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clearfix"><h1>浙江液體渦輪流量計(jì)哪家比較好信息推薦江蘇中徽測(cè)控儀表供應(yīng)</h1><div id="txpoace" class="proBig"><div id="td87yac" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289098819741/4521959.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="onpm8f2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289098819741/4521959.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ktliace" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>浙江液體渦輪流量計(jì)哪家比較好,流量計(jì)</p><p><span>***更新：</span>2021-01-04 04:28:16</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="3keb8l4" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測(cè)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(hào)</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="8lu8yfc" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zipm7xm" class="box"><p><p> 孔板流量計(jì)安裝對(duì)管道的要求：1．孔板流量計(jì)安裝時(shí)應(yīng)配有一段測(cè)量管,至少保持**DN、后5DN的等徑直管段，以提高測(cè)量精度。2．在孔板流量計(jì)前后若需安裝閥門，比較好選閘閥且在運(yùn)行中全開；調(diào)節(jié)閥則應(yīng)在下游5DN之后的管路中。3．引壓管路的內(nèi)徑與管路長(zhǎng)度和介質(zhì)臟污程度有關(guān)，通常在45米以內(nèi)用內(nèi)徑為8-12mm的管子。4．測(cè)量液體流量時(shí)引壓管水平段應(yīng)在同一水平面內(nèi)。若是在垂直管道上安裝節(jié)流件，引壓短管之間相距一定的距離（垂線方向），這對(duì)差壓變送器的零點(diǎn)有影響，應(yīng)通過“零點(diǎn)遷移”來校正。5．引壓管路應(yīng)有牢固的支架托承，兩根取壓管路應(yīng)盡可能互相靠近并遠(yuǎn)離熱源或震動(dòng)源，測(cè)量水蒸汽流量時(shí)，浙江液體渦輪流量計(jì)哪家比較好，應(yīng)用保溫材料一同包扎，必須時(shí)（如氣溫0℃以下）加伴熱管防止結(jié)冰。在測(cè)量臟污流量時(shí)，浙江液體渦輪流量計(jì)哪家比較好，應(yīng)附設(shè)隔離器或沉降器。6．引壓管路內(nèi)必須始終保持單相流體狀態(tài)。被測(cè)流體是氣體時(shí)，引壓管路（包括差壓計(jì)的壓力腔）內(nèi)全部是氣相；被測(cè)流體是液體時(shí)，引壓管路內(nèi)全部是液相，不能有氣泡，浙江液體渦輪流量計(jì)哪家比較好。為此應(yīng)在引壓管路的比較低點(diǎn)裝排水閥或在比較高點(diǎn)裝排氣閥，在新裝或檢修差壓變送器時(shí)時(shí)應(yīng)特別注意。 </p> <p> <br /> 容積式流量計(jì)與差壓式流量計(jì)、浮子流量計(jì)并列為三類使用量比較大的流量計(jì)；浙江液體渦輪流量計(jì)哪家比較好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江液體渦輪流量計(jì)哪家比較好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289098819741/4521959.png"></div><p> <p> 精度高由于V錐結(jié)構(gòu)無可動(dòng)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(jì)量器具配備和管理通則》規(guī)定,用于能源計(jì)量的流量計(jì)準(zhǔn)確度等級(jí)要求為:煤氣和天然氣為2.0級(jí)。所以在測(cè)試分離器出口的氣體測(cè)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(huì)低于1.5級(jí),完全能滿足計(jì)量要求。長(zhǎng)期性能好由于錐體的輪廓形狀限制了介質(zhì)的流動(dòng),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(jì)可以在很長(zhǎng)時(shí)間內(nèi)保持精度而不必校驗(yàn)。 </p> <p> <br /> </p> <p> <br /> </p> </p> <p> <br /> 浙江液體渦輪流量計(jì)哪家比較好測(cè)量液體流量時(shí)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="浙江液體渦輪流量計(jì)哪家比較好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289052754481/5890853.png"></div><p> 孔板流量計(jì)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(dòng)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(jì)可以通過測(cè)量壓差來衡量流體流量的大小。這種測(cè)量方法是以能量守衡定律和流動(dòng)連續(xù)性定律為基準(zhǔn)的?？装辶髁坑?jì)可測(cè)量管道中各種流體的流量，可測(cè)量的介質(zhì)有液體、氣體、蒸汽，被廣泛應(yīng)用于石油、化工、冶金、輕工、煤礦等工業(yè)部門。測(cè)量原理：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(shí)，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 /> </p><p> 熱電偶安裝時(shí)應(yīng)放置在盡可能靠近所要測(cè)的溫度控制點(diǎn)。為防止熱量沿?zé)犭娕紓髯呋蚍乐贡Ｗo(hù)管影響被測(cè)溫度，熱電偶應(yīng)浸入所測(cè)流體之中，深度至少為直徑的10倍。當(dāng)測(cè)量固體溫度時(shí)，熱電偶應(yīng)當(dāng)頂著該材料或與該材料緊密接觸。為了使導(dǎo)熱誤差減至小，應(yīng)減小接點(diǎn)附近的溫度梯度。當(dāng)用熱電偶測(cè)量管道中的氣體溫度時(shí)，如果管壁溫度明顯地較高或較低，則熱電偶將對(duì)之輻射或吸收熱量，從而顯著改變被測(cè)溫度。這時(shí)，可以用一輻射屏蔽罩來使其溫度接近氣體溫度，采用所謂的屏罩式熱電偶。選擇測(cè)溫點(diǎn)時(shí)應(yīng)具有性，例如測(cè)量管道中流體溫度時(shí)，熱電偶的測(cè)量端應(yīng)處于管道中流速比較大處。一般來說，熱電偶的保護(hù)套管末端應(yīng)越過流速中心線。 </p> <p> <br /> </p> <p> <br /> 孔板流量計(jì)又稱為差壓式流量計(jì),廣泛應(yīng)用于氣體、蒸汽和液體的流量測(cè)量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江液體渦輪流量計(jì)哪家比較好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436288996836659/3226440.png"></div><p style="text-indent:25px">安裝排污減壓閥楔形流量計(jì)+雙法蘭變送器的流量檢測(cè)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(gè)閥門非常重要，在流量計(jì)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。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，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，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(jì)維護(hù)維修工作更加方便孔板流量計(jì)標(biāo)準(zhǔn)型節(jié)流裝置無須實(shí)流校準(zhǔn)，即可投用。浙江液體渦輪流量計(jì)哪家比較好</p><p style="text-indent:25px">質(zhì)量流量傳感器安裝應(yīng)使傳感器流向標(biāo)識(shí)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。浙江液體渦輪流量計(jì)哪家比較好</p><p style="text-indent:25px">超聲波流量計(jì)是基于超聲波在流動(dòng)介質(zhì)中傳播的速度等于被測(cè)介質(zhì)的平均流速和聲波本身速度的幾何和的原理而設(shè)計(jì)的。它也是由測(cè)流速來反映流量大小的。超聲波流量計(jì)雖然在70年代才出現(xiàn)，但由于它可以制成非接觸型式，并可與超聲波水位計(jì)聯(lián)動(dòng)進(jìn)行開口流量測(cè)量，對(duì)流體又不產(chǎn)生擾動(dòng)和阻力，所以很受歡。超聲波流量計(jì)按測(cè)量原理分可分為時(shí)差式和多普勒式利用時(shí)差式原理制造的時(shí)差式超聲流量計(jì)近年來得到廣泛的關(guān)注和使用，是目前企事業(yè)使用多的一種超聲波流量計(jì)。利用多普勒效應(yīng)制造的超聲多普勒流量計(jì)多用于測(cè)量介質(zhì)有一定的懸浮顆粒或氣泡介質(zhì)，使用有一定的局限性，但卻解決了時(shí)差式超聲波流量計(jì)只能測(cè)量單一清澈流體的問題，也被認(rèn)為是非接觸測(cè)量雙相流的理想儀表。浙江液體渦輪流量計(jì)哪家比較好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2694943.html</p></div></div></div></div></div><div id="laxegxz" class="page-right twoColRt"><div id="yiuqcjv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="u32lsel" 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) 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