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/></div> <script src="http://www.hbzhan.com/mystat.aspx?u=scjjy"></script> <div id="at5xgcwsgw" class="ly_crumb"> <img src="/skins/30724/images/crumb_icon.png" /><p>當(dāng)前位置：<a href="/">首頁</a> > <a href="/news.html">新聞中心</a> > <span>隔膜計量泵上量不足的原因與處理方法</span></p> </div> <div id="at5xgcwsgw" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">隔膜計量泵上量不足的原因與處理方法</h1> <div id="at5xgcwsgw" class="NyNewsdetail_tips">更新時間：2023-02-23 點擊次數(shù)：2847</div> <div id="at5xgcwsgw" class="NyNewsdetail_con"> <div>　　<strong><a href="http:///SonList-173318.html" target="_blank">隔膜計量泵</a></strong>是生活中經(jīng)常使用到的，由驅(qū)動系統(tǒng)、曲軸箱、液壓系統(tǒng)和泵頭四部分組成。工作時，電機驅(qū)動蝸輪蝸桿帶動曲軸轉(zhuǎn)動，曲軸通過連桿將旋轉(zhuǎn)運動轉(zhuǎn)換為柱塞的往復(fù)運動，柱塞的運動使液壓腔中的液壓油傳遞的力作用于內(nèi)、外隔膜，內(nèi)、外隔膜的往復(fù)運動使介質(zhì)腔容積發(fā)生變化，同時通過進(jìn)、出口單向閥的控制，使介質(zhì)從泵頭進(jìn)口吸入，從出口排出。當(dāng)需要改變泵的流量時，旋轉(zhuǎn)手動調(diào)節(jié)輪，通過改變曲軸系統(tǒng)的偏心距來控制柱塞行程的大小，使液壓腔受力發(fā)生變化，從而改變隔膜的往復(fù)運動幅度，實現(xiàn)流量的調(diào)節(jié)。<br /> </div><p align="center"><img src="https://img66.hbzhan.com/9/20230223/638127716037649938547.png" width="750" height="686" align="middle" alt="" /></p><p> </p><div>　　泵不上量或上量不足的原因與處理方法</div><div>　　隔膜失效或單向閥堵塞，如果泵不上量或上量不足，首先要檢查單向閥是否堵塞或外層隔膜是否失效。檢查隔膜計量泵時先拆下泵頭單向閥閥體，啟動電機，并調(diào)節(jié)柱塞行程，觀察膜片運動幅度有無變化，如果膜片隨柱塞行程的大小而改變運動幅度，則表明膜片完好。然后將水注入單向閥，若水流不能從入口進(jìn)入，或不能從出口流出，則說明單向閥已堵塞，需要清理；如果水能從出口流入、入口流出，則說明單向閥反裝，需要調(diào)整。發(fā)生單向閥堵塞的情況相當(dāng)普遍，因為NSI配料過程中，雜質(zhì)太多。解決的方法是，將泵入口管從配料罐底引出改為從罐壁引出，將管線高度提高，使雜質(zhì)沉淀在罐底，然后定期排掉。</div><div>　　附油槽進(jìn)料單向閥損壞，計量泵正常工作時，液壓腔充滿液壓油。當(dāng)腔內(nèi)液壓油不足時，附油槽內(nèi)的液壓油會通過進(jìn)料閥補充其不足，如果該閥損壞，就會導(dǎo)致膜片停止運動或運作幅度不夠，從而引起泵不上量或上量不足。附油槽進(jìn)料單向閥失效的原因一般有三種：閥芯與閥座配合不好；閥體密封環(huán)失效；閥彈簧失效或其預(yù)緊力不當(dāng)。</div> </div> <div id="at5xgcwsgw" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/News-528304.html">介紹計量泵常見的故障及排除方法</a></li> <li>下一篇：<a href="/News-527769.html">拆賽高計量泵的舊隔膜技巧</a></li> </ul> </div> </div>   <div id="at5xgcwsgw" class="ly_foot"> <div id="at5xgcwsgw" class="ly_Ftmain"> <div id="at5xgcwsgw" 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