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正负压热成型机电机发热故障的原因及处理

作者:fnbsb  来源:025zj.com  更新时间:2020-01-06 18:43:52  点击次数:

一、电动机发热故障原因分析


  DIANDONGJIZAIYUNXINGGUOCHENGZHONGSUOCHANSHENGDERELIANGZHUYAOLAIZIJIXIEJIEGOUJIANMOCACHANSHENGDERELIANG、DIANLIUTONGGUODING(ZHUAN)ZIRAOZUCHANSHENGDEDIANRELIANG、DIANDONGJISANRELENGQUEXITONGSHILINGHUOTONGFENGXITONGDUSAI、YUNXINGZHONGTIESUN、TONGSUNXIANGRELIANGZHUANHUANDENGYUANYINZAOCHENGDERELIANGJILEI。YOUYUDIANJINEIBUJIEGOUJIAOWEIFUZA,ZAOCHENGSANXIANGYIBUDIANDONGJIFASHENGGUOREGUZHANGDEYUANYINYEBIJIAODUO,QIGUZHANGSUOBIAOXIANDEXINGSHIYEBUYIYANG。YINCI,BIXUZAIRICHANGYUNXINGGUANLIZHONG,BIXUDUIDIANDONGJIFAREXIANXIANGYUGUZHANGLEIXINGJINXINGXIANGXIDEFENXIZONGJIE。


  1、外部原因分析


  YUNXINGHUANJINGDEGAIBIANSHIYINQIDIANDONGJIFAREDEZHUYAOWAIBUYUANYIN,RU:SANXIANGDIANYABUPINGHENG、DIANYUANDIANYABODONG、CHAOFUHEGUOZAIYUNXING、YUNXINGHUANJINGCHADENG。


    1)三相电压不平衡


  DANGDIANDONGJIGONGDIANDIANYUANCHUXIANSANXIANGDIANYABUPINGHENGSHI,JIUHUIZAINEIBUFUZADIANCIJIAOHUHUANJINGZHONGXINGCHENGNIXUDIANLIUHENIXUCICHANG,CONGERZAIDIANDONGJIRAOZUZHONGXINGCHENGJIAODADENIXUZHUANJU。ZAIZHUANJUDEDIEJIAXIADIANDONGJINEIBUDIANCIZHUANJUJIUHUIJIANXIAO,CONGERZAOCHENGDIANDONGJIZHUANZIZHUANSUBIANDI,ZAITONGYANGFUHERONGLIANGDEQINGKUANGXIA,WEILESHIDIANJIXITONGZHONGXINDADAOPINGHENG,JIUBIXUZENGJIADIANDONGJIDEDIANLIU,ZHEIYANGJIUHUIZENGJIADIANDONGJINEIBURAOZUFARELIANG,YANZHONGSHIJIUHUIZAOCHENGDIANDONGJIFASHENGGUOREGUZHANG。JUYIXIEGONGCHENGYINGYONGTONGJIFAXIAN,DIANDONGJISANXIANGDIANYABUPINGHENGDUDADAO5%ZUOYOUSHI,DIANDONGJIXIANGJIANDIANLIUJIUHUICHAOGUOEDINGDIANLIUZHIDE25%YISHANG,QIEDIANDONGJIDIANLIUZHISUIDIANYABUPINGHENGDUDEZENGJIAERJUZENG。YINCI,WEILEBAOZHENGDIANDONGJIANQUANWENDINGYUNXING,ZAIRICHANGGUANLIZHONGBIXUYANGEJIANSHIDIANYUANDIANYADEBUPINGHENGDU,JINLIANGBAOZHENGDIANJIZAISANXIANGPINGHENGTIAOJIANXIAYUNXING。


    2)电源电压波动


  ZHIZAOCHANGJIAWEILEBAOZHENGDIANDONGJIJUYOUJIAOGAOJISHUHEJINGJIZHIBIAO,TONGCHANGZAIDIANDONGJISHEJISHI,XUANZEQICIHUAQUXIANWEIJINBAOHEGONGKUANGQU[2]。DIANDONGJIGONGDIANDIANYUANDIANYASHENGGAOHOU,DIANDONGJINEIBUDEQIXICITONGJIUHUIZENGDA,XIANGYINGDIANDONGJICITONGHUILUJIUHUICHUXIANGUOBAOHEZHUANGTAI,CISHILICIDIANLIUJIUHUIJULIEZENGJIA,ZAIRAOZUZHONGCHANSHENGJUDADERELIANG,YINQIDIANDONGJIFASHENGGUZHANGGUZHANG。YOUYUDIANDONGJIDEDIANCIZHUANJUYUDIANYADEPINGFANGCHENGZHENGBILIGUANXI,DANGDIANYUANDIANYAXIAJIANGHOU,ZAIDIANDONGJIFUZAIZHUANJUBUBIANDEQINGKUANGXIA,JIUHUIJIANGDIANDONGJIDEZHUANSULADI,YINQIZHUANCHALVZENGDA,XINGCHENGJUDADEZHUANZI(DINGZI)DIANLIU,ZAIRAOZUZHONGJULIEFARE,YINQIDIANDONGJIFASHENGFAREGUZHANG。YEJIUSHISHUODIANYUANDIANYASHENGGAOYINQIDEDIANDONGJIFAREZHUYAOTIXIANZAIDIANDONGJINEIBUTIEXINCHU;ERDIANYUANDIANYAXIAJIANGYINQIDEDIANDONGJIFAREZHUYAOTIXIANZAIZHUANZI(DINGZI)RAOZUZHONG。


    3)超负荷过载运行


  CHAOFUHEGUOZAIYUNXINGSHIDIANDONGJIFASHENGFAREGUZHANGDECHANGJIANWAIBUYUANYIN。ZAIZHENGGEDIANJIXITONGZHONG,DIANDONGJISUOTUODONGDEJIXIEXITONGRUGUOCHUXIANKASAI、CHUANDONGJIGOUGUOJIN、RUNHUAXITONGPOHUAI、FUZAITURANZENGJIADENGYUANYINJUNNENGDAOZHIDIANDONGJIYUNXINGZAIDIXIAOGONGKUANGQU,CHUXIANCHAOFUHEGUOZAIQINGKUANG。DIANJIXITONGSHEJIXUANXINGBUHELIYEKENENGZAOCHENGDIANDONGJICHUXIAN“XIAOMALADACHE”DEQINGKUANG。ZAIZHEIZHONGGONGKUANGXIA,DIANJIXITONGWEILEBAOZHENGSHURUSHUCHUJIANDEPINGHENG,JIUHUIJIANGDIDIANDONGJIZHUANSU,CONGERZAOCHENGNEIBUDIANLIUZENGJIA,CHANSHENGJULIEDERELIANG,YINQIDIANJIFASHENGGUOREGUZHANG。


  2、内部原因


  NEIBUJIXIEJIEGOUGUZHANG、DINGZIRAOZUGUZHANG、ZHUANZIRAOZUGUZHANGYIJIJUEYUANGUZHANGSHIDIANDONGJIFASHENGGUOREGUZHANGDEZHUYAONEIBUYUANYIN。


    1)机械故障


  DANGDIANDONGJIZHOUCHENGANZHUANGBUDAOWEICHUXIANPIANXINKASAI、ZHOUCHENGRUNHUAXITONGCHUWURUNHUAYOU、YOUGUODUO、YOUZHIBUHAO、YOUMIFENGXITONGBUDAOWEIDENGYUANYINYIJIDIANDONGJIDUANGAIYUDIANDONGJIJIZUOCHUXIANBUTONGXINDENGXIANXIANGSHI,JUNNENGZAOCHENGZHOUCHENGJIANMOCALIZENGJIA、ZHUANZHOUNIUQUBIANXING、ZHUANZHOUFASHENGSAOTANGDENGWENTI,CONGERZAOCHENGDIANJIJULIEFARE,YINQIFAREGUZHANG。


    2)定子(转子)绕组故障


  DIANDONGJISANXIANGRAOZUSHOUWEIJIECUO、DINGZI(ZHUANZI)RAOZUZAJIANHUOCENGJIANFASHENGDUANLU、YIJISANXIANGRAOZUFASHENGDANXIANGJIEDIDENGGUZHANGSHI,JUNNENGZAOCHENGDIANJIFASHENGGUOREGUZHANG。DANGDIANDONGJISANXIANGRAOZUYINXIANCHUTOUJIANCHUXIANXUJIE、XUHANDENGQINGKUANGSHI,JIUHUIZAOCHENGJIETOUJIECHUDIANZUGUODA,ZAIRAOZUJIETOUCHUJULIEFAREYINQIDIANDONGJIFASHENGFAREGUZHANG。


    3)绝缘故障


FG美人捕鱼  SUIZHEDIANDONGJIYUNXINGSHIJIANDEJIAZHANG,DIANDONGJITIEXINDIEPIANCENGJUEYUANHUIZAIREXIAOYINGHEDONGXIAOYINGDEGONGTONGYINGXIANGXIABUDUANLAOHUAHUOSUNHUAI,CONGERZAOCHENGDIANDONGJINEIBUWOLIUZENGJIA,ZENGDADIANDONGJITIESUNMIAN,ZAITIEXINCHUJULIEFARE。DIANDONGJIRAOZUJUEYUANFASHENGLAOHUASUNHUAIHOU,QIRAOZUJUEYUANXIAOGUOJIUHUIDADAJIANGDI,LOUDIANLIUJIUHUIJULIEZENGDA,ZAIRAOZUCHUCHANSHENGJIAODUODERELIANG,SHIDIANDONGJICHUXIANYANZHONGDEFAREGUZHANG。


二、改进措施


  1、提高电动机自身工况特性


  ZAIDIANJIXITONGSHEJISHI,YINGGAICHONGFENKAOLVHOUQIKUORONGXUQIU,RENZHENJISUANDIANDONGJIDEFUHERONGLIANG,XUANZEHESHIDEDIANDONGJIDIANYADENGJIHESHUCHUGONGLV。DUIYUJINGWEIXIUGUODEDIANDONGJIERYAN,SHOUXIANYINGGAIBAOZHENGNEIBUJIXIEJIEGOUANZHUANGWEIZHIDEZHUNQUEXING,RENZHENJIANCHANEIBURAOZUDESHOUWEITONGMINGDUANDELIANJIEQINGKUANG,BINGQINGZHUANMENDEHANJIERENYUANJINGQUEKEKAODEHANJIEDIANDONGJIRAOZUDEYINCHUXIAN。JIAQIANGRICHANGYUNXINGGUANLIXUNSHILIDU,FAXIANDIANDONGJIYOUYICHANGDIANYA、DIANLIU、ZHENDONGHEZAOYINGUODA、WENDUGUOGAODENGYICHANGQINGKUANGYINGSHIYINGLIJITINGJI,JISHIPAICHAYICHANGYUANYIN,TIGAODIANDONGJIZONGHEYUNXINGGONGKUANGSHUIPING。


  2、保证供电电源质量水平


  SHOUXIANYINGDUIDIANJIGONGDIANDIANYUANJINXINGLISHUN,XUANZEHESHIDEDIANDONGJIQIDONGHEBAOHUZHUANGZHI,BINGBAOZHENGGONGDIANDIANYAJUYOUGAODEZHILIANGSHUIPING,JINLIANGZUODAODIANDONGJIYUNXINGZAISANXIANGPINGHENGDEDIANYUANHUANJINGZHONG。


  3、及时调整电机运行方式


  DINGQIJIANCHADIANJIXITONGTUODONGJIXIEJIEGOUHECHUANDONGJIGOUDETEXING,BINGDINGQIHECHADIANDONGJIDEFUZAIQINGKUANG,BIMIANDIANDONGJIZHANGQIYUNXINGZAICHAOFUHEGUOZAIYUNXINGGONGKUANG。JINLIANGGENJUGONGCHENGSHIJIQINGKUANG,GAISHANDIANDONGJIDEZONGHEYUNXINGHUANJING,ZUOHAOTONGFENG、RUNHUAXITONGDENGWEIHUGONGZUO。BAOZHENGDIANDONGJIYUNXINGHUANJINGDEQINGJIE,DINGQIJINXINGBIYAODEDIANDONGJIBAOYANGWEIHUGONGZUO。


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相关TAG:正负压热成型机
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