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class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464454404297/9214202.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="es8meqs" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464454404297/9214202.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qugd8hj" 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>贛州HB50-50-14柳州酸王泵用機械密封,柳州酸王泵用機械密封</p><p><span>***更新：</span>2021-01-14 13:21:39</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="b23bn8m" 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(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="gfczfmo" class="page-proshow02"><p class="title">詳細說明</p><div id="bvnumoq" class="box"><p><p> 化工泵機械密封安裝技術(shù)要求在化工生產(chǎn)中,脫銷**泵的機械密封材質(zhì)十分關(guān)鍵。由于泵的輸送介質(zhì)的差別,以及結(jié)構(gòu)類型的不同而導(dǎo)致機械密封材質(zhì)的選擇要根據(jù)具體情況來決定。脫銷**泵機械密封的材料選用方式通常情況下十分繁雜,根據(jù)介質(zhì)的不同對動靜環(huán)材質(zhì)的選用也各不相同，而機械密封的安裝也有其技術(shù)要求。脫銷**泵機械密封安裝使用的技術(shù)要求1)機械密封部位的軸或軸套的直徑一般為￠10~50mm時的徑向跳動公差為004mm,當(dāng)大于中50~120mm時,徑向公差是006毫米。在滿足技術(shù)標(biāo)準(zhǔn)的前提下,軸或軸套的表面粗糙度的外徑公差是h62)傳動軸的軸向竄動量小雨或者等于02毫米。3)軸、軸套的端面和密封腔體的端面需有倒角的存在。一般情況下,軸徑小于Φ30毫米，贛州HB50-50-14柳州酸王泵用機械密封,則是3×10°;而當(dāng)軸徑大于Φ30mm則是4×10°。4)一旦輸送介質(zhì)由于溫度忽高忽低的問題,或者是夾雜其他雜質(zhì),有毒顆粒，贛州HB50-50-14柳州酸王泵用機械密封,容易發(fā)生自燃和的情況時,就必須緊急采取下列方式來進行解決:過濾、沖洗、冷卻、阻封,等等5)依靠彈簧傳動的機械密封要關(guān)注彈簧的旋向，贛州HB50-50-14柳州酸王泵用機械密封。也就是說,彈簧旋向在密封的條件下應(yīng)該是越來越緊。而彈簧旋向的方式一般是:從靜環(huán)到動環(huán),軸順時針旋轉(zhuǎn)用右旋彈簧,而當(dāng)其逆時針轉(zhuǎn)用的時候,則應(yīng)該用左旋彈簧。泰安柳州酸王泵用機械密封。贛州HB50-50-14柳州酸王泵用機械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="贛州HB50-50-14柳州酸王泵用機械密封,柳州酸王泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464454404297/9214202.png"></div><p> 但這種做法要求在密封維修時將液泵的濕端拆卸下來，其主要好處是密封的環(huán)境衛(wèi)生易于控制。外密封的安裝方式是將靜態(tài)密封面的方向顛倒過來，主軸上的旋轉(zhuǎn)單元位于填料盒壓蓋的外面。外密封主要具有以下五大好處：1.安裝容易;2.費用相對較低;3.可以連續(xù)監(jiān)控和清潔;4.適于無法在內(nèi)部安裝密封的很小填料盒;5.由于其位置接近軸承，對主軸偏差的困難影響較少。其主要缺點是離心力會將固體顆粒從密封的下面甩向密封的接觸面上。因此，這類密封主要適用于清潔且不含有磨料的液體。近年來，分離式密封已成為外密封中的另一重要附加特性。分離式密封是一個成套總成，安裝于填料盒與軸承套之間，采用這種設(shè)計，在密封需要更換時，不需要每次都拆卸液泵。這類密封結(jié)合探討其他設(shè)計標(biāo)準(zhǔn)正在逐步開發(fā)之中。由于這種設(shè)計易于更換密封，因此**只更換密封件的這種誘惑，而對出現(xiàn)故障的根源不做進一步的調(diào)查，這一點非常重要。彈筒式密封圖4自身帶有全部功能的彈筒式密封裝置采用這種密封可簡化安裝程序，同時可保護內(nèi)部各個元件，免受意外損壞。彈筒式密封是一種集全部功能于一身的密封裝置，其內(nèi)部包括所有的密封元件、壓蓋和軸套(見圖4)。由于這類密封不需要任何嚴(yán)格的安裝措施。贛州HB50-50-14柳州酸王泵用機械密封大同柳州酸王泵用機械密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="贛州HB50-50-14柳州酸王泵用機械密封,柳州酸王泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464476259765/4621734.png"></div><p> 機械密封是利用兩個平面互相摩擦運行的原理，達到密封的目的。旋轉(zhuǎn)密封面安裝于液泵的主軸上，而固定密封面安裝于密封壓蓋內(nèi)。由于一個密封面是運動的，而另一個密封面是靜止不動的，因此將這類密封稱之為動態(tài)密封。圖1旋轉(zhuǎn)面與靜止面之間的密封是決定密封性能關(guān)鍵的因素?；A(chǔ)的機械密封如圖1所示，其中有4個泄漏通路需要密封：1.密封面之間的通路;2.旋轉(zhuǎn)面與主軸之間的通路;3.固定面與壓蓋之間的通路;4.壓蓋與填料盒之間的通路。后兩種泄漏通路一般采用靜態(tài)密封，因為兩部分之間不存在相對運動。這部分的密封通常都稱之為三次密封，其密封材料為墊片或與工藝流程液體相適應(yīng)的O型密封圈。在較老的密封設(shè)計中，位于旋轉(zhuǎn)面下的二次密封留有一定的間隙，可在主軸上前后運動，因此易于引起磨損和過早失效。然而在較新的密封設(shè)計中，二次密封處于靜止?fàn)顟B(tài)，因此可避免在主軸上出現(xiàn)磨損腐蝕問題。在液泵的正常操作中，旋轉(zhuǎn)面和靜止面之間因填料盒中的液體所產(chǎn)生的壓力而使其保持在密封狀態(tài)，在起動和停機時，填料盒的壓力由彈簧產(chǎn)生的壓力維持(甚至可以由彈簧的壓力來代替)。大部分機械密封的設(shè)計采用較軟的材料來制作旋轉(zhuǎn)面，使其在較硬的靜止面上旋轉(zhuǎn)摩擦。多年來。</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，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，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。沈陽柳州酸王泵用機械密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="贛州HB50-50-14柳州酸王泵用機械密封,柳州酸王泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464496357422/582157.png"></div><p> 或內(nèi)徑D1)的極限偏差按表9-5的規(guī)定。彈簧自由高度Ho的極限偏差按表9-6的規(guī)定。彈簧在壓縮到全變形量的10%時，其正常節(jié)距圈不應(yīng)接觸。兩端面經(jīng)過磨削的彈簧，在自由狀態(tài)下，彈簧軸心線對兩端面的垂直度偏差<。兩端面并緊并磨平的彈簧，支承圈磨平部分大于或等于3/4圈。其表面粗糙度Ra為，端頭厚度不小于d/8。彈簧表面應(yīng)光滑，不得有裂紋、起刺等肉眼可見的有害缺陷.近幾年很多引進機械密封使用了波形彈簧，其中纏繞式波型彈簧用量較多。纏繞式波形彈簧結(jié)構(gòu)見圖9-3，其具有強度高、柔性好、結(jié)構(gòu)形式緊湊、安裝空間小等優(yōu)點。它是用**纏繞彈簧設(shè)備加工的，纏繞式波型彈簧技術(shù)要求如下:纏繞式波型彈簧的波峰應(yīng)呈圓弧形，不允許出現(xiàn)平頂或尖頂。多層纏繞式波型彈簧相鄰上下層的波峰及波谷要對齊.圓周方向角度錯位不大于5°。多層纏繞式波型彈簧相鄰上下層的徑向錯邊不大于。纏繞式波型彈簧內(nèi)外徑尺寸偏差應(yīng)符合表9-7的規(guī)定。纏繞式波形彈簧自由高度尺寸偏差應(yīng)符合表9-8、表9-9的規(guī)定。纏繞式波形彈簧必須經(jīng)過消除應(yīng)力處理。殘余變形不應(yīng)超時(單片波型彈簧小于)。同一個纏繞式波形彈簧各波高度差應(yīng)不超過表9-10及表9-11的規(guī)定(多層纏繞式波型彈簧*指中間層的各波高度)。包頭柳州酸王泵用機械密封。贛州HB50-50-14柳州酸王泵用機械密封</p><p style="text-indent:25px">通化柳州酸王泵用機械密封。贛州HB50-50-14柳州酸王泵用機械密封</p><p> 在靜環(huán)表面開圓弧形凹槽可形成流體動力密封，增加流體膜承載能力，改善端面潤滑條件，有效延長機封工作壽命。在端面配對方面，碳化鎢一M106K石墨組對（即動、靜環(huán)材料）一般要優(yōu)于其他材料，因為其潤滑性好，摩擦系數(shù)低，導(dǎo)熱性也比較好。2、選擇合適的端面比壓。低溫密封由于端面潤滑性差，容易發(fā)生氣化、結(jié)冰，所以在保證密封可靠的前提下，端面比壓可適當(dāng)減小。一般機械密封比壓值推薦為，對低溫密封可取其下限。對金屬波紋管機械密封，由于動環(huán)沒有軸向摩擦，端面比壓甚至可以低于下限。3、工藝上采取相應(yīng)措施。如盡量減少介質(zhì)的含水量；保持密封腔壓力的相對穩(wěn)定；盡可能配備沖洗冷卻裝置；在設(shè)備啟動前，對機封部位進行適當(dāng)預(yù)熱等。三、高速下的機械密封當(dāng)轉(zhuǎn)速超過3000r/min或者摩擦副的線速度超過25m/s時，一般可視為高速密封。在高速條件下，摩擦端面由于線速度很大，摩擦產(chǎn)生的熱量也多，此時端面液膜不容易形成，磨損加劇。高速還容易引起旋轉(zhuǎn)環(huán)的振動，并受到較大的離心力作用，不利于端面間液膜的形成和維持。所以在高速情況下，為了減小離心力和振動的影響，應(yīng)盡量減少轉(zhuǎn)動部件，采用彈簧靜止式結(jié)構(gòu)。也可以加強對摩擦副端面的冷卻和潤滑。贛州HB50-50-14柳州酸王泵用機械密封</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2845321.html</p></div></div></div></div></div><div id="onuhofc" class="page-right twoColRt"><div id="bgikmta" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ixu3zbi" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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