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class="home-main container clearfix"><div id="xwjl7ro" class="twoCol"><div id="sg72x2r" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://www.cdcfah.com/cp/second-yiqiyibiao_llyb/">流量?jī)x表</a>?<a href="http://www.cdcfah.com/cp/third-llyb_liuliangji/">流量計(jì)</a>?插入式渦旋流量計(jì)生產(chǎn)廠家真誠(chéng)推薦西安倫騫電器設(shè)備供應(yīng)</p><div id="sm2kg4q" class="leftbox clearfix"><h1>插入式渦旋流量計(jì)生產(chǎn)廠家真誠(chéng)推薦西安倫騫電器設(shè)備供應(yīng)</h1><div id="2rqcu98" class="proBig"><div id="fdaxptp" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520330341797/7183549.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kj3as4l" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520330341797/7183549.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="udvskj2" 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>陜西省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>插入式渦旋流量計(jì)生產(chǎn)廠家,流量計(jì)</p><p><span>***更新：</span>2020-09-03 06:09:02</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="ma2gih7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">西安倫騫電器設(shè)備有限責(zé)任公司</a></p><p><span>聯(lián)系人：</span>付海飛</p><p><span>郵箱: </span>xalunqian@163.com</p><p><span>電話: </span>13891837328</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://xalunqian.shop.88360.com</p><p><span>手機(jī): </span>138-91837328</p><p><span>地址: </span>高新區(qū)發(fā)展大道25號(hào)軍民融合創(chuàng)新港</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="xqskhwn" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ir8ce2a" class="box"><p><p style="text-indent:25px">超聲流量計(jì)是通過(guò)檢測(cè)流體流動(dòng)對(duì)超聲束(或超聲脈沖)的作用以測(cè)量流量的儀表，插入式渦旋流量計(jì)生產(chǎn)廠家。超聲流量計(jì)主要由安裝在測(cè)量管道上的超聲換能器(或由換能器和測(cè)量管組成的超聲流量傳感器)和轉(zhuǎn)換器組成。超聲流量計(jì)和電磁流量計(jì)一樣，因儀表流通通道未設(shè)置任何阻礙件，均屬無(wú)阻礙流量計(jì)，是適于解決流量測(cè)量困難問(wèn)題的一類(lèi)流量計(jì)，特別在大口徑流量測(cè)量方面有較突出的優(yōu)點(diǎn)，插入式渦旋流量計(jì)生產(chǎn)廠家，它是發(fā)展迅速的一類(lèi)流量計(jì)之一。根據(jù)對(duì)信號(hào)檢測(cè)的原理，超聲流量計(jì)可分為傳播速度差法(直接時(shí)差法、時(shí)差法、相位差法和頻差法)、波束偏移法、多普勒法、互相關(guān)法、空間濾法及噪聲法等，插入式渦旋流量計(jì)生產(chǎn)廠家。槽式流量計(jì)發(fā)展的同時(shí)，美籍匈牙利人卡門(mén)正在研究渦街理論，1911年到1912年，他提出了卡門(mén)渦街新理論。插入式渦旋流量計(jì)生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="插入式渦旋流量計(jì)生產(chǎn)廠家,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520330341797/7183549.png"></div><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(chēng)為卡門(mén)旋渦，如右圖所示，旋渦列在旋渦發(fā)生體下游非對(duì)稱(chēng)地排列。 </p> <p> 渦街流量計(jì)是根據(jù)卡門(mén)（Karman）渦街原理測(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： </p> <p> f=Stv/d </p> <p> 式中:f為旋渦的釋放頻率，Hz；v為流過(guò)旋渦發(fā)生體的流體平均速度，m/s；d為旋渦發(fā)生體特征寬度，m；St為斯特羅哈數(shù)，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)，St=f（l/Re）。 </p> <p> 當(dāng)雷諾數(shù)Re在102~105范圍內(nèi)，St值約為0.2，因此，在測(cè)量中，要盡量滿足流體的雷諾數(shù)在102~105，旋渦頻率f=0.2v/d。 </p> <p> 由此可知，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q=vA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。一體分體式電磁流量計(jì)聯(lián)系方式渦輪流量計(jì)和容積式流量計(jì)、科里奧利質(zhì)量流量計(jì)稱(chēng)為流量計(jì)中三類(lèi)重復(fù)性、精度zui佳的產(chǎn)品。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="插入式渦旋流量計(jì)生產(chǎn)廠家,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521160000000/9536736.png"></div><p> 差壓式孔板流量計(jì)是一款流量測(cè)量?jī)x表，主要應(yīng)用于液體、氣體流量測(cè)量，像蒸汽流量測(cè)量就是一個(gè)典型的測(cè)量工況，蒸汽在流量測(cè)量的過(guò)程中，由于自身溫度較高，測(cè)量難度大一般的流量計(jì)都無(wú)法勝任，而差壓式孔板流量計(jì)就可以有效的解決。差壓式孔板流量計(jì)的應(yīng)用領(lǐng)域非常廣，測(cè)量精度可達(dá)±0.5%，溫度可達(dá)700度，并且量程比為10：1，主要在氣體、蒸汽、液體的流量測(cè)量領(lǐng)域應(yīng)用較多，差壓式孔板流量計(jì)還有一個(gè)優(yōu)勢(shì)就是安裝方便，并且也不需要維護(hù)。 </p><p> 超聲流量計(jì)可按下述原則來(lái)分類(lèi)。(1)測(cè)量原理:時(shí)差法超聲流量計(jì);頻差法超聲流量計(jì);相差法超聲流量計(jì);多普勒超聲流量計(jì);液位測(cè)量和平均流速測(cè)量相結(jié)合的非滿管和渠道超聲流量計(jì)。(2)使用方式:便攜式超聲流量計(jì)，特點(diǎn):便攜使用，內(nèi)置可充電鋰電池，適合移動(dòng)測(cè)量，配接磁性傳感器。固定式(標(biāo)準(zhǔn)管段式)超聲流量計(jì)。(3)換能器的安裝方法:標(biāo)準(zhǔn)管段式超聲流量計(jì)，特點(diǎn):需切開(kāi)管路安裝，但以后的維護(hù)可不停產(chǎn)?？蛇x擇單聲道或三聲道傳感器。外夾式超聲流量計(jì)，特點(diǎn):能夠完成固定和移動(dòng)測(cè)量。采用**耦合劑(室溫固化的硅橡膠或高溫長(zhǎng)鏈聚合油脂)安裝，安裝時(shí)不損壞管路?，F(xiàn)場(chǎng)開(kāi)孔插入式超聲流量計(jì)。(4)換能器與流體是否接觸:接觸式(插入式)超聲流量計(jì)，特點(diǎn):可不停產(chǎn)安裝和維護(hù)。非接觸式(外夾式)超聲流量計(jì)。(5)被測(cè)流體的性質(zhì):液體超聲流量計(jì);氣體超聲流量計(jì)。(6)換能器聲道的數(shù)目:單聲道超聲流量計(jì);兩聲道超聲流量計(jì);多聲道超聲流量計(jì)(3聲道以上，含3聲道)。應(yīng)用在石化行業(yè)的特殊環(huán)境中，需要堅(jiān)固耐用的設(shè)計(jì)以及防爆認(rèn)證;用戶(hù)對(duì)直管設(shè)計(jì)的科氏流量計(jì)的需求等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="插入式渦旋流量計(jì)生產(chǎn)廠家,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521478173828/3580503.png"></div><p> 渦街流量計(jì)安裝對(duì)直管段的要求：正確地選擇安裝點(diǎn)和正確安裝流量計(jì)都是非常重要的環(huán)節(jié)，若安裝環(huán)節(jié)失誤輕者影響測(cè)量精度，重者會(huì)影響流量計(jì)的使用壽命，甚至?xí)p壞流量計(jì)。渦街流量計(jì)安裝對(duì)直管段的要求是非常重要的。它的詳細(xì)要求如***量計(jì)對(duì)安裝點(diǎn)上的上下游直管段一定的要求，否則會(huì)影響測(cè)量精度。若流量計(jì)安裝點(diǎn)上的上游有漸縮管，流量計(jì)上游應(yīng)有不小于15D(D為管道直徑)的等徑直管段，下游應(yīng)有不小于5D的等徑直管段。若流量計(jì)安裝點(diǎn)上的上游有漸擴(kuò)管，流量計(jì)上游應(yīng)有不小于18D(D為管道直徑)的等徑直管段，下游應(yīng)有不小于5D的等徑直管段若流量計(jì)安裝點(diǎn)上游有90°彎頭或下行接頭，流量計(jì)上游應(yīng)有不小于**的等徑直管段，下游應(yīng)有不小于5D的等徑直管段。若流量計(jì)安裝點(diǎn)上游在同一平面上有90°彎頭，流量計(jì)上游應(yīng)有不小于25D的等徑直管段，下游應(yīng)有不小于5D的等徑直管段。流量調(diào)節(jié)閥或壓力調(diào)節(jié)閥盡量安裝在流量計(jì)下游5D以遠(yuǎn)處，若必須安裝在流量計(jì)的上游，流量計(jì)上游應(yīng)有不小于25D的等徑直管段，下游應(yīng)有不小于5D的等徑直管段。流量計(jì)上游若有活塞式或柱塞式泵，活塞式或羅茨式風(fēng)機(jī)、壓縮機(jī)，流量計(jì)上游應(yīng)有不小于25D的等徑直管段，下游應(yīng)有不小于5D的等徑直管段。流量計(jì)是測(cè)量液體、氣體流量必不可少的儀表。衛(wèi)生型渦旋流量計(jì)特點(diǎn)</p><p style="text-indent:25px">為使電磁流量計(jì)的傳感器小型化和改善信噪比而出現(xiàn)用非均勻磁場(chǎng)和低頻勵(lì)磁方式的電磁流量計(jì)。插入式渦旋流量計(jì)生產(chǎn)廠家</p><p> 各種超聲流量計(jì)已廣用于工業(yè)生產(chǎn)、商業(yè)計(jì)量和水利檢測(cè)等方面，如:在市政行業(yè)的原水、自來(lái)水、中水、污水的計(jì)量中，超聲流量計(jì)具有大量程比、無(wú)壓損的特點(diǎn)，在保證測(cè)量準(zhǔn)確度的同時(shí)提高了管網(wǎng)的輸水效率;在水利水電行業(yè)的輸水管道、渠道、泵站、電站的流量計(jì)量中，超聲流量計(jì)具有大口徑、現(xiàn)場(chǎng)安裝、在線標(biāo)定的特點(diǎn)，使準(zhǔn)確測(cè)量成為可能。同時(shí)通過(guò)對(duì)水泵、水輪機(jī)單泵、單機(jī)的計(jì)量來(lái)實(shí)現(xiàn)設(shè)備優(yōu)化、經(jīng)濟(jì)運(yùn)行的目的;在工業(yè)冷卻循環(huán)水的計(jì)量中，超聲流量計(jì)實(shí)現(xiàn)了在線不斷流帶壓安裝和在線標(biāo)定;在商業(yè)計(jì)量方面多聲道超聲流量計(jì)已達(dá)到優(yōu)于(示值誤差)。(1)傳播時(shí)間法應(yīng)用于清潔、單相液體和氣體。典型應(yīng)用有工廠排放液、:怪液、液化天然氣等;(2)氣體應(yīng)用方面在高壓天然氣領(lǐng)域已有使用良好的經(jīng)驗(yàn);(3)多普勒法適用于異相含量不太高的雙相流體,例如:未處理污水、工廠排放液、臟流程液;通常不適用于非常清潔的液體。插入式渦旋流量計(jì)生產(chǎn)廠家</p><p style="text-indent:25px">西安倫騫電器設(shè)備有限責(zé)任公司是一家智能儀器儀表銷(xiāo)售：網(wǎng)絡(luò)設(shè)備銷(xiāo)售；安防設(shè)備銷(xiāo)售；閥門(mén)和旋塞銷(xiāo)售；計(jì)算機(jī)軟及軸助設(shè)備零售；環(huán)境監(jiān)測(cè)**儀器銷(xiāo)售；電氣設(shè)備銷(xiāo)售；機(jī)械設(shè)備銷(xiāo)售；電子元器件與機(jī)電組件設(shè)備銷(xiāo)售；電子產(chǎn)品銷(xiāo)售；終端計(jì)量設(shè)備銷(xiāo)售；終端測(cè)試設(shè)備銷(xiāo)售；供應(yīng)用儀器儀表銷(xiāo)售；電子**設(shè)備銷(xiāo)售；技術(shù)開(kāi)發(fā)；普通機(jī)械設(shè)備安裝服務(wù)；智能儀器儀表制造：儀器儀表修理；儀器儀表制造；環(huán)境監(jiān)測(cè)**儀器儀表制造；其他通用儀器制造；電子測(cè)量?jī)x器化工。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)。公司自創(chuàng)立以來(lái)，投身于雷達(dá)料位計(jì)，雷達(dá)物位計(jì)，壓力變送器，溫度變送器，是儀器儀表的主力軍。西安倫騫電器不斷開(kāi)拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶(hù)創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。西安倫騫電器創(chuàng)始人付海飛，始終關(guān)注客戶(hù)，創(chuàng)新科技，竭誠(chéng)為客戶(hù)提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1138122.html</p></div></div></div></div></div><div id="rvhzr9f" class="page-right twoColRt"><div 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