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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zi7nc3m" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yrdahoq" 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>江蘇化工泵密封源頭直供廠家,封</p><p><span>***更新：</span>2021-02-03 03:07:26</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="sm738n2" 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="bac89b4" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3hdlnur" class="box"><p><p> 正確選擇機(jī)械密封是防止液泵泄漏關(guān)鍵 </p> <p> <br /> </p> <p> 100多年來，人們采用填料一類的多種密封材料，使液體從液泵殼體沿著主軸的向外泄漏量不斷減少。盡管現(xiàn)代工藝流程中采用的液泵，仍然較大程度地沿用**古老的密封設(shè)計(jì)——填料盒，因?yàn)槠淦鸩劫M(fèi)用低，而且又為工廠的工作人員所熟悉。 </p> <p> 然而，由于環(huán)境問題的關(guān)系，采用填料密封的方法已逐漸不能被人們所接受，特別是針對(duì)現(xiàn)代工藝流程中比較普遍的、腐蝕性較強(qiáng)的液體而言。因此，江蘇化工泵密封源頭直供廠家，在實(shí)際應(yīng)用中，以機(jī)械密封代替填料密封的情況越來越多，江蘇化工泵密封源頭直供廠家，江蘇化工泵密封源頭直供廠家。 </p> <p> <br /> 機(jī)械密封是依靠彈性元件對(duì)動(dòng)、靜環(huán)斷面的預(yù)緊力來對(duì)軸向端面進(jìn)行密封的，又稱為端面密封。江蘇化工泵密封源頭直供廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇化工泵密封源頭直供廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg"></div><p> </p> <p> 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，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(zhǎng)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。南通化工泵密封廠家推薦在使用單彈簧的機(jī)械密封時(shí)，忽略彈簧的旋轉(zhuǎn)方向與泵轉(zhuǎn)子轉(zhuǎn)動(dòng)方向的正確組合也時(shí)有發(fā)生。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇化工泵密封源頭直供廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293921376953/5749071.jpg"></div><p> 油封的裝配，無論油封的安裝部分設(shè)計(jì)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(yù)定的功能。 </p> <p> <span style="font-size:12px;">油封安裝時(shí),外表面應(yīng)涂上適當(dāng)?shù)臐?rùn)滑劑，唇口應(yīng)涂上適合的清潔潤(rùn)滑脂，帶有防塵唇的油封，應(yīng)在主付唇間填滿適合的清潔潤(rùn)滑脂，再進(jìn)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(shí),應(yīng)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(yīng)采取各種措施來防止唇緣損傷,并用**工具裝配.油封應(yīng)水平放入座孔，并均勻加壓，請(qǐng)勿傾斜強(qiáng)制推進(jìn)。</span> </p> <p> <br /> </p><p> 在煤制油化工裝置中，存在許多有害、易燃、易爆介質(zhì)，如甲醇、乙烯、硫化氫一氧化碳、輕烴等。機(jī)泵輸送此類介質(zhì)對(duì)密封要求較高，按照現(xiàn)代的管理要求，不允許泄露。 </p> <p> 目前，使用技術(shù)一般有三類，采用無泄漏泵如屏蔽泵、磁力泵、隔膜泵等，對(duì)于必須使用離心泵時(shí)，采用雙重機(jī)械密封或干氣密封。基本上大部分適用雙封的場(chǎng)合都可以使用干氣密封，在技術(shù)上來講都是可行的。 </p> <p> 那么雙重密封與干氣密封，哪個(gè)更好，常常困擾許多使用者。本文以神華某煤化工項(xiàng)目?jī)艋b置煤化工凈化裝置主洗泵為例，對(duì)雙重密封和干氣密封進(jìn)行一下簡(jiǎn)單的對(duì)比，希望能為更多在此領(lǐng)域的用戶提供選擇的參考。 </p> <p> <br /> 軸封腔壓力很高或者壓力接近該密封使用比較高極限時(shí)，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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇化工泵密封源頭直供廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247286448720703/8635806.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 /> 機(jī)械密封所能承受的壓力是有限度的，由于測(cè)算不準(zhǔn)，造成密封腔內(nèi)的壓力超過機(jī)械密封承受的壓力而產(chǎn)生泄漏。南通化工泵密封廠家推薦</p><p style="text-indent:25px">機(jī)械密封的正常運(yùn)行必須具備以下條件：泵軸的竄量不能太大。江蘇化工泵密封源頭直供廠家</p><p> 在分析泵用機(jī)械密封泄漏時(shí)，不僅要考慮機(jī)械密封的內(nèi)因，而且要考慮機(jī)械密封的外因。在實(shí)際工作中要注意以下幾個(gè)問題： </p> <p> 使用正規(guī)廠家生產(chǎn)的泵，因?yàn)檎?guī)廠家生產(chǎn)的泵完全按照泵設(shè)計(jì)標(biāo)準(zhǔn)來制造的，在使用材料上不會(huì)偷工減料，有一定的保質(zhì)期。 </p> <p> 維修工應(yīng)增加對(duì)機(jī)械密封輔助系統(tǒng)的重要作用和認(rèn)識(shí)，盡可能配備完善的機(jī)械密封輔助系統(tǒng)，以提高密封效果。 </p> <p> 在分析機(jī)械密封泄漏的原因時(shí)，要充分考慮到泵的其它零部件對(duì)機(jī)械密封運(yùn)行的影響，采取措施不斷提高機(jī)械密封的效果。江蘇化工泵密封源頭直供廠家</p><p> 淮安市漣水創(chuàng)密機(jī)械制造有限公司是一家專業(yè)從事機(jī)械密封產(chǎn)品的開發(fā)、制造、銷售與一體化的企業(yè)。企業(yè)擁有國(guó)內(nèi)前列的工藝、專業(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)以及用戶的特殊需求，生產(chǎn)質(zhì)量的機(jī)械密封產(chǎn)品，滿足了廣大用戶的需求。同時(shí)，企業(yè)致力于為用戶提供相關(guān)的技術(shù)咨詢，解決用戶使用中的疑難和關(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)用戶好評(píng)。 </p> <p> <span style="font-size:12px;"> 企業(yè)始終以用戶至上、***為起點(diǎn)，緊扣時(shí)代脈搏，抓發(fā)展機(jī)遇，已被諸多用戶認(rèn)定為質(zhì)量產(chǎn)品供應(yīng)商，是值得依賴的合作伙伴。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，熱忱歡迎新老客戶惠顧。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3133290.html</p></div></div></div></div></div><div id="ga2ctam" class="page-right twoColRt"><div id="3c2dpm7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="i9ivi4z" 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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