江西氣體渦輪流量計廠家哪家好江蘇中徽測控儀表供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="孔板流量計屬于差壓式流量計的一種。它具有結(jié)構(gòu)簡單，維修方便，性能穩(wěn)定等特點。現(xiàn)如今孔板流量計被適用于煤炭、化工、交通、建筑、輕紡、食品、醫(yī)藥、農(nóng)業(yè)，江西氣體渦輪流量計廠家哪家好，江西氣體渦輪流量計廠家哪家好，江西氣體渦輪流量計廠家哪家好、環(huán)"><meta name="keywords" content="江西氣體渦輪流量計廠家哪家好,流量計"><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 http-equiv="Cache-Control" content="no-transform" 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</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(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="ewusgsq" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="w8ecss0" class="box"><p><p style="text-indent:25px">孔板流量計屬于差壓式流量計的一種。它具有結(jié)構(gòu)簡單，維修方便，性能穩(wěn)定等特點?，F(xiàn)如今孔板流量計被適用于煤炭、化工、交通、建筑、輕紡、食品、醫(yī)藥、農(nóng)業(yè)，江西氣體渦輪流量計廠家哪家好，江西氣體渦輪流量計廠家哪家好，江西氣體渦輪流量計廠家哪家好、環(huán)境保護等各個領(lǐng)域。一、工作原理充滿管道的流體流經(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。其基本公式如下：c－流出系數(shù)無量綱d－工作條件下節(jié)流件的節(jié)流孔或喉部直徑D－工作條件下上游管道內(nèi)徑qm－質(zhì)量流量Kg/sqv－體積流量m3/s?－直徑比d/D無量綱流體的密度Kg/m3可膨脹性系數(shù)無量綱電磁流量計的常規(guī)直管段要求是**D后5D，在有彎管、閥門的情況分別有不同的要求。江西氣體渦輪流量計廠家哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西氣體渦輪流量計廠家哪家好,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289114609938/9762879.png"></div><p> 孔板流量計丈量優(yōu)點1、規(guī)范節(jié)流件是全用的，并得到了國際規(guī)范組織的認(rèn)可，無需實流校準(zhǔn)，即可投用，在流量傳感器中也是獨一的;2、構(gòu)造易于復(fù)制，簡單、結(jié)實、性能穩(wěn)定牢靠、價錢低廉;3、應(yīng)用范圍廣，包括全部單相流體(液、氣、蒸汽)、局部混相流，普通消費過程的管徑、工作狀態(tài)(溫度、壓力)皆能夠丈量;4、檢測件和差壓顯現(xiàn)儀表可分開不同廠家消費，便與專業(yè)化范圍消費?？装辶髁坑嬚闪咳毕?、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、有較長的直管段長度請求，普通難于滿足。特別對較大管徑，問題愈加突出;4、壓力損失大;5、孔板以內(nèi)孔銳角線來保證精度，因而傳感器對腐蝕、磨損、結(jié)垢、臟污敏感，長期運用精度難以保證，需每年拆下強檢一次;6、采用法蘭銜接，易產(chǎn)生跑、冒、滴、漏問題，增加了維護工作量。 </p> <p> <br /> </p> <p> <br /> 江西氣體渦輪流量計廠家哪家好電磁流量計應(yīng)用領(lǐng)域,大口徑儀表較多應(yīng)用于給排水工程；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西氣體渦輪流量計廠家哪家好,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289042998618/4460086.png"></div><p style="text-indent:25px">信號傳輸電纜長度的題目傳感器(即電極)與轉(zhuǎn)換器之間的連接電纜愈短愈好。但有些現(xiàn)場受安裝環(huán)境位置的限制，轉(zhuǎn)換器與傳感器的間隔較遠，這時要考慮連接電纜的最大長度題目。傳感器與轉(zhuǎn)換器之間的連接電纜的最大長度又由電纜的分布電容和被測流體的電導(dǎo)率決定。實際使用中，當(dāng)被測流體的電導(dǎo)率是在一定的范圍之間，因此就決定了電極與轉(zhuǎn)換器之間電纜的最大長度。當(dāng)電纜長度超過最大長度時，由電纜分布電容引起的負(fù)載效應(yīng)就成了題目。為防止這種情況發(fā)生，使用雙芯兩層屏蔽電纜，由轉(zhuǎn)換器提供低阻抗電壓源使內(nèi)側(cè)屏蔽與芯線得到相同的電壓，以形成屏蔽，即使芯線與屏蔽之間有分布電容存在，但芯線與屏蔽是同電位，則兩者之間就無電暢通流暢過，也無電纜的負(fù)載效應(yīng)存在，因此可延長信號電纜最大長度。另外，還可用特殊信號傳輸電纜延長轉(zhuǎn)換器與傳感器之間的最大長度。</p><p style="text-indent:25px"> 智能電磁流量計傳感器接地很重要，尤其在管道存在雜散電流干擾時，只有良好的接地保護，才能使智能電磁流量計準(zhǔn)確地測量。也許在沒有這種干擾的環(huán)境里，不接地并不影響流量計準(zhǔn)確測量，但是一旦環(huán)境改變，即造成流量計不能準(zhǔn)確穩(wěn)定地工作，所以我們在安裝時比較好做好傳感器接地保護，給智能電磁流量計創(chuàng)造一個良好的工作環(huán)境。接地環(huán)分為普通型和保護型，一般是使用普通型，若被測介質(zhì)是磨損性的，宜使用帶頸的保護接地環(huán)。以保護進口端的襯里，延長使用壽命。若口徑在200mm以下的智能電磁流量計，選用聚四氟乙烯襯里時，應(yīng)選用接地環(huán)，以保證在管道連接安裝時保護襯里不受損壞，接地環(huán)通常是不銹鋼或Hc合金的。流量計可以水平和垂直安裝，但是應(yīng)該確保避免沉積物和氣泡對測量電極的影響，電極軸向保持水平為好。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西氣體渦輪流量計廠家哪家好,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289067451760/3371916.png"></div><p style="text-indent:25px">孔板流量計是對標(biāo)準(zhǔn)孔板的改進，是集標(biāo)準(zhǔn)孔板和流動調(diào)整器于一體的新型結(jié)構(gòu)節(jié)省裝置?？装辶髁坑嫷膽?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。食物、煤炭、交通、農(nóng)業(yè)、修建、輕紡、醫(yī)藥、、化工、環(huán)境保護及人民日常生活等國民經(jīng)濟各個范疇。是開展工農(nóng)業(yè)生產(chǎn)，節(jié)約能源，進步經(jīng)濟效益和管理水平的重要東西。在國民經(jīng)濟中具有較大作用?？装辶髁坑嫷膬?yōu)缺陷剖析孔板流量計孔板流量計的長處：孔板流量計無機械慣性，可丈量正反向的流量?？烧闪颗K污介質(zhì)、腐蝕性介質(zhì)以及懸濁性液固兩相流的流量?？烧闪扛邷馗邏航橘|(zhì)的流量，如高溫?zé)煔?，高溫高壓蒸汽。孔板流量計輸出信號只與管道均勻流速平方成正比，丈量范圍較寬。傳感器結(jié)構(gòu)簡單，無可動部件，是流量計中運轉(zhuǎn)能耗較低的外表之一?？装辶髁坑嬍堑牧髁客獗?，只需要經(jīng)過干標(biāo)定就可以用來丈量各種介質(zhì)的流量，孔板流量計的優(yōu)缺陷剖析孔板流量計孔板流量計的缺陷：精度較高，造價較高，配套組件較多。比較其他流量計壓力丟失較大點。比較其他流量計等裝置要求較高。智能電磁流量計是一種流量儀表，因為它是根據(jù)傳統(tǒng)的物理電磁感應(yīng)原理制成的，擁有著非常獨特的特點；常州氣體渦輪流量計生產(chǎn)廠家</p><p style="text-indent:25px">孔板流量計應(yīng)用范圍廣，全部單相流皆可測量，部分混相流亦可應(yīng)用。江西氣體渦輪流量計廠家哪家好</p><p> 電磁流量計的安裝與調(diào)試比其它流量計復(fù)雜，且要求更嚴(yán)格。變送器和轉(zhuǎn)換器必須配套使用，兩者之間不能用兩種不同型號的儀表配用。在安裝變送器時，從安裝地點的選擇到具體的安裝調(diào)試，必須嚴(yán)格按照產(chǎn)品說明書要求進行。安裝地點不能有振動，不能有強磁場。在安裝時必須使變送器和管道有良好的接觸及良好的接地。變送器的電位與被測流體等電位。在使用時，必須排盡測量管中存留的氣體，否則會造成較大的測量誤差。電磁流量計用來測量帶有污垢的粘性液體時，粘性物或沉淀物附著在測量管內(nèi)壁或電極上，使變送器輸出電勢變化，帶來測量誤差，電極上污垢物達到一定厚度，可能導(dǎo)致儀表無法測量。 </p> <p> <br /> </p> <p> <br /> 江西氣體渦輪流量計廠家哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3054383.html</p></div></div></div></div></div><div id="ssqekye" class="page-right twoColRt"><div id="eusqouk" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gmaqymk" 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" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="csomkqo" 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