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href="http://www.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?淮安長頸噴嘴流量計找哪家和諧共贏江蘇中徽測控儀表供應(yīng)</p><div id="exye27n" class="leftbox clearfix"><h1>淮安長頸噴嘴流量計找哪家和諧共贏江蘇中徽測控儀表供應(yīng)</h1><div id="iqhyhaa" class="proBig"><div id="rzqctuf" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312837089111328/5851189.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3eggcta" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312837089111328/5851189.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="f8gcxj2" 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>淮安長頸噴嘴流量計找哪家,流量計</p><p><span>***更新：</span>2020-08-25 21:17:46</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="rj8njao" 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: </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="o7hd3nw" class="page-proshow02"><p class="title">詳細說明</p><div id="bekwxtp" class="box"><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)是標準體積流量。質(zhì)量流量或標準體積流量都必須通過流體密度進行換算，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)成干飽和蒸汽進行測量。這些誤差如果不加以限制或消除，淮安長頸噴嘴流量計找哪家，渦街流量計的總測量誤差會很大，淮安長頸噴嘴流量計找哪家。流量計可用于氣體，淮安長頸噴嘴流量計找哪家、液體、蒸汽等介質(zhì)流量的測量。淮安長頸噴嘴流量計找哪家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安長頸噴嘴流量計找哪家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837089111328/5851189.png"></div><p> 差壓式流量計 </p> <p> 差壓式流量計是根據(jù)安裝于管道中流量檢測件產(chǎn)生的差壓,已知的流體條件和檢測件與管道的幾何尺寸來計算流量的儀表。 </p> <p> <span style="font-size:12px;">差壓式流量計由一次裝置(檢測件)和二次裝置(差壓轉(zhuǎn)換和流量顯示儀表)組成。通常以檢測件形式對差壓式流量計分類,如孔板流量計、文丘里流量計、均速管流量計等。</span> </p> <p> <span style="font-size:12px;">二次裝置為各種機械、電子、機電一體式差壓計,差壓變送器及流量顯示儀表。它已發(fā)展為三化(系列化、通用化及標準化)程度很高的、種類規(guī)格龐雜的一大類儀表,它既可測量流量參數(shù),也可測量其它參數(shù)(如壓力、物位、密度等)。</span><span style="font-size:12px;">差壓式流量計的檢測件按其作用原理可分為:節(jié)流裝置、水力阻力式、離心式、動壓頭式、動壓頭增益式及射流式幾大類。</span> 南通長頸噴嘴流量計銷售廠家測量水蒸汽流量時，應(yīng)用保溫材料一同包扎，必須時（如氣溫0℃以下）加伴熱管防止結(jié)冰。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安長頸噴嘴流量計找哪家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837282109375/9143518.png"></div><p> 流量計指示被測流量和(或)在選定的時間間隔內(nèi)流體總量的儀表，也是測量液體、氣體流量必不可少的儀表，大家平時想必也都見過許多不同類型的流量計。正確的安裝方式對流量計來說十分重要。 </p> <p> 流量測量的發(fā)展可追溯到古代的水利工程和城市供水系統(tǒng)。古羅馬凱撒時代已采用孔板測量居民的飲用水水量。公元**00年左右古埃及用堰法測量尼羅河的流量。我國的都江堰水利工程應(yīng)用寶瓶口的水位觀測水量大小等等。17世紀托里拆利奠定差壓式流量計的理論基礎(chǔ)，這是流量測量的里程碑。自那以后，18、19世紀流量測量的許多類型儀表的雛形開始形成，如堰、示蹤法、皮托管、文丘里管、容積、渦輪及靶式流量計等。 </p><p> 孔板流量計優(yōu)點： </p> <p> 標準節(jié)流件是全世界通用的，并得到了國際標準組織的認可，無需實流校準，即可投用，在流量計中亦是的。結(jié)構(gòu)易于復(fù)制，簡單、牢固、性能穩(wěn)定可靠、價格低廉；應(yīng)用范圍廣，包括全部單相流體（液、氣、蒸汽）、部分混相流，一般生產(chǎn)過程的管徑、工作狀態(tài)(溫度、壓力)皆有產(chǎn)品。檢測件和差壓顯示儀表可分開不同廠家生產(chǎn)，便與專業(yè)化規(guī)模生產(chǎn)； </p> <p> 缺點： </p> <p> 測量的重復(fù)性、精確度在流量計中屬于中等水平，由于眾多因素的影響錯綜復(fù)雜，精確度難于提高。范圍度窄，由于流量系數(shù)與雷諾數(shù)有關(guān),一般范圍度* 3∶1 ～ 4∶1。有較長的直管段長度要求，一般難于滿足。尤其對較大管徑，問題更加突出；壓力損失大；通常為維持一臺孔板流量計正常運行，水泵需要附加動力克服孔板的壓力損失。該附加耗電量可直接由電磁流量計流量范圍大,口徑范圍寬；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="淮安長頸噴嘴流量計找哪家,流量計" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837414560547/9988671.png"></div><p> 電磁流量計接地的原因： </p> <p> 電磁流量計內(nèi)的測量電極處于一個直流或交流電場內(nèi)，如果其環(huán)境不能有效地被屏蔽于一個無干擾的條件下，對測量有嚴重干擾。傳感器外殼接地與否，直接關(guān)系到測量的精度和穩(wěn)定性，接地導(dǎo)線必須不傳任何干擾電壓，因此電磁流量計要求有非?？煽康慕拥兀龊媒拥仄帘危駝t就會產(chǎn)生干擾電流。<span style="font-size:12px;"> </span> </p> <p> 電磁流量計接地的好處： </p> <p> 若連接流量計的管道是(相對于被測介質(zhì))絕緣的則要用接地環(huán)，它的材質(zhì)應(yīng)根據(jù)被測介質(zhì)的腐蝕性選用。如果是聚四氟乙烯內(nèi)襯的測量傳感器，為了保測量傳感器能正常工作，要選用接地環(huán)。 </p> <p> 超聲波流量計測量液體流量時引壓管水平段應(yīng)在同一水平面內(nèi)；河北金屬轉(zhuǎn)子流量計哪家比較好</p><p style="text-indent:25px">便攜式超聲波流量計具有很大的機動性，首要用于對不一樣管道的流體流量作臨時性丈量?；窗查L頸噴嘴流量計找哪家</p><p> 水平管道基本安裝方式對于水平管道，測量氣體時推薦安裝在管道上方160度范圍內(nèi)，尤其對于有大量水粉的氣體時，我們只推薦這樣安裝;測量液體時推薦安裝在管道下方160度范圍內(nèi)，尤其對于含有大量氣體的液體時，我們只推薦這樣安裝;但有一點要注意，對于那些極易氣化的液體，如液態(tài)的烯烴類介質(zhì)，安裝時插入方向同氣體，在管道上方。測量蒸汽時只推薦傳感器安裝在管道下方160度內(nèi)，并且要使傳感器處于整個測量裝置的比較高點。垂直管道基本安裝方式對于垂直管道，理論上可以在360度內(nèi)安裝。對于含有大量水分的濕氣體，推薦傳感器安裝時向上傾斜5度，如左圖所示。對于含有大量氣體的液體，推薦傳感器安裝時向下傾斜5度，如右圖所示。對于蒸汽，推薦傳感器安裝時下傾斜5度，如右圖，且傳感器應(yīng)該處于整個測量系統(tǒng)中的比較高點。威力巴安裝所需直管段小直管段要求—彎管后2D安裝如圖所示。當(dāng)管道上、下游的直管段不夠長時，我們推薦在彎管后2倍管道內(nèi)徑處安裝威力巴，因在彎管后的流體剖面較復(fù)雜，需將流體系數(shù)K做適當(dāng)?shù)恼{(diào)整。調(diào)整K系數(shù)后，測量精度為±3%。淮安長頸噴嘴流量計找哪家</p><p style="text-indent:25px">江蘇中徽測控儀表有限公司位于江蘇省淮安市，注冊資本300-500萬元，旗下?lián)碛?1~100人優(yōu)異專業(yè)的員工。中徽測控是江蘇中徽測控儀表有限公司的主營品牌，是專業(yè)的主營產(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、旋進漩渦流量計、渦輪流量計、壓力差壓變送器、校驗設(shè)備等。公司，擁有自己**的技術(shù)體系。公司堅持以客戶為中心、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、旋進漩渦流量計、渦輪流量計、壓力差壓變送器、校驗設(shè)備等。市場為導(dǎo)向，重信譽，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。誠實、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準則。公司致力于打造***的雷達料位計，雷達液位計，物位計，水位計。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1040049.html</p></div></div></div></div></div><div id="bpght83" class="page-right twoColRt"><div id="3bpqwso" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="83yzvw8" 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" 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