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src="https://tyunfile.71360.com/UploadFile/jszhck/637436289134746609/1367639.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="tc3rk39" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289134746609/1367639.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="d8nwicq" 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)品關鍵詞：</span>湖南電磁流量計多少錢,流量計</p><p><span>***更新：</span>2020-12-30 06:09:53</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="8vcjvxj" 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="l8pbnov" class="page-proshow02"><p class="title">詳細說明</p><div id="bpo892j" class="box"><p><p> 電磁流量計應用一直都非常，由于是為供水企業(yè)水計量商業(yè)專門設計的，具有防水、防腐、防干擾，湖南電磁流量計多少錢、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。對傳感器應有良好的單獨接地線，接地電阻小于10Ω，湖南電磁流量計多少錢，湖南電磁流量計多少錢。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，傳感器兩側應裝有接地環(huán)。 </p> <p> <br /> </p> <p> <br /> 智能電磁流量計是一種流量儀表，因為它是根據(jù)傳統(tǒng)的物理電磁感應原理制成的，擁有著非常獨特的特點；湖南電磁流量計多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南電磁流量計多少錢,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289134746609/1367639.png"></div><p style="text-indent:25px">安裝排污減壓閥楔形流量計+雙法蘭變送器的流量檢測模式，在取壓閥門與雙法蘭連接部件之間要設置排污泄壓閥門。這個閥門非常重要，在流量計校準過程中既可以保證正負雙法蘭之間的受壓一致都為大氣壓確保校準可靠，更能保證維修人員的安全。若雙法蘭變送器損壞需要更換，通過排污泄壓閥門能夠判斷取壓一次閥門是否滲漏，只有在確保安全的情況下，才能拆卸雙法蘭變送器。很多工程安裝過程中，省略了排污泄壓閥門的安裝，這是不正確的，一定要進行整改。安裝排污閥的楔形流量計維護維修工作更加方便淮安熱式氣體質量流量計供貨廠質量流量傳感器安裝應使傳感器流向標識與流體流向一致。并使箭頭指向與變送器內(nèi)部組態(tài)的流量方向一致。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南電磁流量計多少錢,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289204346373/8482943.png"></div><p> 渦輪流量計,是速度式流量計中的主要種類,它采用多葉片的轉子(渦輪)感受流體平均流速,從而且推導出流量或總量的儀表。 </p> <p> 一般它由傳感器和顯示儀兩部分組成,也可做成整體式。 </p> <p> 渦輪流量計和容積式流量計、科里奧利質量流量計稱為流量計中三類重復性、精度比較好的產(chǎn)品,作為**類型流量計之一,其產(chǎn)品已發(fā)展為多品種、多系列批量生產(chǎn)的規(guī)模。 </p> <p> 優(yōu)點: </p> <p> (1)高精度,在所有流量計中,屬于較精確的流量計; </p> <p> (2)重復性好; </p> <p> (3)元零點漂移,抗干擾能力好; </p> <p> (4)范圍度寬; </p> <p> (5)結構緊湊。 </p> <p> 缺點: </p> <p> (1)不能長期保持校準特性; </p> <p> (2)流體物性對流量特性有較大影響。 </p> <p> 應用概況: </p> <p> 渦輪流量計在以下一些測量對象獲得廣泛應用:石油、有機液體、無機液、液化氣、天然氣和低溫流 </p> <p> <br /> </p><p style="text-indent:25px">水平管道基本安裝方式對于水平管道，測量氣體時推薦安裝在管道上方160度范圍內(nèi)，尤其對于有大量水粉的氣體時，我們只推薦這樣安裝;測量液體時推薦安裝在管道下方160度范圍內(nèi)，尤其對于含有大量氣體的液體時，我們只推薦這樣安裝;但有一點要注意，對于那些極易氣化的液體，如液態(tài)的烯烴類介質，安裝時插入方向同氣體，在管道上方。測量蒸汽時只推薦傳感器安裝在管道下方160度內(nèi)，并且要使傳感器處于整個測量裝置的比較高點。垂直管道基本安裝方式對于垂直管道，理論上可以在360度內(nèi)安裝。對于含有大量水分的濕氣體，推薦傳感器安裝時向上傾斜5度，對于含有大量氣體的液體，推薦傳感器安裝時向下傾斜5度，如右圖所示。對于蒸汽，推薦傳感器安裝時下傾斜5度，如右圖，且傳感器應該處于整個測量系統(tǒng)中的比較高點。威力巴安裝所需直管段小直管段要求—彎管后2D安裝如圖所示。當管道上、下游的直管段不夠長時，我們推薦在彎管后2倍管道內(nèi)徑處安裝威力巴，因在彎管后的流體剖面較復雜，需將流體系數(shù)K做適當?shù)恼{(diào)整。調(diào)整K系數(shù)后，測量精度為±3%。因質量流量計是依據(jù)科氏力原理工作的，為避免重力對計量精度的影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南電磁流量計多少錢,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289184268193/6612766.png"></div><p style="text-indent:25px">渦街流量計的局限性：（1）口徑越大，分辨率越低，通常滿管時流量計用于DN400以下。（2）對管道機械振蕩較活絡，不宜用于強振蕩場所。（3）當流體有壓力脈動或流量脈動時，示值大幅度偏高，影響較大，因而不適用于脈動流。（4）流體溫度太高時，傳感器還有艱難，通常流體溫度≤420℃?？装辶髁坑嫷木窒扌裕海?）規(guī)模度窄，因為外表信號（差壓）與流量為平方關系，通常規(guī)模度*3:1～4:1。（2）丈量度在流量計中屬中等水平。因為很多因素的影響撲朔迷離，度難以進步。（3）節(jié)流裝置與差壓顯現(xiàn)外表之間引壓管線為薄弱環(huán)節(jié)，易發(fā)生走漏、阻塞及凍住、信號失真等毛病。（4）壓損大（指孔板、噴嘴）。（5）現(xiàn)場裝置條件要求較高，如需較長的直管段（指孔板、噴嘴），通常難以滿意流量計有堰槽式流量計，它是通過測量液位來反映流量。淮安熱式氣體質量流量計供貨廠</p><p style="text-indent:25px">電磁流量計要求有非?？煽康慕拥?，要做好接地屏蔽，否則就會產(chǎn)生干擾電流。湖南電磁流量計多少錢</p><p style="text-indent:25px">孔板流量計的常見問題主要有以下幾類：被測流體特性的影響比方在用孔板流量計丈量自然氣流量的時分，思索到自然氣自身的性質，會隨著外界環(huán)境溫度的變化而發(fā)作復雜的改動，從而會影響到流量計的丈量精度。關于自然氣等密度會發(fā)作改動的介質的丈量，必需首先肯定一個穩(wěn)定的工作溫度和正常的壓力。盡量減小外界溫度變化所帶來的壓力和溫度隨之發(fā)作的變化，大水平減小密度變化和緊縮系數(shù)變化，從而保證丈量的精確度。低密度氣體對某些丈量辦法的呈現(xiàn)艱難，此時就要改動已選定的丈量辦法，或者作溫度，并及時停止壓力修正，以保證丈量精確精確度。儀表性能的影響孔板流量計自身可能惹起誤差的緣由主要有：孔板入口直角銳利度；管徑尺寸與原方案不符；孔板厚度存在誤差；節(jié)流件附件產(chǎn)生臺階、偏心率；孔板上游端面的平度；環(huán)室尺寸產(chǎn)生臺階、偏心率；取壓的位置；焊接、焊縫能否突出；取壓孔加工不標準或呈現(xiàn)梗塞；節(jié)流件的不同軸度等等。這些要素都有可能影響孔板的反復性，反復性是由儀器自身的結構原理與制造質量所決議的，它的過程控制在實踐應用中是很重要的指標。而準確度除了取決于反復性之外，還與量值標定系統(tǒng)有關系。在實踐應用中，儀表性能的反復性被許多要素干擾。湖南電磁流量計多少錢</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2625493.html</p></div></div></div></div></div><div id="7nu3s99" class="page-right twoColRt"><div id="c7r2uty" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="laxjard" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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