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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525362480469/9289807.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bph4f7a" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525362480469/9289807.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="v8ac3on" 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>蕪湖國(guó)標(biāo)釜用機(jī)械密封,釜用機(jī)械密封</p><p><span>***更新：</span>2021-01-15 00:21:07</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="oc38xrn" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">伊格爾博格曼機(jī)械密封（張家港）有限公司</a></p><p><span>聯(lián)系人：</span>閆女士</p><p><span>郵箱: </span>eaglebugmann@qq.com</p><p><span>電話: </span>18013293108</p><p><span>傳真: </span>0512_</p><p><span>網(wǎng)址: </span>http://eaglebugmann.com</p><p><span>手機(jī): </span>0512-58756006</p><p><span>地址: </span>德積福民村（天霸路）</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="2kwvmdk" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="c22yfhj" class="box"><p><p> 但擺動(dòng)量仍然很大，蕪湖國(guó)標(biāo)釜用機(jī)械密封，填料密封已滿(mǎn)足不了要求;二是使用條件越來(lái)越苛刻，安全要求也越來(lái)越高，減少泄漏，防止污染環(huán)境的呼聲促使設(shè)計(jì)、生產(chǎn)部門(mén)采用機(jī)械密封;三是釜用機(jī)械密封的結(jié)構(gòu)不斷改進(jìn)以及與其配套的輔助裝置普遍得到采用，使密封效果更良好，從而節(jié)省了維修費(fèi)用.有人做過(guò)統(tǒng)計(jì)，盡管機(jī)械密封的凈購(gòu)置費(fèi)用比填料密封高，但安裝使用之后，機(jī)械密封的維修費(fèi)用只占填料密封維修費(fèi)用的1/20，五年后總費(fèi)用，機(jī)械密封比填料密封低一半.一、釜用機(jī)械密封與泵用機(jī)械密封的區(qū)別1.釜用機(jī)械密封大多數(shù)為立式，少數(shù)為傾斜式，極個(gè)別為水平式.一般計(jì)算機(jī)械密封端面比壓都不考慮旋轉(zhuǎn)零件的自重.2.泵用機(jī)械密封的軸徑多數(shù)在100mm以下，而釜用機(jī)械密封的軸徑在100mm以上也很多.泵用機(jī)械密封的重量一般從幾百克到幾公斤，.而一套釜用機(jī)械密封的重量有時(shí)達(dá)幾百公斤到一千公斤以上。所以，在設(shè)計(jì)時(shí)要考慮安裝、檢修所需的起吊裝置.3.釜用機(jī)械密封的密封介質(zhì)多數(shù)為氣相.因此，釜用密封的端面比壓要比泵用密封的端面比壓高.4，蕪湖國(guó)標(biāo)釜用機(jī)械密封.釜用密封多數(shù)為雙端面，蕪湖國(guó)標(biāo)釜用機(jī)械密封、平衡型結(jié)構(gòu)，此外，為了安裝和檢修方便，也用剖分式結(jié)構(gòu)和易檢拆結(jié)構(gòu).二、上裝式釜用機(jī)械密封上裝式釜用密封應(yīng)用較廣。濰坊MR-D釜用機(jī)械密封件。蕪湖國(guó)標(biāo)釜用機(jī)械密封</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蕪湖國(guó)標(biāo)釜用機(jī)械密封,釜用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525362480469/9289807.png"></div><p> 一、高位差平衡罐裝置高位差平衡罐裝置與釜用機(jī)械密封組合型式見(jiàn)圖1一14。高位差平衡罐裝置的主要設(shè)備是一個(gè)帶有液面計(jì)的平衡罐，罐內(nèi)裝有密封液，罐底部與密封腔的進(jìn)出口連接，頂部與釜內(nèi)連通。釜內(nèi)的壓力可以直接加壓在上面。平衡罐安裝的位置要比反應(yīng)釜高出一定距離，釜內(nèi)壓力加上這段液位差壓力，使密封腔的壓力稍大于釜內(nèi)壓力，且壓差始終保持不變，使密封保持在一個(gè)穩(wěn)定的工作狀態(tài)。二、活塞增壓裝置活塞增壓裝置與釜用機(jī)械密封組合型式見(jiàn)圖1-15。該裝置是一種壓力傳遞機(jī)構(gòu)，平衡罐中間裝有一平衡活塞，平衡罐上部與密封腔連通，下部與釜內(nèi)連通，釜內(nèi)的壓力通過(guò)平衡活塞傳遞到密封腔。由于活塞體上端的承壓面積比活塞體下端的承壓面積減少了一根活塞桿d的面積，則密封液壓力按兩端承壓面積反比例地增加。從而保證了良好的密封條件。設(shè)計(jì)活塞兩端的承壓面積之比時(shí)，應(yīng)根據(jù)所要求的密封腔與釜內(nèi)壓力差來(lái)計(jì)算。此外，活塞桿上裝有彈簧，調(diào)節(jié)好彈簧的壓縮量，使彈簧張力正好抵消活塞上0形圈對(duì)缸壁的摩擦力，以減少計(jì)算值的誤差。三、氮?dú)馄砍鋲貉b置氮?dú)馄砍鋲貉b置與釜用機(jī)械密封組合型式見(jiàn)圖1-16。該裝置與高位差平衡罐裝置相同的是均采用平衡罐補(bǔ)充密封液。蕪湖國(guó)標(biāo)釜用機(jī)械密封太原212釜用機(jī)械密封廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蕪湖國(guó)標(biāo)釜用機(jī)械密封,釜用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525993574219/7876503.png"></div><p> 氣體不會(huì)在泵的中部滯留·(5)無(wú)軸的彎曲問(wèn)題，軸封可遠(yuǎn)離泵體，減少熱的影響。電機(jī)安裝架為遮風(fēng)結(jié)構(gòu)，所以電機(jī)的溫升對(duì)泵幾乎沒(méi)有影響。(6)泵殼埋于地下，易于保冷.所以，石油液化氣用的低溫泵常用以上這種結(jié)構(gòu).2.低溫甲烷泵機(jī)械密封甲烷液化氣在-99℃時(shí)的蒸汽壓接近3MPa.乙烯裝置脫甲烷塔底泵在-53℃時(shí)出口壓力近似3MPa，采用雙端面串聯(lián)式機(jī)械密封，它是比拉公司BB81-K7+BB81B-S7型，尺寸為45x39與50x45(圖10-20)。耐腐蝕機(jī)械密封在腐蝕性介質(zhì)中，機(jī)械密封的零件受到介質(zhì)的強(qiáng)烈侵蝕，摩擦面同時(shí)受到.腐蝕和磨損，這種現(xiàn)象稱(chēng)為“磨蝕“，其腐蝕速度約為無(wú)摩擦?xí)r的10~50倍.某些結(jié)構(gòu)材料具有優(yōu)良的耐蝕性能，耐磨性能卻較差;而另一些結(jié)構(gòu)材料雖具有良好的耐磨性，耐蝕性卻很差.因此，摩擦副應(yīng)選擇既要耐腐蝕又要耐磨，輔助密封圈、彈擠和結(jié)構(gòu)件也要有良好的耐蝕性能.在設(shè)計(jì)耐腐蝕機(jī)械密封時(shí)，一般采取以下一些措施:1.結(jié)構(gòu)上的隔離措施采用外裝式結(jié)構(gòu)，經(jīng)過(guò)適當(dāng)?shù)倪x擇，外裝式密封可以做到無(wú)金屬件與工藝介質(zhì)接觸，小的零件如彈簧、銷(xiāo)子可不受工藝介質(zhì)腐蝕.外裝式有普通型機(jī)械密封和波紋管型機(jī)械密封兩種，’以波紋管型密封結(jié)構(gòu)較好(圖10-21).如密封件材質(zhì)耐蝕能力許可。</p><p> 由介質(zhì)壓力變化引起端面比壓的增量大于或等于介質(zhì)壓力的增量。平衡型：載荷系數(shù)K<1的密封，也就是由介質(zhì)壓力變化引起的端面比壓的增量小于介質(zhì)壓力的增量，稱(chēng)為平衡型密封。根據(jù)密封端面的數(shù)量和布置方式可分為單端面、雙端面及多端面機(jī)械密封。兩組密封端面“背靠背”（圖10a）或“面對(duì)面”（圖10b）布置的密封叫雙端面機(jī)械密封。對(duì)于工作介質(zhì)有毒、易爆、易燃、易揮發(fā)、易結(jié)晶、高溫、低溫或工作介質(zhì)是氣體，或?qū)τ诟哒婵斩鹊拿芊?，可用雙端面密封。此時(shí)雙端面之間的密封腔引入封液進(jìn)行堵封、潤(rùn)滑和冷卻。一般情況下封液選用潔凈和潤(rùn)滑性好的介質(zhì)。二、串聯(lián)機(jī)械密封應(yīng)用的工況兩組或兩組以上同向布置的單端面機(jī)械密封組成串聯(lián)機(jī)械密封（圖11）。這種密封方式使密封腔的壓力逐級(jí)降低，介質(zhì)不至外漏。串聯(lián)密封一般情況下很少采用，只有在壓力很高時(shí)采用。補(bǔ)償機(jī)構(gòu)為波紋管，密封環(huán)（動(dòng)環(huán)或靜環(huán)）和波紋管制成一個(gè)整體，中間沒(méi)有輔助密封圈（見(jiàn)圖8）稱(chēng)為波紋音式機(jī)械密封。波紋音式機(jī)械密封減少了一個(gè)泄漏點(diǎn)；同時(shí)減少了補(bǔ)償機(jī)構(gòu)的摩擦阻力，改善了追隨性；對(duì)于焊接金屬波紋管密封（圖8b）使用溫度不受輔助密封圈的限制；對(duì)于四氟波紋管密封（圖8a）可用于腐蝕性介質(zhì)中。濰坊2009釜用機(jī)械密封件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蕪湖國(guó)標(biāo)釜用機(jī)械密封,釜用機(jī)械密封" src="https://tyunfile.71360.com/UploadFile/ygebgm/637327525788876953/1391639.png"></div><p> 硬環(huán)的材質(zhì)種類(lèi)很多（見(jiàn)“27”）。只有在特殊情況下，如介質(zhì)中含有固體顆粒、有結(jié)晶析出或高粘度流體中才選用硬對(duì)硬的配對(duì)。當(dāng)選用一軟一硬的配對(duì)時(shí)硬環(huán)端面的寬度比軟環(huán)寬，在硬對(duì)硬的材質(zhì)中可不受此限制。為減少泄漏量和機(jī)械雜質(zhì)進(jìn)入密封端面的可能性，盡量采用內(nèi)裝內(nèi)流式密封結(jié)構(gòu)S選擇導(dǎo)熱性良好的材料做動(dòng)環(huán)，以散出較多的熱量，降低密封端面的溫度。為保證密封環(huán)的整體強(qiáng)度和剛度，環(huán)的壁厚不可太薄。對(duì)于導(dǎo)熱性良好的材料，增加環(huán)厚有利散熱；對(duì)于導(dǎo)熱性欠佳的材料厚度可小些。對(duì)于所受壓力較高的密封環(huán)，要從力學(xué)角度另行設(shè)計(jì)，必要時(shí)采取加固措施。環(huán)的形狀要軸對(duì)稱(chēng)，以減少其不對(duì)稱(chēng)的機(jī)械變形和熱變形。動(dòng)環(huán)做補(bǔ)償環(huán)時(shí)，例如國(guó)產(chǎn)104和B104型密封（圖13、圖14），動(dòng)環(huán)和軸（軸套）的（直徑）間隙為0．40～0．60mm，以防止動(dòng)環(huán)在工作中卡住而失去補(bǔ)償能力；靜環(huán)內(nèi)徑要比軸（軸套）大l～2mm，避免兩者摩擦。密封端面的寬度是個(gè)重要參數(shù)，要綜合考慮。三、密封端面的寬度要考慮的因素密封端面的寬度一般是首先決定軟面的寬度，硬面寬度自不待說(shuō)。泄漏量與端面寬度關(guān)系不大。但是，從產(chǎn)生的摩擦熱量來(lái)說(shuō)窄一些較好，產(chǎn)生的熱量較少，溫度梯度小，熱變形也小。大慶204B釜用機(jī)械密封件。蕪湖國(guó)標(biāo)釜用機(jī)械密封</p><p style="text-indent:25px">大慶FMY212釜用機(jī)械密封件。蕪湖國(guó)標(biāo)釜用機(jī)械密封</p><p> 使彈簧旋緊而不是旋松，這是必須指出的。旋轉(zhuǎn)式機(jī)械密封傳動(dòng)座和動(dòng)環(huán)的傳動(dòng)方式1）銷(xiāo)釘傳動(dòng)。通過(guò)推環(huán)，在推環(huán)和動(dòng)環(huán)之間用銷(xiāo)釘實(shí)現(xiàn)傳動(dòng)（圖35），這種傳動(dòng)方式多用在小彈簧的結(jié)構(gòu)上。2）突耳傳動(dòng)。國(guó)內(nèi)生產(chǎn)的104型密封即采用此種結(jié)構(gòu)。在動(dòng)環(huán)外緣制成圓弧槽，而將與此接觸的傳動(dòng)座壓成突耳，使之嵌入動(dòng)環(huán)的槽中，實(shí)現(xiàn)傳動(dòng)（圖13）。這種結(jié)構(gòu)可用于大彈簧，也可用于小彈簧的密封結(jié)構(gòu)。3）并圈彈簧傳動(dòng)。傳動(dòng)座與彈簧以及彈簧和動(dòng)環(huán)之間，完全依靠大彈簧內(nèi)徑的過(guò)盈值實(shí)現(xiàn)傳動(dòng)（圖34），當(dāng)然也有旋向的要求。這種結(jié)構(gòu)都用在大彈簧的密封結(jié)構(gòu)上。4）勾圈彈簧傳動(dòng)。為了增加并圈彈簧傳動(dòng)的可靠性，彈簧的兩個(gè)端頭制成彎勾形，分別鉤住傳動(dòng)座和動(dòng)環(huán)（圖36）。5）離合器傳動(dòng)。傳動(dòng)座和動(dòng)環(huán)（或通過(guò)推環(huán)）分別制成方形的凸起和缺口，組裝好后凸起插入缺口中實(shí)現(xiàn)傳動(dòng)（圖37）。6）波紋管傳動(dòng)。這種方式是波紋管型密封的特有結(jié)構(gòu)，波紋管兩端分別與傳動(dòng)座和動(dòng)環(huán)聯(lián)接，至于聯(lián)接方式依波紋管材料而定。例如，對(duì)金屬波紋管，則采用焊接；對(duì)于橡膠和四氟波紋管，則采用整體或其他方式聯(lián)接。靜止式機(jī)械密封的動(dòng)環(huán)的旋轉(zhuǎn)靜止式機(jī)械密封的動(dòng)環(huán)直接固定在軸（軸套）上，隨軸一起旋轉(zhuǎn)。蕪湖國(guó)標(biāo)釜用機(jī)械密封</p></p><br 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