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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="odkm8fw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448559589844/9647506.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8k4hoqx" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>廣州ＷＣ6高溫止回閥廠家,止回閥</p><p><span>***更新：</span>2021-01-13 08:11:58</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="mwyqsug" 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: </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="jtlipqs" class="page-proshow02"><p class="title">詳細說明</p><div id="cwobdfm" class="box"><p><p style="text-indent:25px">止回閥是用來防止管道和設(shè)備中介質(zhì)倒流的一種閥門。汽輪機組中抽汽回?zé)嵯到y(tǒng)外置加熱器的各抽汽管上均設(shè)置抽汽止回閥其作用是在機組甩負荷時，閥板自動關(guān)閉，防止加熱器汽側(cè)及進汽管道中的蒸汽倒回汽輪機內(nèi)，引起汽輪機超速避免事故的發(fā)生。引進型300MW機組配套的抽汽止回閥是氣控旋啟式止回閥。主要由閥體、閥板、軸、軸套等組成，氣控操縱座由活塞、氣缸體、門桿、彈簧等組成。電站止回閥的檢修前的準(zhǔn)備工作有以下內(nèi)容：在設(shè)備停役，保護及電源、氣源切斷后，將氣控操縱座的進氣、出氣接頭松開，操縱座活塞桿與止回閥杠桿相連接的銷子拆除，并松開操縱座的固定螺栓后把操縱座拆下，廣州ＷＣ6高溫止回閥廠家，定量擺放。然后，進行下面的工作，廣州ＷＣ6高溫止回閥廠家，廣州ＷＣ6高溫止回閥廠家。美標(biāo)止回閥的閥瓣為旋啟式，流道為直通式，水平管道、垂直管道均可安裝。廣州ＷＣ6高溫止回閥廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州ＷＣ6高溫止回閥廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448559589844/9647506.png"></div><p style="text-indent:25px">電站止回閥的清理檢查：檢查閥芯及閥體上的閥線，閥線上應(yīng)無影響密封性能的凹槽、氣孔及橫貫密封面的痕跡，應(yīng)全周接觸無間斷。若發(fā)現(xiàn)有影響密封性能的缺陷應(yīng)進行研磨等處理。檢查閥蝶與搖臂間的連接情況，調(diào)整墊片與搖臂間隙為1～1.2mm之間，不應(yīng)過大也不應(yīng)過小，否則應(yīng)進行調(diào)整。閥蝶與搖臂的緊固螺母連接應(yīng)牢固，定位的焊點應(yīng)完整、無裂紋，閥蝶軸與搖臂圈的間隙應(yīng)符合要求。檢查杠桿軸、搖臂軸與大小襯套及播臂的間隙應(yīng)符合要求，各軸表面及襯套內(nèi)壁表面應(yīng)光潔、無凹坑。廣州ＷＣ6高溫止回閥廠家美標(biāo)止回閥采用木楔式彈性閘板結(jié)構(gòu)，中大口徑設(shè)置滾動軸承，啟閉輕松。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州ＷＣ6高溫止回閥廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448540273437/651682.png"></div><p style="text-indent:25px">電站止回閥按結(jié)構(gòu)劃分，可分為升降式止回閥、旋啟式止回閥和蝶式止回閥三種。升降式止回閥可分為立式和臥式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥為直通式、以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接和焊接三種。電站止回閥：止回閥又稱單向閥或逆止閥，其作用是防止管路中的介質(zhì)倒流。也屬于止回閥類。啟閉件靠介質(zhì)流動和力量自行開啟或關(guān)閉，可以防止介質(zhì)倒流的閥門叫止回閥。止回閥屬于自動閥類，主要用于介質(zhì)單向流動的管道上，只允許介質(zhì)向一個方向流動，以防止發(fā)生事故。</p><p style="text-indent:25px">高壓止回閥瓣沿著閥體垂直中心線滑動的止回閥，內(nèi)螺紋止回閥只能安裝在水平管道上，在高壓小口徑止回閥上閥瓣可采用圓球。蝶式止回閥蝶形止回閥的閥體形狀與截止閥樣可與截止閥通用，因此它的流體阻力系數(shù)較大。高壓止回閥結(jié)構(gòu)與截止閥相似，閥體和閥瓣與截止閥相同。閥瓣上部和閥蓋下部加工有導(dǎo)向套簡，綠色建筑理念將成為帶動閥門技術(shù)升級和建材業(yè)轉(zhuǎn)型的重要引擎而自動化閥門技術(shù)作為綠色節(jié)能建材的一種閥瓣導(dǎo)向簡可在閥盞導(dǎo)向簡內(nèi)自由升降，當(dāng)介質(zhì)順流時，閥瓣靠介質(zhì)推力開啟，當(dāng)介質(zhì)停流時，閥瓣靠自垂降落在閥座上，起阻止介質(zhì)逆流作用。直通式蝶式止回閥介質(zhì)進出口通道方向與閥座通道方向垂直，立式升降式止回閥，其介質(zhì)進出口通道方向與閥座通道方向相同，其流動阻力較直通式小。高壓止回閥是閥瓣圍繞閥座內(nèi)的銷軸旋轉(zhuǎn)的止回閥。碟式止回閥結(jié)構(gòu)簡單，只能安裝在水平管道上，密封性較好。安裝時注意介質(zhì)流動的方向應(yīng)與電站止回閥閥體所票箭頭方向一致。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州ＷＣ6高溫止回閥廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448642070312/4975458.png"></div><p style="text-indent:25px">旋啟式止回閥的閥瓣繞轉(zhuǎn)軸作旋轉(zhuǎn)運動。其流體阻力一般小于升降式止回閥，它適用于較大口徑的場合。旋啟式止回閥根據(jù)閥瓣的數(shù)目可分為單瓣旋啟式、雙瓣旋啟式及多瓣旋啟式三種。單瓣旋啟式止回閥一般適用于中等口徑的場合。大口徑管路選用單瓣旋啟式止回閥時，為減少水錘壓力，采用能減小水錘壓力的緩閉止回閥。雙瓣旋啟式止回閥適用于大中口徑管路。對夾雙瓣旋啟式止回閥結(jié)構(gòu)小、重量輕，是一種發(fā)展比較快的止回閥；多瓣旋啟式止回閥適用于大口徑管路。電站止回閥:止回閥又稱單向閥或逆止閥，其作用是防止管路中的介質(zhì)倒流。也屬于止回閥類。廣州ＷＣ6高溫止回閥廠家</p><p style="text-indent:25px">電站止回閥這種類型的閥門的作用是只允許介質(zhì)向一個方向流動，而且阻止反方向流動。廣州ＷＣ6高溫止回閥廠家</p><p style="text-indent:25px">電站止回閥焊接連接的止回閥適用于公稱壓力PN20.0～32.0MPa，工作溫度≤540℃（其中57170V工作溫度為570℃）的石油、化工、水力、火力電站各種系統(tǒng)的管路上。適用介質(zhì)為：水、油品、蒸汽等。止回閥一般適用于清凈介質(zhì)，不宜用于含有固體顆粒和粘度較大的介質(zhì)。焊接連接的止回閥適用于公稱壓力PN20.0～32.0MPa，工作溫度≤540℃（其中57170V工作溫度為570℃）的石油、化工、水力、火力電站各種系統(tǒng)的管路上。適用介質(zhì)為：水、油品、蒸汽等。止回閥一般適用于清凈介質(zhì)，不宜用于含有固體顆粒和粘度較大的介質(zhì)。廣州ＷＣ6高溫止回閥廠家</p><p style="text-indent:25px">浙江京州閥門制造有限公司是一家閥門、泵、閥門配件制造、銷售／貨物與技術(shù)進出口。主營單向密封雙向密封刀閘閥、漿液閥、穿透式刀閘閥、礦漿閥，方閘門，電站閘閥、電站截止閥、電站止回閥。材質(zhì)包含不銹鋼，碳鋼，球鐵，灰鐵，雙相鋼，鉻鉬鋼等。的公司，是一家集研發(fā)、設(shè)計、生產(chǎn)和銷售為一體的專業(yè)化公司。浙江京州閥門擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供刀閘閥，穿透式刀閘閥，礦漿閥，漿液閥。浙江京州閥門始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。浙江京州閥門創(chuàng)始人邱楓，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2828114.html</p></div></div></div></div></div><div id="xczw8oq" class="page-right twoColRt"><div id="2oie3r8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="cr72x7v" class="recomPic likePro"><a href="http://www.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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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