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id="7n9jaxe" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247286448720703/8635806.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zifm83o" 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>南通污水密封供貨商,封</p><p><span>***更新：</span>2021-01-13 06:10:11</p><p><span id="click" >瀏覽次數(shù)：7次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="323nfhj" 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="84mdfh3" class="page-proshow02"><p class="title">詳細說明</p><div id="8pdzwdk" class="box"><p><p> 低溫下的機械密封 </p> <p> 在煉油化工裝置中，低溫輸送的介質(zhì)一般都具有豁度小、潤滑性差、容易氣化的特點，而且介質(zhì)在氣化時大量吸熱，使周圍溫度急劇下降，造成空氣中水氣的凝結，導致端面及其周圍結冰，使端面貼合不嚴引起泄漏。同時，因潤滑性差，端面摩擦產(chǎn)生的熱量較多，若不能及時轉移，必然會加劇端面處的氣化，造成惡性循環(huán)，加速密封面的早期失效，南通污水密封供貨商。另外，低溫密封的輔助密封圈在低溫下發(fā)硬失彈也容易導致泄漏。 </p> <p> <span style="font-size:12px;">對低溫密封，除了選擇合適的輔助密封圈材質(zhì)外，還要注意以下幾點。</span> </p> <p> 改進密封結構及正確選擇摩擦副材料。實踐證明，南通污水密封供貨商，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，導熱性也比較好。 </p> <p> 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，南通污水密封供貨商、結冰，所以在保證密封可靠的前提下，端面比壓可適當減小。一般機械密封比壓值推薦為0.29-0.59MPa，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。 </p> <p> <br /> 根據(jù)安裝密封的有效空間，確定采用多彈簧或單彈簧或波形彈簧，內(nèi)裝式或外裝式。南通污水密封供貨商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通污水密封供貨商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247286448720703/8635806.jpg"></div><p> 隨著時代的高速發(fā)展，對石油資源的需求量不斷增加，石油煉廠的生產(chǎn)任務越來越重。泵用機械在石油煉廠生產(chǎn)過程中發(fā)揮著非常重要的作用，但在其實際運行過程中，其機械密封往往會出現(xiàn)各種問題，不*影響機械的正常使用，還容易導致安全問題的發(fā)生。文章對石油煉廠常用機械密封的設計改進與應用進行分析，希望對中國石油煉化事業(yè)的發(fā)展起到積極的促進作用。 </p> <p> 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。其運行情況，對泵用機械運行的穩(wěn)定性有著非常直接的影響，在石油煉化生產(chǎn)過程中，發(fā)揮著非常重要的作用。各種流體機械在化工生產(chǎn)中，有著非常明顯的應用，隨著石油煉化技術的高速發(fā)展，流體機械的應用參數(shù)水平也在不斷提高，對機械性能要求也在不斷提高，轉軸密封的作用非常突出。我國對機械密封的研究開始較晚，從上個世紀80 年代，機械密封在石油煉化產(chǎn)業(yè)中才開始得到大規(guī)模的應用。南京水泵密封廠動密封類有哪些？答：皮碗、漲圈、螺旋、氣動、水力、離心、填料、迷宮、機械密封等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通污水密封供貨商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293635341797/9903144.jpg"></div><p> 機械密封彈簧壓縮量調(diào)試時有哪些要求？答：機械密封彈簧唄傳動螺釘壓縮一個量，叫彈簧的壓縮量。機械密封全部安裝完畢，相對于彈簧又壓縮一個量，這個量稱機械密封壓縮量。機械密封彈簧總的壓縮量是傳動螺釘壓縮量和彈簧自身彈力之和。在裝配時，機械密封壓縮量越大，彈簧對動環(huán)的作用力越小。因此，機械密封工作原理，彈簧的大小對機械密封的性能和壽命影響很大，所以裝配一定要按技術要求來調(diào)整壓縮量。 </p> <p> <p> 靜環(huán)組件安裝時有哪些注意事項？答：1）將經(jīng)過檢查的靜環(huán)密封圈從靜環(huán)尾部套入，把靜環(huán)組件裝入壓蓋或密封腔。在任何情況下，都不得給機械密封零件或部件施加沖擊力。被壓面應墊上干凈的紙板或布，以免損傷密封端面。2）組裝成旋轉型動環(huán)組件或靜止型的靜環(huán)組件后，用手按動補償環(huán)，檢查是否裝到位，是否靈活；彈性開口是否定位可靠。3）密封端面與軸或軸套中心線的垂直度是否符合要求。4）對靜止型機械密封，靜環(huán)組件的防轉銷引線要準確，推進靜環(huán)組時，組件的銷槽要對準銷子，推進到位后，要測量組件端面至密封腔某端面的距離，判斷是否安裝到位；5）擰螺栓壓緊端蓋時，要用力均勻、對稱，分幾次擰完，不可一次緊定，以免偏斜，甚至壓碎石墨環(huán)。 </p> <p> <br /> </p> </p><p> 機械密封處滲©水的第一種可能性是機封的動、靜環(huán)平面磨損。而造成機封的動、靜環(huán)平面磨損的原因有六個方面： </p> <p> 原因一、安裝過緊。觀察機械密封的動靜環(huán)平面，如有嚴重燒焦現(xiàn)象，平面發(fā)黑和很深的痕跡，密封橡膠變硬，失去彈性，這種現(xiàn)象是由于安裝過緊造成的。 </p> <p> 處理辦法：調(diào)整安裝高度，葉輪發(fā)裝后，用螺絲刀拔動彈簧，彈簧有較強的張力，松開后即復λ，有24MM的移動距離即可。 </p> <p> 原因二、安裝過松。觀察機封動、靜環(huán)平面，其表面有一層很薄的水垢，能夠擦去，表面基本無磨損，這是彈簧失去彈性及裝配不良造成，或電機軸向竄動造成。 </p> <p> 原因三、水質(zhì)差含顆粒。由于水質(zhì)差，含有小顆粒及介質(zhì)中鹽酸鹽含量高，形成磨料磨損機封的平面或拉傷表面產(chǎn)生溝槽、環(huán)溝等現(xiàn)象。 </p> <p> 處理辦法：改進水壓或介質(zhì)，更換機封。 </p> <p> 原因四、缺水運行造成干磨損壞。此現(xiàn)象多見于底閥式安裝形式進口處負壓，進水管有空氣，泵腔內(nèi)有空氣，泵開機后，機封的磨擦高速運轉時產(chǎn)生高溫，無法得到冷卻，檢查機封，彈簧張力正常，摩擦面燒焦發(fā)黑，橡膠變硬開裂。處理辦法：排盡管道及泵腔內(nèi)空氣，更換機械密封。密封常用名稱：密封圈、盤根、機械密封、油封、水封、盤根、密封墊板、密封膠、軟填料、液壓、氣動密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通污水密封供貨商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293837011719/358206.jpg"></div><p> 內(nèi)密封和外密封 </p> <p> **通常的做法是將密封安裝在填料盒的內(nèi)部。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。 </p> <p> <span style="font-size:12px;"> 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：</span> </p> <p> 安裝容易; </p> <p> 費用相對較低; </p> <p> 可以連續(xù)監(jiān)控和清潔; </p> <p> 適于無法在內(nèi)部安裝密封的很小填料盒; </p> <p> 由于其位置接近軸承，對主軸偏差的困難影響較少。 </p> <p> <span style="font-size:12px;"> 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。</span> </p> <p> <span style="font-size:12px;"> 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，采用這種設計，在密封需要更換時，不需要每次都拆卸液泵。這類密封結合探討其他設計標準正在逐步開發(fā)之中。由于這種設計易于更換密封，因此應抵擋**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。</span> </p> <p> <br /> 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。南京水泵密封廠</p><p style="text-indent:25px">機械密封所能承受的壓力是有限度的，由于測算不準，造成密封腔內(nèi)的壓力超過機械密封承受的壓力而產(chǎn)生泄漏。南通污水密封供貨商</p><p> 螺紋密封 </p> <p> 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不*承受壓緊力，還承受扭矩，使墊片產(chǎn)生變形甚至損壞，因此，當墊片為非金屬時，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30Mpa以上。 </p> <p> 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尺寸偏大，使螺紋牙形變短，牙頂變寬，造成密封面減小，當密封壓力升高后產(chǎn)生泄漏，甚至將絲堵壓出。南通污水密封供貨商</p><p> 淮安市漣水創(chuàng)密機械制造有限公司是一家專業(yè)從事機械密封產(chǎn)品的開發(fā)、制造、銷售與一體化的企業(yè)。企業(yè)擁有國內(nèi)前列的工藝、專業(yè)的技術人員，先進的生產(chǎn)設備和檢測手段。堅持以科技為導向，建立了嚴格的產(chǎn)品質(zhì)量和管理保證體系，并按照國家和國際的相關標準以及用戶的特殊需求，生產(chǎn)質(zhì)量的機械密封產(chǎn)品，滿足了廣大用戶的需求。同時，企業(yè)致力于為用戶提供相關的技術咨詢，解決用戶使用中的疑難和關鍵，體現(xiàn)了企業(yè)的價值。 </p> <p> <br /> </p> <p> 企業(yè)生產(chǎn)的機械密封產(chǎn)品包括：輕型密封、中型密封和重型密封。產(chǎn)品品種齊全，被廣泛應用于石油、化工、電力、造紙，食品等行業(yè)。由于產(chǎn)品密封性能好，經(jīng)久耐用，深受廣發(fā)用戶好評。 </p> <p> <span style="font-size:12px;"> 企業(yè)始終以用戶至上、***為起點，緊扣時代脈搏，抓發(fā)展機遇，已被諸多用戶認定為質(zhì)量產(chǎn)品供應商，是值得依賴的合作伙伴。企業(yè)將永遠把質(zhì)量的產(chǎn)品、誠信的服務奉獻給廣大用戶，熱忱歡迎新老客戶惠顧。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2825421.html</p></div></div></div></div></div><div id="oliuwn3" class="page-right twoColRt"><div id="x3ctv3f" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t97ldfm" class="recomPic likePro"><a 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