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**** 漣水創(chuàng)密機械供應</h1><div id="uiuryhn" class="proBig"><div id="72ezgab" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dbnev2c" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="woqh2rd" 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>淮安離心泵密封中間商,封</p><p><span>***更新：</span>2020-09-21 15:07:58</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="3t8yajf" 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="vt7nplr" class="page-proshow02"><p class="title">詳細說明</p><div id="u7ofrn2" class="box"><p><p> 高溫熱油泵 </p> <p> 對于煉油裝置中有一部分泵的介質溫度均在200°C以上，有的甚至超過300 °C，此時若機械密封沖洗方案的選擇為PLAN53B，應多加考慮PLAN53B 系統(tǒng)中蓄能器皮囊的耐溫問題。通常情況下，蓄能器皮囊若為普通橡膠材質，耐溫不超過120 °C，即使是氟橡膠耐溫也不超過200 °C。 </p> <p> API 682 中PLAN53B 系統(tǒng)的布置方式如圖1 所示，從圖中可以看出高溫的密封隔離液從密封腔直接經(jīng)過蓄能器，然后再經(jīng)過冷卻器，淮安離心泵密封中間商，再回到密封腔，淮安離心泵密封中間商。此種布置方式在隔離液溫度升高之后，可能會導致蓄能器內介質溫度升高，致使皮囊失效，淮安離心泵密封中間商。在實際安裝過程中，應該做好對裝配圖的核對工作，并檢各種零件表面是否出現(xiàn)了劃痕、缺點等情況?；窗搽x心泵密封中間商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安離心泵密封中間商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg"></div><p> 給水泵內的高壓水雖經(jīng)過密封件，但依然有一定的壓力，為了不讓給水泵內的水通過軸與密封件之間的間隙外泄，就從凝結水泵出口或除鹽水母管引以水源為密封水。 </p> <p> 給水泵內的水是具有一定溫度的水，高溫水會通過泵的轉軸或泵體金屬把熱量傳遞給軸承，使軸承溫度升高。為了控制熱量外傳，所以密封水也起著冷卻的作用。 </p> <p> 在密封水通過密封件時，水在軸與密封件之間形成水膜，防止在此處軸與密封件之間的間隙外泄，造成大量的工質損失；同時高溫給水會通過泵軸和泵體金屬把熱量傳遞給軸承使軸承溫度升高。嚴重時還會使軸承燒毀；高速旋轉的軸與密封件之間的間隙很小，當失去密封水時，此處的水膜也就遭到破壞，軸與密封件很可能發(fā)生摩擦，使給水泵振動增大，嚴重時將造成設備損壞。密封水的回水一般采用多級水封管引入凝汽器。 </p> <p> <br /> 江蘇管道泵密封廠家直供在機泵的實際使用過程中，一定要對機泵進行合理使用，盡量避免對機泵進行超負荷運行。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安離心泵密封中間商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503162724609/640384.jpg"></div><p> 墊片密封機理： </p> <p> 泄漏即介質從有限空間內部流到外部，或從外部進入有限空間內部的人們不希望發(fā)生的現(xiàn)象 ,介質流動通過內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，這就會造成密封面不完全吻合，從而發(fā)生泄漏。要減少泄漏，就必須使接觸面很大程度地嵌合，即減小泄漏通道的截面積，增加泄漏阻力，并使之大于泄漏推動力。 </p> <p> 對密封面施加壓緊載荷，以產(chǎn)生壓緊應力，可提高密封面的接觸程度，當應力增大到足以引起表面產(chǎn)生明顯的塑性變形時，就可以填補密封面的間隙，堵塞泄漏通道。使用墊片的目的就是利用墊片材料在壓緊載荷的作用下較容易產(chǎn)生塑性變形的特性，使之填平法蘭密封面的微小凹凸不平，從而實現(xiàn)密封。 </p><p> 油封的裝配，無論油封的安裝部分設計和油封的選擇多么適宜，如果組裝的粗糙，也不能充分發(fā)揮油封預定的功能。 </p> <p> <span style="font-size:12px;">油封安裝時,外表面應涂上適當?shù)臐櫥瑒?，唇口應涂上適合的清潔潤滑脂，帶有防塵唇的油封，應在主付唇間填滿適合的清潔潤滑脂，再進行裝配.把油封的密封唇口端朝向密封介質一側,切忌反向裝配.油封裝入座孔時,應采用**工具推入,防止位置偏斜.油封唇緣通過的螺紋,鍵槽,花鍵等處應采取各種措施來防止唇緣損傷,并用**工具裝配.油封應水平放入座孔，并均勻加壓，請勿傾斜強制推進。</span> </p> <p> <br /> 泵中常用的是橡膠O型圈。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安離心泵密封中間商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293635341797/9903144.jpg"></div><p> 離心泵用機械密封檢修中的幾個誤區(qū) </p> <p> 彈簧壓縮量越大密封效果越好其實不然，彈簧壓縮量過大，可導致摩擦副急劇磨損，瞬間燒損;過度的壓縮使彈簧失去調節(jié)動環(huán)端面的能力，導致密封失效。2、動環(huán)密封圖越緊越好其實動環(huán)密封圈過緊有害無益。一是加劇密封圈與軸套間的磨損，過于早漏;二是增大了動環(huán)軸向調整、移動的阻力，在工況變化頻繁時無法適時進行調整;三是彈簧過度疲憊易損壞;四是使動環(huán)密封圈變形，影響密封效果。 3、靜環(huán)密封圈越緊越好靜環(huán)密封圈基本處于靜止狀態(tài)，相對較緊密封效果會好些，但過緊也是有害的。一是引起靜環(huán)密封因過度變形，影響密封效果;二是靜環(huán)材質以石墨居多，一般較脆，過度受力極易引起碎裂;三是安裝、拆卸困難，極易損壞靜環(huán)。軸彎曲變形時橫截面形心沿與軸線垂直方向的線位移稱為撓度，機械密封要求兩個密封端面之間受力均勻?；窗补艿辣妹芊馀l(fā)廠</p><p style="text-indent:25px">密封件必須避開強光照射，避免密封件被空氣中臭氧侵蝕或提早老化?；窗搽x心泵密封中間商</p><p> 機械密封動、靜環(huán)之間的工作情況，大多數(shù)是處在邊界潤滑和半液體潤滑狀態(tài)下，而半液體潤滑能夠在摩擦系數(shù)較小即磨損與發(fā)熱令人滿意的情況下，獲得好的密封效果。 </p> <p> 機械密封的動、靜環(huán)之間的摩擦情況： </p> <p> 半液體潤滑： </p> <p> 滑動表面的凹坑處存有液體，接觸面之間維持一層很薄的液膜，所以發(fā)熱和磨損情況均較好，由于動、靜環(huán)之間的液膜在其出口處有表面張力，故限制了液體的泄露。 </p> <p> 完全液體潤滑： </p> <p> 但由于在這種情況下動、靜環(huán)之間的縫隙較大，故起不到密封作用，泄露嚴重。當動、靜環(huán)之間的壓力不足，而使間隙增大時，液膜增厚，這時不存在固體接觸，故無摩擦現(xiàn)象。在實際應用中一般不允許有這種情況出現(xiàn)（受控膜機械密封除外）。 </p> <p> 干摩擦： </p> <p> 滑動摩擦面上無液體進入，因而無液膜存在，塵土和氧化層，以及吸附的氣體分子等。當動、靜環(huán)運轉時，其結果必然是使摩擦面發(fā)熱、磨損加劇而造成泄露。、邊界潤滑： </p> <p> 由于表面不是特別平的，而是凹凸不平，在凸出會有接觸磨損，而在凹處則保持液體的潤滑性能，造成邊界潤滑。當動、靜環(huán)之間的壓力增大或者液體在摩擦面上形成液膜的能力較差時，液體將從間隙中被擠出。邊界潤滑的磨損和發(fā)熱程度為中等。淮安離心泵密封中間商</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(mào)易型公司。公司業(yè)務涵蓋輕型密封，中型密封，重型密封，小型水泵等，價格合理，品質有保證。公司秉持誠信為本的經(jīng)營理念，在機械及行業(yè)設備深耕多年，以技術為先導，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造機械及行業(yè)設備良好品牌。創(chuàng)密機械制造憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1369490.html</p></div></div></div></div></div><div id="jteaxpb" class="page-right twoColRt"><div id="w3zrxoa" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rmdebnj" 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" 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</p></a></div><div id="pcdjacz" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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