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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zp2nxo3" 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>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>南京投入式流量計哪家口碑好,流量計</p><p><span>***更新：</span>2021-02-02 00:21:14</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ftvc3iu" 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: </span>021-61559357</p><p><span>地址: </span>滬閔路1871號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="qkr73xo" class="page-proshow02"><p class="title">詳細說明</p><div id="pyprdpb" class="box"><p><p style="text-indent:25px">電磁流量計想要計量準(zhǔn)必須避開幾個環(huán)境至關(guān)重要：電磁流量計計量不準(zhǔn)的因素是多種多樣的，其中主要的是與環(huán)境密切相關(guān)，如果環(huán)境不去改變計量永遠會不準(zhǔn)確的，1、強磁場：因安裝時一般都注意到要遠離強磁場，故強磁場影響的實踐經(jīng)驗不多。2、強電磁波：電磁流量計應(yīng)符合電磁兼容性要求，在規(guī)定輻射電磁場環(huán)境下正常工作，不會在該環(huán)境下造成儀表性能下降或工作不正常。當(dāng)分離型電磁流量計在現(xiàn)場有較大共模干擾時，作故障原因分析時就應(yīng)考慮強無線電波是否成為干擾源的可能性。本實例屬調(diào)試期罕見故障，南京投入式流量計哪家口碑好。3，南京投入式流量計哪家口碑好、管道雜散電流：電磁流量計妥善接地后，可以避免管道絕大部分雜散電流的影響。有時候按規(guī)定以粗電線跨接流量傳感器并完善接地，卻還會受雜散電流影響，尚需采取其他措施，南京投入式流量計哪家口碑好。腐蝕性流體――電磁流量計、金屬管轉(zhuǎn)子流量計、科氏力流量計。南京投入式流量計哪家口碑好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京投入式流量計哪家口碑好,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711026734705/3791399.png"></div><p style="text-indent:25px">造成電磁流量計誤差的主要影響因素，待測液體影響1、測量液體呈現(xiàn)不對稱狀態(tài)：測量中，待測液體存在非對稱情況，主要存在兩種流動組合：一種為單一的漩渦流；另一種是沿管線軸線的直線流，液體的體積流量為管道截面的積分。針對上游直管段不足的情況，可采用流量調(diào)節(jié)器進行調(diào)整；其次，保證上下游合理范圍內(nèi)管道內(nèi)徑與流量計內(nèi)徑具有相同的數(shù)值；再次，為上游留夠充足的直管段。2、測量管內(nèi)存在著層：電磁流量計常用于測量非清潔流體。非清潔流體內(nèi)部含有一些沉淀物等物質(zhì)，使得電磁流量計電極表面或管道內(nèi)受到污染，造成測量結(jié)果誤差現(xiàn)象。針對這種情況，首先，定期清洗電磁流量計；其次，合理提升流速，將其控制在4m/s狀態(tài)；再次，應(yīng)用聚四氯乙烯等材料的襯里。南京投入式流量計哪家口碑好流量儀表是過程自動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="南京投入式流量計哪家口碑好,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142302835889/3702973.png"></div><p style="text-indent:25px">智能電磁流量計是工業(yè)生產(chǎn)中一種普通使用的流量儀表，我們要獲得穩(wěn)定可靠的流量數(shù)據(jù)離不開智能電磁流量計的穩(wěn)定工作，對于智能電磁流量計的日常維護，主要掌握較面這些方面：智能電磁流量計維護之零點檢查和調(diào)整：智能電磁流量計投入運行前，通電后必須在電磁流量傳感器充滿液體靜止?fàn)顟B(tài)較調(diào)整零點。投入運行后亦要針對使用條件定期停流動作零點檢查；尤其對沉淀、易污染電極，含有固相的非清潔液，在運行初期應(yīng)多作檢查，以獲得經(jīng)驗確定正常檢查周期。交流動激磁方式的智能電磁流量計與矩形波激比，更易產(chǎn)生零點漂移，因此更要注意檢查和調(diào)整。</p><p style="text-indent:25px">在工業(yè)生產(chǎn)中時常會遇到電磁流量計歸零不穩(wěn)定的狀況，分析產(chǎn)生這個問題的原因有多種，主要有以下幾種因素：1、管道未充液體或液體中含有氣泡客觀上以為流量傳感器內(nèi)無活動而實踐上存在著微量活動。2、閥門運用日久或液體污臟使閥門密閉不全也會導(dǎo)致零點不穩(wěn)定現(xiàn)象的出現(xiàn)。3、液體電導(dǎo)率變化或不平均，在靜止時會使零點變動，活動時使輸出晃動。4、由于內(nèi)壁外表結(jié)垢和電極污穢水平不可能完整一樣和對稱，毀壞了初始調(diào)零設(shè)定的均衡情況。5、流量傳感器左近的電力設(shè)備狀態(tài)的變化(如漏電流增加)構(gòu)成接地電位變化，也會惹起智能電磁流量計零點變動。流量計橡膠襯里具有較好的彈性和耐磨性，耐沖擊。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京投入式流量計哪家口碑好,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711069791454/9673165.png"></div><p style="text-indent:25px">電磁流量計的技術(shù)發(fā)展逐步成熟：影響電磁流量計技術(shù)發(fā)展的問題，就是如何抵御在實際生產(chǎn)中應(yīng)用中產(chǎn)生的噪聲和振動。目前電磁流量計尚處于發(fā)展中的階段，其理論基礎(chǔ)還未形成一個系統(tǒng)體系，實踐經(jīng)驗相應(yīng)的經(jīng)過證實。在未來幾年間，隨著電磁流量計的技術(shù)不斷成熟，用戶的接受程度和技術(shù)水平逐步提高，電磁流量計將會逐步得到成熟應(yīng)用。和電磁流量計不同，質(zhì)量流量計技術(shù)門檻較高。質(zhì)量流量計應(yīng)用拓展較大的障礙就是價格問題。質(zhì)量流量計發(fā)展的幾十年來，本土供應(yīng)商一直也沒有掌握好的質(zhì)量流量計生產(chǎn)技術(shù)。因此質(zhì)量流量計價格高居不較，除了在石油石化行業(yè)應(yīng)用比較普遍，在其他行業(yè)由于價格限制，應(yīng)用較少。目前國外的主流動的質(zhì)量流量計供應(yīng)商也看到這樣的市場需求，在市場上開始推廣低端的質(zhì)量流量計產(chǎn)品。從質(zhì)量流量計技術(shù)來看，質(zhì)量流量計的口徑也越來越較大，能在各種較大口徑的管道上使用。大黏度流體――錐形入口孔板流量計、電磁流量計、橢圓齒輪流量計、科氏力流量計。南京投入式流量計哪家口碑好</p><p style="text-indent:25px">夾裝型渦輪流量計。傳感器本身無法蘭，靠管道上法蘭夾持住傳感器的兩密封端面，安裝方便。南京投入式流量計哪家口碑好</p><p style="text-indent:25px">電磁流量計測量氯堿的可行性分析報告：電磁流量計測量導(dǎo)電液體流量是非常有優(yōu)勢的，那么氯堿行業(yè)是否也可以使用電磁流量計來進行流量測量呢？氯堿行業(yè)主要計量鹽水和燒堿，兩者具有共同的特性：1、鹽水的成分較復(fù)雜，有時呈酸性，有時呈堿性，并可能由于離子膜脫氯不凈，而含有游離氯，兩者都具有較強的腐蝕性。2、兩者都是導(dǎo)電介質(zhì)。3、當(dāng)氣溫較低時，鹽水管道都會出現(xiàn)結(jié)鹽現(xiàn)象，隔閡燒堿也會在保送過程中隨著溫度降低而析出鹽；離子膜燒堿32％在3~C左右就會結(jié)晶；在管道長并間歇保送時，也會出現(xiàn)32％燒堿結(jié)晶而使管道梗塞，所以兩種被測介質(zhì)都會呈現(xiàn)含有固體顆?，F(xiàn)象。4、兩種介質(zhì)的溫度都在100oC以較。分析被測介質(zhì)的特性及電磁流量計的優(yōu)點，可以看出電磁流量計在氯堿計量方面十分適用。雖然電磁流量計的價錢較貴，但其精度高，維護量小，使用壽命長，有較高的性價比。差壓式流量計、渦輪流量計、橢圓齒輪流量計等都受流動體工作狀態(tài)以及流動體密度、粘度等參數(shù)的影響而使測量誤差增較大。由于測量元件受固體顆粒的磨損而使壽命降低，甚至堵塞無法使用，腐蝕性更無法解決。南京投入式流量計哪家口碑好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3113800.html</p></div></div></div></div></div><div id="feliu7k" class="page-right twoColRt"><div id="329y3q7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="txjq7bk" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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