CN219329161U - Vibration isolation device of transformer - Google Patents
Vibration isolation device of transformer Download PDFInfo
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- CN219329161U CN219329161U CN202320410358.6U CN202320410358U CN219329161U CN 219329161 U CN219329161 U CN 219329161U CN 202320410358 U CN202320410358 U CN 202320410358U CN 219329161 U CN219329161 U CN 219329161U
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- vibration isolation
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- isolator
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Abstract
The utility model discloses a vibration isolation device of a transformer, which comprises a vibration isolation device and a noise prevention device, wherein the vibration isolation device and the noise prevention device are matched for vibration isolation and noise reduction of the transformer in earthquake, a first magnetic block and a second magnetic block are respectively arranged at the top end and the bottom end inside the magnetorheological elastomer vibration isolator, the current in an exciting coil of the magnetorheological elastomer vibration isolator is regulated by a controller to achieve the effect of enhancing or weakening a magnetic field, so that the rigidity and the damping of the magnetorheological elastomer vibration isolator are enhanced or reduced, the rigidity and the damping of the magnetorheological elastomer vibration isolator are correspondingly regulated according to an acceleration sensor in real time according to an earthquake signal, the optimal earthquake vibration isolation effect is achieved, the damage of the earthquake to the transformer is reduced, and the device reduces the working noise of the transformer while guaranteeing the support of sufficient static rigidity of the transformer.
Description
Technical Field
The utility model belongs to the technical field of vibration isolation equipment of power transformers, and particularly relates to a vibration isolation device of a transformer.
Background
The electric energy is the basis of modern society production and life, china has rich water energy and coal resources, but the power generation energy distribution and productivity development are reversely distributed on the whole, the electric energy needs to flow in a large scale across regions, and the ultra-high voltage transmission is a more effective transmission mode aiming at the electric power transmission characteristics of China and is built in a large scale in recent years.
In China, which is a country with frequent earthquakes, the paralysis of the electric power system caused by the earthquakes can influence the normal life and post-disaster rescue work of people in a large area, and according to statistics, the transformer damage is the most frequent type in the damage of the electric power system equipment under the earthquakes, and at present, the corresponding vibration absorption and vibration isolation technology is mostly adopted to reduce the earthquake response of the equipment, so that the influence of the earthquakes on the transformer equipment can be effectively reduced.
In the prior art, the design of transformer vibration isolation equipment is mostly spring structure, connecting rod structure, rubber pad structure etc. or is the complex of two kinds and above structures, and the shortcoming is that rigidity, the damping of system are not adjustable, only can play vibration isolation to specific frequency, frequency channel earthquake, can't adapt to the earthquake of different intensity, increased the damage degree to the transformer when taking place the earthquake, the transformer produces the noise because of vibration in the course of working simultaneously, can effectively reduce the noise that the transformer produced through the rubber pad vibration isolation among the prior art, but traditional rubber pad can't provide sufficient static rigidity and support the transformer.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a vibration isolation device of a transformer, so as to solve the technical problems that the rigidity and damping of vibration isolation equipment of the transformer in the prior art are not adjustable and cannot adapt to earthquakes with different intensities, and a traditional rubber pad cannot provide enough static rigidity to support the transformer.
The utility model solves the technical problems by adopting the following technical scheme:
the utility model provides a vibration isolation device of a transformer, which comprises a vibration isolation device and a noise prevention device, wherein the noise prevention device is arranged at the top end of the vibration isolation device, the vibration isolation device and the noise prevention device are matched for vibration isolation and noise reduction of the transformer during earthquake,
the vibration isolation device comprises a vibration isolation base, a vibration isolation outer sleeve, a magneto-rheological elastomer vibration isolator and a vibration isolation supporting plate, wherein the vibration isolation outer sleeve is arranged at the top end of the vibration isolation base, the magneto-rheological elastomer vibration isolator is sleeved in the vibration isolation outer sleeve, the vibration isolation supporting plate is arranged at the top end of the magneto-rheological elastomer vibration isolator, the bottom end of the vibration isolation base is arranged on a foundation or an objective table,
the vibration isolator comprises a magnetorheological elastomer vibration isolator, wherein a first magnetic block and a second magnetic block are respectively arranged at the top end and the bottom end of the interior of the magnetorheological elastomer vibration isolator, an acceleration sensor is arranged on a vibration isolation base or on the outer wall of a vibration isolation outer sleeve, the acceleration sensor is provided with a controller, the controller is respectively connected with the acceleration sensor and an excitation coil of the magnetorheological elastomer vibration isolator, the acceleration sensor is used for collecting seismic signals in real time and transmitting the seismic signals to the controller, the controller is used for adjusting the current in the excitation coil of the magnetorheological elastomer vibration isolator, and the first magnetic block, the second magnetic block and the excitation coil of the magnetorheological elastomer vibration isolator are matched for bidirectionally adjusting the rigidity and the damping of the magnetorheological elastomer vibration isolator, so that the vibration isolator has vibration isolation effect on multiple frequency and frequency band earthquakes;
preferably, the noise preventing device comprises a noise preventing plate, the noise preventing plate is of a T-shaped structure, the bottom end of the noise preventing plate is in contact with the top end of the vibration isolating supporting plate, a rubber shock absorbing block is arranged on the outer wall of the middle lower portion of the noise preventing plate, a vibration isolating cover plate is arranged between the rubber shock absorbing block and the vibration isolating outer sleeve, and the top end of the noise preventing plate is used for placing a transformer.
The beneficial effects of the utility model are as follows:
compared with the prior art, the vibration isolation device of the transformer comprises the vibration isolation device and the noise prevention device, wherein the noise prevention device is arranged at the top end of the vibration isolation device, the vibration isolation device and the noise prevention device are matched to be used for vibration isolation and noise reduction of the transformer in an earthquake, the top end and the bottom end in the magnetorheological elastomer vibration isolator are respectively provided with a first magnetic block and a second magnetic block, the current in an exciting coil of the magnetorheological elastomer vibration isolator is regulated by the controller, the effect of enhancing or weakening a magnetic field is achieved, the rigidity and the damping of the magnetorheological elastomer vibration isolator are increased or reduced, the rigidity and the damping of the magnetorheological elastomer vibration isolator are correspondingly regulated according to the seismic signals acquired by the acceleration sensor in real time, the optimal earthquake vibration isolation effect is achieved, and the damage of the earthquake to the transformer is reduced.
The rubber damping blocks are arranged on the outer wall of the middle lower part of the noise-proof plate, so that the working noise of the transformer is reduced while the support of the transformer for enough static rigidity is ensured.
Drawings
Fig. 1 is a schematic diagram of the overall connection structure of a vibration isolation device of a transformer according to the present utility model;
in the figure: 1. an anti-noise plate; 2. a rubber shock-absorbing block; 3. a vibration isolation cover plate; 4. a vibration isolation support plate; 5. magnetorheological elastomer vibration isolators; 7. an outer vibration isolation sleeve; 9. a first magnetic block; 11. a second magnetic block; 12. an acceleration sensor; 13. a controller; 15. and a vibration isolation base.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The utility model provides a vibration isolation device of a transformer, as shown in figure 1, comprising a vibration isolation device and a noise prevention device, wherein the noise prevention device is arranged at the top end of the vibration isolation device, the vibration isolation device and the noise prevention device are matched for vibration isolation and noise reduction of the transformer during earthquake,
the vibration isolation device comprises a vibration isolation base 15, a vibration isolation outer sleeve 7, a magneto-rheological elastomer vibration isolator 5 and a vibration isolation supporting plate 4, wherein the vibration isolation outer sleeve 7 is arranged at the top end of the vibration isolation base 15, the magneto-rheological elastomer vibration isolator 5 is sleeved in the vibration isolation outer sleeve 7, the vibration isolation supporting plate 4 is arranged at the top end of the magneto-rheological elastomer vibration isolator 5, the bottom end of the vibration isolation base 15 is arranged on a foundation or an objective table,
the inside top and the bottom of magnetorheological elastomer isolator 5 are provided with first magnetic path 9 and second magnetic path 11 respectively, be provided with acceleration sensor 12 on the vibration isolation base 15 or on the outer wall of vibration isolation sleeve 7, acceleration sensor 12 is furnished with controller 13, controller 13 respectively with acceleration sensor 12 with the excitation coil of magnetorheological elastomer isolator 5 is connected, acceleration sensor 12 is used for gathering the seismic signal in real time and transmits to controller 13, controller 13 is used for adjusting the electric current size in the excitation coil of magnetorheological elastomer isolator 5, first magnetic path 9, second magnetic path 11 with the cooperation of the excitation coil of magnetorheological elastomer isolator 5 is used for two-way regulation the rigidity and the damping of magnetorheological elastomer isolator 5 to reach the effect of vibration isolation to the multiple frequency, frequency channel earthquake.
In this embodiment, noise control device includes noise control board 1, noise control board 1 is T style of calligraphy structure, noise control board 1's bottom with vibration isolation backup pad 4's top contact, be provided with rubber snubber block 2 on the outer wall of noise control board 1's well lower part, rubber snubber block 2 with be provided with vibration isolation apron 3 between the vibration isolation outer sleeve 7, noise control board 1's top is used for placing the transformer.
Working principle:
in the normal working state of the transformer, the first magnetic block 9 and the second magnetic block 11 provide magnetic fields to ensure that the magnetorheological elastomer vibration isolator 5 has certain rigidity, so that the problem of uncontrollable heating caused by long-term working of the coil can be effectively avoided, the energy waste is reduced, and simultaneously, the noise-proof plate 1 and the vibration isolation supporting plate 4 are matched to support the transformer,
in the earthquake state, the acceleration sensor 12 collects the earthquake signal, the controller 13 outputs the current to the exciting coil of the magnetorheological elastomer vibration isolator 5 to generate the magnetic field, the generated magnetic field is overlapped with the magnetic fields of the first magnetic block 9 and the second magnetic block 11, the current in the exciting coil of the magnetorheological elastomer vibration isolator 5 is regulated by the controller 13, the effect of enhancing or weakening the magnetic field is achieved, the rigidity and the damping of the magnetorheological elastomer vibration isolator 5 are enhanced or reduced, and the rigidity and the damping of the magnetorheological elastomer vibration isolator 5 are correspondingly regulated according to the earthquake signal collected by the acceleration sensor 12 in real time, so that the optimal earthquake vibration isolation effect is achieved.
In the working process of the transformer, because the vibration of the transformer iron core and the winding can generate noise, the vibration can be transmitted through paths such as a foundation and a bracket to cause radiation noise, the vibration generated in the working process of the transformer is transmitted to the rubber damping block 2 through the noise-proof plate 1, and the rubber damping block 2 is used for carrying out vibration isolation on high-frequency vibration generated in the working process of the transformer, so that the effect of reducing the noise is achieved.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (2)
1. The utility model provides a vibration isolation device of transformer which characterized in that: comprises a vibration isolation device and a noise prevention device, wherein the noise prevention device is arranged at the top end of the vibration isolation device, the vibration isolation device and the noise prevention device are matched for vibration isolation and noise reduction of a transformer during earthquake,
the vibration isolation device comprises a vibration isolation base, a vibration isolation outer sleeve, a magneto-rheological elastomer vibration isolator and a vibration isolation supporting plate, wherein the vibration isolation outer sleeve is arranged at the top end of the vibration isolation base, the magneto-rheological elastomer vibration isolator is sleeved in the vibration isolation outer sleeve, the vibration isolation supporting plate is arranged at the top end of the magneto-rheological elastomer vibration isolator, the bottom end of the vibration isolation base is arranged on a foundation or an objective table,
the vibration isolator is characterized in that a first magnetic block and a second magnetic block are respectively arranged at the top end and the bottom end of the inside of the magnetorheological elastomer vibration isolator, an acceleration sensor is arranged on the vibration isolation base or on the outer wall of the vibration isolation outer sleeve, the acceleration sensor is provided with a controller, the controller is respectively connected with the acceleration sensor and an exciting coil of the magnetorheological elastomer vibration isolator, the acceleration sensor is used for collecting seismic signals in real time and transmitting the seismic signals to the controller, the controller is used for adjusting the current size in the exciting coil of the magnetorheological elastomer vibration isolator, and the first magnetic block, the second magnetic block and the matching of the exciting coil of the magnetorheological elastomer vibration isolator are used for bidirectionally adjusting the rigidity and the damping of the magnetorheological elastomer vibration isolator, so that the vibration isolator vibration isolation effect on multiple frequency and frequency band earthquakes is achieved.
2. The vibration isolation device of a transformer according to claim 1, wherein: the anti-noise device comprises an anti-noise plate, the anti-noise plate is of a T-shaped structure, the bottom end of the anti-noise plate is in contact with the top end of the vibration isolation supporting plate, a rubber shock-absorbing block is arranged on the outer wall of the middle lower portion of the anti-noise plate, a vibration isolation cover plate is arranged between the rubber shock-absorbing block and the vibration isolation outer sleeve, and the top end of the anti-noise plate is used for placing a transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320410358.6U CN219329161U (en) | 2023-03-07 | 2023-03-07 | Vibration isolation device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320410358.6U CN219329161U (en) | 2023-03-07 | 2023-03-07 | Vibration isolation device of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219329161U true CN219329161U (en) | 2023-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320410358.6U Active CN219329161U (en) | 2023-03-07 | 2023-03-07 | Vibration isolation device of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219329161U (en) |
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2023
- 2023-03-07 CN CN202320410358.6U patent/CN219329161U/en active Active
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