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19:13:47</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="xbd2ssi" 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="tnpjfbt" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3uwye24" class="box"><p><p> 渦街流量計(jì) </p> <p> 工作原理：根據(jù)流體振蕩原理來測(cè)量流量的，流體在管道中經(jīng)過渦街流量變送器時(shí)，在三角柱的旋渦發(fā)生體后上下交替產(chǎn)生正比于流速的兩列旋渦，旋渦的釋放頻率與流過旋渦發(fā)生體的流體平均速度及旋渦發(fā)生體特征寬度有關(guān)，根據(jù)這種關(guān)系，旋渦頻率就可以計(jì)算出流過旋渦發(fā)生體的流體平均速度，再乘以橫截面積得到流量。 </p> <p> 工作特點(diǎn)：①結(jié)構(gòu)簡(jiǎn)單而牢固，無可動(dòng)部件，可靠性高，長(zhǎng)期運(yùn)行十分可靠;②安裝簡(jiǎn)單，泰州插入式巴類流量計(jì)，泰州插入式巴類流量計(jì)，維護(hù)十分方便;③檢測(cè)傳感器不直接接觸被測(cè)介質(zhì)，性能穩(wěn)定，泰州插入式巴類流量計(jì)，壽命長(zhǎng);④輸出是與流量成正比的脈沖信號(hào)，無零點(diǎn)漂移，精度高;⑤測(cè)量范圍寬，量程比可達(dá)1：10;⑥壓力損失較小，運(yùn)行費(fèi)用低，更具節(jié)能意義。測(cè)量水蒸汽流量時(shí)，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。泰州插入式巴類流量計(jì)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州插入式巴類流量計(jì),流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312838117031250/1384984.png"></div><p> 如果在測(cè)量區(qū)內(nèi)有穩(wěn)態(tài)的渦流則會(huì)影響測(cè)量的穩(wěn)定性和測(cè)量的精度，這時(shí)可以增加前后直管段的長(zhǎng)度、采用一個(gè)流量穩(wěn)定器或減少測(cè)量點(diǎn)的截面以穩(wěn)定流速分布。流量計(jì)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(duì)測(cè)量電極的影響，電極軸向保持水平為好。垂直安裝時(shí)，流體應(yīng)自下而上流動(dòng)。傳感器不能安裝在管道的比較高位置，這個(gè)位置容易積聚氣泡。 </p> <p> 確保流量傳感器在測(cè)量時(shí)，管道中充滿被測(cè)流體，不能出現(xiàn)非滿管狀態(tài)。如管道存在非滿管或是出口有放空狀態(tài)，傳感器應(yīng)安裝在一根虹吸管上。 </p> <p> 電磁流量計(jì)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。福建長(zhǎng)頸噴嘴流量計(jì)哪個(gè)廠家質(zhì)量好渦輪流量計(jì)在以下一些測(cè)量對(duì)象獲得廣泛應(yīng)用:石油、有機(jī)液體、無機(jī)液、液化氣、天然氣和低溫流；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州插入式巴類流量計(jì),流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312838243867187/2569980.png"></div><p> 容積式流量計(jì) 容積式流量計(jì),又稱定排量流量計(jì),簡(jiǎn)稱 PD流量計(jì),在流量?jī)x表中是精度比較高的一類。它利用機(jī)械測(cè) 量元件把流體連續(xù)不斷地分割成單個(gè)已知的體積部分,根據(jù)測(cè)量室逐次重復(fù)地充滿和排放該體積部分流體的次數(shù)來測(cè)量流體體積總量。 </p> <p> 容積式流量計(jì)按其測(cè)量元件分類,可分為橢圓齒輪流量計(jì)、刮板流量計(jì)、雙轉(zhuǎn)子流量計(jì)、旋轉(zhuǎn)活塞流量計(jì)、往復(fù)活塞流量計(jì)、圓盤流量計(jì)、液封轉(zhuǎn)筒式流量計(jì)、濕式氣量計(jì)及膜式氣量計(jì)等。 </p> <p> 優(yōu)點(diǎn): </p> <p> (1)計(jì)量精度高; </p> <p> (2)安裝管道條件對(duì)計(jì)量精度沒有影響; </p> <p> (3)可用于高粘度液體的測(cè)量; </p> <p> (4)范圍度寬; </p> <p> (5)直讀式儀表無需外部能源可直接獲得累計(jì),總量,清晰明了,操作簡(jiǎn)便。 </p> <p> 缺點(diǎn): </p> <p> (1)結(jié)果復(fù)雜,體積龐大; </p> <p> (2)被測(cè)介質(zhì)種類、口徑、介質(zhì)工作狀態(tài)局限性較大; </p> <p> (3)不適用于高、低溫場(chǎng)合; </p> <p> (4)大部分儀表只適用于潔凈單相流體; </p> <p> (5)產(chǎn)生噪聲及振動(dòng)。 </p> <p> 應(yīng)用概況: </p> <p> 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),常應(yīng)用于昂貴介質(zhì)(油品、天然氣等)的總量測(cè)量。 </p><p> 按流量計(jì)的結(jié)構(gòu)原理進(jìn)行分類。有容積式流量計(jì)、差壓式流量計(jì)、浮子流量計(jì)、渦輪流量計(jì)、電磁流量計(jì)、流體振蕩流量計(jì)中的渦街流量計(jì)、質(zhì)量流量計(jì)和插入式流量計(jì)。 </p> <p> 按測(cè)量對(duì)象劃分就有封閉管道和明渠兩大類;按測(cè)量目的又可分為總量測(cè)量和流量測(cè)量,其儀表分別稱作總量表和流量計(jì)。總量表測(cè)量一段時(shí)間內(nèi)流過管道的流量,是以短暫時(shí)間內(nèi)流過的總量除以該時(shí)間的商來表示,實(shí)際上流量計(jì)通常亦備有累積流量裝置,做總量表使用,而總量表亦備有流量發(fā)訊裝置。因此, 以嚴(yán)格意義來分流量計(jì)和總量表已無實(shí)際意義。智能電磁流量計(jì)在使用時(shí)我們要求被測(cè)介質(zhì)必須是地電位，一般都是通過管道或法蘭接地；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰州插入式巴類流量計(jì),流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312838129570312/452689.png"></div><p> 智能電磁流量計(jì)是60年代興起的一種流量?jī)x表，因?yàn)樗歉鶕?jù)傳統(tǒng)的物理電磁感應(yīng)原理制成的，擁有著非常獨(dú)特的特點(diǎn)，所以被的應(yīng)用到生產(chǎn)的各個(gè)領(lǐng)域，它的工作原理非常的簡(jiǎn)單，如果發(fā)生故障，維修起來也非常的方便，適合所有的工廠使用。 </p> <p> 1、連續(xù)浸水防護(hù)等級(jí)IP68型：給排水、污水處理安裝地大多為地下管線的害井內(nèi)，雨水、地下滲水常使流量計(jì)浸于水中，或冬季結(jié)露，降低接線端子和線圈的絕緣強(qiáng)度，影響產(chǎn)品性能并縮短流量計(jì)使用壽命。 </p> <p> 2、潛水型：用于明渠流量測(cè)量，替代傳統(tǒng)堪板式流量計(jì)。 </p> <p> 3、防爆型：使用于在具有可性氣體環(huán)境條件下，如化工、煤礦、油田使用。 </p> <p> 4、衛(wèi)生型：容易拆卸沖洗消毒，可快速安裝，適用于食品、醫(yī)藥部門使用。 </p> <p> 5、高壓型：對(duì)于石油化工的鉆井循環(huán)泥漿、固井水泥漿、采油工藝的高壓注水等。 </p> <p> 6、一般型：適用于除上所述的，一般的用途。電磁流量計(jì)的安裝與調(diào)試比其它流量計(jì)復(fù)雜，且要求更嚴(yán)格。浙江長(zhǎng)頸噴嘴流量計(jì)生產(chǎn)廠家</p><p style="text-indent:25px">流量計(jì)可用于氣體、液體、蒸汽等介質(zhì)流量的測(cè)量。泰州插入式巴類流量計(jì)</p><p style="text-indent:25px">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。泰州插入式巴類流量計(jì)</p><p style="text-indent:25px">江蘇中徽測(cè)控儀表有限公司主要經(jīng)營范圍是儀器儀表，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下雷達(dá)料位計(jì)，雷達(dá)液位計(jì)，物位計(jì)，水位計(jì)深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造儀器儀表良好品牌。江蘇中徽測(cè)控儀表憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1132150.html</p></div></div></div></div></div><div id="fogdqxz" class="page-right twoColRt"><div 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