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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>浙江污水密封市場(chǎng)批發(fā)價(jià)格,封</p><p><span>***更新：</span>2021-01-08 09:10:16</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ir2giz3" 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(yíng)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="yubdubi" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="299gseg" class="box"><p><p> <br /> </p> <p> 化工泵油封是一種自緊式唇狀密封，其結(jié)構(gòu)簡(jiǎn)單，尺寸小，成本低廉，維護(hù)方便，阻轉(zhuǎn)矩較小，既能防止介質(zhì)泄漏，也能防止外部塵土和其它有害物質(zhì)侵入，而且對(duì)磨損有一定的補(bǔ)償能力，但不耐高壓，所以一般用在低壓場(chǎng)合的化工泵上。 </p> <p> 化工泵依靠離心原理來抽取液體物料，特殊材料制成的化工泵適用于瓶、桶、缸、池或其他容器中抽取腐蝕性液體。由于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，要比其他種類的泵高很多。 </p> <p> 化工泵油封應(yīng)安裝在制造精度為h8～h9，表面粗糙度為1.6～0.8μm且經(jīng)過表面硬化處理的軸上。密封介質(zhì)不應(yīng)含有固體微粒和雜質(zhì)，否則會(huì)造成油封和軸的迅速磨損而使密封失效。 </p> <p> 在選擇此種密封方法是，要充分考慮化工泵所輸送到物料的性能和要求，浙江污水密封市場(chǎng)批發(fā)價(jià)格，以避免不必要的泄漏，防止意外的發(fā)生，浙江污水密封市場(chǎng)批發(fā)價(jià)格。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 在密封面處由于干摩擦、冷卻水突然中斷，浙江污水密封市場(chǎng)批發(fā)價(jià)格，雜質(zhì)進(jìn)入密封面、抽空等情況下，都會(huì)導(dǎo)致環(huán)面出現(xiàn)徑向裂紋。浙江污水密封市場(chǎng)批發(fā)價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江污水密封市場(chǎng)批發(fā)價(jià)格,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503105126953/1175882.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> 江蘇葉輪泵密封哪家比較好O形密封圈安裝在溝槽和被密封面之間，有一定壓縮量，產(chǎn)生的反彈力給予光滑面和溝槽底面初始的壓縮應(yīng)力。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江污水密封市場(chǎng)批發(fā)價(jià)格,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg"></div><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120℃，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)域越來越多次，所輸送介質(zhì)種類也越來越多，因此在選用墊片材質(zhì)時(shí)應(yīng)查閱相關(guān)資料或通過實(shí)驗(yàn)后再做出正確選擇。 </p> <p> <br /> </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(rùn)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 /> 熱裂是高溫油泵，如油渣泵、回?zé)捰捅谩⒊p壓塔底泵等**常見的失效現(xiàn)象。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江污水密封市場(chǎng)批發(fā)價(jià)格,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298675996094/8215396.jpg"></div><p> 機(jī)械密封的密封環(huán)之間應(yīng)有一層液體薄膜，具有下列三個(gè)作用： </p> <p> 支持密封受到的大部分水壓負(fù)荷。 </p> <p> 作為潤(rùn)滑劑，減少密封環(huán)生成的摩擦熱。 </p> <p> 使粗糙接觸**小化，從而降低磨損率。 </p> <p> 作為傳熱介質(zhì)，轉(zhuǎn)移密封環(huán)直接區(qū)域的熱能。 </p> <p> 首先我們要研究密封失效的原因，根據(jù)我的經(jīng)驗(yàn)，有如下： </p> <p> 生產(chǎn)上的缺點(diǎn)； </p> <p> 設(shè)計(jì)上的缺點(diǎn)； </p> <p> 缺少培訓(xùn)/技術(shù)； </p> <p> 在我們拆卸機(jī)械密封的之前，我們先要想好以下幾點(diǎn)： </p> <p> 主要的泄漏在哪里? </p> <p> 在外部件上是否有碎片？ </p> <p> 是否觀察到軸或旋轉(zhuǎn)的密封部件有偏心現(xiàn)象？ </p> <p> 有否與系統(tǒng)相關(guān)的震動(dòng)/噪音（如氣穴，接合錯(cuò)位）？ </p> <p> 在“泵”或密封是否存在局部的熱生成？ </p> <p> 在不同的情況下泄漏是否是間歇的，如在不同的溫度下？ </p> <p> 屬何種泄漏，噴射，小滴，水流或流往管道？ </p> <p> 軸承是否有軸向間隙？ </p> <p> 如果是雙端面密封，則檢查隔離液供應(yīng)是否完好。 </p> <p> 密封在軸上的相對(duì)位置？ </p> <p> <br /> 如果密封無法直接裝入到預(yù)定的位置，就需要對(duì)相關(guān)尺寸進(jìn)行調(diào)整，避免硬裝現(xiàn)象的發(fā)生。南京污水密封廠家直供</p><p style="text-indent:25px">密封常用名稱：密封圈、盤根、機(jī)械密封、油封、水封、盤根、密封墊板、密封膠、軟填料、液壓、氣動(dòng)密封件。浙江污水密封市場(chǎng)批發(fā)價(jià)格</p><p> 潛污泵的作用是將污水中的雜質(zhì)通過的方式處理。然后排放掉，與清水泵的不同之處使其技術(shù)要求也不同于普通類型的設(shè)備，它的設(shè)計(jì)需要考慮到效率、磨損以及特殊環(huán)境：（1）導(dǎo)板等部件自動(dòng)與著脫耦合，耦合牢固可靠。（2）引出電纜應(yīng)采用YZW和YCW型橡套電纜或性能相同的電纜，且電纜的密封需采用水密頭式密封，確保潛污泵在使用過程中不至于發(fā)生泄露。（3）葉輪：葉輪設(shè)計(jì)成無堵塞型式，葉輪皆經(jīng)過靜平衡試驗(yàn)。葉輪材質(zhì)為HT200, 符合GB9439-88的要求，過流表面光潔無粘砂、尖角、冷隔、氣孔、砂眼等缺點(diǎn)。（4）主軸材質(zhì)選用3Cr13經(jīng)調(diào)質(zhì)處理，有效地、可靠地傳遞動(dòng)力。主軸與葉輪用鍵連接，以傳遞動(dòng)力。主軸與葉輪用葉輪螺母鎖緊并有止退墊片，可防止水泵倒轉(zhuǎn)，造成葉輪松脫。（5）密封環(huán)：材質(zhì)鑄造青銅，防止因銹蝕而與葉輪咬死。設(shè)有密封環(huán)可更大限度地減少內(nèi)部泄露，提高水泵的效率。（6）機(jī)械密封：采用兩套單端面非平衡型機(jī)械密封。油腔和電機(jī)室之間的上部密封單元由陶瓷，石墨組成；泵殼和油腔之間的下部密封單元由碳化硅，碳化硅組成，以防接觸介質(zhì)。 </p> <p> <br /> 浙江污水密封市場(chǎng)批發(fā)價(jià)格</p><p> 淮安市漣水創(chuàng)密機(jī)械制造有限公司是一家專業(yè)從事機(jī)械密封產(chǎn)品的開發(fā)、制造、銷售與一體化的企業(yè)。企業(yè)擁有國(guó)內(nèi)前列的工藝、專業(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)以及用戶的特殊需求，生產(chǎn)質(zhì)量的機(jī)械密封產(chǎn)品，滿足了廣大用戶的需求。同時(shí)，企業(yè)致力于為用戶提供相關(guān)的技術(shù)咨詢，解決用戶使用中的疑難和關(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)用戶好評(píng)。 </p> <p> <span style="font-size:12px;"> 企業(yè)始終以用戶至上、***為起點(diǎn)，緊扣時(shí)代脈搏，抓發(fā)展機(jī)遇，已被諸多用戶認(rèn)定為質(zhì)量產(chǎn)品供應(yīng)商，是值得依賴的合作伙伴。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，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://m.cdcfah.com/cp/2757181.html</p></div></div></div></div></div><div id="8a7e8oa" class="page-right twoColRt"><div id="furdkws" 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