CN103440969A - Device for decreasing noise emission of power transformers and method thereof - Google Patents
Device for decreasing noise emission of power transformers and method thereof Download PDFInfo
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- CN103440969A CN103440969A CN2013103439961A CN201310343996A CN103440969A CN 103440969 A CN103440969 A CN 103440969A CN 2013103439961 A CN2013103439961 A CN 2013103439961A CN 201310343996 A CN201310343996 A CN 201310343996A CN 103440969 A CN103440969 A CN 103440969A
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Abstract
The invention relates to a technique of decreasing the noise of transformers in transformer stations, in particular to a device for decreasing the noise emission of power transformers and a method thereof. The device comprises an elastic part (2) and a solid metal ball (3), the elastic part (2) is fixed on the surface of a transformer (1), and the solid metal ball (3) is fixed on the end of the elastic part (2). The device can convert the kinetic energy of the vibration of the transformer into elastic potential energy and thermal energy in order to reduce the energy of the vibration of the transformer, so that noise emission is decreased; moreover, the structure of the device is simple, the production cost is low, the device can be directly used on conventional transformers, transformers do not need to be altered, and mounting and maintenance costs are reduced as well.
Description
Technical field
The present invention relates to transformer noise reduction technology in transformer station, be specifically related to a kind of reduction power transformer noise emission devices and methods therefor.
Background technology
In transformer station, transformer is the Main Noise Sources of network system, in order to reduce the transformer noise discharge, avoid the sound pollution of transformer station to peripheral resident, power grid enterprises' investment substantial contribution is administered, but at present the domestic control measures for transformer noise is single, invest hugely, and noise-reducing device builds up the rear day-to-day operation to transformer and safeguards and have inconvenience, reduce investment in order to reduce the transformer noise discharge, the convenient day-to-day operation to transformer is safeguarded and research the present invention simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of reduction power transformer noise emission devices and methods therefor, solve the comparatively serious problem of noise pollution that in current transformer station, transformer causes peripheral resident.
Find under study for action, the noise of transformer discharge mainly causes the density variation of air dielectric density to cause by transformer body with certain frequency vibrational excitation air, and this is also the principle that sound wave transmits.
For solving above-mentioned technical problem, the present invention by the following technical solutions: a kind of reduction power transformer noise emission device, comprise elastic component and solid metal ball, described elastic component is fixed on the transformer surface, described solid metal ball is fixed on the elastic component end.
Further, the length of described elastic component is 5cm～10cm.
Further, described elastic component is spring, and the diameter of spring diminishes to solid metal ball one end gradually from transformer one end, and its medi-spring is 5～7cm near the diameter of transformer one end, and the diameter of close solid metal ball one end is 4～5cm.
Further, described elastic component is pasted by sheet metal or magnetic is fixed on the transformer surface.
Further, the circle that sheet metal is diameter 5～7cm.
A kind of method that reduces the power transformer noise emission comprises the following steps:
Step 1, an end of elastic component is fixed on to the surface of transformer by stickup or magnetic, and the other end of elastic component is fixed a solid metal ball;
Step 2, elastic component and solid metal ball is unsettled;
Step 3, the vibrational energy of the certain frequency produced during transformer work passes to elastic component;
Step 4, elastic component and solid metal ball change into elastic potential energy and heat energy by vibrational energy, reduce the too high noise caused of transformer vibrational energy.
Compared with prior art, the invention has the beneficial effects as follows: be the kinetic transformation of transformer vibration that elastic potential energy and heat energy reduce the energy of transformer vibration with this, reduce noise emission, and this apparatus structure is simple, production cost is low, can directly on existing transformer, directly use, without transformer itself is transformed, also reduce the installation and maintenance cost.
The accompanying drawing explanation
Fig. 1 is that the present invention plants the structural representation that reduces an embodiment of power transformer noise emission device.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows an a kind of embodiment who reduces power transformer noise emission device of the present invention: a kind of reduction power transformer noise emission device, comprise elastic component 2 and solid metal ball 3, described elastic component 2 is fixed on transformer 1 surface, and described solid metal ball 3 is fixed on elastic component 2 ends.
A kind of preferred embodiment that reduces power transformer noise emission device according to the present invention: the length of described elastic component 2 is 5cm～10cm.
A kind of another preferred embodiment that reduces power transformer noise emission device according to the present invention: a kind of reduction power transformer noise emission device, comprise elastic component 2 and solid metal ball 3, described elastic component 2 is fixed on transformer 1 surface, described solid metal ball 3 is fixed on elastic component 2 ends, the length of this described elastic component 2 is 5cm～10cm, described elastic component 2 can be spring, the diameter of spring diminishes to solid metal ball 3 one ends gradually from transformer 1 one ends, its medi-spring is 5～7cm near the diameter of transformer 1 one ends, diameter near solid metal ball 3 one ends is 4～5cm.
A kind of another preferred embodiment that reduces power transformer noise emission device according to the present invention: a kind of reduction power transformer noise emission device, comprise elastic component 2 and solid metal ball 3, described elastic component 2 is fixed on transformer 1 surface, described solid metal ball 3 is fixed on elastic component 2 ends, described elastic component 2 pastes by sheet metal 4 or magnetic is fixed on transformer 1 surface, wherein the connected mode of stickup or magnetic had both facilitated installation also to maintain easily dismounting, also can reach the noise reduction purpose simultaneously.
A kind of another preferred embodiment that reduces power transformer noise emission device according to the present invention: sheet metal 4 is the circle of diameter 5～7cm.
Noise reduction measure of the present invention is to utilize device several and even that dozens of is such, be fixed on the transformer surface with magnetic or bonding mode, utilize the elasticity of elastic component and the inertia of solid metal ball to make kinetic energy be converted to elastic potential energy and heat energy under the effect of transformer vibration, with this, reduce the noise pollution that transformer externally produces.In addition, it is worthy of note that the quality of solid metal ball makes elastic component deformation be not more than 5%, specifically with the coefficient of elasticity of the frequency contributions amount regulating spring in the transformer noise spectral characteristic.
It is worthy of note in addition, can configure a plurality of devices on a transformer 1, a kind of method that reduces the power transformer noise emission comprises the following steps simultaneously:
Step 1, an end of elastic component 2 is fixed on to the surface of transformer 1 by stickup or magnetic, and the other end of elastic component 2 is fixed a solid metal ball 3;
Step 2, elastic component 2 and solid metal ball 3 is unsettled;
Step 3, the vibrational energy of the certain frequency produced during transformer work passes to elastic component 2;
Step 4, elastic component 2 and solid metal ball 3 change into elastic potential energy and heat energy by vibrational energy, reduce the too high noise caused of transformer 1 vibrational energy.
After after device the present invention, can be so that the energy change originally transmitted with 180 degree planes become with 270 degree discharges, from the angle calculation of energy transmission, the energy of propagating on in-plane at least reduces by 1/2nd.
Claims (6)
1. a reduction power transformer noise emission device, it is characterized in that: comprise elastic component (2) and solid metal ball (3), described elastic component (2) is fixed on transformer (1) surface, and described solid metal ball (3) is fixed on elastic component (2) end.
2. a kind of reduction power transformer noise emission device according to claim 1, it is characterized in that: the length of described elastic component (2) is 5cm～10cm.
3. a kind of reduction power transformer noise emission device according to claim 1 and 2, it is characterized in that: described elastic component (2) is spring, the diameter of spring diminishes to solid metal ball (3) one ends gradually from transformer (1) one end, its medi-spring is 5～7cm near the diameter of transformer (1) one end, and the diameter of close solid metal ball (3) one ends is 4～5cm.
4. a kind of reduction power transformer noise emission device according to claim 1 is characterized in that: described elastic component (2) is pasted by sheet metal (4) or magnetic is fixed on transformer (1) surface.
5. a kind of reduction power transformer noise emission device according to claim 4, it is characterized in that: sheet metal (4) is the circle of diameter 5～7cm.
6. a method that reduces the power transformer noise emission is characterized in that: comprise the following steps:
Step 1, an end of elastic component (2) is fixed on to the surface of transformer (1) by stickup or magnetic, and the other end of elastic component (2) is fixed a solid metal ball (3);
Step 2, elastic component (2) and solid metal ball (3) is unsettled;
Step 3, the vibrational energy of the certain frequency produced during transformer work passes to elastic component (2);
Step 4, elastic component (2) and solid metal ball (3) change into elastic potential energy and heat energy by vibrational energy, reduce the too high noise caused of transformer (1) vibrational energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103439961A CN103440969A (en) | 2013-08-08 | 2013-08-08 | Device for decreasing noise emission of power transformers and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103439961A CN103440969A (en) | 2013-08-08 | 2013-08-08 | Device for decreasing noise emission of power transformers and method thereof |
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| CN103440969A true CN103440969A (en) | 2013-12-11 |
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| CN2013103439961A Pending CN103440969A (en) | 2013-08-08 | 2013-08-08 | Device for decreasing noise emission of power transformers and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900002569A1 (en) | 2019-02-22 | 2020-08-22 | Phononic Vibes S R L | Acoustic attenuation device for sound propagated through surfaces |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4373608A (en) * | 1979-12-20 | 1983-02-15 | General Electric Company | Tuned sound barriers |
| JPH10223452A (en) * | 1997-02-12 | 1998-08-21 | Meidensha Corp | Vibration-proof structure of static apparatus for power |
| CN1946952A (en) * | 2004-04-21 | 2007-04-11 | 株式会社神户制钢所 | Vibration reducing and connecting structure |
| CN101801308A (en) * | 2006-11-03 | 2010-08-11 | 皇家飞利浦电子股份有限公司 | Vibration-canceling secondary resonator for use in a personal care appliance |
| CN203366963U (en) * | 2013-08-08 | 2013-12-25 | 国家电网公司 | Device for reducing noise emission of power transformer |
-
2013
- 2013-08-08 CN CN2013103439961A patent/CN103440969A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4373608A (en) * | 1979-12-20 | 1983-02-15 | General Electric Company | Tuned sound barriers |
| JPH10223452A (en) * | 1997-02-12 | 1998-08-21 | Meidensha Corp | Vibration-proof structure of static apparatus for power |
| CN1946952A (en) * | 2004-04-21 | 2007-04-11 | 株式会社神户制钢所 | Vibration reducing and connecting structure |
| CN101801308A (en) * | 2006-11-03 | 2010-08-11 | 皇家飞利浦电子股份有限公司 | Vibration-canceling secondary resonator for use in a personal care appliance |
| CN203366963U (en) * | 2013-08-08 | 2013-12-25 | 国家电网公司 | Device for reducing noise emission of power transformer |
Non-Patent Citations (1)
| Title |
|---|
| 张高雄: "《车工实用技术问答》", 31 March 2012, article "第六章 车工计算常识", pages: 216-218 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900002569A1 (en) | 2019-02-22 | 2020-08-22 | Phononic Vibes S R L | Acoustic attenuation device for sound propagated through surfaces |
| WO2020169711A1 (en) | 2019-02-22 | 2020-08-27 | Phononic Vibes S.R.L. | Acoustic attenuation device for propagated sound through surfaces |
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Application publication date: 20131211 |