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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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>紹興液體流量計銷售廠家,流量計</p><p><span>***更新：</span>2020-12-24 00:22:08</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="jn7kliu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">南儀測控技術(shù)(上海)有限公司</a></p><p><span>聯(lián)系人：</span>桂經(jīng)理</p><p><span>郵箱: </span>704766500@qq.com</p><p><span>電話: </span>17802114401</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>https://www.nanicontrol.com</p><p><span>手機: </span>021-61559357</p><p><span>地址: </span>滬閔路1871號9甲幢4樓407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="vurjg2y" class="page-proshow02"><p class="title">詳細說明</p><div id="mgnkmov" class="box"><p><p style="text-indent:25px">電磁流量計噪音分析：流動體摩擦襯里和電極，流動體中發(fā)生的正離子和負離子從電解液中分離出來。內(nèi)襯和電極表面越粗糙，游離離子濃度越高。一部分離子在電極信號電場的作用較向電極移動，從而形成噪聲電壓，紹興液體流量計銷售廠家，這就是流動動噪聲。在低電導(dǎo)率測試中，流動動噪聲的影響是很明顯的。流動場噪聲與外電場強度有關(guān)，當(dāng)流動速較較大時，紹興液體流量計銷售廠家，感應(yīng)信號越較大，噪聲越較大，輸出的穩(wěn)定性越差。流動體的電導(dǎo)率和pH值的急劇變化也會形成流動動噪聲，上游流量計加藥性能的測量不穩(wěn)定性就是一例。其原因是不同介質(zhì)在不均勻混合時，流動體中很容易分離出正負離子，部分離子會受到電極信號電場的影響向電極移動，產(chǎn)生流動動噪聲電壓，導(dǎo)致輸出不穩(wěn)定。由于在襯里和電極附近的高流動速流動流動體的層流動邊界層厚度變得非常薄，因此襯里和電極的粗糙度值都超過了流動速層邊界層的厚度，流動體沖擊這部分的粗糙度值，就會發(fā)生流動速擴散和突變。部分流動速分量與測量管中心軸向相同(或相反)，受信號權(quán)函數(shù)的影響，對電極信號產(chǎn)生較較大的正向影響，紹興液體流量計銷售廠家，這就是較高流動速噪聲。法蘭連接型渦輪流量計。傳感器以法蘭形式與管道連接。紹興液體流量計銷售廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興液體流量計銷售廠家,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142327474870/5073743.png"></div><p style="text-indent:25px">電磁流量計按故障外界源頭分析來自3個方面：①管道系統(tǒng)和安裝等方面引起的；②環(huán)境方面引起的；③流體方面引起的。1、管道系統(tǒng)和安裝等方面：通常是電磁流量傳感器安裝位置不正確引起的故障，常見的例如將流量傳感器安裝在易積聚潴留氣體的管網(wǎng)高點；流量傳感器后無背壓，液體逕直排人大氣，形成其測量管內(nèi)非滿管；裝在自上向的垂直管道上，可能出現(xiàn)排空等。2、環(huán)境方面：主要是管道雜散電流干擾，空間電磁波干擾，大電機磁場干擾等。管道雜散電流干擾通常采取良好單獨接地保護可獲得滿意測量，但如遇管道有強雜散電流亦不一定能克服，須采取流量傳感器與管道緣絕的措施。南京高精度流量計哪家實惠功能性干擾源是指電磁設(shè)備實現(xiàn)了功能過程當(dāng)中所造成對其它設(shè)備的直接干擾。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興液體流量計銷售廠家,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142465523533/8497638.png"></div><p style="text-indent:25px">塔型電磁流量計：1，塔型電磁流量計是把測量管和連接法蘭整體焊接在一起的一個產(chǎn)品，雖然D值的要求也很嚴(yán)格，但是這個工作是由儀表制造廠家來做的。測量管是在制造廠進行準(zhǔn)確測量或者進行機械加工來達到所要求數(shù)值，根本不需要用戶再為管道的D值是否精確而為難，用戶只要把管道的壁厚系列提供給儀表廠以便選配同系列的測量管就可以。由于塔形電磁流量計可以把D值控制的非常精確，從而避免了孔板等差壓式儀表因D值不準(zhǔn)確而帶來的計算上的誤差。2，塔型電磁流量計性能：具有良好的準(zhǔn)確度（≤0.5%）和重復(fù)性（≤0.1%）。具有較寬的量程比（10：1～15：1）。對流動體有整流動功能，因此只需要極短的直管段（前1～3D后0～1D）。具有自清潔功能，可測臟污和易結(jié)垢流動體。節(jié)流動件關(guān)鍵（不含任何電子部件），因此耐高溫、高壓、耐腐蝕、不怕震動等?？蓽y流動體的種類非常普遍（液、氣、蒸汽），流量范圍寬（從微小流量～到較大流量），適應(yīng)的管道（DN15～DN3000）。</p><p style="text-indent:25px">一體化孔板流量計使用注意事項有哪些？一體化孔板流量計是集流量、溫度、壓力檢測功能于一體，并能進行溫度、壓力自動補償?shù)男乱淮髁坑嫞捎孟冗M的微機技術(shù)與微功耗新技術(shù)，功能強，結(jié)構(gòu)緊湊，操作簡單，使用方便。一體化孔板流量計由傳感、變送、運算顯示三較大部分主要適用于飽和蒸汽、過熱蒸汽、壓縮空氣、混和非易燃易爆氣體和熱水的工業(yè)計量，對上述流動體的流量測量、顯示、計量及生產(chǎn)過程的在線自動控制等用途均可采用。投入運行重要的注意事項就是一定要在導(dǎo)壓管內(nèi)灌滿水或注入的高溫蒸汽冷卻后才能啟動運。一體化孔板流量計節(jié)流動件前后的直管段必須是直的，安裝節(jié)流動件用得直管段應(yīng)該是光滑的，如不光滑，流量系數(shù)應(yīng)乘以粗糙度修正稀疏。節(jié)流動件前后要求一段足夠長的直管段，節(jié)流動件上游側(cè)為敞開空間或直徑≥2D較大容器時，則敞開空間或較大容器與節(jié)流動件之間的直管長不得小于30D(15D)。若節(jié)流動件和敞開空間或較大容器之間尚有其它局部阻力件時，則除在節(jié)流動件與局部阻力件之間設(shè)有附合規(guī)定的小直管段長1外，從敞開空間到節(jié)流動件之間的直管段總長也不得小于30D(15D)。螺紋連接型渦輪流量計。傳感器以螺紋方式與管道連接。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興液體流量計銷售廠家,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142264749444/6461272.png"></div><p style="text-indent:25px">一體化渦街流量計產(chǎn)業(yè)發(fā)展的重要標(biāo)志及發(fā)展機：十二五期間一體化渦街流量計產(chǎn)業(yè)將充滿機遇、挑戰(zhàn)和活力。我國一體化渦街流量計生產(chǎn)企業(yè)，部分骨干企業(yè)采用了壓力機，并相應(yīng)配以操作機械手和多工位熱成形壓力機外，使產(chǎn)業(yè)精度，壽命，鍛件質(zhì)量穩(wěn)定性均受影響。因而一體化渦街流量計產(chǎn)業(yè)也面臨一個國內(nèi)由于儀器產(chǎn)業(yè)的發(fā)展，國際上全球采購的良好發(fā)展機遇。一體化渦街流量計產(chǎn)業(yè)存在行業(yè)概念不清，學(xué)術(shù)概念與行業(yè)概念相混淆的現(xiàn)象。隨著儀器儀表相關(guān)產(chǎn)業(yè)的發(fā)展，儀器儀表的產(chǎn)業(yè)內(nèi)行業(yè)概念越來越清晰，這是一體化渦街流量計產(chǎn)業(yè)發(fā)展的一個重要標(biāo)志。一體化渦街流量計生產(chǎn)企業(yè)加較大企業(yè)的技改，較大力采用打擊能量逐步向手工操作向自動化操作過渡。不斷地加以改造。使我國的一體化渦街流量計產(chǎn)業(yè)在已具備相當(dāng)產(chǎn)能規(guī)模的基礎(chǔ)上，提升整體競爭能力。十二五期間中我國儀器儀表行業(yè)必須注重企業(yè)家、技術(shù)人員和工人隊伍的建設(shè)，倡導(dǎo)學(xué)習(xí)和改造；注重一體化渦街流量計設(shè)備的自制能力建設(shè)；注重阻止低檔次重復(fù)建設(shè)；注重基礎(chǔ)理論技術(shù)和實際應(yīng)用技術(shù)的研究和開發(fā)。文丘里管由一圓形丈量管和置入丈量管內(nèi)并與丈量管同軸的特型芯體所構(gòu)成。南京高精度流量計哪家實惠</p><p style="text-indent:25px">電磁流量計如果是供電24V就要在工業(yè)現(xiàn)場不允許使用交流電。紹興液體流量計銷售廠家</p><p style="text-indent:25px">電磁流量計測量氯堿的可行性分析報告：電磁流量計測量導(dǎo)電液體流量是非常有優(yōu)勢的，那么氯堿行業(yè)是否也可以使用電磁流量計來進行流量測量呢？氯堿行業(yè)主要計量鹽水和燒堿，兩者具有共同的特性：1、鹽水的成分較復(fù)雜，有時呈酸性，有時呈堿性，并可能由于離子膜脫氯不凈，而含有游離氯，兩者都具有較強的腐蝕性。2、兩者都是導(dǎo)電介質(zhì)。3、當(dāng)氣溫較低時，鹽水管道都會出現(xiàn)結(jié)鹽現(xiàn)象，隔閡燒堿也會在保送過程中隨著溫度降低而析出鹽；離子膜燒堿32％在3~C左右就會結(jié)晶；在管道長并間歇保送時，也會出現(xiàn)32％燒堿結(jié)晶而使管道梗塞，所以兩種被測介質(zhì)都會呈現(xiàn)含有固體顆?，F(xiàn)象。4、兩種介質(zhì)的溫度都在100oC以較。分析被測介質(zhì)的特性及電磁流量計的優(yōu)點，可以看出電磁流量計在氯堿計量方面十分適用。雖然電磁流量計的價錢較貴，但其精度高，維護量小，使用壽命長，有較高的性價比。差壓式流量計、渦輪流量計、橢圓齒輪流量計等都受流動體工作狀態(tài)以及流動體密度、粘度等參數(shù)的影響而使測量誤差增較大。由于測量元件受固體顆粒的磨損而使壽命降低，甚至堵塞無法使用，腐蝕性更無法解決。紹興液體流量計銷售廠家</p><p style="text-indent:25px">南儀測控技術(shù)(上海)有限公司主要經(jīng)營范圍是五金、工具，擁有一支專業(yè)技術(shù)團隊和良好的市場口碑。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下壓力變送器，溫度傳感器，液位計，流量計深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在五金、工具深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造五金、工具良好品牌。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: 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