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12:19:11</p><p><span id="click" >瀏覽次數(shù)：13次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gq83lhy" 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="vi382b7" class="page-proshow02"><p class="title">詳細說明</p><div id="olx8v3s" class="box"><p><p> 10干氣密封干氣密封即“干運轉(zhuǎn)氣體密封”是將開槽密封技術(shù)用于氣體密封的一種新型軸端密封，屬于非接觸密封。干氣密封原理：當端面外側(cè)開設(shè)有流體動壓槽（～10μm）的動環(huán)旋轉(zhuǎn)時，流體動壓槽把外徑側(cè)（稱之為上游側(cè)）的高壓隔離氣體泵入密封端面之間，由外徑至槽徑處氣膜壓力逐漸增加，南昌飛力水泵機械密封FS-E-L22，而自槽徑至內(nèi)徑處氣膜壓力逐漸下降。因端面膜壓增加使所形成的開啟力大于作用在密封環(huán)上的閉合力，在摩擦副之間形成很薄的一層氣膜（1～3μm）從而使密封工作在非接觸狀態(tài)下。所形成的氣膜完全阻塞了相對低壓的密封介質(zhì)泄漏通道，實現(xiàn)了密封介質(zhì)的零泄漏或零逸出?；け妹芊獾倪x擇化工泵經(jīng)常輸送的是具有腐蝕性，或是有毒揮發(fā)的介質(zhì)，因此其密封性能是衡量化工泵好與壞的標準之一。在選擇化工泵時，應(yīng)參考如下標準。（1）密封形式有靜密封與動密封之分對于靜密封，通常只采用密封圈和密封墊兩種密封形式，而在密封圈中又以O(shè)型圈的應(yīng)用性*****；對于動密封，很少采用填料密封，其主要是以機械密封為主，而機械密封之中又分單端面和雙端面、平衡型和非平衡型，南昌飛力水泵機械密封FS-E-L22。其中平衡型較適應(yīng)于高壓介質(zhì)的密封，南昌飛力水泵機械密封FS-E-L22，其通常指壓力大于。7115飛力水泵機械密封。南昌飛力水泵機械密封FS-E-L22</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南昌飛力水泵機械密封FS-E-L22,飛力水泵機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637360176293046875/4706046.png"></div><p> 沖洗液的流量、壓力不夠，沖洗口位置設(shè)計不合理等原因，也同樣達不到效果。常用的措施有：1.在條件允許的情況下，盡量設(shè)計輔助沖洗系統(tǒng)。沖洗壓力一般要求高于密封腔壓力，密封腔壓力要根據(jù)每種泵的結(jié)構(gòu)形式、系統(tǒng)壓力等因素來計算。軸封腔壓力很高或者壓力幾乎接近該密封使用極限時，也可由密封腔引液體至低壓區(qū)，使軸封液體流動以帶走摩擦熱。2.根據(jù)每種泵的操作條件，合理地配置管路和附件。如冷卻器、孔板、過濾器、閥門、流量指示器、壓力表、溫度等。實際上密封的可靠性和壽命，在很大程度上取決于密封輔助系統(tǒng)的配置，另外泵軸、軸套、泵體、密封腔體的加工精度不夠等原因的存在對機械密封的密封效果也是很不利的，在這些方面應(yīng)該做到嚴格把關(guān)。（四）振動偏大及消除措施機械密封振動偏大往往不是機械密封自身的原因，而是泵軸設(shè)計不合理、加工精度不夠、靠背輪的平行度偏大、徑向力大等原因，消除泵振動措施有：泵、電機、底座、現(xiàn)場管路等輔助設(shè)備在現(xiàn)場安裝時，要嚴格把關(guān)，消除振動源。（五）泵氣蝕的原因及改進措施離心泵葉輪入口處是泵內(nèi)壓力小的地方，當此處的壓力等于或低于工作溫度下被輸送液體的飽和蒸汽壓1pt時，液體就會沸騰汽化，產(chǎn)生大量氣泡。南昌飛力水泵機械密封FS-E-L223300飛力水泵機械密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南昌飛力水泵機械密封FS-E-L22,飛力水泵機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637360176488027344/2562730.png"></div><p> 試運轉(zhuǎn)時機械密封泄漏在排除軸間及端蓋密封失效后，基本上都是由于動、靜環(huán)摩擦副受破壞所致。引起摩擦副密封失效的因素主要有：（1）操作中，因抽空、氣蝕、憋壓等異?，F(xiàn)象，引起較大的軸向力，使動、靜環(huán)接觸面分離；（2）對安裝機械密封時壓縮量過大，導(dǎo)致摩擦副端面嚴重磨損、擦傷；（3）動環(huán)密封圈過緊，彈簧無法調(diào)整動環(huán)的軸向浮動量；（4）靜環(huán)密封圈過松，當動環(huán)軸向浮動時，靜環(huán)脫離靜環(huán)座；（5）工作介質(zhì)中有顆粒狀物質(zhì)，運轉(zhuǎn)中進人摩擦副，損傷動、靜環(huán)密封端面；（6）設(shè)計選型有誤，密封端面比壓偏低或密封材質(zhì)冷縮性較大等。上述現(xiàn)象在試運轉(zhuǎn)中經(jīng)常出現(xiàn)，有時可以通過適當調(diào)整靜環(huán)座等予以消除，但多數(shù)需要重新拆裝，更換密封。、正常運轉(zhuǎn)中突然泄漏離心泵在運轉(zhuǎn)中突然泄漏少數(shù)是因正常磨損或已達到使用壽命，而大多數(shù)是由于工況變化較大或操作、維護不當引起的。（1）、抽空、氣蝕或較長時間憋壓，導(dǎo)致密封破壞；（2）、對泵實際輸出量偏小，大量介質(zhì)泵內(nèi)循環(huán)，熱量積聚，引起介質(zhì)氣化，導(dǎo)致密封失效；（3）、回流量偏大，導(dǎo)致吸人管側(cè)容器底部沉渣泛起，損壞密封；（4）、對較長時間停運，重新起動時沒有手動盤車，摩擦副因粘連而扯壞密封面；。</p><p> 當墊片為非金屬時，一般只適用于壓力不高的化工泵，如果墊片為金屬則適用壓力可達30Mpa以上。化工泵上經(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。5迷宮密封在設(shè)計合理，加工精良，裝配完好、轉(zhuǎn)速較高時，迷宮密封效果很好。但在實際應(yīng)用中，因此而產(chǎn)生的化工泵泄漏卻很多，所以在化工泵密封中不常用。在設(shè)計合理，加工精良，裝配完好、轉(zhuǎn)速較高時，迷宮密封效果很好。但在實際應(yīng)用中，因此而產(chǎn)生的化工泵泄漏卻很多，所以在化工泵密封中不常用，分析其原因主要有：密封副(如軸和軸承壓蓋)配合間隙太大，而此間隙與密封效果成反比。配合面粗糙，明顯的螺旋狀車刀痕在有些情況下也加大了化工泵泄漏趨勢。化工泵軸承室內(nèi)潤滑油注入量太多，其溢出壓力超過了密封阻力。油窗或油位計安裝位置有誤，誤導(dǎo)了人們對油室內(nèi)潤滑油量的正確判斷.運轉(zhuǎn)中油溫的升高使其粘度降低。飛力水泵機械密封NTT150-400/02。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南昌飛力水泵機械密封FS-E-L22,飛力水泵機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637360176441191407/2398150.png"></div><p> 軸與軸套配合處有較大的形位誤差，接觸面破壞，軸上各部件間有間隙，軸頭螺紋過長等都會導(dǎo)致軸間泄漏。鎖母鎖緊過度只會導(dǎo)致軸間墊過早失效，相反適度鎖緊鎖母，使軸間墊始終保持一定的壓縮彈性，在運轉(zhuǎn)中鎖母會自動適時鎖緊，使軸間始終處于良好的密封狀態(tài)。、新的比舊的好相對而言，使用新機械密封的效果好于舊的，但新機械密封的質(zhì)量或材質(zhì)選擇不當時，配合尺寸誤差較大會影響密封效果；在聚合性和滲透性介質(zhì)中，靜環(huán)如無過度磨損，還是不更換為好。因為靜環(huán)在靜環(huán)座中長時間處于靜止狀態(tài)，使聚合物和雜質(zhì)沉積為一體，起到了較好的密封作用。、拆修總比不拆好一旦出現(xiàn)機械密封泄漏便急于拆修，其實，有時密封并沒有損壞，只需調(diào)整工況或適當調(diào)整密封就可消除泄漏。這樣既避免浪費又可以驗證自己的故障判斷能力，積累維修經(jīng)驗提高檢修質(zhì)量。5、結(jié)束語以上總結(jié)了機械密封比較常見的滲漏原因和維護時的幾個常見的誤區(qū)。只有充分了解機械密封的結(jié)構(gòu)和常見的一些泄漏現(xiàn)象，正確的分析導(dǎo)致各種泄漏的原因，才能對癥下藥進行治理，才能保證安全生產(chǎn)。飛力水泵機械密封FLYGT 4640。南昌飛力水泵機械密封FS-E-L22</p><p style="text-indent:25px">flyght2151飛力水泵機械密封。南昌飛力水泵機械密封FS-E-L22</p><p> 運轉(zhuǎn)開始時允許有微量泄漏，隨著時間的增加，泄漏量會逐漸減少。9碳－石墨材料具有良好的導(dǎo)熱、導(dǎo)電性、化學穩(wěn)定性、抗熱震性、自潤滑性和可加工性。在泵業(yè)方面，用于離心泵、屏蔽泵、柴油分配泵、潛水泵、清水泵、高溫熱油泵、核二級泵、鍋爐給水泵、氣泵等端面密封、漲圈密封、機械密封環(huán)、軸向密封、旋片等場合。10橡膠天然橡膠：具有優(yōu)異的耐屈撓性，良好的耐磨性、耐寒性和絕緣性，撕裂強度高。耐老化、耐候性差、耐油、耐溶劑性也較差。采用天然橡膠膠料制造的膠泵，適宜工作溫度在78℃以下。適用于輸送多種磨蝕性渣漿和弱酸、弱堿溶液，但不適用于輸送強酸、油、脂肪族和芳香族溶液。丁腈橡膠：是當前應(yīng)用***的耐油橡膠品種，具有一系列優(yōu)越性能，耐磨性比天然橡膠高30～45％，耐高溫性較天然橡膠、丁苯橡膠都好。但丁腈橡膠的耐天候老化性差。采用丁腈橡膠膠料制造的膠泵，使用溫度為95℃。該膠種的膠泵耐各種動、植物油、礦物油以及甘醇。丁基橡膠：采用丁基橡膠膠料制造的襯膠泵件，適于酸性泥漿工作。使用溫度為100℃，可耐強酸強堿（如鹽酸、氫氧化鈉），但高濃度的氧化性強酸（如濃硫酸、濃硝酸）會使丁基橡膠降解。南昌飛力水泵機械密封FS-E-L22</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/3176575.html</p></div></div></div></div></div><div id="82cpb37" class="page-right twoColRt"><div id="etv3uok" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pe7bcja" class="recomPic likePro"><a href="http://m.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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