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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>威海機(jī)械密封配件,機(jī)械密封</p><p><span>***更新：</span>2020-12-20 14:16:57</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="a3s9w4b" 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="oi87hws" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="h8d4jgi" class="box"><p><p> 3)將壓環(huán)、動環(huán)密封圈和動環(huán)一起套入彈簧座4內(nèi)，注意動環(huán)外徑上的凹槽應(yīng)對準(zhǔn)彈贊座上凸出部分.(4)將彈贊座連同彈簧、壓環(huán)、動環(huán)密封圈和動環(huán)一起套在軸上劃線定位處，然后用固緊螺釘9將旋轉(zhuǎn)部件固定在軸上，關(guān)于彈贊的頂壓縮量，外商圖紙定為4mm，國內(nèi)一般為4~6mm，具體視單彈簧和多彈簧以及彈贊尺寸而定。動環(huán)安裝后須保證能在軸上靈活移動，將動環(huán)壓向彈贊后能自動彈回.(5)將組裝好的壓蓋10裝在填料箱體上，并用螺栓均勻地分幾次擰緊(使用四氛O形密封圈，螺栓至少間隔30分鐘，并經(jīng)多次擰緊，直至不需擰緊為止).(6)總裝以后，檢查輔助裝置是否正常，查核冷卻、循環(huán)、通風(fēng)、排放、阻封等管線接頭有無接錯.要求落汽管線進(jìn)口在上部，出口在下部;冷卻水管進(jìn)口在下部，出口在上部.查對以后用手盤車，應(yīng)該輕快靈活并無卡住現(xiàn)象二正常情況下，總裝后還應(yīng)檢查軸的徑向跳動量，然后經(jīng)靜壓試驗，威海機(jī)械密封配件，跑合一段時間后交付使用.機(jī)械密封的拆卸順序與安裝順序相反，在拆卸時嚴(yán)禁用鐵器敲打，**好采用**拆卸工具順序拆卸，如密封元件上有污垢或凝策物枯結(jié)，應(yīng)先清洗污物再進(jìn)行拆卸，威海機(jī)械密封配件.啟動運轉(zhuǎn)一、啟動前的準(zhǔn)備工作1.***檢查機(jī)械密封和輔助裝置以及管線、閥門，威海機(jī)械密封配件、儀表等是否安裝齊全。安徽109-20機(jī)械密封件。威海機(jī)械密封配件</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="威海機(jī)械密封配件,機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637321361652949219/4388494.png"></div><p> 普通油封的使用壓力一般不超過。當(dāng)工作壓力超過這個值時應(yīng)選用耐壓型油封。在同一直徑條件下，不同材料制造的油封，適應(yīng)軸面旋轉(zhuǎn)線速度的能力不同。油封使用的線速度范圍一般小于15m/s。油封的工作范圍與油封使用的材料有關(guān)：材料為丁腈橡膠(NBR)時為-40~120℃，亞力克橡膠(ACM)-30~180℃，氟橡膠(FPM)-25~300℃。七、對應(yīng)軸及腔體的設(shè)計要求軸的設(shè)計：1、表面粗糙度，由于軸的速度與油量不同，一般軸的粗糙度過大或過小，都會影響到油封的泄漏與磨損。軸的表面粗糙度容許范圍為～μm；～μm。對旋轉(zhuǎn)軸用油封取～μmRz。2、硬度，旋轉(zhuǎn)軸的表面硬度一般取≥35HRC。當(dāng)介質(zhì)較臟，有來自外界的污染雜質(zhì)，或軸表速度>12m/s時，軸表面硬度應(yīng)為55HRC以上，軸表面淬火層深度>。3、軸的倒角，推薦值15°~30°，以能讓油封確實裝入，不損傷油封唇緣為原則。4、軸的加工，正確的軸加工是保證密封系統(tǒng)正常工作的決定性因素，適宜的油封軸加工方法是橫向給進(jìn)精研磨，金剛砂紙磨光。不適宜的加工方法是在車床上精加工，超精加工，滾光加工，金剛砂紙磨光（砂紙在軸向移動磨光）。5、軸的材料，主要是普通碳素結(jié)構(gòu)鋼，如C35和C45，另外還有鑄鐵，陶瓷類，樹脂塑料。CDL8-8機(jī)械密封六安橡膠波紋管機(jī)械密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="威海機(jī)械密封配件,機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637321361363056641/3465430.png"></div><p> 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。機(jī)械密封的種類及其特點分析1、推壓型機(jī)械密封和非推壓型機(jī)械密封推壓型機(jī)械密封指輔助密封沿軸或軸套機(jī)械推壓來補(bǔ)償密封面磨損的機(jī)械密封，通常就是指彈簧壓緊式機(jī)械密封。非推壓型機(jī)械密封用于輔助密封固定在軸上的機(jī)械密封，通常為波紋管機(jī)械密封。推壓型機(jī)械密封和非推壓型機(jī)械密封特點的比較見下表。表推壓型機(jī)械密封和非推壓型機(jī)械密封特點推壓型密封非推壓型密封壓縮單元單彈簧或多彈簧金屬波紋管或橡膠波紋管軸的輔助密封動態(tài)靜態(tài)商業(yè)用尺寸范圍13～508mm18～305mm溫度范圍-268℃～232℃-268℃～427℃壓力范圍特點尺寸范圍大高壓適宜于特殊設(shè)計適宜于采用特殊金屬零部件少固有的平衡型結(jié)構(gòu)靜環(huán)磨損后，動環(huán)能自由前移高溫價格一般較低一般較高2、單端面機(jī)械密封、無壓雙重機(jī)械密封和有壓雙重機(jī)械密封單端面機(jī)械密封是只有一對摩擦副，結(jié)構(gòu)簡單。</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。江陰波紋管機(jī)械密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="威海機(jī)械密封配件,機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637321361637871094/4155698.png"></div><p> 但彈簧和波紋管可補(bǔ)償液泵在起動和停機(jī)過程中因主軸運動的壓力不足，使密封面始終保持一定的密封壓力。腐蝕磨損問題由于多種原因，例如包括軸承的公差、軸端余隙、振動和主軸偏差，都會使液泵的主軸產(chǎn)生徑向和軸向運動。此外，由于將接觸面之間保持相對平行是十分困難的，因此機(jī)械密封本身的內(nèi)部產(chǎn)生移動也是很正常的。這類移動往往是由于設(shè)備和安裝公差、熱膨脹、管路應(yīng)力或主軸調(diào)試不當(dāng)所造成。為了使密封面之間始終保持互相配合，彈簧起到了機(jī)械密封與運動主軸之間的恒定調(diào)節(jié)作用。當(dāng)旋轉(zhuǎn)面和主軸之間采用人造橡膠密封時，該彈性體就會在主軸上來回運動。這種重復(fù)摩擦動作，會磨蝕主軸上的防腐材料，失去主軸的氧化膜保護(hù)層，終會在主軸的摩擦面上形成磨損溝槽，造成液體從溝槽中泄漏，并增加必要的維修工作量或甚至更換主軸。為了解決這一問題，一般在填料盒內(nèi)安裝一個可更換的軸套。然而，解決腐蝕磨損問題的辦法是去除其內(nèi)部的動態(tài)密封。現(xiàn)在，大部分主要密封制造廠生產(chǎn)非腐蝕磨損型密封，以防止液泵零件的腐蝕磨損。平衡和非平衡式密封機(jī)械密封的平衡對接觸面的密封壓力有很大影響。這一密封壓力取決于密封本身的有效截面以及填料盒內(nèi)的壓力。蕪湖輕型機(jī)械密封廠。威海機(jī)械密封配件</p><p style="text-indent:25px">錫山區(qū)橡膠波紋管機(jī)械密封件。威海機(jī)械密封配件</p><p> 同時無壓雙重機(jī)械密封外側(cè)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(zhì)(或腐蝕性相當(dāng)厲害的介質(zhì))，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(fēng)分離器的管路沖洗系統(tǒng)。(2)采用有壓雙重機(jī)械密封。有壓雙重機(jī)械密封隔離液的壓力高于介質(zhì)壓力，因而泵送介質(zhì)不會進(jìn)入密封腔。有壓雙重機(jī)械密封內(nèi)側(cè)密封起到阻止隔離液進(jìn)入泵腔的作用。因此當(dāng)輸送諸如粘性、磨蝕性及高溫介質(zhì)時，有壓雙重機(jī)械密封內(nèi)側(cè)密封由于沒有暴露在介質(zhì)中，因此可以不用昂貴的合金制作。有壓雙重機(jī)械密封外側(cè)密封**起到不使隔離液漏入大氣的作用。3、平衡型機(jī)械密封和非平衡型機(jī)械密封機(jī)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(shù)K>1，密封為非平衡型機(jī)械密封。一般非平衡型機(jī)械密封只能用于低壓。當(dāng)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(fù)荷的作用下，機(jī)械密封的密封端面會很快損壞。非平衡型機(jī)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(shù)K<1，密封為平衡型機(jī)械密封。威海機(jī)械密封配件</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2486736.html</p></div></div></div></div></div><div id="enpwtkh" class="page-right twoColRt"><div id="8n4rqmd" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="sm39mjg" class="recomPic likePro"><a 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