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id="vz87suw" 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>常州電動泵密封批發(fā)廠,封</p><p><span>***更新：</span>2020-08-17 06:06:38</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="qewt3ol" 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="eif7nzg" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fewyipw" class="box"><p><p> 給水泵內(nèi)的高壓水雖經(jīng)過密封件，但依然有一定的壓力，為了不讓給水泵內(nèi)的水通過軸與密封件之間的間隙外泄，就從凝結(jié)水泵出口或除鹽水母管引以水源為密封水。 </p> <p> 給水泵內(nèi)的水是具有一定溫度的水，高溫水會通過泵的轉(zhuǎn)軸或泵體金屬把熱量傳遞給軸承，使軸承溫度升高。為了控制熱量外傳，所以密封水也起著冷卻的作用。 </p> <p> 在密封水通過密封件時(shí)，常州電動泵密封批發(fā)廠，常州電動泵密封批發(fā)廠，水在軸與密封件之間形成水膜，常州電動泵密封批發(fā)廠，防止在此處軸與密封件之間的間隙外泄，造成大量的工質(zhì)損失；同時(shí)高溫給水會通過泵軸和泵體金屬把熱量傳遞給軸承使軸承溫度升高。嚴(yán)重時(shí)還會使軸承燒毀；高速旋轉(zhuǎn)的軸與密封件之間的間隙很小，當(dāng)失去密封水時(shí)，此處的水膜也就遭到破壞，軸與密封件很可能發(fā)生摩擦，使給水泵振動增大，嚴(yán)重時(shí)將造成設(shè)備損壞。密封水的回水一般采用多級水封管引入凝汽器。 </p> <p> <br /> 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。常州電動泵密封批發(fā)廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州電動泵密封批發(fā)廠,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247298359511719/4792927.jpg"></div><p> 結(jié)合設(shè)計(jì)經(jīng)驗(yàn)以及對API 682標(biāo)準(zhǔn)的研究，對泵用機(jī)械密封的選型要點(diǎn)進(jìn)行了分析，主要包括密封類型、密封形式、布置方式、沖洗方案等。進(jìn)而對煉油裝置中的高溫?zé)嵊捅谩⒏邷責(zé)崴靡约皬?qiáng)酸強(qiáng)堿泵機(jī)械密封及輔助系統(tǒng)的選型提出了合理化建議，對API 682中的PLAN53B和PLAN23進(jìn)行了改進(jìn)，使之更好地為機(jī)械密封服務(wù)，有利于機(jī)械密封長期穩(wěn)定運(yùn)行。 </p> <p> 由于機(jī)械密封具有密封性能好、工作可靠、泄漏量小、功率消耗少等特點(diǎn)，因而在國內(nèi)外煉油化工生產(chǎn)的旋轉(zhuǎn)設(shè)備中得到了較大規(guī)模的應(yīng)用，已經(jīng)成為泵、壓縮機(jī)、反應(yīng)釜、攪拌器等工藝設(shè)備能否正常運(yùn)轉(zhuǎn)的關(guān)鍵部件。 </p> <p> 隨著環(huán)境保護(hù)和人類健康要求的提高，煉油裝置中對泵用機(jī)械密封的要求也在不斷提高。據(jù)統(tǒng)計(jì)，煉油裝置中機(jī)泵故障的40% 以上是由于機(jī)械密封發(fā)生泄漏而引起的。造成這一現(xiàn)象的原因，一是作為機(jī)泵中的動密封其本身所處的工作條件、起的作用所決定；二是許多國內(nèi)設(shè)計(jì)單位以及工程公司認(rèn)為機(jī)械密封及系統(tǒng)的選用是泵廠和密封廠的責(zé)任，往往對密封的類型、布置方式、沖洗方案了解不深，難以制定機(jī)械密封的選配方案，造成部分密封選型不當(dāng)。 </p> <p> <br /> 南通污水密封批發(fā)廠橡塑密封件的作用使它成為**、化工、石油、煤炭、交通運(yùn)輸和機(jī)械制造等國民經(jīng)濟(jì)主要行業(yè)中的基礎(chǔ)部件.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州電動泵密封批發(fā)廠,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247266600576172/7557626.jpg"></div><p> 油封的裝配，無論油封的安裝部分設(shè)計(jì)和油封的選擇多么適宜，如果組裝的粗糙，也不能充分發(fā)揮油封預(yù)定的功能。 </p> <p> <span style="font-size:12px;">油封安裝時(shí),外表面應(yīng)涂上適當(dāng)?shù)臐櫥瑒?，唇口?yīng)涂上適合的清潔潤滑脂，帶有防塵唇的油封，應(yīng)在主付唇間填滿適合的清潔潤滑脂，再進(jìn)行裝配.把油封的密封唇口端朝向密封介質(zhì)一側(cè),切忌反向裝配.油封裝入座孔時(shí),應(yīng)采用**工具推入,防止位置偏斜.油封唇緣通過的螺紋,鍵槽,花鍵等處應(yīng)采取各種措施來防止唇緣損傷,并用**工具裝配.油封應(yīng)水平放入座孔，并均勻加壓，請勿傾斜強(qiáng)制推進(jìn)。</span> </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出現(xiàn)高于20℃的過高溫度。當(dāng)超過容許溫度時(shí)會縮短油封的工作壽命，造成密封唇過早長久性硬化，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)工作壓力超過這個值時(shí)應(yīng)選用耐壓型油封。</span> </p> <p> <br /> 機(jī)械密封的正常運(yùn)行必須具備以下條件：泵軸的竄量不能太大。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州電動泵密封批發(fā)廠,封" src="https://tyunfile.71360.com/UploadFile/lscmjx/637247293380048828/7808572.jpg"></div><p> </p> <p> 一般情況下，介質(zhì)的溫度超過120℃即認(rèn)為是高溫密封。此時(shí)機(jī)械密封存在的主要問題有：(1)由于摩擦副端面溫度升高，導(dǎo)致密封端面間液膜氣化，摩擦系數(shù)隨之增大，磨損加劇，溫升加大，密封環(huán)產(chǎn)生熱變形或熱裂而失效；(2)機(jī)械密封中的輔助密封圈材料一般為橡膠或聚四氟乙烯，由于長時(shí)間在高溫環(huán)境中，容易老化和分解，造成密封失效；(3)高溫下機(jī)械密封的彈性元件易產(chǎn)生疲勞和蠕變，使密封失效；(4)高溫會加劇金屬材料的腐蝕，縮短機(jī)封的使用壽命。 O形密封圈雖然密封可靠，但如果不注意使用條件，也會發(fā)生泄漏。常州管道泵密封廠家供應(yīng)</p><p style="text-indent:25px">密封件必須避開強(qiáng)光照射，避免密封件被空氣中臭氧侵蝕或提早老化。常州電動泵密封批發(fā)廠</p><p> 防止工作介質(zhì)從泵內(nèi)泄漏出來或者防止外界雜質(zhì)或空氣侵入到泵內(nèi)部的裝置或措施稱為密封，被密封的介質(zhì)一般為液體、氣體或粉塵。 </p> <p> 造成泄漏的原因主要有兩個方面：一是密封面上有間隙。二是密封部位兩側(cè)存在壓力差，消除或減小任何一個因素都可以阻止或減小泄漏，達(dá)到密封的目的。泵的設(shè)計(jì)壓力和使用壓力是客觀存在不能減小，所以泵的密封該解決的是消除或減小密封面之間的間隙。這種間隙包括密封面之間的間隙和密封裝置本生內(nèi)部的間隙。 </p> <p> <br /> 常州電動泵密封批發(fā)廠</p><p style="text-indent:25px">漣水創(chuàng)密機(jī)械制造有限公司成立于2014-07-02，專業(yè)漣水創(chuàng)密機(jī)械制造有限公司產(chǎn)品包括:輕型密封、中型密封、重型密封，***應(yīng)用于石油、化工、電力、造紙，食品，機(jī)械密封件來料加工（塑料機(jī)械密封件除外）、銷售；機(jī)械配件、汽車配件銷售；自營和代理各類商品及技術(shù)的進(jìn)出口業(yè)務(wù)，等多項(xiàng)業(yè)務(wù)，主營業(yè)務(wù)涵蓋[ "輕型密封", "中型密封", "重型密封", "小型水泵" ]。公司目前擁有51~100人員工，為員工提供廣闊的發(fā)展平臺與成長空間，為客戶提供高質(zhì)高效的產(chǎn)品服務(wù)，深受員工與客戶好評。公司以誠信為本，業(yè)務(wù)領(lǐng)域涵蓋[ "輕型密封", "中型密封", "重型密封", "小型水泵" ]，我們本著對客戶負(fù)責(zé)，對員工負(fù)責(zé)，更是對公司發(fā)展負(fù)責(zé)的態(tài)度，爭取做到讓每位客戶滿意。目前公司已經(jīng)成為[ "輕型密封", "中型密封", "重型密封", "小型水泵" ]的**企業(yè)，正積蓄著更大的能量，向更廣闊的空間、更***的領(lǐng)域拓展。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/942163.html</p></div></div></div></div></div><div id="2be2czl" class="page-right twoColRt"><div id="82ycw7d" class="box01 margin10 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