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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="k0k2i2m" 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>金華高精度流量計(jì)哪家好,流量計(jì)</p><p><span>***更新：</span>2021-01-10 01:15:14</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="4qe2ymq" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">南儀測(cè)控技術(shù)(上海)有限公司</a></p><p><span>聯(lián)系人：</span>桂經(jīng)理</p><p><span>郵箱: </span>704766500@qq.com</p><p><span>電話: </span>17802114401</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>https://www.nanicontrol.com</p><p><span>手機(jī): </span>021-61559357</p><p><span>地址: </span>滬閔路1871號(hào)9甲幢4樓407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="i0sy24o" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="q2sag2w" class="box"><p><p style="text-indent:25px">一體化孔板流量計(jì)使用注意事項(xiàng)有哪些？一體化孔板流量計(jì)是集流量、溫度、壓力檢測(cè)功能于一體，金華高精度流量計(jì)哪家好，并能進(jìn)行溫度、壓力自動(dòng)補(bǔ)償?shù)男乱淮髁坑?jì)，采用先進(jìn)的微機(jī)技術(shù)與微功耗新技術(shù)，功能強(qiáng)，金華高精度流量計(jì)哪家好，結(jié)構(gòu)緊湊，操作簡(jiǎn)單，使用方便。一體化孔板流量計(jì)由傳感、變送、運(yùn)算顯示三較大部分主要適用于飽和蒸汽、過(guò)熱蒸汽、壓縮空氣、混和非易燃易爆氣體和熱水的工業(yè)計(jì)量，對(duì)上述流動(dòng)體的流量測(cè)量、顯示、計(jì)量及生產(chǎn)過(guò)程的在線自動(dòng)控制等用途均可采用。投入運(yùn)行重要的注意事項(xiàng)就是一定要在導(dǎo)壓管內(nèi)灌滿水或注入的高溫蒸汽冷卻后才能啟動(dòng)運(yùn)。一體化孔板流量計(jì)節(jié)流動(dòng)件前后的直管段必須是直的，安裝節(jié)流動(dòng)件用得直管段應(yīng)該是光滑的，如不光滑，流量系數(shù)應(yīng)乘以粗糙度修正稀疏。節(jié)流動(dòng)件前后要求一段足夠長(zhǎng)的直管段，節(jié)流動(dòng)件上游側(cè)為敞開(kāi)空間或直徑≥2D較大容器時(shí)，金華高精度流量計(jì)哪家好，則敞開(kāi)空間或較大容器與節(jié)流動(dòng)件之間的直管長(zhǎng)不得小于30D(15D)。若節(jié)流動(dòng)件和敞開(kāi)空間或較大容器之間尚有其它局部阻力件時(shí)，則除在節(jié)流動(dòng)件與局部阻力件之間設(shè)有附合規(guī)定的小直管段長(zhǎng)1外，從敞開(kāi)空間到節(jié)流動(dòng)件之間的直管段總長(zhǎng)也不得小于30D(15D)。量程比：流量計(jì)的流量上限值與下限值之比值。金華高精度流量計(jì)哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華高精度流量計(jì)哪家好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142302835889/3702973.png"></div><p style="text-indent:25px">流量計(jì)的電磁損耗有以較幾種形式：1.金屬測(cè)量管內(nèi)的渦流動(dòng)損耗：激磁電源的頻率越高、磁場(chǎng)強(qiáng)度越強(qiáng)、磁場(chǎng)的軸向長(zhǎng)度越長(zhǎng)、測(cè)量管的管徑越較大、壁厚越厚，則渦電流動(dòng)越較大、渦流動(dòng)損耗越較大，磁感應(yīng)強(qiáng)度滯后于磁場(chǎng)電流動(dòng)的相位差角也越較大。2.磁滯損耗：磁滯損耗是由于磁性材料的磁滯特性造成的。線圈通以交流動(dòng)電后，由于磁性材料的磁滯現(xiàn)象，磁通相位比電流動(dòng)相位滯后一定的角度（磁滯角）。當(dāng)鐵芯中的磁感應(yīng)強(qiáng)度沒(méi)有達(dá)到飽和時(shí)，磁滯損耗是很小的。因此，電磁流量計(jì)的磁軛、鐵芯采用高磁導(dǎo)率的電工矽鋼片做成，矽鋼片的碾壓方向與磁力線方向一致，這樣，磁滯損耗較較大較降，可以忽略不計(jì)。3.渦流動(dòng)損耗：磁軛內(nèi)的渦流動(dòng)損耗磁軛應(yīng)采用磁導(dǎo)率高、電動(dòng)率低的薄片，每片之間應(yīng)緣，可以減少損耗，通常對(duì)幾十赫茲的市電頻率，矽鋼片厚度為0.25~0.5mm就可以使渦流動(dòng)損耗不致超過(guò)容許值。金華加油站流量計(jì)廠家服務(wù)熱線示值：流量計(jì)指示的容積流量值。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華高精度流量計(jì)哪家好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142236116619/4092847.png"></div><p style="text-indent:25px">24V供電電磁流量計(jì)首要用于工業(yè)現(xiàn)場(chǎng)不允許運(yùn)用溝通電或從安全方面思索選用低壓直流電的場(chǎng)所，或是配流量積算儀由積算儀給電磁流量計(jì)中止供電，只能挑選24V電池供電，電磁流量計(jì)現(xiàn)在使用不是太多，首要針對(duì)一些現(xiàn)場(chǎng)沒(méi)有任何電源的情況下選用。一起也有毛病報(bào)警功用，上量設(shè)置并報(bào)警功用，正反相流量中止切換功用，帶485通訊的功用。電磁流量計(jì)除了供電方法有著多樣性之外，其內(nèi)涵功用也很強(qiáng)壯，可以用于測(cè)量液體介質(zhì)的流速，可以測(cè)量介質(zhì)的正向流量和反相流量，可以測(cè)量瞬時(shí)流量和累積流量?？梢宰龀梢惑w式和分體式兩種，根據(jù)客戶的懇求來(lái)定。</p><p style="text-indent:25px">磁流量計(jì)在測(cè)量各類電解溶液以及水性液體介質(zhì)的普遍適應(yīng)性，是其他類型的流量計(jì)無(wú)法比擬的，其優(yōu)勢(shì)表現(xiàn)為無(wú)壓損、高精度，測(cè)量精度不受流動(dòng)體密度、粘度、溫度、壓力和電導(dǎo)率變化的影響，傳感器感應(yīng)電壓信號(hào)與平均流動(dòng)速呈線性關(guān)系，因此測(cè)量精度高。測(cè)量管道內(nèi)沒(méi)有阻流動(dòng)部件，因此不會(huì)產(chǎn)生附加的壓力損失；測(cè)量管道內(nèi)亦無(wú)可動(dòng)部件，傳感器由此壽命極長(zhǎng)。由于感應(yīng)電壓信號(hào)是在整個(gè)充滿磁場(chǎng)的空間中形成的，是管道載面上的平均值，因此傳感器所需的直管段較短，長(zhǎng)度為5倍的管道直徑。目前，電磁流量計(jì)相關(guān)的測(cè)量?jī)x表，在石化、化工等行業(yè)企業(yè)有著較大量的應(yīng)用，在流量計(jì)量中擔(dān)任著重要的角色。從質(zhì)量流量計(jì)技術(shù)來(lái)看，質(zhì)量流量計(jì)的口徑也越來(lái)越大，能在各種大口徑的管道上使用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金華高精度流量計(jì)哪家好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142327474870/5073743.png"></div><p style="text-indent:25px">電磁流量計(jì)在造紙企業(yè)中的應(yīng)用：篩選漂白工段電磁流量計(jì)使用情況：?jiǎn)我允褂玫臄?shù)量排序，篩選洗滌工段應(yīng)屬。以典型規(guī)模35萬(wàn)噸紙廠為例，這兩個(gè)工段的電磁流量計(jì)使用數(shù)量要達(dá)到250套左右。電磁流量計(jì)使用在從各備料車間進(jìn)入抄紙車間的各漿池的流動(dòng)入量和從各漿池流動(dòng)出配漿池的流量測(cè)量點(diǎn)，共有五種漿料（化漿、脫墨漿、CTMP、機(jī)漿、損液漿）參與配漿過(guò)程。這里機(jī)漿和CTMP漿的溫度高達(dá)50-80℃，流量計(jì)襯里材料應(yīng)考慮選用PFA或PTEE。在漿液配比過(guò)程中各廠家為得到不同質(zhì)量的紙張，采用不同的漿液配比濃度。但往往由于一種漿料的細(xì)微差而導(dǎo)致成品不合格，從而造成了較大的物料和經(jīng)濟(jì)損失。所以各生產(chǎn)廠對(duì)這環(huán)節(jié)都非常重視，在每一根參加配比的管線中都裝有電磁流量計(jì)測(cè)量流動(dòng)入配漿總管的瞬時(shí)和總量流量，同時(shí)還在配漿管的較端部安裝在線濃度計(jì)以檢測(cè)配漿效果。如果和預(yù)定的濃度有偏差，立即調(diào)節(jié)閥門的開(kāi)度以調(diào)整相應(yīng)的漿料流量。這城不令要求電磁流量計(jì)精度高，同時(shí)要求良好的重復(fù)性和動(dòng)態(tài)響應(yīng)性。在上述場(chǎng)合，電磁流量計(jì)的口徑一般在DN50-DN150之間。電磁流量計(jì)用來(lái)測(cè)量電導(dǎo)率大于5μS/cm導(dǎo)電液體的體積流量。上海雷達(dá)流量計(jì)哪家好</p><p style="text-indent:25px">電磁流量計(jì)的傳感器結(jié)構(gòu)簡(jiǎn)單，測(cè)量管內(nèi)沒(méi)有可動(dòng)部件，也沒(méi)有任何阻礙流體流動(dòng)的節(jié)流部件。金華高精度流量計(jì)哪家好</p><p style="text-indent:25px">管壁取壓得V錐流量計(jì)，改變了負(fù)壓檢測(cè)口得位置，原來(lái)得取壓結(jié)構(gòu)負(fù)壓測(cè)量口位于錐體尾部。負(fù)壓通過(guò)測(cè)量管傳遞到變送器，這個(gè)傳遞過(guò)程，在測(cè)量飽和蒸汽或濕氣體時(shí)，凝析出來(lái)得水積存在負(fù)壓測(cè)量管中，會(huì)影響負(fù)壓傳遞，引起失真，導(dǎo)致在工藝閥門關(guān)閉后，流量計(jì)有虛假流量顯示。管壁取壓結(jié)構(gòu)改變了尾部取壓口得位置，與正壓一樣在管壁取壓，消除了負(fù)壓測(cè)量管得傳遞誤差，保證儀表測(cè)量精度。V錐流量計(jì)自2009年入使用以來(lái)，運(yùn)行穩(wěn)定可靠通過(guò)近幾年得實(shí)踐摸索，我們認(rèn)為用V錐流量計(jì)作為蒸汽流量測(cè)量得一次元件，解決了國(guó)內(nèi)外V型錐流量計(jì)普遍存在虛假流量得問(wèn)題（停汽后仍有流量顯示），尤其是配套使用FCL-280較強(qiáng)智能流量（熱量）積算儀進(jìn)行流量得溫度、壓力補(bǔ)償，可以解決自動(dòng)識(shí)別蒸汽狀態(tài)得問(wèn)題，較較大減少了企業(yè)整個(gè)蒸汽管網(wǎng)得不平衡量，是企業(yè)能源計(jì)量管理與計(jì)量貿(mào)易結(jié)算得理想工具。金華高精度流量計(jì)哪家好</p><p style="text-indent:25px">南儀測(cè)控技術(shù)(上海)有限公司主要經(jīng)營(yíng)范圍是五金、工具，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下壓力變送器，溫度傳感器，液位計(jì)，流量計(jì)深受客戶的喜愛(ài)。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于五金、工具行業(yè)的發(fā)展。南儀測(cè)控技術(shù)秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2775885.html</p></div></div></div></div></div><div id="cyaywci" class="page-right twoColRt"><div id="gu2c2qo" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ay2wkw2" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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