四川孔板流量計銷售價格誠信互利江蘇中徽測控儀表供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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，"><meta name="keywords" content="四川孔板流量計銷售價格,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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clearfix"><h1>四川孔板流量計銷售價格誠信互利江蘇中徽測控儀表供應(yīng)</h1><div id="es42mmc" class="proBig"><div id="iysev2d" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312837362656250/2008561.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="r7x83fq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312837362656250/2008561.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8sjlceu" 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>四川孔板流量計銷售價格,流量計</p><p><span>***更新：</span>2020-09-02 15:15:26</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="z4fwyql" 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="dgqrc82" class="page-proshow02"><p class="title">詳細說明</p><div id="b2srdfv" class="box"><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(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。 </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(guān)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(yīng)制造的超聲多普勒流量計多用于測量介質(zhì)有一定的懸浮顆粒或氣泡介質(zhì)，使用有一定的局限性，四川孔板流量計銷售價格，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，四川孔板流量計銷售價格，四川孔板流量計銷售價格，也被認為是非接觸測量雙相流的理想儀表。流量計有堰槽式流量計，它是通過測量液位來反映流量。四川孔板流量計銷售價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川孔板流量計銷售價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837362656250/2008561.png"></div><p> 電磁流量計 </p> <p> 工作原理：基于法拉第電磁感應(yīng)定律。在電磁流量計中，測量管內(nèi)的導電介質(zhì)相當于法拉第試驗中的導電金屬桿，上下兩端的兩個電磁線圈產(chǎn)生恒定磁常當有導電介質(zhì)流過時，則會產(chǎn)生感應(yīng)電壓。管道內(nèi)部的兩個電極測量產(chǎn)生的感應(yīng)電壓。測量管道通過不導電的內(nèi)襯(橡膠，特氟隆等)實現(xiàn)與流體和測量電極的電磁隔離。 </p> <p> 工作特點：①具有雙向測量系統(tǒng);② 傳感器所需的直管段較短，長度為5倍的管道直徑；③ 壓力損失?。虎軠y量不受流體密度、粘度、溫度、壓力和電導率變化的影響；⑤主要應(yīng)用于污水處理方面。鹽城電磁流量計價格孔板流量計安裝時應(yīng)配有一段測量管,至少保持**DN、后5DN的等徑直管段，以提高測量精度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川孔板流量計銷售價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837414560547/9988671.png"></div><p> 超聲波流量計缺點: </p> <p> （1）超聲波流量計的溫度測量范圍不高，一般只能測量溫度低于200℃的流體。 </p> <p> （2）抗干擾能力差。易受氣泡、結(jié)垢、泵及其它聲源混入的超聲雜音干擾、影響測量精度。 </p> <p> （3）直管段要求嚴格，為前**,后5D。否則離散性差，測量精度低。 </p> <p> （4）安裝的不確定性，會給流量測量帶來較大誤差。 </p> <p> （5）測量管道因結(jié)垢，會嚴重影響測量準確度，帶來明顯的測量誤差，甚至在嚴重時儀表無流量顯示 </p> <p> （6）可靠性、精度等級不高（一般為1.5～2.5級左右），重復性差。 </p> <p> （7）使用壽命短（一般精度只能保證一年）。 </p> <p> <br /> </p><p> 如果在測量區(qū)內(nèi)有穩(wěn)態(tài)的渦流則會影響測量的穩(wěn)定性和測量的精度，這時可以增加前后直管段的長度、采用一個流量穩(wěn)定器或減少測量點的截面以穩(wěn)定流速分布。流量計可以水平和垂直安裝，但是應(yīng)該確保避免沉積物和氣泡對測量電極的影響，電極軸向保持水平為好。垂直安裝時，流體應(yīng)自下而上流動。傳感器不能安裝在管道的比較高位置，這個位置容易積聚氣泡。 </p> <p> 確保流量傳感器在測量時，管道中充滿被測流體，不能出現(xiàn)非滿管狀態(tài)。如管道存在非滿管或是出口有放空狀態(tài)，傳感器應(yīng)安裝在一根虹吸管上。 </p> <p> 電磁流量計的常規(guī)直管段要求是**D后5D，在有彎管、閥門的情況分別有不同的要求。孔板流量計前后產(chǎn)生一個靜壓力差,該壓力差與流量存在著一定的函數(shù)關(guān)系,流量越大,壓力差就越大；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川孔板流量計銷售價格,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837282109375/9143518.png"></div><p> 孔板流量計分類 </p> <p> 1、內(nèi)藏孔板 </p> <p> 這一類孔板是將孔板與測量管做成一體，一般用于小管徑（DN≤50mm），所以又稱小管徑孔板。 </p> <p> 特點： </p> <p> （1）、結(jié)構(gòu)緊湊，牢固耐用，工作可靠。 </p> <p> （2）、可以測小流量，現(xiàn)場安裝方便。 </p> <p> （3）、要求配制一段直管段（前5D、后2D需精密加工）。 </p> <p> 使用條件： </p> <p> （1）、公稱通徑：15-50mm </p> <p> （2）、公稱壓力：≤6.3MPa </p> <p> （3）、精確度（不確定度）：2.5% </p> <p> 2、限流孔板 </p> <p> 用于流體輸送過程的降壓、限流。利用節(jié)流件的壓力損失的特點，來達到降壓、限流的目的。 </p> <p> 特點：結(jié)構(gòu)簡單、耐用、工作可靠。 </p> <p> 不需要測量差壓。電磁流量計的測量原理不依賴流量的特性，如果管路內(nèi)有一定的湍流與漩渦產(chǎn)生在非測量區(qū)內(nèi)則與測量無關(guān)。福建液體渦輪流量計供貨商</p><p style="text-indent:25px">孔板在安裝前應(yīng)檢查節(jié)流裝置編號和尺寸是否符合管道安裝位置的要求。四川孔板流量計銷售價格</p><p style="text-indent:25px">當熱電偶和熱電阻傳感器安裝在戶外時，熱電偶和熱電阻傳感器的接線盒面蓋應(yīng)向上，入線口應(yīng)向下，以避免雨水或灰塵進入接線盒，而損壞熱電偶和熱電阻接線盒內(nèi)的接線影響其測量精度。另外熱電偶和熱電阻應(yīng)盡量安裝在有保護層的管道內(nèi)，以防止熱量散失。其次當熱電偶和熱電阻傳感器安裝在負壓管道中時，必須保證測量處具有良好的密封性，以防止外界冷空氣進入，使讀數(shù)偏低。智能電磁流量計在使用時我們要求被測介質(zhì)必須是地電位，一般都是通過管道或法蘭接地，如果連接傳感器的工藝管道相對被測介質(zhì)都是絕緣的，如：塑料管道或有絕緣襯里的管道，就必須選用接地環(huán)或帶接地電極的傳感器，使被測介質(zhì)處于地電位,在實際設(shè)計安裝時容易被忽視。四川孔板流量計銷售價格</p><p style="text-indent:25px">江蘇中徽測控儀表有限公司致力于儀器儀表，是一家貿(mào)易型公司。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。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造儀器儀表良好品牌。江蘇中徽測控儀表秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1129016.html</p></div></div></div></div></div><div id="jwwda7v" class="page-right twoColRt"><div id="zi9v8vs" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="xrv3tqx" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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