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src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990676972656/2521191.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ei3bdfm" 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>濱海新區(qū)泵用機械密封圖片大全,泵用機械密封</p><p><span>***更新：</span>2021-01-28 08:12:13</p><p><span id="click" >瀏覽次數(shù)：6次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="hproq87" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">伊格爾博格曼機械密封（張家港）有限公司</a></p><p><span>聯(lián)系人：</span>閆女士</p><p><span>郵箱: </span>eaglebugmann@qq.com</p><p><span>電話: </span>18013293108</p><p><span>傳真: </span>0512_</p><p><span>網(wǎng)址: </span>http://eaglebugmann.com</p><p><span>手機: </span>0512-58756006</p><p><span>地址: </span>德積福民村（天霸路）</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="33bn3pz" class="page-proshow02"><p class="title">詳細說明</p><div id="9uu88z8" class="box"><p><p> 核電站循環(huán)泵為了安全可靠，由有軸封泵改成無軸封泵。改進機械密封后因工作可靠，又由無軸封泵改回成有軸封泵，從而提高了電動機效率。這兩件事情充分說明機械密封雖然不是**性技術(shù)，但卻是決定性技術(shù)。二、密封件雖然不大，濱海新區(qū)泵用機械密封圖片大全，只是個零部件，但卻能決定機器設(shè)備的安全性、可靠性和耐久性在石油化工廠機泵釜中的軸封不大，一旦發(fā)生產(chǎn)品泄漏事故，不*會影響到機泵設(shè)備的工作，還會發(fā)生燃燒或，造成工藝裝置停工和人身傷亡等。三、機械密封在日常機泵釜等設(shè)備維修工作中，工作量約占50%通過對國內(nèi)外幾個石化企業(yè)的調(diào)查，都說明了在日常機泵釜等設(shè)備維修中，濱海新區(qū)泵用機械密封圖片大全，濱海新區(qū)泵用機械密封圖片大全，機械密封的維修工作量幾乎占50%。離心泵的維修費大約有70%是由于密封故障。機械密封的地位:據(jù)調(diào)查，石化工藝裝置機泵中有86%以上采用機械密封。隨著機械密封技術(shù)的發(fā)展，在機泵中機械密封將占有更加重要的地位。遵義化工泵用機械密封廠家。濱海新區(qū)泵用機械密封圖片大全</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濱海新區(qū)泵用機械密封圖片大全,泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990676972656/2521191.png"></div><p> 為了使機械密封做到密封性能可靠，使用壽命長，對其零件的尺寸、配合、形位公差等均有相應(yīng)的要求。關(guān)鍵尺寸一定要嚴格按公差要求加工，非關(guān)鍵尺寸在不影響密封性能和安裝尺寸的前提下，可適當降低要求，這對于降低成本、普及推廣機械密封技術(shù)均有好處。根據(jù)國內(nèi)技術(shù)標準規(guī)定的機械密封技術(shù)條件及制造水平，參考國外同類產(chǎn)品的加工尺寸及精度要求，對常用機械密封零件的公差配合及技術(shù)要求介紹如下。一、機械密封零件的公差與配合關(guān)于機械密封零件的公差與配合，以內(nèi)裝式泵用機械密封零件為例作介紹，其他結(jié)構(gòu)類型機械密封的主要零件配合及公差均可參考，并根據(jù)情況做適當調(diào)整，機械密封零件的公差與配合如圖9-1所示。①安裝機械密封軸徑公差；②彈簧座內(nèi)徑與軸公差；③推環(huán)內(nèi)徑與軸的配合公差；④推環(huán)接觸密封圈處端面的內(nèi)徑偏差；⑤推環(huán)接觸密封圈處端面的外徑偏差；⑥傳動套內(nèi)徑公差；⑦動環(huán)安裝密封圈處內(nèi)徑公差；⑧動環(huán)內(nèi)徑與軸的配合公差；⑨傳動套傳動的動環(huán)外徑公差；⑩撐環(huán)內(nèi)徑公差；?撐環(huán)外徑公差；?鑲環(huán)結(jié)構(gòu)配合公差（此公差*供參考，制造時應(yīng)根據(jù)實際情況核算確定公差尺寸）；?靜環(huán)外徑與壓蓋（或殼體）的配合公差；?靜環(huán)內(nèi)徑偏差；?靜環(huán)尾部與靜環(huán)座。濱海新區(qū)泵用機械密封圖片大全北京渣漿泵用機械密封型號。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濱海新區(qū)泵用機械密封圖片大全,泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990601464844/125984.png"></div><p> 西德EKATO公司的RD13、RD23、RD200ST和日本炭研精工的2K07T型都是上裝式密封，它們用于PTA、聚乙烯和聚丙烯裝置.上裝式釜用機械密封的典型結(jié)構(gòu)如圖10-1所示，這是EKATO公司RD200ST型釜用密封的結(jié)構(gòu)圖.這種密封是雙端面帶水冷來套的密封結(jié)構(gòu)，適用操作溫度為130~180℃.如果操作溫度在130℃以下，可以不用水冷夾套，而用上部冷卻風扇(圖3-38)，當操作溫度至300~400℃時，必須采用底部帶法蘭冷卻器(圖10-2)的結(jié)構(gòu)，這里法蘭冷卻器起了熱阻擋層的作用.在安裝冷卻水管線時，要注意冷卻水出口管線與漏斗間高度至少在200mm以上，出口處水的溫度應(yīng)低于40~50℃。有關(guān)釜用密封的密封液貯罐及壓力平衡裝置見第七章第二節(jié)壓力裝置.聚丙烯裝置第1號、2號反應(yīng)釜用攪拌器的機械密封如圖10-3所示.三、底裝式釜用機械密封反應(yīng)釜底部傳動的攪拌器用的機械密封是一種特殊結(jié)構(gòu)，因為密封上部要與產(chǎn)品接觸，所以工作條件更為苛刻.底裝式釜用機械密封的要求:1.在結(jié)構(gòu)上做到不使攪拌釜內(nèi)沉積在底部的固體介質(zhì)與機械密封相接觸;2.當密封失效時，不必排除釜內(nèi)液休也能卸除機械密封進行維修工作，能快速更換，并能在反應(yīng)釜帶壓下進行更換機械密封，還要求在不拆除笨重的傳動機構(gòu)情況下。</p><p> 單端面密封離心泵、雙端面密封離心泵后期的維護費用大概為屏蔽泵的2倍。綜上所述，單端面密封離心泵、雙端面密封離心泵、屏蔽泵在輸送甲醇危險物料時，安全性及經(jīng)濟性比較如下表3-1所示：表3-1：安全性及經(jīng)濟性比較分析表序號設(shè)備名稱軸封特點泄漏特性安全性經(jīng)濟性1單端面密封離心泵旋轉(zhuǎn)軸密封/一對摩擦副密封端面機封泄漏介質(zhì)直接泄漏到環(huán)境中一般設(shè)備投資低/維護高2雙端面密封離心泵旋轉(zhuǎn)軸密封/兩對摩擦副密封端面內(nèi)機封泄漏會先泄漏到外級機封，只有內(nèi)外兩級機封都泄漏時，介質(zhì)才會泄漏到環(huán)境中。良設(shè)備投資中/維護高3屏蔽泵無旋轉(zhuǎn)軸密封/無泄漏無泄漏優(yōu)設(shè)備投資高/維護低在石油、化工裝置對泵的要求，必須滿足對介質(zhì)特性的要求，要充分考慮輸送介質(zhì)的特性，工況環(huán)境的特點，安全環(huán)保的要求及經(jīng)濟成本進行綜合考慮。安全優(yōu)先，經(jīng)濟性為本。一般的場合，優(yōu)先選用單端面密封，因為單端面密封結(jié)構(gòu)簡單、使用方便、價格低。但在以下特殊的場合，就要嚴格按照要求選擇：（1）對輸送易燃、易爆、易揮發(fā)的低溫介質(zhì)（液化石油氣等）、有毒或貴介質(zhì)的泵要求軸封可靠或采用無泄漏泵。應(yīng)優(yōu)先選用無泄漏泵，如屏蔽泵、磁力泵或帶有泄漏液收集和泄漏報警裝置的雙重機封密封。因此。攀枝花福斯泵用機械密封泄露。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濱海新區(qū)泵用機械密封圖片大全,泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990586083984/8203619.png"></div><p> 泵吸入口處和葉片背面等處聚集氣體會導(dǎo)致流阻阻力增大甚至斷流，繼而使工況惡化，必需汽蝕量增加，氣體密度小，比容大，可壓縮性大，流變性強，離心力小，轉(zhuǎn)換能量性能差是引起泵工況惡化的主要原因。試驗表明，當液體中的氣量（體積比）達到3%左右時，泵的性能將出現(xiàn)陡降，當入口氣體達20%～30%時，泵完全斷流。離心泵允許含氣量（體積比）極限小于5%。葉輪形式因為石灰石漿液中含有氯離子(20000～60000)X10-6，pH值～7之間，濃度20%～35%之間，高達60%。脫硫泵的過流部件，必須選擇具有抗磨損和抗腐蝕的材料，(公眾號:泵管家)有襯膠、襯陶瓷、全金屬合金等材質(zhì)。脫硫泵一般采用懸臂式單級單吸離心泵，比轉(zhuǎn)速一般在250～350。葉輪可按照一般離心泵的方法設(shè)計，分閉式葉輪、開式葉輪等。考慮到電廠需要比較長的連續(xù)運行時間，故對泵的汽蝕和效率都有一定的要求。一般帶背葉片，降低密封腔壓力，降低磨損。由于介質(zhì)有強腐蝕性,葉輪的防腐措施：1.使用高分子材料包覆葉輪，可以保護葉輪不受腐蝕2.使用特種金屬制成3.使用高分子材料制作葉輪。目前國際上常用的是高分子材料包覆葉輪，具有非常好的耐磨耐腐蝕性。采用可調(diào)軸承座使軸向位置可調(diào)節(jié)。山西福斯泵用機械密封型號。濱海新區(qū)泵用機械密封圖片大全</p><p style="text-indent:25px">漢中蘇爾壽泵用機械密封選型。濱海新區(qū)泵用機械密封圖片大全</p><p> 釜用機械密封是解決攪拌軸密封的一種理想方式，按照密封面的對數(shù)，有單端面和雙端面機械密封之分。雙端面機械密封一般配上平衡循環(huán)系統(tǒng)，可使用在易燃、易爆、有毒及腐蝕、高真空等對密封要求更為嚴格的場合。機械密封的輔助裝置有調(diào)溫器、平衡罐(隔離流體容器)、強制循環(huán)平衡系統(tǒng)等。一、205型機械密封1、結(jié)構(gòu)特點反應(yīng)釜用205型機械密封為雙端面、多彈簧、、外流、傳動套傳動的釜用機械密封，采用非平衡型結(jié)構(gòu)。主要靠密封腔內(nèi)密封液與被密封介質(zhì)間的壓力差達到密封的目的，密封液另需一套裝置來循環(huán)，整個系統(tǒng)比較復(fù)雜。故*用于密封易燃易爆，有毒及較強腐蝕介質(zhì)的特殊場合。2、適用范圍被密封介質(zhì)：易燃、易爆有毒及較強腐蝕性介質(zhì)。密封腔壓力：P1≤被密封介質(zhì)壓力：P2=()Mpa密封腔溫度：-40℃~250℃線速度：≤20m/s二、206型機械密封1、結(jié)構(gòu)特點反應(yīng)釜用206型機械密封為雙端面、多彈簧、外流、傳動套傳動的釜用機械密封。206系大氣端平衡型結(jié)構(gòu)。其密封作用主要靠密封腔內(nèi)的密封液與介質(zhì)間的壓力差來達到。由于密封液的循環(huán)需另設(shè)一套循環(huán)裝置，故增加了系統(tǒng)的復(fù)雜性。所以只用于密封易燃、易爆、有毒及較強腐蝕性介質(zhì)對密封要求極嚴的特殊場合。濱海新區(qū)泵用機械密封圖片大全</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3047388.html</p></div></div></div></div></div><div id="rqnfcj8" class="page-right twoColRt"><div id="3heln3b" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rlnkht7" class="recomPic likePro"><a 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