德陽(yáng)渦街流量計(jì)報(bào)價(jià) 客戶至上成都皖川科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="常見(jiàn)故障渦街流量計(jì)常見(jiàn)故障：一臺(tái)DN50渦街流量計(jì)，從說(shuō)明書(shū)查到，其液體用流量范圍是3-50m3/h。我們?cè)谟土鳂?biāo)準(zhǔn)裝置上標(biāo)定的結(jié)果是10-50m3/h符合精度要求，但10m3/h以下精度不合格，德陽(yáng)渦街流量計(jì)報(bào)價(jià)，應(yīng)如何評(píng)價(jià)此臺(tái)流量計(jì)？渦"><meta name="keywords" content="德陽(yáng)渦街流量計(jì)報(bào)價(jià),渦街流量計(jì)"><link rel="canonical" href="http://m.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta 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src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349449208984/8611731.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3qxub9q" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349449208984/8611731.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xhzg2c2" 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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>德陽(yáng)渦街流量計(jì)報(bào)價(jià),渦街流量計(jì)</p><p><span>***更新：</span>2020-09-23 14:11:47</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="b23olv2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都皖川科技有限公司</a></p><p><span>聯(lián)系人：</span>朱成生</p><p><span>郵箱: </span>cdwckjgs@sina.com</p><p><span>電話: </span>18755046999</p><p><span>傳真: </span>028_87463776</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>028-87463776</p><p><span>地址: </span>四川省成都市青羊區(qū)青羊萬(wàn)達(dá)廣場(chǎng)SOHO公寓2-2-1138室</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="bac872m" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ogik8sm" class="box"><p><p> 常見(jiàn)故障 </p> <p> 渦街流量計(jì)常見(jiàn)故障：一臺(tái)DN50渦街流量計(jì)，從說(shuō)明書(shū)查到，其液體用流量范圍是3-50m3/h。我們?cè)谟土鳂?biāo)準(zhǔn)裝置上標(biāo)定的結(jié)果是10-50 m3/h符合精度要求，但10m3/h以下精度不合格，德陽(yáng)渦街流量計(jì)報(bào)價(jià)，應(yīng)如何評(píng)價(jià)此臺(tái)流量計(jì)？ </p> <p> 渦街流量汁說(shuō)明書(shū)中，標(biāo)明的流量范圍是使用于特定參考介質(zhì)的流量范圍，如液體—般指常溫水。用于其他介質(zhì)時(shí)，可用流量范圍將隨介質(zhì)的粘度和密度不同而異，德陽(yáng)渦街流量計(jì)報(bào)價(jià)。由于油流量標(biāo)準(zhǔn)裝置采用粘度比水大，密度比水小的柴油做標(biāo)定介質(zhì)，流量計(jì)的下限流量—般都會(huì)相應(yīng)提高，使可用流量范圍變窄，德陽(yáng)渦街流量計(jì)報(bào)價(jià)。所以，渦街流量計(jì)在油流量標(biāo)定裝置上標(biāo)定出現(xiàn)小流量性能變差是正常的。由此我們不難推斷，如果用液化石油氣(這種低粘度介質(zhì))標(biāo)定渦街流量汁，將會(huì)得到比水好的相反結(jié)果。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 德陽(yáng)渦街流量計(jì)報(bào)價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="德陽(yáng)渦街流量計(jì)報(bào)價(jià),渦街流量計(jì)" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349449208984/8611731.jpg"></div><p> 渦街流量計(jì)也稱之為旋渦流量計(jì)或卡門渦街流量計(jì) </p> <p> 綜合吸收發(fā)達(dá)國(guó)家先進(jìn)技術(shù)和總結(jié)多年研究生產(chǎn)經(jīng)驗(yàn)的基礎(chǔ)上進(jìn)行精心設(shè)計(jì)的產(chǎn)品，實(shí)現(xiàn)了產(chǎn)品智能化、標(biāo)準(zhǔn)化、系列化、通用化、生產(chǎn)模具化、確保產(chǎn)品質(zhì)量的美觀性。該產(chǎn)品具有電路先進(jìn)、功耗微低、量程比寬、結(jié)構(gòu)簡(jiǎn)單、阻力損失小、堅(jiān)固耐用、用途廣、使用壽命長(zhǎng)、工作穩(wěn)定、便于安裝調(diào)試等特點(diǎn)。 </p> <p> <p> 原理 </p> <p> 在流體中設(shè)置三角柱型旋渦發(fā)生體，則從旋渦發(fā)生體兩側(cè)交替地產(chǎn)生有規(guī)則的旋渦，這種旋渦稱為卡門旋渦，旋渦列在旋渦發(fā)生體下游非對(duì)稱地排列。 </p> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 綿陽(yáng)渦街流量計(jì)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="德陽(yáng)渦街流量計(jì)報(bào)價(jià),渦街流量計(jì)" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349081816406/9531621.jpg"></div><p> 原理 </p> <p> 渦街流量計(jì)是根據(jù)卡門渦街原理(Kármán Vortex Street)測(cè)量氣體、蒸汽或液體的體積流量、標(biāo)況的體積流量或質(zhì)量流量的體積流量計(jì)。并可作為流量變送器應(yīng)用于自動(dòng)化控制系統(tǒng)中。 </p> <p> 渦街流量計(jì)是應(yīng)用流體振蕩原理來(lái)測(cè)量流量的，流體在管道中經(jīng)過(guò)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(guò)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)，可用下式表示：式中：為旋渦的釋放頻率，單位為Hz；v為流過(guò)旋渦發(fā)生體的流體平均速度，單位為m/s；d為旋渦發(fā)生體特征寬度，單位為m；St為斯特勞哈爾數(shù)（Strouhal number），無(wú)量綱，它的數(shù)值范圍為0.14－0.27。 </p> <p> St是雷諾數(shù)的函數(shù)，當(dāng)雷諾數(shù)Re在范圍內(nèi)，St值約為0.2。在測(cè)量中，要盡量滿足流體的雷諾數(shù)在，此時(shí)旋渦頻率由此，通過(guò)測(cè)量旋渦頻率就可以計(jì)算出流過(guò)旋渦發(fā)生體的流體平均速度v，再由式可以求出流量q，其中A為流體流過(guò)旋渦發(fā)生體的截面積 </p><p> 注意事項(xiàng) </p> <p> 1、**法蘭與直管段焊接時(shí)不能帶著傳感器焊接。 </p> <p> 2、安裝時(shí)應(yīng)使傳感器的流向標(biāo)志與管道內(nèi)流體流向一致。 </p> <p> 3、傳感器安裝前，法蘭凹槽內(nèi)必須放好密封圈。壓力和溫度測(cè)量點(diǎn)的位置，取壓點(diǎn)在傳感器下游3～5DN處，測(cè)溫點(diǎn)在下游5～8DN處。 </p> <p> 4、測(cè)量高溫介質(zhì)時(shí)，切勿用隔熱材料把傳感器連接桿周圍包起來(lái)。 </p> <p> 5、連接傳感器的屏蔽電纜走向，應(yīng)盡可能遠(yuǎn)離強(qiáng)電磁場(chǎng)的干擾場(chǎng)合。***不允許與高壓電纜一起敷設(shè)，屏蔽電纜要盡量縮短，并且不得盤卷，以減少分布電感，比較大長(zhǎng)度不應(yīng)超過(guò)200米。 </p> <p> 6、安裝傳感器前，管道必須進(jìn)行清洗。沖掉管內(nèi)的雜質(zhì)，避免通流后堵塞傳感器。測(cè)量液體的管道必須充滿被測(cè)液體，防止氣泡的干擾。 </p> <p> 測(cè)量氣體的管道為防止儲(chǔ)積液的干擾。安裝位置如圖五所示。高溫高壓下更換探頭體時(shí)，必須安全操作，做好高溫防護(hù)。降溫降壓后在安全條件下方可更換探頭。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="德陽(yáng)渦街流量計(jì)報(bào)價(jià),渦街流量計(jì)" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107349132265625/2309518.jpg"></div><p> 渦街流量計(jì)是根據(jù)卡門（Karman）渦街原理研究生產(chǎn)的測(cè)量氣體、蒸汽或液體的體積流量、標(biāo)況的體積流量或質(zhì)量流量的體積流量計(jì)。主要用于工業(yè)管道介質(zhì)流體的流量測(cè)量，如氣體、液體、蒸汽等多種介質(zhì)。其特點(diǎn)是壓力損失小，量程范圍大，精度高，在測(cè)量工況體積流量時(shí)幾乎不受流體密度、壓力、溫度、粘度等參數(shù)的影響。無(wú)可動(dòng)機(jī)械零件，因此可靠性高，維護(hù)量小。儀表參數(shù)能長(zhǎng)期穩(wěn)定。渦街流量計(jì)采用壓電應(yīng)力式傳感器，可靠性高，可在-20℃～+250℃的工作溫度范圍內(nèi)工作。有模擬標(biāo)準(zhǔn)信號(hào)，也有數(shù)字脈沖信號(hào)輸出，容易與計(jì)算機(jī)等數(shù)字系統(tǒng)配套使用，是一種比較先進(jìn)、理想的測(cè)量?jī)x器。 </p> <p> <br /> 內(nèi)江渦街流量計(jì)批發(fā)</p><p style="text-indent:25px">德陽(yáng)渦街流量計(jì)報(bào)價(jià)</p><p> 特點(diǎn) </p> <p> 1、結(jié)構(gòu)簡(jiǎn)單而牢固，無(wú)可動(dòng)部件，可靠性高，長(zhǎng)期運(yùn)行十分可靠。 </p> <p> 2、安裝簡(jiǎn)單，維護(hù)十分方便。 </p> <p> 3、檢測(cè)傳感器不直接接觸被測(cè)介質(zhì)，性能穩(wěn)定，壽命長(zhǎng)。 </p> <p> 4、輸出是與流量成正比的脈沖信號(hào)，無(wú)零點(diǎn)漂移，精度高。 </p> <p> 5、測(cè)量范圍寬，量程比可達(dá)1：10。壓力損失較小，運(yùn)行費(fèi)用低，更具節(jié)能意義。 </p> <p> 6、在一定的雷諾數(shù)范圍內(nèi),輸出信號(hào)頻率不受流體物理性質(zhì)和組份變化的影響，儀表系數(shù)*與旋渦發(fā)生體的形狀和尺寸有關(guān)，測(cè)量流體體積流量時(shí)無(wú)需補(bǔ)償，調(diào)換配件后一般無(wú)需重新標(biāo)定儀表系數(shù)。應(yīng)用范圍廣，蒸汽、氣體、液體的流量均可測(cè)量。德陽(yáng)渦街流量計(jì)報(bào)價(jià)</p><p style="text-indent:25px">成都皖川科技有限公司是一家研發(fā)、銷售計(jì)算機(jī)軟硬件;計(jì)算機(jī)系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機(jī)械設(shè)備、閥門、水泵、電線電纜、通訊器材(不含無(wú)線廣播電視發(fā)射及衛(wèi)星地面接收設(shè)備)、醫(yī)療器械(***一類)、實(shí)驗(yàn)設(shè)備、化工產(chǎn)品(不含危險(xiǎn)化學(xué)品)、五金交電、照明設(shè)備。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。成都皖川科技擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供耐磨熱電偶，氣體檢測(cè)儀器，便攜式氣體報(bào)警控制器，雙金屬溫度計(jì)。成都皖川科技致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶產(chǎn)品上的貼心，為用戶帶來(lái)良好體驗(yàn)。成都皖川科技始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使成都皖川科技在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/1389694.html</p></div></div></div></div></div><div id="b8ytvah" class="page-right twoColRt"><div id="q7a2jiz" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="zyqikmj" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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