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id="gfr2myp" class="twoCol"><div id="7vceijq" 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-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_famenmp/">閥門</a>?<a href="http://www.cdcfah.com/cp/third-famenmp_fatinw/">閥體</a>?浙江自動(dòng)三通回流閥定制哪家好歡迎來電上海大田閥門管道工程供應(yīng)</p><div id="87pkwoa" class="leftbox clearfix"><h1>浙江自動(dòng)三通回流閥定制哪家好歡迎來電上海大田閥門管道工程供應(yīng)</h1><div id="f87ax3u" class="proBig"><div id="p4duq23" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343241537685546/5558241.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="24nevc3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdatian/637343241537685546/5558241.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rcjgxet" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>浙江自動(dòng)三通回流閥定制哪家好,自動(dòng)再循環(huán)閥</p><p><span>***更新：</span>2021-02-05 14:21:06</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="m8lsz8c" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海大田閥門管道工程有限公司</a></p><p><span>聯(lián)系人：</span>余璐辰</p><p><span>郵箱: </span>business@dtjt.com</p><p><span>電話: </span>18621060309</p><p><span>傳真: </span>21_</p><p><span>網(wǎng)址: </span>https://www.dtjt.com</p><p><span>手機(jī): </span>21-68106370</p><p><span>地址: </span>祝橋鎮(zhèn)工業(yè)城</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="zb8k8sm" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="biahjah" class="box"><p><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥處于徹底開啟方位時(shí)，蝶板厚度是介質(zhì)流經(jīng)閥體時(shí)的阻力，因而通過該閥門所產(chǎn)生的壓力降很小，故具有較好的流量控制特性。自動(dòng)再循環(huán)閥有彈密封和金屬的密封兩種密封型式，浙江自動(dòng)三通回流閥定制哪家好。彈性密封閥門，密封圈可以鑲嵌在閥體上或附在蝶板周邊。采用金屬密封的閥門一般比彈性密封的閥門壽命長(zhǎng)，但很難做到徹底密封。金屬密封能習(xí)慣較高的工作溫度，彈性密封則具有受溫度限制的缺點(diǎn)。如果要求自動(dòng)再循環(huán)閥作為流量控制運(yùn)用，主要的是正確選擇閥門的尺度和類型。自動(dòng)再循環(huán)閥的結(jié)構(gòu)原理特別適合制作大口徑閥門。自動(dòng)再循環(huán)閥不只在石油、煤氣、化工，浙江自動(dòng)三通回流閥定制哪家好、水處理等一般工業(yè)上得到普遍應(yīng)用，浙江自動(dòng)三通回流閥定制哪家好，并且還應(yīng)用于熱電站的冷卻水系統(tǒng)。自動(dòng)再循環(huán)閥在石油、煤氣、化工、水處置等普通工業(yè)上得到普遍應(yīng)用.浙江自動(dòng)三通回流閥定制哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江自動(dòng)三通回流閥定制哪家好,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343241537685546/5558241.png"></div><p style="text-indent:25px"> 現(xiàn)代工業(yè)設(shè)備工藝過程中，要求自動(dòng)再循環(huán)閥基本上都是在變流量的狀態(tài)下工作，這就需要在工藝過程中有設(shè)置自動(dòng)控制設(shè)備(離心自動(dòng)再循環(huán)閥)。然而離心泵在低于負(fù)荷運(yùn)行時(shí)會(huì)出現(xiàn)過熱、嚴(yán)重噪聲、不穩(wěn)定和氣蝕而引起泵的損壞。這是需要一種自動(dòng)再循環(huán)設(shè)備，在泵低于負(fù)荷運(yùn)行時(shí)，通過旁路實(shí)現(xiàn)泵小流量回流循環(huán)。自動(dòng)再循環(huán)閥用于防止各種離心泵在低于負(fù)荷運(yùn)行時(shí)由于過熱、嚴(yán)重噪聲、不穩(wěn)定和氣蝕而引起的損壞。只要泵的流量低于一定數(shù)值，旁路回流閥的閥口就會(huì)自動(dòng)的打開，以此來保證液泵所必須的小流量。上海自動(dòng)三通回流閥有哪些品牌自動(dòng)再循環(huán)閥用于泵的小連續(xù)流量保護(hù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江自動(dòng)三通回流閥定制哪家好,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343241812021484/6437117.png"></div><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥閥門類型確定，閥門類型主要依照旁路壓差確定，同時(shí)要核算主路壓降，因此需詳細(xì)核算旁路壓降。旁路壓降為泵小連續(xù)流量下的出口壓力減去自動(dòng)再循環(huán)閥旁路出口的背壓。泵小連續(xù)流量下的出口壓力通過查泵廠家提供的性能曲線上的小連續(xù)流量下的揚(yáng)程，然后折算為壓差再加上泵的入口壓力獲得。自動(dòng)再循環(huán)閥旁路出口的背壓=返回罐的操作壓力+自動(dòng)再循環(huán)閥旁路出口與返回罐的位差折算的壓力+旁路回流管線的壓力損失+適當(dāng)余量。</p><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥是一種泵保護(hù)裝置。它自動(dòng)對(duì)離心泵（尤其輸送熱水介質(zhì)）在低負(fù)荷運(yùn)行時(shí)泵體內(nèi)可能出現(xiàn)的部分氣蝕損害和不穩(wěn)定進(jìn)行保護(hù)。主路止回閥的閥桿通過一杠桿，將主閥瓣動(dòng)作傳遞至旁路，旁路系統(tǒng)控制通過旁路的流量同時(shí)將壓力減至出口所需值，當(dāng)主閥瓣回到閥座關(guān)閉狀態(tài)時(shí)，所有流量通過旁路（回流），當(dāng)主閥瓣上升到頂端位置時(shí)，旁路則完全關(guān)閉，所有泵的流量流向工藝系統(tǒng)。自動(dòng)再循環(huán)閥為自力式控制閥，不需要外部供給能源。與傳統(tǒng)的控制閥系統(tǒng)相比。自動(dòng)再循環(huán)閥完全機(jī)械結(jié)構(gòu)，依靠流量控制閥門，不需要額外的能源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江自動(dòng)三通回流閥定制哪家好,自動(dòng)再循環(huán)閥" src="https://tyunfile.71360.com/UploadFile/shdatian/637343243029707031/6971853.png"></div><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥又叫翻板閥，是一種結(jié)構(gòu)簡(jiǎn)單的調(diào)節(jié)閥，可用于低壓管道介質(zhì)的開關(guān)控制的自動(dòng)再循環(huán)閥是指關(guān)閉件（閥瓣或蝶板）為圓盤，圍繞閥軸旋轉(zhuǎn)來達(dá)到開啟與關(guān)閉的一種閥。閥門可用于控制空氣、水、蒸汽、各種腐蝕性介質(zhì)、泥漿、油品、液態(tài)金屬和放射性介質(zhì)等各種類型流體的流動(dòng)。在管道上主要起切斷和節(jié)流作用。自動(dòng)再循環(huán)閥啟閉件是一個(gè)圓盤形的蝶板，在閥體內(nèi)繞其自身的軸線旋轉(zhuǎn)，從而達(dá)到啟閉或調(diào)節(jié)的目的。在工業(yè)生產(chǎn)中，自動(dòng)再循環(huán)閥是一個(gè)很關(guān)鍵的機(jī)械裝置，是很常見的。金屬密封自動(dòng)再循環(huán)閥產(chǎn)品不適合裝置于管路結(jié)尾.浙江自動(dòng)三通回流閥定制哪家好</p><p style="text-indent:25px">自動(dòng)再循環(huán)閥可以設(shè)置自動(dòng)控制.浙江自動(dòng)三通回流閥定制哪家好</p><p style="text-indent:25px"> 自動(dòng)再循環(huán)閥出口裝有自動(dòng)再循環(huán)閥時(shí),它會(huì)立即關(guān)閉,防止高壓水反向流回水泵。自動(dòng)再循環(huán)閥是指依靠介質(zhì)本身流動(dòng)而自動(dòng)開、閉閥瓣用來防止介質(zhì)倒流的閥門,又稱逆止閥、單向閥、逆流閥和背壓閥。自動(dòng)再循環(huán)閥屬于一種自動(dòng)閥門,其主要作用是防止介質(zhì)倒流、防止泵及驅(qū)動(dòng)電動(dòng)機(jī)反轉(zhuǎn),以及容器介質(zhì)的泄放。自動(dòng)再循環(huán)閥的閥瓣呈圓盤狀,繞閥座通道的轉(zhuǎn)軸作旋轉(zhuǎn)運(yùn)動(dòng),因閥內(nèi)通道成流線型,流動(dòng)阻力比升降式自動(dòng)再循環(huán)閥小,適用于低流速和流動(dòng)不常變化的大口徑場(chǎng)合。浙江自動(dòng)三通回流閥定制哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3178086.html</p></div></div></div></div></div><div id="tda28cj" class="page-right twoColRt"><div id="zjb3el2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qkmo78n" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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