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多级泵泵用机械密封检修中的几个误区

文章出处:责任编辑:人气:-发表时间:2014-12-18 19:44【

1、DANHUANGYASUOLIANGYUEDAMIFENGXIAOGUOYUEHAO。QISHIBURAN,DANHUANGYASUOLIANGGUODA,KEDAOZHIMOCAFUJIJUMOSUN,SHUNJIANSHAOSUN;GUODUDEYASUOSHIDANHUANGSHIQUDIAOJIEDONGHUANDUANMIANDENENGLI,DAOZHIMIFENGSHIXIAO。

2、DONGHUANMIFENGTUYUEJINYUEHAO。QISHIDONGHUANMIFENGQUANGUOJINYOUHAIWUYI。YISHIJIAJUMIFENGQUANYUZHOUTAOJIANDEMOSUN,GUOZAOXIELOU;ERSHIZENGDALEDONGHUANZHOUXIANGDIAOZHENG、YIDONGDEZULI,ZAIGONGKUANGBIANHUAPINFANSHIWUFASHISHIJINXINGDIAOZHENG;SANSHIDANHUANGGUODUPILAOYISUNHUAI;SISHISHIDONGHUANMIFENGQUANBIANXING,YINGXIANGMIFENGXIAOGUO。

3、JINGHUANMIFENGQUANYUEJINYUEHAO。JINGHUANMIFENGQUANJIBENCHUYUJINGZHIZHUANGTAI,XIANGDUIJIAOJINMIFENGXIAOGUOHUIHAOXIE,DANGUOJINYESHIYOUHAIDE。YISHIYINQIJINGHUANMIFENGYINGUODUBIANXING,YINGXIANGMIFENGXIAOGUO;ERSHIJINGHUANCAIZHIYISHIMOJUDUO,YIBANJIAOCUI,GUODUSHOULIJIYIYINQISUILIE;SANSHIANZHUANG、CHAIXIEKUNNAN,JIYISUNHUAIJINGHUAN。

4、多级泵叶轮锁母越紧越好。机械密封泄漏中,轴套与轴之间的泄漏(轴间泄漏)是比较常见的。一般认为,轴间泄漏就是叶轮锁母没锁紧,其实导致轴间泄漏的因素较多,如轴间垫失效,偏移,轴间内有杂质,轴与轴套配合处有较大的形位误差,接触面破坏,轴上各部件间有间隙,轴头螺纹过长等都会导致轴间泄漏。锁母锁紧过度只会导致轴间垫过早失效,相反适度锁紧锁母,使轴间垫始终保持一定的压缩弹性,在运转中锁母会自动适时锁紧,使轴间始终处于良好的密封状态。

5、XINDEBIJIUDEHAO。XIANGDUIERYAN,SHIYONGXINJIXIEMIFENGDEXIAOGUOHAOYUJIUDE,DANXINJIXIEMIFENGDEZHILIANGHUOCAIZHIXUANZEBUDANGSHI,PEIHECHICUNWUCHAJIAODAHUIYINGXIANGMIFENGXIAOGUO;ZAIJUHEXINGHESHENTOUXINGJIEZHIZHONG,JINGHUANRUWUGUODUMOSUN,HAISHIBUGENGHUANWEIHAO。YINWEIJINGHUANZAIJINGHUANZUOZHONGZHANGSHIJIANCHUYUJINGZHIZHUANGTAI,SHIJUHEWUHEZAZHICHENJIWEIYITI,QIDAOLEJIAOHAODEMIFENGZUOYONG。

6、CHAIXIUZONGBIBUCHAIHAO。YIDANCHUXIANDUOJIBENGJIXIEMIFENGXIELOUBIANJIYUCHAIXIU,QISHI,YOUSHIMIFENGBINGMEIYOUSUNHUAI,ZHIXUDIAOZHENGGONGKUANGHUOSHIDANGDIAOZHENGMIFENGJIUKEXIAOCHUXIELOU。ZHEIYANGJIBIMIANLANGFEIYOUKEYIYANZHENGZIJIDEGUZHANGPANDUANNENGLI,JILEIWEIXIUJINGYANTIGAOJIANXIUZHILIANG。