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Method and device for predicting sound transmission of transformer in building room

A prediction method and transformer technology, applied in the field of environmental engineering, can solve problems such as immature technology and achieve the effect of easy operation

Active Publication Date: 2020-02-04
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, related studies are rarely reported, and related technologies are not yet mature.

Method used

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  • Method and device for predicting sound transmission of transformer in building room
  • Method and device for predicting sound transmission of transformer in building room
  • Method and device for predicting sound transmission of transformer in building room

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Unless otherwise specified, the instruments or materials used in the present invention are commercially available.

[0041] A method for predicting sound transmission of a transformer structure in a building room of the present invention comprises the following steps:

[0042] 1. Before the installation and operation of the transformer, install a vibrator (the model of the vibrator in this embodiment is HEV-500) on the ground of its installation location. The mandrel of the vibrator is installed vertically to the ground, thus simulating the exciting force of the transformer on the ground. The frequency of the exciting force generated by the exciter is set to 20-2000Hz, including the main frequency of transformer vibration. Utilize the vibration testing device (the vibration testing device of the present embodiment is B&K 3160 data acq...

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Abstract

The invention discloses a method and a device for predicting sound transmission of a transformer in a building room. The method comprises the following steps that: before a transformer is installed and put into operation, a vibration exciter is taken and placed at an installation position, when the vibration exciter operates, a vibration speed time domain signal at the installation position and anoise time domain signal in a room are collected, and the transmission relation between vibration at the installation position and noise in the room is calculated; a transformer consistent with the to-be-installed transformer is selected to collect the ground vibration speed time domain signal of the transformer during operation and obtain a speed frequency domain signal after signal processing; and the sound transmission of the transformer is predicted according to the transmission relation between the vibration at the installation position and the noise in the room and the speed spectrum signal of the ground vibration when the transformer operates to calculate and obtain the predicted noise value in the room after the transformer is installed. The method and the device for predicting sound transmission of the transformer in the building room are simple and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a sound transmission prediction method and device for a transformer structure in a building room. Background technique [0002] With the development of the city, land resources are constantly in short supply, and more and more distribution transformers in residential areas are placed in the basements of residential buildings. The transformer will always vibrate during operation, which will generate noise pollution, affect the normal life of residents, and cause residents' environmental protection complaints and disputes. [0003] Studies have shown that the noise caused by distribution transformers in high-rise buildings (the second floor and above) is mainly through the vibration of transformers transmitted to the floors, walls, columns and other structures of residential buildings through the foundation, and then further transmitted to residents. The wall, bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G06Q10/04H01F27/33
CPCG01H17/00G06Q10/04H01F27/33
Inventor 卢铃吴晓文曹浩胡胜彭继文周加喜黄韬
Owner STATE GRID HUNAN ELECTRIC POWER