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href="http://www.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?江西金屬轉(zhuǎn)子流量計廠服務(wù)至上江蘇中徽測控儀表供應(yīng)</p><div id="sgs3ggm" class="leftbox clearfix"><h1>江西金屬轉(zhuǎn)子流量計廠服務(wù)至上江蘇中徽測控儀表供應(yīng)</h1><div id="aoej7nx" class="proBig"><div id="dg82x4i" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289060000603/4529138.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="womr8kv" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289060000603/4529138.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="pcsylaq" 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>江西金屬轉(zhuǎn)子流量計廠,流量計</p><p><span>***更新：</span>2020-12-26 03:10:12</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="iklqr7u" 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="22nfou7" class="page-proshow02"><p class="title">詳細說明</p><div id="nua8hxb" class="box"><p><p style="text-indent:25px">孔板流量計管道安裝條件如下：（1）節(jié)流件前后的直管段必須是直的，不得有肉眼可見的彎曲。(2)用于安裝節(jié)流孔的直段必須平滑，如果不平滑，必須對流量系數(shù)應(yīng)用粗糙度來修正稀疏。(3)流體的流動是為了在節(jié)流孔的前1d形成充分發(fā)達的紊流速度分布，使該分布成為均勻的軸對稱形1）直管段必須是圓的，而且對節(jié)流件前2D范圍，其圓度要求其甚為嚴格，并且有一定的圓度指標。具體衡量方法：(a)在節(jié)流孔前od、d/2、d、2d四個垂直管截面上，以較大的角度距離測定至少四個管內(nèi)徑的測定值，取平均值d，江西金屬轉(zhuǎn)子流量計廠。任意內(nèi)徑單測量值與平均值之差不得超過±0，江西金屬轉(zhuǎn)子流量計廠，江西金屬轉(zhuǎn)子流量計廠.3%（B）在節(jié)流件后，在OD和2D位置用上述方法測得8個內(nèi)徑單測值，任意單測值與D比較，其*大偏差不得超過±2%2）節(jié)流件前后要求一段足夠長的直管段，這段足夠長的直管段和節(jié)流件前的局部阻力件形式有關(guān)和直徑比β有關(guān)。(4)節(jié)流孔上游側(cè)的第1電阻體和第2電阻體間的直管段的長度可以取第2電阻體的形狀和β=0.7(與實際的β值無關(guān))的值的1/2質(zhì)量流量傳感器安裝應(yīng)使傳感器流向標識與流體流向一致。并使箭頭指向與變送器內(nèi)部組態(tài)的流量方向一致。江西金屬轉(zhuǎn)子流量計廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西金屬轉(zhuǎn)子流量計廠,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289060000603/4529138.png"></div><p> 電磁流量計的安裝與調(diào)試比其它流量計復(fù)雜，且要求更嚴格。變送器和轉(zhuǎn)換器必須配套使用，兩者之間不能用兩種不同型號的儀表配用。在安裝變送器時，從安裝地點的選擇到具體的安裝調(diào)試，必須嚴格按照產(chǎn)品說明書要求進行。安裝地點不能有振動，不能有強磁場。在安裝時必須使變送器和管道有良好的接觸及良好的接地。變送器的電位與被測流體等電位。在使用時，必須排盡測量管中存留的氣體，否則會造成較大的測量誤差。電磁流量計用來測量帶有污垢的粘性液體時，粘性物或沉淀物附著在測量管內(nèi)壁或電極上，使變送器輸出電勢變化，帶來測量誤差，電極上污垢物達到一定厚度，可能導(dǎo)致儀表無法測量。 </p> <p> <br /> </p> <p> <br /> 鹽城孔板流量計供貨廠電磁流量計有一系列優(yōu)良特性,可以解決其它流量計不易應(yīng)用的問題,如臟污流、腐蝕流的測量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西金屬轉(zhuǎn)子流量計廠,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289134746609/1367639.png"></div><p style="text-indent:25px">孔板流量計的一些應(yīng)用優(yōu)勢。精度高：孔板型流量計的精度為丈量值的±0.5%,貿(mào)易計量級為±0.3%（系統(tǒng)精度需參呼應(yīng)用條侏及二次儀表的精度）。反復(fù)性好：孔板型流量計的反復(fù)性較好，為±0.1%.量程比寬：孔板型流量計的量程較其它類型的差壓流量計大得多。正常狀況下為10:1,若有需求不是也可加大。在雷諾數(shù)高于8000時輸出信號為線性，若低于8000也可丈量，但需對輸出信號依據(jù)曲線中止修正，流量計有構(gòu)造所構(gòu)成的邊境層效應(yīng)，使節(jié)流件關(guān)鍵部位不會磨損，因而能夠堅持幾何尺寸長期不變，因而能長期穩(wěn)定工作而不需求標定。流量計是純機械體，因而耐高溫、耐高壓、耐腐蝕及不怕振動，可測的流體（液體、氣體、蒸汽）替代緊縮空氣流量計，丈量范圍寬（微小流量~大流量），適用的管徑DN15~二、孔板流量計裝置辦法面的一些相關(guān)學(xué)問，管道法蘭裝置的辦法為：孔板流量計的兩端各有一個法蘭，與管道上的法蘭中止銜接。是通常工業(yè)比擬常用的銜接方式，適用于各個管道口徑的銜接，此種裝置方式可與差壓變送器中止分體裝置，通常運用于丈量蒸汽的流量和高溫介質(zhì)的流量，法蘭夾裝式裝置辦法為：孔板流量計兩端各配有法蘭，當銜接的管道無法蘭銜接時，可選用焊接的方式中止銜接。</p><p style="text-indent:25px">孔板流量計是應(yīng)用為普遍、為普遍的是壓差式流量計?？装辶髁坑嬘晒?jié)流安裝和差壓計或者由節(jié)流安裝與差壓變送器連同二次表共同組成。節(jié)流安裝的運用歷史長久，在國際，國內(nèi)都已規(guī)范化。節(jié)流安裝是差壓丈量時一次元件，人們應(yīng)用它在管道內(nèi)使流體產(chǎn)生壓差。應(yīng)用導(dǎo)壓管把節(jié)流安裝前后產(chǎn)生的壓差傳送給差壓變送器，再輸入到二次儀表，便顯現(xiàn)出管道內(nèi)流體的瞬時流量或累計流量。應(yīng)用調(diào)理儀表也能夠?qū)α髁客Ｖ拐{(diào)理。節(jié)流安裝構(gòu)造簡單，丈量精確，運用牢靠，檢修、維護都很便當孔板流量計輸入信號源不穩(wěn)故剖析如下環(huán)室取壓規(guī)范孔板：屬規(guī)范孔板。由于完成了環(huán)室取壓，進步了丈量精度，縮短了裝置時所需小直線管段長度，可在各部門普遍應(yīng)用，角接單獨鉆孔取壓規(guī)范孔板：屬規(guī)范孔板。當管徑在400毫米以上時，多采用此種方式。取壓方式為法蘭單獨鉆孔取壓、圓形均壓環(huán)取壓或方形均壓環(huán)取壓?？装宸绞娇蔀閹П谆蚍且?guī)范的圓缺孔板等，屬規(guī)范孔板。它不管管道直徑大小，其上、下游取壓孔中心均位于距孔板兩側(cè)端面各式各1時（25.5mm）處，煉油系統(tǒng)普遍采用此種方式。測量液體流量時引壓管水平段應(yīng)在同一水平面內(nèi)；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西金屬轉(zhuǎn)子流量計廠,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289067451760/3371916.png"></div><p> 關(guān)于超聲波流量計固定式和便攜式有什么不同 </p> <p> （1）合適使用的場合不一樣 </p> <p> 固定式超聲波流量計用于安裝在某一固定方位，對某一特定管道內(nèi)流體的流量進行長時間不間斷的計量；便攜式超聲波流量計具有很大的機動性，首要用于對不一樣管道的流體流量作臨時性丈量。 </p> <p> （2）供電方法不一樣 </p> <p> 固定式超聲波流量計要求長時間接連運轉(zhuǎn)，所以要運用220V交流電源，便攜式超聲波流量計既能夠運用現(xiàn)場的交流電源，也備有內(nèi)置充電電池，能夠接連作業(yè)5～10h［小時］，方便了不一樣場合臨時性流量丈量的需要。 </p> <p> （3）有些功用不一樣 </p> <p> 因定式超聲波流量計，通常都有4-20mA信號輸出等功用，供遠傳顯現(xiàn)運用，但其內(nèi)部只能存貯一條管道的參數(shù)；便攜式超聲波流量計**為了現(xiàn)場檢查當時流量和短時間內(nèi)的累計流量，故一般無輸出信號功用，但為了方便丈量不一樣管道流量，它具有豐厚的儲存功用，能夠一起存貯數(shù)十條不一樣管道的參數(shù)，供隨時調(diào)出運用。 </p> <p> <br /> 智能電磁流量計在使用時我們要求被測介質(zhì)必須是地電位，一般都是通過管道或法蘭接地；鹽城孔板流量計供貨廠</p><p style="text-indent:25px">標準孔板標準孔板是一類規(guī)格多的標準節(jié)流裝置，廣泛應(yīng)用于各種流體特別是氣體流量測量中；江西金屬轉(zhuǎn)子流量計廠</p><p> 超聲波流量計是通過測量流體速度來確定體積流量，對液體應(yīng)該測量它的質(zhì)量流量，儀表測量質(zhì)量流量是通過體積流量乘以人為設(shè)定的密度后得到的，當流體溫度變化時，流體密度是變化的，人為設(shè)定密度值，不能保證質(zhì)量流量的準確度。只能在測量流體速度的同時，又測量了流體密度，才能通過運算，得到真實質(zhì)量流量值。 </p> <p> 應(yīng)用概況: </p> <p> 傳播時間法應(yīng)用于清潔、單相液體和氣體。典型應(yīng)用有工廠排放液、:怪液、液化天然氣等;氣體應(yīng)用方面在高壓天然氣領(lǐng)域已有使用良好的經(jīng)驗; </p> <p> 多普勒法適用于異相含量不太高的雙相流體,例如:未處理污水、工廠排放液、臟流程液;通常不適用于非常清潔的液體。江西金屬轉(zhuǎn)子流量計廠</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2564540.html</p></div></div></div></div></div><div id="z27lbbn" class="page-right twoColRt"><div id="i7srcdi" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="u8gbnn7" 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="il7rw7h" 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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