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src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503105126953/1175882.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cbikmyf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503105126953/1175882.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fewdk37" 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>江蘇水泵密封廠家,封</p><p><span>***更新：</span>2020-09-07 13:09:20</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="hlnfrdf" 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="b2lipwi" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="q3kr8np" class="box"><p><p> 機(jī)械密封的平衡對(duì)接觸面的密封壓力有很大影響。這一密封壓力取決于密封本身的有效截面以及填料盒內(nèi)的壓力。 </p> <p> 非平衡型密封的旋轉(zhuǎn)面相反一側(cè)的截面完全暴露于填料盒的壓力范圍之下，這種情況會(huì)使密封面之間產(chǎn)生很高的密封壓力，從而會(huì)使工作溫度提高，加快磨損速度。在高溫工作條件下或液體具有較大腐蝕性和磨擦性的情況下，會(huì)較大程度降低機(jī)械密封的使用壽命。 </p> <p> 對(duì)機(jī)械密封加以平衡，可降低密封壓力，延長(zhǎng)密封的使用壽命。一般采用帶有臺(tái)階的主軸和軸套，降低旋轉(zhuǎn)面的有效截面，就可達(dá)到上述目的。不過(guò)千萬(wàn)別將凈密封壓力調(diào)節(jié)到接近零的水平，因?yàn)檫@樣做的結(jié)果可能會(huì)造成密封面之間的工作狀況不穩(wěn)定，并可能會(huì)因突然的變故而將密封吹開(kāi)。 </p> <p> 解決這些密封問(wèn)題的答案也許是采用非平衡式密封，對(duì)于某些服務(wù)來(lái)說(shuō)，也許采用非平衡式密封能達(dá)到更好的效果。例如，在某些應(yīng)用領(lǐng)域，與密封的使用壽命相比，也許更強(qiáng)調(diào)對(duì)液體泄漏造成的安全性問(wèn)題。在這種情況下，對(duì)密封的選用也許可理解為更希望選擇具有較高的密封壓力。同樣，在選用較冷液體的密封時(shí)，操作溫度的增加也許是微不足道的，江蘇水泵密封廠家。 </p> <p> 不管出于何種考慮，當(dāng)填料盒的壓力超過(guò)50psi時(shí)，江蘇水泵密封廠家，一般推薦使用平衡式密封。影響密封的主要因素有哪些？密封本身質(zhì)量、工藝操作條件，江蘇水泵密封廠家、裝配安裝精度、主機(jī)本身精度、密封輔助系統(tǒng)。江蘇水泵密封廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇水泵密封廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503105126953/1175882.jpg"></div><p> 泵機(jī)械密封©水的故障是水泵故障中**容易出現(xiàn)的故障之一，所以水泵機(jī)械密封也屬于水泵部件中比較關(guān)鍵的易損件之一，水泵選型時(shí)機(jī)械密封材質(zhì)一定要能適合用戶輸送的液體介質(zhì)。 </p> <p> <p> 步驟/方法 </p> <p> 機(jī)械密封處滲©水的第一種可能性是機(jī)封的動(dòng)、靜環(huán)平面磨損。而造成機(jī)封的動(dòng)、靜環(huán)平面磨損的原因有六個(gè)方面：安裝過(guò)緊。觀察機(jī)械密封的動(dòng)靜環(huán)平面，如有嚴(yán)重?zé)宫F(xiàn)象，平面發(fā)黑和很深的痕跡，密封橡膠變硬，失去彈性，這種現(xiàn)象是由于安裝過(guò)緊造成的。處理辦法：調(diào)整安裝高度，葉輪安裝后，用螺絲刀拔動(dòng)彈簧，彈簧有較強(qiáng)的張力，松開(kāi)后即復(fù)λ，有2-4MM的移動(dòng)距離即可。安裝過(guò)松。觀察機(jī)封動(dòng)、靜環(huán)平面，其表面有一層很薄的水垢，能夠擦去，表面基本無(wú)磨損，這是彈簧失去彈性及裝配不良造成，或電機(jī)軸向竄動(dòng)造成。水質(zhì)差含顆粒。由于水質(zhì)差，含有小顆粒及介質(zhì)中鹽酸鹽含量高，形成磨料磨損機(jī)封的平面或拉傷表面產(chǎn)生溝槽、環(huán)溝等現(xiàn)象。處理辦法：改進(jìn)水壓或介質(zhì)，更換機(jī)封。缺水運(yùn)行造成干磨損壞。 </p> <p> <br /> </p> 江蘇單級(jí)泵密封廠軸彎曲變形時(shí)橫截面形心沿與軸線垂直方向的線位移稱為撓度，機(jī)械密封要求兩個(gè)密封端面之間受力均勻。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇水泵密封廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298412392578/7048929.jpg"></div><p> 機(jī)械密封在電廠水泵中的應(yīng)用改造 </p> <p> <p> 在新增的水泵中全部采用了機(jī)械密封，與原有水泵的盤根密封形成了鮮明的對(duì)比：（1）機(jī)械密封與盤根密封在密封性能上，機(jī)械密封要比盤根密封漏泄量小的多，*為盤根密封漏泄量的1%。（2）使用壽命長(zhǎng)，兩年以內(nèi)無(wú)需更換，以往盤根密封每60天左右就要進(jìn)行一次更換。（3）消耗功率較少同比盤根密封省電5%以上。（4）減少了軸或軸承的磨損。 </p> <p> 通過(guò)摸索對(duì)比先后將車間的兩臺(tái)循環(huán)水泵、兩臺(tái)射水泵、凝結(jié)水泵共6臺(tái)泵進(jìn)行了進(jìn)行密封改造。改造后均收到了良好的效果。 </p> <p> 循環(huán)水泵（20HBA）在未改為機(jī)械密封前，每年至少要更換4次油盤根，每次更換量在1公斤左右，市場(chǎng)價(jià)格30元.，由于盤根磨損所致3年左右需更換一根水泵軸及配套軸瓦，費(fèi)用在7000元左右，不計(jì)人工費(fèi)用每臺(tái)水泵每年消耗在2500元左右。而改為機(jī)械密封后費(fèi)用方面每臺(tái)泵的機(jī)械密封價(jià)格在600元左右，至少一個(gè)大修期在3年以上，由于摩擦阻力的降低使電耗每小時(shí)下降8度，全年節(jié)電在58000度，降低成本3萬(wàn)元左右。因此機(jī)械密封于盤根密封相比優(yōu)勢(shì)十分明顯。 </p> <p> <br /> </p> <p> <br /> </p> </p><p> 泵用機(jī)械密封種類繁多，型號(hào)各異，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> 現(xiàn)象:操作中密封發(fā)出爆裂聲（端面爆裂聲） </p> <p> 可能的原因:密封液在密封界面汽化加強(qiáng)密封面的冷卻 </p> <p> 解決方法:增加旁路沖洗管線（如果沒(méi)有的話）擴(kuò)大旁路沖洗管線和/或壓蓋上的開(kāi)孔。 </p> <p> 現(xiàn)象:密封連續(xù)滴漏 </p> <p> 可能的原因:表面不平;石墨密封面起泡;密封面產(chǎn)生熱變形 </p> <p> 解決方法:在安裝過(guò)程中，輔助密封被劃傷O形圈老化，由于壓縮形變輔助密封變硬變脆由于化學(xué)作用輔助密封變軟變粘 </p> <p> 現(xiàn)象:彈簧失效 </p> <p> 可能的原因:由于腐蝕作用，金屬附件損壞，傳動(dòng)機(jī)構(gòu)被腐蝕 </p> <p> 解決方法:檢查不正確的安裝尺寸,檢查是否采用了不合適的材料和密封類型改進(jìn)沖洗冷卻管線,檢查是否出現(xiàn)壓蓋螺栓扭矩過(guò)大導(dǎo)致壓蓋變形,檢查壓蓋墊片的比壓是否合適，檢查密封面間有無(wú)其他固體顆粒，如需要時(shí)對(duì)密封面重新拋光。檢查密封面處的裂紋，更換主、配合密封環(huán)。 </p> <p> 現(xiàn)象:操作過(guò)程中，密封發(fā)出尖嘯聲 </p> <p> 可能的原因:密封處的潤(rùn)滑液量不足 </p> <p> 解決方法:增加旁路沖洗管線（如果沒(méi)有的話）擴(kuò)大旁路沖洗管線和/或壓蓋上的開(kāi)孔。根據(jù)安裝密封的有效空間，確定采用多彈簧或單彈簧或波形彈簧，內(nèi)裝式或外裝式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇水泵密封廠家,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637245503162724609/640384.jpg"></div><p> <span style="font-size:12px;">安裝機(jī)械密封部位的軸（或軸套）的徑向跳動(dòng)公差比較大不超過(guò)0.04～0.06mm。</span> </p> <p> 轉(zhuǎn)子軸向竄動(dòng)不超過(guò)0.3mm。 </p> <p> <span style="font-size:12px;">密封腔體與密封端蓋結(jié)合的定位端面對(duì)軸（或軸套）表面的跳動(dòng)公差比較大不超過(guò)0.04～0.06mm。</span> </p> <p> <span style="font-size:12px;"> 密封件的確認(rèn)</span> </p> <p> 確認(rèn)所安裝的密封是否與要求的型號(hào)一致。 </p> <p> 安裝前要仔細(xì)地與總裝圖對(duì)照，零件數(shù)量是否齊全。 </p> <p> 采用并圈彈簧傳動(dòng)的機(jī)械密封，其彈簧有左、右旋之分，須按轉(zhuǎn)軸的旋向來(lái)選擇。 </p> <p> <span style="font-size:12px;"> 安裝</span> </p> <p> 安裝方法隨機(jī)械密封型式、機(jī)器的種類不同而有所不同，但其安裝要領(lǐng)幾乎都相同，安裝步驟和注意事項(xiàng)如下： </p> <p> <span style="font-size:12px;">安裝尺寸的確定</span> </p> <p> 安裝時(shí)，應(yīng)按產(chǎn)品的使用說(shuō)明書或樣本，保證機(jī)械密封的安裝尺寸。 </p> <p> <span style="font-size:12px;">裝入前，軸（軸套）、壓蓋應(yīng)無(wú)毛刺，軸承狀況良好；密封件、軸、密封腔、壓蓋都應(yīng)該清洗干凈。</span> </p> <p> 為減少摩擦阻力，軸上安裝機(jī)械密封的部位要薄薄地涂上一層油，以進(jìn)行潤(rùn)滑，考慮到橡膠O形圈的相溶性，若不宜用油，可涂肥皂水。浮裝式靜環(huán)不帶防轉(zhuǎn)銷的結(jié)構(gòu)，不宜涂油，應(yīng)干式裝入壓蓋。 </p> <p> <span style="font-size:12px;">先將靜環(huán)與壓蓋一起裝在軸上，注意不要與軸相碰，然后將動(dòng)環(huán)組件裝入。彈簧座或傳動(dòng)座的緊定螺釘應(yīng)分幾次均勻擰緊。</span> </p> <p> 在未固定壓蓋之前，用手推補(bǔ)償環(huán)作軸向壓縮，松開(kāi)后補(bǔ)償環(huán)能自動(dòng)彈回?zé)o卡滯現(xiàn)象，然后將壓蓋螺拴均勻地鎖緊。熱裂是高溫油泵，如油渣泵、回?zé)捰捅?、常減壓塔底泵等**常見(jiàn)的失效現(xiàn)象。江蘇單級(jí)泵密封廠</p><p style="text-indent:25px">因端面密封載荷的存在，在密封腔缺乏液體時(shí)啟動(dòng)泵而發(fā)生干摩擦。江蘇水泵密封廠家</p><p> 雙重密封和液體阻隔裝置 </p> <p> 采用雙重密封面的密封來(lái)代替單一的密封件具有更高程度的防漏特性。這類雙重密封大都應(yīng)用于揮發(fā)性強(qiáng)、危險(xiǎn)和潤(rùn)滑性很差的液體。 </p> <p> <span style="font-size:12px;"> 雙重密封一般有三種設(shè)計(jì)型式，每種型式都要求在雙重密封面之間使用一種液體阻隔系統(tǒng)，以防止液體或氣體外泄。比較常用的低成本雙重密封是一種以背靠背方式安裝的密封，其旋轉(zhuǎn)密封面以相反的方向排列。它往往需要一種阻隔液體，其壓力應(yīng)高于填料盒壓力，大約為20psi，這樣就可保證內(nèi)部的密封始終能得到阻隔液體的潤(rùn)滑，而且也可保證密封面達(dá)到一定的密封壓力。</span> 江蘇水泵密封廠家</p><p style="text-indent:25px">漣水創(chuàng)密機(jī)械制造有限公司主要經(jīng)營(yíng)范圍是機(jī)械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。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。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。創(chuàng)密機(jī)械制造憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來(lái)的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/1193535.html</p></div></div></div></div></div><div id="g773ry2" class="page-right twoColRt"><div id="oce2vce" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="eyfh7dp" class="recomPic likePro"><a href="http://m.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" 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