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href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="04fkljk" class="twoCol"><div id="urxnp0w" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_bengtc/">泵</a>?<a href="http://www.cdcfah.com/cp/third-bengtc_bpjwp/">泵配件</a>?鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格誠(chéng)信服務(wù) 漣水創(chuàng)密機(jī)械供應(yīng)</p><div id="veqniuq" class="leftbox clearfix"><h1>鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格誠(chéng)信服務(wù) 漣水創(chuàng)密機(jī)械供應(yīng)</h1><div id="siyprcy" class="proBig"><div id="uooiuc4" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298412392578/7048929.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="1av0rfg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298412392578/7048929.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ymumtqy" 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>鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格</p><p><span>***更新：</span>2020-06-04 04:18:05</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="yulc5pj" 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(jī)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(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] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="rryqn0y" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="sgivwib" class="box"><p><p> 低溫輕烴泵用機(jī)械密封 </p> <p> 多彈簧機(jī)械密封采用靜止結(jié)構(gòu)。 </p> <p> 采取增加非補(bǔ)償環(huán)尾部長(zhǎng)度和采用副后蓋結(jié)構(gòu)等措施，增加輕烴泵機(jī)械密封的抗抽空能力。 </p> <p> 采用靜環(huán)背冷措施。 </p> <p> 對(duì)介質(zhì)易汽化的輕烴泵軸封我們?cè)鲈O(shè)背部冷卻,在軸封正常操作時(shí),可對(duì)端面溫度進(jìn)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(shí),由于端面溫度降低,使閃蒸壓力降低,對(duì)防止端面分離有積極作用。 </p> <p> 摩擦副材料的選取。 </p> <p> 對(duì)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，鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格。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，鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格，鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格,而且還可把摩擦副產(chǎn)生的摩擦熱及時(shí)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)。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298412392578/7048929.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，使周圍溫度急劇下降，造成空氣中水氣的凝結(jié)，導(dǎo)致端面及其周圍結(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)沒有軸向摩擦，端面比壓甚至可以低于下限。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247297555068359/2614045.jpg"></div><p> <p> 在液泵的正常操作中，旋轉(zhuǎn)面和靜止面之間因填料盒中的液體所產(chǎn)生的壓力而使其保持在密封狀態(tài)，在起動(dòng)和停機(jī)時(shí)，填料盒的壓力由彈簧產(chǎn)生的壓力維持(甚至可以由彈簧的壓力來代替)。 </p> <p> 大部分機(jī)械密封的設(shè)計(jì)采用較軟的材料來制作旋轉(zhuǎn)面，使其在較硬的靜止面上旋轉(zhuǎn)摩擦。多年來，**通用的組合是利用碳材料作為旋轉(zhuǎn)面，使其在陶瓷靜止面上運(yùn)行。這類材料目前仍在普遍使用，但靜止面則選用不銹鋼或更硬的材料制作，例如碳化鎢或碳化硅。 </p> <p> 不管采用什么材料，總之在接觸面之間必須保持一層液體薄膜，以起到潤(rùn)滑的作用。然而，在填料盒內(nèi)，采用彈簧負(fù)載和液體壓力相結(jié)合的方式，可以使密封面之間起到很好的密封作用。但密封壓力太高，則會(huì)影響接觸面之間形成液體薄膜，導(dǎo)致熱量增加和過早的磨損。如果密封壓力太低，接觸面之間的間隙增大，容易造成液體泄漏。 </p> <p> 密封制造廠正在不斷地努力提高接觸面的平直度，他們采用特殊的拋光板進(jìn)行研磨。然后，采用單色光源的光柵板對(duì)其檢測(cè)。從這一觀點(diǎn)出發(fā)，對(duì)這些密封接觸面必須小心處理，并嚴(yán)格按照安裝說明，保證密封面得到適當(dāng)?shù)谋Ｗo(hù)和正確就位，這一點(diǎn)是非常重要的。 </p> <p> <br /> </p> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城電動(dòng)泵密封廠家批發(fā)價(jià)格" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247295241855469/6155112.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/138738.html</p></div></div></div></div></div><div id="cpz40dh" class="page-right twoColRt"><div id="l4rnzxy" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fntahgw" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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