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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://www.cdcfah.com/cp/second-yiqiyibiao_wybez/">物位儀表</a>?<a href="http://www.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?鹽城金屬轉(zhuǎn)子流量計價格服務(wù)至上江蘇中徽測控儀表供應(yīng)</p><div id="i2b3h37" class="leftbox clearfix"><h1>鹽城金屬轉(zhuǎn)子流量計價格服務(wù)至上江蘇中徽測控儀表供應(yīng)</h1><div id="gevzqmd" class="proBig"><div id="zx3gp89" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436288983535731/8125157.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zhlxoug" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436288983535731/8125157.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="r38s3cy" 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>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>鹽城金屬轉(zhuǎn)子流量計價格,流量計</p><p><span>***更新：</span>2020-12-26 09:10:08</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="rfwiu8r" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測控儀表有限公司</a></p><p><span>聯(lián)系人：</span>姜經(jīng)理</p><p><span>郵箱: </span>jszhck@163.com</p><p><span>電話: </span>13770424300</p><p><span>傳真: </span>0517_86903470</p><p><span>網(wǎng)址: </span>http://www.jszhckyb.com</p><p><span>手機: </span>0517-86900078</p><p><span>地址: </span>江蘇省淮安市金湖縣工業(yè)集中區(qū)A區(qū)3號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8wuq3q2" class="page-proshow02"><p class="title">詳細說明</p><div id="har3zqh" class="box"><p><p> 渦街流量計 </p> <p> 工作原理：根據(jù)流體振蕩原理來測量流量的，流體在管道中經(jīng)過渦街流量變送器時，在三角柱的旋渦發(fā)生體后上下交替產(chǎn)生正比于流速的兩列旋渦，旋渦的釋放頻率與流過旋渦發(fā)生體的流體平均速度及旋渦發(fā)生體特征寬度有關(guān)，根據(jù)這種關(guān)系，旋渦頻率就可以計算出流過旋渦發(fā)生體的流體平均速度，再乘以橫截面積得到流量。 </p> <p> 工作特點：①結(jié)構(gòu)簡單而牢固，無可動部件，鹽城金屬轉(zhuǎn)子流量計價格，可靠性高，長期運行十分可靠;②安裝簡單，維護十分方便;③檢測傳感器不直接接觸被測介質(zhì)，性能穩(wěn)定，壽命長;④輸出是與流量成正比的脈沖信號，鹽城金屬轉(zhuǎn)子流量計價格，鹽城金屬轉(zhuǎn)子流量計價格，無零點漂移，精度高;⑤測量范圍寬，量程比可達1：10;⑥壓力損失較小，運行費用低，更具節(jié)能意義。流量計是利用伯努利方程原理，通過測量流體差壓信號反映流量;鹽城金屬轉(zhuǎn)子流量計價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城金屬轉(zhuǎn)子流量計價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436288983535731/8125157.png"></div><p style="text-indent:25px">超聲波流量計是基于超聲波在流動介質(zhì)中傳播的速度等于被測介質(zhì)的平均流速和聲波本身速度的幾何和的原理而設(shè)計的。它也是由測流速來反映流量大小的。超聲波流量計雖然在70年代才出現(xiàn)，但由于它可以制成非接觸型式，并可與超聲波水位計聯(lián)動進行開口流量測量，對流體又不產(chǎn)生擾動和阻力，所以很受歡。超聲波流量計按測量原理分可分為時差式和多普勒式利用時差式原理制造的時差式超聲流量計近年來得到廣泛的關(guān)注和使用，是目前企事業(yè)使用多的一種超聲波流量計。利用多普勒效應(yīng)制造的超聲多普勒流量計多用于測量介質(zhì)有一定的懸浮顆?；驓馀萁橘|(zhì)，使用有一定的局限性，但卻解決了時差式超聲波流量計只能測量單一清澈流體的問題，也被認為是非接觸測量雙相流的理想儀表。山西液體渦輪流量計多少錢孔板流量計的節(jié)流裝置結(jié)構(gòu)簡單，且牢固、性能穩(wěn)定可靠，是工業(yè)中常用到的流量測量儀表；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城金屬轉(zhuǎn)子流量計價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289003828671/3963991.png"></div><p style="text-indent:25px">差壓式流量計的組成差壓式(也稱節(jié)流式)流量計是基于流體流動的節(jié)流原理，利用流體經(jīng)節(jié)流裝置時產(chǎn)生的壓力差而實現(xiàn)流量測量的。差壓式流量計一般是由能將流體的流量變換成差壓信號的節(jié)流量(孔扳、噴嘴)和用來測量壓差值的差壓計或差壓變送器及顯示儀表組成。這種流量計，目前在化工、煉油及其它工業(yè)中應(yīng)用很廣，應(yīng)用的歷史也較長久，因此已經(jīng)積累了豐富的實踐經(jīng)驗和完整的實驗資料。對于常用的孔板、噴嘴等節(jié)流裝置，國內(nèi)外已把它們標準化了，并稱為“標準節(jié)流裝置”。因此,這種流量計所用的標準節(jié)流裝置可以根據(jù)計算結(jié)果直接投入制造和使用，不必用實驗方法進行單獨標定。但對于非標準化的特殊節(jié)流裝置,在使用時，均應(yīng)進行個別標定。</p><p style="text-indent:25px">電磁流量計應(yīng)用一直都非常，由于是為供水企業(yè)水計量商業(yè)專門設(shè)計的，具有防水、防腐、防干擾、防雷擊的能力。那么在電磁流量計使用中也肯定有一些題目，我們就收集來分析一下。一、傳感器接地的題目電磁流量計傳感器電極檢測的流量信號是毫伏級，且以傳感器內(nèi)流體的電位為基準的，所以外來干擾對它的影響很大，因而，良好的接地很大程度上決定著流量計的丈量正確度。被測的流體本身作為電導體，必需排除其他不相關(guān)的電磁干擾。電極檢測出的電勢信號，不受外界寄生電勢的干擾。對傳感器應(yīng)有良好的單獨接地線，接地電阻小于10Ω。在連接傳感器的管道內(nèi)若涂有絕緣層或長短金屬管道時，傳感器兩側(cè)應(yīng)裝有接地環(huán)。孔板流量計一體型孔板安裝更簡單，無須引壓管，可直接接差壓變送器和壓力變送器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鹽城金屬轉(zhuǎn)子流量計價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289098819741/4521959.png"></div><p> 電極襯里附著物的影響在丈量有附著沉淀物的流體時，電極表面將受污染，經(jīng)常引起零點變動，故必需留意。零點變化和電極污染程度兩者的關(guān)系，要進行定量分析比較難題，但可以說，電極直徑越小，所受的影響越少，在使用中，應(yīng)留意電極的清污，以防止附著。在襯里上附著沉淀物時產(chǎn)生的誤差Δε，假如附著的厚度是一樣，則可由式：Δε=1-2/[1+(Kω/Kf)+(1-Kω/Kf)×(1-2t/D)2]計算，式中Kω、Kf分別為附著物和丈量流體的電導率，附著物厚度為t，直徑為D。若式中，Kω和Kf相等，則無誤差，附著物的電導率較低時，上式也成立，但由于會增加電極的輸出阻抗，因此受到限制，如絕緣性沉淀物浸在流體中就是這種情況。相反，如附著金屬粉末等，因高電導率的附著層，使感應(yīng)電勢短路，使電極輸出偏低，造成負偏差。在丈量具有沉淀附著物的流體時，除了選擇如玻璃或聚四氯乙烯等難以附著沉淀的襯里外，還應(yīng)增其流速。假如在流體中平均地含有氣泡，則丈量的是包括氣泡的體積流量，并且使所測流量值不不亂，而引入誤差。綜上所述，在選用流量計特別是大口徑電磁流量計時，應(yīng)考慮今后對傳感器的電極及襯里的維護題目。如選用上海光華·愛而美特儀器有限公司的刮刀電極或可更換式電極. </p> <p> <br /> </p> <p> <br /> 電磁流量計流量范圍大,口徑范圍寬；山西液體渦輪流量計多少錢</p><p style="text-indent:25px">質(zhì)量流量計的測量管無論是向上還是向下安裝，都要盡量使測量管與地平面保持垂直或水平。鹽城金屬轉(zhuǎn)子流量計價格</p><p style="text-indent:25px">孔板、楔形流量計一樣的原理孔板流量計、楔形流量計，屬于恒截面，變壓差型流量計。也就是說它們的概念相同孔板流量計，就是在管道內(nèi)部加裝一個中間開孔的圓板，然后測量蒸汽在孔板前后的壓力差，經(jīng)過計算換算出蒸汽的流量。因為蒸汽的流速在節(jié)流件處（孔板）形成局部收縮，靜壓力降低，流速增加，于是在節(jié)流件前后便產(chǎn)生了壓差。根據(jù)流動連續(xù)性方程（質(zhì)量守恒定律）和伯努利方程（能量守恒定律），流量的大小與差壓的大小存在一定的比例關(guān)系：M2∝ΔP。式中，M為流量；ΔP為差壓。通過引壓管將差壓信號引入差壓變送器，差壓變送器將差壓信號送入流量積算儀，積算儀將差壓信號換算成流量信號。同時通過溫度和壓力傳感器測出蒸汽的溫度和壓力，積算儀根據(jù)當時的溫度和壓力計算出補償后的流量。鹽城金屬轉(zhuǎn)子流量計價格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2572125.html</p></div></div></div></div></div><div id="zyulctf" class="page-right twoColRt"><div id="o89tctf" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="yxtf38a" 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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