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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="tn739lk" class="twoCol"><div id="g84j28i" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://www.cdcfah.com/cp/second-yiqiyibiao_wybez/">物位儀表</a>?<a href="http://www.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?宿遷氣體渦輪流量計(jì)找哪家江蘇中徽測(cè)控儀表供應(yīng)</p><div id="78iq392" class="leftbox clearfix"><h1>宿遷氣體渦輪流量計(jì)找哪家江蘇中徽測(cè)控儀表供應(yīng)</h1><div id="zvnk3k3" class="proBig"><div id="clnkoah" class="bigimg"><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 id="az8z9sw" 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="qfcub84" 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>宿遷氣體渦輪流量計(jì)找哪家,流量計(jì)</p><p><span>***更新：</span>2021-01-18 03:07:24</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="qjgnzgn" 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="nxeqnz2" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="uo2n9r8" class="box"><p><p style="text-indent:25px">孔板流量計(jì)測(cè)量老不準(zhǔn)，處理方法有技巧！1、差壓管路堵塞，疏通差壓管路；2、差壓計(jì)故障，檢查差壓計(jì)；3、差壓變送器示值明顯偏離，應(yīng)檢查尺示值；4、節(jié)流元件安裝方向有誤，重新安裝節(jié)流元件；5、被測(cè)介質(zhì)工況參數(shù)與設(shè)計(jì)節(jié)流裝置時(shí)采用的參數(shù)不一致，按相關(guān)公式修正，必要時(shí)應(yīng)重新計(jì)算差壓值；6、節(jié)流裝置前后直管段長(zhǎng)度不夠，應(yīng)調(diào)整直管段長(zhǎng)度；7、直管段內(nèi)徑超差，實(shí)測(cè)直管段內(nèi)徑，重新計(jì)算比較大流量；8、節(jié)流孔徑超差，實(shí)測(cè)節(jié)流孔徑，重新計(jì)算比較大流量；9、節(jié)流元件變形，更換節(jié)流元件；10、節(jié)流元件上有附著物，清洗更換節(jié)流元件；11、孔板的尖銳一側(cè)應(yīng)該迎向流體流向?yàn)槿肟诙?，呈喇叭形的一?cè)為出口端。如果裝反了，顯示將會(huì)偏小很多。解決辦法：檢查孔板安裝方向，正確安裝孔板。12、孔板的入口邊緣磨損，如果孔板使用時(shí)間較長(zhǎng)，特別是在被測(cè)介質(zhì)夾雜固體顆粒等雜物情況下，宿遷氣體渦輪流量計(jì)找哪家，都會(huì)造成孔板的幾何形狀和尺寸的變化，如果造成開(kāi)孔變大或開(kāi)孔邊緣變鈍，宿遷氣體渦輪流量計(jì)找哪家，測(cè)量壓差就會(huì)變小，宿遷氣體渦輪流量計(jì)找哪家，流量顯示就會(huì)偏低。解決辦法：對(duì)孔板進(jìn)行重新加工?？装辶髁坑?jì)又稱(chēng)為差壓式流量計(jì)，是由一次檢測(cè)件(節(jié)流件)和二次裝置(差壓變送器和流量顯示儀)組成；宿遷氣體渦輪流量計(jì)找哪家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="宿遷氣體渦輪流量計(jì)找哪家,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289134746609/1367639.png"></div><p style="text-indent:25px">主要安裝要求是對(duì)于直管段的要求及管道振動(dòng)要求，渦街流量傳感器的上游側(cè)和下游側(cè)應(yīng)有較長(zhǎng)的直管段;管道不能有振動(dòng)，如有振動(dòng)，則需對(duì)流量計(jì)兩側(cè)加固定裝置。對(duì)于渦街流量計(jì)來(lái)說(shuō)，測(cè)量氣體流量時(shí)，若被測(cè)氣體含有少量的液體，流量計(jì)應(yīng)安裝在管線(xiàn)的較高處。測(cè)量液體時(shí)，若被測(cè)液體中含有少量的氣體，流量計(jì)應(yīng)安裝在管線(xiàn)的較低處。測(cè)壓孔和測(cè)溫孔：需要測(cè)壓時(shí),須將測(cè)壓孔設(shè)置在流量計(jì)下游2~7D的地方。需要測(cè)溫時(shí),將溫度傳感器設(shè)置在離測(cè)壓點(diǎn)下游的1~2D之間處。管道支撐：盡量將流量計(jì)安裝在振動(dòng)加速度小于20m/s2的地方。當(dāng)管道振動(dòng)過(guò)強(qiáng)時(shí),應(yīng)對(duì)管道安裝加固支撐。封墊片：切不可將密封墊片突出到管道中,否則將導(dǎo)致無(wú)法接受的誤差。宿遷氣體渦輪流量計(jì)找哪家污水流量計(jì)結(jié)構(gòu)簡(jiǎn)單、牢固可靠、使用壽命長(zhǎng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="宿遷氣體渦輪流量計(jì)找哪家,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436288983535731/8125157.png"></div><p> 孔板流量計(jì)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(jiàn)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(duì)流量系數(shù)應(yīng)用粗糙度來(lái)修正稀疏。(3)流體的流動(dòng)是為了在節(jié)流孔的前1d形成充分發(fā)達(dá)的紊流速度分布，使該分布成為均勻的軸對(duì)稱(chēng)形1）直管段必須是圓的，而且對(duì)節(jié)流件前2D范圍，其圓度要求其甚為嚴(yán)格，并且有一定的圓度指標(biāo)。具體衡量方法：(a)在節(jié)流孔前od、d/2、d、2d四個(gè)垂直管截面上，以較大的角度距離測(cè)定至少四個(gè)管內(nèi)徑的測(cè)定值，取平均值d。任意內(nèi)徑單測(cè)量值與平均值之差不得超過(guò)±（B）在節(jié)流件后，在OD和2D位置用上述方法測(cè)得8個(gè)內(nèi)徑單測(cè)值，任意單測(cè)值與D比較，其*大偏差不得超過(guò)±2%2）節(jié)流件前后要求一段足夠長(zhǎng)的直管段，這段足夠長(zhǎng)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(zhǎng)度可以取第2電阻體的形狀和β=。 </p><p style="text-indent:25px">流動(dòng)本身的脈動(dòng)，如擬裝儀表位置的上游有往復(fù)泵或調(diào)節(jié)閥，或下游有大負(fù)荷變化等，應(yīng)改換測(cè)量位置或在管道系統(tǒng)予以補(bǔ)救改進(jìn)，如加裝緩沖罐;若是儀表自身的振蕩，如測(cè)量時(shí)氣體壓力過(guò)低，儀表上游閥門(mén)未全開(kāi)，調(diào)節(jié)閥未裝在儀表下游等原因，應(yīng)針對(duì)性改進(jìn)克服，或改選用有阻尼裝置的儀表。5、轉(zhuǎn)子流量計(jì)要排盡液體用儀表內(nèi)氣體進(jìn)出口不在直線(xiàn)的角型金屬轉(zhuǎn)子流量計(jì)，用于液體時(shí)注意外傳浮子位移的引申套管內(nèi)是否殘留空氣，必須排盡;若液體含有微小氣泡流動(dòng)時(shí)極易積聚在套管內(nèi)，更應(yīng)定時(shí)排氣。這點(diǎn)對(duì)小口徑儀表更為重要，否則影響流量示值明顯。6、轉(zhuǎn)子流量計(jì)流量值應(yīng)作必要換算若非按使用密度、粘度等介質(zhì)參數(shù)向轉(zhuǎn)子流量計(jì)生產(chǎn)廠(chǎng)家專(zhuān)門(mén)訂制的儀表，液體用儀表通常以水標(biāo)定流量，氣體儀表用空氣標(biāo)定，定值在工程標(biāo)準(zhǔn)狀態(tài)。使用條件的流體密度、氣體壓力溫度與標(biāo)定不一致時(shí)，要做必要換算。換算公式和方法轉(zhuǎn)子流量計(jì)的制造廠(chǎng)使用說(shuō)明書(shū)中都有詳述。電磁流量計(jì)測(cè)量通道是段光滑直管,不會(huì)阻塞,適用于測(cè)量含固體顆粒的液固二相流體,如紙漿、泥漿、污水等;</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="宿遷氣體渦輪流量計(jì)找哪家,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png"></div><p> 孔板流量計(jì)前后產(chǎn)生一個(gè)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(hào)傳送給差壓變送器,轉(zhuǎn)換成4-20ma.DC模擬信號(hào)輸出,遠(yuǎn)轉(zhuǎn)給流量積算儀,實(shí)現(xiàn)流體流量的計(jì)量.質(zhì)量型流量計(jì),利用智能型差壓變送器,對(duì)工況溫/壓進(jìn)行自動(dòng)補(bǔ)償后,實(shí)現(xiàn)對(duì)流體質(zhì)量流量的測(cè)量 </p> <p> 孔板流量計(jì)要送熱風(fēng)，熱風(fēng)爐離高爐一般比較近，且彎頭較多。過(guò)去曾使用標(biāo)準(zhǔn)孔板，因直管段不夠長(zhǎng)而誤差較大。本儀表因?yàn)橛芯鶋涵h(huán)和多個(gè)取壓口，需要2D長(zhǎng)的直管段即可。安裝在熱風(fēng)爐送風(fēng)管上之后，應(yīng)用情況非常滿(mǎn)意，已經(jīng)有三十幾座熱風(fēng)爐裝上了環(huán)形孔板流量計(jì)，運(yùn)行3年多沒(méi)有故障。孔板流量計(jì)可測(cè)量管道中各種流體的流量，可測(cè)量的介質(zhì)有液體、氣體、蒸汽；上海長(zhǎng)頸噴嘴流量計(jì)價(jià)格</p><p style="text-indent:25px">孔板流量計(jì)節(jié)流裝置結(jié)構(gòu)易于復(fù)制，簡(jiǎn)單、牢固，性能穩(wěn)定可靠，使用期限長(zhǎng)，價(jià)格低廉。宿遷氣體渦輪流量計(jì)找哪家</p><p> 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> <br /> </p> <p> <br /> 宿遷氣體渦輪流量計(jì)找哪家</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2893614.html</p></div></div></div></div></div><div id="gvcz32r" class="page-right twoColRt"><div id="ihew8ti" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kegdahe" 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