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href="http://www.cdcfah.com/cp/third-mifengjian_jmf/">機(jī)械密封</a>?包頭泵用機(jī)械密封圖片大全伊格爾博格曼機(jī)械密封供應(yīng)</p><div id="lwyvsp7" class="leftbox clearfix"><h1>包頭泵用機(jī)械密封圖片大全伊格爾博格曼機(jī)械密封供應(yīng)</h1><div id="2hu2uvn" class="proBig"><div id="c3297fh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990586083984/8203619.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qubif3q" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990586083984/8203619.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="r7of8gd" 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>包頭泵用機(jī)械密封圖片大全,泵用機(jī)械密封</p><p><span>***更新：</span>2020-11-22 03:16:24</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="ktvsz8o" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">伊格爾博格曼機(jī)械密封（張家港）有限公司</a></p><p><span>聯(lián)系人：</span>閆女士</p><p><span>郵箱: </span>eaglebugmann@qq.com</p><p><span>電話: </span>18013293108</p><p><span>傳真: </span>0512_</p><p><span>網(wǎng)址: </span>http://eaglebugmann.com</p><p><span>手機(jī): </span>0512-58756006</p><p><span>地址: </span>德積福民村（天霸路）</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="i33ykrt" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8li2qx3" class="box"><p><p> 在石油化工行業(yè)，離心泵具有性能范圍廣、流量均勻、結(jié)構(gòu)簡(jiǎn)單、運(yùn)轉(zhuǎn)可靠和維修方便等諸多優(yōu)點(diǎn)，包頭泵用機(jī)械密封圖片大全，得到了廣的使用，占裝置泵總量的70～80％。而常見離心泵有單端面密封離心泵、雙端面密封離心泵及屏蔽泵等。那么，包頭泵用機(jī)械密封圖片大全，在輸送危險(xiǎn)物料時(shí)單端面密封離心泵、雙端面密封離心泵及屏蔽泵那個(gè)安全性更好，相對(duì)那種泵又比較經(jīng)濟(jì)。本文以甲醇裂解制氫裝置甲醇輸送泵為例，針對(duì)這3種類型的離心泵的結(jié)構(gòu)特點(diǎn)和軸封特性進(jìn)行分析和探討。一、案例某石化企業(yè)甲醇裂解制氫裝置，原料由甲醇輸送泵P-3307A/B送到裝置進(jìn)料泵,該甲醇輸送泵工藝技術(shù)參數(shù)如下：表1-1：甲醇輸送泵工藝技術(shù)參數(shù)序號(hào)設(shè)備名稱設(shè)備位號(hào)輸送介質(zhì)流量m3/h揚(yáng)程m溫度℃1甲醇輸送泵P-3307A/B甲醇3010040甲醇的特性：甲醇是一種有機(jī)化合物，密度g/mL，沸點(diǎn)℃。甲醇揮發(fā)度高、無色、易燃易爆、有毒，誤飲5～10毫升能雙目失明，大量飲用會(huì)導(dǎo)致死亡。常用危險(xiǎn)化學(xué)品的分類及標(biāo)志(GB13690-92)將該物質(zhì)劃為第類中閃點(diǎn)易燃液體。二、各泵的結(jié)構(gòu)特點(diǎn)和軸封特性1、機(jī)械密封概述機(jī)械密封（也稱端面密封）是一種用來解決旋轉(zhuǎn)軸和機(jī)體之間的密封裝置，它是由至少一對(duì)垂直于旋轉(zhuǎn)軸線的端面，包頭泵用機(jī)械密封圖片大全，在流體壓力和補(bǔ)償機(jī)構(gòu)彈力的作用及輔助密封的配合下。貴陽飛力泵用機(jī)械密封廠家。包頭泵用機(jī)械密封圖片大全</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="包頭泵用機(jī)械密封圖片大全,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990586083984/8203619.png"></div><p> 這種密封形式不同于靜密封和動(dòng)密封，它具有截止、換向、節(jié)流、調(diào)節(jié)、減壓、安全、止回、分離等作用，它是一種特殊的密封裝置。這種泄漏很難治理。(4)本體泄漏：殼體、管壁、閥體、船體、壩身等材料自身產(chǎn)生的一種泄漏。如砂眼、裂縫等缺陷的泄漏。5.按泄漏的危害性分類(1)不允許泄漏：系指用感覺和一般方法檢查不出密封部位有泄漏現(xiàn)象的特殊工況。如極易燃易爆、劇毒、放射性介質(zhì)以及非常重要的部位，是不允許泄漏的。核電廠閥門要求使用幾十年仍舊完好不漏。(2)允許微漏：系指介質(zhì)允許微漏而不產(chǎn)生危害的工況。(3)允許泄漏：系指一定場(chǎng)合下的水和空氣類介質(zhì)的泄漏。6.按泄漏介質(zhì)的流向分類(1)向外泄漏：介質(zhì)從內(nèi)部往外部空間傳質(zhì)的一種現(xiàn)象。(2)向內(nèi)泄漏：外部空間的物質(zhì)向受壓體內(nèi)部傳質(zhì)的一種現(xiàn)象。如空氣和液體滲入真空設(shè)備容器中。(3)內(nèi)部泄漏：密封系統(tǒng)內(nèi)介質(zhì)產(chǎn)生傳質(zhì)的一種現(xiàn)象。如閥門在密封系統(tǒng)中關(guān)閉后的泄漏等。內(nèi)部泄漏難以發(fā)現(xiàn)和治理。7.按泄漏介質(zhì)種類分類如漏氣、漏汽、漏水、漏油、漏酸、漏堿、漏鹽等等。包頭泵用機(jī)械密封圖片大全西安飛力泵用機(jī)械密封泄露。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="包頭泵用機(jī)械密封圖片大全,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990676972656/2521191.png"></div><p> 要將軸封部分的溫度設(shè)計(jì)為0℃，這時(shí)用作氣體密封，密封圈可用普通O形或V形密封圈。密封結(jié)構(gòu)是與泵體結(jié)構(gòu)相適應(yīng)，常用的低溫泵采用立式結(jié)構(gòu).3.輔助裝置(1)要盡可能加大沖洗量，加強(qiáng)冷卻措施，或提高密封腔內(nèi)壓力，來控制液溫升高所引起的氣化現(xiàn)象，要***避免從泵出口端裝沖洗管線來沖洗密封端面，因?yàn)樵诘蜏叵?，這種沖洗管線內(nèi)液體會(huì)氣化.所以，一般采逆流沖洗方式.(2)防止單端面密封在泵停轉(zhuǎn)過程中大氣中水分與密封接觸使邊緣結(jié)冰，可用甲醇等化冰劑加以溶解，阻封部分也可通人氮?dú)飧蓺饧右员Ｗo(hù).總之，既要充分冷卻又要采取保冷措施。(3)在高于密封面的部位裝設(shè)排氣管線，這樣，如果產(chǎn)生氣體也可從排氣管線逸出。有關(guān)低溫泵的輔助裝置見第七節(jié)低溫泵輔助系統(tǒng)。二、低溫甲烷泵機(jī)械密封低溫泵通常是立式結(jié)構(gòu)，密封腔設(shè)在泵的上部，密封結(jié)構(gòu)為雙端面平衡型機(jī)械密封。低溫泵的結(jié)構(gòu)及布置如圖10-19所示。1.低溫泵的結(jié)構(gòu)特點(diǎn)(1)筒形結(jié)構(gòu)，不必?fù)?dān)心低溫時(shí)發(fā)生變形.(2)一級(jí)葉輪位于底部，通過增減柱形筒體的長(zhǎng)度(圖10-19中的葉輪只列出二級(jí)，實(shí)際有十多級(jí))，.來適應(yīng)葉輪級(jí)數(shù)的變化。(3)液體從上向下進(jìn)人葉輪，由吸人端排氣從而起到有效的氣體分離器作用。(4)立式結(jié)構(gòu)排氣順暢。</p><p> 上裝式釜用密封應(yīng)用較廣，它占引進(jìn)的釜用機(jī)械密封95%以上.例如，西德EKATO公司的RD13,RD23,RD200ST和日本炭研精工的2K07T型都是上裝式密封，它們用于PTA、聚乙烯和聚丙烯裝置。上裝式釜用機(jī)械密封的典型結(jié)構(gòu)如圖10-1所示，這是EKATO公司RD200ST型釜用密封的結(jié)構(gòu)圖.這種密封是雙端面帶水冷來套的密封結(jié)構(gòu)，適用操作溫度為130-180.如果操作溫度在130℃以下，可以不用水冷夾套，而用上部冷卻風(fēng)扇(圖3-38)，當(dāng)操作溫度至300--400℃時(shí)，必須采用底部帶法蘭冷卻器(圖io-2}的結(jié)構(gòu)，這里法蘭冷卻器起了熱阻擋層的作用.在安裝冷卻水管線時(shí)，要注意冷卻水出口管線與漏斗間高度至少在200mm以上，出口處水的溫度應(yīng)低于40-50℃.聚丙烯裝置第1號(hào)、2號(hào)反應(yīng)釜用攪拌器的機(jī)械密封如圖10-3所示：。漢中襄樊五二五泵用機(jī)械密封選型。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="包頭泵用機(jī)械密封圖片大全,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990601464844/125984.png"></div><p> 稱為環(huán)座）則用普通材料制成。為解決硬質(zhì)合金環(huán)和環(huán)座之間的聯(lián)接和密封，產(chǎn)生了熱裝式、帶密封圈式、焊接和釬焊四種組合式密封環(huán)。帶O型圈的組合式由匐環(huán)結(jié)構(gòu)封環(huán)在硬質(zhì)合金環(huán)與環(huán)座之間用H7／g8的滑動(dòng)配合。在兩者配合圓柱面間置一聚四氟乙烯或合成橡膠制成的O形密封圈，防止其間的密封流體泄漏，且將硬質(zhì)合金環(huán)與環(huán)座組合在一起。在硬質(zhì)合金環(huán)與環(huán)座的平面結(jié)合處設(shè)一銷釘，以傳遞扭矩。此種組合結(jié)構(gòu)，無組合應(yīng)力產(chǎn)生／也無由此引起的組合密封環(huán)的密封端面的變形，但是組合密封環(huán)零件的數(shù)量增加了，還需要在硬質(zhì)合金環(huán)上鉆孔或槽，給制造增加了難度，同時(shí)由于增設(shè)了o形圈，密封環(huán)的使用溫度受到了限制。熱裝式密封環(huán)的結(jié)構(gòu)為提高帶O形圈密封環(huán)的使用溫度，出現(xiàn)了熱裝式密封環(huán)。它是靠硬質(zhì)合金環(huán)和環(huán)座之間的過盈配合來傳遞扭矩并實(shí)現(xiàn)密封，是目前應(yīng)用多的一種密封環(huán)（圖23）。這種密封環(huán)組合時(shí)將環(huán)座加熱，環(huán)座孔受熱脹大，放入硬質(zhì)合金環(huán)，冷卻之后兩者在過盈下完成組合，再在常溫下研磨和拋光密封端面到要求的精度。這種環(huán)的缺點(diǎn)是，隨著時(shí)間的推移，環(huán)境和使用溫度的變化，密封端面的平面度將發(fā)生變化而不符合要求。究其原因，一是熱裝結(jié)構(gòu)本身存在過盈。福建循環(huán)泵用機(jī)械密封型號(hào)。680泵用機(jī)械密封</p><p style="text-indent:25px">延安脫硫泵用機(jī)械密封選型。包頭泵用機(jī)械密封圖片大全</p><p> 或殼體）的配合公差；?防轉(zhuǎn)銷與孔的配合公差。釜用機(jī)械密封零件公差與配合基本與上述相同。根據(jù)反應(yīng)釜攪拌軸的偏擺和振動(dòng)較大的特點(diǎn)，動(dòng)環(huán)內(nèi)徑尺寸一般比軸徑大1mm，其尺寸為d+1，同樣，靜環(huán)內(nèi)徑尺寸相應(yīng)應(yīng)比軸徑加大2~4mm，其尺寸為d+（2~4）。表9-1、表9-2列出機(jī)械密封常用尺寸公差數(shù)值。二、機(jī)械密封主要零件的技術(shù)要求1動(dòng)、靜環(huán)的形位公差與表面光潔度圖9-2為幾種典型的機(jī)械密封動(dòng)、靜環(huán)零件圖，圖中表示了關(guān)鍵部位的形位公差與表面光潔度。密封端面是機(jī)械密封的關(guān)鍵部位，其平面度要求≤，其表面粗糙度對(duì)于硬質(zhì)材料一般要求為Ra≤，軟質(zhì)材料為Ra≤。其中平面度及垂直度公差見表9-3。2彈簧的技術(shù)要求機(jī)械密封一般情況下采用圓柱螺旋壓縮彈簧，根據(jù)機(jī)械密封使用特點(diǎn)，壓縮彈簧的主要技術(shù)要求為：彈簧產(chǎn)品圖樣應(yīng)包括線徑、中徑（外徑）、自由高度、工作高度、工作負(fù)荷、彈簧剛度、有效圈數(shù)、總?cè)?shù)、材料等主要技術(shù)參數(shù)。彈簧在工作高度（推薦選用自由高度的67%±5%為工作高度）的負(fù)荷數(shù)值一般應(yīng)在試驗(yàn)負(fù)荷的62%~72%之間。注：測(cè)定彈簧特性時(shí)，以彈簧壓并高度時(shí)負(fù)荷數(shù)值作為試驗(yàn)負(fù)荷數(shù)值。彈簧在工作高度時(shí)的工作負(fù)荷F的極限偏差按表9-4的規(guī)定。彈簧外徑D2。包頭泵用機(jī)械密封圖片大全</p><p style="text-indent:25px">伊格爾博格曼機(jī)械密封（張家港）有限公司是一家機(jī)械密封，機(jī)械密封件，泵用機(jī)械密封，集裝式機(jī)械密封，釜用機(jī)械密封，攪拌器機(jī)械密封，金屬波紋管機(jī)械密封，泵廠配套機(jī)械密封，石家莊工業(yè)泵機(jī)械密封，襄樊五二五泵用機(jī)械密封，柳州酸王泵用機(jī)械密封，連成配套機(jī)械密封，凱泉配套機(jī)械密封，東方配套機(jī)械密封，南方配套機(jī)械密封，福斯機(jī)械密封，沃曼泵用機(jī)械密封，電廠配套機(jī)械密封，凱泉配套機(jī)械密封。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。公司自創(chuàng)立以來，投身于機(jī)械密封，泵用機(jī)械密封，釜用機(jī)械密封，攪拌器機(jī)械密封，是機(jī)械及行業(yè)設(shè)備的主力軍。張家港博格曼繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。張家港博格曼創(chuàng)始人劉義，始終關(guān)注客戶，創(chuàng)新科技，竭誠(chéng)為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2090523.html</p></div></div></div></div></div><div id="fovxz3a" class="page-right twoColRt"><div id="hwogi8t" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="32kbikr" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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