南京離心泵密封廠家批發(fā) 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(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="化工泵密封墊片選擇化工泵所抽取的介質(zhì)有腐蝕、揮發(fā)、等危險(xiǎn)性的存在，對(duì)泵體的密封性能要求，要比其他種類(lèi)的泵高很多?；け贸Ｓ玫拿芊夥椒?，有墊片密封法。墊片是離心泵靜密封的基本元件，使用范圍非常***。墊片的選型主要根據(jù)化工泵輸送介質(zhì)、溫度"><meta name="keywords" content="南京離心泵密封廠家批發(fā),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 http-equiv="Cache-Control" 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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293837011719/358206.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pbftr3d" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293837011719/358206.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vp9vhd1" 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>南京離心泵密封廠家批發(fā),封</p><p><span>***更新：</span>2021-01-15 15:12:10</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="3tp9l9l" 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(huà): </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(yíng)經(jīng)濟(jì)產(chǎn)業(yè)園</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="lzppx57" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="vv1hbvh" class="box"><p><p> 化工泵密封墊片選擇化工泵所抽取的介質(zhì)有腐蝕、揮發(fā)、等危險(xiǎn)性的存在，對(duì)泵體的密封性能要求，要比其他種類(lèi)的泵高很多?；け贸Ｓ玫拿芊夥椒ǎ袎|片密封法。墊片是離心泵靜密封的基本元件，使用范圍非常***。墊片的選型主要根據(jù)化工泵輸送介質(zhì)、溫度、壓力和腐蝕性等因素決定。 </p> <p> 當(dāng)化工泵輸送介質(zhì)，對(duì)溫度和壓力不高時(shí)，一般選用非金屬密封墊片； </p> <p> 當(dāng)化工泵輸送介質(zhì)為中壓高溫時(shí)，選用非金屬與金屬組合墊片。 </p> <p> 非金屬墊片在泵上應(yīng)用**為普遍，其材料一般為紙、橡膠和聚四氟乙烯。當(dāng)溫度不超過(guò)120℃，南京離心泵密封廠家批發(fā)，南京離心泵密封廠家批發(fā)，壓力在1.0Mpa以下時(shí)，一般選用青殼紙或模造紙墊片。 </p> <p> 如果當(dāng)化工泵輸送介質(zhì)為油，溫度在-30～110℃時(shí)，一般選用耐老化性能較好的丁晴橡膠。當(dāng)當(dāng)化工泵輸送介質(zhì)，在-50～200℃時(shí)，選用氟橡膠更為合適。因?yàn)樗四陀湍蜔嵬?，機(jī)械強(qiáng)度大也是其主要特征。 </p> <p> 在化工泵中由于所輸送介質(zhì)具有腐蝕性，所以一般選用聚四氟乙烯做為墊片材料。隨著化工泵使用的領(lǐng)域越來(lái)越多次，所輸送介質(zhì)種類(lèi)也越來(lái)越多，因此在選用墊片材質(zhì)時(shí)應(yīng)查閱相關(guān)資料或通過(guò)實(shí)驗(yàn)后再做出正確選擇。 </p> <p> <br /> 人們?cè)诜治鰴C(jī)械密封泄漏原因時(shí)，南京離心泵密封廠家批發(fā)，在機(jī)械封自身方面查找原因，比如：它的選型如是否合適，材料選擇是否正確。南京離心泵密封廠家批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京離心泵密封廠家批發(fā),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293837011719/358206.jpg"></div><p> <p> 影響泵用機(jī)械密封的外部原因 </p> <p> 泵軸的軸向竄量 </p> 泵軸的撓度偏大 </p> <p> 沒(méi)有輔助沖洗系統(tǒng)或輔助沖洗系統(tǒng)設(shè)計(jì)不合理 </p> <p> 振動(dòng)偏大及消除措施 </p> <p> <p> 泵氣蝕的原因及改進(jìn)措施 </p> <p> <p> 在凝結(jié)過(guò)程中，由于體積急劇縮小，四周的液體以極大的速度沖向整個(gè)凝結(jié)空間，使泵內(nèi)造成沖擊振動(dòng)和噪音。在壓力很大、頻率很高的液體質(zhì)點(diǎn)連續(xù)沖擊下，金屬表面逐漸因疲勞而破壞，這種破壞稱(chēng)為剝蝕。 </p> <p> 同時(shí)溶于液體中的氧等活潑氣體也使金屬產(chǎn)生腐蝕。由于化學(xué)腐蝕與機(jī)械剝蝕的共同作用，加快了金屬損壞的速度，從而使葉輪受到破壞，這就是汽蝕破壞，這種由于液體的汽化和凝結(jié)而產(chǎn)生的沖擊現(xiàn)象就稱(chēng)為氣蝕現(xiàn)象。消除泵進(jìn)口氣蝕的措施有以下幾點(diǎn)： </p> <p> 提高泵的氣蝕性能水平，滿(mǎn)足現(xiàn)場(chǎng)裝置的氣蝕性能的要求。 </p> <p> 泵應(yīng)當(dāng)在低于允許吸液高度下操作，以保證整個(gè)裝置安全可靠的運(yùn)轉(zhuǎn)。 </p> <p> 采用抗氣蝕材料制造葉輪，如：2Cr13、稀土合金鑄鐵、高鎳鉻合金材料等，比普通鑄鐵的抗氣蝕能力要好得多。 </p> <p> <br /> </p> <p> <br /> </p> </p> 南京離心泵密封廠家批發(fā)熱裂是高溫油泵，如油渣泵、回?zé)捰捅谩⒊p壓塔底泵等**常見(jiàn)的失效現(xiàn)象。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京離心泵密封廠家批發(fā),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg"></div><p> 機(jī)械好不好，密封很重要 </p> <p> <p> 油封是用于密封機(jī)械設(shè)備中旋轉(zhuǎn)軸的封油用密封元件，而腔體基本上是靜止的，所以油封又稱(chēng)旋轉(zhuǎn)軸唇形密封圈。 </p> <p> <span style="font-size:12px;">機(jī)械的摩擦部分由于在機(jī)械運(yùn)轉(zhuǎn)時(shí)有油進(jìn)入，為防止這些油從機(jī)械的間隙中泄漏而使用油封，并且除了油以外還需要防止水與化學(xué)藥液的泄漏以及塵埃及土砂從外部侵入，這時(shí)候也要用到油封。</span> </p> <p> <span style="font-size:12px;">油封的密封狀態(tài)，一是油封外緣和腔體之間為靜態(tài)密封，同時(shí)保證油封外緣在腔體之間的可靠定位。二是油封密封唇和軸之間的密封狀態(tài)，當(dāng)軸旋轉(zhuǎn)時(shí)為動(dòng)態(tài)密封，當(dāng)軸靜止時(shí)為靜態(tài)密封。各種影響因素的綜合作用及其相互作用，都對(duì)油封的密封性能和使用壽命產(chǎn)生了很大影響。</span> </p> <p> <br /> </p> </p><p> 機(jī)械密封動(dòng)、靜環(huán)之間的工作情況，大多數(shù)是處在邊界潤(rùn)滑和半液體潤(rùn)滑狀態(tài)下，而半液體潤(rùn)滑能夠在摩擦系數(shù)較小即磨損與發(fā)熱令人滿(mǎn)意的情況下，獲得好的密封效果。 </p> <p> 機(jī)械密封的動(dòng)、靜環(huán)之間的摩擦情況： </p> <p> 半液體潤(rùn)滑： </p> <p> 滑動(dòng)表面的凹坑處存有液體，接觸面之間維持一層很薄的液膜，所以發(fā)熱和磨損情況均較好，由于動(dòng)、靜環(huán)之間的液膜在其出口處有表面張力，故限制了液體的泄露。 </p> <p> 完全液體潤(rùn)滑： </p> <p> 但由于在這種情況下動(dòng)、靜環(huán)之間的縫隙較大，故起不到密封作用，泄露嚴(yán)重。當(dāng)動(dòng)、靜環(huán)之間的壓力不足，而使間隙增大時(shí)，液膜增厚，這時(shí)不存在固體接觸，故無(wú)摩擦現(xiàn)象。在實(shí)際應(yīng)用中一般不允許有這種情況出現(xiàn)（受控膜機(jī)械密封除外）。 </p> <p> 干摩擦： </p> <p> 滑動(dòng)摩擦面上無(wú)液體進(jìn)入，因而無(wú)液膜存在，塵土和氧化層，以及吸附的氣體分子等。當(dāng)動(dòng)、靜環(huán)運(yùn)轉(zhuǎn)時(shí)，其結(jié)果必然是使摩擦面發(fā)熱、磨損加劇而造成泄露。、邊界潤(rùn)滑： </p> <p> 由于表面不是特別平的，而是凹凸不平，在凸出會(huì)有接觸磨損，而在凹處則保持液體的潤(rùn)滑性能，造成邊界潤(rùn)滑。當(dāng)動(dòng)、靜環(huán)之間的壓力增大或者液體在摩擦面上形成液膜的能力較差時(shí)，液體將從間隙中被擠出。邊界潤(rùn)滑的磨損和發(fā)熱程度為中等。在使用單彈簧的機(jī)械密封時(shí)，忽略彈簧的旋轉(zhuǎn)方向與泵轉(zhuǎn)子轉(zhuǎn)動(dòng)方向的正確組合也時(shí)有發(fā)生。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京離心泵密封廠家批發(fā),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503162724609/640384.jpg"></div><p> 在設(shè)計(jì)合理，加工精良，裝配完好、轉(zhuǎn)速較高時(shí)，迷宮密封效果很好。但在實(shí)際應(yīng)用中，因此而產(chǎn)生的泄漏卻很多，分析其原因主要有： </p> <p> 密封副(如軸和軸承壓蓋)配合間隙太大，而此間隙與密封效果成反比。配合面粗糙，明顯的螺旋狀車(chē)刀痕在有些情況下也加大了泄漏趨勢(shì)。 </p> <p> 軸承室內(nèi)潤(rùn)滑油注入量太多，其溢出壓力超過(guò)了密封阻力。 </p> <p> 油窗或油位計(jì)安裝位置有誤，誤導(dǎo)了人們對(duì)油室內(nèi)潤(rùn)滑油量的正確判斷。 </p> <p> 運(yùn)轉(zhuǎn)中油溫的升高使其粘度降低，增加了泄漏的可能。 </p> <p> 回油槽或回油孔尺寸偏小，或受到其它障礙，使被阻滯的液體不能順利返回而造成泄漏。機(jī)械密封的正常運(yùn)行必須具備以下條件：泵軸的竄量不能太大。南京容積泵密封廠家批發(fā)</p><p style="text-indent:25px">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。南京離心泵密封廠家批發(fā)</p><p> 泵用機(jī)械密封的安裝和使用機(jī)械密封大多用于各種類(lèi)型的泵。機(jī)械密封是一種精度較高的密封裝置，對(duì)安裝和使用條件均有一定的要求。機(jī)械密封安裝使用的一般原則弄清設(shè)備的情況，要了解設(shè)備轉(zhuǎn)軸的轉(zhuǎn)速、軸徑；設(shè)備制造精度及密封腔尺寸，設(shè)備本身的使用壽命以及設(shè)備在生產(chǎn)工藝中的地位等要做均衡的考慮。估算介質(zhì)壓力。泵的密封腔壓力一般不是泵的出口壓力，而是低于泵的出口壓力。弄清密封介質(zhì)情況。要知道密封介質(zhì)的狀態(tài)，是氣態(tài)還是液態(tài)，介質(zhì)是否含顆粒及顆粒狀況；了解介質(zhì)的性質(zhì)、溫度，以便合理選型及采取必要的冷卻、沖洗、潤(rùn)滑措施。機(jī)械密封安裝使用的技術(shù)要求安裝機(jī)械密封部位的軸或軸套的徑向跳動(dòng)公差：Ф10~50mmФ50~120mm,。軸或軸套的表面粗糙度應(yīng)符合技術(shù)要求，外徑尺寸公差為h6。傳動(dòng)軸的軸向竄動(dòng)量不超過(guò)。密封腔體端面對(duì)軸表面的跳動(dòng)公差：軸或軸套外徑端面跳動(dòng)公差:Ф10~50mm，Ф50~120mm,軸或軸套的端面及密封腔體的端面要有倒角。軸徑≤Φ30mm時(shí)為3×10°，軸徑＞Φ30mm時(shí)為4×10°。當(dāng)輸送介質(zhì)溫度偏高、過(guò)低或含有雜質(zhì)顆粒、易燃、易爆、時(shí)，應(yīng)采取相應(yīng)的阻封、沖洗、冷卻、過(guò)濾等措施。南京離心泵密封廠家批發(fā)</p><p> 淮安市漣水創(chuàng)密機(jī)械制造有限公司是一家專(zhuān)業(yè)從事機(jī)械密封產(chǎn)品的開(kāi)發(fā)、制造、銷(xiāo)售與一體化的企業(yè)。企業(yè)擁有國(guó)內(nèi)前列的工藝、專(zhuān)業(yè)的技術(shù)人員，先進(jìn)的生產(chǎn)設(shè)備和檢測(cè)手段。堅(jiān)持以科技為導(dǎo)向，建立了嚴(yán)格的產(chǎn)品質(zhì)量和管理保證體系，并按照國(guó)家和國(guó)際的相關(guān)標(biāo)準(zhǔn)以及用戶(hù)的特殊需求，生產(chǎn)質(zhì)量的機(jī)械密封產(chǎn)品，滿(mǎn)足了廣大用戶(hù)的需求。同時(shí)，企業(yè)致力于為用戶(hù)提供相關(guān)的技術(shù)咨詢(xún)，解決用戶(hù)使用中的疑難和關(guān)鍵，體現(xiàn)了企業(yè)的價(jià)值。 </p> <p> <br /> </p> <p> 企業(yè)生產(chǎn)的機(jī)械密封產(chǎn)品包括：輕型密封、中型密封和重型密封。產(chǎn)品品種齊全，被廣泛應(yīng)用于石油、化工、電力、造紙，食品等行業(yè)。由于產(chǎn)品密封性能好，經(jīng)久耐用，深受廣發(fā)用戶(hù)好評(píng)。 </p> <p> <span style="font-size:12px;"> 企業(yè)始終以用戶(hù)至上、***為起點(diǎn)，緊扣時(shí)代脈搏，抓發(fā)展機(jī)遇，已被諸多用戶(hù)認(rèn)定為質(zhì)量產(chǎn)品供應(yīng)商，是值得依賴(lài)的合作伙伴。企業(yè)將永遠(yuǎn)把質(zhì)量的產(chǎn)品、誠(chéng)信的服務(wù)奉獻(xiàn)給廣大用戶(hù)，熱忱歡迎新老客戶(hù)惠顧。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p></p><br /><p>文章來(lái)源地址: 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