- 摘 要
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(1 中國電力科學研究院有限公司， 北京 100192； 2 國網北京市電力公司， 北京 100031)
［摘要］變電站模塊化建設已成為我國變電站設計主流，但是，模塊化戶內變電站的圍護結構對電力設備噪聲的控制能力是有限的。在原有模塊化戶內變電站用的裝配式墻板的基礎上，根據墻板隔聲性能相關的理論依據，對其進行了隔聲性能優(yōu)化設計，并采用混響室法對原墻板與新墻板進行了試驗研究。研究結果表明，無論在中低頻區(qū)還是在中高頻區(qū),優(yōu)化后的新墻板的隔聲量相對原墻板都有了較大幅度的提高，優(yōu)化設計的效果明顯。并且新墻板具有機械強度高、保溫隔熱性能好、防火等優(yōu)點，在變電站噪聲治理方面具有重要的工程應用價值和社會效益。
［關鍵詞］變電站；圍護結構；裝配式墻板；多層復合夾芯板；隔聲優(yōu)化；降噪；隔聲測試
中圖分類號：TU112-4 文獻標識碼：A文章編號：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
*國家電網公司依托工程科技項目“110kV戶內變電站模塊化噪聲控制技術應用研究”（SGBJHR00FZJS1900490）。
作者簡介：李想，博士，工程師，Email : axiang_bj@163.com。
