山東孔板流量計(jì)銷(xiāo)售價(jià)格 **** 江蘇中徽測(cè)控儀表供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="長(zhǎng)期以來(lái),孔板流量計(jì)由于其技術(shù)成熟，山東孔板流量計(jì)銷(xiāo)售價(jià)格、標(biāo)準(zhǔn)化程度高、結(jié)構(gòu)簡(jiǎn)單、維護(hù)方便等特點(diǎn)而被地應(yīng)用。在海洋石油工程中也常常會(huì)用到孔板流量計(jì)。以采油平臺(tái)的測(cè)試分離器氣體出口測(cè)量為例,由于該介質(zhì)為氣體，山東孔板流量計(jì)銷(xiāo)售價(jià)格,一般壓力"><meta name="keywords" content="山東孔板流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" 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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>山東孔板流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)</p><p><span>***更新：</span>2021-01-12 01:11:53</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="dnp8w88" 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="nl8hjwi" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="eiau2rm" class="box"><p><p> 長(zhǎng)期以來(lái),孔板流量計(jì)由于其技術(shù)成熟，山東孔板流量計(jì)銷(xiāo)售價(jià)格、標(biāo)準(zhǔn)化程度高、結(jié)構(gòu)簡(jiǎn)單、維護(hù)方便等特點(diǎn)而被地應(yīng)用。在海洋石油工程中也常常會(huì)用到孔板流量計(jì)。以采油平臺(tái)的測(cè)試分離器氣體出口測(cè)量為例,由于該介質(zhì)為氣體，山東孔板流量計(jì)銷(xiāo)售價(jià)格,一般壓力較高,介質(zhì)成分較復(fù)雜,流量范圍隨著年份變化較大等特點(diǎn)，山東孔板流量計(jì)銷(xiāo)售價(jià)格,決定了該場(chǎng)合應(yīng)用孔板流量計(jì)為合適。尤其近年出現(xiàn)的可更換孔板更是解決了原有孔板流量計(jì)的低量程比的缺點(diǎn)而被地應(yīng)用。但是可更換的孔板價(jià)格昂貴,一般至少為同管徑孔板流量計(jì)價(jià)格的5倍以上。那么有沒(méi)有更好的產(chǎn)品來(lái)代替它,我們認(rèn)為V錐流量計(jì)就是代替它的優(yōu)先產(chǎn)品。 </p> <p> <br /> </p> <p> <br /> 為了智能電磁流量計(jì)能夠很好地正常使用，智能電磁流量計(jì)傳感器接地一定要安裝好。山東孔板流量計(jì)銷(xiāo)售價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東孔板流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289052754481/5890853.png"></div><p> 孔板流量計(jì)丈量?jī)?yōu)點(diǎn)1、規(guī)范節(jié)流件是全用的，并得到了國(guó)際規(guī)范組織的認(rèn)可，無(wú)需實(shí)流校準(zhǔn)，即可投用，在流量傳感器中也是獨(dú)一的;2、構(gòu)造易于復(fù)制，簡(jiǎn)單、結(jié)實(shí)、性能穩(wěn)定牢靠、價(jià)錢(qián)低廉;3、應(yīng)用范圍廣，包括全部單相流體(液、氣、蒸汽)、局部混相流，普通消費(fèi)過(guò)程的管徑、工作狀態(tài)(溫度、壓力)皆能夠丈量;4、檢測(cè)件和差壓顯現(xiàn)儀表可分開(kāi)不同廠家消費(fèi)，便與專(zhuān)業(yè)化范圍消費(fèi)。孔板流量計(jì)丈量缺陷1、丈量的反復(fù)性、準(zhǔn)確度在流量傳感器中屬于中等程度，由于眾多要素的影響撲朔迷離，準(zhǔn)確度難于進(jìn)步;2、范圍度窄，由于流量系數(shù)與雷諾數(shù)有關(guān),普通范圍度*3∶1～4∶1;3、有較長(zhǎng)的直管段長(zhǎng)度請(qǐng)求，普通難于滿(mǎn)足。特別對(duì)較大管徑，問(wèn)題愈加突出;4、壓力損失大;5、孔板以?xún)?nèi)孔銳角線(xiàn)來(lái)保證精度，因而傳感器對(duì)腐蝕、磨損、結(jié)垢、臟污敏感，長(zhǎng)期運(yùn)用精度難以保證，需每年拆下強(qiáng)檢一次;6、采用法蘭銜接，易產(chǎn)生跑、冒、滴、漏問(wèn)題，增加了維護(hù)工作量。 </p> <p> <br /> </p> <p> <br /> 江蘇插入式巴類(lèi)流量計(jì)廠家直供電磁流量計(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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東孔板流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289098819741/4521959.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> 電磁流量計(jì)的應(yīng)用有一定局限性，它只能測(cè)量導(dǎo)電介質(zhì)的液體流量，不能測(cè)量非導(dǎo)電介質(zhì)的流量，例如氣體和水處理較好的供熱用水。另外在高溫條件下其襯里需考慮。 </p> <p> 電磁流量計(jì)是通過(guò)測(cè)量導(dǎo)電液體的速度確定工作狀態(tài)下的體積流量。按照計(jì)量要求，對(duì)于液態(tài)介質(zhì)，應(yīng)測(cè)量質(zhì)量流量，測(cè)量介質(zhì)流量應(yīng)涉及到流體的密度，不同流體介質(zhì)具有不同的密度，而且隨溫度變化。如果電磁流量計(jì)轉(zhuǎn)換器不考慮流體密度，*給出常溫狀態(tài)下的體積流量是不合適的。長(zhǎng)期使用了的智能電磁流量計(jì)的內(nèi)管里會(huì)積污垢，這樣也會(huì)影響電磁流量計(jì)的測(cè)量效果。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東孔板流量計(jì)銷(xiāo)售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289042998618/4460086.png"></div><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℃。孔板流量計(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)意流量計(jì)有渦輪流量計(jì)、渦街流量計(jì)、電磁流量計(jì)、多普勒超聲波流量計(jì)、熱線(xiàn)測(cè)速流量計(jì)；上海長(zhǎng)頸噴嘴流量計(jì)哪個(gè)廠家質(zhì)量好</p><p style="text-indent:25px">質(zhì)量流量計(jì)就得到的應(yīng)用和重視。質(zhì)量流量計(jì)分直接式和間接式兩種。山東孔板流量計(jì)銷(xiāo)售價(jià)格</p><p style="text-indent:25px">孔板流量計(jì)的取壓方式孔板流量計(jì)的取壓方式有以下幾種：1、角接取壓包括鉆孔取壓和環(huán)室取壓，有利于縮短直管段，精度較高。其中鉆孔取壓適合管徑為DN400-DN3000，環(huán)室取壓適合DN50-DN400。2、法蘭取壓具有加工簡(jiǎn)單、易安裝易清理等特點(diǎn)，但精度低于角接取壓，適合管徑為DN50-DN1000。3、徑距取壓點(diǎn)固定，適合雷諾數(shù)大的場(chǎng)合，適合管徑為DN50-DN1000。環(huán)室取壓就屬于角接取壓，用上環(huán)室進(jìn)行均壓效果更好一些，但是DN600的孔板用環(huán)室成本就提高不少，若只用法蘭式角接取壓安裝時(shí)要注意到位也行，準(zhǔn)確度會(huì)有所降低；法蘭取壓較簡(jiǎn)單，容易裝配，但準(zhǔn)確度較角接取壓低一些；此外還有徑距取壓，但其壓差較小不易測(cè)量，因此很少采用，但徑距取壓適用于大管道的過(guò)熱蒸汽測(cè)量；根據(jù)你這種情況采用環(huán)室角接取壓效果，準(zhǔn)確度和靈敏度都高，但是成本稍高一些。山東孔板流量計(jì)銷(xiāo)售價(jià)格</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2804357.html</p></div></div></div></div></div><div id="fkcegip" class="page-right twoColRt"><div id="jt8qiu8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dcpr8bn" 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" 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