徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好江蘇中徽測(cè)控儀表供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="孔板流量計(jì)分類1、內(nèi)藏孔板這一類孔板是將孔板與測(cè)量管做成一體，一般用于小管徑（DN≤50mm），所以又稱小管徑孔板。特點(diǎn)：（1）、結(jié)構(gòu)緊湊，牢固耐用，工作可靠。（2）、可以測(cè)小流量，現(xiàn)場(chǎng)安裝方便。（3），徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好、要求配"><meta name="keywords" content="徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好,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" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> 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class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="nbnz8pr" class="twoCol"><div id="rkr7rvo" 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>?徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好江蘇中徽測(cè)控儀表供應(yīng)</p><div id="dmtqh7c" class="leftbox clearfix"><h1>徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好江蘇中徽測(cè)控儀表供應(yīng)</h1><div id="3tlcjs2" class="proBig"><div id="7gnzbnh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zik8z2a" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lpwdp2m" 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>徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好,流量計(jì)</p><p><span>***更新：</span>2021-01-30 01:09:27</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="3uax3jq" 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: </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] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="xgifh33" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="8c8gwvr" class="box"><p><p style="text-indent:25px">孔板流量計(jì)分類1、內(nèi)藏孔板這一類孔板是將孔板與測(cè)量管做成一體，一般用于小管徑（DN≤50mm），所以又稱小管徑孔板。特點(diǎn)：（1）、結(jié)構(gòu)緊湊，牢固耐用，工作可靠。（2）、可以測(cè)小流量，現(xiàn)場(chǎng)安裝方便。（3），徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好、要求配制一段直管段（前5D、后2D需精密加工）。使用條件：（1）、公稱通徑：15-50mm（2）、公稱壓力：≤6.3MPa（3）、精確度（不確定度）：2.5%2、限流孔板用于流體輸送過程的降壓、限流。利用節(jié)流件的壓力損失的特點(diǎn)，來達(dá)到降壓、限流的目的，徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好。特點(diǎn)：結(jié)構(gòu)簡(jiǎn)單、耐用、工作可靠。不需要測(cè)量差壓，徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好。電磁流量計(jì)所測(cè)得體積流量實(shí)際上不受流體密度、粘度、溫度、壓力和電導(dǎo)率變化的明顯影響；徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png"></div><p style="text-indent:25px">保證孔板流量計(jì)測(cè)量精度：1、對(duì)孔板流量計(jì)的溫度影響及其修正，流體的溫度變化引起密度變化，壓差與流量的關(guān)系發(fā)生變化，其次，溫度變化引起配管內(nèi)徑、孔板的變化，溫度變化的修正，用溫度計(jì)測(cè)量現(xiàn)場(chǎng)溫度，輸入二次計(jì)，計(jì)算溫度變化引起的誤差；2，蒸汽質(zhì)量流量的計(jì)算，孔板流量計(jì)測(cè)量蒸汽時(shí)，先由差壓信號(hào)求得流量值，再由蒸汽溫度，壓力值查表得出密度，來計(jì)算蒸汽流量質(zhì)量。3，孔板流量計(jì)進(jìn)行逐臺(tái)標(biāo)定。大家都知道，標(biāo)準(zhǔn)孔板只要設(shè)計(jì)制造參照相關(guān)標(biāo)準(zhǔn)，不需要實(shí)流標(biāo)定就可以直接使用。流出系數(shù)可以用軟件直接算出，但計(jì)算機(jī)的計(jì)算還是理想的，與現(xiàn)場(chǎng)環(huán)境有一定程度的差異，為了保證測(cè)量精度，建議對(duì)每個(gè)流量計(jì)進(jìn)行實(shí)際流標(biāo)定，將標(biāo)定的流出系數(shù)與計(jì)算結(jié)果進(jìn)行比較，算出出差值，進(jìn)行修正。4，可膨脹性校正。用孔板流量計(jì)測(cè)量蒸汽、氣體流量時(shí)，流體的膨脹性需要補(bǔ)正。具體的補(bǔ)正系數(shù)請(qǐng)參照光圈裝置設(shè)計(jì)手冊(cè)。5、雷諾數(shù)的修正，孔板流量計(jì)的流量系數(shù)與雷諾數(shù)之間有確定的關(guān)系，質(zhì)量流量變化時(shí)雷諾數(shù)成比例變化，引起流量系數(shù)變化。徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好電磁流量計(jì)的測(cè)量原理不依賴流量的特性，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)量無關(guān)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436288996836659/3226440.png"></div><p style="text-indent:25px">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±0.3%（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±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=0.7(與實(shí)際的β值無關(guān))的值的1/2</p><p style="text-indent:25px">使用的用途現(xiàn)在有非常多不錯(cuò)的產(chǎn)品都是可以進(jìn)行使用的，使用起來也很方便，這一點(diǎn)安全沒有什么問題，而像孔板流量計(jì)的話，這款設(shè)備使用起來效率還是很高的，因?yàn)榭梢詼y(cè)量出準(zhǔn)確的結(jié)果，所以使用的用途也很*，在蒸汽、氣體、液體等介質(zhì)的測(cè)量中都可以發(fā)揮出作用，因此電工、化工、冶金、石油等范圍都可以進(jìn)行使用。要如何選購(gòu)現(xiàn)在可以購(gòu)買的各種設(shè)備真的非常豐富，種類也很多，在這樣的情況下，需要注意的事情也是很多的，這一點(diǎn)可以信賴，而說到了孔板流量計(jì)的話，這一款設(shè)備使用起來也很方便，選購(gòu)的過程中，只要注意使用的領(lǐng)域是哪里，而且使用的管道類型，即可選擇到合適的測(cè)量計(jì)，其次是要關(guān)注一下使用的環(huán)境，選擇正確的型號(hào)，保證使用后的性能?，F(xiàn)在有非常多測(cè)量設(shè)備都會(huì)獲得普及使用，像孔板流量計(jì)的話，因?yàn)槭褂玫男阅懿诲e(cuò)，所以現(xiàn)在才會(huì)被普及頻繁的進(jìn)行使用，使用效果是很不錯(cuò)的，這一點(diǎn)值得信賴。因質(zhì)量流量計(jì)是依據(jù)科氏力原理工作的，為避免重力對(duì)計(jì)量精度的影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289195098254/5407997.png"></div><p style="text-indent:25px">孔板流量計(jì)是將規(guī)范孔板與多參量差壓變送器（或差壓變送、溫度變送器及壓力變送器）配套組成的高量程比差壓流量安裝，可丈量氣體、蒸汽、液體及自然氣的流量，應(yīng)用一體化孔板流量計(jì)一體化孔板流量計(jì)普遍應(yīng)用于石油、化工、冶金、電力、供熱、供水等范疇的過程控制和丈量?？装辶髁坑?jì)被普遍適用于煤炭、化工、交通、建筑、輕紡、食品、醫(yī)藥、農(nóng)業(yè)、環(huán)境維護(hù)及人民日常生活等國(guó)民經(jīng)濟(jì)各個(gè)范疇，是開展工農(nóng)業(yè)消費(fèi)，節(jié)約能源，改良產(chǎn)質(zhì)量量，進(jìn)步經(jīng)濟(jì)效益和管理程度的重要工具在國(guó)民經(jīng)濟(jì)中占有重要的位置。在過程自動(dòng)化儀表與安裝中，流量?jī)x表有兩大功用：作為過程自動(dòng)化控制系統(tǒng)的檢測(cè)儀表和丈量物料數(shù)量的總量表。校驗(yàn)檢測(cè)編輯該流量計(jì)應(yīng)用范疇比擬普遍，一切的單相流速都能夠丈量，一局部混相流也能夠運(yùn)用該產(chǎn)品。由于兩相流而不能精確計(jì)量，以至有可能發(fā)作水錘現(xiàn)象，損壞管件。若運(yùn)用環(huán)形孔板，冷凝水能夠從環(huán)形孔板的邊沿流走，小流通面是緊貼管內(nèi)壁的圓環(huán)，而規(guī)范孔板小流通面是處于管中心的同心圓。流體中的雜質(zhì)流速較低，普通是緊貼著管壁邊活動(dòng)，節(jié)流安裝新種類的不時(shí)呈現(xiàn)并取得推行應(yīng)用，與節(jié)流安裝相配套的差壓變送器及顯現(xiàn)儀表在性能和質(zhì)量方面開展疾速。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。徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好</p><p style="text-indent:25px">孔板流量計(jì)可以通過測(cè)量壓差來衡量流體流量的大小。徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好</p><p style="text-indent:25px">孔板流量計(jì)的一些應(yīng)用優(yōu)勢(shì)。精度高：孔板型流量計(jì)的精度為丈量值的±0.5%,貿(mào)易計(jì)量級(jí)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(jì)的反復(fù)性較好，為±0.1%.量程比寬：孔板型流量計(jì)的量程較其它類型的差壓流量計(jì)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(shí)輸出信號(hào)為線性，若低于8000也可丈量，但需對(duì)輸出信號(hào)依據(jù)曲線中止修正，流量計(jì)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(huì)磨損，因而能夠堅(jiān)持幾何尺寸長(zhǎng)期不變，因而能長(zhǎng)期穩(wěn)定工作而不需求標(biāo)定。流量計(jì)是純機(jī)械體，因而耐高溫、耐高壓、耐腐蝕及不怕振動(dòng)，可測(cè)的流體（液體、氣體、蒸汽）替代緊縮空氣流量計(jì)，丈量范圍寬（微小流量~大流量），適用的管徑DN15~二、孔板流量計(jì)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(jì)的兩端各有一個(gè)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(gè)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(yùn)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(jì)兩端各配有法蘭，當(dāng)銜接的管道無法蘭銜接時(shí)，可選用焊接的方式中止銜接。徐州長(zhǎng)頸噴嘴流量計(jì)哪家比較好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3069662.html</p></div></div></div></div></div><div id="wk78x49" class="page-right twoColRt"><div id="vo2gxjq" class="box01 margin10 clearfix"><h3><a 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