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class="NyNewsdetail_tips">更新時間：2020-09-08 點擊次數(shù)：3049</div> <div id="h9bpkuijf" class="NyNewsdetail_con"> <div>　　<strong>計量泵的種類特點：</strong><br /> </div><div>　　根據計量泵液力端的結構類型，常將計量泵分成柱塞式、液壓隔膜式、機械隔膜式和波紋管式四種。<br /> </div><div>　?、僦接嬃勘谩Ｅc普通往復泵的結構基本一樣，其液力端由液缸、柱塞、吸入和排出閥、密封填料等組成，除應滿足普通往復泵液力端設計要求外，還應對泵的計量精度有影響的吸人閥、排出閥、密封等部件進行精心設計與選擇。<br /> </div><div>　?、谝簤焊裟な接嬃勘?。通常稱為隔膜計量泵。單隔膜計量泵在柱塞前端裝有一層隔膜(柱塞與隔膜不接觸)，將液力端分隔成輸液腔和液壓腔。輸液腔連接泵吸入、排出閥，液壓腔內充滿液壓油(輕質油)，并與泵體上端的液壓油箱(補油箱)相通。當柱塞前后移動時，通過液壓油將壓力傳給隔膜并使之前后撓曲變形引起容積的變化，起到輸送液體的作用及滿足精確計量的要求。<br /> </div><div>　?、蹤C械隔膜式計量泵。其隔膜與柱塞機構連接，無液壓油系統(tǒng)，柱塞的前后移動直接帶動隔膜前后撓曲變形。<br /> </div><div>　?、懿y管式計量泵。結構與機械隔膜計量泵相似，只是以波紋管取代隔膜，柱塞端部與波紋管固定在一起。當柱塞往復運動時，使波紋管被拉伸和壓縮，從而改變液缸的容積，達到輸液與計量的目的。</div><div align="center"><img src="http://img74.hbzhan.com/2/20200723/637311190952247172263.png" alt="" width="455" height="316" align="" border="0" /></div><div>　　調節(jié)方式：<br /> </div><div>　　計量泵常用的流量調節(jié)方式有調節(jié)柱塞(或活塞)行程、調節(jié)柱塞往復次數(shù)或兼有以上兩種方式等三種方法，其中以調節(jié)行程的方式應用廣泛。該方法簡單、可靠，在小流量時仍能維持較高的計量精度。行程調節(jié)方式有以下三種。<br /> </div><div>　　①停車手動調節(jié)。在停車時手動調節(jié)計量泵的行程。<br /> </div><div>　?、谶\轉中手動調節(jié)。在泵運轉中改變軸向位移，以間接改變曲柄半徑，達到調節(jié)行程長度的目的。常用方式有N形曲軸調節(jié)、L形曲軸調節(jié)和偏心凸輪調節(jié)等。<br /> </div><div>　　③運轉中自動調節(jié)。常見的有氣動控制和電動控制兩種。氣動控制是通過改變氣源壓力信號達到自動調節(jié)行程的目的。電動控制是通過改變電信號達到自動調節(jié)行程的目的。</div> </div> <div id="h9bpkuijf" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-700862.html">論氣動隔膜泵的故障如何排除</a></li> <li>下一篇：<a href="/Article-695643.html">常見的隔膜計量泵故障解決方法有哪些</a></li> </ul> </div> </div>  <div id="h9bpkuijf" class="ly_foot"> <div id="h9bpkuijf" class="ly_Ftmain"> <div id="h9bpkuijf" class="ly_Ftcon"> <div id="h9bpkuijf" class="ly_FtLeft"> <ul> <li> <div id="h9bpkuijf" class="Ft_tit">關于我們</div> <a href="/aboutus.html" rel="nofollow">公司簡介</a> <a href="/news.html">新聞中心</a> <a href="/article.html">技術文章</a> </li> <li> <div id="h9bpkuijf" 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