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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hlikrtq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464454404297/9214202.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="utqiu7l" 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>阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW,柳州酸王泵用機(jī)械密封</p><p><span>***更新：</span>2021-01-30 06:12:16</p><p><span id="click" >瀏覽次數(shù)：6次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="fogyvhj" 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="ha3ro3f" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="atfhovx" class="box"><p><p> 是否影響機(jī)械密封的正常工作狀態(tài)。⑤檢查固定端蓋的螺釘是否松動(dòng)，而引起密封端蓋的偏斜。⑥檢查泵的軸向竄動(dòng)和徑向振動(dòng)是否超過使用的技術(shù)要求。⑦若是裝軸套的情況，檢查軸套與軸之間的密封是否損壞，阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW，位置是否正確。⑧檢查密封體內(nèi)有無密封液循環(huán)，機(jī)械密封是否處于干摩擦狀態(tài)。機(jī)械密封件的選型方法和使用要求機(jī)械密封件屬于精密、結(jié)構(gòu)較為復(fù)雜的機(jī)械基礎(chǔ)元件之一，是各種泵類、反應(yīng)合成釜、透平壓縮機(jī)、潛水電機(jī)等設(shè)備的關(guān)鍵部件。其密封性能和使用壽命取決于許多因素，如選型、機(jī)器的精度、正確的安裝使用等。一、選型方法機(jī)械密封按工作條件和介質(zhì)性質(zhì)的不同，有耐高溫、耐低溫機(jī)械密封，耐高壓、耐腐蝕機(jī)械密封，耐顆粒介質(zhì)機(jī)械密封和適應(yīng)易汽化的輕質(zhì)烴介質(zhì)的機(jī)械密封等，應(yīng)根據(jù)不同的用處選取不同結(jié)構(gòu)型式和材料的機(jī)械密封。選型的主要參數(shù)有：密封腔體壓力(MPa)、流體溫度(℃)、工作速度(m/s)，阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW、流體的特性以及安裝密封的有效空間等。選型的基本原則為：1.根據(jù)密封腔體壓力，確定密封結(jié)構(gòu)采用平衡型或非平衡型，單端面或雙端面等。2.根據(jù)工作速度，確定采用旋轉(zhuǎn)式或靜止式，流體動(dòng)壓式或非接觸型。3.根據(jù)溫度及流體性質(zhì)，阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW，確定摩擦副和輔助密封材料。HB150-125-24柳州酸王泵用機(jī)械密封。阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW,柳州酸王泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464454404297/9214202.png"></div><p> 3)先將靜環(huán)與壓蓋一起裝在軸上，注意不要與軸相碰，然后將動(dòng)環(huán)組件裝入。彈簧座或傳動(dòng)座的緊定螺釘應(yīng)分幾次均勻擰緊。在未固定壓蓋之前，用手推補(bǔ)償環(huán)作軸向壓縮，松開后補(bǔ)償環(huán)能自動(dòng)彈回?zé)o卡滯現(xiàn)象，然后將壓蓋螺拴均勻地鎖緊。4.使用(1)當(dāng)輸送介質(zhì)溫度偏高、過低、或含有雜質(zhì)顆粒、易燃、易爆、有毒時(shí)，必須采取相應(yīng)的阻封、沖洗、冷卻、過濾等措施。(2)運(yùn)轉(zhuǎn)前用手盤車，注意轉(zhuǎn)矩是否過大，有無擦碰及不正常的聲音。(3)注意旋向，聯(lián)軸器是否對(duì)中，軸承部位的潤滑油加法是否適當(dāng)，配管是否正確。(4)運(yùn)轉(zhuǎn)前首先將介質(zhì)、冷卻水閥門打開，檢查密封腔內(nèi)的氣體是否全排出，防止靜壓引起泄漏，然后開機(jī)運(yùn)行。(5)開車后工作是否正常穩(wěn)定，有無因軸轉(zhuǎn)動(dòng)引起的異常轉(zhuǎn)矩，以及異常響聲和過熱現(xiàn)象。三、主要技術(shù)結(jié)構(gòu)和解決方法這些泵的機(jī)械密封是由兩塊垂直于軸的密封元件(靜環(huán)和動(dòng)環(huán))組成的，其表面光潔而平直，相互貼合。密封端面平面度不大于，表面粗糙度，金屬材料Ra=μm，非金屬材料Ra=μm。動(dòng)環(huán)和靜環(huán)作相對(duì)轉(zhuǎn)動(dòng)，摩擦副材料為石墨、氧化鋁陶瓷、碳化硅、氮化硅、碳化鎢硬質(zhì)合金等。工作時(shí)，靠彈簧和密封介質(zhì)(工作溶液)的壓力在旋轉(zhuǎn)的動(dòng)環(huán)和靜環(huán)的接觸表面上產(chǎn)生適當(dāng)?shù)膲壕o力。阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW營口柳州酸王泵用機(jī)械密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW,柳州酸王泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464549248047/3361341.png"></div><p> 另外還可選用[PV]值高的摩擦副材料，減小端面的接觸寬度，或者采用受控膜機(jī)械密封。近年來，一種名為差動(dòng)環(huán)式的機(jī)械密封也在高速設(shè)備中得到應(yīng)用。由于在原先的動(dòng)靜環(huán)中間加入了一個(gè)差動(dòng)環(huán)，可以將摩擦副線速度降低一半，取得了不錯(cuò)的效果。四、高壓下的機(jī)械密封機(jī)械密封工作壓力超過4-5MPa即屬于高壓密封范圍。在高壓條件下，由于密封端面比壓值過大，引起端面發(fā)熱，從而破壞液膜的形成，造成異常磨損。高壓還可能使摩擦副產(chǎn)生變形和破裂。高壓密封一般均采用平衡型結(jié)構(gòu)，以使端面比壓處于一個(gè)合適的范圍。但考慮到密封的可靠性，平衡系數(shù)不可能無限制增大，因而有些情況盡管已經(jīng)采用了平衡型結(jié)構(gòu)，但端面比壓仍可能較大。單靠平衡型結(jié)構(gòu)很難滿足使用要求，這種情況可采用多端面機(jī)封或者受控膜機(jī)械密封。五、腐蝕環(huán)境下的機(jī)械密封有些機(jī)械密封處于腐蝕環(huán)境中，這時(shí)不*要注意機(jī)封中每個(gè)零件本身的耐腐蝕性，還要防止它們組合在一起時(shí)可能產(chǎn)生的電耦現(xiàn)象。腐蝕環(huán)境中的機(jī)械密封，在選用時(shí)要注意采用耐腐蝕的材料。此外，可以采用外裝式機(jī)械密封。對(duì)腐蝕性特強(qiáng)容易引起安全事故的，可以采用雙端面密封，引入隔離液加以保護(hù)。</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。朝陽區(qū)柳州酸王泵用機(jī)械密封。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW,柳州酸王泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637358464518955078/5799986.png"></div><p> 泵用機(jī)械密封種類繁多，型號(hào)各異，但泄漏點(diǎn)主要有五處：軸套與軸間的密封動(dòng)環(huán)與軸套間的密封動(dòng)、靜環(huán)間密封對(duì)靜環(huán)與靜環(huán)座間的密封密封端蓋與泵體間的密封現(xiàn)象：操作中密封發(fā)出爆裂聲（端面爆裂聲）可能的原因：密封液在密封界面汽化；加強(qiáng)密封面的冷卻解決方法：增加旁路沖洗管線（如果沒有的話）擴(kuò)大旁路沖洗管線和/或壓蓋上的開孔。現(xiàn)象：密封連續(xù)滴漏可能的原因：表面不平；石墨密封面起泡；密封面產(chǎn)生熱變形解決方法：在安裝過程中，輔助密封被劃傷O形圈老化，由于壓縮形變輔助密封變硬變脆由于化學(xué)作用輔助密封變軟變粘?，F(xiàn)象：彈簧失效可能的原因：由于腐蝕作用，金屬附件損壞，傳動(dòng)機(jī)構(gòu)被腐蝕解決方法：檢查不正確的安裝尺寸，檢查是否采用了不合適的材料和密封類型改進(jìn)沖洗冷卻管線，檢查是否出現(xiàn)壓蓋螺栓扭矩過大導(dǎo)致壓蓋變形，檢查壓蓋墊片的比壓是否合適，檢查密封面間有無其他固體顆粒，如需要時(shí)對(duì)密封面重新拋光。檢查密封面處的裂紋，更換主、配合密封環(huán)?，F(xiàn)象：操作過程中，密封發(fā)出尖嘯聲可能的原因：密封處的潤滑液量不足解決方法：增加旁路沖洗管線（如果沒有的話）擴(kuò)大旁路沖洗管線和/或壓蓋上的開孔。滄州柳州酸王泵用機(jī)械密封。阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW</p><p style="text-indent:25px">揚(yáng)州柳州酸王泵用機(jī)械密封。阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW</p><p> 但這種做法要求在密封維修時(shí)將液泵的濕端拆卸下來，其主要好處是密封的環(huán)境衛(wèi)生易于控制。外密封的安裝方式是將靜態(tài)密封面的方向顛倒過來，主軸上的旋轉(zhuǎn)單元位于填料盒壓蓋的外面。外密封主要具有以下五大好處：1.安裝容易;2.費(fèi)用相對(duì)較低;3.可以連續(xù)監(jiān)控和清潔;4.適于無法在內(nèi)部安裝密封的很小填料盒;5.由于其位置接近軸承，對(duì)主軸偏差的困難影響較少。其主要缺點(diǎn)是離心力會(huì)將固體顆粒從密封的下面甩向密封的接觸面上。因此，這類密封主要適用于清潔且不含有磨料的液體。近年來，分離式密封已成為外密封中的另一重要附加特性。分離式密封是一個(gè)成套總成，安裝于填料盒與軸承套之間，采用這種設(shè)計(jì)，在密封需要更換時(shí)，不需要每次都拆卸液泵。這類密封結(jié)合探討其他設(shè)計(jì)標(biāo)準(zhǔn)正在逐步開發(fā)之中。由于這種設(shè)計(jì)易于更換密封，因此**只更換密封件的這種誘惑，而對(duì)出現(xiàn)故障的根源不做進(jìn)一步的調(diào)查，這一點(diǎn)非常重要。彈筒式密封圖4自身帶有全部功能的彈筒式密封裝置采用這種密封可簡化安裝程序，同時(shí)可保護(hù)內(nèi)部各個(gè)元件，免受意外損壞。彈筒式密封是一種集全部功能于一身的密封裝置，其內(nèi)部包括所有的密封元件、壓蓋和軸套(見圖4)。由于這類密封不需要任何嚴(yán)格的安裝措施。阜陽柳州酸王泵用機(jī)械密封HMR3C/142SW</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3076964.html</p></div></div></div></div></div><div id="hlczgip" class="page-right twoColRt"><div id="dmyqnfb" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2ta2ewy" class="recomPic 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