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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>杭州投入式流量計(jì)廠家服務(wù)熱線,流量計(jì)</p><p><span>***更新：</span>2021-01-08 02:10:35</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="7vg3www" 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="g7h3lgw" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="wgb2ar2" class="box"><p><p style="text-indent:25px">電磁流量計(jì)在造紙企業(yè)中的應(yīng)用：隨著流量?jī)x表測(cè)量技術(shù)的飛速發(fā)展，杭州投入式流量計(jì)廠家服務(wù)熱線，各類智能型的流量計(jì)在許多工業(yè)生產(chǎn)領(lǐng)域發(fā)揮了重要的作用。近年來(lái)，國(guó)內(nèi)的電磁流量計(jì)的制造技術(shù)也在不斷進(jìn)步，電磁流量計(jì)產(chǎn)品在較大中型投產(chǎn)項(xiàng)目中的比例也有所增加。造紙行業(yè)對(duì)于流量計(jì)的需求量是特別巨較大的，國(guó)內(nèi)的較大中型造紙企業(yè)也已逐步地開始完成了電磁流量計(jì)替代傳統(tǒng)的差壓流量?jī)x表的過(guò)程，目前國(guó)家35萬(wàn)噸規(guī)模的造紙廠，電磁流量計(jì)使用已達(dá)到400臺(tái)左右，杭州投入式流量計(jì)廠家服務(wù)熱線，杭州投入式流量計(jì)廠家服務(wù)熱線。造紙行業(yè)是產(chǎn)生廢水污染的主要行業(yè)之一，在造紙整修工藝流動(dòng)程中，除主流動(dòng)程外，隨著環(huán)保要求愈加嚴(yán)格，多數(shù)造紙企業(yè)都同時(shí)建設(shè)了廢液處理工藝。調(diào)查發(fā)現(xiàn)電磁流量計(jì)在造紙廠中幾乎所有的工段都有使用。腐蝕性流體――電磁流量計(jì)、金屬管轉(zhuǎn)子流量計(jì)、科氏力流量計(jì)。杭州投入式流量計(jì)廠家服務(wù)熱線</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州投入式流量計(jì)廠家服務(wù)熱線,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711026734705/3791399.png"></div><p style="text-indent:25px">如何避免電磁流量計(jì)中氣泡噪聲：1、應(yīng)從安裝上滿足電磁流量計(jì)上游直管段長(zhǎng)度要求,規(guī)范儀表的安裝,選擇遠(yuǎn)離熱源的安裝場(chǎng)所,合理使用管道流動(dòng)速,選用光潔度高的PFA氟塑料襯里和高純氧化鋁工業(yè)陶瓷導(dǎo)管。這些措施將有助于防止或減小旋渦和氣體分離的發(fā)生。也就是說(shuō),改進(jìn)傳感器制造工藝、改善使用儀表環(huán)境條件和安裝條件、采用儀表上游加裝排氣閥等措施,有可能避免問題的發(fā)生。2、合理地設(shè)置流量計(jì)阻尼時(shí)間和功能,也可以解決出現(xiàn)氣泡噪聲測(cè)量的誤報(bào)警。阻尼時(shí)間的選擇是根據(jù)流量信號(hào)中發(fā)生氣泡噪聲的脈沖寬度來(lái)選取。一般應(yīng)取阻尼時(shí)間為氣泡噪聲脈沖寬度的3~5倍。如氣泡噪聲脈沖寬度是10s,阻尼時(shí)間應(yīng)取30~50s。具體選擇應(yīng)根據(jù)要求的控制精度,3倍脈沖寬度控制誤差在5%,5倍脈沖寬度控制精度高于1%。杭州投入式流量計(jì)廠家服務(wù)熱線流量?jī)x表是過(guò)程自動(dòng)化儀表與裝置中的大類儀表之一。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州投入式流量計(jì)廠家服務(wù)熱線,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142236116619/4092847.png"></div><p style="text-indent:25px">電磁流量計(jì)和超聲波流量計(jì)的主要區(qū)別，安裝、維護(hù)、檢定成本不同：超聲波流量計(jì)適用于較大型圓形管道和矩形管道，且原理上不受管徑限制，其造價(jià)基本上與管徑無(wú)關(guān)。對(duì)于較大型管道不僅帶來(lái)方便，可認(rèn)為在無(wú)法實(shí)現(xiàn)實(shí)流動(dòng)校驗(yàn)的情況較是優(yōu)先考慮的選擇方案。超聲流量計(jì)可作非接觸測(cè)量。夾裝式換能器超聲流量計(jì)可無(wú)需停流動(dòng)截管安裝，只要在既設(shè)管道外部安裝換能器即可。這是超聲流量計(jì)在工業(yè)用流量?jī)x表中具有的獨(dú)特優(yōu)點(diǎn)，因此可作移動(dòng)性(即非定點(diǎn)固定安裝)測(cè)量，適用于管網(wǎng)流動(dòng)動(dòng)狀況評(píng)估測(cè)定超聲流量計(jì)為無(wú)流動(dòng)動(dòng)阻撓測(cè)量，無(wú)額外壓力損失。</p><p style="text-indent:25px">塔型電磁流量計(jì)：1，塔型電磁流量計(jì)是把測(cè)量管和連接法蘭整體焊接在一起的一個(gè)產(chǎn)品，雖然D值的要求也很嚴(yán)格，但是這個(gè)工作是由儀表制造廠家來(lái)做的。測(cè)量管是在制造廠進(jìn)行準(zhǔn)確測(cè)量或者進(jìn)行機(jī)械加工來(lái)達(dá)到所要求數(shù)值，根本不需要用戶再為管道的D值是否精確而為難，用戶只要把管道的壁厚系列提供給儀表廠以便選配同系列的測(cè)量管就可以。由于塔形電磁流量計(jì)可以把D值控制的非常精確，從而避免了孔板等差壓式儀表因D值不準(zhǔn)確而帶來(lái)的計(jì)算上的誤差。2，塔型電磁流量計(jì)性能：具有良好的準(zhǔn)確度（≤0.5%）和重復(fù)性（≤0.1%）。具有較寬的量程比（10：1～15：1）。對(duì)流動(dòng)體有整流動(dòng)功能，因此只需要極短的直管段（前1～3D后0～1D）。具有自清潔功能，可測(cè)臟污和易結(jié)垢流動(dòng)體。節(jié)流動(dòng)件關(guān)鍵（不含任何電子部件），因此耐高溫、高壓、耐腐蝕、不怕震動(dòng)等?？蓽y(cè)流動(dòng)體的種類非常普遍（液、氣、蒸汽），流量范圍寬（從微小流量～到較大流量），適應(yīng)的管道（DN15～DN3000）。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="杭州投入式流量計(jì)廠家服務(wù)熱線,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142412661529/1294224.png"></div><p style="text-indent:25px">通常是電磁流量傳感器安裝位置不正確引起的故障，常見的如將傳感器安裝在易積聚氣體的管系高點(diǎn)；或安裝在自上而較的垂直管上，可能出現(xiàn)排空；或傳感器后無(wú)背壓，流動(dòng)體直接排入較大氣而形成測(cè)量管內(nèi)非滿管。通常主要是管道雜散電流動(dòng)干擾，空間強(qiáng)電磁波干擾，較大型電機(jī)磁場(chǎng)干擾等。管道雜散電流動(dòng)干擾通常采取良好的單獨(dú)接地保護(hù)就可獲得滿意結(jié)果，但如遇到強(qiáng)較大的雜散電流動(dòng)（如電解車間管道，有時(shí)在兩電極上感應(yīng)的交流動(dòng)電勢(shì)峰值Vpp可高達(dá)1V），尚需采取另外措施和流量傳感器與管道絕緣等?？臻g電磁波干擾一般經(jīng)信號(hào)電纜引入，通常采用單層或多層屏蔽予以保護(hù)。精確度等級(jí)：玻璃轉(zhuǎn)子流量計(jì)的一種分級(jí)。杭州投入式流量計(jì)廠家服務(wù)熱線</p><p style="text-indent:25px">只要液體是有一定的導(dǎo)電率，就可以選擇電磁流量計(jì)作為測(cè)量的工具。杭州投入式流量計(jì)廠家服務(wù)熱線</p><p style="text-indent:25px">渦輪流量計(jì)按信號(hào)檢測(cè)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(chǎng)交替接近與遠(yuǎn)離傳感器殼體外的檢測(cè)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(cè)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。杭州投入式流量計(jì)廠家服務(wù)熱線</p><p style="text-indent:25px">南儀測(cè)控技術(shù)(上海)有限公司位于滬閔路1871號(hào)9甲幢4樓407室。公司業(yè)務(wù)涵蓋壓力變送器，溫度傳感器，液位計(jì)，流量計(jì)等，價(jià)格合理，品質(zhì)有保證。公司從事五金、工具多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br 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