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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="ekqo44m" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ec4okwm" class="box"><p><p style="text-indent:25px">安裝排污減壓閥楔形流量計+雙法蘭變送器的流量檢測模式，在取壓閥門與雙法蘭連接部件之間要設(shè)置排污泄壓閥門。這個閥門非常重要，在流量計校準(zhǔn)過程中既可以保證正負(fù)雙法蘭之間的受壓一致都為大氣壓確保校準(zhǔn)可靠，更能保證維修人員的安全，淮安熱式氣體質(zhì)量流量計供貨商。若雙法蘭變送器損壞需要更換，通過排污泄壓閥門能夠判斷取壓一次閥門是否滲漏，淮安熱式氣體質(zhì)量流量計供貨商，只有在確保安全的情況下，才能拆卸雙法蘭變送器。很多工程安裝過程中，省略了排污泄壓閥門的安裝，淮安熱式氣體質(zhì)量流量計供貨商，這是不正確的，一定要進(jìn)行整改。安裝排污閥的楔形流量計維護(hù)維修工作更加方便質(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?；窗矡崾綒怏w質(zhì)量流量計供貨商</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)量流量計供貨商,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436288983535731/8125157.png"></div><p> 孔板流量計分類 </p> <p> 1、標(biāo)準(zhǔn)孔板標(biāo)準(zhǔn)孔板是一類規(guī)格多的標(biāo)準(zhǔn)節(jié)流裝置，廣泛應(yīng)用于各種流體特別是氣體流量測量中，孔板的結(jié)構(gòu)因壓力、通徑、取壓方式的不同而不同。 </p> <p> 2、標(biāo)準(zhǔn)孔板按常用取壓方式可分為角接取壓、法蘭取壓、徑距取壓三種類型。 </p> <p> 2、圓缺孔板 </p> <p> 取壓方式：法蘭取壓 </p> <p> 3、偏心孔板 </p> <p> 取壓方式：角接取壓 </p> <p> 偏心孔板和圓缺孔板只適于安裝在水平或傾斜管道上，不能在垂直管道上使用。如被測流體中含有固體顆粒時，開口或缺口應(yīng)置于下方；如液體中有氣體析出時，開口或缺口應(yīng)置于上方；取壓口處在圓缺口或偏心開孔和管道相切點(diǎn)的對面。淮安熱式氣體質(zhì)量流量計供貨商流量計傳感器上游也應(yīng)該有一定的直管段，一般在5D~10D。</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)量流量計供貨商,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png"></div><p> 超聲流量計優(yōu)點(diǎn):（1）超聲波流量計是一種非接觸式測量儀表，可用來測量不易接觸、不易觀察的流體流量和大管徑流量。它不會改變流體的流動狀態(tài)，不會產(chǎn)生壓力損失，且便于安裝。（2）可以測量強(qiáng)腐蝕性介質(zhì)和非導(dǎo)電介質(zhì)的流量。（3）超聲波流量計的測量范圍大，管徑范圍從20mm～５m.（4）超聲波流量計可以測量各種液體和污水流量。（5）超聲波流量計測量的體積流量不受被測流體的溫度、壓力、粘度及密度等熱物性參數(shù)的影響。可以做成固定式和便攜式兩種形式。 </p> <p> <br /> </p> <p> <br /> </p><p style="text-indent:25px">充滿管道的流體，當(dāng)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，從而使流速增加，靜壓力低，于是在節(jié)流件前后便產(chǎn)生了壓力降，即壓差，介質(zhì)流動的流量越大，在節(jié)流件前后產(chǎn)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(zhǔn)的。智能節(jié)流裝置（孔板流量計）是集流量、溫度、壓力檢測功能于一體，并能進(jìn)行溫度、壓力自動補(bǔ)償?shù)男乱淮髁坑?，該孔板流量計采用先進(jìn)的微機(jī)技術(shù)與微功耗新技術(shù)，功能強(qiáng)，結(jié)構(gòu)緊湊，操作簡單，使用方便?！装辶髁坑嫻?jié)流裝置結(jié)構(gòu)易于復(fù)制，簡單、牢固，性能穩(wěn)定可靠，使用期限長，價格低廉。▲孔板計算采用國際標(biāo)準(zhǔn)與加工▲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?！鴺?biāo)準(zhǔn)型節(jié)流裝置無須實流校準(zhǔn)，即可投用。▲一體型孔板流量計安裝更簡單，無須引壓管，可直接接差壓變送器和壓力變送器。電磁流量計是通過測量導(dǎo)電液體的速度確定工作狀態(tài)下的體積流量。</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)量流量計供貨商,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289134746609/1367639.png"></div><p style="text-indent:25px">售價較高同種規(guī)格的V錐流量計的價格要高于孔板流量計,但低于可更換孔板流量計。由于V錐的用料多、加工工藝復(fù)雜、標(biāo)定費(fèi)用高,使得其售價較高。但是在考慮流量計時,初次購買價及安裝費(fèi)用、儀表的可靠性、長期維護(hù)費(fèi)用、長久壓力損失等綜合因素的總評才是選取流量計的依據(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錐流量計除了在初次購買費(fèi)用上高于孔板流量計外,其他的費(fèi)用應(yīng)該與孔板流量計持平或低于孔板流量計。尤其是在補(bǔ)償壓力損失所需要的耗能方面,V錐流量計遠(yuǎn)遠(yuǎn)優(yōu)于孔板流量計。所以從長遠(yuǎn)考慮,使用V錐流量計的綜合費(fèi)用要低于孔板流量計。使用可更換孔板的目的就是為了提高孔板的量程比。但是其價格昂貴。如果給V錐流量計配兩臺不同量程的變送器（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,而其價格要遠(yuǎn)低于可更換孔板。3差壓較低由于V錐流量計的流出系數(shù)要大于孔板流量計的流出系數(shù),使得相同流量時孔板的差壓值要高于V錐的差壓值?？装辶髁坑嫷淖兯推饕话愣际怯弥胁顗罕?V錐流量計一般用低差壓表。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?；窗矡崾綒怏w質(zhì)量流量計供貨商</p><p style="text-indent:25px">流量計有堰槽式流量計，它是通過測量液位來反映流量。淮安熱式氣體質(zhì)量流量計供貨商</p><p> <p> <p> 渦街流量計工作狀態(tài)下的體積流量不受被測流體溫度、壓力、密度等熱工參數(shù)的影響，但液體或蒸汽的終測量結(jié)果應(yīng)是質(zhì)量流量，對于氣體，終測量結(jié)果應(yīng)是標(biāo)準(zhǔn)體積流量。質(zhì)量流量或標(biāo)準(zhǔn)體積流量都必須通過流體密度進(jìn)行換算，必須考慮流體工況變化引起的流體密度變化。 </p> <p> 造成流量測量誤差的因素主要有：管道流速不均造成的測量誤差；不能準(zhǔn)確確定流體工況變化時的介質(zhì)密度；將濕飽和蒸汽假設(shè)成干飽和蒸汽進(jìn)行測量。這些誤差如果不加以限制或消除，渦街流量計的總測量誤差會很大。 </p> </p> </p> <p> <br /> 淮安熱式氣體質(zhì)量流量計供貨商</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2714866.html</p></div></div></div></div></div><div id="c4c0yoc" class="page-right twoColRt"><div id="gwcayek" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gm2qmio" 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(qiáng) 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(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="mki2ks4" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" 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