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id="xqdprya" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637321487675449219/9092623.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ztq7evh" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637321487675449219/9092623.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fu2jtvc" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>蘇州水泵機械密封,機械密封</p><p><span>***更新：</span>2021-01-13 11:29:31</p><p><span id="click" >瀏覽次數：2次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="kovx8tv" 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="h2rti3d" class="page-proshow02"><p class="title">詳細說明</p><div id="i3hjvrt" class="box"><p><p> 177°C）鍋爐給水和熱水，帶砂或管道渣子的臟的或被污染的流體和水，非聚合流體。PLAN52（帶無壓緩沖罐的串聯式密封）方案描述：外部儲液罐為配置外側密封提供緩沖液，正常操作時，由內部輸液環(huán)保持循環(huán)，儲液罐連續(xù)排放蒸汽至蒸汽回收系統(tǒng)，蘇州水泵機械密封，并保持比密封腔壓力小。采用原因：外置機械密封是主機封，沒有或很少的工藝排放物，不允許工藝過程污染。應用場合：應用于雙端面非承壓密封（串聯），高蒸汽壓流體，輕質烴，危險/有毒流體，傳熱流體。PLAN53A（帶有壓密封液的雙端面密封）方案描述：外設加壓隔離液儲罐提供清潔液體給密封腔，循環(huán)由內部輸液環(huán)完成。隔離液儲罐的壓力大于被密封工藝液體壓力。采用原因：隔離工藝流體，零工藝流體排放，蘇州水泵機械密封，蘇州水泵機械密封。應用場合：應用于雙端面承壓密封（雙重），高蒸汽壓流體，輕質烴，危險/有毒流體，傳熱流體，臟、腐蝕和聚合流體。PLAN53B（強制循環(huán)密封液的雙端面密封）方案描述：由外部管道系統(tǒng)為加壓雙端面密封裝置的外側密封提供液體，預先加了壓的氣囊蓄壓器提供壓力給循環(huán)系統(tǒng)，流動由內部輸液環(huán)來保持，循環(huán)系統(tǒng)中的熱量由空氣冷卻或水冷卻熱交換器除去。采用原因：分離工藝流體，零流程排放，比53A方案壓力高。安徽109-25機械密封件。蘇州水泵機械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州水泵機械密封,機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637321487675449219/9092623.png"></div><p> 會導致環(huán)表面出現徑向裂紋，從而使動靜環(huán)急劇磨損，密封面泄漏迅速增加。碳化鎢環(huán)熱裂現象較常見。2.發(fā)泡、炭化使用中如石墨環(huán)超過允許使用溫度，則其表面會析出樹脂，摩擦面附近樹脂會發(fā)生炭化，當有黏結劑時，又會發(fā)泡軟化，使密封面泄漏量增加，密封失效。3.老化、龜裂、溶脹橡膠超過許用溫度繼續(xù)使用，將迅速老化、龜裂、變硬失彈。如是有機介質則溶脹失彈，這些均會導致密封失效。凡因熱損引起的密封失效，關鍵在于盡量降低摩擦熱，改善散熱，使密封面處不發(fā)生溫度劇變。磨損失效摩擦副若用材耐磨性差、摩擦因數大、端面比壓（包括彈簧比壓）過大、密封面進入固體顆粒等均會使密封面磨損過快而引起密封失效。采用平衡型機械密封以減少端面比壓及安裝中適當減少彈簧壓力，有利于克服因磨損引起的失效，此外，選用良好的摩擦副材料可以減輕磨損。按耐磨次序材料排列為碳化鎢-碳石墨、硬質合金-碳石墨、陶瓷（氧化鋁）-碳石墨、噴涂陶瓷-碳石墨、氧化硅陶瓷-碳石墨、高速鋼-碳石墨、堆焊硬質合金-碳石墨。蘇州水泵機械密封亳州109-55機械密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州水泵機械密封,機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637321487592958984/2482678.png"></div><p> 一、機械密封概述機械密封（端面密封）是一種用來解決旋轉軸與機體之間密封的裝置。它是由至少一對垂直于旋轉軸線的端面的流體壓力和補償機構彈力（或磁力）的作用及輔助密封的配合下保持貼合下并相對滑動而構成防止流體泄漏的裝置，常用于泵、壓縮機、反應攪拌釜等旋轉式流體機械，也用于齒輪箱、船舶尾軸等密封。因此，機械密封是一種通用的軸封裝置。機械密封結構多種多樣，常用的機械密封結構是端面密封。端面密封的靜環(huán)、動環(huán)組成一對摩擦副，摩擦副的作用是防止介質泄漏。它要求靜環(huán)、動環(huán)，具有良好的耐磨性，動環(huán)可以在軸向靈活的移動，自動補償密封面磨損，使之與靜環(huán)良好的貼合；靜環(huán)具有浮動性，起緩沖作用。為此，密封面要求有良好的加工質量，保證密封副有良好的貼合性能。構成機械密封的基本元件有靜環(huán)、動環(huán)、壓蓋、推環(huán)、彈簧、定位環(huán)、軸套、動環(huán)密封圈、靜環(huán)密封圈軸套密封圈等。彈性元件（彈簧、波紋管）它主要起預緊、補償和緩沖的作用，要求始終保持足夠的彈性來克服輔助密封和傳動件的摩擦和動環(huán)等的慣性，保證端面密封副良好的貼合和動環(huán)的追隨性，材料要求耐腐蝕、耐疲勞。輔助密封。</p><p> 同時無壓雙重機械密封外側密封就能在維修前起到密封和容納泄漏液體的作用。對一些有毒、含顆粒介質(或腐蝕性相當厲害的介質)，一般可考慮以下方法：(1)采用合適的環(huán)境控制措施，如外沖洗+帶旋風分離器的管路沖洗系統(tǒng)。(2)采用有壓雙重機械密封。有壓雙重機械密封隔離液的壓力高于介質壓力，因而泵送介質不會進入密封腔。有壓雙重機械密封內側密封起到阻止隔離液進入泵腔的作用。因此當輸送諸如粘性、磨蝕性及高溫介質時，有壓雙重機械密封內側密封由于沒有暴露在介質中，因此可以不用昂貴的合金制作。有壓雙重機械密封外側密封**起到不使隔離液漏入大氣的作用。3、平衡型機械密封和非平衡型機械密封機械密封密封腔中的壓力作用在動環(huán)上形成了閉合力，端面間的液膜形成開啟力。載荷系數K>1，密封為非平衡型機械密封。一般非平衡型機械密封只能用于低壓。當壓力大于一定的限度，密封面間的液膜就會被擠出。在喪失液膜潤滑及高負荷的作用下，機械密封的密封端面會很快損壞。非平衡型機械密封不能平衡液體對端面的作用，端面比壓隨流體壓力的上升而上升。載荷系數K<1，密封為平衡型機械密封。江陰水泵機械密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州水泵機械密封,機械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637321361597978516/3563835.png"></div><p> 或殼體）的端面應倒角并修光，以免裝配時碰傷動靜環(huán)密封圈。十一、機封正常運行和維護問題1、啟動前的準備工作及注意事項a檢查機械密封，以及附屬裝置和管線安裝是否齊全，是否符合技術要求。b機械密封啟動前進行靜壓試驗，檢查機械密封是否有泄漏現象。若泄漏較多，應查清原因設法消除。如仍無效，則應拆卸檢查并重新安裝。一般靜壓試驗壓力用2-3公斤/平方厘米。c按泵旋向盤車，檢查是否輕快均勻。如盤車吃力或不動時，則應檢查裝配尺寸是否錯誤，安裝是否合理。2、安裝與停運a啟動前應保持密封腔內充滿液體。對于輸送凝固的介質時，應用蒸氣將密封腔加熱使介質熔化。啟動前必須盤車，以防止突然啟動而造成軟環(huán)碎裂。b對于利用泵外封油系統(tǒng)的機械密封，應先啟動封油系統(tǒng)。停車后停止封油系統(tǒng)。c熱油泵停運后不能馬上停止封油腔及端面密封的冷卻水，應待端面密封處油溫降到80度以下時，才可以停止冷卻水，以免損壞密封零件。3、運轉a泵啟動后若有輕微泄漏現象，應觀察一段時間。如連續(xù)運行4小時，泄漏量仍不減小，則應停泵檢查。b泵的操作壓力應平穩(wěn)，壓力波動不大于1公斤/平方厘米。c泵在運轉中，應避免發(fā)生抽空現象，以免造成密封面干摩擦及密封破壞。江蘇波紋管機械密封件。蘇州水泵機械密封</p><p style="text-indent:25px">無錫水泵機械密封件。蘇州水泵機械密封</p><p> 典型故障，限流孔板堵塞，檢查管子末端溫度。4.沖洗方案13方案：從密封腔，通過限流孔板到泵的進口的二次循環(huán)，立式泵的標準沖洗方案。原因：立式泵密封腔的不間斷排氣，密封腔除熱。場合：立式泵，密封腔壓力大于進口壓力，混有中等大小的固體的常溫流體，非聚合流體。維護：啟動立式泵之前，彎好排氣口管路，使用口徑小為，計算流量，以確定使機械密封腔流量充足的限流孔板尺寸，通過合適的限流孔板和喉部襯套的尺寸的確定來減少密封腔壓力，典型故障，限流孔板堵塞，檢查管子末端的溫度。5.沖洗方案14方案：從泵的出口沖洗機封，再循環(huán)到帶限流孔板的泵進口，方案11和13的結合。原因：立式泵機封腔的連續(xù)排氣，密封腔除熱，增加密封腔的壓力和流體汽化的臨界空間。場合：立式泵，常溫、清潔非聚合流體。維護：使用口徑小為，計算流量，以確定使機械密封腔流量充足的限流孔板尺寸，通過合適的限流孔板和喉部襯套尺寸來確定增加沸點臨界范圍，沖洗密封面，啟動立式泵之前，做好排氣管的彎曲。典型故障，限流孔板堵塞，檢查管子末端的溫度。6.沖洗方案21方案：從泵出口經限流孔板和冷卻器沖洗機封，加到方案11的冷卻器，增加了除熱能力。原因：機封冷卻，降低流體溫度。蘇州水泵機械密封</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2830412.html</p></div></div></div></div></div><div id="2gia7cz" class="page-right twoColRt"><div id="c8m2n3o" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8z2z878" 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" 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