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href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_bengtc/">泵</a>?<a href="http://www.cdcfah.com/cp/third-bengtc_bpjwp/">泵配件</a>?常州管道泵密封源頭直供廠家推薦咨詢漣水創(chuàng)密機械供應(yīng)</p><div id="33ubiut" class="leftbox clearfix"><h1>常州管道泵密封源頭直供廠家推薦咨詢漣水創(chuàng)密機械供應(yīng)</h1><div id="vzl8li2" class="proBig"><div id="kogifhb" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="rfhzw2r" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lk882rb" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>常州管道泵密封源頭直供廠家,封</p><p><span>***更新：</span>2020-08-30 08:07:34</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="fjldpo3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">漣水創(chuàng)密機械制造有限公司</a></p><p><span>聯(lián)系人：</span>袁經(jīng)理</p><p><span>郵箱: </span>lscmjx@163.com</p><p><span>電話: </span>15250888877</p><p><span>傳真: </span>153_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>153-66621921</p><p><span>地址: </span>高溝鎮(zhèn)高揚民營經(jīng)濟產(chǎn)業(yè)園</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8e7imj4" class="page-proshow02"><p class="title">詳細說明</p><div id="yw3bcos" class="box"><p><p> 泵用機械密封選型要點 </p> <p> 美國石油協(xié)會API 682(Pumps-Shaft Sealing Systems for Centrifugal and Rotary Pumps)標準中對機械密封的類別(Categories)、類型(Types)、布置方式(Arrangements)、沖洗方案(Flush plans)等進行了分類，在工程應(yīng)用中機械密封的選型也應(yīng)注重以上要點進行分析，常州管道泵密封源頭直供廠家。 </p> <p> 另外，機械密封的 pV 值是選擇、使用和設(shè)計機械密封的重要參數(shù)，功耗，常州管道泵密封源頭直供廠家、磨損與溫升都與該值有關(guān)，常州管道泵密封源頭直供廠家。pV 值越高，機械密封的技術(shù)水平及難度系數(shù)越高。 </p> <p> 機械密封類別(Categories)的選擇 O形密封圈安裝在溝槽和被密封面之間，有一定壓縮量，產(chǎn)生的反彈力給予光滑面和溝槽底面初始的壓縮應(yīng)力。常州管道泵密封源頭直供廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州管道泵密封源頭直供廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg"></div><p> 在分析泵用機械密封泄漏時，不僅要考慮機械密封的內(nèi)因，而且要考慮機械密封的外因。在實際工作中要注意以下幾個問題： </p> <p> 使用正規(guī)廠家生產(chǎn)的泵，因為正規(guī)廠家生產(chǎn)的泵完全按照泵設(shè)計標準來制造的，在使用材料上不會偷工減料，有一定的保質(zhì)期。 </p> <p> 維修工應(yīng)增加對機械密封輔助系統(tǒng)的重要作用和認識，盡可能配備完善的機械密封輔助系統(tǒng)，以提高密封效果。 </p> <p> 在分析機械密封泄漏的原因時，要充分考慮到泵的其它零部件對機械密封運行的影響，采取措施不斷提高機械密封的效果。常州管道泵密封源頭直供廠家與密封件相對滑動零件的幾何位置精度(同心度)高材質(zhì)好(如鍍硬鉻)和表面粗糙度較細可延長使用壽命。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州管道泵密封源頭直供廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298179248047/5187331.jpg"></div><p> <br /> </p> <p> 化工泵油封是一種自緊式唇狀密封，其結(jié)構(gòu)簡單，尺寸小，成本低廉，維護方便，阻轉(zhuǎn)矩較小，既能防止介質(zhì)泄漏，也能防止外部塵土和其它有害物質(zhì)侵入，而且對磨損有一定的補償能力，但不耐高壓，所以一般用在低壓場合的化工泵上。 </p> <p> 化工泵依靠離心原理來抽取液體物料，特殊材料制成的化工泵適用于瓶、桶、缸、池或其他容器中抽取腐蝕性液體。由于化工泵所抽取的介質(zhì)有腐蝕、揮發(fā)、等危險性的存在，對泵體的密封性能要求，要比其他種類的泵高很多。 </p> <p> 化工泵油封應(yīng)安裝在制造精度為h8～h9，表面粗糙度為1.6～0.8μm且經(jīng)過表面硬化處理的軸上。密封介質(zhì)不應(yīng)含有固體微粒和雜質(zhì)，否則會造成油封和軸的迅速磨損而使密封失效。 </p> <p> 在選擇此種密封方法是，要充分考慮化工泵所輸送到物料的性能和要求，以避免不必要的泄漏，防止意外的發(fā)生。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p><p> 泵用機械密封是精密的部件，制造精度及安裝精度要求都很嚴格，如果裝配不當就會影響密封性能，要正確安裝必須注意以下幾點： </p> <p> 泵用機械密封的冷卻和沖洗 </p> <p> 第一種冷卻形式由水泵的出口或高壓端，將輸送的干凈介質(zhì)，直接沖洗密封端面，然后進入泵腔內(nèi)，通過介質(zhì)的不斷循環(huán)，將磨擦端面的的磨擦熱帶走達到冷卻的效果。 </p> <p> 第二種冷卻方式在第一種冷卻形式的基礎(chǔ)上在靜環(huán)的背部增加一冷卻水套，冷卻效果有所改善，并可以沖洗，收集泄露出來的液體。當密封介質(zhì)溫度＞150℃時除了在冷卻水套中通過冷卻水及靜環(huán)背部冷卻外，應(yīng)采取強制冷卻措施。即從泵出口的干凈介質(zhì)應(yīng)預(yù)先經(jīng)熱交換器冷卻至50℃時。再進入密封腔冷卻沖洗，該形式是冷卻效果**良好的一種。 </p> <p> 如介質(zhì)中含有顆?；螂s質(zhì)，必須采用過濾措施，把常溫干凈沖洗液輸入密封腔內(nèi)。機械密封的密封面要有一定的比壓，從而達到密封的目的，兩端面的緊密緊密程度可以通過彈簧調(diào)節(jié)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州管道泵密封源頭直供廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293279589844/7625641.jpg"></div><p> 墊片密封機理： </p> <p> 泄漏即介質(zhì)從有限空間內(nèi)部流到外部，或從外部進入有限空間內(nèi)部的人們不希望發(fā)生的現(xiàn)象 ,介質(zhì)流動通過內(nèi)外空間的交界面即密封面發(fā)生泄漏。造成泄漏的根本原因是由于接觸面上存在間隙，而接觸面兩側(cè)的壓力差、濃度差則是泄漏的推動力。由于密封面形式及加工精度等因素的影響，密封面上存在間隙在所難免，這就會造成密封面不完全吻合，從而發(fā)生泄漏。要減少泄漏，就必須使接觸面很大程度地嵌合，即減小泄漏通道的截面積，增加泄漏阻力，并使之大于泄漏推動力。 </p> <p> 對密封面施加壓緊載荷，以產(chǎn)生壓緊應(yīng) 力，可提高密封面的接觸程度，當應(yīng)力增大到足以引起表面產(chǎn)生明顯的塑性變形時，就可以填補密封面的間隙，堵塞泄漏通道。使用墊片的目的就是利用墊片材料在壓緊載荷的作用下較容易產(chǎn)生塑性變形的特性，使之填平法蘭密封面的微小凹凸不平，從而實現(xiàn)密封。在密封面處由于干摩擦、冷卻水突然中斷，雜質(zhì)進入密封面、抽空等情況下，都會導致環(huán)面出現(xiàn)徑向裂紋。常州管道泵密封源頭直供廠家</p><p style="text-indent:25px">泵在停一段時間后再啟動時泄漏，因為摩擦副附近介質(zhì)的凝固、結(jié)晶，摩擦副上有水垢、彈簧腐蝕、阻塞而失彈。常州管道泵密封源頭直供廠家</p><p> 在煤制油化工裝置中，存在許多有害、易燃、易爆介質(zhì)，如甲醇、乙烯、硫化氫一氧化碳、輕烴等。機泵輸送此類介質(zhì)對密封要求較高，按照現(xiàn)代的管理要求，不允許泄露。 </p> <p> 目前，使用技術(shù)一般有三類，采用無泄漏泵如屏蔽泵、磁力泵、隔膜泵等，對于必須使用離心泵時，采用雙重機械密封或干氣密封?；旧洗蟛糠诌m用雙封的場合都可以使用干氣密封，在技術(shù)上來講都是可行的。 </p> <p> 那么雙重密封與干氣密封，哪個更好，常常困擾許多使用者。本文以神華某煤化工項目凈化裝置煤化工凈化裝置主洗泵為例，對雙重密封和干氣密封進行一下簡單的對比，希望能為更多在此領(lǐng)域的用戶提供選擇的參考。 </p> <p> <br /> 常州管道泵密封源頭直供廠家</p><p style="text-indent:25px">漣水創(chuàng)密機械制造有限公司成立于2014-07-02，是一家貿(mào)易型的公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下輕型密封，中型密封，重型密封，小型水泵深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在機械及行業(yè)設(shè)備深耕多年，以技術(shù)為先導，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造機械及行業(yè)設(shè)備質(zhì)量品牌。創(chuàng)密機械制造秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，***打造公司的核心競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1091989.html</p></div></div></div></div></div><div id="wvsikh4" class="page-right twoColRt"><div id="gj8z8y3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8wqbnzo" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="6zbd2ed" class="recomPic likePro"><a 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