with tuning fork 7.
Further：The vibration absorber 2 has several, is evenly distributed on the bottom of the power transformer 1.
Further：The elastic damping part 22 is in isometrical coil spring shape.
Further：The elastic damping part 22 is in diameter coil spring shape incremented by successively from top to bottom.
Further：The tuning fork 7 has several, and the tuning fork 7 is arranged in the accommodating chamber 5 by flexible link 6, institute
The fixed frequency for stating tuning fork 7 is identical with the vibration frequency that the power transformer 1 is run.
Further：The material of the sound-absorbing cover 31 is aluminium honeycomb perforated sound-absorbing plate, and the sound-absorbing cover 31 passes through rubber adhesive tape 8
Sealing is fixedly installed in the installation pedestal 4.
Further：The blimp 32 is two-layer sound insulating wall structure, between the two-layer sound insulating wall structure of the blimp 32
The air gap is left, the blimp 32 is fixedly installed in the installation pedestal 4 by what rubber adhesive tape 8 sealed.
Further：The inwall of the blimp 32 is roughness.
Further：The outside of the noise reduction unit 3 is provided with protective cover 9.
The utility model belongs to the technical field of power transformer, more particularly to a kind of denoising device of power transformer,
It is removable including the vibration absorber for being arranged on power transformer bottom and the noise reduction unit being enclosed in outside power transformer, vibration absorber
That unloads is arranged in the installation pedestal of power transformer bottom, and vibration absorber includes support column and elastic damping part, support column are solid
Surely it is arranged in installation pedestal, elastic damping part is set in the outer ring of support column, and the upper end of elastic damping part is fixedly installed on electricity
The bottom of power transformer, the lower end of elastic damping part are fixedly installed in installation pedestal, the horizontal level of elastic damping part upper end
Higher than the horizontal level of support column upper end；Noise reduction unit is removably arranged in installation pedestal, and is coated on power transformer
Outer ring, noise reduction unit include being enclosed in the sound-absorbing cover and blimp outside power transformer, the shell of power transformer from inside to outside
Accommodating chamber is provided between the inwall of sound-absorbing cover, accommodating chamber is interior to be provided with tuning fork by flexible link.By setting vibration absorber,
Caused vibration in transformer in operation can be effectively absorbed, is dramatically reduced or even eliminates power transformer fortune
Noise is produced because of vibration during row, Vibration propagation produced by power transformer can be reduced to the intensity on ground, and can
Security and stability when improving transformer work, so that transformer station high-voltage side bus is more steady, safety.Setting includes sound-absorbing
Cover the noise reduction unit with blimp, you can to absorb noise caused by the operation of power transformer, can be made an uproar again by relatively low after absorption
Sound completely cuts off in blimp, and sets tuning fork, and noise is reduced by the resonance with power transformers.There is gap setting using bilayer
Sound insulating wall structure, and blimp is fixed in installation pedestal by rubber adhesive tape sealing, has ensured blimp and installation pedestal
Between sealing, can prevent sound wave from passing, soundproof effect is more preferable.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (9)
1. a kind of denoising device of power transformer, including be arranged on the power transformer (1) bottom vibration absorber (2) and
It is enclosed in the outside noise reduction unit (3) of power transformer (1), it is characterised in that：
The vibration absorber (2) is removably arranged in the installation pedestal (4) of power transformer (1) bottom, the vibration damping dress
Putting (2) includes support column (21) and elastic damping part (22), and the support column (21) is fixedly installed in installation pedestal (4), institute
State elastic damping part (22) and be set in the support column (21) outside, the upper end of the elastic damping part (22) is fixedly installed on described
The bottom of power transformer (1), the lower end of the elastic damping part (22) is fixedly installed in the installation pedestal (4), described
The horizontal level of elastic damping part (22) upper end is higher than the horizontal level of the support column (21) upper end；
The noise reduction unit (3) is removably arranged in installation pedestal (4), and is coated on the power transformer (1) and vibration damping
Device (2) outside, the noise reduction unit (3) include being enclosed in from inside to outside the outside sound-absorbing cover (31) of the power transformer (1) and
Blimp (32), accommodating chamber (5), institute are provided between the shell of the power transformer (1) and the inwall of the sound-absorbing cover (31)
State in accommodating chamber (5) and be provided with tuning fork (7).
A kind of 2. denoising device of power transformer according to claim 1, it is characterised in that：The vibration absorber (2)
There are several, be evenly distributed on the bottom of the power transformer (1).
A kind of 3. denoising device of power transformer according to claim 1, it is characterised in that：The elastic damping part
(22) it is in isometrical coil spring shape.
A kind of 4. denoising device of power transformer according to claim 1, it is characterised in that：The elastic damping part
(22) in diameter coil spring shape incremented by successively from top to bottom.
A kind of 5. denoising device of power transformer according to claim 1, it is characterised in that：The tuning fork (7) is if having
Dry, the tuning fork (7) is arranged in the accommodating chamber (5) by flexible link (6), the fixed frequency of the tuning fork (7) with
The vibration frequency of power transformer (1) operation is identical.
A kind of 6. denoising device of power transformer according to claim 1, it is characterised in that：The sound-absorbing cover (31)
Material is aluminium honeycomb perforated sound-absorbing plate, and the sound-absorbing cover (31) is fixedly installed on the installation by what rubber adhesive tape (8) sealed
On pedestal (4).
A kind of 7. denoising device of power transformer according to claim 1, it is characterised in that：The blimp (32) is
Two-layer sound insulating wall structure, the air gap, the blimp (32) are left between the two-layer sound insulating wall structure of the blimp (32)
It is fixedly installed on by what rubber adhesive tape (8) sealed in the installation pedestal (4).
A kind of 8. denoising device of power transformer according to claim 1, it is characterised in that：The blimp (32)
Inwall is roughness.
A kind of 9. denoising device of power transformer according to claim 1-8 any one, it is characterised in that：The drop
The make an uproar outside in portion (3) is provided with protective cover (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720680025.XU CN206774361U (en) | 2017-06-09 | 2017-06-09 | A kind of denoising device of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720680025.XU CN206774361U (en) | 2017-06-09 | 2017-06-09 | A kind of denoising device of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206774361U true CN206774361U (en) | 2017-12-19 |
Family
ID=60636805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720680025.XU Expired - Fee Related CN206774361U (en) | 2017-06-09 | 2017-06-09 | A kind of denoising device of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206774361U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389683A (en) * | 2017-12-26 | 2018-08-10 | 铜陵日科电子有限责任公司 | A kind of sound-absorbing transformer case |
| CN110070980A (en) * | 2019-05-17 | 2019-07-30 | 沈阳工业大学 | A kind of transformer damped noise reduction device and its installation method |
| CN112071293A (en) * | 2019-05-24 | 2020-12-11 | 无锡小天鹅电器有限公司 | Sound insulation assembly and clothes treatment device |
| CN112763869A (en) * | 2020-12-26 | 2021-05-07 | 扬州市达晨电气设备有限公司 | High-voltage equipment test discharge frame structure and use method thereof |
| CN113066649A (en) * | 2021-03-31 | 2021-07-02 | 国网湖南省电力有限公司 | Low-noise oil-immersed transformer |
-
2017
- 2017-06-09 CN CN201720680025.XU patent/CN206774361U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389683A (en) * | 2017-12-26 | 2018-08-10 | 铜陵日科电子有限责任公司 | A kind of sound-absorbing transformer case |
| CN110070980A (en) * | 2019-05-17 | 2019-07-30 | 沈阳工业大学 | A kind of transformer damped noise reduction device and its installation method |
| CN112071293A (en) * | 2019-05-24 | 2020-12-11 | 无锡小天鹅电器有限公司 | Sound insulation assembly and clothes treatment device |
| CN112763869A (en) * | 2020-12-26 | 2021-05-07 | 扬州市达晨电气设备有限公司 | High-voltage equipment test discharge frame structure and use method thereof |
| CN113066649A (en) * | 2021-03-31 | 2021-07-02 | 国网湖南省电力有限公司 | Low-noise oil-immersed 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: 20171219 Termination date: 20180609 |