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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>鹽城容積泵密封廠,封</p><p><span>***更新：</span>2020-08-16 09:37:14</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="qpwyqpq" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">漣水創(chuàng)密機械制造有限公司</a></p><p><span>聯(lián)系人：</span>袁經(jīng)理</p><p><span>郵箱: </span>lscmjx@163.com</p><p><span>電話: </span>15250888877</p><p><span>傳真: </span>153_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>153-66621921</p><p><span>地址: </span>高溝鎮(zhèn)高揚民營經(jīng)濟產(chǎn)業(yè)園</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="tnubxuw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="d8h72u8" class="box"><p><p> </p> <p> 一般情況下，介質(zhì)的溫度超過120℃即認(rèn)為是高溫密封。此時機械密封存在的主要問題有：(1)由于摩擦副端面溫度升高，導(dǎo)致密封端面間液膜氣化，鹽城容積泵密封廠，摩擦系數(shù)隨之增大，磨損加劇，鹽城容積泵密封廠，溫升加大，密封環(huán)產(chǎn)生熱變形或熱裂而失效；(2)機械密封中的輔助密封圈材料一般為橡膠或聚四氟乙烯，由于長時間在高溫環(huán)境中，容易老化和分解，鹽城容積泵密封廠，造成密封失效；(3)高溫下機械密封的彈性元件易產(chǎn)生疲勞和蠕變，使密封失效；(4)高溫會加劇金屬材料的腐蝕，縮短機封的使用壽命。如果密封無法直接裝入到預(yù)定的位置，就需要對相關(guān)尺寸進(jìn)行調(diào)整，避免硬裝現(xiàn)象的發(fā)生。鹽城容積泵密封廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城容積泵密封廠,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293921376953/5749071.jpg"></div><p> 液態(tài)烴介質(zhì)是一種低溫液化氣體,具有低沸點、低黏度、高蒸氣壓等特性。在這種工況下使用的機械密封，密封件材料會出現(xiàn)冷脆性，大氣中的水氣會在密封裝置的大氣側(cè)面上凍結(jié)，摩擦副端面液膜容易氣化等。尤其是當(dāng)介質(zhì)稍有泄漏，漏出的液態(tài)烴在大氣側(cè)立即氣化，帶走大量的熱，機械密封環(huán)境溫度急劇下降，一般的密封材料，如橡膠或聚四氟乙烯普遍變脆，導(dǎo)致密封失效，泄漏增大。 </p> <p> <br /> </p> <p> 根據(jù)實際經(jīng)驗,使用金屬波紋管機械密封比較好,主要表現(xiàn)在用金屬波紋管和柔性石墨代替輔助密封圈,解決了密封圈材料發(fā)生冷脆而失彈及緩沖作用的問題,如用DBM型、YH604/606/609型等。在液態(tài)烴泵上使用波紋管機械密封時應(yīng)注意: </p> <p> 金屬波紋管材料選用耐低溫、韌性好的Hastelloy-C(耐熱鎳基金),AM350,Carpenter20 等; </p> <p> 合理的結(jié)構(gòu)設(shè)計能保證機械密封在高速運轉(zhuǎn)的情況下不破壞密封端面和波紋管組件; </p> <p> 合理的端面接觸比壓能保證機械密封的密封性能和避免過早的失效; </p> <p> 合理的摩擦副材料能保證機械密封在低溫條件下正常的摩擦性能和密封性能, 避免因磨損過快而過早的失效; 常州葉輪泵密封批發(fā)價根據(jù)密封腔體壓力，確定密封結(jié)構(gòu)采用平衡型或非平衡型，單端面或雙端面等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城容積泵密封廠,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503162724609/640384.jpg"></div><p> 機械密封的密封環(huán)之間應(yīng)有一層液體薄膜，具有下列三個作用： </p> <p> 支持密封受到的大部分水壓負(fù)荷。 </p> <p> 作為潤滑劑，減少密封環(huán)生成的摩擦熱。 </p> <p> 使粗糙接觸**小化，從而降低磨損率。 </p> <p> 作為傳熱介質(zhì)，轉(zhuǎn)移密封環(huán)直接區(qū)域的熱能。 </p> <p> 首先我們要研究密封失效的原因，根據(jù)我的經(jīng)驗，有如下： </p> <p> 生產(chǎn)上的缺點； </p> <p> 設(shè)計上的缺點； </p> <p> 缺少培訓(xùn)/技術(shù)； </p> <p> 在我們拆卸機械密封的之前，我們先要想好以下幾點： </p> <p> 主要的泄漏在哪里? </p> <p> 在外部件上是否有碎片？ </p> <p> 是否觀察到軸或旋轉(zhuǎn)的密封部件有偏心現(xiàn)象？ </p> <p> 有否與系統(tǒng)相關(guān)的震動/噪音（如氣穴，接合錯位）？ </p> <p> 在“泵”或密封是否存在局部的熱生成？ </p> <p> 在不同的情況下泄漏是否是間歇的，如在不同的溫度下？ </p> <p> 屬何種泄漏，噴射，小滴，水流或流往管道？ </p> <p> 軸承是否有軸向間隙？ </p> <p> 如果是雙端面密封，則檢查隔離液供應(yīng)是否完好。 </p> <p> 密封在軸上的相對位置？ </p> <p> <br /> </p><p> 防止工作介質(zhì)從泵內(nèi)泄漏出來或者防止外界雜質(zhì)或空氣侵入到泵內(nèi)部的裝置或措施稱為密封，被密封的介質(zhì)一般為液體、氣體或粉塵。 </p> <p> 造成泄漏的原因主要有兩個方面：一是密封面上有間隙。二是密封部位兩側(cè)存在壓力差，消除或減小任何一個因素都可以阻止或減小泄漏，達(dá)到密封的目的。泵的設(shè)計壓力和使用壓力是客觀存在不能減小，所以泵的密封該解決的是消除或減小密封面之間的間隙。這種間隙包括密封面之間的間隙和密封裝置本生內(nèi)部的間隙。 </p> <p> <br /> 橡塑密封件的作用使它成為**、化工、石油、煤炭、交通運輸和機械制造等國民經(jīng)濟主要行業(yè)中的基礎(chǔ)部件.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城容積泵密封廠,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247295161962890/6395142.jpg"></div><p> 在分析泵用機械密封泄漏時，不僅要考慮機械密封的內(nèi)因，而且要考慮機械密封的外因。在實際工作中要注意以下幾個問題： </p> <p> 使用正規(guī)廠家生產(chǎn)的泵，因為正規(guī)廠家生產(chǎn)的泵完全按照泵設(shè)計標(biāo)準(zhǔn)來制造的，在使用材料上不會偷工減料，有一定的保質(zhì)期。 </p> <p> 維修工應(yīng)增加對機械密封輔助系統(tǒng)的重要作用和認(rèn)識，盡可能配備完善的機械密封輔助系統(tǒng)，以提高密封效果。 </p> <p> 在分析機械密封泄漏的原因時，要充分考慮到泵的其它零部件對機械密封運行的影響，采取措施不斷提高機械密封的效果。機械密封在流體機械中發(fā)揮著非常重要的作用，可以有效防止機械內(nèi)部的介質(zhì)流出泵外。鹽城容積泵密封廠</p><p style="text-indent:25px">泄漏通道也可同時存在，但一般有主次區(qū)別，只要觀察細(xì)致，熟悉結(jié)構(gòu)，一定能正確判斷。鹽城容積泵密封廠</p><p> 泵用機械密封選型要點 </p> <p> 美國石油協(xié)會API 682(Pumps-Shaft Sealing Systems for Centrifugal and Rotary Pumps)標(biāo)準(zhǔn)中對機械密封的類別(Categories)、類型(Types)、布置方式(Arrangements)、沖洗方案(Flush plans)等進(jìn)行了分類，在工程應(yīng)用中機械密封的選型也應(yīng)注重以上要點進(jìn)行分析。 </p> <p> 另外，機械密封的 pV 值是選擇、使用和設(shè)計機械密封的重要參數(shù)，功耗、磨損與溫升都與該值有關(guān)。pV 值越高，機械密封的技術(shù)水平及難度系數(shù)越高。 </p> <p> 機械密封類別(Categories)的選擇鹽城容積泵密封廠</p><p style="text-indent:25px">漣水創(chuàng)密機械制造有限公司是一家漣水創(chuàng)密機械制造有限公司產(chǎn)品包括:輕型密封、中型密封、重型密封，廣泛應(yīng)用于石油、化工、電力、造紙，食品，機械密封件來料加工（塑料機械密封件除外）、銷售；機械配件、汽車配件銷售；自營和代理各類商品及技術(shù)的進(jìn)出口業(yè)務(wù)，的公司，致力于成為客戶業(yè)務(wù)創(chuàng)新、機械及行業(yè)設(shè)備可信賴的合作伙伴。創(chuàng)密機械制造擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供[ "輕型密封", "中型密封", "重型密封", "小型水泵" ]。依托效率源扎實的技術(shù)積累、完善的產(chǎn)品體系、深厚的行業(yè)基礎(chǔ)，目前擁有員工數(shù)51~100人，年營業(yè)額達(dá)到700-1000萬元。創(chuàng)密機械制造始終關(guān)注機械及行業(yè)設(shè)備行業(yè)。海納百川，有容乃大，國內(nèi)外同行的智慧都是促使我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/929830.html</p></div></div></div></div></div><div id="zvrta7h" class="page-right twoColRt"><div id="srt2tkr" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3sub2h9" 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" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="ham8cev" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" 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