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href="http://www.cdcfah.com/cp/first-_jxjxysb/">機械及行業(yè)設備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_mifengjian/">密封件</a>?<a href="http://www.cdcfah.com/cp/third-mifengjian_jmf/">機械密封</a>?合肥管道泵用機械密封件伊格爾博格曼機械密封供應</p><div id="hbdkw8y" class="leftbox clearfix"><h1>合肥管道泵用機械密封件伊格爾博格曼機械密封供應</h1><div id="vpbtkrt" class="proBig"><div id="aur737j" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182248554687/4040785.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="aegxzfw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182248554687/4040785.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ga820x2" 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>合肥管道泵用機械密封件,泵用機械密封件</p><p><span>***更新：</span>2021-01-12 11:19:09</p><p><span id="click" >瀏覽次數：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="lo8jqhy" 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>網址: </span>http://eaglebugmann.com</p><p><span>手機: </span>0512-58756006</p><p><span>地址: </span>德積福民村（天霸路）</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="h3jzqs8" class="page-proshow02"><p class="title">詳細說明</p><div id="327bc8z" class="box"><p><p> 不僅在開啟力和閉合力之間有嚴格比率，而且要求整個密封結構經得住高壓而不變形，此外，還要維持穩(wěn)定的液膜以保證密封性能.一、高壓機械密封的要求1，合肥管道泵用機械密封件.增大密封零件截面對轉動零件的截面要加大，靜環(huán)也相應有較大的截面，不要在靜環(huán)外徑上有臺階或開槽.但要注意，隨著密封面寬度b的增加，熱變形和磨損也隨之增加，同樣要增加壓蓋的厚度以防變形和能承受壓力.使用重載荷彈簧，使用較大直徑的銷子以適應較大的啟動扭矩.2，合肥管道泵用機械密封件.提高密封零件的加工精度(1)壓蓋底部裝靜環(huán)的幢孔面要保證高的平直度，因為在高壓下，任何表面上的高出點會傳給靜環(huán)而引起泄漏;(2)提高密封面內外徑和寬度的加工精度，因為在高壓時，，密封內外徑和寬度的精度對比壓的變化有明顯的影響.密封端面研磨、.拋光后的粗糙度為(▽12~▽13)，平直度必須限制在1個光帶以內.此外，摩擦端面的垂直度和軸的精度也要相應提高，合肥管道泵用機械密封件.注意在高壓下因不同介質所造成的沖刷腐蝕和磨損，圖10-12(a),(b)表示不同摩擦副材料在不同的轉速下介質為烴和水及水溶液時壓力與密封尺寸的關系.5采用流體動壓式機械密封流體動壓式(也稱流體動力式，熱流體動壓式)機械密封是考慮在高壓和摩擦熱的情況下。濱海新區(qū)襄樊五二五泵用機械密封件選型。合肥管道泵用機械密封件</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="合肥管道泵用機械密封件,泵用機械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182248554687/4040785.png"></div><p> 硬環(huán)的材質種類很多（見“27”）。只有在特殊情況下，如介質中含有固體顆粒、有結晶析出或高粘度流體中才選用硬對硬的配對。當選用一軟一硬的配對時硬環(huán)端面的寬度比軟環(huán)寬，在硬對硬的材質中可不受此限制。為減少泄漏量和機械雜質進入密封端面的可能性，盡量采用內裝內流式密封結構S選擇導熱性良好的材料做動環(huán)，以散出較多的熱量，降低密封端面的溫度。為保證密封環(huán)的整體強度和剛度，環(huán)的壁厚不可太薄。對于導熱性良好的材料，增加環(huán)厚有利散熱；對于導熱性欠佳的材料厚度可小些。對于所受壓力較高的密封環(huán)，要從力學角度另行設計，必要時采取加固措施。環(huán)的形狀要軸對稱，以減少其不對稱的機械變形和熱變形。動環(huán)做補償環(huán)時，例如國產104和B104型密封（圖13、圖14），動環(huán)和軸（軸套）的（直徑）間隙為0．40～0．60mm，以防止動環(huán)在工作中卡住而失去補償能力；靜環(huán)內徑要比軸（軸套）大l～2mm，避免兩者摩擦。密封端面的寬度是個重要參數，要綜合考慮。三、密封端面的寬度要考慮的因素密封端面的寬度一般是首先決定軟面的寬度，硬面寬度自不待說。泄漏量與端面寬度關系不大。但是，從產生的摩擦熱量來說窄一些較好，產生的熱量較少，溫度梯度小，熱變形也小。合肥管道泵用機械密封件朝陽區(qū)石家莊工業(yè)泵泵用機械密封件維修。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="合肥管道泵用機械密封件,泵用機械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182347558593/4790620.png"></div><p> 用于壓縮機的高速機械密封的直徑較大，而用于高速泵的機械密封尺寸一般都在2in左右.高速泵用的機械密封以美國約翰克蘭公司(JohnCranePackingCompany)的9AB型密封**為典型[圖10-17(a),(b)]，這種密封常用在美國Sundstrand公司高速泵的齒輪箱和泵體的密封上.為了節(jié)省空間并獲得較高的重量與功率比，無論泵的結構和機械密封結構都很緊湊，一般石油化工公司都引進這種高速泵‘，目前揚子石油化工公司有關裝置使用51臺(見表3-41)，中國石油化工總公司系統(tǒng)使用近200臺。圖中60C用于齒輪箱密封，60A或60A+60B用于泵葉輪端密封.低溫機械密封一般低溫機械密封是指工作溫度在0~-50℃的密封，API-610的低溫含義指溫度低于-29℃，國內通常以密封腔溫度低于-20℃為低溫.實際上，低溫范圍較寬，可以劃分為:低溫:-20~-50℃中低溫:-50~-100℃極低溫:-100~-196℃**溫:<-196℃泵送低溫介質主要指液化氣體和易揮發(fā)的液體，如液態(tài)氮、液態(tài)氧、甲烷、乙烷、乙烯等液化氣。關于氮、氧、空氣等液化氣體的物理性能如表10-3所示.關于乙烯、丙烯、甲烷、乙烷、丙烷的物理性能如圖10-18(a)、(b)、(c)、(d)所示·一、低溫機械密封的要求1.材料要求金屬材料隨著溫度降低。</p><p> 氣體不會在泵的中部滯留·(5)無軸的彎曲問題，軸封可遠離泵體，減少熱的影響。電機安裝架為遮風結構，所以電機的溫升對泵幾乎沒有影響。(6)泵殼埋于地下，易于保冷.所以，石油液化氣用的低溫泵常用以上這種結構.2.低溫甲烷泵機械密封甲烷液化氣在-99℃時的蒸汽壓接近3MPa.乙烯裝置脫甲烷塔底泵在-53℃時出口壓力近似3MPa，采用雙端面串聯(lián)式機械密封，它是比拉公司BB81-K7+BB81B-S7型，尺寸為45x39與50x45(圖10-20)。耐腐蝕機械密封在腐蝕性介質中，機械密封的零件受到介質的強烈侵蝕，摩擦面同時受到.腐蝕和磨損，這種現(xiàn)象稱為“磨蝕“，其腐蝕速度約為無摩擦時的10~50倍.某些結構材料具有優(yōu)良的耐蝕性能，耐磨性能卻較差;而另一些結構材料雖具有良好的耐磨性，耐蝕性卻很差.因此，摩擦副應選擇既要耐腐蝕又要耐磨，輔助密封圈、彈擠和結構件也要有良好的耐蝕性能.在設計耐腐蝕機械密封時，一般采取以下一些措施:1.結構上的隔離措施采用外裝式結構，經過適當的選擇，外裝式密封可以做到無金屬件與工藝介質接觸，小的零件如彈簧、銷子可不受工藝介質腐蝕.外裝式有普通型機械密封和波紋管型機械密封兩種，’以波紋管型密封結構較好(圖10-21).如密封件材質耐蝕能力許可。濱海新區(qū)襄陽五二五泵用機械密封件選型。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="合肥管道泵用機械密封件,泵用機械密封件" src="https://tyunfile.71360.com/UploadFile/ygebgm/637330182097675781/701815.png"></div><p> 且接觸應力不均勻，使之產生機械變形；二是由于使用溫度較高（或過低），材料物理性能（主要是線膨脹系數）的差異使硬質合金環(huán)和環(huán)座的配合部位不能同步脹縮，過盈量發(fā)生變化，接觸應力也隨著發(fā)生變化，這種變化對密封環(huán)的使用產生影響。密封端面變形破壞了平面度，更有甚者喪失過盈，使聯(lián)接失效，硬質合金環(huán)熱裝式密封環(huán)目前有三種結構，圖23a是制造廠早期生產的，結構較為簡單。但是由于硬質合金環(huán)和輔助密封圈接觸，一旦硬質合金環(huán)松脫，運轉時輔助密封圈被嚴重磨損，會出現(xiàn)大量泄漏。而圖23b是在圖23a的基礎上改進的，輔助密封圈不和硬質合金環(huán)接觸，不存在上述缺陷，只是硬質合金環(huán)和環(huán)座之間有輕微泄漏。為了減少硬質合金環(huán)密封端面的不均勻變形，環(huán)座的熱裝部位內外設置環(huán)形槽（圖23c），使硬質合金環(huán)外圓柱面的接觸應力趨于均勻，以減少碳化鎢環(huán)的變形，使用效果較好。焊接的組合式密封環(huán)特點為克服熱裝式密封環(huán)松脫的缺陷，出現(xiàn)了焊接的密封環(huán)（圖24）。所用的硬質合金是以Cr3C2為硬質相、Ni為粘結相的燒結合金材料。耐腐蝕優(yōu)于YG6等硬質合金，高溫下具有優(yōu)異的抗氧化性能，在1000℃空氣中加熱2小時無任何變化。但是導熱性能較差，僅為YG6的1／3；線膨脹系數大。寶雞凝結水泵泵用機械密封件廠家。合肥管道泵用機械密封件</p><p style="text-indent:25px">南寧宙斯泵用機械密封件廠家。合肥管道泵用機械密封件</p><p> ***節(jié)機械密封原理機械密封是一種旋轉機械的軸封裝置。比如離心泵、離心機、反應釜和壓縮機等設備。由于傳動軸貫穿在設備內外，這樣，軸與設備之間存在一個圓周間隙，設備中的介質通過該間隙向外泄漏，如果設備內壓力低于大氣壓，則空氣向設備內泄漏，因此必須有一個阻止泄漏的軸封裝置。軸封的種類很多，由于機械密封具有泄漏量少和壽命長等優(yōu)點，所以當今世界上機械密封是這些設備主要的軸密封方式。機械密封又叫端面密封，在國家有關標準中是這樣定義的：“由至少一對垂直于旋轉軸線的端面在流體壓力和補償機構彈力（或磁力）的作用以及輔助密封的配合下保持貼合并相對滑動而構成的防止流體泄漏的裝置?！币弧C械密封的分類機械密封近年來發(fā)展很快，根據不同的工況出現(xiàn)了各種各樣的結構，但無論哪種結構都由以下四部分組成：一部分是由動環(huán)和靜環(huán)組成的密封端面，有時也稱為摩擦副。第二部分是由彈性元件為主要零件組成的緩沖補償機構，其作用是使密封端面緊密貼合。第三部分是輔助密封圈，其中有動環(huán)和靜環(huán)密封圈。第四部分是使動環(huán)隨軸旋轉的傳動機構。機械密封實現(xiàn)的原理如圖所示：軸通過傳動座（6）和推環(huán)（4），帶動動環(huán)（2）旋轉，靜環(huán)(1)固定不動。合肥管道泵用機械密封件</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2815961.html</p></div></div></div></div></div><div id="e3gnkcw" class="page-right twoColRt"><div id="is279fu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hlhjfmt" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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