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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>蘇州多級(jí)泵密封可定制企業(yè),封</p><p><span>***更新：</span>2020-11-02 06:15:33</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="8gik8gr" 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: </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)民營經(jīng)濟(jì)產(chǎn)業(yè)園</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="jnprj2l" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="w3qmol7" class="box"><p><p> 泵用機(jī)械密封是精密的部件，制造精度及安裝精度要求都很嚴(yán)格，如果裝配不當(dāng)就會(huì)影響密封性能，要正確安裝必須注意以下幾點(diǎn)： </p> <p> 泵用機(jī)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(zhì)，直接沖洗密封端面，然后進(jìn)入泵腔內(nèi)，通過介質(zhì)的不斷循環(huán)，將磨擦端面的的磨擦熱帶走達(dá)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(chǔ)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(dāng)密封介質(zhì)溫度＞150℃時(shí)除了在冷卻水套中通過冷卻水及靜環(huán)背部冷卻外，應(yīng)采取強(qiáng)制冷卻措施。即從泵出口的干凈介質(zhì)應(yīng)預(yù)先經(jīng)熱交換器冷卻至50℃時(shí)，蘇州多級(jí)泵密封可定制企業(yè)。再進(jìn)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(zhì)中含有顆?；螂s質(zhì)，蘇州多級(jí)泵密封可定制企業(yè)，蘇州多級(jí)泵密封可定制企業(yè)，必須采用過濾措施，把常溫干凈沖洗液輸入密封腔內(nèi)。 O形密封圈雖然密封可靠，但如果不注意使用條件，也會(huì)發(fā)生泄漏。蘇州多級(jí)泵密封可定制企業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州多級(jí)泵密封可定制企業(yè),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247297555068359/2614045.jpg"></div><p> 有害介質(zhì)時(shí)為了取得更好的密封效果，采用雙重密封，根據(jù)密封液系統(tǒng)壓力可分為有壓雙封(雙端面機(jī)械密封)和無壓雙封(串聯(lián)式機(jī)械密封)。 </p> <p> 有壓雙封密封液系統(tǒng)的壓力一般要比一級(jí)密封前的壓力高0.01-0.03MPa。這樣一級(jí)密封泄漏時(shí)，密封液會(huì)進(jìn)入泵內(nèi)，確保了泵內(nèi)介質(zhì)不會(huì)泄漏到外界。由于密封液進(jìn)入泵內(nèi)，密封液系統(tǒng)壓力、液位降低，可以實(shí)現(xiàn)密封的泄漏監(jiān)測(cè)和報(bào)警。 </p> <p> 無壓雙封密封系統(tǒng)內(nèi)的壓力一般為常壓或微壓，低于一級(jí)密封前的密封腔壓力。當(dāng)一級(jí)密封泄漏時(shí)，泵內(nèi)介質(zhì)會(huì)進(jìn)人密封液系統(tǒng)，導(dǎo)致密封液系統(tǒng)的壓力和液位升高，可以通過壓力開關(guān)或液位開關(guān)實(shí)現(xiàn)泄露監(jiān)測(cè)和報(bào)警。通過密封液系統(tǒng)來監(jiān)測(cè)雙端面機(jī)械密封失效與否，也是其區(qū)別于單端面機(jī)械密封**主要的形式之一。 </p> <p> <br /> 蘇州污水密封規(guī)格型號(hào)隨著機(jī)械密封在機(jī)泵中的使用越來越多，使用要求也越來越高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州多級(jí)泵密封可定制企業(yè),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg"></div><p> 化工泵(不銹鋼材質(zhì))用于石油，化工，冶金，合成纖維，制藥，食品，合成纖維等部門用于輸送堿性腐蝕介質(zhì)；化工泵(氟塑料材質(zhì))使用于輸送任何酸性，堿性腐蝕性介質(zhì)；化工泵(鑄鐵材質(zhì))用于工業(yè)，城市給水，排水，亦可用于農(nóng)田，果園排灌，供輸送清水或物理及化學(xué)性質(zhì)類似清水的其他液體之用?；け妹芊庑问街饕?油封密封，墊片密封，螺紋密封，迷宮密封，填料密封和動(dòng)力密封。 </p> <p> 化工泵在與運(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)生的化工泵泄漏。副葉輪密封結(jié)構(gòu)簡(jiǎn)單，密封可靠，使用壽命長(zhǎng)，化工泵運(yùn)轉(zhuǎn)中可實(shí)現(xiàn)滴水不漏，因此在化工泵輸送含雜質(zhì)介質(zhì)的泵上經(jīng)常采用。 </p><p> 低溫下的機(jī)械密封 </p> <p> 在煉油化工裝置中，低溫輸送的介質(zhì)一般都具有豁度小、潤滑性差、容易氣化的特點(diǎn)，而且介質(zhì)在氣化時(shí)大量吸熱，使周圍溫度急劇下降，造成空氣中水氣的凝結(jié)，導(dǎo)致端面及其周圍結(jié)冰，使端面貼合不嚴(yán)引起泄漏。同時(shí)，因潤滑性差，端面摩擦產(chǎn)生的熱量較多，若不能及時(shí)轉(zhuǎn)移，必然會(huì)加劇端面處的氣化，造成惡性循環(huán)，加速密封面的早期失效。另外，低溫密封的輔助密封圈在低溫下發(fā)硬失彈也容易導(dǎo)致泄漏。 </p> <p> <span style="font-size:12px;">對(duì)低溫密封，除了選擇合適的輔助密封圈材質(zhì)外，還要注意以下幾點(diǎn)。</span> </p> <p> 改進(jìn)密封結(jié)構(gòu)及正確選擇摩擦副材料。實(shí)踐證明，在靜環(huán)表面開圓弧形凹槽可形成流體動(dòng)力密封，增加流體膜承載能力，改善端面潤滑條件，有效延長(zhǎng)機(jī)封工作壽命。在端面配對(duì)方面，碳化鎢一M106K石墨組對(duì)（即動(dòng)、靜環(huán)材料）一般要優(yōu)于其他材料，因?yàn)槠錆櫥院?，摩擦系?shù)低，導(dǎo)熱性也比較好。 </p> <p> 選擇合適的端面比壓。低溫密封由于端面潤滑性差，容易發(fā)生氣化、結(jié)冰，所以在保證密封可靠的前提下，端面比壓可適當(dāng)減小。一般機(jī)械密封比壓值推薦為0.29-0.59MPa，對(duì)低溫密封可取其下限。對(duì)金屬波紋管機(jī)械密封，由于動(dòng)環(huán)沒有軸向摩擦，端面比壓甚至可以低于下限。 </p> <p> <br /> 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="蘇州多級(jí)泵密封可定制企業(yè),封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293380048828/7808572.jpg"></div><p> 高溫?zé)嵊捅弥饕谐５妆?、減底泵、催化油漿泵，該類泵的特點(diǎn)是溫度高（370℃-400℃）、油品粘度大、塔底有雜質(zhì)。我們針對(duì)高溫泵的這些特點(diǎn)采用的是YH-609系列機(jī)械密封, 結(jié)構(gòu)選型主要結(jié)合了以下幾個(gè)方面: </p> <p> 金屬波紋管旋轉(zhuǎn)結(jié)構(gòu) </p> <p> 旋轉(zhuǎn)波紋管密封在旋轉(zhuǎn)離心力作用下可以自身清洗波紋管，減少波紋管**沉積和內(nèi)側(cè)結(jié)焦，并能防止因急冷造成的波紋管變形。泵類設(shè)備轉(zhuǎn)速一般為2950r/min，機(jī)械密封線速度遠(yuǎn)小于25m/s,因此，可以選用旋轉(zhuǎn)結(jié)構(gòu)。 </p> <p> 密封結(jié)構(gòu)形式采用開槽斜面擠緊軸套 </p> <p> 這種定位傳動(dòng)可靠，安裝拆卸方便且不傷軸。并設(shè)置有限位板，便于泵外調(diào)整密封的壓縮量。波紋管內(nèi)徑一處設(shè)一45℃斜角，以分散應(yīng)力，延長(zhǎng)波紋管壽命。輔助密封采用柔性石墨替代合成橡膠，可以承受高達(dá)425℃的高溫。 </p> <p> 摩擦副材料的選取 </p> <p> 對(duì)摩擦副材料的選取我們采用“硬對(duì)硬”結(jié)構(gòu)，起初動(dòng)靜環(huán)我們選擇了SiC-WC，但是運(yùn)轉(zhuǎn)一段時(shí)間發(fā)現(xiàn)動(dòng)環(huán)出現(xiàn)肯邊現(xiàn)象。改用YG6-YG6之后，設(shè)備運(yùn)轉(zhuǎn)一直正常。 </p> <p> <br /> 泵在停一段時(shí)間后再啟動(dòng)時(shí)泄漏，因?yàn)槟Σ粮备浇橘|(zhì)的凝固、結(jié)晶，摩擦副上有水垢、彈簧腐蝕、阻塞而失彈。蘇州多級(jí)泵密封可定制企業(yè)</p><p style="text-indent:25px">與密封件相對(duì)滑動(dòng)零件的幾何位置精度(同心度)高材質(zhì)好(如鍍硬鉻)和表面粗糙度較細(xì)可延長(zhǎng)使用壽命。蘇州多級(jí)泵密封可定制企業(yè)</p><p> 為了充分發(fā)揮油封的功能，必須根據(jù)使用條件選定**合適的型式與材料。這里就主要的影響因素作一簡(jiǎn)述。 </p> <p> <span style="font-size:12px;">軸的表面線速度：在同一直徑條件下，不同材料制造的油封，適應(yīng)軸面旋轉(zhuǎn)線速度的能力不同，其關(guān)系如下圖所示。油封使用的線速度范圍一般小于15m/s, 滿意的潤滑和良好的散熱條件才是決定性因素。相應(yīng)較低的數(shù)據(jù)，適用于更為苛刻的條件。 </span> </p> <p> <span style="font-size:12px;">溫度：由于旋轉(zhuǎn)軸表面與油封的密封唇部產(chǎn)生摩擦，所以密封唇口部的溫度高于油液中的溫度，一般油封工作時(shí)其唇緣的溫度高于工作介質(zhì)溫度20~50℃。隨著轉(zhuǎn)速增高，壓力增加密封唇口處的溫度也隨之上升。另外，帶有防塵唇的油封，比無防塵唇的油封會(huì)出現(xiàn)高于20℃的過高溫度。當(dāng)超過容許溫度時(shí)會(huì)縮短油封的工作壽命，造成密封唇過早長(zhǎng)久性硬化，以及磨損加大。油封的工作溫度范圍與油封使用的材料有關(guān)：材料為丁晴橡膠（NBR）時(shí)為-40~120℃，亞力克橡膠（ACM）-30~180℃，氟橡膠（FPM）-25~300℃。</span> </p> <p> <span style="font-size:12px;">壓力：油封主要用于無壓或者在微壓的條件下使用，比較大工作壓力0.02～0.05Mpa。當(dāng)工作壓力超過這個(gè)值時(shí)應(yīng)選用耐壓型油封。</span> </p> <p> <br /> 蘇州多級(jí)泵密封可定制企業(yè)</p><p style="text-indent:25px">漣水創(chuàng)密機(jī)械制造有限公司位于江蘇省淮安市漣水縣高溝鎮(zhèn)高揚(yáng)民營經(jīng)濟(jì)產(chǎn)業(yè)園。創(chuàng)密機(jī)械制造致力于為客戶提供良好的輕型密封，中型密封，重型密封，小型水泵，一切以用戶需求為中心，深受廣大客戶的歡迎。公司秉持誠信為本的經(jīng)營理念，在機(jī)械及行業(yè)設(shè)備深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造機(jī)械及行業(yè)設(shè)備良好品牌。創(chuàng)密機(jī)械制造立足于全國市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1809779.html</p></div></div></div></div></div><div id="8wyf8l2" class="page-right twoColRt"><div id="mvsp2au" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3if887r" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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