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class="twoCol"><div id="kryfhw9" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產品供應</a>?<a href="http://m.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://m.cdcfah.com/cp/second-yiqiyibiao_wybez/">物位儀表</a>?<a href="http://m.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?宿遷插入式巴類流量計廠家批發(fā) 服務至上江蘇中徽測控儀表供應</p><div id="bv7a3h8" class="leftbox clearfix"><h1>宿遷插入式巴類流量計廠家批發(fā) 服務至上江蘇中徽測控儀表供應</h1><div id="rqxpmlk" class="proBig"><div id="ueb7qbv" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289067451760/3371916.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="m7ns2ur" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289067451760/3371916.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="afc97qi" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>宿遷插入式巴類流量計廠家批發(fā),流量計</p><p><span>***更新：</span>2020-12-26 08:10:15</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="aph4zla" 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="vk2pevc" class="page-proshow02"><p class="title">詳細說明</p><div id="vumw2tq" class="box"><p><p style="text-indent:25px">V錐流量計特點V錐流量計是從2000年左右才在中國國內出現的流量計。其工作原理和孔板流量計相同。介質通過V錐時,由于阻流件V錐的存在,使得流體的流過面積發(fā)生變化，宿遷插入式巴類流量計廠家批發(fā),流速發(fā)生變化,根據伯努利方程,流速變化引起了壓力的變化,該壓力的變化與流速之間有一定的關系。通過測量該壓力差達到測量流量的目的。雖然與孔板原理一樣,但是本質的區(qū)別在于孔板為中心收縮型節(jié)流裝置,而V錐為邊壁收縮型節(jié)流裝置。眾所周知,測量范圍窄是制約孔板使用的主要原因。測量范圍窄的主要原因是:孔板的流量系數隨雷諾數的變化而變化較大，宿遷插入式巴類流量計廠家批發(fā),孔板的突然節(jié)流導致孔板后發(fā)生比較大的漩渦，宿遷插入式巴類流量計廠家批發(fā),該漩渦的存在直接導致信號噪聲比較大,從而限制了它的測量范圍。而V錐流量計克服了以上缺點。流量計傳感器上游也應該有一定的直管段，一般在5D~10D。宿遷插入式巴類流量計廠家批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="宿遷插入式巴類流量計廠家批發(fā),流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289067451760/3371916.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)范組織的認可，無需實流校準，即可投用，在流量傳感器中也是獨一的;2、構造易于復制，簡單、結實、性能穩(wěn)定牢靠、價錢低廉;3、應用范圍廣，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、檢測件和差壓顯現儀表可分開不同廠家消費，便與專業(yè)化范圍消費。孔板流量計丈量缺陷1、丈量的反復性、準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，準確度難于進步;2、范圍度窄，由于流量系數與雷諾數有關,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、孔板以內孔銳角線來保證精度，因而傳感器對腐蝕、磨損、結垢、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，易產生跑、冒、滴、漏問題，增加了維護工作量。 </p> <p> <br /> </p> <p> <br /> 宿遷插入式巴類流量計廠家批發(fā)智能電磁流量計是一種流量儀表，因為它是根據傳統(tǒng)的物理電磁感應原理制成的，擁有著非常獨特的特點；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="宿遷插入式巴類流量計廠家批發(fā),流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289204346373/8482943.png"></div><p> 變送器零點漂移：如果使用時間較長，變送器的零點可能會發(fā)生漂移，如果是負漂移，顯示壓差將會減小，顯示的流量也會減小。解決辦法：對變送器的零點進行校正。上下游直管段長度不夠，上下游直管段如果不夠長，氣體將得不到充分發(fā)展，會使計量結果造成較大誤差，如果上游在規(guī)定直管段內存在多個彎頭，將使計量結果偏低。解決辦法：改造蒸汽管道，是上下游直管段長度達到規(guī)定要求。在節(jié)流裝置前加整流器。、差壓變送器的三閥組漏氣，如果三閥組中的高壓閥貨平衡閥漏氣，將會導致測量差壓值減小，測量結果就會偏低。解決辦法：如果三閥組中的高壓閥門漏氣，將該閥門進行緊固，必要時進行更換，如果三閥組中的平衡閥內漏，將該閥門進行緊固，必要時進行更換。 </p> <p> <br /> </p> <p> <br /> </p><p> 孔板流量計使流速增加，靜壓力低，于是在節(jié)流件前后便產生了壓力降，即壓差，介質流動的流量越大，在節(jié)流件前后產生的壓差就越大，所以孔板流量計可以通過測量壓差來衡量流體流量的大小。這種測量方法是以能量守衡定律和流動連續(xù)性定律為基準的?？装辶髁坑嬁蓽y量管道中各種流體的流量，可測量的介質有液體、氣體、蒸汽，被廣泛應用于石油、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，當它們流經管道內的節(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> <br /> </p> <p> <br /> 孔板在安裝前應檢查節(jié)流裝置編號和尺寸是否符合管道安裝位置的要求。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="宿遷插入式巴類流量計廠家批發(fā),流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289060000603/4529138.png"></div><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確測量，但是一旦環(huán)境改變，即造成流量計不能準確穩(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。孔板流量計又稱為差壓式流量計,廣泛應用于氣體、蒸汽和液體的流量測量。宿遷插入式巴類流量計廠家批發(fā)</p><p style="text-indent:25px">電磁流量計是通過測量導電液體的速度確定工作狀態(tài)下的體積流量。宿遷插入式巴類流量計廠家批發(fā)</p><p> 電磁流量計的應用有一定局限性，它只能測量導電介質的液體流量，不能測量非導電介質的流量，例如氣體和水處理較好的供熱用水。另外在高溫條件下其襯里需考慮。 </p> <p> 電磁流量計是通過測量導電液體的速度確定工作狀態(tài)下的體積流量。按照計量要求，對于液態(tài)介質，應測量質量流量，測量介質流量應涉及到流體的密度，不同流體介質具有不同的密度，而且隨溫度變化。如果電磁流量計轉換器不考慮流體密度，*給出常溫狀態(tài)下的體積流量是不合適的。宿遷插入式巴類流量計廠家批發(fā)</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2571322.html</p></div></div></div></div></div><div id="rbiy782" class="page-right twoColRt"><div id="nheonjl" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="akmgdkh" 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