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<script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu 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href="http://www.cdcfah.com/cp/third-llyb_liuliangji/">流量計</a>?無錫加油站流量計銷售誠信為本南儀測控技術供應</p><div id="dzp9gic" class="leftbox clearfix"><h1>無錫加油站流量計銷售誠信為本南儀測控技術供應</h1><div id="pfse9kt" class="proBig"><div id="szfmwdg" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142236116619/4092847.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="e6swi4l" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142236116619/4092847.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vfxs4ay" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>無錫加油站流量計銷售,流量計</p><p><span>***更新：</span>2020-12-28 00:23:31</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nsvwy45" 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(上海)有限公司</a></p><p><span>聯(lián)系人：</span>桂經理</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="jeepkn8" class="page-proshow02"><p class="title">詳細說明</p><div id="td0r1qo" class="box"><p><p style="text-indent:25px">電磁流量計磁場邊緣效應對測量有什么影響：若是沿流體流動方向上的磁場始終是均勻的，在實際時，這就意味著沿著管軸方向的磁場是無限長的，無錫加油站流量計銷售，而實際上電磁流量計磁場是有限長的，所以就要考慮到有限長磁場所產生的邊緣效果對測量的影響。如果電磁流量計管壁是絕緣的，其電極附近磁場大多都是均勻的，兩端則是會逐漸的減弱，會形成不均勻的邊緣，無錫加油站流量計銷售，后就會下降至零。這樣使其液體內部電場也會不均勻，無錫加油站流量計銷售，將是會產生有渦電流，因為渦電路所產生的二次磁通反過來會改變磁場邊緣部分的工作磁通，會使磁場的均勻性遭受到破壞。誤差限：流量計誤差的大允許值。無錫加油站流量計銷售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫加油站流量計銷售,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142236116619/4092847.png"></div><p style="text-indent:25px">電磁流量計的技術發(fā)展逐步成熟：影響電磁流量計技術發(fā)展的問題，就是如何抵御在實際生產中應用中產生的噪聲和振動。目前電磁流量計尚處于發(fā)展中的階段，其理論基礎還未形成一個系統(tǒng)體系，實踐經驗相應的經過證實。在未來幾年間，隨著電磁流量計的技術不斷成熟，用戶的接受程度和技術水平逐步提高，電磁流量計將會逐步得到成熟應用。和電磁流量計不同，質量流量計技術門檻較高。質量流量計應用拓展較大的障礙就是價格問題。質量流量計發(fā)展的幾十年來，本土供應商一直也沒有掌握好的質量流量計生產技術。因此質量流量計價格高居不較，除了在石油石化行業(yè)應用比較普遍，在其他行業(yè)由于價格限制，應用較少。目前國外的主流動的質量流量計供應商也看到這樣的市場需求，在市場上開始推廣低端的質量流量計產品。從質量流量計技術來看，質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。寧波液體流量計廠家電話氯丁橡膠的耐磨性比較好，耐一般低濃度的酸堿。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫加油站流量計銷售,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142465523533/8497638.png"></div><p style="text-indent:25px">電磁流量計被擊穿的原因分析及應對方案：在電磁流量計的應用上，有些用戶會遇到電磁流量計轉換器電路板被燒壞的情況，尤其在夏季多雷雨的天氣，此種情況出現(xiàn)更為頻繁，結合大部分現(xiàn)場情況判斷，損壞部分為勵磁電路的電源部分，結合損壞情況判斷，是由于過壓造成勵磁電源保護穩(wěn)壓管擊穿，續(xù)電情況下進一步造成損壞器件過流產生高溫，促使PCB板極高溫碳化，加劇損壞情況.通?，F(xiàn)場產生過壓的原因有兩種情況：1、現(xiàn)場工況電源電壓不穩(wěn)，易產生浪涌電壓.若是建議安裝電源穩(wěn)壓器；2、雷雨季節(jié)的雷擊直接作用于電磁流量計，雷擊途徑多樣復雜，可通過一切與外部接觸的途徑，如輸入部分的電源；輸出部分的電流，頻率，通訊；流體管道傳感器的勵磁及電極.</p><p style="text-indent:25px">差壓式流量計由節(jié)流裝置（或動壓測定裝置）、差壓訊號管路和差壓計3部分組成?；驹硎浅錆M管道的流體流經管道內的節(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)流件前后產生靜壓力差。流體的流速愈大，在節(jié)流件前后產生的差壓愈大，所以可通過測量差壓衡量流體流過節(jié)流裝置時的流量大小，這種測量方法以能量守恒定律和流動連續(xù)性方程為基礎。差壓式流量計歷史悠久，經長期實踐積累了可靠的試驗數據和運行經驗，技術資料豐富，成為工業(yè)上使用蕞為普遍的管流流量計。節(jié)流裝置按其標準化程度分為標準型和非標準型兩大類。標準差壓裝置是指按照標準設計、制造、安裝和使用，無需經實流校準即可確定其流量值并計算其測量不確定度的差壓流量計。非標準節(jié)流裝置由于成熟程度較差，尚未列入標準文件的各類差壓流量計。流量計橡膠襯里適用的管徑范圍DN50~2200。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫加油站流量計銷售,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711037769862/4139399.png"></div><p style="text-indent:25px">電磁流量計在造紙企業(yè)中的應用：篩選漂白工段電磁流量計使用情況：為保證紙張的白度均勻細致，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，所以大多數都選用PTEE襯里和PFA襯里。因為H2O2的強氧化性，所以經常被造紙廠選作漂白劑，但H2O2對金屬材料的腐蝕性特別強。出于防腐的考慮，工程師們很喜歡選用Pt作為電極材料。但實際使用的情況證明，當過程壓力小于0.3MPa時，Pt電極會同H2O2發(fā)生反應，會在電極表面形成一層氣霧，我們稱其為觸媒反應。這時輸出信號會有很較**動。但選用鉭（Ta）電極就沒有上述問題了。如果我們在換用NaOH溶液時選用了鉭電極，那么情況就不那么樂觀了，因為堿液會使鉭電極產生表面效應。SGAIC校準實驗室的數據表明，鉭電極在測量一般的水時其特點的變動也要超過其他電極數十倍。小口徑智能電磁流量計安裝時要特別注意同心度。電磁流量計音速噴嘴標定，重復性高，測量精度高。寧波液體流量計廠家電話</p><p style="text-indent:25px">標定：在標定狀態(tài)下，通過一系列已知值來確定流量計標度的過程。無錫加油站流量計銷售</p><p style="text-indent:25px">電磁流量計的傳感器檢查方法與維護技巧：電磁流量計作為一種在流量測量范圍內使用為普遍的儀表，被許多的工業(yè)企業(yè)所喜愛。需要準備的測試設備：萬用表一只、500MΩ絕緣電阻測試儀一臺。測試檢查步驟：（1）在管道充滿介質的情況較，用萬用表測量接線端子A、B與C之間的電阻值，A-C、B-C之間的阻值應較大至相等。若差異在1倍以上，可能是電極出現(xiàn)滲漏、測量管外壁或接線盒內有冷凝水吸附。（2）在襯里干燥情況較，用MΩ表測A-C、B-C之間的絕緣電阻（應較大于200MΩ）。再用萬用表測量端子A、B與測量管內二只電極的電阻（應呈短路連通狀態(tài)）。若絕緣電阻很小，說明電極滲漏，應將整套流量計返廠維修。若絕緣有所較降但仍有50MΩ以上且步驟（1）的檢查結果正常，則可能是測量管外壁受潮，可用熱風機對外殼內部進行烘干。無錫加油站流量計銷售</p><p style="text-indent:25px">南儀測控技術(上海)有限公司致力于五金、工具，以科技創(chuàng)新實現(xiàn)***管理的追求。南儀測控技術擁有一支經驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，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，流量計。南儀測控技術致力于把技術上的創(chuàng)新展現(xiàn)成對用戶產品上的貼心，為用戶帶來良好體驗。南儀測控技術創(chuàng)始人謝成艷，始終關注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2588860.html</p></div></div></div></div></div><div id="fnu94hb" class="page-right twoColRt"><div id="eqhjnhg" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="je4wjaq" class="recomPic likePro"><a 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