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clearfix"><h1>速度式流量計(jì)價(jià)位和諧共贏上海翼爾電子科技供應(yīng)</h1><div id="3htq8je" class="proBig"><div id="vuwtizb" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039091991792/5193322.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8zby2cj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039091991792/5193322.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="bqnkug2" 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>速度式流量計(jì)價(jià)位,流量計(jì)</p><p><span>***更新：</span>2020-12-04 02:22:28</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="dw2bllw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海翼爾電子科技有限公司</a></p><p><span>聯(lián)系人：</span>趙“S</p><p><span>郵箱: </span>yeertec@163.com</p><p><span>電話: </span>13361991561</p><p><span>傳真: </span>021_57155131</p><p><span>網(wǎng)址: </span>http://www.yeer-tec.com</p><p><span>手機(jī): </span>021-57488360</p><p><span>地址: </span>海灣旅游區(qū)莘奉公路4960號(hào)110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="88ik2gy" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="xw2cewo" class="box"><p><p style="text-indent:25px">流量計(jì)規(guī)格選擇不當(dāng)，會(huì)使流量計(jì)在超下線或超上限的范圍下運(yùn)行，帶來(lái)很大的測(cè)量誤差，例如：如果上站來(lái)油量很小，一般在30方--40方每小時(shí)，如果選用較大的流量計(jì)必然造成在超下線情況運(yùn)行，速度式流量計(jì)價(jià)位，速度式流量計(jì)價(jià)位，造成測(cè)量不準(zhǔn)確，而外輸量又很大，一般在110方--160方每小時(shí)，速度式流量計(jì)價(jià)位，如果外輸所選流量計(jì)規(guī)格小，就必然造成在超上限的情況下運(yùn)行，造成測(cè)量不準(zhǔn)確。所以必須根據(jù)現(xiàn)場(chǎng)實(shí)際情況正確選用流量計(jì)，是保證流量計(jì)使用壽命和準(zhǔn)確性的重要環(huán)節(jié)。流量計(jì)規(guī)格應(yīng)為管道實(shí)際運(yùn)行中大的流量的1.2-1.3倍。差壓式流量計(jì)在封閉管道的流量測(cè)量中各種對(duì)象都有應(yīng)用。速度式流量計(jì)價(jià)位</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="速度式流量計(jì)價(jià)位,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039091991792/5193322.png"></div><p style="text-indent:25px">儀表投入運(yùn)行前，渦輪流量計(jì)傳感器必須充滿實(shí)際測(cè)量介質(zhì)，通電后在靜止?fàn)顟B(tài)下作零點(diǎn)調(diào)整。投入運(yùn)行后亦要根據(jù)介質(zhì)及使用條件定期停流檢查零點(diǎn)，尤其對(duì)易沉淀、易污染電極、含有固體的非清潔介質(zhì)，在運(yùn)行初期應(yīng)多檢查，以獲得經(jīng)驗(yàn)，確定正常檢查周期。對(duì)有條件的用戶(hù)，應(yīng)該在渦輪流量計(jì)儀表投入運(yùn)行前測(cè)量和記錄傳感器的幾個(gè)基本參數(shù)。這些數(shù)據(jù)對(duì)運(yùn)行一段時(shí)期后傳感器出現(xiàn)故障的原因分析是很有幫助的。兩電極的接觸電阻變化時(shí)，表明渦輪流量計(jì)電極很可能被沾污了；接觸電阻變大了，可能沾污物是絕緣性沉積物；接觸電阻變小了，可能沾污物是導(dǎo)電性的沉積物；兩電極接觸電阻不對(duì)稱(chēng)了，表明兩電極受污染的程度不一；電極和勵(lì)磁線圈的絕緣電阻下降表明渦輪流量計(jì)傳感器受潮的程度；當(dāng)絕緣電阻下降到一定程度，將會(huì)影響儀表的正常工作。速度式流量計(jì)價(jià)位超聲波流量計(jì)的安裝要避免安裝在管道系統(tǒng)的高點(diǎn)或帶有自由出口的豎直管道上。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="速度式流量計(jì)價(jià)位,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039044648371/6738453.png"></div><p style="text-indent:25px">轉(zhuǎn)子流量計(jì)工作原理：當(dāng)測(cè)量流體的流量時(shí)，被測(cè)流體從錐形管下端流入，流體的流動(dòng)沖擊著轉(zhuǎn)子，并對(duì)它產(chǎn)生一個(gè)作用力，當(dāng)流量足夠大時(shí)，產(chǎn)生的作用力將轉(zhuǎn)子托起。同時(shí)，被測(cè)流體流經(jīng)轉(zhuǎn)子與錐形管壁間的環(huán)形斷面，這時(shí)作用在轉(zhuǎn)子上的力有三個(gè):流體對(duì)轉(zhuǎn)子的動(dòng)壓力、轉(zhuǎn)子在流體中的浮力和轉(zhuǎn)子自身的重力。流量計(jì)垂直安裝時(shí)，轉(zhuǎn)子重心與錐管管軸會(huì)相重合，作用在轉(zhuǎn)子上的三個(gè)力都沿平行于管軸的方向。當(dāng)這三個(gè)力達(dá)到平衡時(shí)，轉(zhuǎn)子就平穩(wěn)地浮在錐管內(nèi)某一位置上。對(duì)于給定的轉(zhuǎn)子流量計(jì)，轉(zhuǎn)子大小和形狀己經(jīng)確定，因此它在流體中的浮力和自身重力都是已知是常量，唯有流體對(duì)浮子的動(dòng)壓力是隨來(lái)流流速的大小而變化的。因此當(dāng)來(lái)流流速變大或變小時(shí)，轉(zhuǎn)子將作向上或向下的移動(dòng)，相應(yīng)位置的流動(dòng)截面積也發(fā)生變化，直到流速變成平衡時(shí)對(duì)應(yīng)的速度，轉(zhuǎn)子就在新的位置上穩(wěn)定。對(duì)于一臺(tái)給定的轉(zhuǎn)子流量計(jì)，轉(zhuǎn)子在錐管中的位置與流體流經(jīng)錐管的流量的大小成一一對(duì)應(yīng)關(guān)系。</p><p style="text-indent:25px">流量計(jì)可以水平和垂直安裝，但是應(yīng)該確保避免沉積物和氣泡對(duì)測(cè)量電極的影響，電極軸向保持水平為好。垂直安裝時(shí)，流體應(yīng)自下而上流動(dòng)。電磁流量計(jì)內(nèi)的測(cè)量電極處于一個(gè)直流或交流電場(chǎng)內(nèi)，如果其環(huán)境不能有效地被屏蔽于一個(gè)無(wú)干擾的條件下，對(duì)測(cè)量有嚴(yán)重干擾。傳感器外殼接地與否，直接關(guān)系到測(cè)量的精度和穩(wěn)定性，接地導(dǎo)線必須不傳任何干擾電壓，因此電磁流量計(jì)要求有非常可靠的接地，要做好接地屏蔽，否則就會(huì)產(chǎn)生干擾電流。超聲波流量計(jì)也是比較常見(jiàn)的流量計(jì)，它的安裝在所有流量計(jì)的安裝中是簡(jiǎn)單便捷的，只要選擇一個(gè)合適的測(cè)量點(diǎn)，把測(cè)量點(diǎn)處的管道參數(shù)輸入到流量計(jì)中，然后把探頭固定在管道上即可。流量計(jì)每次使用完成之后，應(yīng)該要把流量計(jì)和電纜頭本來(lái)就有的一個(gè)保護(hù)的裝置蓋子蓋好做密封的包裝處理。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="速度式流量計(jì)價(jià)位,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039103241803/4471718.png"></div><p style="text-indent:25px">流量計(jì)提高計(jì)量準(zhǔn)確度途徑：（1）管道要求：國(guó)家標(biāo)準(zhǔn)對(duì)計(jì)量管長(zhǎng)度、直管、圓度和內(nèi)表面粗糙度等都有嚴(yán)格的技術(shù)要求。當(dāng)計(jì)量管較小長(zhǎng)度不能滿足標(biāo)準(zhǔn)要求時(shí)，會(huì)給流量測(cè)量結(jié)果帶來(lái)偏差，其大小與孔徑比β和雷諾數(shù)有關(guān)，所以必須在孔板前面的直管上安裝整流器，才能保證計(jì)量準(zhǔn)確度。（2）安裝要求：孔板入口端面必須與管道軸線垂直，其偏差不能超過(guò)1度。安裝孔板時(shí)要注意裝入管道的方向，嚴(yán)禁反裝，必須符合標(biāo)準(zhǔn)對(duì)不同軸度公差的要求。法蘭、孔板與取壓裝置之間的密封墊片厚度不得大于0.03D。墊片的安裝不得突入直管段內(nèi)或取壓裝置內(nèi)腔，不得擋住取壓口及引起取壓位置的改變。新建站場(chǎng)必須在管道吹掃并運(yùn)行幾天后，再將孔板安裝到節(jié)流裝置上，以免孔板被氣體中的液、固體雜質(zhì)損傷或污染。流量計(jì)在工程上常用單位m3/h。速度式流量計(jì)價(jià)位</p><p style="text-indent:25px">電磁流量計(jì)的測(cè)量原理不依賴(lài)流量的特性。速度式流量計(jì)價(jià)位</p><p style="text-indent:25px">流量計(jì)伴熱辦法：1、蒸汽伴熱辦法，即運(yùn)用管蒸汽暖氣保溫。冬天保溫送汽之前要查看一下蒸汽保溫管路是不是疏通或阻塞。較好的蒸汽是24小時(shí)通的，不要太熱，有時(shí)還要依據(jù)氣候溫度改動(dòng)來(lái)調(diào)整供保溫汽量，以避免溫度太高使變送器引壓管內(nèi)冷凝液汽化影響變送器作業(yè)或因溫度太低使變送器引壓管內(nèi)冷凝液冷凍影響變送器作業(yè)疏通。2、電加熱帶辦法，電伴熱保溫技能是一種新式的由電能直接轉(zhuǎn)化為熱能的供暖技能。加裝保溫電纜，將伴熱帶，纏繞在外表上，或粘在外表柜內(nèi)部（但要留意所用伴熱帶的長(zhǎng)度，要經(jīng)濟(jì)適度）。速度式流量計(jì)價(jià)位</p><p style="text-indent:25px">上海翼爾電子科技有限公司主要經(jīng)營(yíng)范圍是儀器儀表，擁有一支專(zhuān)業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗***量，壓力，溫度，物液位深受客戶(hù)的喜愛(ài)。公司從事儀器儀表多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專(zhuān)業(yè)化的隊(duì)伍，確保為客戶(hù)提供良好的產(chǎn)品及服務(wù)。上海翼爾電子立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶(hù)的變化需求。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2255363.html</p></div></div></div></div></div><div id="p7fmrtv" class="page-right twoColRt"><div id="ixu3ys8" class="box01 margin10 clearfix"><h3><a 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