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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="yxzevs3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520715556641/6274057.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8qpbyqx" 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>浮子流量計(jì)聯(lián)系方式,流量計(jì)</p><p><span>***更新：</span>2020-09-01 03:16:11</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="8oax7od" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="swyaxoq" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ke8qzgn" class="box"><p><p> 傳播速度差法超聲流量計(jì)測(cè)量精度已優(yōu)于，有的多聲道超聲流量計(jì)的精度已高達(dá)士。但由于早期的超聲流量計(jì)自身一般不帶標(biāo)準(zhǔn)管道而工業(yè)上所用管路又十分復(fù)雜，使得超聲流量計(jì)的測(cè)量精度大打折扣;另外，由于工業(yè)現(xiàn)場(chǎng)特別是管路周?chē)h(huán)境的多樣性和復(fù)雜性，降低了超聲流量計(jì)的可靠性和穩(wěn)定性。因此，如何根據(jù)特定的環(huán)境安裝調(diào)試超聲流量計(jì)，就成了超聲流量測(cè)量領(lǐng)域的一個(gè)重要課題。符合規(guī)范的正確安裝，可以更好地體現(xiàn)超聲流量計(jì)的精度、可靠性和穩(wěn)定性方面的優(yōu)勢(shì)，降低儀表的日常維護(hù)工作。以前盛行的外夾裝式超聲流量計(jì)使用方便靈活，然而現(xiàn)場(chǎng)應(yīng)用的實(shí)際側(cè)量精度，常因工作琉忽，換能器安裝距離及流通面積等測(cè)量的誤差而造成梢度下降。不正確的安裝甚至?xí)沟脙x表完全不能工作;因此，浮子流量計(jì)聯(lián)系方式，安裝換能器對(duì)于測(cè)量是非常重要環(huán)節(jié):國(guó)外競(jìng)相開(kāi)發(fā)出經(jīng)實(shí)流核準(zhǔn)的高精度帶測(cè)量管段的中小口徑超聲流量計(jì)，且用雙聲道或多聲道以改善單聲道側(cè)量平均流速的不確定影響量，降低了迎流流速分布影響的敏感度，浮子流量計(jì)聯(lián)系方式，減少了前后置直管段長(zhǎng)度的影響，消除了現(xiàn)場(chǎng)安裝換能器位置的影響，浮子流量計(jì)聯(lián)系方式，使測(cè)量精度提高。流量計(jì)在國(guó)民經(jīng)濟(jì)中的地位與作用更加明顯。浮子流量計(jì)聯(lián)系方式</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浮子流量計(jì)聯(lián)系方式,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520715556641/6274057.png"></div><p> 電磁流量計(jì)的結(jié)構(gòu)主要由磁路系統(tǒng)、測(cè)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(cè)量成正比的感應(yīng)電勢(shì)信號(hào)。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(guò)時(shí)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(cè)量精度。 </p> <p> 外殼：應(yīng)用鐵磁材料制成，是分配制度勵(lì)磁線(xiàn)圈的外罩，并隔離外磁場(chǎng)的干擾。 </p> <p> 襯里：在測(cè)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(cè)液體，其作用是增加測(cè)量導(dǎo)管的耐腐蝕性，防止感應(yīng)電勢(shì)被金屬測(cè)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(dòng)產(chǎn)生的感應(yīng)電勢(shì)信號(hào)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(shì)信號(hào)放大并轉(zhuǎn)換成統(tǒng)一的標(biāo)準(zhǔn)信號(hào)并yizhi主要的干擾信號(hào)。其任務(wù)是把電極檢測(cè)到的感應(yīng)電勢(shì)信號(hào)Ex經(jīng)放大轉(zhuǎn)換成統(tǒng)一的標(biāo)準(zhǔn)直流信號(hào)。河北智能靶式流量計(jì)金屬管浮子流量計(jì)具有結(jié)構(gòu)堅(jiān)固可靠、使用溫度范圍廣、精度高、價(jià)格便宜，能使用多種場(chǎng)合的流量測(cè)量等特點(diǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浮子流量計(jì)聯(lián)系方式,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332519835488281/573497.png"></div><p> 插入式電磁流量計(jì)安裝要求： </p> <p> 1．對(duì)直管段的要求: </p> <p> 入口/出口直管段：入口應(yīng)≥10×DN；出口應(yīng)≥5×DN。 </p> <p> 2．對(duì)接地點(diǎn)要求: </p> <p> 為了使儀表可靠的工作，提高測(cè)量精度，不受外界寄生電勢(shì)的干擾/傳感器應(yīng)有良好的接地，接地電阻小于10.（若金屬管道接地良好時(shí)，無(wú)須專(zhuān)設(shè)接地裝置）。 </p> <p> 3.對(duì)安裝位置要求: </p> <p> 插入電磁流量計(jì)根據(jù)現(xiàn)場(chǎng)管路情況不一，不加裝球閥的流量計(jì)，應(yīng)在不帶壓倒管路上安裝（即不帶壓安裝可選擇不加裝球閥的流量計(jì)），在管道上開(kāi)孔直徑50，準(zhǔn)備把連接焊管焊接在管道的開(kāi)孔上；對(duì)于要求不斷流裝卸或不允許介質(zhì)溢出的場(chǎng)合，須加裝球閥，即選擇帶球閥結(jié)構(gòu)的插入式電磁流量計(jì)；在管道上開(kāi)孔直徑50，準(zhǔn)備把連接焊管焊接在管道的開(kāi)孔上。 </p><p> 高溫型（80度至500度）、常溫型（-20度至70度）、低溫型（-20至-200度）流量計(jì)的安裝： </p> <p> a、常溫型、低溫型、高溫型流量計(jì)視不同工況采用水平、垂直或倒置式安裝（以出廠(chǎng)校驗(yàn)單為準(zhǔn)）；b、介質(zhì)工作溫度在300度以上時(shí)，用戶(hù)應(yīng)對(duì)流量計(jì)殼體采取隔熱措施防止熱輻射損壞表頭(表頭工作溫度為-30至70度)，同理工作溫度-100度以下的介質(zhì)，也要采取防凍措施；c、為保證流量計(jì)準(zhǔn)確計(jì)量，要求設(shè)置前后直管段；）d、為保證流量計(jì)在檢查及更換時(shí)不影響系統(tǒng)工作，應(yīng)盡量設(shè)置旁通閥（3）及切斷閥（1、2）；e、因工藝需要可采用垂直安裝，被測(cè)介質(zhì)流向可由下至上，也可由上至下，但訂購(gòu)時(shí)應(yīng)向供貨方說(shuō)明。金屬管浮子流量計(jì)和口徑大于15mm的玻璃管浮子流量計(jì)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="浮子流量計(jì)聯(lián)系方式,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520833798828/4923668.png"></div><p> 智能型電磁流量計(jì)傳感器在工藝管道上的安裝：1.智能型電磁流量計(jì)測(cè)堵管在任何時(shí)刻必須完全注滿(mǎn)介質(zhì)，不能在不滿(mǎn)管或空管的情況下正常工作。在介質(zhì)不滿(mǎn)管時(shí)，可采用抬高流量計(jì)后端出水管高度的方法使介質(zhì)滿(mǎn)管，避免不滿(mǎn)管及氣體附著在電極上。2.管道內(nèi)有真空會(huì)損壞流量計(jì)的內(nèi)襯，需特別注意。3.流動(dòng)的正方向應(yīng)與流量計(jì)上箭頭所指的正方向一致。4.智能型電磁流量計(jì)即可在直管道上安裝，也可以在水平或傾斜管道上安裝，但要求二電極的中心連線(xiàn)處于水平狀態(tài)。5.對(duì)于液、固兩相流體，zui好采用垂直安裝，使被測(cè)介質(zhì)自上而xialiu動(dòng)，可使流量計(jì)襯里磨損均勻，延長(zhǎng)使用壽命。6.流量計(jì)在管道法蘭附近確保有足夠的空間，以便安裝和維護(hù)。7.若測(cè)量管道有振動(dòng)，在流量計(jì)的兩側(cè)應(yīng)有固定的支座。8.測(cè)量介質(zhì)為重污染液體的，在旁路管道安裝流量計(jì)本體，不中斷工藝運(yùn)行，即可排空與清流。9.安裝聚四氟乙烯內(nèi)襯的流量計(jì)時(shí)，連接法蘭的螺栓應(yīng)注意均勻擰緊，否則容易壓壞聚四氟乙烯內(nèi)襯，zui好用力矩扳手。將浮子位移量轉(zhuǎn)換成電流或氣壓模擬量信號(hào)輸出，分別成為電遠(yuǎn)傳浮子流量計(jì)和氣遠(yuǎn)傳浮子流量計(jì)。浮子流量計(jì)聯(lián)系方式</p><p style="text-indent:25px">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。浮子流量計(jì)聯(lián)系方式</p><p> 按照外加磁場(chǎng)類(lèi)型的不同，電磁流量計(jì)主要有直流式和感應(yīng)式兩種。直流式電磁流量計(jì)的外加恒下磁場(chǎng)B垂直于管軸，C、D處裝有兩個(gè)電極，用來(lái)測(cè)量流體橫越磁場(chǎng)時(shí)所感生的電動(dòng)勢(shì)U。流量Q可用下式求出： </p> <p> Q=(1/K).(UA/Bd) </p> <p> 式中A為管道橫截面積；d為管道直徑；k為修正系數(shù)，用來(lái)修正導(dǎo)出公式時(shí)未計(jì)及的因素（如流量計(jì)管道內(nèi)的流速事實(shí)上并不均勻）的影響。在常的流量計(jì)中，k約為0.8，但對(duì)于特定尺寸、用于特定工況的電磁流量計(jì)，則要用容積法（一定時(shí)間內(nèi)流過(guò)的容積）標(biāo)定k值。磁場(chǎng)可由永久磁鐵產(chǎn)生，磁鐵材料一般是鋁－鎳－鈷合金。流量大時(shí)，因管徑較大，故采用無(wú)鐵芯激磁繞組，通以它常直流電流來(lái)產(chǎn)生一個(gè)近似均勻的磁場(chǎng)。浮子流量計(jì)聯(lián)系方式</p><p style="text-indent:25px">西安倫騫電器設(shè)備有限責(zé)任公司主要經(jīng)營(yíng)范圍是儀器儀表，擁有一支專(zhuān)業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。西安倫騫電器致力于為客戶(hù)提供良好的雷達(dá)料位計(jì)，雷達(dá)物位計(jì)，壓力變送器，溫度變送器，一切以用戶(hù)需求為中心，深受廣大客戶(hù)的歡迎。公司秉持誠(chéng)信為本的經(jīng)營(yíng)理念，在儀器儀表深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造儀器儀表良好品牌。西安倫騫電器憑借創(chuàng)新的產(chǎn)品、專(zhuān)業(yè)的服務(wù)、眾多的成功案例積累起來(lái)的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來(lái)源地址: 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