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tcPro"><section class="home-main container clearfix"><div id="w2wevkb" class="twoCol"><div id="ri9wtvs" 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-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_gydqew/">高壓電器</a>?<a href="http://www.cdcfah.com/cp/third-gydqew_gykggek/">高壓開關(guān)柜</a>?瀘州渦街流量計報價 **** 成都皖川科技供應(yīng)</p><div id="xwlcj8s" class="leftbox clearfix"><h1>瀘州渦街流量計報價 **** 成都皖川科技供應(yīng)</h1><div id="eynkrj7" class="proBig"><div id="c2w7btf" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349011669922/7256332.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="blv8uwt" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349011669922/7256332.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vfhryfh" 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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>瀘州渦街流量計報價,渦街流量計</p><p><span>***更新：</span>2020-07-27 11:13:37</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="ysz8egd" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都皖川科技有限公司</a></p><p><span>聯(lián)系人：</span>朱成生</p><p><span>郵箱: </span>cdwckjgs@sina.com</p><p><span>電話: </span>18755046999</p><p><span>傳真: </span>028_87463776</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>028-87463776</p><p><span>地址: </span>四川省成都市青羊區(qū)青羊萬達(dá)廣場SOHO公寓2-2-1138室</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="dxuyprt" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="lkcugnp" class="box"><p><p> 原理 </p> <p> 渦街流量計是根據(jù)卡門渦街原理(Kármán Vortex Street)測量氣體、蒸汽或液體的體積流量、標(biāo)況的體積流量或質(zhì)量流量的體積流量計。并可作為流量變送器應(yīng)用于自動化控制系統(tǒng)中。 </p> <p> 渦街流量計是應(yīng)用流體振蕩原理來測量流量的，瀘州渦街流量計報價，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)，可用下式表示：式中：為旋渦的釋放頻率，單位為Hz；v為流過旋渦發(fā)生體的流體平均速度，單位為m/s；d為旋渦發(fā)生體特征寬度，單位為m；St為斯特勞哈爾數(shù)（Strouhal number），無量綱，它的數(shù)值范圍為0.14－0.27。 </p> <p> St是雷諾數(shù)的函數(shù)，瀘州渦街流量計報價，當(dāng)雷諾數(shù)Re在范圍內(nèi)，St值約為0.2，瀘州渦街流量計報價。在測量中，要盡量滿足流體的雷諾數(shù)在，此時旋渦頻率由此，通過測量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v，再由式可以求出流量q，其中A為流體流過旋渦發(fā)生體的截面積瀘州渦街流量計報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="瀘州渦街流量計報價,渦街流量計" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349011669922/7256332.jpg"></div><p> 檢定周期為二年。 </p> <p> 渦街流量傳感器應(yīng)用內(nèi)徑范圍為25-300mm（滿管式） </p> <p> 插入式渦街流量傳感器應(yīng)用內(nèi)徑范圍為350-1200mm(插入式)。 </p> <p> 滿管式測量液體精度為1% </p> <p> 測量蒸汽和氣體精度為1.5% </p> <p> 插入式測量液體精度為2% </p> <p> 測量蒸汽和氣體精度為2.5% </p> <p> 被測介質(zhì)溫度為-20~150℃、-40~250℃、+100~350℃（*管式） </p> <p> 輸出信號為三線制電壓脈沖，三線制4-20mA、二線制4-20mA。 </p> <p> <br /> </p> <p> 功能 </p> <p> 表體中同時集成溫壓補償補償功能，可測量流體的標(biāo)準(zhǔn)體積流量或標(biāo)準(zhǔn)質(zhì)量流量。 </p> <p> 全智能化、數(shù)字化電路設(shè)計，可自動補償被測流體密度或標(biāo)況體積計算。 </p> <p> 全新的數(shù)字濾波和修正功能使流量測量更加精細(xì)可靠。 </p> <p> 電池供電型無需外接電源既可連續(xù)工作兩年以上。 </p> <p> 全新點陣漢字液晶顯示，使用操作更方便。 </p> <p> <br /> </p> <p> <br /> 瀘州渦街流量計報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="瀘州渦街流量計報價,渦街流量計" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349132265625/2309518.jpg"></div><p> 特點 </p> <p> 1、結(jié)構(gòu)簡單而牢固，無可動部件，可靠性高，長期運行十分可靠。 </p> <p> 2、安裝簡單，維護(hù)十分方便。 </p> <p> 3、檢測傳感器不直接接觸被測介質(zhì)，性能穩(wěn)定，壽命長。 </p> <p> 4、輸出是與流量成正比的脈沖信號，無零點漂移，精度高。 </p> <p> 5、測量范圍寬，量程比可達(dá)1：10。壓力損失較小，運行費用低，更具節(jié)能意義。 </p> <p> 6、在一定的雷諾數(shù)范圍內(nèi),輸出信號頻率不受流體物理性質(zhì)和組份變化的影響，儀表系數(shù)*與旋渦發(fā)生體的形狀和尺寸有關(guān)，測量流體體積流量時無需補償，調(diào)換配件后一般無需重新標(biāo)定儀表系數(shù)。應(yīng)用范圍廣，蒸汽、氣體、液體的流量均可測量。 </p><p> 渦街流量計也稱之為旋渦流量計或卡門渦街流量計 </p> <p> 綜合吸收發(fā)達(dá)國家先進(jìn)技術(shù)和總結(jié)多年研究生產(chǎn)經(jīng)驗的基礎(chǔ)上進(jìn)行精心設(shè)計的產(chǎn)品，實現(xiàn)了產(chǎn)品智能化、標(biāo)準(zhǔn)化、系列化、通用化、生產(chǎn)模具化、確保產(chǎn)品質(zhì)量的美觀性。該產(chǎn)品具有電路先進(jìn)、功耗微低、量程比寬、結(jié)構(gòu)簡單、阻力損失小、堅固耐用、用途廣、使用壽命長、工作穩(wěn)定、便于安裝調(diào)試等特點。 </p> <p> <p> 原理 </p> <p> 在流體中設(shè)置三角柱型旋渦發(fā)生體，則從旋渦發(fā)生體兩側(cè)交替地產(chǎn)生有規(guī)則的旋渦，這種旋渦稱為卡門旋渦，旋渦列在旋渦發(fā)生體下游非對稱地排列。 </p> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="瀘州渦街流量計報價,渦街流量計" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349449208984/8611731.jpg"></div><p> 選型要點 </p> <p> 渦街流量計正確選型才能保證渦街流量計更好的使用。選用什么種類的渦街流量計應(yīng)根據(jù)被測流體介質(zhì)的物理性質(zhì)和化學(xué)性質(zhì)來決定?使渦街流量計的通徑、流量范圍、襯里材料、電極材料和輸出電流等都能適應(yīng)被測流體的性質(zhì)和流量測量的要求。 </p> <p> 1、精密功能檢查 </p> <p> 精度等級和功能根據(jù)測量要求和使用場合選擇儀表精度等級，做到經(jīng)濟(jì)合算。比如用于貿(mào)易結(jié)算、產(chǎn)品交接和能源計量的場合，應(yīng)該選擇精度等級高些，如1.0級、0.5級，或者更高等級; </p> <p> 用于過程控制的場合，根據(jù)控制要求選擇不 </p> <p> 同精度等級;有些**是檢測一下過程流量，無需做精確控制和計量的場合，可以選擇精度等級稍低的，如1.5級、2.5級，甚至 </p> <p> 4.0級，這時可以選用價格低廉的插入式渦街流量計。 </p> <p> 2、可測量的介質(zhì) </p> <p> 測量介質(zhì)流速、儀表量程與口徑 </p> <p> 測量一般的介質(zhì)時，渦街流量計的滿度流量可以在測量介質(zhì)流速0.5—12m/s范圍內(nèi) 選用，范圍比較寬。選擇儀表規(guī)格(口徑)不一 </p> <p> 定與工藝管道相同，應(yīng)視測量流量范圍是否在流速范圍內(nèi)確定，即當(dāng)管道流速偏低，不能滿足流量儀表要求時或者在此流速下測量準(zhǔn) </p> <p> 確度不能保證時，需要縮小儀表口徑，從而提高管內(nèi)流速，得到滿意測量結(jié)果。瀘州渦街流量計報價</p><p style="text-indent:25px">瀘州渦街流量計報價</p><p style="text-indent:25px">在人類社會進(jìn)入知識經(jīng)濟(jì)時代、信息技術(shù)高速發(fā)展的背景下，儀器儀表及其測量控制技術(shù)得到日益廣泛應(yīng)用，給儀器儀表行業(yè)的快速發(fā)展提供了良好契機(jī)。經(jīng)過近十年來的建設(shè)與發(fā)展，我國儀器儀表已經(jīng)初步形成產(chǎn)品門類品種比較齊全，具有一定生產(chǎn)規(guī)模和開發(fā)能力的產(chǎn)業(yè)體系，成為亞洲除日本以外第二大儀器儀表生產(chǎn)國。在計算機(jī)和互聯(lián)網(wǎng)的急速發(fā)展到整個世界的背景下，儀器儀表也開始向網(wǎng)絡(luò)化突進(jìn)，結(jié)合***的科技設(shè)備，通過廣域網(wǎng)和局域網(wǎng)直接控制儀器儀表，對公司的管理，經(jīng)營一體化，應(yīng)用模式的分析等各大方面產(chǎn)生影響。有限責(zé)任公司（自然）企業(yè)通過網(wǎng)絡(luò)這個平臺與客戶直接的交流，突破了世界和空間的限制，**遠(yuǎn)程操控對儀器儀表進(jìn)行維護(hù)和分析。高科技的產(chǎn)品也隨之而來。伴隨移動互聯(lián)網(wǎng)的爆發(fā)式增長，如今，它已經(jīng)漸漸取代電子商務(wù)成為了整個互聯(lián)網(wǎng)產(chǎn)業(yè)增速**快的領(lǐng)域，而移動終端的入口也隨即成為了傳統(tǒng)行業(yè)的必爭之地。[ "耐磨熱電偶", "氣體檢測儀器", "便攜式氣體報警控制器", "雙金屬溫度計" ]行業(yè)進(jìn)軍移動互聯(lián)網(wǎng)實現(xiàn)線上發(fā)展勢在必行。我國貿(mào)易型發(fā)展迅速，年均增長速度超過20%。在相關(guān)報告中可以***了解到在我國工業(yè)基礎(chǔ)貿(mào)易型產(chǎn)業(yè)現(xiàn)狀研究的成果。瀘州渦街流量計報價</p><p style="text-indent:25px">成都皖川科技有限公司創(chuàng)建于2011-12-30，注冊資金 100-200萬元，辦公設(shè)施齊全，辦公環(huán)境優(yōu)越，已***實行網(wǎng)絡(luò)化辦公，**提高了速度和效率。皖纜是成都皖川科技有限公司的主營品牌，是專業(yè)的研發(fā)、銷售計算機(jī)軟硬件;計算機(jī)系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機(jī)械設(shè)備、閥門、水泵、電線電纜、通訊器材(不含無線廣播電視發(fā)射及衛(wèi)星地面接收設(shè)備)、醫(yī)療器械(***一類)、實驗設(shè)備、化工產(chǎn)品(不含危險化學(xué)品)、五金交電、照明設(shè)備。公司，擁有自己**的技術(shù)體系。公司不**提供專業(yè)的研發(fā)、銷售計算機(jī)軟硬件;計算機(jī)系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機(jī)械設(shè)備、閥門、水泵、電線電纜、通訊器材(不含無線廣播電視發(fā)射及衛(wèi)星地面接收設(shè)備)、醫(yī)療器械(***一類)、實驗設(shè)備、化工產(chǎn)品(不含危險化學(xué)品)、五金交電、照明設(shè)備。,同時還建立了完善的售后服務(wù)體系,為客戶提供質(zhì)量的產(chǎn)品和服務(wù)。成都皖川科技有限公司主營業(yè)務(wù)涵蓋[ "耐磨熱電偶", "氣體檢測儀器", "便攜式氣體報警控制器", "雙金屬溫度計" ]，堅持“質(zhì)量***、質(zhì)量服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/717463.html</p></div></div></div></div></div><div id="raxu8wi" class="page-right twoColRt"><div id="3hyacel" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="akmjbdk" class="recomPic likePro"><a 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