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id="bfhj9dx" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990768144531/1906127.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="c7mg4m9" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990768144531/1906127.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="j77ptfu" 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>沂南雙端面泵用機械密封,泵用機械密封</p><p><span>***更新：</span>2020-08-12 05:12:36</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="smjla89" 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="feldct3" class="page-proshow02"><p class="title">詳細說明</p><div id="mqn88xr" class="box"><p><p> 如油渣泵、回煉油泵、常減壓塔底泵等常見的失效現(xiàn)象。在密封面處由于干摩擦、冷卻水突然中斷，雜質(zhì)進入密封面、抽空等情況下，都會導致環(huán)面出現(xiàn)徑向裂紋；b）石墨炭化是使用碳-石墨環(huán)時密封失效的主要原因之一。由于在使用中，如果石墨環(huán)一旦超過許用溫度（一般在-105～250℃）時，其表面會析出樹脂，摩擦面附近樹脂會發(fā)生炭化，當有粘結(jié)劑時，會發(fā)泡軟化，使密封面泄漏增加，沂南雙端面泵用機械密封，密封失效；c）輔助密封件（如氟橡膠、乙丙橡膠、全橡膠）在超過許用溫度后，沂南雙端面泵用機械密封，將會迅速老化、龜裂，沂南雙端面泵用機械密封、變硬失彈?，F(xiàn)在所使用的柔性石墨耐高溫、耐腐蝕性較好，但其回彈性差。而且易脆裂，安裝時容易損壞。6.由于密封端面的磨損而造成的密封失效a）摩擦副所用的材料耐磨性差、摩擦系數(shù)大、端面比壓（包括彈簧比壓）過大等,都會縮短機械密封的使用壽命。對常用的材料，按耐磨性排列的次序為：碳化硅-碳石墨、硬質(zhì)合金-碳石墨、陶瓷-碳石墨、噴涂陶瓷--碳石墨、氮化硅陶瓷--碳石墨、高速鋼--碳石墨、堆焊硬質(zhì)合金--碳石墨。b）對于含有固體顆粒介質(zhì)，密封面進入固體顆粒是導致使密封失效的主要原因。固體顆粒進入摩擦副端面起研磨劑作用，使密封發(fā)生劇烈磨損而失效。密封面合理的間隙。江西飛力泵用機械密封型號。沂南雙端面泵用機械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沂南雙端面泵用機械密封,泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990768144531/1906127.png"></div><p> 機械密封件泄漏所發(fā)生的部位是相當廣的，幾乎涉及所有的流體輸送與儲存的物體上。泄漏的形式及種類也是多種多樣的。首先介紹泄漏形式的分類方式：1.按泄漏的機理分類(1)界面泄漏：在密封件(墊片、填料)表面和與其接觸件的表面之間產(chǎn)生的一種泄漏。如法蘭與墊片之間、填料與軸或填料箱之間的泄漏。(2)滲透泄漏：介質(zhì)通過密封件(墊片、填料)本體毛細管滲透出來，這種泄漏發(fā)生在致密性較差的植物纖維、動物纖維和化學纖維等材料制成的密封件上。(3)破壞性泄漏：密封件由于急劇磨損、變形、變質(zhì)、失效等因素，使泄漏間隙增大而造成的一種危險陛泄漏。2.按泄漏量分類液體介質(zhì)泄漏分為五級(1)無泄漏：檢測不出泄漏為準。(2)滲漏：一種輕微泄漏。表面有明顯的介質(zhì)滲漏痕跡，像滲出的汗水一樣。擦掉痕跡，幾分鐘后又出現(xiàn)滲漏痕跡。(3)滴漏：介質(zhì)泄漏成水球狀，緩慢地流下或滴下，擦掉痕跡，5min內(nèi)再現(xiàn)水球狀滲漏者為滴漏。(4)重漏：介質(zhì)泄漏較重，連續(xù)成水珠狀流下或滴下，但未達到流淌程度。(5)流淌：介質(zhì)泄漏嚴重，介質(zhì)噴涌不斷，成線狀流淌。氣態(tài)介質(zhì)泄漏分為四級(1)無泄漏：用小紙條或纖維檢查為靜止狀態(tài)，用肥皂水檢查無氣泡者。(2)滲漏：用小紙條檢查微微飄動。沂南雙端面泵用機械密封寶雞渣漿泵用機械密封泄露。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沂南雙端面泵用機械密封,泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990642626953/3909698.png"></div><p> 由于填充物被密封介質(zhì)腐蝕而產(chǎn)生泄漏的現(xiàn)象在化工行業(yè)的用泵中也時有發(fā)生，因此對填充物的選擇也是密封考慮的因素之一。螺旋密封螺旋密封也是動力密封的一種形式，它是在旋轉(zhuǎn)的軸上或者在軸的包容套上加工出螺旋槽，軸和套之間充有密封介質(zhì)。軸的旋轉(zhuǎn)使螺旋槽產(chǎn)生類似于泵的輸送作用，從而阻止密封液的泄漏。其密封能力的大小與螺旋角度、螺距、齒寬、齒高、齒的作用長度以及軸與套之間的間隙大小有關(guān)。由于密封之間不發(fā)生磨擦，因而壽命長，但由于結(jié)構(gòu)空間的限制，其螺旋長度一般較短，因而其密封能力也受到局限。在泵降速使用時，其密封效果則會大打折扣。迷宮密封在設(shè)計合理，加工精良，裝配完好、轉(zhuǎn)速較高時，迷宮密封效果很好。但在實際應用中，因此而產(chǎn)生的泄漏卻很多，分析其原因主要有：1、密封副(如軸和軸承壓蓋)配合間隙太大，而此間隙與密封效果成反比。配合面粗糙，明顯的螺旋狀車刀痕在有些情況下也加大了泄漏趨勢。2、軸承室內(nèi)潤滑油注入量太多，其溢出壓力超過了密封阻力。3、油窗或油位計安裝位置有誤，誤導了人們對油室內(nèi)潤滑油量的正確判斷。4、運轉(zhuǎn)中油溫的升高使其粘度降低，增加了泄漏的可能。5、回油槽或回油孔尺寸偏小，或受到其它障礙。</p><p> 泵吸入口處和葉片背面等處聚集氣體會導致流阻阻力增大甚至斷流，繼而使工況惡化，必需汽蝕量增加，氣體密度小，比容大，可壓縮性大，流變性強，離心力小，轉(zhuǎn)換能量性能差是引起泵工況惡化的主要原因。試驗表明，當液體中的氣量（體積比）達到3%左右時，泵的性能將出現(xiàn)陡降，當入口氣體達20%～30%時，泵完全斷流。離心泵允許含氣量（體積比）極限小于5%。葉輪形式因為石灰石漿液中含有氯離子(20000～60000)X10-6，pH值～7之間，濃度20%～35%之間，高達60%。脫硫泵的過流部件，必須選擇具有抗磨損和抗腐蝕的材料，(公眾號:泵管家)有襯膠、襯陶瓷、全金屬合金等材質(zhì)。脫硫泵一般采用懸臂式單級單吸離心泵，比轉(zhuǎn)速一般在250～350。葉輪可按照一般離心泵的方法設(shè)計，分閉式葉輪、開式葉輪等?？紤]到電廠需要比較長的連續(xù)運行時間，故對泵的汽蝕和效率都有一定的要求。一般帶背葉片，降低密封腔壓力，降低磨損。由于介質(zhì)有強腐蝕性,葉輪的防腐措施：1.使用高分子材料包覆葉輪，可以保護葉輪不受腐蝕2.使用特種金屬制成3.使用高分子材料制作葉輪。目前國際上常用的是高分子材料包覆葉輪，具有非常好的耐磨耐腐蝕性。采用可調(diào)軸承座使軸向位置可調(diào)節(jié)。貴陽福斯泵用機械密封廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沂南雙端面泵用機械密封,泵用機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990697626953/3923738.png"></div><p> 可分為旋轉(zhuǎn)式和靜止式機械密封。補償機構(gòu)隨軸旋轉(zhuǎn)的稱為旋轉(zhuǎn)式機械密封（圖2）；補償機構(gòu)不旋轉(zhuǎn)的（安裝在壓蓋內(nèi)）稱為靜止式機械密封（圖3）。補償機構(gòu)旋轉(zhuǎn)時易產(chǎn)生質(zhì)量不平衡，同時消耗攪拌功率，因此，旋轉(zhuǎn)式密封不能用于高速；而靜止式密封可用于高速。但是旋轉(zhuǎn)式密封安裝較方便，所以，普通的機械密封大多采用旋轉(zhuǎn)式結(jié)構(gòu)。按靜環(huán)的安裝位置可分為內(nèi)裝式和外裝式機械密封。靜環(huán)裝于密封壓蓋（或相當于密封壓蓋的零件）內(nèi)側(cè)（即面向主機工作腔側(cè)）的機械密封稱為內(nèi)裝式機械密封（如圖1）；反之，在密封壓蓋的外側(cè)安裝靜環(huán)時稱為外裝式機械密封（圖4）。內(nèi)裝式機械密封可用于溫度和壓力較高，以及介質(zhì)對動環(huán)及彈性元件的腐蝕性不高的工況。外裝式機械密封適用于低壓（或負壓）和介質(zhì)具有腐蝕性的工況。(圖4)密封流體在密封端面間的泄漏方向和離心力方向相反的機械密封稱為內(nèi)流型機械密封；密封流體在密封端面間的泄漏方向與離心力方向相同時稱為外流型機械密封。一般情況下，內(nèi)流型機械密封多出現(xiàn)在內(nèi)裝式機械密封中（如圖1、2、3），而外裝式機械密封多屬于外流型機械密封（如圖4）。由于外流型泄漏方向和離心力方向相同，所以外流型機械密封泄漏量較大。因此。天水水泵用機械密封選型。四川紙漿泵用機械密封</p><p style="text-indent:25px">貴州襄樊五二五泵用機械密封泄露。沂南雙端面泵用機械密封</p><p> 有時密封介質(zhì)本身就是各種懸浮漿液，這些介質(zhì)中的顆粒對密封起著磨料作用.高粘度介質(zhì)常指粘度大于Pa·s(700cP)的介質(zhì).一、含有磨料介質(zhì)的機械密封實際生產(chǎn)中經(jīng)常遇到液一固兩相或氣一固兩相介質(zhì)的密封問題，而機械密封的大敵是含有固體顆粒的溶液.磨料介質(zhì)包含以下幾種情況:1.處理物料是漿液;2.在機體和管線內(nèi)有雜質(zhì)混人;3.由于溫度變化有結(jié)晶析出或有凝固物產(chǎn)生;4.在密封端面內(nèi)有溶解物析出;5.由于化學反應有固體物質(zhì)產(chǎn)生;6.由于電化學作用在密封端面內(nèi)析出和附著金屬物質(zhì).普通單端面機械密封遇到磨料介質(zhì)時產(chǎn)生下列故璋:1.密封端面早期磨損;2.動環(huán)因間隙阻塞和密封圈摩擦力增大而不能動作;3.密封圈不能起緩沖作用;4.彈簧被雜質(zhì)阻塞不能動作;5.軸不能旋轉(zhuǎn);6.整個密封失效.對含磨料介質(zhì)的密封應采取以下措施:1.加強沖洗冷卻措施，防止雜質(zhì)在密封腔內(nèi)淤塞，如單端面密封應加注液潤滑，雙端面密封則加阻封液或阻封液和輔助注液合用;2.摩擦副材料選用硬對硬配合，常用硬質(zhì)合金對硬質(zhì)合金(或陶瓷);3.盡童采用大彈簧，減少顆粒阻塞機會；4.如用波紋管密封代替普通機械密封，建議用橡膠波紋管和焊接金屬經(jīng)過噴涂或合成橡膠包夜的波紋管，因為一般金屬波紋管對處理砂漿液能力差。沂南雙端面泵用機械密封</p><p style="text-indent:25px">伊格爾博格曼機械密封（張家港）有限公司致力于機械及行業(yè)設(shè)備，以科技創(chuàng)新實現(xiàn)***管理的追求。公司自2018-01-09成立以來，投身于[ "機械密封", "泵用機械密封", "釜用機械密封", "攪拌器機械密封" ]，是機械及行業(yè)設(shè)備的主力軍。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)額達到2000-3000萬元。張家港博格曼始終關(guān)注自身，在風云變化的時代，我們對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使我們在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/887976.html</p></div></div></div></div></div><div id="74zbbd4" class="page-right twoColRt"><div id="b7vcmtn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t2i8bn4" 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="mlikmos" 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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