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</span>153_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>153-66621921</p><p><span>地址: </span>高溝鎮(zhèn)高揚(yáng)民營(yíng)經(jīng)濟(jì)產(chǎn)業(yè)園</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="jxxp555" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="xvll3px" class="box"><p><p> 離心泵口環(huán)一般指葉輪口環(huán)，是安裝在水泵葉輪和泵體之間的一個(gè)環(huán)狀金屬圈， </p> <p> <span style="font-size:12px;"> 口環(huán)，也叫耐磨環(huán)。其主要作用是防止出口端介質(zhì)倒流回進(jìn)口端介質(zhì)也就是密封作用（因此有“密封環(huán)”這一名稱(chēng)）；同時(shí)也起耐磨作用，避免葉輪和泵殼直接接觸損壞，有保護(hù)葉輪的作用（因此有“耐磨環(huán)”這一名稱(chēng)）。</span> </p> <p> <span style="font-size:12px;">離心泵口環(huán)，一般水泵的級(jí)數(shù)與口環(huán)的數(shù)量是一樣的，也就是說(shuō)一個(gè)5級(jí)的水泵，那么口環(huán)也就有5個(gè)，一個(gè)首口環(huán)，4個(gè)口環(huán)。</span> </p> <p> <span style="font-size:12px;">多級(jí)離心泵口環(huán)的作用是在葉輪與泵殼間形成狹窄、曲折的通道，來(lái)增加介質(zhì)的流動(dòng)阻力，達(dá)到減少介質(zhì)泄漏的目的。離心泵口環(huán)的設(shè)置還起到保護(hù)泵上主要零件不受磨損的作用(公眾號(hào):泵管家)，在口環(huán)磨損后，可以修復(fù)或更換新環(huán)、恢復(fù)正常裝配間隙，這樣既經(jīng)濟(jì)又便于檢修。</span> </p> <p> <span style="font-size:12px;">口環(huán)間隙大會(huì)將低泵的使用效率，經(jīng)過(guò)泵加壓的流體會(huì)過(guò)多的從泵出口區(qū)域沿葉輪與口環(huán)的間隙返回到進(jìn)口，從而降低了泵的使用效率，同時(shí)由于流量的加大，會(huì)使口環(huán)過(guò)早的被磨損。口環(huán)間隙過(guò)大，會(huì)導(dǎo)致泵的流量降低，嚴(yán)重時(shí)不上量，淮安葉輪泵密封經(jīng)銷(xiāo)廠家。 </span> </p> <p> <span style="font-size:12px;">離心泵口環(huán)的完好性及它與葉輪問(wèn)徑向間隙含，在拆卸泵時(shí)應(yīng)首先檢查，淮安葉輪泵密封經(jīng)銷(xiāo)廠家。如離心泵口環(huán)已有溝槽等缺損或已破裂或間隙艿超過(guò)表5中所規(guī)定的數(shù)值時(shí)，淮安葉輪泵密封經(jīng)銷(xiāo)廠家，應(yīng)更換新口環(huán)或?qū)⒃诃h(huán)補(bǔ)焊修復(fù)。</span> </p> <p> <br /> </p> <p> <br /> 因端面密封載荷的存在，在密封腔缺乏液體時(shí)啟動(dòng)泵而發(fā)生干摩擦?；窗踩~輪泵密封經(jīng)銷(xiāo)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安葉輪泵密封經(jīng)銷(xiāo)廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503162724609/640384.jpg"></div><p> 低溫下的機(jī)械密封 </p> <p> 在煉油化工裝置中，低溫輸送的介質(zhì)一般都具有豁度小、潤(rùn)滑性差、容易氣化的特點(diǎn)，而且介質(zhì)在氣化時(shí)大量吸熱，使周?chē)鷾囟燃眲∠陆?，造成空氣中水氣的凝結(jié)，導(dǎo)致端面及其周?chē)Y(jié)冰，使端面貼合不嚴(yán)引起泄漏。同時(shí)，因潤(rùn)滑性差，端面摩擦產(chǎn)生的熱量較多，若不能及時(shí)轉(zhuǎn)移，必然會(huì)加劇端面處的氣化，造成惡性循環(huán)，加速密封面的早期失效。另外，低溫密封的輔助密封圈在低溫下發(fā)硬失彈也容易導(dǎo)致泄漏。 </p> <p> <span style="font-size:12px;">對(duì)低溫密封，除了選擇合適的輔助密封圈材質(zhì)外，還要注意以下幾點(diǎn)。</span> </p> <p> 改進(jìn)密封結(jié)構(gòu)及正確選擇摩擦副材料。實(shí)踐證明，在靜環(huán)表面開(kāi)圓弧形凹槽可形成流體動(dòng)力密封，增加流體膜承載能力，改善端面潤(rùn)滑條件，有效延長(zhǎng)機(jī)封工作壽命。在端面配對(duì)方面，碳化鎢一M106K石墨組對(duì)（即動(dòng)、靜環(huán)材料）一般要優(yōu)于其他材料，因?yàn)槠錆?rùn)滑性好，摩擦系數(shù)低，導(dǎo)熱性也比較好。 </p> <p> 選擇合適的端面比壓。低溫密封由于端面潤(rùn)滑性差，容易發(fā)生氣化、結(jié)冰，所以在保證密封可靠的前提下，端面比壓可適當(dāng)減小。一般機(jī)械密封比壓值推薦為0.29-0.59MPa，對(duì)低溫密封可取其下限。對(duì)金屬波紋管機(jī)械密封，由于動(dòng)環(huán)沒(méi)有軸向摩擦，端面比壓甚至可以低于下限。 </p> <p> <br /> 淮安葉輪泵密封經(jīng)銷(xiāo)廠家密封常用名稱(chēng)：密封圈、盤(pán)根、機(jī)械密封、油封、水封、盤(pán)根、密封墊板、密封膠、軟填料、液壓、氣動(dòng)密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安葉輪泵密封經(jīng)銷(xiāo)廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247295241855469/6155112.jpg"></div><p> 液態(tài)烴介質(zhì)是一種低溫液化氣體,具有低沸點(diǎn)、低黏度、高蒸氣壓等特性。在這種工況下使用的機(jī)械密封，密封件材料會(huì)出現(xiàn)冷脆性，大氣中的水氣會(huì)在密封裝置的大氣側(cè)面上凍結(jié)，摩擦副端面液膜容易氣化等。尤其是當(dāng)介質(zhì)稍有泄漏，漏出的液態(tài)烴在大氣側(cè)立即氣化，帶走大量的熱，機(jī)械密封環(huán)境溫度急劇下降，一般的密封材料，如橡膠或聚四氟乙烯普遍變脆，導(dǎo)致密封失效，泄漏增大。 </p> <p> <br /> </p> <p> 根據(jù)實(shí)際經(jīng)驗(yàn),使用金屬波紋管機(jī)械密封比較好,主要表現(xiàn)在用金屬波紋管和柔性石墨代替輔助密封圈,解決了密封圈材料發(fā)生冷脆而失彈及緩沖作用的問(wèn)題,如用DBM型、YH604/606/609型等。在液態(tài)烴泵上使用波紋管機(jī)械密封時(shí)應(yīng)注意: </p> <p> 金屬波紋管材料選用耐低溫、韌性好的Hastelloy-C(耐熱鎳基金),AM350,Carpenter20 等; </p> <p> 合理的結(jié)構(gòu)設(shè)計(jì)能保證機(jī)械密封在高速運(yùn)轉(zhuǎn)的情況下不破壞密封端面和波紋管組件; </p> <p> 合理的端面接觸比壓能保證機(jī)械密封的密封性能和避免過(guò)早的失效; </p> <p> 合理的摩擦副材料能保證機(jī)械密封在低溫條件下正常的摩擦性能和密封性能, 避免因磨損過(guò)快而過(guò)早的失效; </p><p> 隨著工業(yè)技術(shù)和密封技術(shù)的發(fā)展，泵在電力、化工、石油等多個(gè)行業(yè)大量使用，對(duì)泵密封的密封性和可靠性要求更高、更嚴(yán)?；け玫拿芊鈱?duì)整個(gè)設(shè)備運(yùn)轉(zhuǎn)來(lái)說(shuō)起著重要的作用，化工泵的密封系統(tǒng)泄漏將會(huì)嚴(yán)重影響到設(shè)備的正常運(yùn)轉(zhuǎn)。尤其是高溫高壓泵的發(fā)展,更使得對(duì)泵的密封更加嚴(yán)格?；け眯孤c(diǎn) </p> <p> 泵用機(jī)械密封種類(lèi)繁多，型號(hào)各異，但泄漏點(diǎn)主要有五處： </p> <p> 軸套與軸間的密封動(dòng)環(huán)與軸套間的密封動(dòng)、靜環(huán)間密封對(duì)靜環(huán)與靜環(huán)座間的密封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(qiáng)密封面的冷卻 </p> <p> 解決方法：增加旁路沖洗管線(xiàn)（如果沒(méi)有的話(huà)）擴(kuò)大旁路沖洗管線(xiàn)和/或壓蓋上的開(kāi)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(guò)程中，輔助密封被劃傷O形圈老化，由于壓縮形變輔助密封變硬變脆由于化學(xué)作用輔助密封變軟變粘。 </p> <p> 現(xiàn)。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 操作中，因抽空、氣蝕、憋壓等異?，F(xiàn)象，引起較大的軸向力，使動(dòng)、靜環(huán)接觸面分離。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安葉輪泵密封經(jīng)銷(xiāo)廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298179248047/5187331.jpg"></div><p> 泵，一種用以增加液體或氣體的壓力，使之輸送流動(dòng)的機(jī)械設(shè)備。泵的種類(lèi)很多，有離心泵、排污泵、柱塞泵、真空泵、蠕動(dòng)泵、自吸泵等等，種類(lèi)繁多。特性各不相同，應(yīng)用領(lǐng)域比較廣，應(yīng)用于農(nóng)田灌溉、排水以及工礦企業(yè)與城鎮(zhèn)的給水、排水等。那么對(duì)于各種泵的工作原理你是否了解呢？讓我們一起了解一些其中幾種泵的工作原理。 </p> <p> 柱塞泵是液壓系統(tǒng)的一個(gè)重要裝置。它依靠柱塞在缸體中往復(fù)運(yùn)動(dòng)，使密封工作容腔的容積發(fā)生變化來(lái)實(shí)現(xiàn)吸油、壓油。柱塞泵具有結(jié)構(gòu)緊湊、效率高、額定壓力高和流量調(diào)節(jié)方便等優(yōu)點(diǎn)，被***應(yīng)用于高壓、大流量和流量需要調(diào)節(jié)的場(chǎng)合，諸如液壓機(jī)、工程機(jī)械。 </p> <p> 柱塞泵是往復(fù)泵的一種，屬于體積泵，其柱塞靠泵軸的偏心轉(zhuǎn)動(dòng)驅(qū)動(dòng)，往復(fù)運(yùn)動(dòng)，其吸入和排出閥都是單向閥。當(dāng)柱塞外拉時(shí)，工作室內(nèi)壓力降低，出口閥關(guān)閉，低于進(jìn)口壓力時(shí)，進(jìn)口閥打開(kāi)，液體進(jìn)入；柱塞內(nèi)推時(shí)，工作室壓力升高，進(jìn)口閥關(guān)閉，高于出口壓力時(shí)，出口閥打開(kāi)，液體排出。當(dāng)傳動(dòng)軸帶動(dòng)缸體旋轉(zhuǎn)時(shí)，斜盤(pán)將柱塞從缸體中拉出或推回，完成吸排油過(guò)程。柱塞與缸孔組成的工作容腔中的油液通過(guò)配油盤(pán)分別與泵的吸、排油腔相通。變量機(jī)構(gòu)用來(lái)改變斜盤(pán)的傾角，通過(guò)調(diào)節(jié)斜盤(pán)的傾角可改變泵的排量。泵中常用的是橡膠O型圈。浙江水泵密封廠家推薦</p><p style="text-indent:25px">在密封面處由于干摩擦、冷卻水突然中斷，雜質(zhì)進(jìn)入密封面、抽空等情況下，都會(huì)導(dǎo)致環(huán)面出現(xiàn)徑向裂紋。淮安葉輪泵密封經(jīng)銷(xiāo)廠家</p><p> 泵用機(jī)械密封種類(lèi)繁多，型號(hào)各異，但泄漏點(diǎn)主要有五處： </p> <p> 軸套與軸間的密封； </p> <p> 動(dòng)環(huán)與軸套間的密封； </p> <p> 動(dòng)、靜環(huán)間密封； </p> <p> 對(duì)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(qiáng)密封面的冷卻 </p> <p> 解決方法:增加旁路沖洗管線(xiàn)（如果沒(méi)有的話(huà)）擴(kuò)大旁路沖洗管線(xiàn)和/或壓蓋上的開(kāi)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(guò)程中，輔助密封被劃傷O形圈老化，由于壓縮形變輔助密封變硬變脆由于化學(xué)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(dòng)機(jī)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(lèi)型改進(jìn)沖洗冷卻管線(xiàn),檢查是否出現(xiàn)壓蓋螺栓扭矩過(guò)大導(dǎo)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(wú)其他固體顆粒，如需要時(shí)對(duì)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(guò)程中，密封發(fā)出尖嘯聲 </p> <p> 可能的原因:密封處的潤(rùn)滑液量不足 </p> <p> 解決方法:增加旁路沖洗管線(xiàn)（如果沒(méi)有的話(huà)）擴(kuò)大旁路沖洗管線(xiàn)和/或壓蓋上的開(kāi)孔。淮安葉輪泵密封經(jīng)銷(xiāo)廠家</p><p> 淮安市漣水創(chuàng)密機(jī)械制造有限公司是一家專(zhuān)業(yè)從事機(jī)械密封產(chǎn)品的開(kāi)發(fā)、制造、銷(xiāo)售與一體化的企業(yè)。企業(yè)擁有國(guó)內(nèi)前列的工藝、專(zhuān)業(yè)的技術(shù)人員，先進(jìn)的生產(chǎn)設(shè)備和檢測(cè)手段。堅(jiān)持以科技為導(dǎo)向，建立了嚴(yán)格的產(chǎn)品質(zhì)量和管理保證體系，并按照國(guó)家和國(guó)際的相關(guān)標(biāo)準(zhǔn)以及用戶(hù)的特殊需求，生產(chǎn)質(zhì)量的機(jī)械密封產(chǎn)品，滿(mǎn)足了廣大用戶(hù)的需求。同時(shí)，企業(yè)致力于為用戶(hù)提供相關(guān)的技術(shù)咨詢(xún)，解決用戶(hù)使用中的疑難和關(guān)鍵，體現(xiàn)了企業(yè)的價(jià)值。 </p> <p> <br /> </p> <p> 企業(yè)生產(chǎn)的機(jī)械密封產(chǎn)品包括：輕型密封、中型密封和重型密封。產(chǎn)品品種齊全，被廣泛應(yīng)用于石油、化工、電力、造紙，食品等行業(yè)。由于產(chǎn)品密封性能好，經(jīng)久耐用，深受廣發(fā)用戶(hù)好評(píng)。 </p> <p> <span style="font-size:12px;"> 企業(yè)始終以用戶(hù)至上、***為起點(diǎn)，緊扣時(shí)代脈搏，抓發(fā)展機(jī)遇，已被諸多用戶(hù)認(rèn)定為質(zhì)量產(chǎn)品供應(yīng)商，是值得依賴(lài)的合作伙伴。企業(yè)將永遠(yuǎn)把質(zhì)量的產(chǎn)品、誠(chéng)信的服務(wù)奉獻(xiàn)給廣大用戶(hù)，熱忱歡迎新老客戶(hù)惠顧。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2781274.html</p></div></div></div></div></div><div id="31jld3r" class="page-right twoColRt"><div id="3h3br5x" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hjdhzxp" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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