吉林流量計(jì)供應(yīng) 來電咨詢上海翼爾電子科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="孔板流量計(jì)保證測(cè)量精度的措施：1，孔板流量計(jì)進(jìn)行逐臺(tái)標(biāo)定。大家都知道，標(biāo)準(zhǔn)孔板只要設(shè)計(jì)制造參照相關(guān)標(biāo)準(zhǔn)，不需要實(shí)流標(biāo)定就可以直接使用。因?yàn)榱鞒鱿禂?shù)可以直接由軟件算出，但是計(jì)算機(jī)計(jì)算畢竟的比較理想的，和現(xiàn)場(chǎng)環(huán)境還是有一定差別的，所以，為了保證"><meta name="keywords" content="吉林流量計(jì)供應(yīng),流量計(jì)"><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 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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2mov87j" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>吉林流量計(jì)供應(yīng),流量計(jì)</p><p><span>***更新：</span>2020-12-08 07:22:31</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="es3hiri" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海翼爾電子科技有限公司</a></p><p><span>聯(lián)系人：</span>趙“S</p><p><span>郵箱: </span>yeertec@163.com</p><p><span>電話: </span>13361991561</p><p><span>傳真: </span>021_57155131</p><p><span>網(wǎng)址: </span>http://www.yeer-tec.com</p><p><span>手機(jī): </span>021-57488360</p><p><span>地址: </span>海灣旅游區(qū)莘奉公路4960號(hào)110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="vz4tlcz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="7yvn7m2" class="box"><p><p style="text-indent:25px">孔板流量計(jì)保證測(cè)量精度的措施：1，孔板流量計(jì)進(jìn)行逐臺(tái)標(biāo)定。大家都知道，標(biāo)準(zhǔn)孔板只要設(shè)計(jì)制造參照相關(guān)標(biāo)準(zhǔn)，不需要實(shí)流標(biāo)定就可以直接使用。因?yàn)榱鞒鱿禂?shù)可以直接由軟件算出，但是計(jì)算機(jī)計(jì)算畢竟的比較理想的，和現(xiàn)場(chǎng)環(huán)境還是有一定差別的，所以，為了保證測(cè)量精度，建議對(duì)每臺(tái)流量計(jì)進(jìn)行實(shí)流標(biāo)定，把標(biāo)定出的流出系數(shù)和計(jì)算結(jié)果進(jìn)行比對(duì)，吉林流量計(jì)供應(yīng)，算出差值，進(jìn)行修正。2，雷諾數(shù)修正，孔板流量計(jì)的流量系數(shù)和雷諾數(shù)之間有確定的關(guān)系，當(dāng)質(zhì)量流量變化時(shí)，雷諾數(shù)成正比變化，因而引起流量系數(shù)的變化。3,溫度對(duì)孔板流量計(jì)的影響及其修正，流體溫度變化引起密度的變化，從而導(dǎo)致差壓和流量之間的關(guān)系變化，其次，溫度變化引起管道內(nèi)徑，孔板開孔的變化，對(duì)溫度變化的修正，就是采取溫度儀表測(cè)量現(xiàn)場(chǎng)溫度進(jìn)而輸入到二次儀表中來修正溫度變化而導(dǎo)致的誤差。4，可膨脹性校正?？装辶髁坑?jì)測(cè)量蒸汽，氣體流量時(shí)，必須進(jìn)行流體的可膨脹性校正，具體校正系數(shù)可以參照節(jié)流裝置設(shè)計(jì)手冊(cè)。5，吉林流量計(jì)供應(yīng)，蒸汽質(zhì)量流量的計(jì)算，孔板流量計(jì)測(cè)量蒸汽時(shí)，先由差壓信號(hào)求得流量值，再由蒸汽溫度，壓力值查表得出密度，吉林流量計(jì)供應(yīng)，來計(jì)算蒸汽流量質(zhì)量。熱式質(zhì)量流量計(jì)的安裝拆卸是比較方便的。吉林流量計(jì)供應(yīng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林流量計(jì)供應(yīng),流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039044648371/6738453.png"></div><p style="text-indent:25px">流量計(jì)實(shí)際運(yùn)行工況與標(biāo)定工況環(huán)境條件不符，在現(xiàn)場(chǎng)使用過程中，常常因?yàn)楝F(xiàn)場(chǎng)的環(huán)境因素（溫度和壓力等）與標(biāo)定時(shí)的溫度和壓力有很大的差別，這樣不僅會(huì)使得在實(shí)際運(yùn)行時(shí)產(chǎn)生較大的測(cè)量誤差，與此同時(shí)流量計(jì)的標(biāo)定曲線也改變了，由此導(dǎo)致了在實(shí)際工況下使實(shí)際運(yùn)行的標(biāo)定曲線偏離了標(biāo)定曲線，這樣不僅使計(jì)量交接不公平，而且影響了原油交接雙方的經(jīng)濟(jì)利益。壓力對(duì)流量計(jì)的影響：由于壓力的作用，流量計(jì)殼體的彈性變形，隨著壓力增高，計(jì)量腔體積增大，由此引起轉(zhuǎn)子與殼體之間的間隙增大，漏失量也隨著增大。吉林流量計(jì)供應(yīng)對(duì)于開口或半滿管的管道，流量計(jì)應(yīng)安裝在U型管段處。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林流量計(jì)供應(yīng),流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039112724165/332983.png"></div><p style="text-indent:25px">流量計(jì)提高計(jì)量準(zhǔn)確度途徑：（1）管道要求：國(guó)家標(biāo)準(zhǔn)對(duì)計(jì)量管長(zhǎng)度、直管、圓度和內(nèi)表面粗糙度等都有嚴(yán)格的技術(shù)要求。當(dāng)計(jì)量管較小長(zhǎng)度不能滿足標(biāo)準(zhǔn)要求時(shí)，會(huì)給流量測(cè)量結(jié)果帶來偏差，其大小與孔徑比β和雷諾數(shù)有關(guān)，所以必須在孔板前面的直管上安裝整流器，才能保證計(jì)量準(zhǔn)確度。（2）安裝要求：孔板入口端面必須與管道軸線垂直，其偏差不能超過1度。安裝孔板時(shí)要注意裝入管道的方向，嚴(yán)禁反裝，必須符合標(biāo)準(zhǔn)對(duì)不同軸度公差的要求。法蘭、孔板與取壓裝置之間的密封墊片厚度不得大于0.03D。墊片的安裝不得突入直管段內(nèi)或取壓裝置內(nèi)腔，不得擋住取壓口及引起取壓位置的改變。新建站場(chǎng)必須在管道吹掃并運(yùn)行幾天后，再將孔板安裝到節(jié)流裝置上，以免孔板被氣體中的液、固體雜質(zhì)損傷或污染。</p><p style="text-indent:25px">流量計(jì)的外表保溫維護(hù)箱辦法：a、電熱管伴熱保溫箱，由箱體、加熱器、外表托架等三大部分構(gòu)成，其構(gòu)造方式與維護(hù)箱一樣，所不一樣的是箱內(nèi)裝有電器加熱設(shè)備，電熱設(shè)備是由電熱管，溫度操控器構(gòu)成，箱體旁邊面裝有插座，當(dāng)接通電源后，箱內(nèi)加熱到所需溫度時(shí)，再由溫度操控器接通電源持續(xù)升溫。經(jīng)過重復(fù)作業(yè)使箱內(nèi)溫度能保持在必定范圍內(nèi)。b、蒸氣管伴熱保溫箱，伴熱管是用金屬管制成S型構(gòu)造.箱體上下選用焊接式穿板接頭與伴熱管焊接而成，伴熱管設(shè)備在箱內(nèi)為進(jìn)步下出，經(jīng)過蒸氣在管腔內(nèi)的循環(huán)而到達(dá)加熱意圖。伴熱管資料通常分為兩種，即紫銅管，無縫鋼管（碳鋼）。c、為要害外表箱再加一層保溫棉，在保溫箱門口和進(jìn)出管線口加膠密封，可到達(dá)外表體系更佳保溫防凍作用。流量計(jì)要盡量避開鐵磁性物體及具有強(qiáng)電磁場(chǎng)的設(shè)備。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林流量計(jì)供應(yīng),流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039025526743/650853.png"></div><p style="text-indent:25px">通?？装辶髁坑?jì)的測(cè)量準(zhǔn)確度能夠滿足標(biāo)準(zhǔn)的要求，但在實(shí)際使用中，由于節(jié)流裝置的設(shè)計(jì)、制造、安裝和使用不符合標(biāo)準(zhǔn)要求等原因，影響了流量的測(cè)量準(zhǔn)確度。通過對(duì)孔板節(jié)流裝置測(cè)量原理、安裝要求、儀表的選擇等因素的分析，指出影響孔板流量計(jì)測(cè)量準(zhǔn)確度的根本因素是節(jié)流裝置的幾何形狀和流動(dòng)狀態(tài)是否偏離設(shè)計(jì)標(biāo)準(zhǔn)。只有使流量計(jì)在正確的工況下運(yùn)行，才能減少。天然氣計(jì)量中，使用較多的是孔板流量計(jì)，它由節(jié)流裝置、導(dǎo)壓管、差壓計(jì)、壓力計(jì)和溫度計(jì)等組成。正常情況下，它的測(cè)量準(zhǔn)確度能滿足國(guó)家標(biāo)準(zhǔn)和石油部標(biāo)準(zhǔn)的要求。但在實(shí)際工作中，由于節(jié)流裝置設(shè)計(jì)、制造、安裝和使用不符合標(biāo)準(zhǔn)要求，參數(shù)選擇不當(dāng)，用戶負(fù)荷變化，人工取值不準(zhǔn)等原因，都不同程度地影響著流量測(cè)量的準(zhǔn)確度。因此，找出孔板流量計(jì)測(cè)量誤差產(chǎn)生的原因及解決辦法是關(guān)系到計(jì)量準(zhǔn)確的重要工作。浮子流量計(jì)，又稱轉(zhuǎn)子流量計(jì)、金屬轉(zhuǎn)子流量計(jì)，是變面積式流量計(jì)的一種。外敷式流量計(jì)供應(yīng)商</p><p style="text-indent:25px">流量計(jì)在工程上常用單位m3/h。吉林流量計(jì)供應(yīng)</p><p style="text-indent:25px">浮子流量計(jì)有就地顯示型和智能遠(yuǎn)傳型，帶有指針顯示，瞬時(shí)流量，累積流量，液晶顯示，上下限報(bào)警輸出，累積脈沖輸出，標(biāo)準(zhǔn)的二線制4-20mA電流輸出等多種形式，為用戶提供了非常廣闊的選擇空間。另外該儀表采用高質(zhì)量的MCU微處理系統(tǒng)，保證了流量計(jì)在各種應(yīng)用場(chǎng)所的優(yōu)良性能。浮子流量計(jì)使用時(shí)指針抖動(dòng)的原因：1.浮子流量計(jì)輕微指針抖動(dòng)：一般由于介質(zhì)波動(dòng)引起，可采用增加阻尼的方式來克服。2.中度指針抖動(dòng)：一般由于介質(zhì)流動(dòng)狀態(tài)造成。對(duì)于氣體一般由于介質(zhì)操作壓力不穩(wěn)造成，可采用穩(wěn)壓或穩(wěn)流裝置來克服或加大浮子流量計(jì)氣阻尼。3.劇烈指針抖動(dòng)：主要由于介質(zhì)脈動(dòng)，氣壓不穩(wěn)或用戶給出的氣體操作狀態(tài)的壓力、溫度、流量與金屬管浮子流量計(jì)實(shí)際的狀態(tài)不符，有較大差異造成浮子流量計(jì)過量程。吉林流量計(jì)供應(yīng)</p><p style="text-indent:25px">上海翼爾電子科技有限公司總部位于海灣旅游區(qū)莘奉公路4960號(hào)110室，是一家電子科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓，電工設(shè)備，電氣設(shè)備、儀器儀表，電器設(shè)備，五金標(biāo)準(zhǔn)件，五金交電，電線電纜，金屬制品，機(jī)械設(shè)備的批發(fā)、零售，儀器儀表及機(jī)電設(shè)備的加工（限分支機(jī)構(gòu)經(jīng)營(yíng)）。的公司。上海翼爾電子擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供流量，壓力，溫度，物液位。上海翼爾電子不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。上海翼爾電子創(chuàng)始人趙晉生，始終關(guān)注客戶，創(chuàng)新科技，竭誠(chéng)為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2316935.html</p></div></div></div></div></div><div id="yhrynzg" class="page-right twoColRt"><div id="xhbn7ac" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kebysol" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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