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class="twoCol"><div id="iu8y88y" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_mifengjian/">密封件</a>?<a href="http://www.cdcfah.com/cp/third-mifengjian_jmf/">機械密封</a>?丹東JCS2A/43安德里茲泵用機械密封伊格爾博格曼機械密封供應(yīng)</p><div id="h2o23jv" class="leftbox clearfix"><h1>丹東JCS2A/43安德里茲泵用機械密封伊格爾博格曼機械密封供應(yīng)</h1><div id="ceb8zrn" class="proBig"><div id="ko8mqmo" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637377435732314453/1973162.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="po8damt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637377435732314453/1973162.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uyf7a3g" 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(guān)鍵詞：</span>丹東JCS2A/43安德里茲泵用機械密封,安德里茲泵用機械密封</p><p><span>***更新：</span>2021-01-30 05:12:37</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="8i23mln" 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="ktqnuwt" class="page-proshow02"><p class="title">詳細說明</p><div id="mv8frta" class="box"><p><p> 目前動環(huán)和軸套的密封方法可分為三類：輔助密封圈軸向安裝的動環(huán)、輔助密封圈徑向安裝的動環(huán)和帶波紋管的動環(huán)。輔助密封圈軸向安裝的動環(huán)（圖18），靠彈簧力壓緊密封圈來實現(xiàn)密封。彈簧力可視為不變化，密封可靠、使用壽一命長、安裝較方便，從而得到應(yīng)用。輔助密封圈徑向安裝的動環(huán)（圖19），靠密封圈的過盈和彈性實現(xiàn)密封，其材料大多用聚四氟乙烯和合成橡膠。隨著使用時間的延長，這兩種材料分別出現(xiàn)冷流變形和老化而喪失彈性。有文獻記載，這種結(jié)構(gòu)的密封，有40%的失效發(fā)生在輔助密封圈部位。第三種動環(huán)是指波紋管型密封，將動環(huán)和波紋管制成一個整體（圖8），故不需要動環(huán)密封圈。靜環(huán)安裝在機器設(shè)備的殼體、壓蓋、法蘭等靜止部位上，它與動環(huán)組成的密封端面防止介質(zhì)泄漏，也有補償環(huán)和非補償環(huán)之分。當補償機構(gòu)設(shè)計在動環(huán)一側(cè)時，丹東JCS2A/43安德里茲泵用機械密封，密封端面磨損后，靜環(huán)不能進行補償，叫做非補償型靜環(huán)。反之，稱為補償型靜環(huán)，當密封端面磨損后，靜環(huán)在彈性元件作用下，做軸向移動進行補償。非補償型靜環(huán)應(yīng)用較多，都用于旋轉(zhuǎn)型密封。靜環(huán)與壓蓋的密封和固定方式有兩種，一是浮動型，丹東JCS2A/43安德里茲泵用機械密封，一是固定型，丹東JCS2A/43安德里茲泵用機械密封。具體的結(jié)構(gòu)種類很多，圖20和圖21給出了較為典型的結(jié)構(gòu)。順義區(qū)11-LP-D-S32-D20/50-DE安德里茲泵用機械密封。丹東JCS2A/43安德里茲泵用機械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="丹東JCS2A/43安德里茲泵用機械密封,安德里茲泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637377435732314453/1973162.png"></div><p> 依靠介質(zhì)壓力和彈簧力使動靜環(huán)之間的密封端面緊密貼合，阻止了介質(zhì)的泄漏。摩擦副表面磨損后，在彈簧（5）的推動下實現(xiàn)補償。為了防止介質(zhì)通過動環(huán)與軸之間泄漏，裝有動環(huán)密封圈（3）；而靜環(huán)密封圈（7）則阻止了介質(zhì)沿靜環(huán)和壓蓋（8）之間的泄漏。長期的實踐證明，輔助設(shè)施的作用不可忽視。從國外進來的泵，在提供的機械密封圖紙上，不僅有密封結(jié)構(gòu)圖，而且在這張圖上明確地畫出了輔助設(shè)施的安裝圖，并注明輔助設(shè)施的種類和數(shù)量。國內(nèi)的制造廠有的開始注意這個問題；有的還沒認識，這是不應(yīng)該的。輔助設(shè)施不僅起冷卻和潤滑作用，還可改善密封的工作環(huán)境，從而減少泄漏量和延長使用壽命。因此有人把輔助設(shè)施看作是機械密封的組成部分。無疑，這一觀點將被越來越多的人接受。機械密封被應(yīng)用于各種旋轉(zhuǎn)機械的軸封，工況不同，使用的密封也不同。機械密封按使用條件可分為高速和普通機械密封；高壓和低壓機械密封；高溫、常溫和低溫機械密封；泵用、壓縮機用和釜用機械密封以及耐腐蝕機械密封和抗顆粒的機械密封等。通常都按機械密封的結(jié)構(gòu)和原理來分類，例如旋轉(zhuǎn)式和靜止式機械密封；內(nèi)流式和外流式機械密封；平衡型和非平衡型機械密封等。按補償機構(gòu)彈性元件的運動狀況。丹東JCS2A/43安德里茲泵用機械密封薊州區(qū)安德里茲泵用機械密封25-LP-D-S32-D20/60-DE。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="丹東JCS2A/43安德里茲泵用機械密封,安德里茲泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637377435991757812/987626.png"></div><p> 動環(huán)靠密封室中液體的壓力使其端面壓緊在靜環(huán)端面上，并在兩環(huán)端面上產(chǎn)生適當?shù)谋葔汉捅３忠粚訕O薄的液體膜而達到密封的目的。壓緊元件產(chǎn)生壓力，可使泵在不運轉(zhuǎn)狀態(tài)下，也保持端面貼合，保證密封介質(zhì)不外漏，并防止雜質(zhì)進入密封端面。密封元件中密封動環(huán)與軸的間隙，靜環(huán)與壓蓋的間隙的作用，同時彈性元件對泵的振動，沖擊起緩沖作用。機械密封在實際運行中是與泵的其它零部件一起組合起來運行的，機械密封的正常運行與它的自身性能，外部條件都有很大的關(guān)系。但是我們要首先保證自身的零件性能，輔助密封裝置和安裝的技術(shù)要求，使機械密封發(fā)揮它應(yīng)有的作用。機械密封在化工泵使用中存在的問題：機械密封的零件的故障旋轉(zhuǎn)設(shè)備在運行當中，密封端面經(jīng)常會出現(xiàn)磨損、熱裂、變形、破損等情況，彈簧用久了也會松弛，斷裂和腐蝕。輔助密封圈也會出現(xiàn)裂口、扭曲和變形、破裂等情況。機械密封的故障表現(xiàn)及原因：機械密封振動、發(fā)熱。設(shè)備旋轉(zhuǎn)過程中，會使動靜環(huán)貼合端面粗糙，動靜環(huán)與密封腔的間隙太小，由于振擺引起碰撞從而引起振動。有時由于密封端面耐腐蝕和耐溫性能不良，或是冷卻不足或端面在安裝時夾有顆粒雜質(zhì)，也會引起機械密封的振動和發(fā)熱。機械密封介質(zhì)泄漏。</p><p> 工作時，靠彈簧和密封介質(zhì)（工作溶液）的壓力在旋轉(zhuǎn)的動環(huán)和靜環(huán)的接觸表面上產(chǎn)生適當?shù)膲壕o力，使兩端面緊密貼合，并在端面間產(chǎn)生一層極薄的液體膜而達到密封的目的，液體膜具有外層流體動壓力與內(nèi)層靜壓力（或稱分子親和力），起著潤滑和平衡壓力作用。四、修時應(yīng)注意以下操作技術(shù)要點。（l）當靜環(huán)或動環(huán)密封圈難安裝到位時，可在此處涂抹潤滑油。（2）彈簧彈力不足時，動環(huán)與靜環(huán)密封面間容易產(chǎn)生間隙，可移動固定螺釘，以增加彈簧彈力或更換彈簧。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（塔、釜、罐、池）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；（5）介質(zhì)中腐蝕性、聚合性、結(jié)膠性物質(zhì)增多；（6）環(huán)境溫度急劇變化；（7）工況頻繁變化或調(diào)整；（8）突然停電或故障停機等。離心泵在正常運轉(zhuǎn)中突然泄漏，如不能及時發(fā)現(xiàn)，往往會釀成較大事故或損失，須予以重視并采取有效措施。安德里茲泵用機械密封SAF-53。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="丹東JCS2A/43安德里茲泵用機械密封,安德里茲泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637377435901845703/36198.png"></div><p> 只有幾毫米）所以重量輕，消耗材料少，使用方法簡單，安裝、拆卸方便，更為突出的優(yōu)點還在于O形圈具有良好的密封能力，使用范圍很寬。靜密封工作壓力可達100MPa以上，動密封也可達30Mpa。適用溫度為-60～200℃，可滿足多種介質(zhì)的使用要求。因此在泵的設(shè)計中得到越來越***的應(yīng)用。O形密封圈安裝在溝槽和被密封面之間，有一定壓縮量，由此產(chǎn)生的反彈力給予被密封的光滑面和溝槽底面以初始的壓縮應(yīng)力。從而起到密封作用。當被密封的液體壓力增大時，O形圈的變形也隨之增大，從而傳遞給密封面的壓力也增大，密封的作用也增大。這就是O形密封圈具有良好密封能力的原因。2、墊片密封化工泵常用的密封方法，有墊片密封法。墊片是離心泵靜密封的基本元件，使用范圍非常***。墊片的選型主要根據(jù)化工泵輸送介質(zhì)、溫度、壓力和腐蝕性等因素決定。墊片密封機理：泄漏即介質(zhì)從有限空間內(nèi)部流到外部，或從外部進入有限空間內(nèi)部的人們不希望發(fā)生的現(xiàn)象，介質(zhì)流動通過內(nèi)外空間的交界面即密封面發(fā)生泄漏。造成泄漏的根本原因是由于接觸面上存在間隙，而接觸面兩側(cè)的壓力差、濃度差則是泄漏的推動力。由于密封面形式及加工精度等因素的影響，密封面上存在間隙在所難免。哈爾濱安德里茲泵用機械密封25-LP-D-S32-D20/60-DE。丹東JCS2A/43安德里茲泵用機械密封</p><p style="text-indent:25px">東城區(qū)11-LP-D-S32-D20/50-DE安德里茲泵用機械密封。丹東JCS2A/43安德里茲泵用機械密封</p><p> 比YG6大1倍多，為／℃（10～500℃時）。這兩點決定了耐熱沖擊性能不如YG6好。正因為線膨脹系數(shù)較大，和馬氏體不銹鋼接近（10～500℃時為11X10-6／℃），為和環(huán)座焊接提供了有利條件。焊接時需在環(huán)和座之間鋪放一層鎳基粉末，置于真空電阻爐中，經(jīng)1100℃高溫熔焊，然后進行回火處理，以消除焊接應(yīng)力。由于是焊接的密封環(huán)，硬質(zhì)合金環(huán)的厚度可以比YG6薄，毛坯的厚度也只有3～3．5mm。以因密度小，是YG6的一半（7~），因此，可節(jié)約貴重金屬，價格較低。這種合金的牌號為CN15，其中Cr3C285%，Ni為15%，由北京硬質(zhì)合金廠研制成功。熱裝式密封環(huán)以其性能***應(yīng)用，但過盈量過大則硬質(zhì)合金在較大擠壓應(yīng)力作用下產(chǎn)生變形；過盈量過小，使用時會松脫。經(jīng)長期觀察分析，熱裝式密封環(huán)松脫主要是由于環(huán)座和硬質(zhì)合金環(huán)兩者線膨脹純利系數(shù)的差別，工作出現(xiàn)間隙。由此可見，熱裝式密封環(huán)失效的根本原因主要有二：一是過盈值小，三是環(huán)座材料選擇不當，線膨脹系數(shù)太大。確定過盈值應(yīng)遵循的原則：1）從傳遞扭矩的角度考慮過盈值應(yīng)足夠大。2）從環(huán)的變形的角度考慮過盈值不可過大。綜合起來，在滿足環(huán)和座傳遞扭矩的情況下，取小的過盈值。丹東JCS2A/43安德里茲泵用機械密封</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3075506.html</p></div></div></div></div></div><div id="kvn8szb" class="page-right twoColRt"><div id="8rtvs3y" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rbdv3lc" class="recomPic likePro"><a 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