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<meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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href="http://www.cdcfah.com/cp/third-mifengjian_jmf/">機(jī)械密封</a>?北京M3N神通博格曼機(jī)械密封件伊格爾博格曼機(jī)械密封供應(yīng)</p><div id="37ap2gd" class="leftbox clearfix"><h1>北京M3N神通博格曼機(jī)械密封件伊格爾博格曼機(jī)械密封供應(yīng)</h1><div id="tncrd87" class="proBig"><div id="fjb4v9n" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637345523787509766/5996673.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cbd9sc2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637345523787509766/5996673.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="txz97co" 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>北京M3N神通博格曼機(jī)械密封件,神通博格曼機(jī)械密封件</p><p><span>***更新：</span>2020-12-19 07:12:43</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="cbyn8nz" 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(jī)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(jī): </span>0512-58756006</p><p><span>地址: </span>德積福民村（天霸路）</p><p>[當(dāng)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="hbi9z9w" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="n2czw7o" class="box"><p><p> 安裝時應(yīng)將密封及腔體擦洗干凈。4、緊固機(jī)械密封壓蓋時緊固螺栓應(yīng)均勻受力，防止受力不均損壞機(jī)械密封。對于快裝式機(jī)械密封在整體組裝完畢后一定不要忘記將定位片徑向移動道遠(yuǎn)離軸的位置固定。三．多級離心泵機(jī)械密封的檢查機(jī)械密封的工作原理要求機(jī)械密封內(nèi)部無任何雜質(zhì)。在組裝機(jī)械密封前要徹底清掃動環(huán)、靜環(huán)、軸套等部件。重點檢查：1、動靜環(huán)表面是否存在劃痕、裂紋等缺陷，這些缺陷存在會造成機(jī)械密封嚴(yán)重漏泄。有條件的可以用**工具檢查密封面是否平整，密封面不平整，壓力水會進(jìn)入組裝后機(jī)械密封的動靜環(huán)密封面，將動靜環(huán)分開，機(jī)械密封失效。必要時可以制作工裝在組裝前水壓試驗。2，北京M3N神通博格曼機(jī)械密封件、檢查動靜環(huán)座是否存在影響密封的缺陷。如動靜環(huán)座與動靜環(huán)密封膠圈配合表面是否存在傷痕等缺陷。3、檢查機(jī)械密封補(bǔ)償彈簧是否損壞及變形，倔強(qiáng)系數(shù)是否變化。4、檢查密封軸套是否存在毛刺、溝痕等缺陷。5，北京M3N神通博格曼機(jī)械密封件、清掃檢查所有密封膠圈是否存在裂紋、氣孔等缺陷，測量膠圈直徑是否在工差范圍內(nèi)，北京M3N神通博格曼機(jī)械密封件。6、具有泵送機(jī)構(gòu)的機(jī)械密封還要檢查螺旋泵的螺旋線是否存在裂紋、斷線等缺陷。神通博格曼機(jī)械密封件DTM。北京M3N神通博格曼機(jī)械密封件</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京M3N神通博格曼機(jī)械密封件,神通博格曼機(jī)械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637345523787509766/5996673.png"></div><p> 4.使用環(huán)節(jié)中的漏油現(xiàn)象1）壓力造成滲漏。使用中當(dāng)密封腔內(nèi)壓力>3MPa時，可能導(dǎo)致端面比壓過大，液膜難以成，密封端面磨損嚴(yán)重，發(fā)熱量增多，造成密封面熱變形。而泵在啟動、停機(jī)過程中，由于泵進(jìn)口堵塞，抽送介質(zhì)中含有氣體等原因，可能使密封腔出現(xiàn)負(fù)壓，繼而引起密封端面干摩擦，內(nèi)裝式機(jī)械密封會產(chǎn)生漏油現(xiàn)象。2）介質(zhì)問題。首先，由于密封圈等輔助元件常采用不耐酸堿和高溫的有機(jī)材料，當(dāng)介質(zhì)中含有弱酸、弱堿時，長期的使用會使其失去彈性甚至腐爛；而介質(zhì)中出現(xiàn)固體顆粒等物質(zhì)時，也會劃傷端面造成磨損，同時油垢、油污等也可能在軸表面造成堆積。此外，油溫超標(biāo)也是導(dǎo)致機(jī)械密封性能下降的主要原因，因此當(dāng)熱交換器的冷卻能力不足時，密封的使用壽命常會**縮短。3）旋動環(huán)和靜止環(huán)疲勞損壞。給油泵軸線不一致或者軸承間隙調(diào)整不當(dāng)都會引起給油泵的振動，而振動會導(dǎo)致機(jī)械密封組件中的動靜部分發(fā)生摩擦，即使其接觸面的油膜發(fā)生破壞，導(dǎo)致其失去油膜潤滑而損壞。4）生產(chǎn)管理缺失。機(jī)組工作中未按操作規(guī)程進(jìn)行，開停機(jī)不當(dāng)或人為操作錯誤導(dǎo)致供電波動使油泵倒轉(zhuǎn)等都可能引起密封發(fā)生泄漏。5）缺油運行造成干磨損壞。這種現(xiàn)象多見于底閥式安裝形式進(jìn)口處負(fù)壓。北京M3N神通博格曼機(jī)械密封件福建神通博格曼機(jī)械密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京M3N神通博格曼機(jī)械密封件,神通博格曼機(jī)械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637345523777558594/2832977.png"></div><p> 但密封效果較差。2、曲折式迷宮密封曲折式迷宮密封也分整體和鑲片兩種結(jié)構(gòu)，這種迷宮密封的結(jié)構(gòu)特點，是密封齒的伸出高度不一樣，而且高低齒相間排列，與之相配的軸表面，是特制的凹凸溝槽，這種高低齒與凹凸槽相配合的結(jié)構(gòu)，使平滑的密封間隙變成了曲折式，因此，增加了流動阻力，提高了密封效能。但只能用在有水平剖分面的缸體或隔板中，并且密封體也要作成水平剖分型。3、階梯式迷宮密封階梯式迷宮密封從結(jié)構(gòu)上分析它類似于平滑式迷宮密封，而密封效果卻與曲折式迷宮密封近似，常用于葉輪蓋板和平衡盤處。4、蜂窩式迷宮密封蜂窩式迷宮密封的密封齒片焊成蜂窩狀，以形成復(fù)雜形狀的膨脹室，它的密封性能優(yōu)于一般密封形式，適用于壓力差較大的場合，如離心式壓縮機(jī)的平衡盤密封。蜂窩式迷宮密封制造工藝復(fù)雜，密封片強(qiáng)度高，密封效果較好。五、油封密封油封密封是一種自緊式唇狀密封，其結(jié)構(gòu)簡單，尺寸小，成本低廉，維護(hù)方便，阻轉(zhuǎn)矩較小，既能防止介質(zhì)泄漏，也能防止外部塵土和其它有害物質(zhì)侵入，而且對磨損有一定的補(bǔ)償能力，但不耐高壓，所以一般用在低壓場合的化工泵上。六、動力密封化工泵在與運轉(zhuǎn)時，副葉輪所產(chǎn)生的壓頭平衡了主葉輪出口高壓液體，從而實現(xiàn)密封。</p><p> 沖洗液可以是熱水或蒸汽。九、機(jī)械密封典型失效原因分析（一）機(jī)械密封本身問題1、鑲裝不到位或不平整。2、載荷系數(shù)太大或端面比壓設(shè)計不合理。3、材質(zhì)選用不當(dāng)。4、密封面不平。5、密封面太寬或太窄。（二）輔助系統(tǒng)問題1、工況條件復(fù)雜，但沒有沖洗等輔助設(shè)施。2、沖洗管堵塞。3、冷卻管結(jié)垢。（三）介質(zhì)及工作條件問題1、介質(zhì)腐蝕性強(qiáng)。2、介質(zhì)中有固體顆粒。3、設(shè)備抽空。4、密封面結(jié)晶。5、介質(zhì)粘度太大。（四）泵的問題1、軸的加工精度不佳、串軸、跳動、安裝間隙過大。2、泵開啟后振動太大。3、壓蓋墊環(huán)不佳。4、密封箱不平。5、機(jī)械密封安裝沒有達(dá)到應(yīng)有的壓縮量。十、常見的滲漏現(xiàn)象機(jī)械密封滲漏的比例占全部維修泵的50%以上，機(jī)械密封的運行好壞直接影響到水泵的正常運行，現(xiàn)總結(jié)分析如下：1、周期性滲漏（1）泵轉(zhuǎn)子軸向竄動量大，輔助密封與軸的過盈量大，動環(huán)不能在軸上靈活移動。在泵翻轉(zhuǎn)，動、靜環(huán)磨損后，得不到補(bǔ)償位移。對策：在裝配機(jī)械密封時，軸的軸向竄動量應(yīng)小于0．1mm，輔助密封與軸的過盈量應(yīng)適中，在保證徑向密封的同時，動環(huán)裝配后保證能在軸上靈活移動（把動環(huán)壓向彈簧能自由地彈回來）。（2）密封面潤滑油量不足引起干摩擦或拉毛密封端面。青島神通博格曼機(jī)械密封件HR。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京M3N神通博格曼機(jī)械密封件,神通博格曼機(jī)械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637345524145136719/176521.png"></div><p> 依賴輔助密封的配合與另一端保持貼合，并相對滑動，從而防止流體泄漏。四、機(jī)械密封常用材料的選用清水，常溫：（動）9Cr18，1Cr13堆焊鈷鉻鎢，鑄鐵；（靜）浸樹脂石墨，青銅，酚醛塑料。河水（含泥沙），常溫：（動）碳化鎢，（靜）碳化鎢。海水，常溫：（動）碳化鎢，1Cr13堆焊鈷鉻鎢，鑄鐵；（靜）浸樹脂石墨，碳化鎢，金屬陶瓷。過熱水100度：（動）碳化鎢，1Cr13堆焊鈷鉻鎢，鑄鐵；（靜）浸樹脂石墨，碳化鎢，金屬陶瓷。汽油，潤滑油，液態(tài)烴，常溫：（動）碳化鎢，1Cr13堆焊鈷鉻鎢，鑄鐵；（靜）浸樹脂或錫銻合金石墨，酚醛塑料。汽油，潤滑油，液態(tài)烴，100度：（動）碳化鎢，1Cr13堆焊鈷鉻鎢；（靜）浸青銅或樹脂石墨。汽油，潤滑油，液態(tài)烴，含顆粒：（動）碳化鎢；（靜）碳化鎢。五、密封材料的種類及用途密封材料應(yīng)滿足密封功能的要求。由于被密封的介質(zhì)不同，以及設(shè)備的工作條件不同，要求密封材料的具有不同的適應(yīng)性。對密封材料的要求一般是：1）材料致密性好，不易泄露介質(zhì)。2）有適當(dāng)?shù)臋C(jī)械強(qiáng)度和硬度。3）壓縮性和回彈性好，變形小。4）高溫下不軟化，不分解，低溫下不硬化，不脆裂。5）抗腐蝕性能好，在酸，堿，油等介質(zhì)中能長期工作。M74D神通博格曼機(jī)械密封件。北京M3N神通博格曼機(jī)械密封件</p><p style="text-indent:25px">山西神通博格曼機(jī)械密封件。北京M3N神通博格曼機(jī)械密封件</p><p> 是否影響機(jī)械密封的正常工作狀態(tài)。⑤檢查固定端蓋的螺釘是否松動，而引起密封端蓋的偏斜。⑥檢查泵的軸向竄動和徑向振動是否超過使用的技術(shù)要求。⑦若是裝軸套的情況，檢查軸套與軸之間的密封是否損壞，位置是否正確。⑧檢查密封體內(nèi)有無密封液循環(huán)，機(jī)械密封是否處于干摩擦狀態(tài)。機(jī)械密封件的選型方法和使用要求機(jī)械密封件屬于精密、結(jié)構(gòu)較為復(fù)雜的機(jī)械基礎(chǔ)元件之一，是各種泵類、反應(yīng)合成釜、透平壓縮機(jī)、潛水電機(jī)等設(shè)備的關(guān)鍵部件。其密封性能和使用壽命取決于許多因素，如選型、機(jī)器的精度、正確的安裝使用等。一、選型方法機(jī)械密封按工作條件和介質(zhì)性質(zhì)的不同，有耐高溫、耐低溫機(jī)械密封，耐高壓、耐腐蝕機(jī)械密封，耐顆粒介質(zhì)機(jī)械密封和適應(yīng)易汽化的輕質(zhì)烴介質(zhì)的機(jī)械密封等，應(yīng)根據(jù)不同的用處選取不同結(jié)構(gòu)型式和材料的機(jī)械密封。選型的主要參數(shù)有：密封腔體壓力(MPa)、流體溫度(℃)、工作速度(m/s)、流體的特性以及安裝密封的有效空間等。選型的基本原則為：1.根據(jù)密封腔體壓力，確定密封結(jié)構(gòu)采用平衡型或非平衡型，單端面或雙端面等。2.根據(jù)工作速度，確定采用旋轉(zhuǎn)式或靜止式，流體動壓式或非接觸型。3.根據(jù)溫度及流體性質(zhì)，確定摩擦副和輔助密封材料。北京M3N神通博格曼機(jī)械密封件</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2469620.html</p></div></div></div></div></div><div id="xhoiuop" class="page-right twoColRt"><div id="odajq7n" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8yhb7cz" 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