(1 中国电力科学研究院有限公司， 北京 100192； 2 国网北京市电力公司， 北京 100031)

［摘要］变电站模块化建设已成为我国变电站设计主流，但是，模块化户内变电站的围护结构对电力设备噪声的控制能力是有限的。在原有模块化户内变电站用的装配式墙板的基础上，根据墙板隔声性能相关的理论依据，对其进行了隔声性能优化设计，并采用混响室法对原墙板与新墙板进行了试验研究。研究结果表明，无论在中低频区还是在中高频区,优化后的新墙板的隔声量相对原墙板都有了较大幅度的提高，优化设计的效果明显。并且新墙板具有机械强度高、保温隔热性能好、防火等优点，在变电站噪声治理方面具有重要的工程应用价值和社会效益。 

［关键词］变电站；围护结构；装配式墙板；多层复合夹芯板；隔声优化；降噪；隔声测试 

中图分类号：TU112-4 文献标识码：A文章编号：1002-848X(2021)21-0084-06

Design and experimental research of fabricated wallboard optimized for sound insulation performance in substations 

LI  Xiang1,  MO  Juan1,  CAI  Hongjun2,  LIU  Shouliang2,  ZHU  Zhanwei2,  JIANG  Zaixing2,  MA  Yuchao1,  LI  Yigang1 

(1 China Electric Power Research Institute, Beijing 100192， China；2 State Grid Beijing Electric Power Company, Beijing 100031， China) 

Abstract: Modular construction of substations has become the mainstream of substation design in China. However, the envelope structure of modular indoor substations merely has limited ability in controlling the noises from power equipment. Based on the original fabricated wallboard for modular indoor substations, the sound insulation performance of the wallboard optimization design was carried out according to the theoretical basis related to the sound insulation performance of the wallboard, and the original and new wallboards were experimentally researched with the method of the reverberation-chamber. The research results show that the sound insulation index of the new wallboards is greatly improved in both the middle-and-low frequency regions and the middle-and-high frequency regions compared to the original wallboards, and the effect of optimization design is obvious. Furthermore, the new wallboards still have the advantages of high mechanical strength, good thermal insulation performance and fire prevention, and have important engineering application value and social benefits in substation noise control. 

Keywords:substation； envelope structure;  fabricated wallboard； multi-layer composite coreboard； sound insulation optimization； noise reduction； sound insulation test

*国家电网公司依托工程科技项目“110kV户内变电站模块化噪声控制技术应用研究”（SGBJHR00FZJS1900490）。

 作者简介：李想，博士，工程师，Email : axiang_bj@163.com。