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id="wpam8zf" 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>黑龍江福斯泵用機(jī)械密封廠家,泵用機(jī)械密封</p><p><span>***更新：</span>2021-01-15 03:11:06</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="eio7zgo" 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="bop2pry" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="twd37rs" class="box"><p><p> 石油化工流程泵大都選用內(nèi)流型機(jī)械密封，只有在壓力和溫度不高的腐蝕性介質(zhì)中才選用外流型機(jī)械密封。按補(bǔ)償機(jī)構(gòu)中彈簧的數(shù)量可分為多彈簧和單彈簧機(jī)械密封。補(bǔ)償機(jī)構(gòu)中有多個(gè)彈簧的密封稱為多彈簧機(jī)械密封（圖5）；補(bǔ)償機(jī)構(gòu)中只有一個(gè)彈簧的機(jī)械密封稱為單彈簧機(jī)械密封（圖6），多彈簧機(jī)械密封又稱小彈簧機(jī)械密封，這種結(jié)構(gòu)軸向尺寸較小，可用改變彈簧數(shù)量的方法改變彈性力，軸向力較均勻，適用于高速機(jī)械密封，在腐蝕性介質(zhì)中不宜采用。單彈簧機(jī)械密封又稱大彈簧機(jī)械密封，密封結(jié)構(gòu)較為簡單。有的密封型式還用彈簧傳遞扭矩。國產(chǎn)密封應(yīng)用大彈簧較多，但不能用于高速。圖5多彈簧機(jī)械密封圖6單彈簧機(jī)械密封補(bǔ)償機(jī)構(gòu)的作用是使密封端面緊密貼合，為達(dá)到此目的，采用的方法有兩種，一是彈性力，二是磁力。只有在系統(tǒng)內(nèi)壓力較低時(shí)采用磁力機(jī)械密封（圖7），大多數(shù)都用前者。除了用彈簧形成彈性力外還有用波紋管的，稱為波紋管式機(jī)械密封。波紋管的材料可用橡膠、聚四氟乙烯和焊接的金屬薄片（圖8）等，黑龍江福斯泵用機(jī)械密封廠家。（圖8）根據(jù)密封面上介質(zhì)載荷的作用情況可分為平衡型和非平衡型密封（圖9），黑龍江福斯泵用機(jī)械密封廠家。非平衡型：載荷系數(shù)k≥1的密封稱為非平衡型密封，黑龍江福斯泵用機(jī)械密封廠家，換言之。貴陽福斯泵用機(jī)械密封廠家。黑龍江福斯泵用機(jī)械密封廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江福斯泵用機(jī)械密封廠家,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990601464844/125984.png"></div><p> 由于填充物被密封介質(zhì)腐蝕而產(chǎn)生泄漏的現(xiàn)象在化工行業(yè)的用泵中也時(shí)有發(fā)生，因此對填充物的選擇也是密封考慮的因素之一。螺旋密封螺旋密封也是動力密封的一種形式，它是在旋轉(zhuǎn)的軸上或者在軸的包容套上加工出螺旋槽，軸和套之間充有密封介質(zhì)。軸的旋轉(zhuǎn)使螺旋槽產(chǎn)生類似于泵的輸送作用，從而阻止密封液的泄漏。其密封能力的大小與螺旋角度、螺距、齒寬、齒高、齒的作用長度以及軸與套之間的間隙大小有關(guān)。由于密封之間不發(fā)生磨擦，因而壽命長，但由于結(jié)構(gòu)空間的限制，其螺旋長度一般較短，因而其密封能力也受到局限。在泵降速使用時(shí)，其密封效果則會大打折扣。迷宮密封在設(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：1、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，明顯的螺旋狀車刀痕在有些情況下也加大了泄漏趨勢。2、軸承室內(nèi)潤滑油注入量太多，其溢出壓力超過了密封阻力。3、油窗或油位計(jì)安裝位置有誤，誤導(dǎo)了人們對油室內(nèi)潤滑油量的正確判斷。4、運(yùn)轉(zhuǎn)中油溫的升高使其粘度降低，增加了泄漏的可能。5、回油槽或回油孔尺寸偏小，或受到其它障礙。黑龍江福斯泵用機(jī)械密封廠家福建格蘭富泵用機(jī)械密封型號。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江福斯泵用機(jī)械密封廠家,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990431757812/1137250.png"></div><p> 因此必然存在磨擦和磨損問題。而磨擦和磨損的大小，主要決定于填料壓蓋的壓緊力。壓力大可提高密封效果，但卻會加大動力消耗和軸套的磨損，反之則會產(chǎn)生較大泄漏。因此應(yīng)根據(jù)泄漏量大小和泄漏介質(zhì)的溫度對壓蓋的壓緊力進(jìn)行調(diào)整，必要時(shí)應(yīng)對填料進(jìn)行更換或補(bǔ)充。填料密封的合理泄漏一般為10-20ml/min。當(dāng)從外界引入液體時(shí)，應(yīng)保證這種液體有良好的化學(xué)穩(wěn)定性，既不污染泵所輸送的介質(zhì)，又不與介質(zhì)發(fā)生反應(yīng)產(chǎn)生沉淀物和固體微粒，還應(yīng)與填料有良好的浸漬性和持久的保持性，這樣就能起到良好和持久的密封效果。動力密封副葉輪加停車密封泵在運(yùn)轉(zhuǎn)時(shí)，副葉輪所產(chǎn)生的壓頭平衡了主葉輪出口高壓液體，從而實(shí)現(xiàn)密封。停車時(shí)，副葉輪不起作用，因此必須同時(shí)配備停車密封裝置解決停車時(shí)可能產(chǎn)生的泄漏。副葉輪密封結(jié)構(gòu)簡單、密封可靠、使用壽命長，運(yùn)轉(zhuǎn)中可實(shí)現(xiàn)滴水不漏，因此在輸送含雜質(zhì)介質(zhì)的泵上經(jīng)常采用。副葉輪良好的密封效果是有條件的，即工作壓力不允許超過允許的工作壓力。一旦超過，會產(chǎn)生嚴(yán)重的泄漏。工作壓力變化的主要原因是泵吸入口的壓力變化，因此采用副葉輪密封的泵，必須對泵的進(jìn)口壓力做出嚴(yán)格的規(guī)定，否則密封便會失效。由于停車密封的形式很多。</p><p> 也稱平直度）是密封環(huán)很重要的一個(gè)質(zhì)量指標(biāo)，要求在0．0009mm以內(nèi)，這樣的數(shù)量級用普通的量具是無法測量的。既準(zhǔn)確又迅速的方法是用光干涉法。它需要一個(gè)光學(xué)平晶和單色光源，一般用鈉光燈。檢測時(shí)，將平晶放到被檢的密封端面上，斜上方用鈉光燈照射（圖15）檢查干涉條紋的數(shù)量。鈉光的波長為0．6μm，每個(gè)干涉條紋為半個(gè)波長，即一條干涉條紋為0．3μm，由干涉條紋的數(shù)量即可確定密封端面的平面度。確定干涉條紋的數(shù)量：密封端面的平面度不同，條紋的種類也不同。圖16表示了幾種平面度合格的圖像，至于不合格的圖像各式各樣未予繪出。圖16a是平直的條紋，表明密封端面的平面度接近光學(xué)平晶的平面度，這種平面度高；圖16b是彎曲的條紋，干涉條紋數(shù)在一條以內(nèi)，即小于μm；圖16c也是彎曲的條紋，干涉條紋數(shù)二條，平面度在μm以內(nèi)；圖16d是同心圓狀的干涉條紋，如果是從平板研磨后取下來檢驗(yàn)平面度，這說明端面的內(nèi)緣高，外緣低，同心圓數(shù)量越多，其內(nèi)外緣高低差別越大。出面同心圓的條紋不要超過2個(gè)。六、動環(huán)和靜環(huán)動環(huán)可分為非補(bǔ)償型和補(bǔ)償型兩種。在靜止型機(jī)械密封中，采用非補(bǔ)償型動環(huán)，固在軸上，有的用軸套壓緊在軸上（圖3）。補(bǔ)償型動環(huán)用于旋轉(zhuǎn)型機(jī)械密封中。山西飛力泵用機(jī)械密封型號。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江福斯泵用機(jī)械密封廠家,泵用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637324990541582031/8933132.png"></div><p> 機(jī)械密封定義：靠一對或數(shù)對垂直于軸作相對滑動的端面在流體壓力和補(bǔ)償機(jī)構(gòu)的彈力（或磁力）作用下保持貼合并配以輔助密封而達(dá)到阻漏的軸封裝置。機(jī)械密封組成部分：由靜止環(huán)（靜環(huán)）、旋轉(zhuǎn)環(huán)（動環(huán)）、彈性元件、彈簧座、緊定螺釘、旋轉(zhuǎn)環(huán)輔助密封圈和靜止環(huán)輔助密封圈等元件組成，防轉(zhuǎn)銷固定在壓蓋上以防止靜止環(huán)轉(zhuǎn)動。旋轉(zhuǎn)環(huán)和靜止環(huán)往往還可根據(jù)它們是否具有軸向補(bǔ)償能力而稱為補(bǔ)償環(huán)或非補(bǔ)償還。看到這里是不是一頭霧水？不要緊，小編這里有生動形象的圖！不平衡型單端面機(jī)械密封不平衡型雙端面機(jī)械密封再來一張?jiān)敿?xì)的介紹圖！機(jī)械密封結(jié)構(gòu)圖密封部位圖密封介紹完了，接下來看看密封失效都會在哪些地方發(fā)生。機(jī)械密封的泄漏點(diǎn)基本上都表現(xiàn)在6處:①動、靜環(huán)端面處;②靜環(huán)與靜環(huán)盒的輔助密封處;③靜環(huán)壓蓋與離心泵泵體之間的密封處;④動環(huán)鑲嵌結(jié)構(gòu)配合處；⑤軸套與泵軸之間的密封處;⑥動環(huán)與軸套的輔助密封處;注：⑤和⑥只有在安裝軸套時(shí)才存在。機(jī)械密封三維剖面圖機(jī)械密封實(shí)物圖順便再給大家拓展一下金屬波紋管機(jī)械密封。金屬波紋管機(jī)械密封為單端面、平衡型、任意旋向金屬波紋管式密封。它的補(bǔ)償機(jī)構(gòu)為波紋管，密封環(huán)(動環(huán)或靜環(huán))和波紋管制成一個(gè)整體。天津格蘭富泵用機(jī)械密封型號。黑龍江福斯泵用機(jī)械密封廠家</p><p style="text-indent:25px">榆林循環(huán)泵用機(jī)械密封選型。黑龍江福斯泵用機(jī)械密封廠家</p><p> 輔助密封圈是機(jī)械密封上**薄弱環(huán)節(jié)，當(dāng)溫度超過80℃時(shí)普通橡膠已不適用，溫度超過230~250℃，聚四氟乙烯也不能使用.此外，由于高溫、易燃介質(zhì)的裂解物沉積會使彈簧阻塞.所以，當(dāng)溫度超過220℃時(shí)就應(yīng)采用金屬波紋管型機(jī)械密封，或者采用金屬波紋管與普通機(jī)械密封相結(jié)合的密封結(jié)構(gòu).3.采取冷卻措施在高溫下，為了使密封可靠運(yùn)行，盡可能對機(jī)械密封進(jìn)行冷卻，要避免在干摩擦狀態(tài)下工作.必須保持密封間隙中的溫度在密封液的汽化溫度以下.冷卻措施就是對密封進(jìn)行溫度控制，常用的溫度控制有沖洗、阻封、加強(qiáng)液體循環(huán)等(詳見第七章***節(jié)溫度控制裝置)。在高溫下，還可采用以下措施:(1)用Diphy1(二苯及二苯氧化物的混合物)作為阻封液，它是冷態(tài)無壓的換熱劑(阻封液由泵效螺旋輸送);(2)在超高溫下或者沒有適當(dāng)?shù)囊后w時(shí)，也可通人氮?dú)狻鍤?，以防止空氣引起的氧?4.鑲嵌摩擦副問題密封環(huán)鑲嵌是充分利用端面材料和基體材料的特性，提高材料使用價(jià)值，一般對高溫密封采用熱鑲法.但是，由于端面耐磨材料和基體材料的熱脹系數(shù)有差異，在高溫下使用時(shí)會產(chǎn)生摩擦環(huán)松動、脫落。因此，對鑲嵌結(jié)構(gòu)的摩擦環(huán)采用的溫度應(yīng)予以特別注意.熱鑲結(jié)構(gòu)產(chǎn)生松動、脫落的原因，除了與使用溫度有關(guān)外。黑龍江福斯泵用機(jī)械密封廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2850997.html</p></div></div></div></div></div><div id="nlmtf2p" class="page-right twoColRt"><div id="8uf7ypg" class="box01 margin10 clearfix"><h3><a 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