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class="searchbox"><div id="usfh97b" class="searchLt"><div id="nbt2hdk" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="f8mgovn" class="clearfix searchWrap"><div id="tzg7yv3" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="8d38yke" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = 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src="https://tyunfile.71360.com/UploadFile/ygebgm/637342063303154296/3326922.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7yqxegs" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637342063303154296/3326922.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="srt22ul" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>烏海BIA神通博格曼機(jī)械密封,神通博格曼機(jī)械密封</p><p><span>***更新：</span>2021-02-06 03:11:46</p><p><span id="click" >瀏覽次數(shù)：9次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ynkhjqs" 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="rg3pqse" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3suw7xe" class="box"><p><p> 在機(jī)械密封水泵的常見故障中，機(jī)械密封的故障大約占整個(gè)維修工作量的一半?？梢姍C(jī)械密封在機(jī)泵維修中所占的位置。由于機(jī)泵所輸送的介質(zhì)千差萬別，工藝條件各不相同，所以了解這些情況對機(jī)封的選擇及維護(hù)很重要。結(jié)合多年來在機(jī)封選擇和維修中的經(jīng)驗(yàn)，介紹幾種特殊工況下機(jī)械密封的工作特點(diǎn)和注意事項(xiàng)。一、高溫下的機(jī)械密封一般情況下，介質(zhì)的溫度超過120℃即認(rèn)為是高溫密封。此時(shí)機(jī)械密封存在的主要問題有：(1)由于摩擦副端面溫度升高，導(dǎo)致密封端面間液膜氣化，摩擦系數(shù)隨之增大，烏海BIA神通博格曼機(jī)械密封，磨損加劇，溫升加大，密封環(huán)產(chǎn)生熱變形或熱裂而失效；(2)機(jī)械密封中的輔助密封圈材料一般為橡膠或聚四氟乙烯，由于長時(shí)間在高溫環(huán)境中，容易老化和分解，造成密封失效；(3)高溫下機(jī)械密封的彈性元件易產(chǎn)生疲勞和蠕變，使密封失效；(4)高溫會(huì)加劇金屬材料的腐蝕，縮短機(jī)封的使用壽命，烏海BIA神通博格曼機(jī)械密封。為保證機(jī)械密封在高溫環(huán)境下正常工作，可以采取如下措施：1、給機(jī)封增加冷卻沖洗裝置。2，烏海BIA神通博格曼機(jī)械密封、選擇耐高溫的材料，根據(jù)不同的工作溫度選用不同的材料。丁腈橡膠溫度上限為80℃，硅橡膠和氟橡膠為200℃，聚四氟乙烯為250℃。另外，機(jī)械密封中的非金屬摩擦副多采用石墨浸漬材料制成。EX神通博格曼機(jī)械密封。烏海BIA神通博格曼機(jī)械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="烏海BIA神通博格曼機(jī)械密封,神通博格曼機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637342063303154296/3326922.png"></div><p> 石家莊離心泵廠家?guī)私鈾C(jī)械密封及材質(zhì)，一、金屬材料在某些機(jī)械密封中，由于金屬的加工性能好，常常使用金屬材料作為密封面材料。一般情況下都使用合金來制造密封，如，鎳合金(鎳合金鑄鐵)、硬質(zhì)合金(含鉆、鉻和欽的合金)等;對于一些不耐腐蝕的如，鑄鐵、模具鋼和軸承鋼等特殊鋼常用于低負(fù)荷、油類液體。在大亞灣核電站中，有一些使用金屬做機(jī)械密封密封面的例子。CRF循環(huán)水泵機(jī)械密封的動(dòng)環(huán)，它使用耐海水鑄鐵制造:SRI冷卻水泵機(jī)械密封的靜環(huán)，使用不銹鋼制造?，F(xiàn)在主要的機(jī)械密封硬環(huán)材料主要有硬質(zhì)合金(YG6),SiC、三氧化二鋁等，在船用機(jī)械密封中還有更硬的材料碳化棚，由于其硬度更高，加工難度較大，故使用量較少。二、工程陶瓷(氧化鋁)氧化鋁硬度高、耐磨性好，但是耐熱沖擊能力低。在氧化鋁中添加少量金屬元素制成氧化鋁金屬陶瓷。其成分中88～92%是AL203，其余為Fe,Cr,Ni等金屬元素。加入金屬元素可以改善氧化鋁金屬陶瓷的導(dǎo)熱率和降低脆性，但其耐腐蝕性有所下降。這種陶瓷常用于批量較大的汽車?yán)鋮s水泵機(jī)械密封中。工業(yè)陶瓷在機(jī)械密封中使用以來，繼續(xù)被高性能的碳化硅所替代，只有耐腐蝕性能好的、純度為。三、硬金屬。烏海BIA神通博格曼機(jī)械密封104神通博格曼機(jī)械密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="烏海BIA神通博格曼機(jī)械密封,神通博格曼機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637342063313125000/1660190.png"></div><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(dòng)，而引起密封端蓋的偏斜。⑥檢查泵的軸向竄動(dòng)和徑向振動(dòng)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(dòng)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。</p><p> 確保其動(dòng)作的準(zhǔn)確性一方面要在啟動(dòng)前對保護(hù)進(jìn)行動(dòng)作試驗(yàn)，另一方面要加強(qiáng)平時(shí)的維護(hù)和檢查工作。搞好備用機(jī)組的可靠性管理，盡量減少機(jī)組運(yùn)行時(shí)對重要設(shè)備進(jìn)行檢修對凝結(jié)水泵出力不夠這一缺陷，雖在2號機(jī)啟動(dòng)前已提出，但檢修人員沒有提前檢修，從而導(dǎo)致在運(yùn)行中檢修而發(fā)生了事故。凝結(jié)水泵隔離操作凝結(jié)水泵閥門隔離嚴(yán)密時(shí)操作凝結(jié)水泵隔離時(shí)，應(yīng)先關(guān)閉出口，后關(guān)閉入口門。這樣是為了防止出口逆止門不嚴(yán)，若先關(guān)閉入口門則有可能因出口逆止門不嚴(yán)造成凝泵入口管路破裂事故。***關(guān)閉凝泵機(jī)械密封水門，是為了防止掉真空，關(guān)閉時(shí)應(yīng)確認(rèn)凝泵入口壓力逐漸變?yōu)槌杭创髿鈮?。（詳?xì)操作見操作票）凝結(jié)水泵閥門無法隔離嚴(yán)密時(shí)操作因凝結(jié)水泵入口為蝶閥，很難保證其嚴(yán)密性。在凝泵入口閥門嚴(yán)密情況下，關(guān)閉凝結(jié)水泵出口電動(dòng)門、入口電動(dòng)門、泵體及出口管路抽空氣門后則凝泵入口壓力即應(yīng)該逐漸變?yōu)槌?。此時(shí)不影響凝泵檢修相關(guān)工作。若凝結(jié)水泵入口閥門不嚴(yán)，則需要采取一些特殊措施，來保證凝結(jié)水泵安全隔離。下面就本廠某次機(jī)組運(yùn)行中清理備用凝泵入口濾網(wǎng)及處理備用凝泵出口法蘭漏水（停泵時(shí)則漏真空）進(jìn)行經(jīng)驗(yàn)反饋：凝結(jié)水泵隔離后，若凝泵入口仍為負(fù)壓狀態(tài)。FBD神通博格曼機(jī)械密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="烏海BIA神通博格曼機(jī)械密封,神通博格曼機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637342063350761718/3297953.png"></div><p> 原因四、缺水運(yùn)行造成干磨損壞。此現(xiàn)象多見于底閥式安裝形式進(jìn)口處負(fù)壓，進(jìn)水管有空氣，泵腔內(nèi)有空氣，泵開機(jī)后，機(jī)封的磨擦高速運(yùn)轉(zhuǎn)時(shí)產(chǎn)生高溫，無法得到冷卻，檢查機(jī)封，彈簧張力正常，摩擦面燒焦發(fā)黑，橡膠變硬開裂。處理辦法：排盡管道及泵腔內(nèi)空氣，更換機(jī)械密封。原因五、氣蝕。氣蝕主要產(chǎn)生于熱水泵。由于介質(zhì)是熱水，水溫過高產(chǎn)生蒸汽，管道內(nèi)的汽體進(jìn)入泵腔內(nèi)高處，這部份的汽體無法排除，從而造成缺水運(yùn)行，機(jī)封干磨失效，氣蝕裝自動(dòng)排氣閥，更換機(jī)封。原因六、裝配問題。安裝泵蓋時(shí)，可能?有裝平，造成軸與泵蓋不垂直造成動(dòng)靜平面不能吻合，開機(jī)時(shí)間不長，造成單邊磨損而滲水。也有可能在安裝動(dòng)靜環(huán)時(shí)，將橡膠件損壞，或動(dòng)靜環(huán)表面碰傷。處理辦法：拆除重裝，檢查泵蓋是否裝平。2機(jī)械密封處滲?水的第二種可能性是機(jī)械密封膠失效。機(jī)械密封膠失效的原因：橡膠件老橡膠件的老化、變形，主要是熱水泵中的化、變形。機(jī)械密封膠失效表現(xiàn)的現(xiàn)象為水溫過高，介質(zhì)溶解橡膠。從外觀上看橡膠件表面疏松、?糙，失去彈性，從而使橡膠失效。處理辦法：更換適合的橡膠材料。3機(jī)械密封處滲?水的第三種可能性是泵蓋靜環(huán)室造成。主要原因是靜環(huán)室內(nèi)孔加工尺寸誤差大。廣州神通博格曼機(jī)械密封。烏海BIA神通博格曼機(jī)械密封</p><p style="text-indent:25px">109神通博格曼機(jī)械密封。烏海BIA神通博格曼機(jī)械密封</p><p> 沖洗液的流量、壓力不夠，沖洗口位置設(shè)計(jì)不合理等原因，也同樣達(dá)不到效果。常用的措施有：1.在條件允許的情況下，盡量設(shè)計(jì)輔助沖洗系統(tǒng)。沖洗壓力一般要求高于密封腔壓力，密封腔壓力要根據(jù)每種泵的結(jié)構(gòu)形式、系統(tǒng)壓力等因素來計(jì)算。軸封腔壓力很高或者壓力幾乎接近該密封使用極限時(shí)，也可由密封腔引液體至低壓區(qū)，使軸封液體流動(dòng)以帶走摩擦熱。2.根據(jù)每種泵的操作條件，合理地配置管路和附件。如冷卻器、孔板、過濾器、閥門、流量指示器、壓力表、溫度等。實(shí)際上密封的可靠性和壽命，在很大程度上取決于密封輔助系統(tǒng)的配置，另外泵軸、軸套、泵體、密封腔體的加工精度不夠等原因的存在對機(jī)械密封的密封效果也是很不利的，在這些方面應(yīng)該做到嚴(yán)格把關(guān)。（四）振動(dòng)偏大及消除措施機(jī)械密封振動(dòng)偏大往往不是機(jī)械密封自身的原因，而是泵軸設(shè)計(jì)不合理、加工精度不夠、靠背輪的平行度偏大、徑向力大等原因，消除泵振動(dòng)措施有：泵、電機(jī)、底座、現(xiàn)場管路等輔助設(shè)備在現(xiàn)場安裝時(shí)，要嚴(yán)格把關(guān)，消除振動(dòng)源。（五）泵氣蝕的原因及改進(jìn)措施離心泵葉輪入口處是泵內(nèi)壓力小的地方，當(dāng)此處的壓力等于或低于工作溫度下被輸送液體的飽和蒸汽壓1pt時(shí)，液體就會(huì)沸騰汽化，產(chǎn)生大量氣泡。烏海BIA神通博格曼機(jī)械密封</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3184564.html</p></div></div></div></div></div><div id="x3c8erj" class="page-right twoColRt"><div id="3zgdfry" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hb2xelc" 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