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href="http://m.cdcfah.com/">首頁(yè)?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://m.cdcfah.com/cp/second-yiqiyibiao_wybez/">物位儀表</a>?<a href="http://m.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格來(lái)電咨詢(xún) 江蘇中徽測(cè)控儀表供應(yīng)</p><div id="hfmj2a8" class="leftbox clearfix"><h1>山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格來(lái)電咨詢(xún) 江蘇中徽測(cè)控儀表供應(yīng)</h1><div id="3t78nam" class="proBig"><div id="cbtjol3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289029668701/3265337.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bfcebnk" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289029668701/3265337.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="n3ze22t" 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>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>山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)</p><p><span>***更新：</span>2020-12-31 07:09:04</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="3z997rl" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測(cè)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(huà): </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(jī): </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(hào)</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8a4wikr" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="m7zl73x" class="box"><p><p> 變送器零點(diǎn)漂移：如果使用時(shí)間較長(zhǎng)，變送器的零點(diǎn)可能會(huì)發(fā)生漂移，如果是負(fù)漂移，顯示壓差將會(huì)減小，顯示的流量也會(huì)減小。解決辦法：對(duì)變送器的零點(diǎn)進(jìn)行校正。上下游直管段長(zhǎng)度不夠，上下游直管段如果不夠長(zhǎng)，氣體將得不到充分發(fā)展，會(huì)使計(jì)量結(jié)果造成較大誤差，如果上游在規(guī)定直管段內(nèi)存在多個(gè)彎頭，將使計(jì)量結(jié)果偏低。解決辦法：改造蒸汽管道，山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格，是上下游直管段長(zhǎng)度達(dá)到規(guī)定要求。在節(jié)流裝置前加整流器。，山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格，山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格、差壓變送器的三閥組漏氣，如果三閥組中的高壓閥貨平衡閥漏氣，將會(huì)導(dǎo)致測(cè)量差壓值減小，測(cè)量結(jié)果就會(huì)偏低。解決辦法：如果三閥組中的高壓閥門(mén)漏氣，將該閥門(mén)進(jìn)行緊固，必要時(shí)進(jìn)行更換，如果三閥組中的平衡閥內(nèi)漏，將該閥門(mén)進(jìn)行緊固，必要時(shí)進(jìn)行更換。 </p> <p> <br /> </p> <p> <br /> 電磁流量計(jì)的常規(guī)直管段要求是**D后5D，在有彎管、閥門(mén)的情況分別有不同的要求。山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289029668701/3265337.png"></div><p style="text-indent:25px">水平管道基本安裝方式對(duì)于水平管道，測(cè)量氣體時(shí)推薦安裝在管道上方160度范圍內(nèi)，尤其對(duì)于有大量水粉的氣體時(shí)，我們只推薦這樣安裝;測(cè)量液體時(shí)推薦安裝在管道下方160度范圍內(nèi)，尤其對(duì)于含有大量氣體的液體時(shí)，我們只推薦這樣安裝;但有一點(diǎn)要注意，對(duì)于那些極易氣化的液體，如液態(tài)的烯烴類(lèi)介質(zhì)，安裝時(shí)插入方向同氣體，在管道上方。測(cè)量蒸汽時(shí)只推薦傳感器安裝在管道下方160度內(nèi)，并且要使傳感器處于整個(gè)測(cè)量裝置的比較高點(diǎn)。垂直管道基本安裝方式對(duì)于垂直管道，理論上可以在360度內(nèi)安裝。對(duì)于含有大量水分的濕氣體，推薦傳感器安裝時(shí)向上傾斜5度，對(duì)于含有大量氣體的液體，推薦傳感器安裝時(shí)向下傾斜5度，如右圖所示。對(duì)于蒸汽，推薦傳感器安裝時(shí)下傾斜5度，如右圖，且傳感器應(yīng)該處于整個(gè)測(cè)量系統(tǒng)中的比較高點(diǎn)。威力巴安裝所需直管段小直管段要求—彎管后2D安裝如圖所示。當(dāng)管道上、下游的直管段不夠長(zhǎng)時(shí)，我們推薦在彎管后2倍管道內(nèi)徑處安裝威力巴，因在彎管后的流體剖面較復(fù)雜，需將流體系數(shù)K做適當(dāng)?shù)恼{(diào)整。調(diào)整K系數(shù)后，測(cè)量精度為±3%。山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格流量計(jì)可用于氣體、液體、蒸汽等介質(zhì)流量的測(cè)量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289114609938/9762879.png"></div><p style="text-indent:25px">電極襯里附著物的影響在丈量有附著沉淀物的流體時(shí)，電極表面將受污染，經(jīng)常引起零點(diǎn)變動(dòng)，故必需留意。零點(diǎn)變化和電極污染程度兩者的關(guān)系，要進(jìn)行定量分析比較難題，但可以說(shuō)，電極直徑越小，所受的影響越少，在使用中，應(yīng)留意電極的清污，以防止附著。在襯里上附著沉淀物時(shí)產(chǎn)生的誤差Δε，假如附著的厚度是一樣，則可由式：Δε=1-2/[1+(Kω/Kf)+(1-Kω/Kf)×(1-2t/D)2]計(jì)算，式中Kω、Kf分別為附著物和丈量流體的電導(dǎo)率，附著物厚度為t，直徑為D。若式中，Kω和Kf相等，則無(wú)誤差，附著物的電導(dǎo)率較低時(shí)，上式也成立，但由于會(huì)增加電極的輸出阻抗，因此受到限制，如絕緣性沉淀物浸在流體中就是這種情況。相反，如附著金屬粉末等，因高電導(dǎo)率的附著層，使感應(yīng)電勢(shì)短路，使電極輸出偏低，造成負(fù)偏差。在丈量具有沉淀附著物的流體時(shí)，除了選擇如玻璃或聚四氯乙烯等難以附著沉淀的襯里外，還應(yīng)增其流速。假如在流體中平均地含有氣泡，則丈量的是包括氣泡的體積流量，并且使所測(cè)流量值不不亂，而引入誤差。綜上所述，在選用流量計(jì)特別是大口徑電磁流量計(jì)時(shí)，應(yīng)考慮今后對(duì)傳感器的電極及襯里的維護(hù)題目。如選用上海光華·愛(ài)而美特儀器有限公司的刮刀電極或可更換式電極.</p><p> 熱式質(zhì)量流量計(jì)（恒溫差TMF）優(yōu)點(diǎn):（1）球閥安裝，安裝拆卸方便。并可以帶壓安裝。（2）基于金氏定律，直接測(cè)量質(zhì)量流量。測(cè)量值不受壓力和溫度影響。（3）響應(yīng)迅速。（4）量程范圍大，管道式安裝小可以測(cè)量8.8mm管道的流量，比較大可以測(cè)到30’’（5）插入式類(lèi)型的流量計(jì)，一支流量計(jì)可以用于測(cè)量多種管徑。缺點(diǎn):（1）精度不及其他類(lèi)型流量計(jì)，一般為3％。（2）適用范圍窄，只能用于測(cè)量干燥的非**性的氣體，如壓縮空氣、氮?dú)?、氬氣及其他中性氣體。 </p> <p> <br /> </p> <p> <br /> 直接式質(zhì)量流量計(jì)利用與質(zhì)量流量直接有關(guān)的原理進(jìn)行測(cè)量；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png"></div><p style="text-indent:25px">電磁流量計(jì)接地的原因：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(xiàn)必須不傳任何干擾電壓，因此電磁流量計(jì)要求有非?？煽康慕拥兀龊媒拥仄帘?，否則就會(huì)產(chǎn)生干擾電流。電磁流量計(jì)接地的好處：若連接流量計(jì)的管道是(相對(duì)于被測(cè)介質(zhì))絕緣的則要用接地環(huán)，它的材質(zhì)應(yīng)根據(jù)被測(cè)介質(zhì)的腐蝕性選用。如果是聚四氟乙烯內(nèi)襯的測(cè)量傳感器，為了保測(cè)量傳感器能正常工作，要選用接地環(huán)。超聲波流量計(jì)電磁流量計(jì)的測(cè)量原理不依賴(lài)流量的特性，如果管路內(nèi)有一定的湍流與漩渦產(chǎn)生在非測(cè)量區(qū)內(nèi)則與測(cè)量無(wú)關(guān)。蘇州孔板流量計(jì)銷(xiāo)售價(jià)格</p><p style="text-indent:25px">電磁流量計(jì)的安裝與調(diào)試比其它流量計(jì)復(fù)雜，且要求更嚴(yán)格。山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格</p><p style="text-indent:25px">渦街流量計(jì)的局限性：（1）口徑越大，分辨率越低，通常滿(mǎn)管時(shí)流量計(jì)用于DN400以下。（2）對(duì)管道機(jī)械振蕩較活絡(luò)，不宜用于強(qiáng)振蕩場(chǎng)所。（3）當(dāng)流體有壓力脈動(dòng)或流量脈動(dòng)時(shí)，示值大幅度偏高，影響較大，因而不適用于脈動(dòng)流。（4）流體溫度太高時(shí)，傳感器還有艱難，通常流體溫度≤420℃?？装辶髁坑?jì)的局限性：（1）規(guī)模度窄，因?yàn)橥獗硇盘?hào)（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(jì)中屬中等水平。因?yàn)楹芏嘁蛩氐挠绊憮渌访噪x，度難以進(jìn)步。（3）節(jié)流裝置與差壓顯現(xiàn)外表之間引壓管線(xiàn)為薄弱環(huán)節(jié)，易發(fā)生走漏、阻塞及凍住、信號(hào)失真等毛病。（4）壓損大（指孔板、噴嘴）。（5）現(xiàn)場(chǎng)裝置條件要求較高，如需較長(zhǎng)的直管段（指孔板、噴嘴），通常難以滿(mǎn)意山東長(zhǎng)頸噴嘴流量計(jì)銷(xiāo)售價(jià)格</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2641755.html</p></div></div></div></div></div><div id="vk8i7dk" class="page-right twoColRt"><div id="3cwos7x" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rbdacol" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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