南通化工泵密封可定制企業(yè) 貼心服務(wù) 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="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，南通化工泵密封可定制企業(yè)，導(dǎo)致密封端面間液膜氣化，南通化工泵密封可定制企業(yè)，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"><meta name="keywords" content="南通化工泵密封可定制企業(yè),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" /> <meta 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發(fā)信息做推廣就找產(chǎn)品網(wǎng)<br />企業(yè)電商信息綜合服務(wù)平臺(tái) </span><div id="qliofwq" class="searchbox"><div id="yu82084" class="searchLt"><div id="v24vqzp" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="t2nyzq8" class="clearfix searchWrap"><div id="83vrnuq" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="ucbwy34" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = 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id="2sg7lhd" 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="tbcjpvx" 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="orn7g37" 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>南通化工泵密封可定制企業(yè),封</p><p><span>***更新：</span>2020-10-21 04:16:38</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="fok2pop" 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="fyofmne" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="svsj82o" class="box"><p><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，南通化工泵密封可定制企業(yè)，導(dǎo)致密封端面間液膜氣化，南通化工泵密封可定制企業(yè)，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，南通化工泵密封可定制企業(yè)，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。機(jī)械密封的平衡程度β也影響著密封的磨損。一般情況下，平衡程度β=75%左右**適宜。南通化工泵密封可定制企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通化工泵密封可定制企業(yè),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293743222656/8640266.jpg"></div><p> 螺紋密封 </p> <p> 螺紋密封在泵上一般有兩種形式，一種是螺紋聯(lián)接墊片密封，一種是螺紋加填充濟(jì)密封，二者皆用于小直徑螺紋連接的密封場合。螺紋聯(lián)接墊片密封的密封件是墊片，而螺紋只起提供壓緊力的作用。密封的效果除了墊片的本身性能外。密封面的粗糙度以及與螺紋孔的相對(duì)幾何位置精度對(duì)密封效果影響也很大。于由密封墊片在擰緊螺紋時(shí)不僅承受壓緊力，還承受扭矩，使墊片產(chǎn)生變形甚至損壞，因此，當(dāng)墊片為非金屬時(shí)，一般只適用于壓力不高的場合，如果墊片為金屬則適用壓力可達(dá)30Mpa以上。 </p> <p> 泵上經(jīng)常使用的絲堵，則是另一種螺紋密封形式。由于考慮到絲堵制造的經(jīng)濟(jì)性，一般單靠螺紋的配合不能起到密封作用，往往用生膠帶，密封膠等填充物填充螺紋的密封間隙。其承壓能力取決于螺紋的制造精度和材質(zhì)，與絲堵和螺紋孔的配合形式?jīng)]有關(guān)系。螺紋孔與絲堵無論采用"錐對(duì)錐"還是"柱對(duì)錐"，密封效果相同，只是使用地域不同而已。我國目前兩種形式同等采用。影響密封效果的常見原因是在加工螺紋底孔時(shí)尺寸偏大，使螺紋牙形變短，牙頂變寬，造成密封面減小，當(dāng)密封壓力升高后產(chǎn)生泄漏，甚至將絲堵壓出。鹽城清水密封廠家推薦機(jī)械密封的工作溫度不能超過其規(guī)定值。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通化工泵密封可定制企業(yè),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293635341797/9903144.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 /> </p><p> 汽、柴油泵用機(jī)械密封 </p> <p> 多彈簧機(jī)械密封靜止結(jié)構(gòu) </p> <p> 該類泵的機(jī)械密封采用靜止結(jié)構(gòu)（溫度高于200℃泵采用波紋管結(jié)構(gòu)）。一是避免由于高速攪拌產(chǎn)生的熱量；二是防止彈簧傳遞扭矩。 </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“WC-C”結(jié)構(gòu)。在選擇輔助密封材料時(shí)要考慮以下主要因素： </p> <p> 良好彈性，壓縮長久變形?。?</p> <p> 耐高溫，在高溫下不粘著； </p> <p> 與介質(zhì)相容，不易產(chǎn)生溶脹、硬化等； </p> <p> 摩擦系數(shù)小，有良好的機(jī)械性能。 </p> <p> 同過比較，我們選擇了耐溫較高的氟橡膠（溫度范圍-20℃-200℃）。 </p> <p> 輔助密封措施 </p> <p> 輕油泵機(jī)械密封輔助措施我們采用了密封腔夾套冷卻、無折流板急冷。 </p> <p> 如果密封無法直接裝入到預(yù)定的位置，就需要對(duì)相關(guān)尺寸進(jìn)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="南通化工泵密封可定制企業(yè),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247286448720703/8635806.jpg"></div><p> 泵用機(jī)械密封選型要點(diǎn) </p> <p> 美國石油協(xié)會(huì)API 682(Pumps-Shaft Sealing Systems for Centrifugal and Rotary Pumps)標(biāo)準(zhǔn)中對(duì)機(jī)械密封的類別(Categories)、類型(Types)、布置方式(Arrangements)、沖洗方案(Flush plans)等進(jìn)行了分類，在工程應(yīng)用中機(jī)械密封的選型也應(yīng)注重以上要點(diǎn)進(jìn)行分析。 </p> <p> 另外，機(jī)械密封的 pV 值是選擇、使用和設(shè)計(jì)機(jī)械密封的重要參數(shù)，功耗、磨損與溫升都與該值有關(guān)。pV 值越高，機(jī)械密封的技術(shù)水平及難度系數(shù)越高。 </p> <p> 機(jī)械密封類別(Categories)的選擇隨著機(jī)械密封在機(jī)泵中的使用越來越多，使用要求也越來越高。鹽城清水密封廠家推薦</p><p style="text-indent:25px">密封面合理的間隙，機(jī)械密封的平衡程度，密封端面液膜的閃蒸都是造成端面打開而使固體顆粒進(jìn)入的主要原因。南通化工泵密封可定制企業(yè)</p><p> 為保證機(jī)械密封在高溫環(huán)境下正常工作，可以采取如下措施。 </p> <p> 給機(jī)封增加冷卻沖洗裝置。 </p> <p> 選擇耐高溫的材料，根據(jù)不同的工作溫度選用不同的材料。丁腈橡膠溫度上限為80℃，硅橡膠和氟橡膠為200℃，聚四氟乙烯為250℃。另外，機(jī)械密封中的非金屬摩擦副多采用石墨浸漬材料制成，所以也要根據(jù)不同的工作溫度選用不同種類的浸漬石墨。一般浸巴氏合金石墨適用溫度范圍小于150℃，浸樹脂石墨適用溫度范圍為170~200℃，浸銅、鋁、鉛的石墨可在小于400℃的工作條件下使用。動(dòng)環(huán)組件應(yīng)盡可能選用膨脹系數(shù)相近的材料，以防止高溫下動(dòng)環(huán)和動(dòng)環(huán)座的連接松動(dòng)。 </p> <p> 選擇金屬波紋管機(jī)械密封。金屬波紋管密封近年來在高溫密封中使用很多，并且取得了很好的效果。在該種機(jī)封中，金屬波紋管取代了普通機(jī)封中的彈簧，省去了動(dòng)環(huán)輔助密封圈，不需要克服動(dòng)環(huán)補(bǔ)償時(shí)與轉(zhuǎn)軸的摩擦和磨損，因此在高溫下使用，一般都能取得不錯(cuò)的效果。 </p> <p> <br /> 南通化工泵密封可定制企業(yè)</p><p style="text-indent:25px">漣水創(chuàng)密機(jī)械制造有限公司是一家漣水創(chuàng)密機(jī)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(yīng)用于石油、化工、電力、造紙，食品，機(jī)械密封件來料加工（塑料機(jī)械密封件除外）、銷售；機(jī)械配件、汽車配件銷售；自營和代理各類商品及技術(shù)的進(jìn)出口業(yè)務(wù)，的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠實(shí)可信的企業(yè)。創(chuàng)密機(jī)械制造深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的輕型密封，中型密封，重型密封，小型水泵。創(chuàng)密機(jī)械制造不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。創(chuàng)密機(jī)械制造始終關(guān)注機(jī)械及行業(yè)設(shè)備市場，以敏銳的市場洞察力，實(shí)現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1640149.html</p></div></div></div></div></div><div id="wokwntv" class="page-right twoColRt"><div id="hagiok7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8zvq3sd" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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