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id="bug8gq4" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293743222656/8640266.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dheyfwv" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293743222656/8640266.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="etvhj8z" 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>南通葉輪泵密封供貨商,封</p><p><span>***更新：</span>2020-11-08 08:14:55</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="nhevco4" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">漣水創(chuàng)密機械制造有限公司</a></p><p><span>聯(lián)系人：</span>袁經(jīng)理</p><p><span>郵箱: </span>lscmjx@163.com</p><p><span>電話: </span>15250888877</p><p><span>傳真: </span>153_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>153-66621921</p><p><span>地址: </span>高溝鎮(zhèn)高揚民營經(jīng)濟產(chǎn)業(yè)園</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="mvcjl33" class="page-proshow02"><p class="title">詳細說明</p><div id="3iz7ugk" class="box"><p><p> 泵用機械密封種類繁多，型號各異，但泄漏點主要有五處： </p> <p> 軸套與軸間的密封； </p> <p> 動環(huán)與軸套間的密封； </p> <p> 動、靜環(huán)間密封； </p> <p> 對靜環(huán)與靜環(huán)座間的密封； </p> <p> 密封端蓋與泵體間的密封。 </p> <p> 現(xiàn)象:操作中密封發(fā)出爆裂聲（端面爆裂聲） </p> <p> 可能的原因:密封液在密封界面汽化加強密封面的冷卻 </p> <p> 解決方法:增加旁路沖洗管線（如果沒有的話）擴大旁路沖洗管線和/或壓蓋上的開孔。 </p> <p> 現(xiàn)象:密封連續(xù)滴漏 </p> <p> 可能的原因:表面不平;石墨密封面起泡;密封面產(chǎn)生熱變形 </p> <p> 解決方法:在安裝過程中，輔助密封被劃傷O形圈老化，南通葉輪泵密封供貨商，由于壓縮形變輔助密封變硬變脆由于化學作用輔助密封變軟變粘 </p> <p> 現(xiàn)象:彈簧失效 </p> <p> 可能的原因:由于腐蝕作用，金屬附件損壞，傳動機構(gòu)被腐蝕 </p> <p> 解決方法:檢查不正確的安裝尺寸,檢查是否采用了不合適的材料和密封類型改進沖洗冷卻管線,檢查是否出現(xiàn)壓蓋螺栓扭矩過大導致壓蓋變形,檢查壓蓋墊片的比壓是否合適，檢查密封面間有無其他固體顆粒，如需要時對密封面重新拋光。檢查密封面處的裂紋，更換主、配合密封環(huán)。 </p> <p> 現(xiàn)象:操作過程中，密封發(fā)出尖嘯聲 </p> <p> 可能的原因:密封處的潤滑液量不足 </p> <p> 解決方法:增加旁路沖洗管線（如果沒有的話）擴大旁路沖洗管線和/或壓蓋上的開孔，南通葉輪泵密封供貨商，南通葉輪泵密封供貨商。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。南通葉輪泵密封供貨商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通葉輪泵密封供貨商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293743222656/8640266.jpg"></div><p> 結(jié)合設計經(jīng)驗以及對API 682標準的研究，對泵用機械密封的選型要點進行了分析，主要包括密封類型、密封形式、布置方式、沖洗方案等。進而對煉油裝置中的高溫熱油泵、高溫熱水泵以及強酸強堿泵機械密封及輔助系統(tǒng)的選型提出了合理化建議，對API 682中的PLAN53B和PLAN23進行了改進，使之更好地為機械密封服務，有利于機械密封長期穩(wěn)定運行。 </p> <p> 由于機械密封具有密封性能好、工作可靠、泄漏量小、功率消耗少等特點，因而在國內(nèi)外煉油化工生產(chǎn)的旋轉(zhuǎn)設備中得到了較大規(guī)模的應用，已經(jīng)成為泵、壓縮機、反應釜、攪拌器等工藝設備能否正常運轉(zhuǎn)的關(guān)鍵部件。 </p> <p> 隨著環(huán)境保護和人類健康要求的提高，煉油裝置中對泵用機械密封的要求也在不斷提高。據(jù)統(tǒng)計，煉油裝置中機泵故障的40% 以上是由于機械密封發(fā)生泄漏而引起的。造成這一現(xiàn)象的原因，一是作為機泵中的動密封其本身所處的工作條件、起的作用所決定；二是許多國內(nèi)設計單位以及工程公司認為機械密封及系統(tǒng)的選用是泵廠和密封廠的責任，往往對密封的類型、布置方式、沖洗方案了解不深，難以制定機械密封的選配方案，造成部分密封選型不當。 </p> <p> <br /> 常州計量泵密封生產(chǎn)企業(yè)軸封腔壓力很高或者壓力接近該密封使用比較高極限時，由密封腔引液體至低壓區(qū)，使軸封液體流動以帶走摩擦熱。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通葉輪泵密封供貨商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247286448720703/8635806.jpg"></div><p> 防止工作介質(zhì)從泵內(nèi)泄漏出來或者防止外界雜質(zhì)或空氣侵入到泵內(nèi)部的裝置或措施稱為密封，被密封的介質(zhì)一般為液體、氣體或粉塵。 </p> <p> 造成泄漏的原因主要有兩個方面：一是密封面上有間隙。二是密封部位兩側(cè)存在壓力差，消除或減小任何一個因素都可以阻止或減小泄漏，達到密封的目的。泵的設計壓力和使用壓力是客觀存在不能減小，所以泵的密封該解決的是消除或減小密封面之間的間隙。這種間隙包括密封面之間的間隙和密封裝置本生內(nèi)部的間隙。 </p> <p> <br /> </p><p> 油封的裝配，無論油封的安裝部分設計和油封的選擇多么適宜，如果組裝的粗糙，也不能充分發(fā)揮油封預定的功能。 </p> <p> <span style="font-size:12px;">油封安裝時,外表面應涂上適當?shù)臐櫥瑒?，唇口應涂上適合的清潔潤滑脂，帶有防塵唇的油封，應在主付唇間填滿適合的清潔潤滑脂，再進行裝配.把油封的密封唇口端朝向密封介質(zhì)一側(cè),切忌反向裝配.油封裝入座孔時,應采用**工具推入,防止位置偏斜.油封唇緣通過的螺紋,鍵槽,花鍵等處應采取各種措施來防止唇緣損傷,并用**工具裝配.油封應水平放入座孔，并均勻加壓，請勿傾斜強制推進。</span> </p> <p> <br /> 如果密封無法直接裝入到預定的位置，就需要對相關(guān)尺寸進行調(diào)整，避免硬裝現(xiàn)象的發(fā)生。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通葉輪泵密封供貨商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298412392578/7048929.jpg"></div><p> 離心泵的機械密封使用與潤滑保養(yǎng) </p> <p> <p> 在液體介質(zhì)中工作的機械密封，一般均依靠液體介質(zhì)在動、靜環(huán)摩擦面間所形成的液膜進行潤滑。因此，維持摩擦面間的液膜是機械密封穩(wěn)定運轉(zhuǎn)、延長使用壽命所必不可少的。 </p> <p> 強化潤滑的結(jié)構(gòu) </p> <p> 靜壓潤滑： </p> <p> 所謂靜壓潤滑是將有壓力的潤滑液體直接引入摩擦面以起到潤滑的作用。用此有壓力的潤滑液與機械內(nèi)的流體壓力相對抗，此種形式通常也稱為流體靜壓力密封。引入的潤滑液體由單獨的液源供給，如液壓泵等。只要條件允許，應盡可能把氣體介質(zhì)條件轉(zhuǎn)換為液體介質(zhì)條件，這樣既便于潤滑又便于密封。氣體介質(zhì)的機械密封應采取措施建立氣膜潤滑，如采用氣體靜壓受控膜機械密封或固體潤滑，即選用自潤滑材料作動環(huán)或靜環(huán)。 </p> <p> 端面偏心： </p> <p> 一般機械密封，動環(huán)的中心、靜環(huán)的中心和軸的中心線都在一條直線上，偏心尺寸不能過大，特別是對于高壓，偏心會使端面所受的壓力不均勻，而造成磨損不均勻。對于高轉(zhuǎn)速密封，不宜用動環(huán)作為偏心環(huán)，否則由于離心力的平衡會使機器發(fā)生振動。如果將動環(huán)或靜環(huán)中的某一個環(huán)的端面中心做成與軸的中心線偏移部分距離，便能使環(huán)在旋轉(zhuǎn)時不斷帶入潤滑液至滑動面間起潤滑作用。 </p> <p> <br /> </p> 軸彎曲變形時橫截面形心沿與軸線垂直方向的線位移稱為撓度，機械密封要求兩個密封端面之間受力均勻。南通葉輪泵密封供貨商</p><p style="text-indent:25px">在實際安裝過程中，應該做好對裝配圖的核對工作，并檢各種零件表面是否出現(xiàn)了劃痕、缺點等情況。南通葉輪泵密封供貨商</p><p> 低溫輕烴泵用機械密封 </p> <p> 多彈簧機械密封采用靜止結(jié)構(gòu)。 </p> <p> 采取增加非補償環(huán)尾部長度和采用副后蓋結(jié)構(gòu)等措施，增加輕烴泵機械密封的抗抽空能力。 </p> <p> 采用靜環(huán)背冷措施。 </p> <p> 對介質(zhì)易汽化的輕烴泵軸封我們增設背部冷卻,在軸封正常操作時,可對端面溫度進行調(diào)節(jié),使相變半徑靠近內(nèi)徑,增大液膜比例。在泵抽空時,由于端面溫度降低,使閃蒸壓力降低,對防止端面分離有積極作用。 </p> <p> 摩擦副材料的選取。 </p> <p> 對摩擦副材料的選取我們采用“SiC-C”結(jié)構(gòu)。輔助密封材料選擇耐低溫的硅橡膠材料。 </p> <p> 采用自沖洗措施。 </p> <p> 通過沖洗來提高密封腔壓力以防止抽空造成的密封干摩擦。自沖洗措施不僅可保證密封腔內(nèi)有較高的介質(zhì)壓力,避免介質(zhì)在密封腔內(nèi)汽化或氣體積聚,而且還可把摩擦副產(chǎn)生的摩擦熱及時帶走,有效控制密封端面溫升,增大液相面積,改善摩擦狀態(tài)。南通葉輪泵密封供貨商</p><p style="text-indent:25px">漣水創(chuàng)密機械制造有限公司位于江蘇省淮安市漣水縣高溝鎮(zhèn)高揚民營經(jīng)濟產(chǎn)業(yè)園，擁有一支專業(yè)的技術(shù)團隊。創(chuàng)密機械制造是漣水創(chuàng)密機械制造有限公司的主營品牌，是專業(yè)的漣水創(chuàng)密機械制造有限公司產(chǎn)品包括:輕型密封、中型密封、重型密封，廣泛應用于石油、化工、電力、造紙，食品，機械密封件來料加工（塑料機械密封件除外）、銷售；機械配件、汽車配件銷售；自營和代理各類商品及技術(shù)的進出口業(yè)務，公司，擁有自己**的技術(shù)體系。我公司擁有強大的技術(shù)實力，多年來一直專注于漣水創(chuàng)密機械制造有限公司產(chǎn)品包括:輕型密封、中型密封、重型密封，廣泛應用于石油、化工、電力、造紙，食品，機械密封件來料加工（塑料機械密封件除外）、銷售；機械配件、汽車配件銷售；自營和代理各類商品及技術(shù)的進出口業(yè)務，的發(fā)展和創(chuàng)新，打造高指標產(chǎn)品和服務。自公司成立以來，一直秉承“以質(zhì)量求生存，以信譽求發(fā)展”的經(jīng)營理念，始終堅持以客戶的需求和滿意為重點，為客戶提供良好的輕型密封，中型密封，重型密封，小型水泵，從而使公司不斷發(fā)展壯大。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1901519.html</p></div></div></div></div></div><div id="hg873am" class="page-right twoColRt"><div id="7riardc" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="aq3zlcj" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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