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class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289134746609/1367639.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="pj22mel" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>南通液體渦輪流量計銷售廠家,流量計</p><p><span>***更新：</span>2021-01-29 04:08:04</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="zobdcqx" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測控儀表有限公司</a></p><p><span>聯(lián)系人：</span>姜經(jīng)理</p><p><span>郵箱: </span>jszhck@163.com</p><p><span>電話: </span>13770424300</p><p><span>傳真: </span>0517_86903470</p><p><span>網(wǎng)址: </span>http://www.jszhckyb.com</p><p><span>手機: </span>0517-86900078</p><p><span>地址: </span>江蘇省淮安市金湖縣工業(yè)集中區(qū)A區(qū)3號</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="qfhz8vn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3mtvudu" class="box"><p><p style="text-indent:25px">渦街流量計的局限性：（1）口徑越大，分辨率越低，通常滿管時流量計用于DN400以下。（2）對管道機械振蕩較活絡(luò)，不宜用于強振蕩場所。（3）當(dāng)流體有壓力脈動或流量脈動時，南通液體渦輪流量計銷售廠家，示值大幅度偏高，影響較大，因而不適用于脈動流。（4）流體溫度太高時，傳感器還有艱難，南通液體渦輪流量計銷售廠家，通常流體溫度≤420℃。孔板流量計的局限性：（1）規(guī)模度窄，因為外表信號（差壓）與流量為平方關(guān)系，通常規(guī)模度*3:1～4:1。（2）丈量度在流量計中屬中等水平。因為很多因素的影響撲朔迷離，度難以進步。（3）節(jié)流裝置與差壓顯現(xiàn)外表之間引壓管線為薄弱環(huán)節(jié)，易發(fā)生走漏、阻塞及凍住、信號失真等毛病。（4）壓損大（指孔板，南通液體渦輪流量計銷售廠家、噴嘴）。（5）現(xiàn)場裝置條件要求較高，如需較長的直管段（指孔板、噴嘴），通常難以滿意智能電磁流量計是一種流量儀表，因為它是根據(jù)傳統(tǒng)的物理電磁感應(yīng)原理制成的，擁有著非常獨特的特點；南通液體渦輪流量計銷售廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通液體渦輪流量計銷售廠家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289134746609/1367639.png"></div><p> 智能型電磁流量計如果在日常使用過程中出現(xiàn)了一些問題，我們就要去認(rèn)真的去找原因。原因很多，主要有下面幾個方面： </p> <p> 一、使用場所的原因 </p> <p> 使用場所如果不太好，比如現(xiàn)場有一些干擾，我們就要想辦法來解決這些問題。比如在接地上用單一地接地，或用傳感器和管道進行不導(dǎo)電的辦法；還有就是用屏蔽線給予保護。 </p> <p> 二、裝配程序的原因 </p> <p> 比如有的用戶把智能電磁流量計在容易有空氣的高處，或者安裝在不經(jīng)常是滿管的地方，或者安裝在流體從上到下的堅著的管子上，這些都會使智能電磁流量計使用出現(xiàn)問題。 </p> <p> 三、測量介質(zhì)的原因 </p> <p> 如果所測量的介質(zhì)不是單單地導(dǎo)電液體，而是液氣混合，也就是說測量介質(zhì)里面有許多氣泡，它就會地影響測量信號輸出地穩(wěn)定性。 </p> <p> <br /> </p> <p> 四、長期使用了的智能電磁流量計的內(nèi)管里會積污垢，這樣也會影響電磁流量計的測量效果。 </p> <p> 五、電磁流量計的電源線，要做好防雷電的工作。特別是夏天，一定做注意這一點。南通液體渦輪流量計銷售廠家電磁流量計內(nèi)的測量電極處于一個直流或交流電場內(nèi)；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通液體渦輪流量計銷售廠家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289060000603/4529138.png"></div><p> 流體流經(jīng)管道內(nèi)的節(jié)流裝置，在節(jié)流件附近造成局部收縮，流速增加，在其上、下游兩側(cè)產(chǎn)生靜壓力差。在已知有關(guān)參數(shù)的條件下，根據(jù)流動連續(xù)性原理和伯努利方程可以推導(dǎo)出差壓與流量之間的關(guān)系而求得流量?？装辶髁坑嫷墓?jié)流裝置結(jié)構(gòu)簡單，且牢固、性能穩(wěn)定可靠，使用期限長，價格較低，是工業(yè)中常用到的流量測量儀表，整個加工過程采用國際標(biāo)準(zhǔn)，并經(jīng)過嚴(yán)格的校驗檢測，用戶在購買后可放心使用。該流量計應(yīng)用領(lǐng)域比較，所有的單相流速都可以測量，一部分混相流也可以使用該產(chǎn)品孔板流量計可測量管道中各種流體的流量，可測量的介質(zhì)有液體、氣體、蒸汽，被應(yīng)用于石油、化工、冶金、輕工、煤礦等工業(yè)部門。測量原理：充滿管道的流體，當(dāng)它們流經(jīng)管道內(nèi)的節(jié)流裝置時，流束將在節(jié)流裝置的節(jié)流件處形成局部收縮孔板流量計前后產(chǎn)生一個靜壓力差,該壓力差與流量存在著一定的函數(shù)關(guān)系,流量越大,壓力差就越大.差壓信號傳送給差壓變送器。 </p><p style="text-indent:25px">渦街流量計的優(yōu)點：（1）構(gòu)造簡略、結(jié)實、裝置保護便利。無需導(dǎo)壓管和三閥組等，削減走漏、阻塞和凍住等。（2）測量規(guī)模寬，合理斷定口徑，規(guī)模度可達20:1。（3）精度較高，通常為±（1～1.5）％R。（4）輸出與流量成正比的脈沖信號，無零點漂移。（5）壓損小，約為節(jié)流式差壓流量計的1/4～1/2。（6）在必定雷諾數(shù)規(guī)模內(nèi)，輸出頻率不受流體物性（密度、粘度）和組成的影響，即外表系數(shù)*與旋渦發(fā)作體及管道的形狀、尺度有關(guān)?？装辶髁坑嫷膬?yōu)點：（1）適用規(guī)模。既適用于全部單相流體，也可測量有些混相流，如氣固、汽液、固液等。（2）節(jié)流式差壓流量計中的標(biāo)準(zhǔn)孔板構(gòu)造易于復(fù)制，簡略結(jié)實，性能安穩(wěn)可靠，價格低廉。無需實流校準(zhǔn)就可使用，這在流量計中是罕見的。（3）對振蕩不活絡(luò)，抗干擾才能格外優(yōu)勝。（4）高溫高壓大口徑和小流量均適用。定式超聲波流量計，通常都有4-20mA信號輸出等功用，供遠(yuǎn)傳顯現(xiàn)運用，但其內(nèi)部只能存貯一條管道的參數(shù)；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通液體渦輪流量計銷售廠家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289114609938/9762879.png"></div><p> 渦街流量計 </p> <p> 工作原理：根據(jù)流體振蕩原理來測量流量的，流體在管道中經(jīng)過渦街流量變送器時，在三角柱的旋渦發(fā)生體后上下交替產(chǎn)生正比于流速的兩列旋渦，旋渦的釋放頻率與流過旋渦發(fā)生體的流體平均速度及旋渦發(fā)生體特征寬度有關(guān)，根據(jù)這種關(guān)系，旋渦頻率就可以計算出流過旋渦發(fā)生體的流體平均速度，再乘以橫截面積得到流量。 </p> <p> 工作特點：①結(jié)構(gòu)簡單而牢固，無可動部件，可靠性高，長期運行十分可靠;②安裝簡單，維護十分方便;③檢測傳感器不直接接觸被測介質(zhì)，性能穩(wěn)定，壽命長;④輸出是與流量成正比的脈沖信號，無零點漂移，精度高;⑤測量范圍寬，量程比可達1：10;⑥壓力損失較小，運行費用低，更具節(jié)能意義。孔板流量計可測量管道中各種流體的流量，可測量的介質(zhì)有液體、氣體、蒸汽；南通液體渦輪流量計銷售廠家</p><p style="text-indent:25px">被測流體是液體時，引壓管路內(nèi)全部是液相，不能有氣泡。南通液體渦輪流量計銷售廠家</p><p> 測量流體流量的儀表統(tǒng)稱為流量計或流量表．流量計是工業(yè)測量中重要的儀表之一．隨著工業(yè)生產(chǎn)的發(fā)展，對流量測量的準(zhǔn)確度和范圍的要求越來越高，流量測量技術(shù)日新月異．為了適應(yīng)各種用途，各種類型的流量計相繼問世。目前已投入使用的流量計已超過100種。每種產(chǎn)品都有它特定的適用性,也都有它的局限性。按測量原理分有力學(xué)原理、熱學(xué)原理、聲學(xué)原理、電學(xué)原理、光學(xué)原理、原子物理學(xué)原理等。檢測件又可按其標(biāo)準(zhǔn)化程度分為二大類:標(biāo)準(zhǔn)的和非標(biāo)準(zhǔn)的。所謂標(biāo)準(zhǔn)檢測件是只要按照標(biāo)準(zhǔn)文件設(shè)計、制造、安裝和使用,無須經(jīng)實流標(biāo)定即可確定其流量值和估算測量誤差。非標(biāo)準(zhǔn)檢測件是成熟程度較差的,尚未列入國際標(biāo)準(zhǔn)中的檢測件。 </p> <p> <br /> </p> <p> <br /> 南通液體渦輪流量計銷售廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3058588.html</p></div></div></div></div></div><div id="hgya8bo" class="page-right twoColRt"><div id="yn78oqh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="u8egvh7" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="guwovxz" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個科目真誠推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" 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