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id="gvu8dfh" class="proBig"><div id="qahwyfh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298675996094/8215396.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="r7smhuc" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298675996094/8215396.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="p3pfcjq" 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>鹽城水泵密封經(jīng)銷廠家,封</p><p><span>***更新：</span>2020-10-21 14:23:48</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="bvspmyv" 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="87qla2b" class="page-proshow02"><p class="title">詳細說明</p><div id="qax3if7" class="box"><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，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，鹽城水泵密封經(jīng)銷廠家，使螺紋牙形變短，牙頂變寬，造成密封面減小，鹽城水泵密封經(jīng)銷廠家，當密封壓力升高后產(chǎn)生泄漏，甚至將絲堵壓出。機械密封安裝調試好后，鹽城水泵密封經(jīng)銷廠家，一般要進行靜試，觀察泄漏量。如泄漏量較小，多為動環(huán)或靜環(huán)密封圈存在問題。鹽城水泵密封經(jīng)銷廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城水泵密封經(jīng)銷廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298675996094/8215396.jpg"></div><p> <br /> </p> <p> 化工泵油封是一種自緊式唇狀密封，其結構簡單，尺寸小，成本低廉，維護方便，阻轉矩較小，既能防止介質泄漏，也能防止外部塵土和其它有害物質侵入，而且對磨損有一定的補償能力，但不耐高壓，所以一般用在低壓場合的化工泵上。 </p> <p> 化工泵依靠離心原理來抽取液體物料，特殊材料制成的化工泵適用于瓶、桶、缸、池或其他容器中抽取腐蝕性液體。由于化工泵所抽取的介質有腐蝕、揮發(fā)、等危險性的存在，對泵體的密封性能要求，要比其他種類的泵高很多。 </p> <p> 化工泵油封應安裝在制造精度為h8～h9，表面粗糙度為1.6～0.8μm且經(jīng)過表面硬化處理的軸上。密封介質不應含有固體微粒和雜質，否則會造成油封和軸的迅速磨損而使密封失效。 </p> <p> 在選擇此種密封方法是，要充分考慮化工泵所輸送到物料的性能和要求，以避免不必要的泄漏，防止意外的發(fā)生。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 鹽城水泵密封經(jīng)銷廠家機械密封的正常運行必須具備以下條件：泵軸的竄量不能太大。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城水泵密封經(jīng)銷廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247286448720703/8635806.jpg"></div><p> 離心泵口環(huán)一般指葉輪口環(huán)，是安裝在水泵葉輪和泵體之間的一個環(huán)狀金屬圈， </p> <p> <span style="font-size:12px;"> 口環(huán)，也叫耐磨環(huán)。其主要作用是防止出口端介質倒流回進口端介質也就是密封作用（因此有“密封環(huán)”這一名稱）；同時也起耐磨作用，避免葉輪和泵殼直接接觸損壞，有保護葉輪的作用（因此有“耐磨環(huán)”這一名稱）。</span> </p> <p> <span style="font-size:12px;">離心泵口環(huán)，一般水泵的級數(shù)與口環(huán)的數(shù)量是一樣的，也就是說一個5級的水泵，那么口環(huán)也就有5個，一個首口環(huán)，4個口環(huán)。</span> </p> <p> <span style="font-size:12px;">多級離心泵口環(huán)的作用是在葉輪與泵殼間形成狹窄、曲折的通道，來增加介質的流動阻力，達到減少介質泄漏的目的。離心泵口環(huán)的設置還起到保護泵上主要零件不受磨損的作用(公眾號:泵管家)，在口環(huán)磨損后，可以修復或更換新環(huán)、恢復正常裝配間隙，這樣既經(jīng)濟又便于檢修。</span> </p> <p> <span style="font-size:12px;">口環(huán)間隙大會將低泵的使用效率，經(jīng)過泵加壓的流體會過多的從泵出口區(qū)域沿葉輪與口環(huán)的間隙返回到進口，從而降低了泵的使用效率，同時由于流量的加大，會使口環(huán)過早的被磨損。口環(huán)間隙過大，會導致泵的流量降低，嚴重時不上量。 </span> </p> <p> <span style="font-size:12px;">離心泵口環(huán)的完好性及它與葉輪問徑向間隙含，在拆卸泵時應首先檢查。如離心泵口環(huán)已有溝槽等缺損或已破裂或間隙艿超過表5中所規(guī)定的數(shù)值時，應更換新口環(huán)或將原口環(huán)補焊修復。</span> </p> <p> <br /> </p> <p> <br /> </p><p> 離心泵的機械密封使用與潤滑保養(yǎng) </p> <p> <p> 在液體介質中工作的機械密封，一般均依靠液體介質在動、靜環(huán)摩擦面間所形成的液膜進行潤滑。因此，維持摩擦面間的液膜是機械密封穩(wěn)定運轉、延長使用壽命所必不可少的。 </p> <p> 強化潤滑的結構 </p> <p> 靜壓潤滑： </p> <p> 所謂靜壓潤滑是將有壓力的潤滑液體直接引入摩擦面以起到潤滑的作用。用此有壓力的潤滑液與機械內的流體壓力相對抗，此種形式通常也稱為流體靜壓力密封。引入的潤滑液體由單獨的液源供給，如液壓泵等。只要條件允許，應盡可能把氣體介質條件轉換為液體介質條件，這樣既便于潤滑又便于密封。氣體介質的機械密封應采取措施建立氣膜潤滑，如采用氣體靜壓受控膜機械密封或固體潤滑，即選用自潤滑材料作動環(huán)或靜環(huán)。 </p> <p> 端面偏心： </p> <p> 一般機械密封，動環(huán)的中心、靜環(huán)的中心和軸的中心線都在一條直線上，偏心尺寸不能過大，特別是對于高壓，偏心會使端面所受的壓力不均勻，而造成磨損不均勻。對于高轉速密封，不宜用動環(huán)作為偏心環(huán)，否則由于離心力的平衡會使機器發(fā)生振動。如果將動環(huán)或靜環(huán)中的某一個環(huán)的端面中心做成與軸的中心線偏移部分距離，便能使環(huán)在旋轉時不斷帶入潤滑液至滑動面間起潤滑作用。 </p> <p> <br /> </p> 與密封件相對滑動零件的幾何位置精度(同心度)高材質好(如鍍硬鉻)和表面粗糙度較細可延長使用壽命。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城水泵密封經(jīng)銷廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247295241855469/6155112.jpg"></div><p> 泵用機械密封的安裝和使用機械密封大多用于各種類型的泵。機械密封是一種精度較高的密封裝置，對安裝和使用條件均有一定的要求。機械密封安裝使用的一般原則弄清設備的情況，要了解設備轉軸的轉速、軸徑；設備制造精度及密封腔尺寸，設備本身的使用壽命以及設備在生產(chǎn)工藝中的地位等要做均衡的考慮。估算介質壓力。泵的密封腔壓力一般不是泵的出口壓力，而是低于泵的出口壓力。弄清密封介質情況。要知道密封介質的狀態(tài)，是氣態(tài)還是液態(tài)，介質是否含顆粒及顆粒狀況；了解介質的性質、溫度，以便合理選型及采取必要的冷卻、沖洗、潤滑措施。機械密封安裝使用的技術要求安裝機械密封部位的軸或軸套的徑向跳動公差：Ф10~50mmФ50~120mm,。軸或軸套的表面粗糙度應符合技術要求，外徑尺寸公差為h6。傳動軸的軸向竄動量不超過。密封腔體端面對軸表面的跳動公差：軸或軸套外徑端面跳動公差:Ф10~50mm，Ф50~120mm,軸或軸套的端面及密封腔體的端面要有倒角。軸徑≤Φ30mm時為3×10°，軸徑＞Φ30mm時為4×10°。當輸送介質溫度偏高、過低或含有雜質顆粒、易燃、易爆、時，應采取相應的阻封、沖洗、冷卻、過濾等措施。密封件必須存放在密封包裝內，避免和空氣中的水分或塵埃接觸。蘇州離心泵密封經(jīng)銷廠家</p><p style="text-indent:25px">根據(jù)溫度及流體性質，確定摩擦副和輔助密封材料，以及選擇潤滑、沖洗、保溫、冷卻機械密封循環(huán)保護系統(tǒng)等。鹽城水泵密封經(jīng)銷廠家</p><p> 內密封和外密封 </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查，這一點非常重要。</span> </p> <p> <br /> 鹽城水泵密封經(jīng)銷廠家</p><p style="text-indent:25px">漣水創(chuàng)密機械制造有限公司致力于機械及行業(yè)設備，是一家貿易型的公司。公司業(yè)務分為輕型密封，中型密封，重型密封，小型水泵等，目前不斷進行創(chuàng)新和服務改進，為客戶提供良好的產(chǎn)品和服務。公司將不斷增強企業(yè)重點競爭力，努力學習行業(yè)知識，遵守行業(yè)規(guī)范，植根于機械及行業(yè)設備行業(yè)的發(fā)展。創(chuàng)密機械制造秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: 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