常州計量泵密封市場批發(fā)價格歡迎來電漣水創(chuàng)密機械供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="安裝機械密封部位的軸（或軸套）的徑向跳動公差比較大不超過0.04～0.06mm。轉(zhuǎn)子軸向竄動不超過0.3mm。密封腔體與密封端蓋結(jié)合的定位端面對軸（或軸套）表面的跳動公差比較大不超過0.04～0.06mm。密封件的確認確認所安裝"><meta name="keywords" content="常州計量泵密封市場批發(fā)價格,封"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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href="http://www.cdcfah.com/cp/third-bengtc_bpjwp/">泵配件</a>?常州計量泵密封市場批發(fā)價格歡迎來電漣水創(chuàng)密機械供應(yīng)</p><div id="dxjxbpf" class="leftbox clearfix"><h1>常州計量泵密封市場批發(fā)價格歡迎來電漣水創(chuàng)密機械供應(yīng)</h1><div id="x7nlpf5" class="proBig"><div id="rvtrpbr" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="37fdzhd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="plrhxv5" 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>常州計量泵密封市場批發(fā)價格,封</p><p><span>***更新：</span>2020-10-14 03:06:36</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="hltjplb" 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="zpfdj5r" class="page-proshow02"><p class="title">詳細說明</p><div id="3dr5hxl" class="box"><p><p> <span style="font-size:12px;">安裝機械密封部位的軸（或軸套）的徑向跳動公差比較大不超過0.04～0.06mm。</span> </p> <p> 轉(zhuǎn)子軸向竄動不超過0.3mm。 </p> <p> <span style="font-size:12px;">密封腔體與密封端蓋結(jié)合的定位端面對軸（或軸套）表面的跳動公差比較大不超過0.04～0.06mm。</span> </p> <p> <span style="font-size:12px;"> 密封件的確認</span> </p> <p> 確認所安裝的密封是否與要求的型號一致。 </p> <p> 安裝前要仔細地與總裝圖對照，零件數(shù)量是否齊全。 </p> <p> 采用并圈彈簧傳動的機械密封，其彈簧有左、右旋之分，須按轉(zhuǎn)軸的旋向來選擇。 </p> <p> <span style="font-size:12px;"> 安裝</span> </p> <p> 安裝方法隨機械密封型式、機器的種類不同而有所不同，但其安裝要領(lǐng)幾乎都相同，安裝步驟和注意事項如下： </p> <p> <span style="font-size:12px;">安裝尺寸的確定</span> </p> <p> 安裝時，應(yīng)按產(chǎn)品的使用說明書或樣本，保證機械密封的安裝尺寸。 </p> <p> <span style="font-size:12px;">裝入前，軸（軸套）、壓蓋應(yīng)無毛刺，軸承狀況良好；密封件、軸，常州計量泵密封市場批發(fā)價格、密封腔、壓蓋都應(yīng)該清洗干凈。</span> </p> <p> 為減少摩擦阻力，軸上安裝機械密封的部位要薄薄地涂上一層油，以進行潤滑，考慮到橡膠O形圈的相溶性，若不宜用油，可涂肥皂水。浮裝式靜環(huán)不帶防轉(zhuǎn)銷的結(jié)構(gòu)，不宜涂油，應(yīng)干式裝入壓蓋。 </p> <p> <span style="font-size:12px;">先將靜環(huán)與壓蓋一起裝在軸上，注意不要與軸相碰，常州計量泵密封市場批發(fā)價格，然后將動環(huán)組件裝入。彈簧座或傳動座的緊定螺釘應(yīng)分幾次均勻擰緊。</span> </p> <p> 在未固定壓蓋之前，常州計量泵密封市場批發(fā)價格，用手推補償環(huán)作軸向壓縮，松開后補償環(huán)能自動彈回無卡滯現(xiàn)象，然后將壓蓋螺拴均勻地鎖緊。由于介質(zhì)和工作條件的不同，機械密封對耐高溫性能、耐高壓性能、耐腐蝕性能往往有著比較大的差距。常州計量泵密封市場批發(fā)價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州計量泵密封市場批發(fā)價格,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg"></div><p> 摩擦副材料在兩種特殊情況下的選用: </p> <p> 對連續(xù)運轉(zhuǎn)的設(shè)備,介質(zhì)內(nèi)若含有較多的固體顆粒,此時選用“硬對硬”結(jié)構(gòu)較好, 在實際應(yīng)用中選了YG6- YG6, 一般連續(xù)運轉(zhuǎn)壽命在800Oh以上; </p> <p> 對間歇性的運轉(zhuǎn)設(shè)備,摩擦副選用碳化鎢或碳化硅對特種石墨。 </p> <p> 對金屬波紋管部分進行適當?shù)臒崽幚砟芟附訋淼臍堄鄳?yīng)力,以避免長期運行過程中產(chǎn)生疲勞破裂. </p> <p> 由于在低溫條件下,摩擦副端面的氣化對機械密封性能影響很大,除選取較適合的材料外,合理選取端面比壓,主要是波紋管的壓縮量,一般比通常使用中所給的壓縮量大15%～30%為宜。在機械密封元件靠近大氣側(cè)通入25℃左右的冷卻水,以改善摩擦副潤滑環(huán)境。南通多級泵密封泵中常用的是橡膠O型圈。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州計量泵密封市場批發(fā)價格,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298412392578/7048929.jpg"></div><p> <p> 影響泵用機械密封的外部原因 </p> <p> 泵軸的軸向竄量 </p> 泵軸的撓度偏大 </p> <p> 沒有輔助沖洗系統(tǒng)或輔助沖洗系統(tǒng)設(shè)計不合理 </p> <p> 振動偏大及消除措施 </p> <p> <p> 泵氣蝕的原因及改進措施 </p> <p> <p> 在凝結(jié)過程中，由于體積急劇縮小，四周的液體以極大的速度沖向整個凝結(jié)空間，使泵內(nèi)造成沖擊振動和噪音。在壓力很大、頻率很高的液體質(zhì)點連續(xù)沖擊下，金屬表面逐漸因疲勞而破壞，這種破壞稱為剝蝕。 </p> <p> 同時溶于液體中的氧等活潑氣體也使金屬產(chǎn)生腐蝕。由于化學腐蝕與機械剝蝕的共同作用，加快了金屬損壞的速度，從而使葉輪受到破壞，這就是汽蝕破壞，這種由于液體的汽化和凝結(jié)而產(chǎn)生的沖擊現(xiàn)象就稱為氣蝕現(xiàn)象。消除泵進口氣蝕的措施有以下幾點： </p> <p> 提高泵的氣蝕性能水平，滿足現(xiàn)場裝置的氣蝕性能的要求。 </p> <p> 泵應(yīng)當在低于允許吸液高度下操作，以保證整個裝置安全可靠的運轉(zhuǎn)。 </p> <p> 采用抗氣蝕材料制造葉輪，如：2Cr13、稀土合金鑄鐵、高鎳鉻合金材料等，比普通鑄鐵的抗氣蝕能力要好得多。 </p> <p> <br /> </p> <p> <br /> </p> </p> </p><p> 結(jié)合設(shè)計經(jīng)驗以及對API 682標準的研究，對泵用機械密封的選型要點進行了分析，主要包括密封類型、密封形式、布置方式、沖洗方案等。進而對煉油裝置中的高溫熱油泵、高溫熱水泵以及強酸強堿泵機械密封及輔助系統(tǒng)的選型提出了合理化建議，對API 682中的PLAN53B和PLAN23進行了改進，使之更好地為機械密封服務(wù)，有利于機械密封長期穩(wěn)定運行。 </p> <p> 由于機械密封具有密封性能好、工作可靠、泄漏量小、功率消耗少等特點，因而在國內(nèi)外煉油化工生產(chǎn)的旋轉(zhuǎn)設(shè)備中得到了較大規(guī)模的應(yīng)用，已經(jīng)成為泵、壓縮機、反應(yīng)釜、攪拌器等工藝設(shè)備能否正常運轉(zhuǎn)的關(guān)鍵部件。 </p> <p> 隨著環(huán)境保護和人類健康要求的提高，煉油裝置中對泵用機械密封的要求也在不斷提高。據(jù)統(tǒng)計，煉油裝置中機泵故障的40% 以上是由于機械密封發(fā)生泄漏而引起的。造成這一現(xiàn)象的原因，一是作為機泵中的動密封其本身所處的工作條件、起的作用所決定；二是許多國內(nèi)設(shè)計單位以及工程公司認為機械密封及系統(tǒng)的選用是泵廠和密封廠的責任，往往對密封的類型、布置方式、沖洗方案了解不深，難以制定機械密封的選配方案，造成部分密封選型不當。 </p> <p> <br /> 裝O形圈的溝槽尺寸超差，尤其是深度尺寸過大時，使O形圈安裝后壓縮變形量不足而影響密封能力。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州計量泵密封市場批發(fā)價格,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293743222656/8640266.jpg"></div><p> 高溫熱油泵 </p> <p> 對于煉油裝置中有一部分泵的介質(zhì)溫度均在200°C以上，有的甚至超過300 °C，此時若機械密封沖洗方案的選擇為PLAN53B，應(yīng)多加考慮PLAN53B 系統(tǒng)中蓄能器皮囊的耐溫問題。通常情況下，蓄能器皮囊若為普通橡膠材質(zhì)，耐溫不超過120 °C，即使是氟橡膠耐溫也不超過200 °C。 </p> <p> API 682 中PLAN53B 系統(tǒng)的布置方式如圖1 所示，從圖中可以看出高溫的密封隔離液從密封腔直接經(jīng)過蓄能器，然后再經(jīng)過冷卻器，再回到密封腔。此種布置方式在隔離液溫度升高之后，可能會導致蓄能器內(nèi)介質(zhì)溫度升高，致使皮囊失效。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。南通多級泵密封</p><p style="text-indent:25px">機械密封在流體機械中發(fā)揮著非常重要的作用，可以有效防止機械內(nèi)部的介質(zhì)流出泵外。常州計量泵密封市場批發(fā)價格</p><p> 汽、柴油泵用機械密封 </p> <p> 多彈簧機械密封靜止結(jié)構(gòu) </p> <p> 該類泵的機械密封采用靜止結(jié)構(gòu)（溫度高于200℃泵采用波紋管結(jié)構(gòu)）。一是避免由于高速攪拌產(chǎn)生的熱量；二是防止彈簧傳遞扭矩。 </p> <p> 摩擦副材料的選取。 </p> <p> 對摩擦副材料的選取我們采用“WC-C”結(jié)構(gòu)。在選擇輔助密封材料時要考慮以下主要因素： </p> <p> 良好彈性，壓縮長久變形??； </p> <p> 耐高溫，在高溫下不粘著； </p> <p> 與介質(zhì)相容，不易產(chǎn)生溶脹、硬化等； </p> <p> 摩擦系數(shù)小，有良好的機械性能。 </p> <p> 同過比較，我們選擇了耐溫較高的氟橡膠（溫度范圍-20℃-200℃）。 </p> <p> 輔助密封措施 </p> <p> 輕油泵機械密封輔助措施我們采用了密封腔夾套冷卻、無折流板急冷。 </p> <p> 常州計量泵密封市場批發(fā)價格</p><p style="text-indent:25px">漣水創(chuàng)密機械制造有限公司致力于機械及行業(yè)設(shè)備，是一家貿(mào)易型的公司。創(chuàng)密機械制造致力于為客戶提供良好的輕型密封，中型密封，重型密封，小型水泵，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事機械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。創(chuàng)密機械制造立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1543486.html</p></div></div></div></div></div><div id="nbbznjn" class="page-right twoColRt"><div id="rhndbhx" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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