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href="http://www.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?天津氣體渦輪流量計批發(fā)價格江蘇中徽測控儀表供應</p><div id="zddbfdd" class="leftbox clearfix"><h1>天津氣體渦輪流量計批發(fā)價格江蘇中徽測控儀表供應</h1><div id="rz9v999" class="proBig"><div id="7x1pzr9" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289052754481/5890853.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="tz9xdnt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289052754481/5890853.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vbxnp99" 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>產品關鍵詞：</span>天津氣體渦輪流量計批發(fā)價格,流量計</p><p><span>***更新：</span>2021-01-25 08:08:33</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="3b9h5vh" 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="9xdfzfz" class="page-proshow02"><p class="title">詳細說明</p><div id="hr99f95" 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，天津氣體渦輪流量計批發(fā)價格，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，且以傳感器內流體的電位為基準的，所以外來干擾對它的影響很大，天津氣體渦輪流量計批發(fā)價格，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。在連接傳感器的管道內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 /> 浮子流量計是僅次于差壓式流量計應用范圍寬廣的一類流量計，天津氣體渦輪流量計批發(fā)價格,特別在小、微流量方面有舉足輕重的作用。天津氣體渦輪流量計批發(fā)價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津氣體渦輪流量計批發(fā)價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289052754481/5890853.png"></div><p style="text-indent:25px">孔板流量計管道安裝條件如下：（1）節(jié)流件前后的直管段必須是直的，不得有肉眼可見的彎曲。(2)用于安裝節(jié)流孔的直段必須平滑，如果不平滑，必須對流量系數(shù)應用粗糙度來修正稀疏。(3)流體的流動是為了在節(jié)流孔的前1d形成充分發(fā)達的紊流速度分布，使該分布成為均勻的軸對稱形1）直管段必須是圓的，而且對節(jié)流件前2D范圍，其圓度要求其甚為嚴格，并且有一定的圓度指標。具體衡量方法：(a)在節(jié)流孔前od、d/2、d、2d四個垂直管截面上，以較大的角度距離測定至少四個管內徑的測定值，取平均值d。任意內徑單測量值與平均值之差不得超過±0.3%（B）在節(jié)流件后，在OD和2D位置用上述方法測得8個內徑單測值，任意單測值與D比較，其*大偏差不得超過±2%2）節(jié)流件前后要求一段足夠長的直管段，這段足夠長的直管段和節(jié)流件前的局部阻力件形式有關和直徑比β有關。(4)節(jié)流孔上游側的第1電阻體和第2電阻體間的直管段的長度可以取第2電阻體的形狀和β=0.7(與實際的β值無關)的值的1/2天津氣體渦輪流量計批發(fā)價格質量流量計額安裝時建議在流量計進口處加過濾器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津氣體渦輪流量計批發(fā)價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png"></div><p> 智能型電磁流量計如果在日常使用過程中出現(xiàn)了一些問題，我們就要去認真的去找原因。原因很多，主要有下面幾個方面： </p> <p> 一、使用場所的原因 </p> <p> 使用場所如果不太好，比如現(xiàn)場有一些干擾，我們就要想辦法來解決這些問題。比如在接地上用單一地接地，或用傳感器和管道進行不導電的辦法；還有就是用屏蔽線給予保護。 </p> <p> 二、裝配程序的原因 </p> <p> 比如有的用戶把智能電磁流量計在容易有空氣的高處，或者安裝在不經常是滿管的地方，或者安裝在流體從上到下的堅著的管子上，這些都會使智能電磁流量計使用出現(xiàn)問題。 </p> <p> 三、測量介質的原因 </p> <p> 如果所測量的介質不是單單地導電液體，而是液氣混合，也就是說測量介質里面有許多氣泡，它就會地影響測量信號輸出地穩(wěn)定性。 </p> <p> <br /> </p> <p> 四、長期使用了的智能電磁流量計的內管里會積污垢，這樣也會影響電磁流量計的測量效果。 </p> <p> 五、電磁流量計的電源線，要做好防雷電的工作。特別是夏天，一定做注意這一點。 </p><p> 電磁流量計的安裝與調試比其它流量計復雜，且要求更嚴格。變送器和轉換器必須配套使用，兩者之間不能用兩種不同型號的儀表配用。在安裝變送器時，從安裝地點的選擇到具體的安裝調試，必須嚴格按照產品說明書要求進行。安裝地點不能有振動，不能有強磁場。在安裝時必須使變送器和管道有良好的接觸及良好的接地。變送器的電位與被測流體等電位。在使用時，必須排盡測量管中存留的氣體，否則會造成較大的測量誤差。電磁流量計用來測量帶有污垢的粘性液體時，粘性物或沉淀物附著在測量管內壁或電極上，使變送器輸出電勢變化，帶來測量誤差，電極上污垢物達到一定厚度，可能導致儀表無法測量。 </p> <p> <br /> </p> <p> <br /> 測量水蒸汽流量時，應用保溫材料一同包扎，必須時（如氣溫0℃以下）加伴熱管防止結冰。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津氣體渦輪流量計批發(fā)價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289184268193/6612766.png"></div><p> V錐流量計特點V錐流量計是從2000年左右才在中國國內出現(xiàn)的流量計。其工作原理和孔板流量計相同。介質通過V錐時,由于阻流件V錐的存在,使得流體的流過面積發(fā)生變化,流速發(fā)生變化,根據(jù)伯努利方程,流速變化引起了壓力的變化,該壓力的變化與流速之間有一定的關系。通過測量該壓力差達到測量流量的目的。雖然與孔板原理一樣,但是本質的區(qū)別在于孔板為中心收縮型節(jié)流裝置,而V錐為邊壁收縮型節(jié)流裝置。眾所周知,測量范圍窄是制約孔板使用的主要原因。測量范圍窄的主要原因是:孔板的流量系數(shù)隨雷諾數(shù)的變化而變化較大,孔板的突然節(jié)流導致孔板后發(fā)生比較大的漩渦,該漩渦的存在直接導致信號噪聲比較大,從而限制了它的測量范圍。而V錐流量計克服了以上缺點。 </p> <p> <br /> </p> <p> <br /> 污水流量計結構簡單、牢固可靠、使用壽命長。南京液體渦輪流量計銷售價格</p><p style="text-indent:25px">流體流動帶動渦輪轉動，渦輪的轉速轉換成電脈沖，用二次表顯示出數(shù)據(jù)，反應流體流速。天津氣體渦輪流量計批發(fā)價格</p><p> 按測量原理分類 </p> <p> 1.力學原理：屬于此類原理的儀表有利用伯努利定理的差壓式、轉子式；利用動量定理的沖量式、可動管式；利用牛頓第二定律的直接質量式；利用流體動量原理的靶式；利用角動量定理的渦輪式；利用流體振蕩原理的旋渦式、渦街式；利用總靜壓力差的皮托管式以及容積式和堰、槽式等等。 </p> <p> 2.電學原理：用于此類原理的儀表有電磁式、差動電容式、電感式、應變電阻式等。 </p> <p> 3.聲學原理：利用聲學原理進行流量測量的有超聲波式．聲學式(沖擊波式)等。 </p> <p> 4.熱學原理：利用熱學原理測量流量的有熱量式、直接量熱式、間接量熱式等。 </p> <p> 5.光學原理：激光式、光電式等是屬于此類原理的儀表。 </p> <p> 6.原于物理原理：核磁共振式、核幅射式等是屬于此類原理的儀表． </p> <p> 7.其它原理：有標記原理(示蹤原理、核磁共振原理)、相關原理等。天津氣體渦輪流量計批發(fā)價格</p></p><br /><p>文章來源地址: 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