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clearfix"><div id="g77rovn" class="twoCol"><div id="3yartah" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_famenti/">閥門</a>?<a href="http://www.cdcfah.com/cp/third-famenti_jiezhifaqc/">截止閥</a>?北京電站截止閥生產(chǎn)廠家誠信為本浙江京州閥門制造供應(yīng)</p><div id="iprovxz" class="leftbox clearfix"><h1>北京電站截止閥生產(chǎn)廠家誠信為本浙江京州閥門制造供應(yīng)</h1><div id="oyas2yq" class="proBig"><div id="jd7zbyk" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jingzhou/637279443887695312/7191149.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lfxz3wd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jingzhou/637279443887695312/7191149.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="x3ed7b7" 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>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>北京電站截止閥生產(chǎn)廠家,截止閥</p><p><span>***更新：</span>2020-12-30 12:11:55</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="gkm2wta" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">浙江京州閥門制造有限公司</a></p><p><span>聯(lián)系人：</span>張和榮</p><p><span>郵箱: </span>maggiez@jcs-valve.com</p><p><span>電話: </span>15888733099</p><p><span>傳真: </span>0577_67351896</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0577-67359296</p><p><span>地址: </span>甌北街道五星工業(yè)區(qū)上玉路</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="she2fsk" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="lamjlnp" class="box"><p><p style="text-indent:25px">電站截止閥面臨哪些技術(shù)難題?1.應(yīng)滿足壽命、剛性要求-強(qiáng)度。閥門的強(qiáng)度與閥門的使用壽命受機(jī)組頻繁啟動(dòng)的影響非常大，尤其是調(diào)節(jié)閥來調(diào)速的汽輪機(jī)，以前人們常常把主要點(diǎn)放在控制上，從這個(gè)角來分析強(qiáng)度問題也是不能小覷的！科研工作者不應(yīng)該把全部的注意力都放在控制這。個(gè)問題上，加強(qiáng)對(duì)閥門的強(qiáng)度、壽命、密封性質(zhì)的研究，也是應(yīng)該注意的，它們可是閥門工作的基本條件。2.決定閥門動(dòng)作的可靠性-控制。再熱氣閥和主氣閥的系統(tǒng)控制故障是五大事故之一，閥門的開度與設(shè)計(jì)不符合為是主要表現(xiàn)之一，這樣就會(huì)導(dǎo)致傳動(dòng)機(jī)構(gòu)失靈、滯后、行程超前都將會(huì)對(duì)閥門的強(qiáng)度和振動(dòng)造成影響，汽機(jī)的工作狀況直接受閥門開度的影響，故受到格外重視，也成為了一項(xiàng)研究的主要問題。3.振動(dòng)，北京電站截止閥生產(chǎn)廠家，北京電站截止閥生產(chǎn)廠家，北京電站截止閥生產(chǎn)廠家。閥門開度變化，由于振動(dòng)的原因有可能導(dǎo)致執(zhí)行機(jī)構(gòu)的動(dòng)態(tài)性能不佳和閥體存在泄漏其實(shí)振動(dòng)本身對(duì)閥門造成的傷害是非常小的，但對(duì)整個(gè)機(jī)組影響就非常大了，表現(xiàn)在產(chǎn)生低頻震蕩。電站截止閥的閥桿有良好的抗腐蝕性和抗擦傷性。北京電站截止閥生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京電站截止閥生產(chǎn)廠家,截止閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279443887695312/7191149.png"></div><p style="text-indent:25px">電站截止閥所謂的“高低” 即安裝的注意流向。電站截止閥是歸于強(qiáng)制性密封的閥門，也是運(yùn)用普遍的閥門之一，該閥的密封圈選用的是較新式的非金屬原料所制作，可以長(zhǎng)時(shí)間的在高壓或高溫體系中運(yùn)用，而且可以保證杰出彈性回憶，柱塞與密封圈之間的觸摸面積大，高質(zhì)量的密封原料，然后保證電站**截止閥經(jīng)久耐用，密封牢靠。電站截止閥使用中閉合原理是依靠閥杠壓力，使閥瓣密封面與閥座密封面緊密貼合，阻止介質(zhì)流通，可普遍用于化工設(shè)備、通用零部件、工業(yè)設(shè)備、制藥設(shè)備、通用設(shè)備、石化設(shè)備、電力設(shè)備、治金粉末設(shè)備、采礦設(shè)備，市政、電子工業(yè)等領(lǐng)域，適用于水、蒸汽、油品、硝酸、醋酸、堿液、鹽水、海水、氧氣等介質(zhì)。北京電站截止閥生產(chǎn)廠家電站截止閥結(jié)構(gòu)簡(jiǎn)單，制造和維修比較方便。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京電站截止閥生產(chǎn)廠家,截止閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279444440664062/6806978.png"></div><p style="text-indent:25px">電站截止閥能承受系統(tǒng)的極限壓力，閥門的閥芯和閥座所選用的材料具有耐高溫高壓抗流體沖刷的**度性能，密封面及閥芯選用堆焊鈷基合金，密封填料材料具有耐高溫高壓且密封性能好的特點(diǎn)，可以確保閥門密封完好無泄漏。高溫高壓情況填料采用柔性石墨，密封填料位于閥桿螺紋之下以隔絕螺紋與介質(zhì)直接接觸，密封時(shí)閥芯不旋轉(zhuǎn)，以確保密封嚴(yán)密性，該電站閥具有反向關(guān)閉功能。電站截止閥主要適用于火力電站各種系統(tǒng)的管路上，切斷或接通管路介質(zhì)。適用介質(zhì)：水、蒸氣等非腐蝕性介質(zhì)。電站閥門與其他閥門產(chǎn)品相比的特點(diǎn)是高溫高壓，獨(dú)特的自密封設(shè)計(jì)，壓力越高，密封越可靠。由于性能技術(shù)特性、工況的特殊使產(chǎn)品也形成了其他產(chǎn)品所替代不了的特點(diǎn)。電站截止閥是一種比較新型的閘閥類別，它有著自身結(jié)構(gòu)所獨(dú)有的一些優(yōu)越性，如開關(guān)無摩擦，密封不易磨損，啟閉力矩小。這樣可減小所配執(zhí)行器的規(guī)格。配以多回轉(zhuǎn)電動(dòng)執(zhí)行機(jī)構(gòu)，可實(shí)現(xiàn)對(duì)介質(zhì)的調(diào)節(jié)和嚴(yán)密切斷。</p><p style="text-indent:25px">有哪些方法能提高電站截止閥的密封壽命呢?電站截止閥結(jié)構(gòu)簡(jiǎn)樸，可通過閥桿既旋轉(zhuǎn)又升降的原理，達(dá)到閥門的開啟或截?cái)啵⒋_保閥門的密封和上密封功能。因?yàn)樵摻Y(jié)構(gòu)特殊的運(yùn)動(dòng)原理，也造成對(duì)閥門上密封副間受力極為不利的后果（形成既有密封副間必需的垂直壓力，又有密封副間相對(duì)滑移的摩擦）。實(shí)踐證明，閥門的上密封往往只啟閉幾回，就因?yàn)槊芊飧遍g的擦傷而引起泄漏。擦傷輕微的需拆開修復(fù)，擦傷嚴(yán)峻的均因損壞而報(bào)廢，這樣的后果不但增加了企業(yè)的制造成本，而且影響閥門的機(jī)能。為解決此類標(biāo)題題目對(duì)閥門上密封的結(jié)構(gòu)和材料做了試驗(yàn)和改進(jìn)。將閥桿的上密封部位移動(dòng)到閥瓣上（目的是在受力過程中，使閥瓣上的上密封面相對(duì)閥蓋上的上密封面處于靜止無滑移狀態(tài)）。此改進(jìn)雖然可提高上密封的壽命，但因?yàn)橐黾右坏篱y瓣蓋與閥瓣間的密封使得結(jié)構(gòu)較復(fù)雜，性價(jià)比較低。電站截止閥流體阻力小，其阻力系數(shù)與同長(zhǎng)度的管段相等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京電站截止閥生產(chǎn)廠家,截止閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279444197783203/7233474.png"></div><p style="text-indent:25px">電站截止閥按其通道位置可分為直通式，三通式和直角式。后兩種閘閥用于分配介質(zhì)與改變介質(zhì)的流向。電站截止閥安裝與維護(hù)應(yīng)注意以下事項(xiàng)：1.要留有閥柄旋轉(zhuǎn)的位置。2.不能用作節(jié)流。3.帶傳動(dòng)機(jī)構(gòu)的球閥應(yīng)直立安裝。電站截止閥密封面不易磨損及擦傷，密封性好，啟閉時(shí)閥瓣與閥體密封面之間無相對(duì)滑動(dòng)，因而磨損與擦傷均不嚴(yán)重，密封性能好，使用壽命長(zhǎng)。啟閉時(shí)，閥瓣行程小，因而截止閥高度比閘閥小，但結(jié)構(gòu)長(zhǎng)度比閘閥長(zhǎng)。對(duì)于電站截止閥來說，正確的操作是非常重要的，做好了操作才能確保電站截止閥在實(shí)際生產(chǎn)中的運(yùn)用。電站截止閥能有效減少裝置停車，降低成本。北京電站截止閥生產(chǎn)廠家</p><p style="text-indent:25px">截止閥的設(shè)計(jì)壓力和設(shè)計(jì)溫度不得低于與其連接的管道的設(shè)計(jì)壓力和設(shè)計(jì)溫度。北京電站截止閥生產(chǎn)廠家</p><p style="text-indent:25px">電站截止閥的結(jié)構(gòu)特點(diǎn)：1、啟閉無摩擦。這一功能完全解決了傳統(tǒng)閥門因密封面之間相互摩擦而影響密封的問題。2、上裝式結(jié)構(gòu)。對(duì)裝在管道上的閥門可直接在線檢查與維修，能有效減少裝置停車，降低成本。3、單閥座設(shè)計(jì)。消除了閥門中腔介質(zhì)因異常升壓而影響使用安全的問題。4、低扭矩設(shè)計(jì)。特殊結(jié)構(gòu)設(shè)計(jì)的閥桿，只需配一個(gè)小手把閥門就能輕松啟閉。5、楔形密封結(jié)構(gòu)。閥門是靠閥桿提供的機(jī)械力，將球楔壓到閥座上而密封，使閥門的密封性不受管線壓差變化的影響，在各種工況下密封性能都有可靠保證。6、密封面的自清潔結(jié)構(gòu)。當(dāng)球體傾離閥座時(shí)，管線中的流體沿球體密封面成360度均勻通過，不僅消除了高速流體對(duì)閥座局部的沖刷，也沖走了密封面上的聚積物，達(dá)到自清潔的目的。北京電站截止閥生產(chǎn)廠家</p><p style="text-indent:25px">浙江京州閥門制造有限公司主要經(jīng)營范圍是機(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。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下刀閘閥，穿透式刀閘閥，礦漿閥，漿液閥深受客戶的喜愛。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)。浙江京州閥門秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2630816.html</p></div></div></div></div></div><div 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