上海熱式氣體質(zhì)量流量計(jì)銷售價(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)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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"><meta name="keywords" content="上海熱式氣體質(zhì)量流量計(jì)銷售價(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" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta 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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>上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格,流量計(jì)</p><p><span>***更新：</span>2021-01-23 08:09:40</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="0hiyjkg" 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="zc8grs3" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="mokhiou" class="box"><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，上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格，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，上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格，因此很少采用，上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格，但徑距取壓適用于大管道的過熱蒸汽測(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。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)；上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289003828671/3963991.png"></div><p style="text-indent:25px">如果管道中有積水，那么我們應(yīng)該怎么處理呢？1、及時(shí)排放管道中的凝結(jié)水。安裝排水裝置是避免積水堵塞管道的主要措施，一方面要合理設(shè)計(jì)管道坡度及排水裝置的分布，定期維護(hù)檢查，避免大量水聚集堵管。凝結(jié)水的及時(shí)排出也降低了管道濕度，減緩凝結(jié)水和其它雜質(zhì)對(duì)管道的腐蝕，從而提高計(jì)量數(shù)據(jù)的準(zhǔn)確性。2、解決節(jié)流件前積水簡(jiǎn)單的方法是節(jié)流件的下部開疏液孔。將節(jié)流裝置安裝在垂直工藝管上，或改用圓缺孔板流量計(jì)或偏心孔板。其中，偏心孔板不確定度較小，優(yōu)于圓缺孔板。上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格固定式超聲波流量計(jì)要求長(zhǎng)時(shí)間接連運(yùn)轉(zhuǎn)，所以要運(yùn)用220V交流電源；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289174834595/5651638.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(lái)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。</p><p style="text-indent:25px">孔板流量計(jì)如何標(biāo)定▲孔板計(jì)算采用國(guó)際標(biāo)準(zhǔn)與加工▲孔板流量計(jì)應(yīng)用范圍廣，全部單相流皆可測(cè)量，部分混相流亦可應(yīng)用?！鴺?biāo)準(zhǔn)型節(jié)流裝置無(wú)須實(shí)流校準(zhǔn)，即可投用。▲一體型孔板流量計(jì)安裝更簡(jiǎn)單，無(wú)須引壓管，可直接接差壓變送器和壓力變送器。智能型孔板流量計(jì)特點(diǎn)▲采用進(jìn)口單晶硅智能差壓傳感器▲高精度，完善的自診斷功能▲智能孔板流量計(jì)智能孔板流量計(jì)其量程可自編程調(diào)整。▲智能孔板流量計(jì)可同時(shí)顯示累計(jì)流量、瞬時(shí)流量、壓力、溫度?！哂性诰€、動(dòng)態(tài)全補(bǔ)償功能外，智能孔板流量計(jì)還具有自診斷、自行設(shè)定量程。▲配有多種通訊接口▲穩(wěn)定性高▲量程范圍寬、大于10：1智能型孔板流量計(jì)技術(shù)指標(biāo)▲高精度：±0.075%▲高穩(wěn)定性：優(yōu)于0.1%FS/年▲高靜壓：40MPa▲連續(xù)工作5年不需調(diào)?！珊雎詼囟取㈧o壓影響孔板流量計(jì)的節(jié)流裝置結(jié)構(gòu)簡(jiǎn)單，且牢固、性能穩(wěn)定可靠，是工業(yè)中常用到的流量測(cè)量?jī)x表；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海熱式氣體質(zhì)量流量計(jì)銷售價(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?，要做好接地屏蔽，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)應(yīng)用領(lǐng)域,大口徑儀表較多應(yīng)用于給排水工程；四川液體渦輪流量計(jì)源頭直供廠家</p><p style="text-indent:25px">孔板流量計(jì)孔板計(jì)算采用國(guó)際標(biāo)準(zhǔn)與加工；上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格</p><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±（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=。上海熱式氣體質(zhì)量流量計(jì)銷售價(jià)格</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2974373.html</p></div></div></div></div></div><div id="huvw3ci" class="page-right twoColRt"><div id="qdzam33" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qy2njkq" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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