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href="http://www.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://www.cdcfah.com/cp/second-yiqiyibiao_llyb/">流量儀表</a>?<a href="http://www.cdcfah.com/cp/third-llyb_liuliangji/">流量計(jì)</a>?南京液體流量計(jì)廠家電話誠信服務(wù) 南儀測控技術(shù)供應(yīng)</p><div id="hjlizbs" class="leftbox clearfix"><h1>南京液體流量計(jì)廠家電話誠信服務(wù) 南儀測控技術(shù)供應(yīng)</h1><div id="jyp82lf" class="proBig"><div id="kd3izqc" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711026734705/3791399.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="fj7kh88" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711026734705/3791399.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="pde9ja2" 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>南京液體流量計(jì)廠家電話,流量計(jì)</p><p><span>***更新：</span>2021-01-14 00:27:58</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="xlrawso" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">南儀測控技術(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="d73dpbs" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ftaz3z8" class="box"><p><p style="text-indent:25px">24V供電電磁流量計(jì)首要用于工業(yè)現(xiàn)場不允許運(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)場沒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，南京液體流量計(jì)廠家電話，可以用于測量液體介質(zhì)的流速，可以測量介質(zhì)的正向流量和反相流量，可以測量瞬時(shí)流量和累積流量，南京液體流量計(jì)廠家電話。可以做成一體式和分體式兩種，根據(jù)客戶的懇求來定。從質(zhì)量流量計(jì)技術(shù)來看，南京液體流量計(jì)廠家電話，質(zhì)量流量計(jì)的口徑也越來越大，能在各種大口徑的管道上使用。南京液體流量計(jì)廠家電話</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京液體流量計(jì)廠家電話,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711026734705/3791399.png"></div><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、壓力檢測功能于一體，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)，結(jié)構(gòu)緊湊，操作簡單，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)體的流量測量、顯示、計(jì)量及生產(chǎn)過程的在線自動(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的直管段，節(jié)流動(dòng)件上游側(cè)為敞開空間或直徑≥2D較大容器時(shí)，則敞開空間或較大容器與節(jié)流動(dòng)件之間的直管長不得小于30D(15D)。若節(jié)流動(dòng)件和敞開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1外，從敞開空間到節(jié)流動(dòng)件之間的直管段總長也不得小于30D(15D)。徐州水處理流量計(jì)報(bào)價(jià)質(zhì)量流量計(jì)應(yīng)用拓展大的障礙就是價(jià)格問題。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京液體流量計(jì)廠家電話,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142465523533/8497638.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：為保證紙張的白度均勻細(xì)致，要添加不同的添加劑、分散劑和漂白劑。與食品工業(yè)中添加劑的使用情況一樣，這些添加液的流量小，腐蝕性強(qiáng)，所以大多數(shù)都選用PTEE襯里和PFA襯里。因?yàn)镠2O2的強(qiáng)氧化性，所以經(jīng)常被造紙廠選作漂白劑，但H2O2對(duì)金屬材料的腐蝕性特別強(qiáng)。出于防腐的考慮，工程師們很喜歡選用Pt作為電極材料。但實(shí)際使用的情況證明，當(dāng)過程壓力小于0.3MPa時(shí)，Pt電極會(huì)同H2O2發(fā)生反應(yīng)，會(huì)在電極表面形成一層氣霧，我們稱其為觸媒反應(yīng)。這時(shí)輸出信號(hào)會(huì)有很較**動(dòng)。但選用鉭（Ta）電極就沒有上述問題了。如果我們?cè)趽Q用NaOH溶液時(shí)選用了鉭電極，那么情況就不那么樂觀了，因?yàn)閴A液會(huì)使鉭電極產(chǎn)生表面效應(yīng)。SGAIC校準(zhǔn)實(shí)驗(yàn)室的數(shù)據(jù)表明，鉭電極在測量一般的水時(shí)其特點(diǎn)的變動(dòng)也要超過其他電極數(shù)十倍。小口徑智能電磁流量計(jì)安裝時(shí)要特別注意同心度。</p><p style="text-indent:25px">差壓式流量計(jì)由節(jié)流裝置（或動(dòng)壓測定裝置）、差壓訊號(hào)管路和差壓計(jì)3部分組成?；驹硎浅錆M管道的流體流經(jīng)管道內(nèi)的節(jié)流裝置，流束將在節(jié)流件處形成局部收縮，從而使流速增加，靜壓力降低，于是在節(jié)流件前后產(chǎn)生靜壓力差。流體的流速愈大，在節(jié)流件前后產(chǎn)生的差壓愈大，所以可通過測量差壓衡量流體流過節(jié)流裝置時(shí)的流量大小，這種測量方法以能量守恒定律和流動(dòng)連續(xù)性方程為基礎(chǔ)。差壓式流量計(jì)歷史悠久，經(jīng)長期實(shí)踐積累了可靠的試驗(yàn)數(shù)據(jù)和運(yùn)行經(jīng)驗(yàn)，技術(shù)資料豐富，成為工業(yè)上使用蕞為普遍的管流流量計(jì)。節(jié)流裝置按其標(biāo)準(zhǔn)化程度分為標(biāo)準(zhǔn)型和非標(biāo)準(zhǔn)型兩大類。標(biāo)準(zhǔn)差壓裝置是指按照標(biāo)準(zhǔn)設(shè)計(jì)、制造、安裝和使用，無需經(jīng)實(shí)流校準(zhǔn)即可確定其流量值并計(jì)算其測量不確定度的差壓流量計(jì)。非標(biāo)準(zhǔn)節(jié)流裝置由于成熟程度較差，尚未列入標(biāo)準(zhǔn)文件的各類差壓流量計(jì)。渦輪流量計(jì)變磁阻式。葉輪葉片或輪轂由導(dǎo)磁材料制成，傳感器殼體外檢測線圈中裝有水磁性材料。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京液體流量計(jì)廠家電話,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711069791454/9673165.png"></div><p style="text-indent:25px">電磁流量計(jì)噪音分析：流動(dòng)體摩擦襯里和電極，流動(dòng)體中發(fā)生的正離子和負(fù)離子從電解液中分離出來。內(nèi)襯和電極表面越粗糙，游離離子濃度越高。一部分離子在電極信號(hào)電場的作用較向電極移動(dòng)，從而形成噪聲電壓，這就是流動(dòng)動(dòng)噪聲。在低電導(dǎo)率測試中，流動(dòng)動(dòng)噪聲的影響是很明顯的。流動(dòng)場噪聲與外電場強(qiáng)度有關(guān)，當(dāng)流動(dòng)速較較大時(shí)，感應(yīng)信號(hào)越較大，噪聲越較大，輸出的穩(wěn)定性越差。流動(dòng)體的電導(dǎo)率和pH值的急劇變化也會(huì)形成流動(dòng)動(dòng)噪聲，上游流量計(jì)加藥性能的測量不穩(wěn)定性就是一例。其原因是不同介質(zhì)在不均勻混合時(shí)，流動(dòng)體中很容易分離出正負(fù)離子，部分離子會(huì)受到電極信號(hào)電場的影響向電極移動(dòng)，產(chǎn)生流動(dòng)動(dòng)噪聲電壓，導(dǎo)致輸出不穩(wěn)定。由于在襯里和電極附近的高流動(dòng)速流動(dòng)流動(dòng)體的層流動(dòng)邊界層厚度變得非常薄，因此襯里和電極的粗糙度值都超過了流動(dòng)速層邊界層的厚度，流動(dòng)體沖擊這部分的粗糙度值，就會(huì)發(fā)生流動(dòng)速擴(kuò)散和突變。部分流動(dòng)速分量與測量管中心軸向相同(或相反)，受信號(hào)權(quán)函數(shù)的影響，對(duì)電極信號(hào)產(chǎn)生較較大的正向影響，這就是較高流動(dòng)速噪聲。因?yàn)楣I(yè)現(xiàn)場的介質(zhì)不同，溫度壓力不同，所以對(duì)流量計(jì)襯里也會(huì)有不同的要求。南京液體流量計(jì)廠家電話</p><p style="text-indent:25px">傳統(tǒng)電磁流量計(jì)電纜易受電磁干擾，造成傳輸信號(hào)不穩(wěn)定。南京液體流量計(jì)廠家電話</p><p style="text-indent:25px">渦輪流量計(jì)按信號(hào)檢測方式分類：1.感應(yīng)式。傳感器葉輪中嵌有永磁性材料。當(dāng)葉輪和永磁材料旋轉(zhuǎn)時(shí)，磁場交替接近與遠(yuǎn)離傳感器殼體外的檢測線圈，線圈的感應(yīng)電動(dòng)勢(shì)隨著變化，此周期變化的頻率信號(hào)經(jīng)放較大后輸出。2.渦輪流量計(jì)變磁阻式。葉輪葉片或輪轂由導(dǎo)磁材料制成，傳感器殼體外檢測線圈中裝有水磁性材料。當(dāng)葉輪旋轉(zhuǎn)時(shí)，經(jīng)圈內(nèi)永磁材料形成的磁路，因?qū)Т判匀~片交替接近或遠(yuǎn)離，磁通產(chǎn)生周期性變化，線圈的等效阻抗亦隨著變化，在放較大線路中產(chǎn)生連續(xù)的脈沖波。3.渦輪流量計(jì)笛簧管(干簧管)式。嵌在葉輪(或與其同步的其他旋轉(zhuǎn)元件)里的永磁性材料周期地打開和閉合傳感器殼體外笛管的簧片觸電，這種開關(guān)作用使恒流動(dòng)(或恒壓)源產(chǎn)生電脈沖信號(hào)。4.光電式。葉輪葉片或葉輪驅(qū)動(dòng)的元件隨著葉輪旋轉(zhuǎn)，周期性地遮斷光束，所產(chǎn)生的光脈沖信號(hào)轉(zhuǎn)換成電脈沖信號(hào)，近年出現(xiàn)光纖傳輸方式，有效地提高抗干擾性能。南京液體流量計(jì)廠家電話</p><p style="text-indent:25px">南儀測控技術(shù)(上海)有限公司致力于五金、工具，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。南儀測控技術(shù)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)著為客戶提供壓力變送器，溫度傳感器，液位計(jì)，流量計(jì)。南儀測控技術(shù)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)。南儀測控技術(shù)創(chuàng)始人謝成艷，始終關(guān)注客戶，創(chuàng)新科技，竭誠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/2832087.html</p></div></div></div></div></div><div id="hfrdzqc" class="page-right twoColRt"><div id="utaxeaw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kyfmyub" 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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