CN103258628A - Noise reduction system of power transformer - Google Patents
Noise reduction system of power transformer Download PDFInfo
- Publication number
- CN103258628A CN103258628A CN2013102142290A CN201310214229A CN103258628A CN 103258628 A CN103258628 A CN 103258628A CN 2013102142290 A CN2013102142290 A CN 2013102142290A CN 201310214229 A CN201310214229 A CN 201310214229A CN 103258628 A CN103258628 A CN 103258628A
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- noise
- noise reduction
- cellar
- reduction system
- guide tube
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- 230000009467 reduction Effects 0.000 title claims abstract description 20
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 10
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention provides a noise reduction system of a power transformer. The noise reduction system of the power transformer comprises an outer shell which surrounds the transformer, wherein a noise leading pipe is led from the outer shell, and the noise leading pipe is communicated into a cellar. Preferentially, tuning forks are distributed in the noise leading pipe at internal along the pipeline axis, and the natural frequency of each tuning fork is 50HZ. The noise reduction system of the power transformer can eliminate noise of the transformer to a large extent, and improves the living environment of residents nearby the transformer.
Description
Technical field
The present invention relates to the electric power facility field, especially, relate to a kind of transformer noise reduction system.
Background technology
Power transformer is a kind of infrastructure device of electric power facility, generally adopts appendiron core transformer, and its power is very big.Because appendiron core transformer obtains the transformation effect by alternating magnetic field, and the iron core of transformer is piled up by silicon steel sheet and forms, therefore, when the magnetic field in the iron core during with the frequency alternation of 50HZ, silicon steel sheet is because magnetostrictive effect, will be with the frequency generation continuous shaking of 50HZ, thus an overcast noise produced, and this noise has a strong impact on transformer periphery resident's daily life.
For this problem, present method is by the sound absorbing power that improves the insulation material between the silicon steel sheet and improve transformer shell, reduces noise as much as possible; Yet the restriction of current material and technology has been received in the improvement of this respect, can not obtain superior effect all the time, and at present, near the noise the transformer is still very big, is seriously perplexing the resident.
Summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of power transformer noise reduction system, this system is the eliminating transformer noise to a great extent, improves near the resident's of transformer living environment.
The technical scheme that technical solution problem of the present invention is taked is: this system comprises the shell of an encirclement transformer, and described shell is drawn a sound guide tube, and described sound guide tube feeds a cellar.
As preferably, equidistantly lay tuning fork along conduit axis in the described sound guide tube, the natural frequency of described tuning fork is 50HZ.
As preferably, the spatial volume of described cellar is at more than 10 times of described enclosure volume.
As preferably, described shell, sound guide tube inwall are equipped with the noise reduction cotton.
As preferably, any one inner surface of the Way out of described sound guide tube and described cellar tilts, and this makes the noise of discharging from the sound guide tube outlet no longer by direct reflected back guide wire, has significantly increased the order of reflection of noise in the cellar.
As preferably, the bottom surface of described cellar is uneven, thereby a large amount of reflectings surface can be provided for the noise of all directions.
As preferably, layer of fine sand is laid in the bottom surface at least in described cellar, because the fine sand that piles up has a large amount of gap structures, therefore, so the cost that laying can be extremely low obtains the good sound absorption effect.
Beneficial effect of the present invention: by the connection of sound guide tube, make the transformer noise of described enclosure be imported in the cellar by sound guide tube, because the volume of cellar is much larger than the volume of described shell, therefore, the reflection on a large scale of noise will be carried out in the cellar, thereby make most noise energy losses in the cellar, and an only remaining a spot of noise energy is in the described shell, therefore, the noise of propagating to the external world through shell has obtained significantly reducing.
Description of drawings
Fig. 1 is the schematic diagram of an embodiment of this power transformer noise reduction system.
Embodiment
The present invention is further described below in conjunction with drawings and Examples:
In the embodiment shown in fig. 1, comprise the shell 2 of an encirclement transformer 1, described shell 2 is drawn a sound guide tube 3, and described sound guide tube 3 feeds a cellar 4.
Because described sound guide tube 3 has been communicated with shell 2 and cellar 4, therefore, at the noise of shell 2 inside whenever being reflected onto sound guide tube 3 places, just will be imported into cellar 4 along sound guide tube 3, and do not reflex to the noise at sound guide tube 3 places, repeatedly reflection by shell 2 inwalls finally also will be reflected onto sound guide tube 3, and finally import in the cellar 4; Certainly, imported the noise in the described cellar 4, also might be by reflection, again lead back shell 2 along sound guide tube 3, but because the mouth of pipe of sound guide tube 3 is with respect to each wall of cellar, size is very limited, therefore, will be reflected into sound guide tube 3 again in cellar 4 from noise, its probability is very little, generally speaking, from the noise of shell 2 by sound guide tube 3 importing cellars 4, all can in cellar 4, run out through a large amount of reflections basically.
In addition, in the present embodiment, also in sound guide tube 3, arranged a large amount of tuning fork 5 along conduit axis, the natural frequency of tuning fork is identical with frequency noise, be 50HZ, this makes sound guide tube 3 not only possess good leading note effect, and has possessed splendid erasure effect; Its reason is: for the noise that flows in shell 2 in the cellar 4, because the resonance effects of tuning fork 5 with a large amount of noise energy of fast Absorption (change into vibrational energy, and finally be converted into heat energy), does not flow to cellar 4 and do not influence remaining noise energy; For 4 noises that flow to shell 2 from the cellar, tuning fork 5 will absorb big energy equally; This shows because the laying of tuning fork 5, can make noise from shell 2 to the cellar 4,, be consumed in a large number 2 the round way from cellar 4 to shell again, to such an extent as to make the noise in the cellar 4 almost can't be reflected back toward shell 2 again.What can be used as comparison is, if fill in the noise reduction cotton in a large number in sound guide tube 3, then the sound-absorbing effect of sound guide tube 3 significantly improves, and but can't play the leading note effect, a large amount of do not have the noise that is absorbed by the noise reduction cotton can't enter cellar 4 again, and will be by the cotton reflected back shell 2. of noise reduction
Because the spatial volume that is communicated with sound guide tube 3 is more big, noise reflex time each time in this space then, the probability that is reflected back toward sound guide tube 3 is just more low; Therefore, if it is P2 that the noise in the cellar 4 is reflected into the probability of sound guide tube 3, be P1 and the noise in the shell 2 is reflected into the probability of sound guide tube 3, in order to make P2 much smaller than P1, then must make the spatial volume of cellar much larger than enclosure volume, usually, can make the spatial volume of described cellar 4 at more than 10 times of described shell 2 volumes.
In addition, described shell 2, sound guide tube 3 inwalls all can be laid the noise reduction cotton.
The bottom surface of described cellar 4 is uneven, thereby a large amount of reflectings surface can be provided for the noise of all directions.Layer of fine sand is laid in the bottom surface at least in described cellar 4, because the fine sand that piles up has a large amount of gap structures, therefore, so the cost that laying can be extremely low obtains the good sound absorption effect.
The above only is preferred mode of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. power transformer noise reduction system comprises the shell (2) of an encirclement transformer (1), and it is characterized in that: described shell is drawn a sound guide tube (3), and described sound guide tube feeds a cellar (4).
2. power transformer noise reduction system according to claim 1 is characterized in that: equidistantly lays tuning fork (5) along conduit axis in the described sound guide tube (3), the natural frequency of described tuning fork (5) is 50HZ.
3. power transformer noise reduction system according to claim 1, it is characterized in that: the spatial volume of described cellar (4) is at more than 10 times of described shell (2) volume.
4. according to any described power transformer noise reduction system in the claim 1 to 3, it is characterized in that: described shell (2), sound guide tube (3) inwall are equipped with the noise reduction cotton.
5. power transformer noise reduction system according to claim 1, it is characterized in that: the bottom surface of described cellar (4) is uneven.
6. power transformer noise reduction system according to claim 1 or 5, it is characterized in that: described cellar (4) lay layer of fine sand in the bottom surface at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310214229.0A CN103258628B (en) | 2013-06-03 | 2013-06-03 | Noise reduction system of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310214229.0A CN103258628B (en) | 2013-06-03 | 2013-06-03 | Noise reduction system of power transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103258628A true CN103258628A (en) | 2013-08-21 |
| CN103258628B CN103258628B (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310214229.0A Expired - Fee Related CN103258628B (en) | 2013-06-03 | 2013-06-03 | Noise reduction system of power transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981285A (en) * | 2017-03-28 | 2017-07-25 | 联想(北京)有限公司 | A kind of noise-reduction method and robot system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56140683A (en) * | 1980-04-04 | 1981-11-04 | Nec Corp | Piezoelectric transformer |
| CN200990272Y (en) * | 2006-12-27 | 2007-12-12 | 浙江江山变压器有限公司 | Dry transformer sound absorption shell |
| CN201222394Y (en) * | 2008-06-30 | 2009-04-15 | 广州广高高压电器有限公司 | Denoise case for dry transformer |
| CN201616322U (en) * | 2010-03-16 | 2010-10-27 | 天威保变(合肥)变压器有限公司 | Noise-reducing oil tank for power transformer |
| CN202678038U (en) * | 2012-07-09 | 2013-01-16 | 福建省电力有限公司电力科学研究院 | Box-type low noise magnetically controlled reactor |
| CN202888691U (en) * | 2012-10-29 | 2013-04-17 | 南京乾鑫电器设备有限公司 | Buried high-capacity prefabricated substation |
-
2013
- 2013-06-03 CN CN201310214229.0A patent/CN103258628B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56140683A (en) * | 1980-04-04 | 1981-11-04 | Nec Corp | Piezoelectric transformer |
| CN200990272Y (en) * | 2006-12-27 | 2007-12-12 | 浙江江山变压器有限公司 | Dry transformer sound absorption shell |
| CN201222394Y (en) * | 2008-06-30 | 2009-04-15 | 广州广高高压电器有限公司 | Denoise case for dry transformer |
| CN201616322U (en) * | 2010-03-16 | 2010-10-27 | 天威保变(合肥)变压器有限公司 | Noise-reducing oil tank for power transformer |
| CN202678038U (en) * | 2012-07-09 | 2013-01-16 | 福建省电力有限公司电力科学研究院 | Box-type low noise magnetically controlled reactor |
| CN202888691U (en) * | 2012-10-29 | 2013-04-17 | 南京乾鑫电器设备有限公司 | Buried high-capacity prefabricated substation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981285A (en) * | 2017-03-28 | 2017-07-25 | 联想(北京)有限公司 | A kind of noise-reduction method and robot system |
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| Publication number | Publication date |
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| CN103258628B (en) | 2016-01-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yingquan Inventor after: Wang Fengtao Inventor after: Ma Haixu Inventor after: Dang Xiao Inventor after: Sun Qingzhen Inventor before: Ma Renhuan |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151124 Address after: Bole City, 833499 the Xinjiang Uygur Autonomous Region Mongolia Autonomous Prefecture Bortala Unicom Road No. 82 Applicant after: Bortala electric company of Guo Wang Xinjiang power company Applicant after: State Grid Corporation of China Address before: 628, room 1, Shunda Commercial Plaza, Suzhou Industrial Park, Jiangsu, 215000 Applicant before: Suzhou Qizhi Electromechanical Technology Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20160603 |