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Dynamic vibration absorber applied to tank wall of oil-immersed transformer

An oil-immersed transformer, dynamic vibration absorption technology, applied in transformer/inductor cooling, transformer/inductor noise damping, non-rotational vibration suppression, etc. Problems, to achieve the effect of convenient replacement and maintenance, improve firmness, and improve the effect of dynamic vibration absorption

Pending Publication Date: 2020-09-01
绍兴建元电力集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a dynamic vibration absorbing device applied to the tank wall of an oil-immersed transformer, so that when the existing dynamic vibration absorbing device is in use, its dynamic vibration absorbing effect is always at a fixed value, and it cannot The adjustment of the dynamic vibration absorption effect on it causes the problem that the scope of application is relatively narrow

Method used

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  • Dynamic vibration absorber applied to tank wall of oil-immersed transformer
  • Dynamic vibration absorber applied to tank wall of oil-immersed transformer
  • Dynamic vibration absorber applied to tank wall of oil-immersed transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] refer to Figure 1 to Figure 4 As shown, a dynamic vibration absorbing device applied to the tank wall of an oil-immersed transformer is installed on the tank wall of an oil-immersed transformer. The direction is perpendicular to the wall of the oil-immersed transformer box. No. 1 casing 1 and No. 2 casing 10 are connected with a mounting plate 5 at one end close to the tank wall of the oil-immersed transformer, and connected with a limiting plate at one end far away from the tank wall of the oil-immersed transformer.

[0030] Among them, No. 1 housing 1 and No. 2 housing 10 are fixedly connected with No. 2 springs 19 at equal distances from one end of the length of the oil-immersed transformer box wall and the inner wall of the mounting plate 5, and the other end of each No. 2 spring 19 is fixed. An extruded plate 18 is attached. The other end of each pressing plate 18 is fixedly connected with a No. 1 spring 17 , and the other end of each No. 1 spring 17 is fixedly ...

Embodiment 2

[0036] A further improvement is made based on the first embodiment. Due to the large wall area of ​​the oil-immersed transformer, it is generally necessary to install multiple above-mentioned dynamic vibration absorbing devices. In order to fixedly connect a plurality of above-mentioned dynamic vibration absorbing devices as a whole. refer to figure 1 and Figure 4 As shown, the outer walls of the housing No. 1 and the housing No. 2 10 on the opposite side are fixedly connected with connecting cylinders 7 , and the connecting cylinders 7 are provided with through holes 9 radially through them. In order to achieve uniformity, all the through holes 9 are connected up and down and have the same size.

[0037]In this embodiment, four connecting cylinders 7 are arranged on each side, and are distributed near the four corners of the side walls. The two connecting cylinders arranged in pairs on both sides correspond to each other and have different diameters (the outer diameter o...

Embodiment 3

[0039] On the basis of Embodiments 1 and 2, a preliminary vibration-absorbing component is also provided. The preliminary vibration-absorbing assembly includes a number of first connecting plates 20 , second connecting plates 21 and preliminary shock-absorbing springs 22 . Wherein, the outer wall of the mounting plate 5 is equidistantly fixedly connected with a plurality of No. 1 connecting plates 20, which can be distributed in a rectangular array. One end is fixedly connected to the No. 2 connecting plate 21 . When installing the dynamic vibration-absorbing device, the primary vibration-absorbing springs 22 on the No. 1 connection plate 20 and the No. 2 connection plate 21 first play a vibration-absorbing effect, thereby further improving the dynamic vibration-absorbing effect of the device.

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Abstract

The invention discloses a dynamic vibration absorber applied to a tank wall of an oil-immersed transformer. The vibration absorber comprises a shell and a plurality of adjustable vibration absorptionspring sets, each adjustable vibration absorption spring set comprises a first spring, a second spring, an extrusion plate, an adjusting plate and an adjusting bolt. The end, close to the length of the tank wall of the oil-immersed transformer, of the shell is connected with a mounting plate, and the other end is connected with a limiting plate. One end of the first spring is connected with the inner wall of the mounting plate, and the other end is connected with one side of an extrusion plate. One end of the second spring is connected with the other side of the extrusion plate, and the otherend of the second spring is connected with an adjusting plate. The limiting plate is respectively provided with the first threaded holes corresponding to the adjustable vibration absorption spring sets, the adjusting bolts are in threaded connection with the first threaded holes, and the inner ends of the adjusting bolts penetrate through the first threaded holes to be connected with the adjusting plates. According to the present invention, the adjusting bolts are adjusted according to the vibration strength of the oil-immersed transformer, so that the elastic potential energy of the first spring and the second spring is adjusted, and the dynamic vibration absorption effect of the oil-immersed transformer is adjusted.

Description

technical field [0001] The invention belongs to the technical field of power distribution and transformation equipment, and in particular relates to an oil-immersed voltage transformer. Background technique [0002] Oil-immersed transformer is a device that uses the principle of electromagnetic induction to change AC voltage. It has the functions of voltage conversion, current conversion, impedance conversion, isolation and voltage stabilization, and is widely used in production and life. [0003] In order to strengthen insulation and cooling conditions, the iron core and windings of oil-immersed transformers are immersed in an oil tank filled with transformer oil. However, in actual use, it is found that the transformer oil tank will produce vibrations of different intensities following the operation of the transformer. These vibrations not only affect the normal operation of the transformer, but also generate a lot of noise. [0004] The dynamic vibration absorbing device...

Claims

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Application Information

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IPC IPC(8): H01F27/14H01F27/33F16F15/04
CPCF16F15/04H01F27/14H01F27/33
Inventor 郎建应剑烈黄剑章伟德施进闵鹤群曲婷王博曹枚根钱志杰王军慧胡恩德万建军徐建锋边兴君金鸟王守康丁亦超
Owner 绍兴建元电力集团有限公司
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