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如何维护保养自吸排污泵及常见水泵故障的排除 一、自吸排污泵的维护保养 1)检查自吸泵管路及结合处有无松动现象。用手或工具转动自吸泵,试看排污泵是否灵 活。 2)尽量控制自吸泵的流量和扬程在标牌上注明的范围内, 以保证自吸泵在最高效率点运 转,才能获得最大的节能效果。 3)自吸泵在运行过程中,轴承温度不能超过环境温度 35C,最高温度不得超过 80C。 4)如发现自吸泵有异常声音应立即停车检查原因。 5)排污泵要停止使用时,先关闭闸阀、压力表,然后停止电机。 6)自吸排污泵在长时间不用和在寒冬季节使用时,停车后,需将泵体下部放水螺塞拧开 将介质放净。防止冻裂。(如是污水请用清水把泵腔清洗干净) 7)认真细听电动机的运行声音是否异常,因运行时机房噪音较大,可借助于螺丝刀或听 棒等辅助工具,贴亲电动机两端听,如果经常听,不但能发现电动机及其拖动设备的不良振 动,连内部轴承油的多少都能判断,从而及时作出添加轴承油,或更换新轴承等相应的措施 处理,避免电动机轴承缺油干磨而堵转、走外圆、扫膛烧坏。 二、水泵故障的排除 a,水泵的扬程不够 1、不锈钢自吸泵输送腐蚀性液体时用的叶轮腐蚀严重?换新叶轮 2、泵的性能达不到设计要求?换符合设计要求的博禹泵 3、转速不足?检查电流,恢复转速 4、半开式叶轮与泵盖间隙太大?减小间隙 b,水泵震动严重 1、泵与电机轴不同心?调正,对准泵与电机轴心 2、泵轴弯曲?拆下校直或换新的 3、叶轮不平衡?拆下找平衡 c,水泵轴承过热 1、润滑油(脂)没有或不够?加润滑油(脂)至要求标准 2、泵与电机轴不同心?调正,对准泵与电机轴心 3、轴承损坏?换新博禹泵用轴承 三、水泵机械密封泄漏严重 1、弹簧压力不足?重新调整弹簧压缩量或换弹簧 2、动换或静环端面腐蚀、磨损或刮伤?修复或更换坏的动环静环 3、固定螺钉松动,使弹簧失去作用?紧固螺钉或重新调整弹簧 4、动环密封圈装配斜卷或腐蚀变形?重装或更换博禹泵用动环密封圈 5、静环装配歪斜?重装博禹泵用静环 6、轴套加工精度和光洁度不够,影响了动环的轴向移动?换加工精度合格的轴套 7、杂质、异物或介质结晶影响了动环的轴向移动或支撑在动、静环的端面之间?消除 杂质、异物和结晶,彻底清洗密封元件 四、水泵填料密封泄漏严重 1、填料压的太松?上紧填料压盖至适当程度 2、填料装置不好?调整填料搭口,使之错开一定角度不在一个方向 3、填料大小不一或磨损严重?更换统一型号的博禹填料 4、填料质量差密封性不好?更换符合要求的石棉填料 5、轴套磨损太多?更换轴套 五、水泵用电机过热 1、使用范围(流量、扬程)超过泵的设计要求?按系列型谱选合适的电机 2、介质比重超过泵的配置电机?配置合适的博禹泵用电机 3、填料压盖压的太紧或机械密封弹簧调的太紧?重新调整压盖或机械密封的弹簧压缩 量 4、泵装配质量差,有摩擦处或电机与泵轴不同心?
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