南京清水密封銷售廠家值得信賴漣水創(chuàng)密機械供應-b2b網站_b2b電子商務平臺【買產品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="有害介質時為了取得更好的密封效果，采用雙重密封，根據密封液系統(tǒng)壓力可分為有壓雙封(雙端面機械密封)和無壓雙封(串聯式機械密封)。有壓雙封密封液系統(tǒng)的壓力一般要比一級密封前的壓力高0.01-0.03MPa。這樣一級密封泄漏時，密封液會進入泵內"><meta name="keywords" content="南京清水密封銷售廠家,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" content="no-transform" /> <meta http-equiv="Cache-Control" 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src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293279589844/7625641.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="g2ms2ye" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293279589844/7625641.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wokok24" class="content"><p><span>需求數量：</span>0</p><p><span>價格要求：</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>產品關鍵詞：</span>南京清水密封銷售廠家,封</p><p><span>***更新：</span>2020-12-20 11:08:43</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="uciu2ui" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">漣水創(chuàng)密機械制造有限公司</a></p><p><span>聯系人：</span>袁經理</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>網址: </span></p><p><span>手機: </span>153-66621921</p><p><span>地址: </span>高溝鎮(zhèn)高揚民營經濟產業(yè)園</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="42osg22" class="page-proshow02"><p class="title">詳細說明</p><div id="wmqk2wi" class="box"><p><p> 有害介質時為了取得更好的密封效果，采用雙重密封，根據密封液系統(tǒng)壓力可分為有壓雙封(雙端面機械密封)和無壓雙封(串聯式機械密封)。 </p> <p> 有壓雙封密封液系統(tǒng)的壓力一般要比一級密封前的壓力高0.01-0.03MPa。這樣一級密封泄漏時，密封液會進入泵內，確保了泵內介質不會泄漏到外界。由于密封液進入泵內，密封液系統(tǒng)壓力、液位降低，南京清水密封銷售廠家，可以實現密封的泄漏監(jiān)測和報警，南京清水密封銷售廠家。 </p> <p> 無壓雙封密封系統(tǒng)內的壓力一般為常壓或微壓，低于一級密封前的密封腔壓力。當一級密封泄漏時，南京清水密封銷售廠家，泵內介質會進人密封液系統(tǒng)，導致密封液系統(tǒng)的壓力和液位升高，可以通過壓力開關或液位開關實現泄露監(jiān)測和報警。通過密封液系統(tǒng)來監(jiān)測雙端面機械密封失效與否，也是其區(qū)別于單端面機械密封**主要的形式之一。 </p> <p> <br /> 泵用機械密封經過靜試后，運轉時高速旋轉產生的離心力，會阻擋介質的泄漏。南京清水密封銷售廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京清水密封銷售廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293279589844/7625641.jpg"></div><p> 高溫熱油泵 </p> <p> 對于煉油裝置中有一部分泵的介質溫度均在200°C以上，有的甚至超過300 °C，此時若機械密封沖洗方案的選擇為PLAN53B，應多加考慮PLAN53B 系統(tǒng)中蓄能器皮囊的耐溫問題。通常情況下，蓄能器皮囊若為普通橡膠材質，耐溫不超過120 °C，即使是氟橡膠耐溫也不超過200 °C。 </p> <p> API 682 中PLAN53B 系統(tǒng)的布置方式如圖1 所示，從圖中可以看出高溫的密封隔離液從密封腔直接經過蓄能器，然后再經過冷卻器，再回到密封腔。此種布置方式在隔離液溫度升高之后，可能會導致蓄能器內介質溫度升高，致使皮囊失效。常州管道泵密封哪家比較好影響密封的主要因素有哪些？密封本身質量、工藝操作條件、裝配安裝精度、主機本身精度、密封輔助系統(tǒng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京清水密封銷售廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg"></div><p> 機械密封動、靜環(huán)之間的工作情況，大多數是處在邊界潤滑和半液體潤滑狀態(tài)下，而半液體潤滑能夠在摩擦系數較小即磨損與發(fā)熱令人滿意的情況下，獲得好的密封效果。 </p> <p> 機械密封的動、靜環(huán)之間的摩擦情況： </p> <p> 半液體潤滑： </p> <p> 滑動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、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> 完全液體潤滑： </p> <p> 但由于在這種情況下動、靜環(huán)之間的縫隙較大，故起不到密封作用，泄露嚴重。當動、靜環(huán)之間的壓力不足，而使間隙增大時，液膜增厚，這時不存在固體接觸，故無摩擦現象。在實際應用中一般不允許有這種情況出現（受控膜機械密封除外）。 </p> <p> 干摩擦： </p> <p> 滑動摩擦面上無液體進入，因而無液膜存在，塵土和氧化層，以及吸附的氣體分子等。當動、靜環(huán)運轉時，其結果必然是使摩擦面發(fā)熱、磨損加劇而造成泄露。、邊界潤滑： </p> <p> 由于表面不是特別平的，而是凹凸不平，在凸出會有接觸磨損，而在凹處則保持液體的潤滑性能，造成邊界潤滑。當動、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，液體將從間隙中被擠出。邊界潤滑的磨損和發(fā)熱程度為中等。 </p><p> 螺紋密封 </p> <p> 螺紋密封在泵上一般有兩種形式，一種是螺紋聯接墊片密封，一種是螺紋加填充濟密封，二者皆用于小直徑螺紋連接的密封場合。螺紋聯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幾何位置精度對密封效果影響也很大。于由密封墊片在擰緊螺紋時不僅承受壓緊力，還承受扭矩，使墊片產生變形甚至損壞，因此，當墊片為非金屬時，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30Mpa以上。 </p> <p> 泵上經常使用的絲堵，則是另一種螺紋密封形式。由于考慮到絲堵制造的經濟性，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，與絲堵和螺紋孔的配合形式沒有關系。螺紋孔與絲堵無論采用"錐對錐"還是"柱對錐"，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尺寸偏大，使螺紋牙形變短，牙頂變寬，造成密封面減小，當密封壓力升高后產生泄漏，甚至將絲堵壓出。泄漏通道也可同時存在，但一般有主次區(qū)別，只要觀察細致，熟悉結構，一定能正確判斷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京清水密封銷售廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg"></div><p> 油封主要由密封體、加強骨架和自緊螺旋彈簧等幾部分組成。密封體按照不同部位又分為底部、腰部、刃口和密封唇等。。 </p> <p> <span style="font-size:12px;">金屬骨架就如同混凝土構件里面的鋼筋，起到加強的作用，并使油封能保持形狀及張力。通常，在自由狀態(tài)下的骨架油封，其內徑比軸徑小，即具有一定的“過盈量”。因此，當油封裝入油封座和軸上之后，油封刃口的壓力和自緊螺旋彈簧的收縮力對軸產生一定的徑向緊力，經過一段時間運行后，該壓力會迅速減小乃至消失，因而，加上彈簧可以隨時補償油封自緊力。</span> </p> <p> <span style="font-size:12px;">油封外緣使油封在腔體孔內固定的同時，起防止流體從油封外周面與腔體內表面的接觸面之間泄漏及侵入的作用。另外金屬骨架是當油封固定在腔體內時，起保持配合力的作用。</span> </p> <p> <span style="font-size:12px;">密封唇部是柔性彈性體，設計成對機械的震動及密封流體的壓力變動的影響下仍可保持穩(wěn)定的密封作用，并起到保持唇部與軸表面穩(wěn)定接觸狀態(tài)的作用。彈簧可提高密封唇向軸的壓緊力，起維持此壓緊力的作用。唇端部被制作成斜鍥形狀，在端部處按壓軸表面，起密封流體的作用。</span> </p> <p> <span style="font-size:12px;">防塵唇是沒有與彈簧連接的副唇，起防止塵埃侵入的作用。</span> </p> <p> <br /> 對于含有固體顆粒介質，密封面進入固體顆粒是導致使密封失效的主要原因。常州管道泵密封哪家比較好</p><p style="text-indent:25px">在實際安裝過程中，應該做好對裝配圖的核對工作，并檢各種零件表面是否出現了劃痕、缺點等情況。南京清水密封銷售廠家</p><p> 泵用機械密封是精密的部件，制造精度及安裝精度要求都很嚴格，如果裝配不當就會影響密封性能，要正確安裝必須注意以下幾點： </p> <p> 泵用機械密封的冷卻和沖洗 </p> <p> 第一種冷卻形式由水泵的出口或高壓端，將輸送的干凈介質，直接沖洗密封端面，然后進入泵腔內，通過介質的不斷循環(huán)，將磨擦端面的的磨擦熱帶走達到冷卻的效果。 </p> <p> 第二種冷卻方式在第一種冷卻形式的基礎上在靜環(huán)的背部增加一冷卻水套，冷卻效果有所改善，并可以沖洗，收集泄露出來的液體。當密封介質溫度＞150℃時除了在冷卻水套中通過冷卻水及靜環(huán)背部冷卻外，應采取強制冷卻措施。即從泵出口的干凈介質應預先經熱交換器冷卻至50℃時。再進入密封腔冷卻沖洗，該形式是冷卻效果**良好的一種。 </p> <p> 如介質中含有顆粒或雜質，必須采用過濾措施，把常溫干凈沖洗液輸入密封腔內。南京清水密封銷售廠家</p><p> 淮安市漣水創(chuàng)密機械制造有限公司是一家專業(yè)從事機械密封產品的開發(fā)、制造、銷售與一體化的企業(yè)。企業(yè)擁有國內前列的工藝、專業(yè)的技術人員，先進的生產設備和檢測手段。堅持以科技為導向，建立了嚴格的產品質量和管理保證體系，并按照國家和國際的相關標準以及用戶的特殊需求，生產質量的機械密封產品，滿足了廣大用戶的需求。同時，企業(yè)致力于為用戶提供相關的技術咨詢，解決用戶使用中的疑難和關鍵，體現了企業(yè)的價值。 </p> <p> <br /> </p> <p> 企業(yè)生產的機械密封產品包括：輕型密封、中型密封和重型密封。產品品種齊全，被廣泛應用于石油、化工、電力、造紙，食品等行業(yè)。由于產品密封性能好，經久耐用，深受廣發(fā)用戶好評。 </p> <p> <span style="font-size:12px;"> 企業(yè)始終以用戶至上、***為起點，緊扣時代脈搏，抓發(fā)展機遇，已被諸多用戶認定為質量產品供應商，是值得依賴的合作伙伴。企業(yè)將永遠把質量的產品、誠信的服務奉獻給廣大用戶，熱忱歡迎新老客戶惠顧。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2486034.html</p></div></div></div></div></div><div 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