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id="77cn3cd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637351523783457031/8685406.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3s3ri8s" 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)品關鍵詞：</span>赤峰襄樊五二五機械密封LC550/700,襄樊五二五機械密封</p><p><span>***更新：</span>2020-12-13 05:16:50</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="3y4bsjk" 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="fntugxt" class="page-proshow02"><p class="title">詳細說明</p><div id="2723b3z" class="box"><p><p> 熟悉結構,就一定能正確判斷。⑥運轉過程中泄漏不銹鋼耐腐蝕泵泵用機械密封經(jīng)過靜試后,運轉時髙速旋轉產(chǎn)生的離心力,會壓制介質(zhì)的泄漏。排除靜密封點泄漏外,運轉過程中泄漏主要是由于動環(huán)、靜環(huán)液膜受破壞所致。引起密封失效的原因主要有:泵體內(nèi)抽空造成,泵體內(nèi)無液體,使動、靜環(huán)面無法形成完整的液膜;安裝過程中動環(huán)面壓縮量過大,導致運轉過程中,短時間內(nèi)動環(huán)、靜環(huán)兩端面嚴重磨損、擦傷,無法形成密封液膜;動環(huán)密封圈制造安裝過緊,軸向力無法調(diào)整動環(huán)的軸向浮動量,動、靜環(huán)之間液膜厚度不隨泵的工況發(fā)生變化，赤峰襄樊五二五機械密封LC550/700,造成液膜不穩(wěn)定工作介質(zhì)中有顆粒狀物質(zhì),-運轉中進入動環(huán)、靜環(huán)端面,損傷動、靜環(huán)密封端面,無法形成穩(wěn)定液膜;顆粒狀物質(zhì)中進入動環(huán)彈簧元件(或波紋管)時,造成動環(huán)無法調(diào)整軸向浮動量,造成動、靜環(huán)端面間隙過大,無法形成穩(wěn)定液膜:設計選型有誤，赤峰襄樊五二五機械密封LC550/700,密封端面比壓偏低或密封材質(zhì)冷縮性較大等;泵葉輪軸向竄動量超過標準、轉軸發(fā)生周期性振動及工藝操作不穩(wěn)定，赤峰襄樊五二五機械密封LC550/700、密封腔內(nèi)壓力經(jīng)常變化均會導致密封周期性泄漏;摩擦副損傷或變形而不能跑合引起泄漏:密封圈材料選擇不當,溶脹失彈;設備運轉時振動太大;動、靜環(huán)與軸套問形成水垢,使彈簧失彈而不能補償密封面的磨損等。LCP7S6-S/SV3-11/61襄樊五二五機械密封。赤峰襄樊五二五機械密封LC550/700</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="赤峰襄樊五二五機械密封LC550/700,襄樊五二五機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637351523783457031/8685406.png"></div><p> 彈簧裝上后在彈簧座內(nèi)要移動靈活。用單彈簧時要注意彈簧的旋向，彈簧的旋向應與軸的轉動方向相反。動環(huán)安裝后須保持靈活移動，將動環(huán)壓向彈簧后應能自動彈回來。先將靜環(huán)密封圈套在靜環(huán)背部后，再裝入密封端蓋內(nèi)。注意保護靜環(huán)斷面，保證靜環(huán)斷面與端蓋中心線的垂直度，且將靜環(huán)背部的防轉槽對準防轉銷，但勿使其中互相接觸。安裝過程中決不允許用工具直接敲打密封元件，需要敲打時，必須使用**工具進行敲打，以防密封元件的損壞組裝時所有密封圈應該涂以肥皂水等潤滑劑，這樣可以避免組裝過程中損壞膠圈。動靜環(huán)的密封面之間涂以潤滑脂，防止動靜環(huán)密封面在水泵開車前磨損。浮動環(huán)組裝時，一定要小心不要碰倒浮動環(huán)彈簧，以免彈簧碰倒后影響浮動環(huán)的浮動性能。浮動環(huán)組裝后，可以輕輕按浮動環(huán)，以確定是否就有良好的浮動性能。安裝密封時應輕拿輕放，防止損壞密封件，安裝時應將密封及腔體擦洗干凈。緊固機械密封壓蓋時緊固螺栓應均勻受力，防止受力不均損壞機械密封。對于快裝式機械密封在整體組裝完畢后一定不要忘記將定位片徑向移動道遠離軸的位置固定。因為機械密封所密封的介質(zhì)是不同的，涼水和熱水的溫度不同，密封的介質(zhì)是否具有腐蝕性，腔室內(nèi)壓力的不同。滄州MECP-142D110QQ襄樊五二五機械密封襄樊五二五機械密封LC550/700。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="赤峰襄樊五二五機械密封LC550/700,襄樊五二五機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637351523716689453/5354287.png"></div><p> 8、串聯(lián)式機械密封特點它是將兩套機械密封沿同一方向安裝,外層密封為安全密封,保證危險介質(zhì)不會泄漏到大氣中。個別時候也用于高壓場合,其密封腔的壓力是逐級降低的。9、波紋管機械密封的特點波紋管機械密封將補償環(huán)密封圈和摩擦阻力起消除了,補償?shù)沫h(huán)密封圈改到彈簧座的部位,補償環(huán)隨動性得到提高,同時避免了補償環(huán)密封圈在串軸和振動時容易產(chǎn)生磨損的情況。一般來說金屬材質(zhì)的波紋管大都用在高溫場合,聚四氟乙烯材質(zhì)的波紋管則主要用在腐蝕性介質(zhì)的場合。10、MDEA胺液循環(huán)泵集裝式機械密封的特點集裝式機械密封是將動靜環(huán)、壓蓋、軸套等組合成一個整體。在安裝時只需要固定住壓蓋和軸套,再取出定位的擋塊就可以了。其安裝比較方便,消除了以往其他形式安裝不好的影響。一般情況,定位擋塊的厚度對應于彈簧的壓縮量,從外部容易觀測,便于調(diào)整。</p><p> 2）機械密封處的泵軸撓度要小，只有滿足類似這樣的外因，再加上良好的機械密封自身性能，才能達到理想的密封效果。二、影響泵用機械密封的外部原因（一）泵軸的軸向竄量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)。為了保證這個比壓，要求泵軸不能有太大的竄量（≤），但在實際生產(chǎn)中，往往泵軸產(chǎn)生很大的竄量。對機械密封的使用非常不利的，這種情況在我分廠表現(xiàn)在泵啟動過程中，由于不平衡軸向力的存在，使整個軸發(fā)生向吸入口的竄動，造成機械密封失去密封作用，常用的措施有：葉輪上開平衡孔，泵體上裝平衡管等。（二）泵軸的撓度偏大軸彎曲變形時橫截面形心沿與軸線垂直方向的線位移稱為撓度，機械密封要求兩個密封端面之間受力均勻。但由于泵產(chǎn)品設計的不合理，在機械密封安裝處產(chǎn)生的撓度偏大，使密封處受力不均勻，從而失去密封效果。這種現(xiàn)象大多存在臥式多級離心泵中。（三）沒有輔助沖洗系統(tǒng)或輔助沖洗系統(tǒng)設計不合理機械密封的輔助沖洗系統(tǒng)是非常重要的，它可以有效的保護密封面，起到冷卻、潤滑、沖走雜物等作用。有時設計人員設計不合理，達不到密封效果；有的設計了輔助系統(tǒng)，但由于沖洗液中有雜質(zhì)。HTM-40S251襄樊五二五機械密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="赤峰襄樊五二五機械密封LC550/700,襄樊五二五機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637351523736943359/3044076.png"></div><p> 另外還可選用[PV]值高的摩擦副材料，減小端面的接觸寬度，或者采用受控膜機械密封。近年來，一種名為差動環(huán)式的機械密封也在高速設備中得到應用。由于在原先的動靜環(huán)中間加入了一個差動環(huán)，可以將摩擦副線速度降低一半，取得了不錯的效果。四、高壓下的機械密封機械密封工作壓力超過4-5MPa即屬于高壓密封范圍。在高壓條件下，由于密封端面比壓值過大，引起端面發(fā)熱，從而破壞液膜的形成，造成異常磨損。高壓還可能使摩擦副產(chǎn)生變形和破裂。高壓密封一般均采用平衡型結構，以使端面比壓處于一個合適的范圍。但考慮到密封的可靠性，平衡系數(shù)不可能無限制增大，因而有些情況盡管已經(jīng)采用了平衡型結構，但端面比壓仍可能較大。單靠平衡型結構很難滿足使用要求，這種情況可采用多端面機封或者受控膜機械密封。五、腐蝕環(huán)境下的機械密封有些機械密封處于腐蝕環(huán)境中，這時不僅要注意機封中每個零件本身的耐腐蝕性，還要防止它們組合在一起時可能產(chǎn)生的電耦現(xiàn)象。腐蝕環(huán)境中的機械密封，在選用時要注意采用耐腐蝕的材料。此外，可以采用外裝式機械密封。對腐蝕性特強容易引起安全事故的，可以采用雙端面密封，引入隔離液加以保護。襄樊五二五機械密封HTM-80S310。滄州MECP-142D110QQ襄樊五二五機械密封</p><p style="text-indent:25px">襄樊五二五機械密封LC900/1150BII。赤峰襄樊五二五機械密封LC550/700</p><p> 其余安裝及外型尺寸不受影響。副葉片和固定導葉加工難度較大，一般離心泵上沒有，在改造時可根據(jù)情況決定是否采用。在低于50m揚程的泵也可不采用副葉片和固定導葉，只采用副葉輪。3、動力密封裝置整體工作原理在運轉時，離心泵工作葉輪與起密封作用的副葉輪同軸旋轉，工作葉輪泄漏出來的液體流到副葉輪后，通過副葉輪作用產(chǎn)生的壓力，與泄漏液體的壓力在副葉輪頂端與密封總成內(nèi)端面處達到平衡，從而使泄漏液體起到密封作用。在停車時，副葉輪動力密封不起作用，泵內(nèi)液體壓力較小，泄漏到副葉輪的液體通過油封進行密封。4、副葉輪動力密封設計應注意的問題（1）離心泵采用副葉輪密封無需考慮冷卻措施，若用于氣體密封，則需設置旁通回路從外部引入封液進行冷卻。（2）副葉輪密封消耗的附加功率與其外徑的五次方成正比，因此一般不采用外徑過大的方案，而應該同時設副葉片和副葉輪，以便減小外徑，減少功耗。（3）副葉輪動力密封及停車密封裝置材料的選擇要根據(jù)使用介質(zhì)的要求來決定，否則要影響使用壽命，特別是停車密封還要考慮冷卻和潤滑等。（4）因為副葉輪葉片的進口角同副葉輪的密封能力無關，所以葉片形狀可以用徑向直葉片以便加工制造。赤峰襄樊五二五機械密封LC550/700</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2383430.html</p></div></div></div></div></div><div id="trsevr8" class="page-right twoColRt"><div id="38jpvbh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wpl33cy" 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" 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