CN204680507U - The noise reduction mounting structure of dry-type transformer - Google Patents
The noise reduction mounting structure of dry-type transformer Download PDFInfo
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- CN204680507U CN204680507U CN201520047362.6U CN201520047362U CN204680507U CN 204680507 U CN204680507 U CN 204680507U CN 201520047362 U CN201520047362 U CN 201520047362U CN 204680507 U CN204680507 U CN 204680507U
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- type transformer
- dry
- vibration damping
- damping beam
- ground
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Abstract
The noise reduction mounting structure of dry-type transformer, it mainly comprise an installation on the ground, the dry-type transformer to be connected by busbar with low-voltage cabinet, the bottom of described dry-type transformer is connected with the concrete foundation that ground is arranged by least installing four vibration isolators thus fixedly mounts on the ground; The winding of described dry-type transformer is connected for being flexible coupling with the busbar of low-voltage cabinet; The bottom of described dry-type transformer is provided with six vibration isolators and is distributed on the ground on ground, and described vibration isolator each strong point is after mounting positioned at same level height; Described dry-type transformer is arranged on the vibration damping beam by channel-section steel formation by bracing frame; Described vibration isolator is installed with under described vibration damping beam; It is simple that it has structure, easy to install and use, can obtain better effect of vibration and noise reduction, improve the features such as people's living environment.
Description
Technical field
The utility model relates to a kind of noise reduction mounting structure of dry-type transformer, belong to the mounting technique field of transformer.
Background technology
Electric power dry transformer is the novel transformer of a kind of safety, energy-saving and environmental protection, is mainly used in rise residential, office building, hospital, contour shunting yard institute of hotel.Along with the continuous propelling of Chinese Urbanization, dry-type transformer is also widely used thereupon, the continuous increase of dry-type transformer number of applications and the operation time limit, constantly has the dry-type transformer vibrating noise situation that disturbs residents to produce successively.Along with the raising that people require living environment, the existence of transformer noise has a strong impact on the harmony of society.
The electromagnetic noise of dry-type transformer belongs to mechanical noise after deliberation, it is that alternating magnetic field produces iron core and the coil generation vibration that periodically alternation active force causes, the outside radiated noise of iron core (silicon steel sheet) coil of vibration, its dominant frequency depends on ac frequency, but due in energising dry-type transformer, under the eddy current effect of wire, core interior, the noise that its noise radiated produces more than single-frequency vibrations is much complicated.
The route of transmission of usual noise is divided into two classes: one is the Spreading and diffusion of noise by air, and constantly decay in dry-type transformer Spreading and diffusion process, energy density constantly reduces.Two is noise Spreading and diffusion by solid, Spreading and diffusion in beam column and floor construction, and energy density also decreases, but reduces little.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art existence, and provides a kind of structure simple, easy to install and use, can obtain better effect of vibration and noise reduction, improve the noise reduction mounting structure of the dry-type transformer of people's living environment.
The purpose of this utility model has been come by following technical solution, the noise reduction mounting structure of described a kind of dry-type transformer, it mainly comprise an installation on the ground, the dry-type transformer to be connected by busbar with low-voltage cabinet, the bottom of described dry-type transformer is connected with the concrete foundation that ground is arranged by least installing four vibration isolators thus fixedly mounts on the ground; The winding of described dry-type transformer is connected for being flexible coupling with the busbar of low-voltage cabinet.
The bottom of described dry-type transformer is provided with six vibration isolators and is distributed on the ground on ground, and described vibration isolator each strong point is after mounting positioned at same level height; Described dry-type transformer is arranged on the vibration damping beam by channel-section steel formation by bracing frame; Described vibration isolator is installed with under described vibration damping beam.
Described vibration damping beam comprises upper strata vibration damping beam and lower floor's vibration damping beam, and the channel-section steel forming upper strata vibration damping beam is connected with the mutual vertical interlaced of channel-section steel forming lower floor's vibration damping beam; Described dry-type transformer is arranged on the vibration damping beam of upper strata by bracing frame, and described vibration isolator is fixedly mounted on lower floor's vibration damping beam.
The top of described vibration isolator is withstood on by the first rubber blanket on the channel-section steel lower surface of lower floor's vibration damping beam, and the bottom of described vibration isolator contacts with the 3rd rubber blanket through the second rubber blanket, is gripped with a base steel plates therebetween; The channel-section steel of described upper strata vibration damping beam laterally offers lightening hole.
The utility model belongs to the improvement to prior art, and it is simple that it has structure, easy to install and use, can obtain better effect of vibration and noise reduction, improve the features such as people's living environment.
Accompanying drawing explanation
Fig. 1 is noise reduction mounting structure schematic diagram described in the utility model.
Fig. 2 is dry-type transformer mounting structure schematic diagram described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Fig. 1,2, the noise reduction mounting structure of a kind of dry-type transformer described in the utility model, it mainly comprise an installation on the ground, the dry-type transformer 9 to be connected by busbar with low-voltage cabinet, the bottom of described dry-type transformer 9 is connected with the concrete foundation that ground is arranged by least installing four vibration isolators 3 thus fixedly mounts on the ground; The described winding of dry-type transformer 9 is connected for being flexible coupling with the busbar of low-voltage cabinet.
Shown in figure, the bottom of described dry-type transformer 9 is provided with six vibration isolators 3 and is distributed on the ground on ground, and described vibration isolator 3 each strong point is after mounting positioned at same level height; Described dry-type transformer 9 is arranged on the vibration damping beam by channel-section steel formation by bracing frame; Described vibration isolator 3 is installed with under described vibration damping beam.
The further embodiment of the utility model is: described vibration damping beam comprises upper strata vibration damping beam 1 and lower floor's vibration damping beam 2, and the channel-section steel forming upper strata vibration damping beam 1 is connected with the mutual vertical interlaced of channel-section steel forming lower floor's vibration damping beam 2; Described dry-type transformer 9 is arranged on upper strata vibration damping beam 1 by bracing frame, and described vibration isolator 3 is fixedly mounted on lower floor's vibration damping beam 2.
Shown in Fig. 2, the top of described vibration isolator 3 is withstood on by the first rubber blanket 4 on the channel-section steel lower surface of lower floor's vibration damping beam 2, and the bottom of described vibration isolator 3 contacts with the 3rd rubber blanket 6 through the second rubber blanket 5, is gripped with a base steel plates 7 therebetween; The channel-section steel of described upper strata vibration damping beam 1 laterally offers lightening hole 8.
Embodiment:
The utility model mainly installs vibration isolator additional in dry-type transformer bottom, the model that described dry-type transformer is chosen as the production of special power transformation work transformer Co., Ltd is SCBH15-1250/10, weight 4070KG, considers transformer busbar weight, and overall weight is about 4200KG.The excited frequency of this dry-type transformer is about 100 hertz.Select the vibration isolator of LA-1250 model accordingly, the optimal load of LA-1250 vibration isolator is 700KG load scope is (500-1100) KG, and under best load, natural frequency is 3.7 hertz; In vibration absorber, vibration isolator selects 6 altogether.
The vibration isolation mode on dry-type transformer and ground adopts and is placed on vibration absorber by dry-type transformer entirety, makes it thoroughly isolated with ground.
Dry-type transformer almost symmetry all around itself, but the busbar that transformer is connected with low-voltage cabinet causes before and after transformer asymmetric, symmetrical.Transformer has channel-section steel and is connected with basis, and channel-section steel direction is vertical with coils arrangement direction.With jack by padded for transformer belt protecting sheathing entirety.
in addition during vibration isolator in-site installation because of note some:
(1) load-bearing of each vibration isolator is impartial, because before and after transformer, distribution of weight is uneven, therefore will find transformer position of centre of gravity accurately, ensure that each unit shock absorbers compression amount is substantially identical.
(2) ensure integrally-built stability, adopt channel-section steel that each vibration isolator is connected into junior unit, can stability be increased.
(3) basis of mounting dampers must be smooth, require vibration isolator after mounting each strong point be positioned at same level height.
(4) on-the-spot distribution indoor construction cannot use lifting machine, and use jack only, transformer lifts limited height, and former channel-section steel need not be removed, and interruption duration is unsuitable long.
Claims (4)
1. the noise reduction mounting structure of dry-type transformer, it mainly comprise an installation on the ground, the dry-type transformer to be connected by busbar with low-voltage cabinet, it is characterized in that the bottom of described dry-type transformer is connected with the concrete foundation that ground is arranged by least installing four vibration isolators thus fixedly mounts on the ground; The winding of described dry-type transformer is connected for being flexible coupling with the busbar of low-voltage cabinet.
2. the noise reduction mounting structure of dry-type transformer according to claim 1, it is characterized in that the bottom of described dry-type transformer is provided with six vibration isolators and is distributed on the ground on ground, and described vibration isolator each strong point is after mounting positioned at same level height; Described dry-type transformer is arranged on the vibration damping beam by channel-section steel formation by bracing frame; Described vibration isolator is installed with under described vibration damping beam.
3. the noise reduction mounting structure of dry-type transformer according to claim 2, is characterized in that described vibration damping beam comprises upper strata vibration damping beam and lower floor's vibration damping beam, and the channel-section steel forming upper strata vibration damping beam is connected with the mutual vertical interlaced of channel-section steel forming lower floor's vibration damping beam; Described dry-type transformer is arranged on the vibration damping beam of upper strata by bracing frame, and described vibration isolator is fixedly mounted on lower floor's vibration damping beam.
4. the noise reduction mounting structure of dry-type transformer according to claim 3, it is characterized in that the top of described vibration isolator withstands on the channel-section steel lower surface of lower floor's vibration damping beam by the first rubber blanket, the bottom of described vibration isolator contacts with the 3rd rubber blanket through the second rubber blanket, is gripped with a base steel plates therebetween; The channel-section steel of described upper strata vibration damping beam laterally offers lightening hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047362.6U CN204680507U (en) | 2015-01-23 | 2015-01-23 | The noise reduction mounting structure of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047362.6U CN204680507U (en) | 2015-01-23 | 2015-01-23 | The noise reduction mounting structure of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204680507U true CN204680507U (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520047362.6U Expired - Fee Related CN204680507U (en) | 2015-01-23 | 2015-01-23 | The noise reduction mounting structure of dry-type transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204680507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599815A (en) * | 2015-01-23 | 2015-05-06 | 国网浙江省电力公司嘉兴供电公司 | Noise-reducing installation structure for dry-type transformer |
-
2015
- 2015-01-23 CN CN201520047362.6U patent/CN204680507U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599815A (en) * | 2015-01-23 | 2015-05-06 | 国网浙江省电力公司嘉兴供电公司 | Noise-reducing installation structure for dry-type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Jingwei Inventor after: Chen Jia Inventor after: Huang Zhigang Inventor after: He Yangqing Inventor after: Wei Bo Inventor after: Zhang Kunpeng Inventor after: Jiang Peng Inventor after: Chang Linjie Inventor before: Yang Jingwei Inventor before: Chen Jia Inventor before: Huang Zhigang Inventor before: He Yangqing Inventor before: Wei Bo Inventor before: Zhang Kunpeng Inventor before: Jiang Peng Inventor before: Chang Linjie |
|
| 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: 20150930 Termination date: 20210123 |