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href="http://www.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?淮安熱式氣體質(zhì)量流量計找哪家誠信為本江蘇中徽測控儀表供應(yīng)</p><div id="u2oc7gn" class="leftbox clearfix"><h1>淮安熱式氣體質(zhì)量流量計找哪家誠信為本江蘇中徽測控儀表供應(yīng)</h1><div id="g773bkl" class="proBig"><div id="i7ir37f" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289158887356/6747137.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hsz3kzg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289158887356/6747137.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="iqi879r" 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>淮安熱式氣體質(zhì)量流量計找哪家,流量計</p><p><span>***更新：</span>2021-01-13 06:11:31</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="dbolnu2" 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(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</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="mk7z7ls" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="cvpl8vm" 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(nèi)出現(xiàn)的流量計。其工作原理和孔板流量計相同。介質(zhì)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,流速發(fā)生變化,根據(jù)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(guān)系。通過測量該壓力差達(dá)到測量流量的目的。雖然與孔板原理一樣,但是本質(zhì)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，淮安熱式氣體質(zhì)量流量計找哪家。測量范圍窄的主要原因是:孔板的流量系數(shù)隨雷諾數(shù)的變化而變化較大,孔板的突然節(jié)流導(dǎo)致孔板后發(fā)生比較大的漩渦,該漩渦的存在直接導(dǎo)致信號噪聲比較大,從而限制了它的測量范圍，淮安熱式氣體質(zhì)量流量計找哪家。而V錐流量計克服了以上缺點，淮安熱式氣體質(zhì)量流量計找哪家。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。淮安熱式氣體質(zhì)量流量計找哪家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安熱式氣體質(zhì)量流量計找哪家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289158887356/6747137.png"></div><p style="text-indent:25px">流動本身的脈動，如擬裝儀表位置的上游有往復(fù)泵或調(diào)節(jié)閥，或下游有大負(fù)荷變化等，應(yīng)改換測量位置或在管道系統(tǒng)予以補救改進(jìn)，如加裝緩沖罐;若是儀表自身的振蕩，如測量時氣體壓力過低，儀表上游閥門未全開，調(diào)節(jié)閥未裝在儀表下游等原因，應(yīng)針對性改進(jìn)克服，或改選用有阻尼裝置的儀表。5、轉(zhuǎn)子流量計要排盡液體用儀表內(nèi)氣體進(jìn)出口不在直線的角型金屬轉(zhuǎn)子流量計，用于液體時注意外傳浮子位移的引申套管內(nèi)是否殘留空氣，必須排盡;若液體含有微小氣泡流動時極易積聚在套管內(nèi)，更應(yīng)定時排氣。這點對小口徑儀表更為重要，否則影響流量示值明顯。6、轉(zhuǎn)子流量計流量值應(yīng)作必要換算若非按使用密度、粘度等介質(zhì)參數(shù)向轉(zhuǎn)子流量計生產(chǎn)廠家專門訂制的儀表，液體用儀表通常以水標(biāo)定流量，氣體儀表用空氣標(biāo)定，定值在工程標(biāo)準(zhǔn)狀態(tài)。使用條件的流體密度、氣體壓力溫度與標(biāo)定不一致時，要做必要換算。換算公式和方法轉(zhuǎn)子流量計的制造廠使用說明書中都有詳述。淮安熱式氣體質(zhì)量流量計找哪家孔板流量計的節(jié)流裝置結(jié)構(gòu)簡單，且牢固、性能穩(wěn)定可靠，是工業(yè)中常用到的流量測量儀表；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安熱式氣體質(zhì)量流量計找哪家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289029668701/3265337.png"></div><p> 長期以來,孔板流量計由于其技術(shù)成熟、標(biāo)準(zhǔn)化程度高、結(jié)構(gòu)簡單、維護(hù)方便等特點而被地應(yīng)用。在海洋石油工程中也常常會用到孔板流量計。以采油平臺的測試分離器氣體出口測量為例,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,決定了該場合應(yīng)用孔板流量計為合適。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的低量程比的缺點而被地應(yīng)用。但是可更換的孔板價格昂貴,一般至少為同管徑孔板流量計價格的5倍以上。那么有沒有更好的產(chǎn)品來代替它,我們認(rèn)為V錐流量計就是代替它的優(yōu)先產(chǎn)品。 </p> <p> <br /> </p> <p> <br /> </p><p style="text-indent:25px">需要標(biāo)定孔板是通過保證幾何尺寸就可以保證其測量精度的流量計。而V錐屬于新型的流量計,雖然眾多的廠家及科研人員做了大量的實驗,但迄今為止V錐流量計可依據(jù)的國家標(biāo)準(zhǔn)有限,而且由于機(jī)密性和**的限制,現(xiàn)已公布的有關(guān)V錐流量計結(jié)構(gòu)設(shè)計的可利用的文獻(xiàn)較為缺乏。各個生產(chǎn)廠商依據(jù)企標(biāo)來生產(chǎn),可以說產(chǎn)品魚龍混雜,并不是每個廠商的產(chǎn)品都可靠。由于試驗數(shù)據(jù)不充分,使得每臺V錐流量計出廠時都必須經(jīng)過嚴(yán)格的標(biāo)定。從而也增加其費用。精度高由于V錐結(jié)構(gòu)無可動部件,使得V錐具有很好的重復(fù)性,一般小于0.1%。由于量程比寬,即它的線性度好,從而使其精度較高。根據(jù)GB17167-2006《用能單位能源計量器具配備和管理通則》規(guī)定,用于能源計量的流量計準(zhǔn)確度等級要求為:煤氣和天然氣為2.0級。所以在測試分離器出口的氣體測量中,在10∶1的量程范圍內(nèi),V錐加上差壓變送器及二次表的總體誤差不會低于1.5級,完全能滿足計量要求。長期性能好由于錐體的輪廓形狀限制了介質(zhì)的流動,流體沿著錐體形成了邊界層,這意味著錐體的邊緣不容易受不清潔的流體磨損,從而使開孔比β保持不變,使得流量計可以在很長時間內(nèi)保持精度而不必校驗。質(zhì)量流量傳感器安裝應(yīng)使傳感器流向標(biāo)識與流體流向一致。并使箭頭指向與變送器內(nèi)部組態(tài)的流量方向一致。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安熱式氣體質(zhì)量流量計找哪家,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(hù)，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(hù)，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(hù)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(hù)接地環(huán)。以保護(hù)進(jìn)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(hù)襯里不受損壞，接地環(huán)通常是不銹鋼或Hc合金的?？装辶髁坑嫲惭b時應(yīng)配有一段測量管,至少保持**DN、后5DN的等徑直管段，以提高測量精度。湖北熱式氣體質(zhì)量流量計</p><p style="text-indent:25px">質(zhì)量流量計由于流體的容積受溫度、壓力等參數(shù)的影響，用容積流量表示流量大小時需給出介質(zhì)的參數(shù)。淮安熱式氣體質(zhì)量流量計找哪家</p><p style="text-indent:25px">儀器儀表行業(yè)本身是一個加入，產(chǎn)出周期較長的行業(yè)，所以作為業(yè)內(nèi)廠家，一方面要尋找中、短期市場熱點，另一方面也要在產(chǎn)品、技術(shù)研發(fā)方面有長遠(yuǎn)的規(guī)劃;隨著互聯(lián)網(wǎng)的逐步發(fā)展，為雷達(dá)料位計，雷達(dá)液位計，物位計，水位計等產(chǎn)品的傳播提供了一個飛速的平臺。讓儀器儀表行業(yè)從傳統(tǒng)的銷售模式到以互聯(lián)網(wǎng)電子商務(wù)為主的營銷方式的轉(zhuǎn)變，促進(jìn)了儀器儀表行業(yè)與互聯(lián)網(wǎng)的結(jié)合，推動產(chǎn)業(yè)創(chuàng)新發(fā)展。在國民經(jīng)濟(jì)運行中，主營產(chǎn)品：智能電磁流量計、插入式渦街流量計、智能超聲波流量計、威力巴流量計、平衡流量計、德爾塔巴流量計、超聲波流量計、雷達(dá)物位計、超聲波液位計、磁翻板液位計、電磁流量計、渦街流量計、旋進(jìn)漩渦流量計、渦輪流量計、壓力差壓變送器、校驗設(shè)備等。等設(shè)備是提高勞動生產(chǎn)率的倍增器，對國民經(jīng)濟(jì)有著巨大的作用和影響力。美國商業(yè)部地區(qū)技術(shù)和標(biāo)準(zhǔn)研究院（NIST）提出的報告稱：美國90年代儀器儀表工業(yè)產(chǎn)值只占工業(yè)總產(chǎn)值的4%，但它對國民經(jīng)濟(jì)（GNP）的影響面卻達(dá)到66%。從銷售廣義角度來說，儀器儀表也可具有自動操控、報警、信號傳遞和數(shù)據(jù)處理等功能，例如用于工業(yè)生產(chǎn)過程自動操控中的氣動調(diào)節(jié)儀表，和電動調(diào)節(jié)儀表，以及集散型儀表操控系統(tǒng)也皆屬于儀器儀表?；窗矡崾綒怏w質(zhì)量流量計找哪家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2825482.html</p></div></div></div></div></div><div id="ynkmolc" class="page-right 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