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Noise reduction and protection device for outdoor power transformer

A technology for power transformers and protective devices, applied in the field of transformers, can solve problems such as the ineffective solution of transformer noise, and achieve the effects of excellent chemical stability and corrosion resistance, good sound insulation effect, and enhanced sound absorption and sound insulation effect.

Inactive Publication Date: 2016-10-12
国网河南省电力公司南召县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the noise problem generated by the transformer itself has not been effectively solved.

Method used

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  • Noise reduction and protection device for outdoor power transformer
  • Noise reduction and protection device for outdoor power transformer
  • Noise reduction and protection device for outdoor power transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] refer to figure 1, an outdoor power transformer noise reduction protection device, including a side wall 1, a top plate 2 and a support beam 3, the side wall 1 sequentially includes a foam concrete wall 4 and a PVC board 5 from the inside to the outside, and the foam concrete wall The outer surface of 4 is coated with transparent waterproof material, the inner surface of the PVC board 5 is coated with sound-absorbing paint 6, there is a gap 7 between the foam concrete wall 4 and the PVC board 5, and the top board 2 is covered on the The upper part of the side wall 1 together with the side wall 1 constitutes the protective cavity 9 of the power transformer 20, and the side wall 1 is provided with a door opening and a door panel matched with the door opening. In this embodiment, the device is symmetrical about the center line, and door openings and door panels can be arranged on any side wall 1 as required.

[0028] Specifically, the side walls 1 form a square structure,...

Embodiment 2

[0031] refer to image 3 , the outdoor power transformer noise reduction protective device described in this embodiment is improved on the basis of Embodiment 1, specifically: the width of the gap 7 between the foam concrete wall 4 and the PVC board 5 is 0.8 to 1.2 cm , and filled with sound-absorbing cotton 11; to enhance the sound-absorbing performance of the side wall 1.

Embodiment 3

[0033] refer to Figure 4 , the outdoor power transformer noise reduction protection device described in this embodiment is improved on the basis of Embodiment 1, and can also be used in combination with Embodiment 2, specifically: the top plate 2 is made of plastic waterproof boards, and the plastic An aluminum honeycomb porous sound-absorbing panel 12 is arranged on the inner side of the waterproof board. The perforation rate of the aluminum honeycomb porous sound-absorbing panel 12 is 12-20%, and the aperture is 2.0-2.5 mm. The aluminum honeycomb porous sound-absorbing panel 12 is set to enhance the internal sound-absorbing effect, and the perforation rate and the size of the aperture will affect the transformation of the sound wave. According to experiments, when the perforation rate of the aluminum honeycomb porous sound-absorbing panel 12 is 12-20%, The hole diameter is 2.0~2.5mm, the sound absorption effect is better, and within the above range, the perforation rate of ...

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Abstract

The invention provides a noise reduction and protection device for an outdoor power transformer and belongs to the technical field of transformers. The noise reduction and production device for the outdoor power transformer comprises a side wall, a top plate and a supporting beam. The side wall sequentially comprises a foam concrete wall body and a polyvinyl chloride (PVC) board from inside to outside. The outer side face of the foam concrete wall body is coated with a transparent waterproof material. The inner side face of the PVC board is coated with sound deadening coating. A gap exists between the foam concrete wall body and the PVC board. The top plate is arranged on the side wall in a covering mode, and a protection cavity of the power transformer is composed of the top plate and the side wall jointly. The side wall is provided with a door opening and a door plank matched with the door opening. According to the noise reduction and protection device, the sound isolation effect is good, outward spreading of the noise is effectively reduced, and noise pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of transformers, in particular to an outdoor power transformer noise reduction protection device. Background technique [0002] A power transformer is a static electrical device that converts an AC voltage (current) of a certain value into another voltage (current) with the same frequency or several different values ​​through electromagnetic coupling. In the long-distance power transmission, the transformer plays an important role. On the one hand, the transformer boosts the voltage to send the power to the power-consuming area, and on the other hand, the transformer reduces the voltage to the voltage used at all levels to meet the needs of users. In recent years, with the improvement of people's living standards, the electricity consumption of residents has increased rapidly, resulting in the increase of power transformers in residential areas. At present, the location of transformers is basically located ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H5/04E04B1/66E04B1/86C09D4/02C09D4/06C09D7/12C09D5/08
CPCC09D4/06C09D5/08C09D7/61C09D7/63C09D7/65E04B1/665E04B1/86E04B2001/848E04H5/04
Inventor 刘夏霍培马铮王明旭黄健钊温志中
Owner 国网河南省电力公司南召县供电公司
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