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推荐:复合绝缘子,玻璃绝缘子,陶瓷绝缘子,悬式绝缘子
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--血战麻将  
复合绝缘子

    复合绝缘子又称合成绝缘子、非瓷绝缘子、聚合物绝缘子、橡胶绝缘子等,其主要结构一般由伞裙护套、玻璃钢芯棒和端部金具三部分组成。其中伞裙护套一般是由有机合成材料制成,如乙丙橡胶、高温硫化硅橡胶等;FRP芯棒一般是玻璃纤维作增强材料、环氧树脂作基体的玻璃钢复合材料;端部金具一般是外表面镀有热镀锌层的碳素铸钢和碳素结构钢。复合绝缘子的这种结构将机械强度与外绝缘性能分开,芯棒与伞裙护套分别承担机械与电气负荷,从而综合了伞裙护套材料耐大气、老化性能优越及芯棒材料拉伸机械性能好的优点。作为绝缘子结构的一部分,金具主要起传递机械应力与连接固定的作用。

    ZI19SHIJIMOCHUXIANGAOYASHUDIANXIANLUYILAI,CIJUEYUANZIYONGYUGAOYAWAIJUEYUANLINGYUYIYOU100DUONIANDELISHI。SUIZHEDIANYADENGJIDETIGAO,JUEYUANZISUOSHOUDEJIDIANFUHEDEJIAZHONG,YIJIDAQIWURANDEJIAJU,CIJUEYUANZIZAISHIYONGZHONGBAOLUCHUXINGNENGSHANGGUYOUDEQUEXIAN。FUHEJUEYUANZIDESHIYONGMIBULECIJUEYUANZIDEQUEXIANYURUODIAN。

    ZAOZAI20SHIJI40NIANDAIZHONGQI,SHUANGFENHUANYANGSHUZHIJUEYUANZIJIUKAISHIYONGYUHUNEIJUEYUAN。ZHEIZHONGJUEYUANZIZHONGLIANGQING,NAICHONGJINENGLIQIANG,YIYUJIAGONGCHENGFUZADEJUEYUANJIEGOU。DANYOUYUQINAILAOHUAXINGNENG、NAILOUDIANQIHENJINAIDIANSHISUNXINGNENGCHA,BUNENGYONGYUHUWAI。20SHIJI50NIANDAICHUXIANLEXINGNENGGENGHAODEZHIHUANZUHUANYANGSHUZHIJUEYUANZI,60NIANDAICHUQI,YIYOUSHAOLIANGCILEIJUEYUANZIYUNXINGYU400kVSHUDIANXIANLUYIJI500kVDIANZHAN。60NIANDAIMOZHI70NIANDAICHU,OUZHOUJIMEIGUOKAISHIZHIZAOYONGYUSHUDIANXIANLUDEJUHEWUJUEYUANZI。ZAIZHONGDUODEJUHEWUCAILIAOZHONG,GAOWENLIUHUAGUIXIANGJIAOCAILIAOZAINAILAOHUA、NAIELIEHUANJINGTIAOJIANDENGFANGMIANMINGXIANYOUYUYIBINGXIANGJIAODENGQITACAILIAO,DEDAOLEGENGWEIGUANGFANDEYINGYONG。

    我国电力系统用复合绝缘子的研究始于20世纪80年代初。清华大学、武汉大学、华东电力试验研究院、西安电瓷研究所等单位经过“七五”期间的艰苦攻关,研制出110~500kV系列的帮型悬式硅橡胶复合绝缘子,并通过了IEC1109标准的全部试验项目。由于吸取了电气化铁道复合绝缘子的经验,一开始就采用了硅橡胶与乙丙橡胶作为伞裙材料。又由于乙丙橡胶绝缘子的几起试运行事故,最后伞裙材料只剩下硅橡胶一种,这种状况一直持续至今。

    我国电力部门及生产厂家在多年的悬式复合绝缘子应用与制造的经验中,也逐渐体会到复合绝缘子除耐污性能优异外的其他诸多优点,如重量轻、体积小、不易破碎、运输安装方便、生产工艺简单、废品率低、生产能耗低、生产过程对环境污染小等。在野外施工及运行维护时,电力部门对复合绝缘子的优点则有更深刻的认识,从而不断扩大了硅橡胶复合绝缘子的应用范围,在不少轻污秽区或清洁区也开始推广使用复合绝缘子

    YUCHUANTONGDECIJUEYUANZIHEBOLIJUEYUANZIXIANGBIJIAO,FUHEJUEYUANZIDEYOUDIANGUINAQILAI,BAOKUOYIXIAJIGEFANGMIAN:

   (1)QIANGDUGAO,ZHONGLIANGQING。FUHEJUEYUANZIDEQIANGDUZHONGLIANGBIHENGAO,JIBIQIANGDUHENGAO。QIGAOJIXIEQIANGDUYUANYUBOLIGANGXINBANGYOUYIDEJIXIEXINGNENG,MUQIANBEIDALIANGCAIYONGDEBOLIGANGYINBABANGDELASHENQIANGDUKEDA1000MPaYISHANG,ERXINBANGMIDUJINWEI2g/cm³ZUOYOU,YINCIQIBIQIANGDUHENGAO,YUEWEIYOUZHITANSUGANGDE5~10BEI。TONGSHIZUOWEISANQUNCAILIAODEGUIXIANGJIAOMIDUYIBANYEBUDAO2g/cm³,YINCIFUHEJUEYUANZIZHENGTIDEZHONGLIANGHENQING。XIANGBIZHIXIA,GANGHUABOLIJICIDEKANGLAQIANGDUJINWEI90MPaHE40MPa。ZAIXIANGTONGDIANYADENGJIXIA,FUHEJUEYUANZIDEZHONGLIANGJINWEICIJUEYUANZIDE1/7~1/10.

   (2)SHISHANWUSHANDIANYAGAO。YOUJIFUHECAILIAODINENGBIAOMIANDEZENGSHUIXINGSHIFUHEJUEYUANZIYOUYINAISHIWUXINGNENGDEZHUYAOYUANYIN。ZAIDAWU、XIAOYU、LU、RONGBINGDENGELIEQIXIANGTIAOJIANXIA,FUHEJUEYUANZIBIAOMIANXINGCHENGFENLIDESHUIZHUERBUSHILIANXUDESHUIMO,WUCENGDIANDAOHENDI,YINCIXIELUDIANLIUYEHENXIAO,BUYIFASHENGQIANGLIEDEJUBUDIANHU,JUBUDIANHUYENANYIJINYIBUFAZHANDAOZHIWAIJUEYUANSHANLUO。YUNXINGYIDUANSHIJIAN,FUHEJUEYUANZIBIAOMIANJIWUHOU,ZENGSHUIXINGKEYIQIANYIDAOWUCENGBIAOMIANDETEXINGWEIGUIXIANGJIAOCAILIAOSUODUYOU,ZAIXIANGTONGWUHUIDUXIA,QIWUSHANDIANYAKEYIDADAOXIANGTONGXIELUJULICIJUEYUANZIDELIANGBEIYISHANG。

    PUTONGBANGXINGXUANSHIFUHEJUEYUANZIDEDENGXIAOZHIJINGYUANXIAOYUPUTONGCIXUANSHIJUEYUANZIJIZHIZHUJUEYUANZI,ZHEIYESHIQINAIWUXINGNENGYOUYIDEZHONGYAOYUANYIN。ZAIBULIDETIAOJIANXIA,ZENGSHUIXINGKENENGYINDIANQI、HUANJINGDENGYINGLIDEYINGXIANGERXIAJIANGHUOSANGSHI,DANQIDENGXIAOZHIJINGBUHUIBIANCU,SUOYIWUSHANDIANYARENGJIANGBAOCHIJIAOGAODESHUIPING。

   (3)YUNXINGWEIHUJIANBIAN。YOUJIWAIJUEYUANYOUYIDENAIWUSHANXINGNENGTIGAOLEDIANLIXITONGYUNXINGDEKEKAOXING,ZAIWUHUIDIQUWUXUXIANGCIJIBOLIJUEYUANZIYIYANGDINGQIQINGSAO,YEBUCUNZAIPUTONGXUANSHICIJUEYUANZILINGZHIJIANCEWENTI,DADAJIANGDILEWUHUIDIQUJUEYUANZIDEYUNXINGWEIHUFEIYONG。

   (4)BUYIPOSUI,FANGZHIYIWAISHIGU。FUHEJUEYUANZINAICHONGJINENGLIQIANG,DADAJIANSHAOLEANZHUANG、YUNSHUGUOCHENGZHONGZAOCHENGDEYIWAIPOSUN,BINGNENGYOUXIAOFANGZHIQIANGJIDENGRENWEIYINSUDEPOHUAI。JUWENXIANBAODAO,ZAIMEIGUO、LAMEIDENGDIQU,FUHEJUEYUANZINENGGOUMINGXIANJIANGDIRENWEIPOHUAILVSHITAMENBEIXUANYONGDEZHONGYAOYUANYIN。

    ZHEIXIEYOUDIANYIJINGWEIGEGUODEYUNXINGJINGYANSUOZHENGMING。JINGUANFUHEJUEYUANZIZAIZAOQIYOUYIXIEYOUYUCAILIAOJIZHIZAOGONGYIDENGYUANYINZAOCHENGDESHIGU,BINGQIEXIANZAIYIRANHAIYOUYIXIEWENTIXUYAOJIEJUE,DANSHIXIANZAIFUHEJUEYUANZIDESHEJIYUZHIZAOJISHUYIJINGDADAOLECHENGSHUDEJIEDUAN,KEYIJINXINGDAGUIMODEGONGYESHENGCHANBINGDALIANGTOURUSHANGYEYUNXING。GENJUGUOJIDADIANWANGHUIYIJUEYUANZIGONGZUOZU2000NIANDEGUJI,ZHI2000NIANQUANQIUFUHEJUEYUANZIDEZONGLIANGYIDA350WANZHI,GUANGFANYONGYUJIAOLIU110kVYISHANGDEGEGEDIANYADENGJI。DUI70DUOJIAGONGSIJINXINGDIAOCHADEJIEGUOXIANSHI:TAMENZHONGJIANYOU54%DEGONGSIXUANYONGFUHEJUEYUANZIYONGZAIWUHUIDIQU;YOU47%DEGONGSIXUANYONGFUHEJUEYUANZISHIYINQIZAIANZHUANGHEYUNSHUZHONGDEYOUYUEXING;YOU35%DEGONGSICONGJINGJIFANGMIANKAOLVXUANYONGFUHEJUEYUANZI。

 

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