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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>?四川孔板流量計廠家誠信服務(wù) 江蘇中徽測控儀表供應(yīng)</p><div id="32zoaco" class="leftbox clearfix"><h1>四川孔板流量計廠家誠信服務(wù) 江蘇中徽測控儀表供應(yīng)</h1><div id="s8hewz8" class="proBig"><div id="yhgxegs" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312837414560547/9988671.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ml2lsok" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312837414560547/9988671.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="smqme8y" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>四川孔板流量計廠家,流量計</p><p><span>***更新：</span>2020-08-27 12:14:35</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="k2eac3p" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測控儀表有限公司</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: </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</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ujvszrh" class="page-proshow02"><p class="title">詳細說明</p><div id="zjgi3eg" class="box"><p><p> 孔板流量計優(yōu)點： </p> <p> 標準節(jié)流件是全世界通用的，并得到了國際標準組織的認可，無需實流校準，即可投用，在流量計中亦是的。結(jié)構(gòu)易于復(fù)制，簡單、牢固、性能穩(wěn)定可靠、價格低廉；應(yīng)用范圍廣，包括全部單相流體（液、氣、蒸汽）、部分混相流，一般生產(chǎn)過程的管徑、工作狀態(tài)(溫度、壓力)皆有產(chǎn)品。檢測件和差壓顯示儀表可分開不同廠家生產(chǎn)，便與專業(yè)化規(guī)模生產(chǎn)； </p> <p> 缺點： </p> <p> 測量的重復(fù)性、精確度在流量計中屬于中等水平，由于眾多因素的影響錯綜復(fù)雜，精確度難于提高。范圍度窄，四川孔板流量計廠家，由于流量系數(shù)與雷諾數(shù)有關(guān),一般范圍度* 3∶1 ～ 4∶1。有較長的直管段長度要求，一般難于滿足，四川孔板流量計廠家。尤其對較大管徑，問題更加突出；壓力損失大；通常為維持一臺孔板流量計正常運行，四川孔板流量計廠家，水泵需要附加動力克服孔板的壓力損失。該附加耗電量可直接由質(zhì)量流量計的測量管無論是向上還是向下安裝，都要盡量使測量管與地平面保持垂直或水平。四川孔板流量計廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川孔板流量計廠家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837414560547/9988671.png"></div><p> 超聲波流量計也是比較常見的流量計，它的安裝在所有流量計的安裝中是簡單便捷的，只要選擇一個合適的測量點，把測量點處的管道參數(shù)輸入到流量計中，然后把探頭固定在管道上即可。 <span style="font-size:12px;"> </span> </p> <p> 安裝要點 </p> <p> 1、選擇充滿流體的材質(zhì)均勻質(zhì)密、易于超聲波傳輸?shù)墓芏?，如垂直管段或水平管段?</p> <p> 2、安裝距離應(yīng)選擇上游大于10倍直管徑、下游大于5倍直管徑以內(nèi)無任何閥門、彎頭、變徑等均勻的直管段，安裝點應(yīng)充分遠離閥門、泵、高壓電和變頻器等干擾源。 </p> <p> 3、避免安裝在管道系統(tǒng)的比較高點或帶有自由出口的豎直管道上。 </p> <p> 4、對于開口或半滿管的管道，流量計應(yīng)安裝在U型管段處。 </p> <p> 渦街流量計山東孔板流量計哪家比較好電磁流量計內(nèi)的測量電極處于一個直流或交流電場內(nèi)；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川孔板流量計廠家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837099316406/1457199.png"></div><p> 浮子流量計 </p> <p> 浮子流量計,又稱轉(zhuǎn)子流量計,是變面積式流量計的一種,在一根由下向上擴大的垂直錐管中,圓形橫截面的浮子的重力是由液體動力承受的,從而使浮子可以在錐管內(nèi)自由地上升和下降。 </p> <p> 浮子流量計是*次于差壓式流量計應(yīng)用范圍寬廣的一類流量計,特別在小、微流量方面有舉足輕重的作用。 </p> <p> <span style="font-size:12px;">80 年代中期,日本、西歐、美國的銷售金額占流量儀表的 15%~20%。我國產(chǎn)量 1990 年估計在 12~14 萬臺,其中 95%以上為玻璃錐管浮子流量計。</span> </p> <p> 特點: </p> <p> (1)玻璃錐管浮子流量計結(jié)構(gòu)簡單,使用方便,缺點是耐壓力低,有玻璃管易碎的較大風(fēng)險; </p> <p> (2)適用于小管徑和低流速; </p> <p> (3)壓力損失較低。 </p><p> 流體流經(jīng)管道內(nèi)的節(jié)流裝置，在節(jié)流件附近造成局部收縮，流速增加，在其上、下游兩側(cè)產(chǎn)生靜壓力差。在已知有關(guān)參數(shù)的條件下，根據(jù)流動連續(xù)性原理和伯努利方程可以推導(dǎo)出差壓與流量之間的關(guān)系而求得流量。 </p> <p> 孔板流量計的節(jié)流裝置結(jié)構(gòu)簡單，且牢固、性能穩(wěn)定可靠，使用期限長，價格較低，是工業(yè)中常用到的流量測量儀表，整個加工過程采用國際標準，并經(jīng)過嚴格的校驗檢測，用戶在購買后可放心使用。該流量計應(yīng)用領(lǐng)域比較，所有的單相流速都可以測量，一部分混相流也可以使用該產(chǎn)品 </p> <p> 孔板流量計可測量管道中各種流體的流量，可測量的介質(zhì)有液體、氣體、蒸汽，被應(yīng)用于石油、化工、冶金、輕工、煤礦等工業(yè)部門。測量原理：充滿管道的流體，當它們流經(jīng)管道內(nèi)的節(jié)流裝置時，流束將在節(jié)流裝置的節(jié)流件處形成局部收縮 </p> <p> 孔板流量計前后產(chǎn)生一個靜壓力差,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.差壓信號傳送給差壓變送器,轉(zhuǎn)換成4-20ma.DC模擬信號輸出,遠轉(zhuǎn)給流量積算儀,實現(xiàn)流體流量的計量.質(zhì)量型流量計,利用智能型差壓變送器,對工況溫/壓進行自動補償后,實現(xiàn)對流體質(zhì)量流量的測量測量液體流量時引壓管水平段應(yīng)在同一水平面內(nèi)；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川孔板流量計廠家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312838103671875/4779906.png"></div><p> 絕大部分轉(zhuǎn)子流量計必須垂直安裝在無振動的管道上，不應(yīng)有明顯的傾斜，流體自下而上流過儀表。轉(zhuǎn)子流量計中心線與鉛垂線間夾角一般不超過5度，高精度()儀表θ≤20°。如果θ=12°則會產(chǎn)生1%附加誤差。儀表無嚴格上游直管段長度要求，但也有制造廠要求(2-5)D長度的，實際上必要性不大。2、用于污臟流體的安裝應(yīng)在儀表上游裝過濾器。帶有磁性耦合的金屬管轉(zhuǎn)子流量計用于可能含磁鐵性雜質(zhì)流體時，應(yīng)在儀表前裝磁過濾器。要保持浮子和錐管的清潔，特別是小口徑儀表，浮子潔凈程度明顯影響測量值。3、轉(zhuǎn)子流量計擴大范圍度的安裝如果測量要求的流量范圍度寬，范圍度超過10時，可以在一臺儀表內(nèi)放兩只不同形狀和重量的浮子，小流量時取輕浮子讀數(shù)，浮子到頂部后取重浮子讀數(shù)，范圍度可擴大到50-100。流量計有堰槽式流量計，它是通過測量液位來反映流量。鎮(zhèn)江插入式巴類流量計廠家哪家好</p><p style="text-indent:25px">流量計有渦輪流量計、渦街流量計、電磁流量計、多普勒超聲波流量計、熱線測速流量計；四川孔板流量計廠家</p><p> 主要安裝要求是對于直管段的要求及管道振動要求，渦街流量傳感器的上游側(cè)和下游側(cè)應(yīng)有較長的直管段;管道不能有振動，如有振動，則需對流量計兩側(cè)加固定裝置。 </p> <p> 對于渦街流量計來說，測量氣體流量時，若被測氣體含有少量的液體，流量計應(yīng)安裝在管線的較高處。測量液體時，若被測液體中含有少量的氣體，流量計應(yīng)安裝在管線的較低處。測壓孔和測溫孔：需要測壓時,須將測壓孔設(shè)置在流量計下游2~7D的地方。需要測溫時,將溫度傳感器設(shè)置在離測壓點下游的1~2D之間處。 </p> <p> 管道支撐：盡量將流量計安裝在振動加速度小于20m/s2的地方。當管道振動過強時,應(yīng)對管道安裝加固支撐。封墊片：切不可將密封墊片突出到管道中,否則將導(dǎo)致無法接受的誤差。四川孔板流量計廠家</p><p 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