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耐腐蝕化工泵的原因故障與檢修方法?。。?/title> <div align="center"><span style="font-size:14px">作者: 來源: 發(fā)布時間:2018-07-24</span></div> <p> </p> <p style="line-height: 2em;"><span style="font-size: 16px;">1、、機泵正常運行時,冷卻水開多大才合適?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">機泵在正常工作時,冷卻水開啟大小以排水溫度為40℃左右合適。此時用手接觸排出水有點溫度,冷卻效果佳。特別是端面密封的冷卻水不能在冬天開得太大,以防止動、靜環(huán)的密封圈因水溫低而硬化,喪失彈性使密封失效。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">2、什么情況下電機要緊急停車?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">電機冒煙或有臭味、起火時。機身或軸承發(fā)熱到極限時。發(fā)生很大的振動或軸向串動時。危及人身安全時。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">3、軸承箱發(fā)熱的原因有哪些?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">泵軸與電機軸不同心。潤滑油(脂)過多或過少,油(脂)變質(zhì)。帶油環(huán)破碎或跳出固定位置。軸向推力增大。冷卻水不足或中斷。軸承磨損。流量太小,使泵近于抽空狀態(tài)。基礎(chǔ)不牢,轉(zhuǎn)子不平衡,螺栓松動等原因引起的機泵振動。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">4、泵在冬天為什么要防凍?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">水在零度以下發(fā)生體積膨脹,如果留在泵體內(nèi)的水不清理出去,低溫下的體積膨脹產(chǎn)生的力量會使泵體脹裂,造成不必要的損壞。排凈閑置泵內(nèi)的存水。保持冷卻水細水長流。對泵保溫或用蒸汽、熱水伴熱。備用泵保持出入口流通。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">5、解釋國產(chǎn)的離心油泵的型號,例100YⅡ--100×2A是表示什么?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">100--泵吸入口直徑 Y--單級離心泵 Ⅱ--泵用材料代號,第二種碳鋼不耐腐蝕溫度200~400℃ A--葉輪外徑第一次車削</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">6、離心泵抽空時有什么現(xiàn)象?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">運行中的泵開始抽空時,會突然發(fā)出噪音、振動,并伴有壓力、流量的降低和電流減小。抽空嚴重時,泵會發(fā)生強烈振動,壓力回零,泵中無液體打出。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">7、怎樣判別汽蝕現(xiàn)象?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">泵體振動。泵內(nèi)出現(xiàn)激烈響聲。出口壓力不穩(wěn)、嚴重時打不上量。介質(zhì)溫度升高 </span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">8、封油的作用是什么?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">冷卻密封零件;潤滑摩擦付;防止抽空破壞。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">9、泵凍了以后如何處理?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">泵凍了以后,決不能用蒸汽直接吹,以防因泵體熱脹不均而破裂。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">泵凍了以后先用冷水澆,然后待盤動車,可以用蒸汽或熱水澆淋。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">10、泵體為什么要冷卻?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">機泵在運行中液體與泵體產(chǎn)生的流動摩擦,轉(zhuǎn)動部分與固定部分如軸承的滾珠與內(nèi)外圈、軸套與填料等部分會產(chǎn)生摩擦,因摩擦會產(chǎn)生熱量,同時由于介質(zhì)溫度高傳導給機泵,使泵體發(fā)熱,冷卻的目的是降低泵體、泵座、軸承箱、軸封處溫度,防止這些部位因溫升而變形、老化和損壞。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">11、備用泵為什么要定期盤車?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">定期盤車的作用有三個:防止泵內(nèi)生垢卡??;防止泵軸變形;盤車還可以把潤滑油帶到各潤滑點,防止軸生銹,軸承得到了潤滑有利于在緊急狀態(tài)下馬上開車。</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">12、運行中的離心泵異常發(fā)熱的原因有哪些?</span></p> <p style="line-height: 2em;"><span style="font-size: 16px;">發(fā)熱是機械能轉(zhuǎn)化為熱能的表現(xiàn),引起機泵異常發(fā)熱的常見原因有:伴有雜音的發(fā)熱,通常是軸承滾珠隔離架損壞。泵體內(nèi)有異物。軸承箱中的軸承擋套松動,前后壓蓋松動,因摩擦引起發(fā)熱。轉(zhuǎn)子振動大,使密封環(huán)磨損。泵抽空或泵的負荷太大。轉(zhuǎn)子不平衡。潤滑油太多或太少及油質(zhì)不合格。軸承孔過大,引起軸承外圈松動。</span></p> <p> </p> </div> </div> </div> <div id="50wzomrf" class="chanpin-right"> <h1>資訊新聞中心</h1> <ul> <li><a href="/bengfaxinwen/" alt="">新聞資訊</a></li> <dd><a href="/telongzixun/" alt="">皖金資訊</a></dd> <dd><a href="/bengfaxinwen/" alt="">行業(yè)新聞</a></dd> <dd><a href="/bengfawenda/" alt="">泵閥百科</a></dd> <li><a href="/jinpaikehu/" alt="">客戶中心</a></li> <dd><a href="/jinpaikehu/" alt="">金牌客戶</a></dd> <li><a href="/ziliaoxiazai/" alt="">資料下載</a></li> <dd><a href="/zizhizhengshu/" alt="">資質(zhì)證書</a></dd> <dd><a href="/chanpinyangben/" alt="">產(chǎn)品樣本</a></dd> </ul> <div id="50wzomrf" class="cont-right"> <img src="/images/kefu.jpg"> <p>安徽皖金泵閥制造有限公司</p> <p>聯(lián)系電話:0563-5511202</p> 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