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    Suzhou Electric Appliance Research Institute
    期刊號: CN32-1800/TM| ISSN1007-3175

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    聲發(fā)射技術(shù)在GIS氣體泄漏檢測中的應(yīng)用

    來源:電工電氣發(fā)布時間:2016-09-20 11:20 瀏覽次數(shù):10
    聲發(fā)射技術(shù)在GIS氣體泄漏檢測中的應(yīng)用
     
    劉榮海1,楊迎春1,臧春艷2,鄭欣1,許紅偉1,湯國龍2
    (1 云南電網(wǎng)有限責(zé)任公司電力科學(xué)研究院,云南 昆明 650217;
    2 華中科技大學(xué) 電氣與電子工程學(xué)院,湖北 武漢 430074)
     
        摘 要:氣體絕緣金屬封閉開關(guān)設(shè)備(GIS) 中SF6氣體泄漏會在泄漏點(diǎn)形成氣體湍流,產(chǎn)生超聲波,根據(jù)這一特性,提出一種新的帶電檢測方法——聲發(fā)射技術(shù),該方法通過檢測超聲波信號,能夠在帶電的情況下,快速、準(zhǔn)確對泄漏點(diǎn)進(jìn)行定位。對其可行性進(jìn)行了理論分析,并通過現(xiàn)場實(shí)驗(yàn)驗(yàn)證了其有效性。該方法為GIS 氣體泄漏檢測提供了更加快捷實(shí)效的途徑。
        關(guān)鍵詞:氣體絕緣金屬封閉開關(guān)設(shè)備;SF6泄漏檢測;氣體湍流;聲發(fā)射
        中圖分類號:TM595;TM934.3  文獻(xiàn)標(biāo)識碼:A  文章編號:1007-3175(2016)09-0047-04
     
    Application of Acoustic Emission Technology in Gas Leakage Detection for Gas Insulated Metal-Enclosed Switchgear
     
    LIU Rong-hai1, YANG Ying-chun1, ZANG Chun-yan2, ZHENG Xin1, XU Hong-wei1, TANG Guo-long2
    (1 Electric Power Research Institute, Yunnan Electric Power Test and Research Institute (Group), Kunming 650217, China;
    2 School of Electric and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)
     
        Abstract: Once the gas SF6 in the gas insulated metal-enclosed switchgear (GIS) leaks, the gas turbulence will form and the ultrasonic will produce. According to this feature, this paper proposed a new kind of on-line detection way—acoustic emission technique. This method could rapidly and accurately locate the point of leakage for on-line equipment by detecting the ultrasonic signal. This paper carried out theoretical analysis for its feasibility and verified its effectiveness through the experiment. This method provides a more efficient and effective way for gas leakage detection of GIS.
        Key words: gas insulated metal-enclosed switchgear; leakage detection of SF6; gas turbulence; acoustic emission
     
    參考文獻(xiàn)
    [1] 王偉, 馮新巖, 林牛, 等. 利用紅外成像法檢測GIS設(shè)備SF6氣體泄漏[J]. 高壓電器,2012,48(4):84-87.
    [2] 陳振生.GIS 高壓電器SF6氣體密度、濕度及泄漏檢測技術(shù)[J]. 電氣技術(shù),2007(4):16-20.
    [3] 吳變桃,肖登明,尹毅.GIS 中SF6氣體泄漏光學(xué)檢測新技術(shù)[J]. 高壓電器,2005,41(2):116-118.
    [4] JIANG Mingshun, SUI Qingmei, JIA Lei, et al. FBG-based ultrasonic wave detection and acoustic emission linear location system[J]. Optoelectronics Letters,2012,8(3):220-223.
    [5] SU Chingchau, TANG Yawen, TAI Chengchi, et al.Detection and location of partial discharge in cast-resin dry-type transformers using a waveguide and a new acoustic emission sensor pair design[J]. Journal of Zhejiang University (SCIENCE),2011,12(4):345-350.
    [6] 譚興強(qiáng). 管道泄漏聲發(fā)射檢測系統(tǒng)的研究[D]. 重慶:重慶大學(xué),2006.
    [7] 李善春. 管道氣體泄漏聲源與聲發(fā)射信號特性研究[D]. 大慶:大慶石油學(xué)院,2007.
    [8] 龔其春, 劉成良, 王永紅, 等. 新型氣體泄漏超聲檢測系統(tǒng)的研究與設(shè)計(jì)[J]. 液壓與氣動,2005(3):75-76.
     
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