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class="pic"><img src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039036405821/5647925.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cu08yqs" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039036405821/5647925.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="sga0c8m" 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>旋進(jìn)流量計(jì)直銷,流量計(jì)</p><p><span>***更新：</span>2021-01-09 04:21:34</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="wqgq0u8" 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="ywk0k2s" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="k2s888g" class="box"><p><p style="text-indent:25px">超聲波流量計(jì)的優(yōu)點(diǎn)：(1) 超聲波流量計(jì)是一種非接觸式測(cè)量儀表，可用來測(cè)量不易接觸、不易觀察的流體流量和大管徑流量。它不會(huì)改變流體的流動(dòng)狀態(tài)，不會(huì)產(chǎn)生壓力損失，旋進(jìn)流量計(jì)直銷，且便于安裝。(2) 可以測(cè)量強(qiáng)腐蝕性介質(zhì)和非導(dǎo)電介質(zhì)的流量，旋進(jìn)流量計(jì)直銷。(3) 超聲波流量計(jì)的測(cè)量范圍大，管徑范圍從20mm～5m。(4) 超聲波流量計(jì)可以測(cè)量各種液體和污水流量。(5) 超聲波流量計(jì)測(cè)量的體積流量不受被測(cè)流體的溫度、壓力、粘度及密度等熱物性參數(shù)的影響?？梢宰龀晒潭ㄊ胶捅銛y式兩種形式。電磁流量計(jì)的傳感器應(yīng)垂直安裝，旋進(jìn)流量計(jì)直銷，并且流體自下而上流動(dòng)，以滿足固、液兩項(xiàng)處于混合的狀態(tài)。旋進(jìn)流量計(jì)直銷</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="旋進(jìn)流量計(jì)直銷,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039036405821/5647925.png"></div><p style="text-indent:25px">流量計(jì)安裝、拆卸、運(yùn)輸及保管存放時(shí)嚴(yán)禁從車上拋甩地面或迭落掉地，因?yàn)榱髁坑?jì)內(nèi)部還有非常精密的配件，如果發(fā)生強(qiáng)烈震動(dòng)的話，就會(huì)使它內(nèi)部發(fā)生變形或者是斷線。特別是內(nèi)部不可以接觸油類物，以及含有酸、堿性質(zhì)的任何物質(zhì)以免發(fā)生腐蝕或者破壞現(xiàn)象。液體流量計(jì)外表擦拭步驟： 1.先用干細(xì)棉布或擦拭紙擦拭液體流量計(jì)，以擦拭其灰塵或油污等，小心注意其儀器外表勿受傷。 2.再用干凈細(xì)干棉布沾上工業(yè)用酒精，擦拭儀器外表，尤其金屬及非金屬表面。旋進(jìn)流量計(jì)直銷流量計(jì)安裝、拆卸、運(yùn)輸及保管存放時(shí)嚴(yán)禁從車上拋甩地面或迭落掉地。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="旋進(jìn)流量計(jì)直銷,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039135194909/4113195.png"></div><p style="text-indent:25px">通常孔板流量計(jì)的測(cè)量準(zhǔn)確度能夠滿足標(biāo)準(zhǔn)的要求，但在實(shí)際使用中，由于節(jié)流裝置的設(shè)計(jì)、制造、安裝和使用不符合標(biāo)準(zhǔn)要求等原因，影響了流量的測(cè)量準(zhǔn)確度。通過對(duì)孔板節(jié)流裝置測(cè)量原理、安裝要求、儀表的選擇等因素的分析，指出影響孔板流量計(jì)測(cè)量準(zhǔn)確度的根本因素是節(jié)流裝置的幾何形狀和流動(dòng)狀態(tài)是否偏離設(shè)計(jì)標(biāo)準(zhǔn)。只有使流量計(jì)在正確的工況下運(yùn)行，才能減少。天然氣計(jì)量中，使用較多的是孔板流量計(jì)，它由節(jié)流裝置、導(dǎo)壓管、差壓計(jì)、壓力計(jì)和溫度計(jì)等組成。正常情況下，它的測(cè)量準(zhǔn)確度能滿足國家標(biāo)準(zhǔn)和石油部標(biāo)準(zhǔn)的要求。但在實(shí)際工作中，由于節(jié)流裝置設(shè)計(jì)、制造、安裝和使用不符合標(biāo)準(zhǔn)要求，參數(shù)選擇不當(dāng)，用戶負(fù)荷變化，人工取值不準(zhǔn)等原因，都不同程度地影響著流量測(cè)量的準(zhǔn)確度。因此，找出孔板流量計(jì)測(cè)量誤差產(chǎn)生的原因及解決辦法是關(guān)系到計(jì)量準(zhǔn)確的重要工作。</p><p style="text-indent:25px">流量計(jì)儀表選型的步驟如下：1、依據(jù)流體種類及五個(gè)方面考慮因素初選可用儀表類型(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，為深入的分析比較準(zhǔn)備條件；3、采用淘汰法逐步集中到1～2種類型，對(duì)五個(gè)方面因素要反復(fù)比較分析然后確定預(yù)選目標(biāo)。注意事項(xiàng)：流體特性主要指燃?xì)獾膲毫?、溫度、密度、黏度、壓縮性等，由于煤氣的體積隨著溫度、壓力而變化，應(yīng)考慮是否要補(bǔ)償修正。儀表性能是指儀表的精度、重復(fù)性、線性度、量程比、壓力損失、起始流量、輸出信號(hào)及響應(yīng)時(shí)間等，選流量計(jì)時(shí)應(yīng)對(duì)上述指標(biāo)進(jìn)行仔細(xì)分析比較，選擇能滿足計(jì)量介質(zhì)流量要求的儀表。安裝條件是指燃?xì)饬飨?、管道走向、上下游直管道長度、管徑、空間位置及管件等，這些都會(huì)影響燃?xì)饷簹饬髁坑?jì)的準(zhǔn)確運(yùn)行、維護(hù)保養(yǎng)和使用壽命。經(jīng)濟(jì)因素是指購置費(fèi)、安裝費(fèi)、維護(hù)費(fèi)、校驗(yàn)費(fèi)及備品備件等，其又受燃?xì)饷簹饬髁坑?jì)的性能、可靠性、壽命等影響。精度等級(jí)和功能根據(jù)測(cè)量要求和使用場(chǎng)合選擇儀表精度等級(jí)，做到經(jīng)濟(jì)合算。比如用于貿(mào)易結(jié)算、產(chǎn)品交接和能源計(jì)量的場(chǎng)合。壓式流量計(jì)由一次裝置(檢測(cè)件）和二次裝置（差壓轉(zhuǎn)換器和流量顯示儀表）組成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="旋進(jìn)流量計(jì)直銷,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039044648371/6738453.png"></div><p style="text-indent:25px">流量計(jì)實(shí)際運(yùn)行工況與標(biāo)定工況環(huán)境條件不符，在現(xiàn)場(chǎng)使用過程中，常常因?yàn)楝F(xiàn)場(chǎng)的環(huán)境因素（溫度和壓力等）與標(biāo)定時(shí)的溫度和壓力有很大的差別，這樣不僅會(huì)使得在實(shí)際運(yùn)行時(shí)產(chǎn)生較大的測(cè)量誤差，與此同時(shí)流量計(jì)的標(biāo)定曲線也改變了，由此導(dǎo)致了在實(shí)際工況下使實(shí)際運(yùn)行的標(biāo)定曲線偏離了標(biāo)定曲線，這樣不僅使計(jì)量交接不公平，而且影響了原油交接雙方的經(jīng)濟(jì)利益。壓力對(duì)流量計(jì)的影響：由于壓力的作用，流量計(jì)殼體的彈性變形，隨著壓力增高，計(jì)量腔體積增大，由此引起轉(zhuǎn)子與殼體之間的間隙增大，漏失量也隨著增大。轉(zhuǎn)子流量計(jì)流量值應(yīng)作必要的換算。機(jī)械式流量計(jì)直銷</p><p style="text-indent:25px">渦街流量計(jì)無可動(dòng)部件，測(cè)量元件結(jié)構(gòu)簡(jiǎn)單。旋進(jìn)流量計(jì)直銷</p><p style="text-indent:25px">在電磁流量計(jì)附近加負(fù)壓防止閥，打開閥門接通大氣壓，以防止在傳感器內(nèi)產(chǎn)生負(fù)壓。電磁流量計(jì)下游接有垂直管道時(shí)，若用流量傳感器上游閥門來關(guān)閉或調(diào)節(jié)流量，傳感器測(cè)量管內(nèi)將形成負(fù)壓。為了防止負(fù)壓，需加背壓或使用下游閥門來調(diào)節(jié)和關(guān)閉流量。電磁流量計(jì)適當(dāng)?shù)木S護(hù)空間，大口徑流量計(jì)往往安裝在儀表井內(nèi)，為了管道安裝、接線、檢查和維護(hù)的方便，需要留有適當(dāng)?shù)目臻g。為了觀測(cè)、接線和維護(hù)的方便，儀表安裝應(yīng)距地面有一定的高度，以便于清洗、安裝。旋進(jìn)流量計(jì)直銷</p><p style="text-indent:25px">上海翼爾電子科技有限公司總部位于海灣旅游區(qū)莘奉公路4960號(hào)110室，是一家電子科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓，電工設(shè)備，電氣設(shè)備、儀器儀表，電器設(shè)備，五金標(biāo)準(zhǔn)件，五金交電，電線電纜，金屬制品，機(jī)械設(shè)備的批發(fā)、零售，儀器儀表及機(jī)電設(shè)備的加工（限分支機(jī)構(gòu)經(jīng)營）。的公司。上海翼爾電子深耕行業(yè)多年，始終以客戶的需求為向?qū)В瑸榭蛻籼峁?**的流量，壓力，溫度，物液位。上海翼爾電子繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。上海翼爾電子始終關(guān)注儀器儀表市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: 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