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href="http://www.cdcfah.com/cp/third-mifengjian_jmf/">機(jī)械密封</a>?太原石油煉化行業(yè)泵用機(jī)械密封伊格爾博格曼機(jī)械密封供應(yīng)</p><div id="emdz33w" class="leftbox clearfix"><h1>太原石油煉化行業(yè)泵用機(jī)械密封伊格爾博格曼機(jī)械密封供應(yīng)</h1><div id="74ljqri" class="proBig"><div id="sfbnjkq" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990492705078/8878366.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="nl328hy" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990492705078/8878366.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wzl3bzf" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>太原石油煉化行業(yè)泵用機(jī)械密封,泵用機(jī)械密封</p><p><span>***更新：</span>2021-01-31 00:26:09</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="sawiuq2" 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(jī)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(jī): </span>0512-58756006</p><p><span>地址: </span>德積福民村（天霸路）</p><p>[當(dāng)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="8hnz2nz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ylhdklr" class="box"><p><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(jī)械密封的典型結(jié)構(gòu)如圖10-1所示，太原石油煉化行業(yè)泵用機(jī)械密封，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(fēng)扇(圖3-38)，當(dāng)操作溫度至300~400℃時(shí)，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(shí)，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(hào)，太原石油煉化行業(yè)泵用機(jī)械密封、2號(hào)反應(yīng)釜用攪拌器的機(jī)械密封如圖10-3所示.三、底裝式釜用機(jī)械密封反應(yīng)釜底部傳動(dòng)的攪拌器用的機(jī)械密封是一種特殊結(jié)構(gòu)，因?yàn)槊芊馍喜恳c產(chǎn)品接觸，所以工作條件更為苛刻.底裝式釜用機(jī)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(jī)械密封相接觸;2.當(dāng)密封失效時(shí)，不必排除釜內(nèi)液休也能卸除機(jī)械密封進(jìn)行維修工作，能快速更換，太原石油煉化行業(yè)泵用機(jī)械密封，并能在反應(yīng)釜帶壓下進(jìn)行更換機(jī)械密封，還要求在不拆除笨重的傳動(dòng)機(jī)構(gòu)情況下。內(nèi)蒙古水泵用機(jī)械密封型號(hào)。太原石油煉化行業(yè)泵用機(jī)械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太原石油煉化行業(yè)泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990492705078/8878366.png"></div><p> 在國產(chǎn)離心泵上得到了***的應(yīng)用。本教材以這兩種國產(chǎn)機(jī)械密封為主，結(jié)合其它結(jié)構(gòu)型式（包括進(jìn)口的密封），就有關(guān)的技術(shù)問題和故障分析。第二節(jié)機(jī)械密封的基本元件密封環(huán)是動(dòng)環(huán)和靜環(huán)的總稱（下同），是構(gòu)成機(jī)械密封**主要的元件。一、密封環(huán)在很大程度上決定了機(jī)械密封的使用性能和壽命，對它提出了一些要求。1）有足夠的強(qiáng)度和剛度。在工作條件下（如壓力、溫度和滑動(dòng)速度等）不損壞，變形應(yīng)盡量的小，工作條件波動(dòng)時(shí)仍能保持密封性。2）密封端面應(yīng)有足夠的硬度和耐腐蝕性，以保證工作條件下有滿意的使用壽命。3）密封環(huán)應(yīng)有良好的耐熱沖擊能力。為此，要求材料有較高的導(dǎo)熱系數(shù)和較小的線膨脹系數(shù)，承受熱沖擊時(shí)不至于開裂。4）密封環(huán)匹配應(yīng)有較小的摩擦系數(shù)和良好的自潤滑性，密封環(huán)材料與密封流體還要有很好的浸潤性。工作中如發(fā)生短時(shí)間的干摩擦，不損傷密封端面。5）密封環(huán)應(yīng)力求簡單、對稱并優(yōu)先考慮用整體型結(jié)構(gòu)。也可采用組合式（如鑲裝式）密封環(huán)，盡量避免用密封端面噴涂式結(jié)構(gòu)。6）密封環(huán)要容易加工制造，安裝和維修要方便，價(jià)格要低廉。二、摩擦副匹配要考慮的因素摩擦副一般都選擇一軟一硬的配對。目前軟環(huán)多選用破一石墨（以下簡稱石墨）。太原石油煉化行業(yè)泵用機(jī)械密封山西脫硫泵用機(jī)械密封型號(hào)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太原石油煉化行業(yè)泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990554648437/1913587.png"></div><p> 而用于高速泵的機(jī)械密封尺寸一般都在2in左右.高速泵用的機(jī)械密封以美國約翰克蘭公司(JohnCranePackingCompany)的9AB型密封**為典型[圖10-17(a),(b)]，這種密封常用在美國Sundstrand公司高速泵的齒輪箱和泵體的密封上.為了節(jié)省空間并獲得較高的重量與功率比，無論泵的結(jié)構(gòu)和機(jī)械密封結(jié)構(gòu)都很緊湊，一般石油化工公司都引進(jìn)這種高速泵‘，目前揚(yáng)子石油化工公司有關(guān)裝置使用51臺(tái)(見表3-41)，中國石油化工總公司系統(tǒng)使用近200臺(tái)。圖中60C用于齒輪箱密封，60A或60A+60B用于泵葉輪端密封.低溫機(jī)械密封一般低溫機(jī)械密封是指工作溫度在0~-50℃的密封，API-610的低溫含義指溫度低于-29℃，國內(nèi)通常以密封腔溫度低于-20℃為低溫.實(shí)際上，低溫范圍較寬，可以劃分為:低溫:-20~-50℃中低溫:-50~-100℃極低溫:-100~-196℃**溫:<-196℃泵送低溫介質(zhì)主要指液化氣體和易揮發(fā)的液體，如液態(tài)氮、液態(tài)氧、甲烷、乙烷、乙烯等液化氣。關(guān)于氮、氧、空氣等液化氣體的物理性能如表10-3所示.關(guān)于乙烯、丙烯、甲烷、乙烷、丙烷的物理性能如圖10-18(a)、(b)、(c)、(d)所示·一、低溫機(jī)械密封的要求1.材料要求金屬材料隨著溫度降低。</p><p> 失效后也容易發(fā)現(xiàn)，本文不再贅述。螺紋密封螺紋密封在泵上一般有兩種形式，一種是螺紋聯(lián)接墊片密封，一種是螺紋加填充濟(jì)密封，二者皆用于小直徑螺紋連接的密封場合。螺紋聯(lián)接墊片密封的密封件是墊片，而螺紋只起提供壓緊力的作用。密封的效果除了墊片的本身性能外。密封面的粗糙度以及與螺紋孔的相對幾何位置精度對密封效果影響也很大。于由密封墊片在擰緊螺紋時(shí)不僅承受壓緊力，還承受扭矩，使墊片產(chǎn)生變形甚至損壞，因此，當(dāng)墊片為非金屬時(shí)，一般只適用于壓力不高的場合，如果墊片為金屬則適用壓力可達(dá)30Mpa以上。泵上經(jīng)常使用的絲堵，則是另一種螺紋密封形式。由于考慮到絲堵制造的經(jīng)濟(jì)性，一般單靠螺紋的配合不能起到密封作用，往往用生膠帶，密封膠等填充物填充螺紋的密封間隙。其承壓能力取決于螺紋的制造精度和材質(zhì)，與絲堵和螺紋孔的配合形式?jīng)]有關(guān)系。螺紋孔與絲堵無論采用"錐對錐"還是"柱對錐"，密封效果相同，只是使用地域不同而已。我國目前兩種形式同等采用。影響密封效果的常見原因是在加工螺紋底孔時(shí)尺寸偏大，使螺紋牙形變短，牙頂變寬，造成密封面減小，當(dāng)密封壓力升高后產(chǎn)生泄漏，甚至將絲堵壓出。圖木舒克水泵用機(jī)械密封選型。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太原石油煉化行業(yè)泵用機(jī)械密封,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990676972656/2521191.png"></div><p> 機(jī)械密封是一種旋轉(zhuǎn)機(jī)械的軸封裝置，機(jī)械密封又叫端面密封，在國家有關(guān)標(biāo)準(zhǔn)中是這樣定義的:"由至少一對垂直于旋轉(zhuǎn)軸線的端面在流體壓力和補(bǔ)償機(jī)構(gòu)彈力(或磁力)的作用以及輔助密封的配合下保持貼合并相對滑動(dòng)而構(gòu)成的防止流體泄漏的裝置"。常用機(jī)械密封結(jié)構(gòu)由靜止環(huán)(靜環(huán))、旋轉(zhuǎn)環(huán)(動(dòng)環(huán))、彈性元件彈簧座、緊定螺釘、旋轉(zhuǎn)環(huán)輔助密封圈和靜止環(huán)輔助密封圈等元件組成，防轉(zhuǎn)銷固定在壓蓋上以防止靜止環(huán)轉(zhuǎn)動(dòng)。機(jī)械密封在日常檢修中，常常會(huì)存在以下幾個(gè)誤區(qū)：誤區(qū)一：彈簧壓縮量越大密封效果越好？！其實(shí)不然，彈簧壓縮量過大，可導(dǎo)致摩擦副急劇磨損，瞬間燒損；過度的壓縮使彈簧失去調(diào)節(jié)動(dòng)環(huán)端面的能力，導(dǎo)致密封失效。誤區(qū)二：動(dòng)環(huán)密封圈越緊越好？！其實(shí)動(dòng)環(huán)密封圈過緊有害無益。一是加劇密封圈與軸套間的磨損，泄漏；二是增大了動(dòng)環(huán)軸向調(diào)整、移動(dòng)的阻力，在工況變化頻繁時(shí)無法適時(shí)進(jìn)行調(diào)整；三是彈簧過度疲勞易損壞；四是使動(dòng)環(huán)密封圈變形，影響密封效果。誤區(qū)三：靜環(huán)密封圈越緊越好？！靜環(huán)密封圈基本處于靜止?fàn)顟B(tài)，相對較緊密封效果會(huì)好些，但過緊也是有害的。一是引起靜環(huán)密封因過度變形，影響密封效果；二是靜環(huán)材質(zhì)以石墨居多，一般較脆，過度受力極易引起碎裂。山西飛力泵用機(jī)械密封型號(hào)。太原石油煉化行業(yè)泵用機(jī)械密封</p><p style="text-indent:25px">天津格蘭富泵用機(jī)械密封型號(hào)。太原石油煉化行業(yè)泵用機(jī)械密封</p><p> 尤其是深度尺寸過大時(shí)，使O形圈安裝后壓縮變形量不足而影響密封能力。一般O形圈安裝后壓縮變形量應(yīng)在18%～22%之間，截面尺寸大時(shí)壓縮相對變形量較小，而截面尺寸較小時(shí)壓縮相對變形量則較大。2、O形密封圈的公稱尺寸與實(shí)際安裝尺寸相差太多，形成O形圈在拉伸后截面尺寸縮小的狀況下工作，造成壓縮變形量不足而產(chǎn)生泄漏。3、O形密封圈在安裝時(shí)，由于密封面的進(jìn)口沒有光滑的倒角或倒圓而將O形圈劃傷而產(chǎn)生泄漏。4、O形密封圈的材質(zhì)不適用于密封介質(zhì)而被侵蝕后失效。5、O形密封圈使用時(shí)間太久后老化變質(zhì)，彈性降低后而失效，所以在設(shè)備大修時(shí)一般都將O形圈更換。另外，O形密封圈的硬度，溝槽和密封面的粗糙度也影響O形密封圈的密封效果。填料密封將富有壓縮性和回彈性的填料放入填料函內(nèi)，依靠壓蓋的軸向壓緊力轉(zhuǎn)化為徑向密封力，從而起到密封作用。這種密封方法稱為填料密封，這種填料稱為密封填料。由于填料密封結(jié)構(gòu)形式簡單，更換方便、價(jià)格低廉、適應(yīng)轉(zhuǎn)速、壓力、介質(zhì)寬泛而在泵的設(shè)計(jì)中得到普遍采用。輸送常溫介質(zhì)時(shí)，填料密封一般都設(shè)有填料環(huán)，其或與泵的高壓腔相通，或外接具有一定壓力的液體介質(zhì)，可起到冷卻、潤滑、密封或沖洗作用。由于填料密封是一種接觸密封。太原石油煉化行業(yè)泵用機(jī)械密封</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3083394.html</p></div></div></div></div></div><div id="l3l7qrs" class="page-right twoColRt"><div id="28iekwc" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="es8hd3w" class="recomPic likePro"><a 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