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clearfix"><h1>麗水重型機(jī)械密封批發(fā)價(jià) 服務(wù)至上漣水創(chuàng)密機(jī)械供應(yīng)</h1><div id="ud38xxz" class="proBig"><div id="qjdzq7z" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637245509697412109/7788084.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7jkmnmi" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637245509697412109/7788084.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xvctkr2" 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>麗水重型機(jī)械密封批發(fā)價(jià)</p><p><span>***更新：</span>2020-06-04 08:19:24</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="7ulcjac" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="32sofht" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ky8alxj" class="box"><p><p> 船用泵是指艦船上用以增加液體和液體物料的壓力或位能使之流動(dòng)的機(jī)械。輸送液體至位置較高、距離較遠(yuǎn)、壓力較高處一般必須用泵，泵還能用于產(chǎn)生高壓液體供液壓傳動(dòng)用。 </p> <p> <p> 泵用機(jī)械密封種類(lèi)繁多，型號(hào)各異，麗水重型機(jī)械密封批發(fā)價(jià)，但泄漏點(diǎn)主要有五處： </p> <p> ● 軸套與軸間的密封； </p> <p> ● 動(dòng)環(huán)與軸套間的密封； </p> <p> ● 動(dòng)、靜環(huán)間密封； </p> <p> ● 對(duì)靜環(huán)與靜環(huán)座間的密封； </p> <p> ● 密封端蓋與泵體間的密封。 </p> <p> 安裝靜試時(shí)泄漏 </p> <p> 機(jī)械密封安裝調(diào)試好后，一般要進(jìn)行靜試，觀察泄漏量。如泄漏量較小，多為動(dòng)環(huán)或靜環(huán)密封圈存在問(wèn)題；泄漏量較大時(shí)，則表明動(dòng)、靜環(huán)摩擦副間存在問(wèn)題。 </p> <p> 在初步觀察泄漏量、判斷泄漏部位的基礎(chǔ)上，麗水重型機(jī)械密封批發(fā)價(jià)，再手動(dòng)盤(pán)車(chē)觀察，若泄漏量無(wú)明顯變化則靜，麗水重型機(jī)械密封批發(fā)價(jià)、動(dòng)環(huán)密封圈有問(wèn)題；如盤(pán)車(chē)時(shí)泄漏量有明顯變化則可斷定是動(dòng)、靜環(huán)摩擦副存在問(wèn)題；此外，泄漏通道也可同時(shí)存在，但一般有主次區(qū)別，只要觀察細(xì)致，熟悉結(jié)構(gòu)，一定能正確判斷。 </p> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="麗水重型機(jī)械密封批發(fā)價(jià)" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245509697412109/7788084.jpg"></div><p> 水泵的機(jī)械密封亦稱(chēng)端面密封,其有一對(duì)垂直于旋轉(zhuǎn)軸線(xiàn)的端面,該端面在流體壓力及補(bǔ)償機(jī)械外彈力的作用下,依賴(lài)輔助密封的配合與另一端保持貼合,并相對(duì)滑動(dòng),從而防止流體泄漏。 </p> <p> <p> 一、機(jī)械密封常見(jiàn)的滲漏現(xiàn)象 </p> <p> 機(jī)械密封滲漏的比例占全部維修泵的50 %以上,機(jī)械密封的運(yùn)行好壞直接影響到水泵的正常運(yùn)行,現(xiàn)總結(jié)分析如下: </p> <p> 1.機(jī)械密封周期性滲漏 </p> <p> (1)防爆自吸泵轉(zhuǎn)子軸向竄動(dòng)量大,輔助密封與軸的過(guò)盈量大,動(dòng)環(huán)不能在軸上靈活移動(dòng)。在泵翻轉(zhuǎn),動(dòng)、靜環(huán)磨損后,得不到補(bǔ)償位移。 </p> <p> 對(duì)策:在裝配機(jī)械密封時(shí),軸的軸向竄動(dòng)量應(yīng)小于0.1mm ,輔助密封與軸的過(guò)盈量應(yīng)適中,在保證徑向密封的同時(shí),動(dòng)環(huán)裝配后保證能在軸上靈活移動(dòng)(把動(dòng)環(huán)壓向彈簧能自由地彈回來(lái))。 </p> <p> (2)密封面潤(rùn)滑油量不足引起干摩擦或拉毛密封端面。 </p> <p> 對(duì)策:油室腔內(nèi)潤(rùn)滑油面高度應(yīng)加到高于動(dòng)、靜環(huán)密封面。 </p> <p> (3)轉(zhuǎn)子周期性振動(dòng)。原因是定子與上、下端蓋未對(duì)中或葉輪和主軸不平衡,汽蝕或軸承損壞(磨損) ,這種情況會(huì)縮短密封壽命和產(chǎn)生滲漏。 </p> <p> 對(duì)策:可根據(jù)維修標(biāo)準(zhǔn)來(lái)糾正上述問(wèn)題。 </p> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="麗水重型機(jī)械密封批發(fā)價(jià)" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245510567929687/2051487.jpg"></div><p> 3化學(xué)腐蝕由于密封接觸腐蝕性介質(zhì)就會(huì)產(chǎn)生表面腐蝕，甚至在表面各處產(chǎn)生劇烈腐蝕點(diǎn)而形成點(diǎn)蝕。在金屬的晶界上產(chǎn)生的晶間腐蝕，會(huì)深入到金屬的內(nèi)部，并進(jìn)一步破壞而引起斷裂。腐蝕的性能影響很大。由于密封件比主機(jī)的零件小，而且更精密，通常要選用比主機(jī)更耐腐蝕的材料。經(jīng)驗(yàn)表明，壓力、溫度和滑動(dòng)速度都能使腐蝕加速。密封件的腐蝕率隨溫度升高呈指標(biāo)規(guī)律增加。處理強(qiáng)腐蝕流體時(shí)，采用雙端面密封，可以比較大限度減輕腐蝕對(duì)密封件的影響，因?yàn)樗c工藝流體相接觸的零件數(shù)量少。這也是在強(qiáng)腐蝕條件下，選擇密封結(jié)構(gòu)的一條**重要的原則。密封零件失效機(jī)械密封零件失效大部分是輔助密封圈失效，機(jī)械密封由于泄漏而不能正常工作的一個(gè)主要原因也是因?yàn)镺形圈失效引起的。O形圈失效的表現(xiàn)為老化、長(zhǎng)久性變形、溶脹變形、扭曲及擠出損傷。因此，在選用O形圈時(shí)應(yīng)考慮合成橡膠的安全使用溫度，盡可能地選用截面較大的橡膠O形圈，適當(dāng)提高硬度，采用溝槽式的裝配結(jié)構(gòu)，通過(guò)沉浸試驗(yàn)合理選材，必要時(shí)選用復(fù)合材料，如橡膠包覆聚四氟乙烯密封圈。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="麗水重型機(jī)械密封批發(fā)價(jià)" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245502694208984/642654.jpg"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/142314.html</p></div></div></div></div></div><div id="ex883gd" 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