上海電磁流量計(jì)哪家比較便宜值得信賴江蘇中徽測(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="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)安裝在管線的較高處。測(cè)"><meta name="keywords" content="上海電磁流量計(jì)哪家比較便宜,流量計(jì)"><link rel="canonical" href="http://m.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 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style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海電磁流量計(jì)哪家比較便宜,流量計(jì)</p><p><span>***更新：</span>2021-01-15 03:07:59</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="swtqfmj" 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="aubtvxe" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="32cbdfm" class="box"><p><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，上海電磁流量計(jì)哪家比較便宜。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，上海電磁流量計(jì)哪家比較便宜。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，上海電磁流量計(jì)哪家比較便宜。質(zhì)量流量傳感器安裝應(yīng)使傳感器流向標(biāo)識(shí)與流體流向一致。并使箭頭指向與變送器內(nèi)部組態(tài)的流量方向一致。上海電磁流量計(jì)哪家比較便宜</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電磁流量計(jì)哪家比較便宜,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289029668701/3265337.png"></div><p style="text-indent:25px">長(zhǎng)期以來(lái),孔板流量計(jì)由于其技術(shù)成熟、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,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),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。上海電磁流量計(jì)哪家比較便宜渦輪流量計(jì)在以下一些測(cè)量對(duì)象獲得廣泛應(yīng)用:石油、有機(jī)液體、無(wú)機(jī)液、液化氣、天然氣和低溫流；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電磁流量計(jì)哪家比較便宜,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png"></div><p> 孔板流量計(jì)安裝要求1、孔板在安裝前應(yīng)檢查節(jié)流裝置編號(hào)和尺寸是否符合管道安裝位置的要求。2、新裝管路系統(tǒng)，必須在管道沖洗和掃線后再進(jìn)行孔板的安裝。3、注意孔板安裝方向“+”號(hào)應(yīng)該向著流束。4、孔板中心應(yīng)該和管道中心線相重合，同心度誤差不得超過(guò)(1/β-1)的數(shù)值。5、孔板在管道中安裝時(shí)應(yīng)保證其端面與管道軸線垂直、垂直度誤差不得超過(guò)±1°。6、夾緊孔板用的密封墊片(包括環(huán)室與法蘭、環(huán)室與孔板間)，在夾緊后，不得突入管道內(nèi)壁。7、孔板安裝處必須嚴(yán)密，不允許有泄漏現(xiàn)象存在。因此，安裝工作必須在管道試壓前進(jìn)行。8、導(dǎo)壓管應(yīng)垂直或傾斜敷設(shè)，其傾度不得小于1:12。粘度較高的流體，其傾斜度還應(yīng)增大。當(dāng)差壓訊號(hào)傳送距離大于3米時(shí)，導(dǎo)壓管應(yīng)分段傾斜，并在各高點(diǎn)和低點(diǎn)分別裝設(shè)集氣器和沉降器。9、為了避免差壓訊號(hào)傳送失真，正負(fù)導(dǎo)壓管應(yīng)盡量靠近敷設(shè)，嚴(yán)寒地區(qū)還應(yīng)采取防凍措施?？刹捎秒姛峄蛘魵獗兀乐贡粶y(cè)介質(zhì)過(guò)熱汽化和在導(dǎo)壓管中產(chǎn)生氣體造成假差壓。10、孔板安裝在垂直主管道上時(shí)，取壓口位置，可在取壓裝置的平面上任意選擇?？装灏惭b在水平或傾斜的主管道內(nèi)，取壓口位置如圖四所示。11、導(dǎo)壓管按被測(cè)介質(zhì)的性質(zhì)而選擇耐壓、耐腐蝕的材料制造。 </p><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。定式超聲波流量計(jì)，通常都有4-20mA信號(hào)輸出等功用，供遠(yuǎn)傳顯現(xiàn)運(yùn)用，但其內(nèi)部只能存貯一條管道的參數(shù)；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電磁流量計(jì)哪家比較便宜,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289204346373/8482943.png"></div><p> 售價(jià)較高同種規(guī)格的V錐流量計(jì)的價(jià)格要高于孔板流量計(jì),但低于可更換孔板流量計(jì)。由于V錐的用料多、加工工藝復(fù)雜、標(biāo)定費(fèi)用高,使得其售價(jià)較高。但是在考慮流量計(jì)時(shí),初次購(gòu)買價(jià)及安裝費(fèi)用、儀表的可靠性、長(zhǎng)期維護(hù)費(fèi)用、長(zhǎng)久壓力損失等綜合因素的總評(píng)才是選取流量計(jì)的依據(jù),只有綜合考慮并權(quán)衡了以上這些重要因素,才能做到合理選型。如前所述,V錐流量計(jì)除了在初次購(gòu)買費(fèi)用上高于孔板流量計(jì)外,其他的費(fèi)用應(yīng)該與孔板流量計(jì)持平或低于孔板流量計(jì)。尤其是在補(bǔ)償壓力損失所需要的耗能方面,V錐流量計(jì)遠(yuǎn)遠(yuǎn)優(yōu)于孔板流量計(jì)。所以從長(zhǎng)遠(yuǎn)考慮,使用V錐流量計(jì)的綜合費(fèi)用要低于孔板流量計(jì)。使用可更換孔板的目的就是為了提高孔板的量程比。但是其價(jià)格昂貴。如果給V錐流量計(jì)配兩臺(tái)不同量程的變送器（壓力變送器、差壓變送器）,那么其量程比的擴(kuò)展要遠(yuǎn)大于可更換孔板流量計(jì),而其價(jià)格要遠(yuǎn)低于可更換孔板。3差壓較低由于V錐流量計(jì)的流出系數(shù)要大于孔板流量計(jì)的流出系數(shù),使得相同流量時(shí)孔板的差壓值要高于V錐的差壓值?？装辶髁坑?jì)的變送器一般都是用中差壓表,V錐流量計(jì)一般用低差壓表。 </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。山西電磁流量計(jì)</p><p style="text-indent:25px">孔板流量計(jì)又稱為差壓式流量計(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；上海電磁流量計(jì)哪家比較便宜</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)槿肟诙耍世刃蔚囊粋?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，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，測(cè)量壓差就會(huì)變小，流量顯示就會(huì)偏低。解決辦法：對(duì)孔板進(jìn)行重新加工。上海電磁流量計(jì)哪家比較便宜</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2850783.html</p></div></div></div></div></div><div id="cbyah8s" 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