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離心泵的這些知識,你掌握了么?
發布日期:2020-07-27 23:55:00 點擊數:2483新聞來源:

化工離心泵一般適用于化工廠以及化工行業,常用的化工離心泵材質有不銹鋼、氟塑料材質或者碳鋼等。每一種材質的化工離心泵的用途都不一樣,要根據實際輸送介質來決定。由于化工離心泵輸送的介質往往有毒、有害、有腐蝕性,具有高溫或低溫,因此要求化工離心泵能滿足化工工藝需求,無泄漏或少泄漏, 耐腐蝕、耐磨損,耐高溫或低溫,能輸送臨界狀態的液體,運行可靠。
常見故障原因分析及處理

造成離心泵故障的原因多種多樣,常見的有選型不合理及設備固有故障、安裝、啟動和運行故障。例如,因選型不合理造成泵超功率;因設計制造缺陷造成泵氣蝕嚴重和流量不足;因安裝故障造成泵的振動與噪聲嚴重超標;因泵的啟動和運行故障造成泵不能正常啟動及出水量逐漸減少、填料發熱、軸承過熱等。
泵運轉聲音異常或振動過大 泵正常運轉時,泵和電機組成的小機組應是平穩的,聲音應當是正常的。如果這個小機組有雜音或異常振動,則往往是泵故障的先兆,應立即停機檢查,排除隱患。

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軸承過熱:如果在泵的運行中發現軸承燙手,則可在下面幾項中排查其原因:泵與電動不同心、聯軸器對中不良或軸向間隙太小,方法是檢查對中情況和調整軸向間隙、潤滑油量不足或潤滑油循環不良、潤滑油質量差、有雜質使軸承銹蝕、磨損,轉動不靈活、軸承已嚴重磨損、軸瓦刮研的不好,則應取出軸瓦重新刮研或更換新軸瓦、軸承間隙過小,則應重新調整軸承間隙或刮研軸瓦、軸承裝配不良,則應按要求檢查軸承裝配情況,消除不合要求的因素、冷卻水斷路,則應立即檢查修理冷卻水裝置、泵軸彎曲,則應矯正泵軸等因素。
離心泵的日常診斷

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