秦皇島泵用機(jī)械密封圖片大全伊格爾博格曼機(jī)械密封供應(yīng)-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=" 這種結(jié)構(gòu)類似形式很多(見圖4-8)，它的熱流體動(dòng)力效應(yīng)是在密封上形成，在密封環(huán)旋轉(zhuǎn)的時(shí)候，槽能使液體強(qiáng)烈地冷卻距它較遠(yuǎn)的密封表面。進(jìn)行這種冷卻時(shí)，在密封環(huán)的初始表面上形成與槽數(shù)相等的流體動(dòng)力楔"><meta name="keywords" content="秦皇島泵用機(jī)械密封圖片大全,泵用機(jī)械密封"><link rel="canonical" href="http://m.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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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>秦皇島泵用機(jī)械密封圖片大全,泵用機(jī)械密封</p><p><span>***更新：</span>2020-10-09 16:18:34</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="swdfctv" 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="f8onugn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8fmo8zg" class="box"><p><p> 這種結(jié)構(gòu)類似形式很多(見圖4-8)，它的熱流體動(dòng)力效應(yīng)是在密封上形成，在密封環(huán)旋轉(zhuǎn)的時(shí)候，槽能使液體強(qiáng)烈地冷卻距它較遠(yuǎn)的密封表面。進(jìn)行這種冷卻時(shí)，在密封環(huán)的初始表面上形成與槽數(shù)相等的流體動(dòng)力楔和高壓區(qū).由于切向流和壓力降，在每一個(gè)槽后形成慧星狀潤(rùn)滑楔(圖10-14).因此，隨著密面上載荷與滑動(dòng)速度的增加，摩擦系數(shù)反而減小(圖10-15).二、HSHF型高壓機(jī)械密封介紹芳烴裝置加料泵液力透平GAT-101A，功率968kW，轉(zhuǎn)速6748r/min，輸送介質(zhì)為烴類，使用溫度43~39度，進(jìn)口壓力，出口壓力，秦皇島泵用機(jī)械密封圖片大全，機(jī)械密封是布格曼公司HSHF型高壓密封，其定型產(chǎn)品為單端面、流體動(dòng)壓式帶泵效螺旋的結(jié)構(gòu).原工作參數(shù)P=5(14)MPa,t=300'C,V<50m/s,因單端面密封結(jié)構(gòu)不能滿足使用要求，所以采用雙端面結(jié)構(gòu)，由一個(gè)動(dòng)環(huán)對(duì)兩個(gè)靜環(huán)，結(jié)構(gòu)比較緊湊，它是筒形結(jié)構(gòu)，安裝比較方便之(圖10-16)，秦皇島泵用機(jī)械密封圖片大全.用于液力透平進(jìn)口端密封是HSHFD3/95規(guī)格，泵效套(6A)是右螺旋，泵效外殼(16A)是左螺旋;用于出口端密封是HSHFD4/95規(guī)格，泵效套(6B)是左螺旋，秦皇島泵用機(jī)械密封圖片大全，泵效外殼(16B)是右螺旋.因此，這兩套密封與旋轉(zhuǎn)方向有關(guān)，進(jìn)出口端不能裝錯(cuò)，泵效套也不能互換。高速機(jī)械密封當(dāng)線速度超過25~30m/s時(shí)，可視為高速。綿陽(yáng)襄樊五二五泵用機(jī)械密封泄露。秦皇島泵用機(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="秦皇島泵用機(jī)械密封圖片大全,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990573378906/8594308.png"></div><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)，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，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，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。西城區(qū)凱泉泵用機(jī)械密封圖木舒克襄樊五二五泵用機(jī)械密封選型。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="秦皇島泵用機(jī)械密封圖片大全,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990541582031/8933132.png"></div><p> 普通油封的使用壓力一般不超過。當(dāng)工作壓力超過這個(gè)值時(shí)應(yīng)選用耐壓型油封。在同一直徑條件下，不同材料制造的油封，適應(yīng)軸面旋轉(zhuǎn)線速度的能力不同。油封使用的線速度范圍一般小于15m/s。油封的工作范圍與油封使用的材料有關(guān)：材料為丁腈橡膠(NBR)時(shí)為-40~120℃，亞力克橡膠(ACM)-30~180℃，氟橡膠(FPM)-25~300℃。七、對(duì)應(yīng)軸及腔體的設(shè)計(jì)要求軸的設(shè)計(jì)：1、表面粗糙度，由于軸的速度與油量不同，一般軸的粗糙度過大或過小，都會(huì)影響到油封的泄漏與磨損。軸的表面粗糙度容許范圍為～μm；～μm。對(duì)旋轉(zhuǎn)軸用油封取～μmRz。2、硬度，旋轉(zhuǎn)軸的表面硬度一般取≥35HRC。當(dāng)介質(zhì)較臟，有來自外界的污染雜質(zhì)，或軸表速度>12m/s時(shí)，軸表面硬度應(yīng)為55HRC以上，軸表面淬火層深度>。3、軸的倒角，推薦值15°~30°，以能讓油封確實(shí)裝入，不損傷油封唇緣為原則。4、軸的加工，正確的軸加工是保證密封系統(tǒng)正常工作的決定性因素，適宜的油封軸加工方法是橫向給進(jìn)精研磨，金剛砂紙磨光。不適宜的加工方法是在車床上精加工，超精加工，滾光加工，金剛砂紙磨光（砂紙?jiān)谳S向移動(dòng)磨光）。5、軸的材料，主要是普通碳素結(jié)構(gòu)鋼，如C35和C45，另外還有鑄鐵，陶瓷類，樹脂塑料。</p><p> 1．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。2．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，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。3．工藝上采取相應(yīng)措施。如盡量減少介質(zhì)的含水量；保持密封腔壓力的相對(duì)穩(wěn)定；盡可能配備沖洗冷卻裝置；在設(shè)備啟動(dòng)前，對(duì)機(jī)封部位進(jìn)行適當(dāng)預(yù)熱等。三、高速下的機(jī)械密封當(dāng)轉(zhuǎn)速超過3000r/min或者摩擦副的線速度超過25m/s時(shí)，一般可視為高速密封。在高速條件下，摩擦端面由于線速度很大，摩擦產(chǎn)生的熱量也多，此時(shí)端面液膜不容易形成，磨損加劇。高速還容易引起旋轉(zhuǎn)環(huán)的振動(dòng)，并受到較大的離心力作用，不利于端面間液膜的形成和維持。所以在高速情況下，為了減小離心力和振動(dòng)的影響，應(yīng)盡量減少轉(zhuǎn)動(dòng)部件，采用彈簧靜止式結(jié)構(gòu)。圖木舒克循環(huán)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="秦皇島泵用機(jī)械密封圖片大全,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990697626953/3923738.png"></div><p> 從而可調(diào)整因磨損而增加的間隙，減小間隙泄漏(公眾號(hào):泵管家)，保證泵在高效率運(yùn)行?；蛟O(shè)置可更換的耐磨護(hù)板。軸封具有多種形式，填料密封，機(jī)械密封，副葉輪密封等。一般可選取集裝式機(jī)械密封，安裝精度高，更換維修方便，可靠性也高。軸承根據(jù)載荷（泵的大?。┑牟煌哂胁煌男问剑p載荷泵殼采用一對(duì)角接觸球軸承+圓柱滾子軸承，重載荷泵采用圓錐滾子軸承+圓柱滾子軸承。潤(rùn)滑采用稀油油浴潤(rùn)滑。結(jié)構(gòu)特點(diǎn)由于是脫硫裝臵中的大型關(guān)鍵設(shè)備，裝置對(duì)其可靠性及使用壽命有很高要求。FGD裝置消耗的電能有一半以上用于驅(qū)動(dòng)吸收塔循環(huán)泵。因此，循環(huán)泵應(yīng)具有較高的效率。泵的水力設(shè)計(jì)、結(jié)構(gòu)設(shè)計(jì)以及過流部件材料的選擇直接關(guān)系著泵運(yùn)行的效率、可靠性和使用壽命。下圖為襄樊五二五泵業(yè)開發(fā)的吸收塔循環(huán)泵泵體、泵蓋等過流件采用2605N材料，葉輪、耐磨板則采用Cr30A材料。泵的水力設(shè)計(jì)，借鑒了法國(guó)J〃S公司固液兩相流泵的設(shè)計(jì)制造技術(shù)。（1）泵為單級(jí)單吸式離心泵，該形式在實(shí)踐中已證明特別適用于FGD裝臵吸收塔循環(huán)泵輸送磨蝕性、腐蝕性漿體。（2）葉輪、耐磨板不采用口環(huán)密封形式，口環(huán)的設(shè)臵將會(huì)被漿體快速磨損，從而導(dǎo)致泵的效率快速下降。（3）具有軸向調(diào)節(jié)結(jié)構(gòu)。圖木舒克水泵用機(jī)械密封選型。包頭itt泵用機(jī)械密封</p><p style="text-indent:25px">延安格蘭富泵用機(jī)械密封選型。秦皇島泵用機(jī)械密封圖片大全</p><p> 如油渣泵、回?zé)捰捅?、常減壓塔底泵等常見的失效現(xiàn)象。在密封面處由于干摩擦、冷卻水突然中斷，雜質(zhì)進(jìn)入密封面、抽空等情況下，都會(huì)導(dǎo)致環(huán)面出現(xiàn)徑向裂紋；b）石墨炭化是使用碳-石墨環(huán)時(shí)密封失效的主要原因之一。由于在使用中，如果石墨環(huán)一旦超過許用溫度（一般在-105～250℃）時(shí)，其表面會(huì)析出樹脂，摩擦面附近樹脂會(huì)發(fā)生炭化，當(dāng)有粘結(jié)劑時(shí)，會(huì)發(fā)泡軟化，使密封面泄漏增加，密封失效；c）輔助密封件（如氟橡膠、乙丙橡膠、全橡膠）在超過許用溫度后，將會(huì)迅速老化、龜裂、變硬失彈。現(xiàn)在所使用的柔性石墨耐高溫、耐腐蝕性較好，但其回彈性差。而且易脆裂，安裝時(shí)容易損壞。6.由于密封端面的磨損而造成的密封失效a）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。對(duì)常用的材料，按耐磨性排列的次序?yàn)椋禾蓟?碳石墨、硬質(zhì)合金-碳石墨、陶瓷-碳石墨、噴涂陶瓷--碳石墨、氮化硅陶瓷--碳石墨、高速鋼--碳石墨、堆焊硬質(zhì)合金--碳石墨。b）對(duì)于含有固體顆粒介質(zhì)，密封面進(jìn)入固體顆粒是導(dǎo)致使密封失效的主要原因。固體顆粒進(jìn)入摩擦副端面起研磨劑作用，使密封發(fā)生劇烈磨損而失效。密封面合理的間隙。秦皇島泵用機(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。張家港博格曼始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。張家港博格曼始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使張家港博格曼在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1480256.html</p></div></div></div></div></div><div id="3y8olsu" class="page-right twoColRt"><div id="im2ikbd" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8gf8pbn" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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