南京氣體渦輪流量計廠家批發(fā) 推薦咨詢江蘇中徽測控儀表供應-b2b網(wǎng)站_b2b電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="渦街流量計工作狀態(tài)下的體積流量不受被測流體溫度、壓力、密度等熱工參數(shù)的影響，但液體或蒸汽的**終測量結果應是質(zhì)量流量，對于氣體，**終測量結果應是標準體積流量。質(zhì)量流量或標準體積流量都必須通過流體密度進行換算，必須考慮流體工況變化引起的流體密度"><meta name="keywords" content="南京氣體渦輪流量計廠家批發(fā),流量計"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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#f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>南京氣體渦輪流量計廠家批發(fā),流量計</p><p><span>***更新：</span>2020-08-29 16:14:04</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="po38z47" 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="txkj3zw" class="page-proshow02"><p class="title">詳細說明</p><div id="l33wxzb" class="box"><p><p> 渦街流量計工作狀態(tài)下的體積流量不受被測流體溫度、壓力、密度等熱工參數(shù)的影響，但液體或蒸汽的**終測量結果應是質(zhì)量流量，對于氣體，**終測量結果應是標準體積流量。質(zhì)量流量或標準體積流量都必須通過流體密度進行換算，必須考慮流體工況變化引起的流體密度變化。 </p> <p> 造成流量測量誤差的因素主要有：管道流速不均造成的測量誤差；不能準確確定流體工況變化時的介質(zhì)密度；將濕飽和蒸汽假設成干飽和蒸汽進行測量。這些誤差如果不加以限制或消除，南京氣體渦輪流量計廠家批發(fā)，渦街流量計的總測量誤差會很大，南京氣體渦輪流量計廠家批發(fā)。電磁流量計要求有非?？煽康慕拥兀暇怏w渦輪流量計廠家批發(fā)，要做好接地屏蔽，否則就會產(chǎn)生干擾電流。南京氣體渦輪流量計廠家批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京氣體渦輪流量計廠家批發(fā),流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837282109375/9143518.png"></div><p style="text-indent:25px">熱電偶和熱電阻溫度計屬于接觸式溫度計，由于其無法替代的優(yōu)點成為工礦企業(yè)和科研院所常用的溫度測量儀表。正確的安裝熱電偶和熱電阻傳感器是保證其測量精度和使用壽命的重要因素。下面根據(jù)平時的使用情況以幾種常用的安裝方式作些介紹，希望能給大家的實際工作提供點參考。首先熱電偶和熱電阻的安裝應盡可能保持垂直，以防止保護套管在高溫下產(chǎn)生變形，但在有流速的情況下，則必須迎著被測介質(zhì)的流向插入，以保證測溫元件與流體的充分接觸以保證其測量精度。安徽插入式巴類流量計找哪家電磁流量計的應用有一定局限性，它只能測量導電介質(zhì)的液體流量，不能測量非導電介質(zhì)的流量；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京氣體渦輪流量計廠家批發(fā),流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837414560547/9988671.png"></div><p> 流量計指示被測流量和(或)在選定的時間間隔內(nèi)流體總量的儀表，也是測量液體、氣體流量必不可少的儀表，大家平時想必也都見過許多不同類型的流量計。正確的安裝方式對流量計來說十分重要。 </p> <p> 流量測量的發(fā)展可追溯到古代的水利工程和城市供水系統(tǒng)。古羅馬凱撒時代已采用孔板測量居民的飲用水水量。公元**00年左右古埃及用堰法測量尼羅河的流量。我國的都江堰水利工程應用寶瓶口的水位觀測水量大小等等。17世紀托里拆利奠定差壓式流量計的理論基礎，這是流量測量的里程碑。自那以后，18、19世紀流量測量的許多類型儀表的雛形開始形成，如堰、示蹤法、皮托管、文丘里管、容積、渦輪及靶式流量計等。 </p><p> 渦街流量計(USF)特點 </p> <p> （1）抗振性能差。外來振動會使渦街流量計產(chǎn)生測量誤差，甚至不能正常工作。通道流體高流速沖擊會使渦街發(fā)生體的懸臂產(chǎn)生附加振動，使測量精度降低。大管徑影響更為明顯。 </p> <p> （2）對測量臟污介質(zhì)適應性差。渦街流量計的發(fā)生體極易被介質(zhì)臟污或被污物纏繞，改變幾何體尺寸，對測量精度造成極大影響。 </p> <p> <span style="font-size:12px;">（3）直管段要求高。**指出，渦街流量計直管段一定要保證前 40D 后 **，才能滿足測量要求。</span> </p> <p> <span style="font-size:12px;">（4）耐溫性能差。渦街流量計一般只能測量 300℃以下介質(zhì)的流體流量。</span> 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,特別在小、微流量方面有舉足輕重的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京氣體渦輪流量計廠家批發(fā),流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837184316406/1921827.png"></div><p> 絕大部分轉(zhuǎn)子流量計必須垂直安裝在無振動的管道上，不應有明顯的傾斜，流體自下而上流過儀表。轉(zhuǎn)子流量計中心線與鉛垂線間夾角一般不超過5度，高精度()儀表θ≤20°。如果θ=12°則會產(chǎn)生1%附加誤差。儀表無嚴格上游直管段長度要求，但也有制造廠要求(2-5)D長度的，實際上必要性不大。2、用于污臟流體的安裝應在儀表上游裝過濾器。帶有磁性耦合的金屬管轉(zhuǎn)子流量計用于可能含磁鐵性雜質(zhì)流體時，應在儀表前裝磁過濾器。要保持浮子和錐管的清潔，特別是小口徑儀表，浮子潔凈程度明顯影響測量值。3、轉(zhuǎn)子流量計擴大范圍度的安裝如果測量要求的流量范圍度寬，范圍度超過10時，可以在一臺儀表內(nèi)放兩只不同形狀和重量的浮子，小流量時取輕浮子讀數(shù)，浮子到頂部后取重浮子讀數(shù)，范圍度可擴大到50-100。電磁流量計流量范圍大,口徑范圍寬；山東液體渦輪流量計源頭直供廠家</p><p style="text-indent:25px">質(zhì)量流量計可以雙向使用。如果安裝方向與實際流向相反，修改變送器內(nèi)的流向組態(tài)即可。南京氣體渦輪流量計廠家批發(fā)</p><p> 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。 </p> <p> 超聲波流量計按測量原理分可分為時差式和多普勒式 </p> <p> 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注和使用，是目前企事業(yè)使用多的一種超聲波流量計。 </p> <p> 利用多普勒效應制造的超聲多普勒流量計多用于測量介質(zhì)有一定的懸浮顆粒或氣泡介質(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。南京氣體渦輪流量計廠家批發(fā)</p><p style="text-indent:25px">江蘇中徽測控儀表有限公司位于江蘇省淮安市，創(chuàng)立于2014-01-15。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下雷達料位計，雷達液位計，物位計，水位計深受客戶的喜愛。公司將不斷增強企業(yè)重點競爭力，努力學習行業(yè)先進知識，遵守行業(yè)規(guī)范，植根于儀器儀表行業(yè)的發(fā)展。江蘇中徽測控儀表秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”的經(jīng)營理念，***打造公司的核心競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1084542.html</p></div></div></div></div></div><div id="ncegdu3" class="page-right twoColRt"><div id="tnzldaw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kpbykmt" 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" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="2akmt2r" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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