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id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="rdmycoa" class="twoCol"><div id="xbnuryq" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<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/">流量儀表</a>?<a href="http://www.cdcfah.com/cp/third-llyb_liuliangji/">流量計</a>?河北微小流量計價格來電咨詢西安倫騫電器設(shè)備供應(yīng)</p><div id="fzrif3f" class="leftbox clearfix"><h1>河北微小流量計價格來電咨詢西安倫騫電器設(shè)備供應(yīng)</h1><div id="p78cugx" class="proBig"><div id="l74vn7u" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521478173828/3580503.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="oasebt8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521478173828/3580503.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jn3pw7c" 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>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>河北微小流量計價格,流量計</p><p><span>***更新：</span>2020-12-26 05:15:58</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="uoqiug9" 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="dho389b" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="oyqskgf" class="box"><p><p> 超聲波液位計在日常工作中遇到故障該如何處理呢？ </p> <p> 1、為防止超聲波液位計信號線受動力線上強(qiáng)電壓，河北微小流量計價格、大電流、強(qiáng)電磁的干擾。信號線單獨走一趟穿線管，遠(yuǎn)離動力線、照明線，分開布線； </p> <p> 2、做好信號屏蔽層，防止信號受干擾； </p> <p> 3、為防止信號線接觸不良，河北微小流量計價格，在信號線中間盡量不留接頭，接線端子壓接處不能有任何松動，不然接觸電阻會較大。有接頭的需要用烙鐵焊接信號線接頭，減少故障隱患； </p> <p> 4，河北微小流量計價格、為避免超聲波液位計信號線受潮，信號線走纜溝時，需架在支架上。信號線尤其接頭處受水浸泡發(fā)潮，會造成儀表信號紊亂； </p> <p> 5、調(diào)節(jié)超聲波液位計的換能器，表面垂直正對著所測液面，水平度控制在2°； </p> <p> 6、調(diào)好超聲波探頭和液面的距離。過遠(yuǎn)時，探頭接收的信號太弱，無法和噪聲信號區(qū)分，過近時，進(jìn)入探頭的盲區(qū)，則無法分辨。口徑10mm以下玻璃管浮子流量計滿度流量的名義管徑，流速只在0.2-0.6m/s之間，甚至低于0.1m/s。河北微小流量計價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北微小流量計價格,流量計" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521478173828/3580503.png"></div><p> 差壓式孔板流量計是一款流量測量儀表，主要應(yīng)用于液體、氣體流量測量，像蒸汽流量測量就是一個典型的測量工況，蒸汽在流量測量的過程中，由于自身溫度較高，測量難度大一般的流量計都無法勝任，而差壓式孔板流量計就可以有效的解決。差壓式孔板流量計的應(yīng)用領(lǐng)域非常廣，測量精度可達(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、液體的流量測量領(lǐng)域應(yīng)用較多，差壓式孔板流量計還有一個優(yōu)勢就是安裝方便，并且也不需要維護(hù)。河北微小流量計價格20世紀(jì)的60年代以后，測量儀表開始向精密化、小型化等方向發(fā)展。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北微小流量計價格,流量計" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332519894707031/5463.png"></div><p> 時差法測量順逆?zhèn)鞑r傳播速度不同引起的時差計算被測流體速度。 </p> <p> 它采用兩個聲波發(fā)送器(SA和SB)和兩個聲波jieshouqi超聲流量計(RA和RB)。同一聲源的兩組聲波在SA與RA之間和SB與RB之間分別傳送。它們沿著管道安裝的位置與管道成θ角(一般θ=45°)(圖1)。由于向下游傳送的聲波被流體加速，而向上游傳送的聲波被延遲，它們之間的時間差與流速成正比。也可以發(fā)送正弦信號測量兩組聲波之間的相移或發(fā)送頻率信號測量頻率差來實現(xiàn)流速的測量。 </p> <p> 相位差法測量順逆?zhèn)鞑r傳播時由于時差引起的相位差計算速度。 </p> <p> 它的發(fā)送器沿垂直于管道的軸線發(fā)送一束聲波，由于流體流動的作用，聲波束向下游偏移一段距離。偏移距離與流速成正比。 </p><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(yán)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?，否則就會產(chǎn)生干擾電流。然而電磁流量計接地的好處：若連接污水流量計的管道是（相對于被測介質(zhì)）絕緣性的則要用接地環(huán)，它的材質(zhì)應(yīng)根據(jù)被測介質(zhì)的腐蝕性選用。如果是聚四氟乙烯的傳感器，為了保護(hù)聚四氟乙烯的翻邊不受損傷，要選用接地環(huán)。金屬管浮子流量計和口徑大于15mm的玻璃管浮子流量計稍高些，流速在0.5-1.5m/s之間。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北微小流量計價格,流量計" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520922431641/5725344.png"></div><p> 渦街流量計便是依據(jù)卡門旋渦原理進(jìn)行封閉管道流體流量測量的新型流量計。因其具有良好的介質(zhì)適應(yīng)能力，無需溫度壓力補(bǔ)償即可直接測量蒸汽、空氣、氣體、水、液體的工況體積流量，配備溫度、壓力傳感器可測量標(biāo)況體積流量和質(zhì)量流量，是節(jié)流式流量計的理想替代產(chǎn)品。為提高渦街流量計的耐高溫及抗振動性能，我公司新近開發(fā)出了改進(jìn)型渦街流量傳感器，因其獨特的結(jié)構(gòu)和選材使該傳感器可在高溫（350℃）、強(qiáng)振動（≤1g）的惡劣工況下使用。在實際應(yīng)用中，往往比較大流量遠(yuǎn)低于儀表的上限值，隨著負(fù)荷的變化，小流量又往往會低于儀表的下限值，儀表并非工作在它的比較好工作段，為了解決這一問題，通常采用在測量處縮徑提高測量處的流速，并選用較小口徑的儀表以利于儀表的測量，但是這種變徑方式必須在變徑管與儀表間有長度為15D以上的直管段進(jìn)行整流，使加工、安裝都不方便。我公司研制的縱斷面形狀為圓弧的LGZ變徑整流器，具有整流、提高流速及改變流速分布多重作用，其結(jié)構(gòu)尺寸小，*為工藝管內(nèi)徑的1/3，與渦街流量計作成一體，不*不需要另外附加一段直管段，還可以降低對工藝管直管段的要求，安裝非常方便。金屬管浮子流量計具有結(jié)構(gòu)堅固可靠、使用溫度范圍廣、精度高、價格便宜，能使用多種場合的流量測量等特點。豪華版壁掛式明渠流量計推薦廠家</p><p style="text-indent:25px">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)。河北微小流量計價格</p><p> 電磁流量計的結(jié)構(gòu)主要由磁路系統(tǒng)、測量導(dǎo)管、電極、外殼、襯里和轉(zhuǎn)換器等部分組成。 </p> <p> 電極：其作用是引出和被測量成正比的感應(yīng)電勢信號。電極一般用非導(dǎo)磁的不銹鋼制成，且被要求與襯里齊平，以便流體通過時不受阻礙。它的安裝位置宜在管道的垂直方向，以防止沉淀物堆積在其上面而影響測量精度。 </p> <p> 外殼：應(yīng)用鐵磁材料制成，是分配制度勵磁線圈的外罩，并隔離外磁場的干擾。 </p> <p> 襯里：在測量導(dǎo)管的內(nèi)側(cè)及法蘭密封面上，有一層完整的電絕緣襯里。它直接接觸被測液體，其作用是增加測量導(dǎo)管的耐腐蝕性，防止感應(yīng)電勢被金屬測量導(dǎo)管管壁短路。襯里材料多為耐腐蝕、耐高溫、耐磨的聚四氟乙烯塑料、陶瓷等。 </p> <p> 轉(zhuǎn)換器：由液體流動產(chǎn)生的感應(yīng)電勢信號十分微弱，受各種干擾因素的影響很大，轉(zhuǎn)換器的作用就是將感應(yīng)電勢信號放大并轉(zhuǎn)換成統(tǒng)一的標(biāo)準(zhǔn)信號并yizhi主要的干擾信號。其任務(wù)是把電極檢測到的感應(yīng)電勢信號Ex經(jīng)放大轉(zhuǎn)換成統(tǒng)一的標(biāo)準(zhǔn)直流信號。河北微小流量計價格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2567623.html</p></div></div></div></div></div><div id="pegn847" class="page-right twoColRt"><div id="dxogspt" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="etfm74l" 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) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div 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