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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>徐州流量計(jì)銷售,流量計(jì)</p><p><span>***更新：</span>2021-01-16 05:12:56</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="x8qmy3p" 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="yrvza4o" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="mvr8myf" class="box"><p><p style="text-indent:25px">電磁流量計(jì)使用中的常見故障，有的是由于儀表本身元器件損壞引起的故障，有的是由于選用不當(dāng)、安裝不妥、環(huán)境條件、流動(dòng)體特性等因素造成的故障，如顯示波動(dòng)、精度較降甚至儀表損壞等。它一般可以分為兩種類型：安裝調(diào)試時(shí)出現(xiàn)的故障（調(diào)試期故障）和正常運(yùn)行時(shí)出現(xiàn)的故障（運(yùn)行期故障）。1、調(diào)試期故障：調(diào)試期待故障一般出現(xiàn)在儀表安裝調(diào)試階段，一經(jīng)排除，徐州流量計(jì)銷售，在以后相同條件較不會(huì)再出現(xiàn)。常見的調(diào)試期故障通常由安裝不妥、環(huán)境干擾以及流動(dòng)體特性影響等原因引起。2、運(yùn)行期故障：運(yùn)行期故障是電磁流量計(jì)經(jīng)調(diào)試并正常運(yùn)行一段時(shí)期后出現(xiàn)的故障，常見的運(yùn)行期故障一般由流量傳感器內(nèi)壁附著層，徐州流量計(jì)銷售，徐州流量計(jì)銷售、雷電打擊以及環(huán)境條件變化等因素引起。電磁流量計(jì)傳感頭具有獨(dú)特的抗振動(dòng)和抗干擾的封裝工藝，現(xiàn)場(chǎng)抗干擾性更強(qiáng)。徐州流量計(jì)銷售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州流量計(jì)銷售,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711037769862/4139399.png"></div><p style="text-indent:25px">電磁流量計(jì)電極四氟襯里加工工藝方法：電磁流量計(jì)測(cè)量中，電解質(zhì)流動(dòng)體對(duì)金屬電極的電化學(xué)反應(yīng)會(huì)產(chǎn)生直流動(dòng)極化電壓。這種與流動(dòng)速無關(guān)的電壓被稱為流動(dòng)體噪聲。流動(dòng)體噪聲一直是電磁流量計(jì)要解決的重要技術(shù)問題之一,從1832年法拉第*次應(yīng)用地磁場(chǎng)和電磁感應(yīng)方法測(cè)量泰晤士河流動(dòng)速，到現(xiàn)在人們普遍地應(yīng)用電磁流量計(jì)測(cè)量導(dǎo)電液體流量，電磁流量計(jì)的流動(dòng)體噪聲問題一直是一個(gè)困擾。尤其在進(jìn)入低頻矩形波勵(lì)磁時(shí)代以來，流動(dòng)體噪聲的影響表現(xiàn)得更為突出。往往有些新裝配的流量計(jì)受電極極化的影響，輸出擺動(dòng)需要經(jīng)過長時(shí)間在水中浸泡才能消除。流動(dòng)體噪聲的較大小直接影響到流量計(jì)測(cè)量的靈敏度、線性度和穩(wěn)定性，因此如何深入研究流動(dòng)體噪聲，探尋其產(chǎn)生的原因，找到降低流動(dòng)體噪聲的方法，提高傳感器信噪比，特別是對(duì)微弱勵(lì)磁電流動(dòng)（電磁水表、兩線制電磁流量計(jì)）的發(fā)展和低流動(dòng)速（0.1m/s以較）及高流動(dòng)速（15m/s以上）流量測(cè)量范圍的擴(kuò)展具有重較大意義。徐州流量計(jì)銷售電磁流量計(jì)的輸出只與被測(cè)介質(zhì)的平均流速成正比，而與對(duì)稱分布下的流動(dòng)狀態(tài)（層流或湍流）無關(guān)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州流量計(jì)銷售,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400217061148192/8862408.png"></div><p style="text-indent:25px">流量計(jì)又分為有差壓式流量計(jì)、轉(zhuǎn)子流量計(jì)、節(jié)流動(dòng)式流量計(jì)、細(xì)縫流量計(jì)、容積流量計(jì)、電磁流量計(jì)、超聲波流量計(jì)等。按介質(zhì)分類：液體流量計(jì)和氣體流量計(jì)。流量計(jì)外表選型的過程是怎樣的？1、依據(jù)流動(dòng)體種類及五個(gè)方面考慮要素初選可用外表類型(要有幾種類型以便進(jìn)行選擇)；2、對(duì)初選類型進(jìn)行資料及價(jià)格信息的收集，為深化的分析比較準(zhǔn)備條件；3、采用淘汰法逐漸集中到1～2種類型，對(duì)五個(gè)方面要素要重復(fù)比較分析*終確認(rèn)預(yù)選方針。阿牛巴流量計(jì)首要用于工業(yè)過程中各種動(dòng)力如液體、燃料氣、蒸氣和氣體的丈量，具有較高的穩(wěn)定性和重復(fù)性。阿牛巴流量計(jì)設(shè)計(jì)理論契合伯努利方程原理，經(jīng)過歐盟CE質(zhì)量認(rèn)證，經(jīng)過自動(dòng)化設(shè)計(jì)技術(shù)專利注冊(cè)。阿牛巴流量計(jì)的調(diào)試闡明。1、接上信號(hào)線、電源線。2、敞開進(jìn)口、出口閥門，進(jìn)出口閥門開度要共同。3、打開不銹鋼三閥組平衡閥，緩慢敞開孔板高低壓端的閥門，待流動(dòng)體經(jīng)過流量計(jì)后關(guān)閉不銹鋼三閥組平衡閥即可。</p><p style="text-indent:25px">電磁流量計(jì)常見的錯(cuò)誤安裝方式有哪些？關(guān)于安裝方位：電磁流量計(jì)的安裝方位通常分為垂直安裝和水平安裝，適宜的方位可幫助避免氣體的累積和測(cè)量管內(nèi)的殘?jiān)娣e。1、垂直安裝：這種方位對(duì)易自排空管道系統(tǒng)很理想，并可不加空管檢測(cè)電極。2、水平安裝：測(cè)量電極平面必須水平，這樣可以防止由于夾帶的氣泡而產(chǎn)生的電極短時(shí)間絕緣。注意：空管檢測(cè)功能*當(dāng)測(cè)量裝置為水平安裝及變送器外殼向上時(shí)能正確工作。如果振動(dòng)非常劇烈，應(yīng)將傳感器和變送器分開安裝。3、基座，支撐：如果公稱直徑為DN≥350，在能忍受足夠負(fù)載的基座上安裝變送器。注意不允許利用外框承住傳感器的重量。這會(huì)使外框變形并破壞內(nèi)部勵(lì)磁線圈。如果可能，安裝傳感器好避免例如閥門，三通，彎頭等組件。流量計(jì)聚四氟乙烯PTFE襯里耐溫范圍-30~+180。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州流量計(jì)銷售,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,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%。電池供電型電磁流量計(jì)目前所使用的不是很多，主要是用在現(xiàn)場(chǎng)沒有任何電源的情況下來使用。徐州流量計(jì)銷售</p><p style="text-indent:25px">流量計(jì)又分為有差壓式流量計(jì)、轉(zhuǎn)子流量計(jì)、節(jié)流式流量計(jì)、細(xì)縫流量計(jì)、容積流量計(jì)、電磁流量計(jì)等。徐州流量計(jì)銷售</p><p style="text-indent:25px">在過程自動(dòng)化儀表與裝置中，流量?jī)x表有兩大功用：作為過程自動(dòng)化控制系統(tǒng)的檢測(cè)儀表和測(cè)量物料數(shù)量的總量表。技術(shù)指標(biāo)：流量上限值：流量計(jì)能按規(guī)定精確度測(cè)量的大流量。流量下限值：流量計(jì)能按規(guī)定精確度測(cè)t的小流量。誤差限：流量計(jì)誤差的大允許值。量程比：流量計(jì)的流量上限值與下限值之比值。標(biāo)定：在標(biāo)定狀態(tài)下，通過一系列已知值來確定流量計(jì)標(biāo)度的過程。流通面積：流盤計(jì)錐管內(nèi)徑與浮子工作直徑之間的有效環(huán)隙橫截面積。標(biāo)定狀態(tài)：標(biāo)定時(shí)流量計(jì)上游所處的較全溫度和較全壓力狀態(tài)。精確度等級(jí)：玻璃轉(zhuǎn)子流量計(jì)的一種分級(jí)，凡屬同一精確度等級(jí)的流量計(jì)應(yīng)滿足該類流量計(jì)規(guī)定的全部共同精確度要求。示值：流量計(jì)指示的容積流量值。徐州流量計(jì)銷售</p><p style="text-indent:25px">南儀測(cè)控技術(shù)(上海)有限公司致力于五金、工具，是一家生產(chǎn)型公司。南儀測(cè)控技術(shù)致力于為客戶提供良好的壓力變送器，溫度傳感器，液位計(jì)，流量計(jì)，一切以用戶需求為中心，深受廣大客戶的歡迎。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造五金、工具良好品牌。南儀測(cè)控技術(shù)憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2868374.html</p></div></div></div></div></div><div id="jnkokd8" class="page-right twoColRt"><div id="wf8e7of" class="box01 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