鹽城計(jì)量泵密封供應(yīng)商和諧共贏漣水創(chuàng)密機(jī)械供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="隨著時(shí)代的高速發(fā)展，對石油資源的需求量不斷增加，石油煉廠的生產(chǎn)任務(wù)越來越重。泵用機(jī)械在石油煉廠生產(chǎn)過程中發(fā)揮著非常重要的作用，但在其實(shí)際運(yùn)行過程中，其機(jī)械密封往往會(huì)出現(xiàn)各種問題，不僅影響機(jī)械的正常使用，還容易導(dǎo)致安全問題的發(fā)生。文章對石油煉"><meta name="keywords" content="鹽城計(jì)量泵密封供應(yīng)商,封"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" 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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="etfbnwy" 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>鹽城計(jì)量泵密封供應(yīng)商,封</p><p><span>***更新：</span>2020-10-16 01:05:31</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="zov7e73" 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="mls9rvg" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3sedpgi" class="box"><p><p> 隨著時(shí)代的高速發(fā)展，對石油資源的需求量不斷增加，石油煉廠的生產(chǎn)任務(wù)越來越重。泵用機(jī)械在石油煉廠生產(chǎn)過程中發(fā)揮著非常重要的作用，但在其實(shí)際運(yùn)行過程中，其機(jī)械密封往往會(huì)出現(xiàn)各種問題，不僅影響機(jī)械的正常使用，還容易導(dǎo)致安全問題的發(fā)生。文章對石油煉廠常用機(jī)械密封的設(shè)計(jì)改進(jìn)與應(yīng)用進(jìn)行分析，希望對中國石油煉化事業(yè)的發(fā)展起到積極的促進(jìn)作用。 </p> <p> 機(jī)械密封在流體機(jī)械中發(fā)揮著非常重要的作用，可以有效防止機(jī)械內(nèi)部的介質(zhì)流出泵外。其運(yùn)行情況，對泵用機(jī)械運(yùn)行的穩(wěn)定性有著非常直接的影響，在石油煉化生產(chǎn)過程中，發(fā)揮著非常重要的作用。各種流體機(jī)械在化工生產(chǎn)中，有著非常明顯的應(yīng)用，隨著石油煉化技術(shù)的高速發(fā)展，流體機(jī)械的應(yīng)用參數(shù)水平也在不斷提高，對機(jī)械性能要求也在不斷提高，轉(zhuǎn)軸密封的作用非常突出。我國對機(jī)械密封的研究開始較晚，從上個(gè)世紀(jì)80 年代，機(jī)械密封在石油煉化產(chǎn)業(yè)中才開始得到大規(guī)模的應(yīng)用，鹽城計(jì)量泵密封供應(yīng)商。橡塑密封件的作用使它成為**，鹽城計(jì)量泵密封供應(yīng)商、化工、石油，鹽城計(jì)量泵密封供應(yīng)商、煤炭、交通運(yùn)輸和機(jī)械制造等國民經(jīng)濟(jì)主要行業(yè)中的基礎(chǔ)部件.鹽城計(jì)量泵密封供應(yīng)商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城計(jì)量泵密封供應(yīng)商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503105126953/1175882.jpg"></div><p> 密封墊片的種類有很多，不同材料、不同形狀的墊片有不同的作用。如果選錯(cuò)了墊片，不僅不能很好的密封，還可能變?yōu)榘踩?，隨時(shí)有發(fā)生危險(xiǎn)的可能。你知道密封墊片有哪些嗎，他們有什么特點(diǎn)？ </p> <p> 工業(yè)橡膠板 </p> <p> 天然橡膠適用于水、海水、空氣、惰性氣體、堿類、鹽類水溶液等介質(zhì)，但不耐礦物油和非極性溶劑，長期使用溫度不超過90℃，低溫性能優(yōu)異，可在-60℃以上使用。 </p> <p> 丁腈橡膠適用于石油類產(chǎn)品，如石油、潤滑油、燃料油等，長期使用溫度為120℃，如在熱油中可耐150℃，低溫為-10~-20℃。 </p> <p> 氯丁橡膠適用于海水、弱酸、弱堿、鹽溶液，耐氧和臭氧老化性能優(yōu)異，耐油性次于丁腈橡膠而優(yōu)于其他通用橡膠，長期使用溫度低于90℃，比較高使用溫度不超過130℃，低溫為-30~-50℃。 </p> <p> 氟橡膠有多個(gè)品種，它們分別具有良好的耐酸、耐氧化性能以及耐油、耐溶劑性能?？梢栽趲缀跛械乃犷惤橘|(zhì)以及一些油和溶劑中使用，長期使用溫度低于200℃。 </p> <p> 橡膠板材作為法蘭墊片，多用于管道或經(jīng)常拆卸的人孔、手孔，壓力不超過1.568MPa。因在各類墊片中，橡膠墊片**軟，貼合性能好，在較小的預(yù)緊力下就能發(fā)揮密封效果。正因如此，在承受內(nèi)壓時(shí)，因墊片偏厚或硬度偏低而容易被擠出。 </p> <p> <br /> 鹽城計(jì)量泵密封供應(yīng)商機(jī)械密封的輔助沖洗系統(tǒng)是非常重要的，它可以有效的保護(hù)密封面，起到冷卻、潤滑、沖走雜物等作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城計(jì)量泵密封供應(yīng)商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247296977294922/7112794.jpg"></div><p style="text-indent:25px">液態(tài)烴介質(zhì)是一種低溫液化氣體，具有低沸點(diǎn)、低粘度、高蒸汽壓等特性。在這種工況下應(yīng)用的機(jī)械密封，會(huì)使密封材料出現(xiàn)冷脆性，大氣中的水汽會(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汽化等。尤其是當(dāng)介質(zhì)稍有泄漏，漏出的液態(tài)烴在大氣側(cè)立即汽化，帶走大量熱，機(jī)械密封環(huán)境溫度急劇下降，使用一般的密封材料，如橡膠或聚四氟乙烯普遍變脆，導(dǎo)致密封失效，泄漏增大而不可收拾。有些企業(yè)采用雙端面l機(jī)械密封，在介質(zhì)和大氣端設(shè)一隔離室，其間通以封油以緩和低溫的影響。但這種結(jié)構(gòu)復(fù)雜且需配封液系統(tǒng)。據(jù)經(jīng)驗(yàn)，使用波紋管機(jī)械密封比較好，主要表現(xiàn)在用屬波紋管和柔性石墨代并輔助密封圈，解決了密封圈材料發(fā)生冷脆而失彈及緩沖作用的問題，如DBM型、YH604/606/609型等。</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> 對介質(zhì)易汽化的輕烴泵軸封我們增設(shè)背部冷卻,在軸封正常操作時(shí),可對端面溫度進(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(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)。在機(jī)泵的實(shí)際使用過程中，一定要對機(jī)泵進(jìn)行合理使用，盡量避免對機(jī)泵進(jìn)行超負(fù)荷運(yùn)行。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城計(jì)量泵密封供應(yīng)商,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293279589844/7625641.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。軸彎曲變形時(shí)橫截面形心沿與軸線垂直方向的線位移稱為撓度，機(jī)械密封要求兩個(gè)密封端面之間受力均勻。常州管道泵密封可定制企業(yè)</p><p style="text-indent:25px">摩擦副所用的材料耐磨性差、摩擦系數(shù)大、端面比壓（包括彈簧比壓）過大等,都會(huì)縮短機(jī)械密封的使用壽命。鹽城計(jì)量泵密封供應(yīng)商</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)增加對機(jī)械密封輔助系統(tǒng)的重要作用和認(rèn)識，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。鹽城計(jì)量泵密封供應(yīng)商</p><p style="text-indent:25px">漣水創(chuàng)密機(jī)械制造有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家貿(mào)易型的公司。公司業(yè)務(wù)分為輕型密封，中型密封，重型密封，小型水泵等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造機(jī)械及行業(yè)設(shè)備良好品牌。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1569168.html</p></div></div></div></div></div><div id="vpba8lc" class="page-right 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