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clearfix"><h1>河北液體渦旋流量計(jì)廠家貼心服務(wù) 西安倫騫電器設(shè)備供應(yīng)</h1><div id="yg3shyp" class="proBig"><div id="3qh882m" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332519894707031/5463.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="w37t393" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332519894707031/5463.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8a83iu7" 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>河北液體渦旋流量計(jì)廠家,流量計(jì)</p><p><span>***更新：</span>2020-11-28 00:25:24</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="hclhz3z" 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="bpm3iul" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="j2ofwfg" class="box"><p><p> 超聲波液位計(jì)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(jì)信號(hào)線受動(dòng)力線上強(qiáng)電壓、大電流，河北液體渦旋流量計(jì)廠家、強(qiáng)電磁的干擾。信號(hào)線單獨(dú)走一趟穿線管，遠(yuǎn)離動(dòng)力線、照明線，分開布線； </p> <p> 2、做好信號(hào)屏蔽層，防止信號(hào)受干擾； </p> <p> 3、為防止信號(hào)線接觸不良，在信號(hào)線中間盡量不留接頭，接線端子壓接處不能有任何松動(dòng)，不然接觸電阻會(huì)較大。有接頭的需要用烙鐵焊接信號(hào)線接頭，減少故障隱患； </p> <p> 4、為避免超聲波液位計(jì)信號(hào)線受潮，信號(hào)線走纜溝時(shí)，需架在支架上。信號(hào)線尤其接頭處受水浸泡發(fā)潮，會(huì)造成儀表信號(hào)紊亂； </p> <p> 5、調(diào)節(jié)超聲波液位計(jì)的換能器，表面垂直正對(duì)著所測(cè)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(guò)遠(yuǎn)時(shí)，探頭接收的信號(hào)太弱，無(wú)法和噪聲信號(hào)區(qū)分，過(guò)近時(shí)，進(jìn)入探頭的盲區(qū)，河北液體渦旋流量計(jì)廠家，則無(wú)法分辨，河北液體渦旋流量計(jì)廠家。流量計(jì)又分為有差壓式流量計(jì)、容積流量計(jì)、電磁流量計(jì)、超聲波流量計(jì)、渦輪流量計(jì)和渦街流量計(jì)等等。河北液體渦旋流量計(jì)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北液體渦旋流量計(jì)廠家,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332519894707031/5463.png"></div><p> 液體流量計(jì)的正確使用步驟:在使用壓力傳感器前，對(duì)其進(jìn)行性能測(cè)試。將它接上透明的水管，用水柱高坐壓力，用高靈敏度數(shù)字萬(wàn)用表測(cè)量電壓，不足之處是在安裝時(shí)需要一定直管段，且普通型對(duì)于振動(dòng)和高溫沒(méi)有很好的解決辦法。渦街有壓電式和電容式，后者在耐溫和耐振動(dòng)方面有優(yōu)勢(shì)，但價(jià)格較貴，一般用于過(guò)熱蒸汽的測(cè)量。只要能傳播聲音的流體均可以用液體流量計(jì);超聲波流量計(jì)可以測(cè)量高粘度液體、非導(dǎo)電性液體或氣體的流量，其測(cè)量流速的原理是:超聲波在流體中的傳播速度會(huì)隨被測(cè)流體流速而變化。容積式流量計(jì)容積式流量計(jì)是通過(guò)測(cè)定殼體和轉(zhuǎn)子之間形成的計(jì)量容積來(lái)測(cè)量流體的體積流量。根據(jù)轉(zhuǎn)子的結(jié)構(gòu)形式，容積式流量計(jì)有腰輪式，刮板式、橢圓齒輪式等。隨著工業(yè)發(fā)展對(duì)流量計(jì)量要求的不斷提高，液體流量計(jì)在工業(yè)測(cè)量中的地位已經(jīng)部分地被先進(jìn)的、高精度的、便利的流量?jī)x表所取代。液體流量計(jì)基于法拉第電磁感應(yīng)原理研制出的一種測(cè)量導(dǎo)電液體體積流量的儀表。又稱轉(zhuǎn)子流量計(jì)，是變面積式流量計(jì)的一種，在一根由下向上擴(kuò)大的垂直錐管中，圓形橫截面的浮子的重力是由液體動(dòng)力承受的。浮子可以在錐管內(nèi)自由地上升和下降。在流速和浮力作用下上下運(yùn)動(dòng)與浮子重量平衡后。河北液體渦旋流量計(jì)廠家在工業(yè)現(xiàn)場(chǎng)，測(cè)量流體流量的儀表統(tǒng)稱為流量計(jì)或流量表。是工業(yè)測(cè)量中重要的儀表之一。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北液體渦旋流量計(jì)廠家,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521160000000/9536736.png"></div><p> 感應(yīng)式電磁流量計(jì) 在被測(cè)流體溫度過(guò)高或?qū)﹄姌O有強(qiáng)烈腐蝕作用等情況下，可采用感應(yīng)式電磁流量計(jì)。A、B為匝數(shù)相等的兩個(gè)交流激磁繞組，繞組之間是串聯(lián)的，但各自的電流方向相反。當(dāng)流體靜止時(shí)，通過(guò)感應(yīng)線圈C的合成磁通為零，故線圈中沒(méi)有感生的交變電動(dòng)勢(shì)。流體流動(dòng)時(shí)感應(yīng)線圈中就產(chǎn)生交變電動(dòng)勢(shì)，其大小與流速成正比。基于這一原理，還有很多改型方案。例如用一個(gè)激磁繞組，而在它的對(duì)稱的兩側(cè)各安置一方向相反的感應(yīng)線圈并串聯(lián)起來(lái)流體流動(dòng)時(shí)，磁力線向流動(dòng)方向移動(dòng)，使兩邊感應(yīng)線圈中的產(chǎn)生電動(dòng)勢(shì)不為零，由此可間接表示出流量的大小。電磁流量計(jì)的管道內(nèi)沒(méi)有其他部件，所以除用于測(cè)量導(dǎo)電流體的流量外，還可用于測(cè)量各種粘度的不導(dǎo)電液體（其中加入易電離物質(zhì)）的流量。在核能工業(yè)中經(jīng)常使用電磁流量計(jì)。 </p><p> 一體型電磁流量計(jì)是根據(jù)法拉第電磁感應(yīng)定律制定，用來(lái)測(cè)量導(dǎo)電流體的體積流量。由于獨(dú)特的特點(diǎn)已廣地應(yīng)用于工業(yè)上各種導(dǎo)電液體的測(cè)量。主要用于化工、造紙、食品、紡織、冶金、環(huán)保、給排水等行業(yè)，與計(jì)算機(jī)配套可實(shí)現(xiàn)系統(tǒng)控制。1．電磁流量計(jì)沒(méi)有可動(dòng)部件，也沒(méi)有阻流件，不會(huì)引起壓力損失，同時(shí)也不會(huì)引起磨損，阻塞等問(wèn)題。2．電磁流量計(jì)是一體積流量測(cè)量?jī)x表，在測(cè)量過(guò)程中不受被測(cè)介質(zhì)的溫度、粘度、密度以及導(dǎo)電率（在一定范圍內(nèi)）的影響。3．電磁流量計(jì)的量程范圍寬，可達(dá)1：100。此外，電磁流量計(jì)只與被測(cè)介質(zhì)的平均流速成正比，而與軸對(duì)稱的流動(dòng)狀態(tài)（層流或紊流）無(wú)關(guān)。4．電磁流量計(jì)無(wú)機(jī)械慣性，反應(yīng)靈敏，可以測(cè)量瞬時(shí)脈動(dòng)流量，而且線性好，因此可以將測(cè)量信號(hào)直接用轉(zhuǎn)換器線性的轉(zhuǎn)換成標(biāo)準(zhǔn)信號(hào)輸出。LD-T型可就地指示，LD型可遠(yuǎn)距離傳送。為了使電磁流量計(jì)的傳感小型化和改善信噪比，出現(xiàn)了用非均勻磁場(chǎng)和低頻勵(lì)磁方式的電磁流量計(jì)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北液體渦旋流量計(jì)廠家,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520330341797/7183549.png"></div><p> （1）渦街流量變送器的選擇 </p> <p> 在飽和蒸汽測(cè)量中采用VA型壓電式渦街流量變送器，由于渦街流量計(jì)量程范圍寬，因此，在實(shí)際應(yīng)用中，一般插入式渦街流量計(jì)主要考慮測(cè)量飽和蒸汽的流量不得低于渦街流量計(jì)的下限，也就是說(shuō)必須滿足流體流速不得低于5m/s。根據(jù)用汽量的大小選用不同口徑的渦街流量變送器，而不能以現(xiàn)有的工藝管道口徑來(lái)選擇變送器口徑。 </p> <p> （2）壓力補(bǔ)償壓力變送器的選擇 </p> <p> 由于飽和蒸汽管路長(zhǎng)，壓力波動(dòng)較大，必須采用壓力補(bǔ)償，考慮到壓力、溫度及密度的對(duì)應(yīng)關(guān)系，測(cè)量中只采用壓力補(bǔ)償即可，由于明通公司管道飽和蒸汽壓力在0.3－0.7MPa范圍，壓力變送器的量程選擇1MPa即可。 </p> <p> （3）顯示儀表選擇 </p> <p> 顯示儀表智能流量顯示儀，具有穩(wěn)壓補(bǔ)償、瞬時(shí)流量顯示和累積流量積算功能。浮子流量計(jì)使用于小管徑和低流速。常用儀表口徑40-50mm以下，zui小口徑做到1.5-4mm。河北液體渦旋流量計(jì)廠家</p><p style="text-indent:25px">有些就地指示型金屬管浮子流量計(jì)，只是將浮子位移通過(guò)磁耦合傳出，經(jīng)連桿凸輪等線性化機(jī)構(gòu)處理后就地指示。河北液體渦旋流量計(jì)廠家</p><p> 插入式電磁流量計(jì)安裝步驟：1.插入式電磁流量計(jì)要求用戶管道應(yīng)為水平設(shè)置，傳感器前至少有5DN、其后至少應(yīng)有3DN的直管段。流量調(diào)節(jié)閥應(yīng)位于傳感器下游3DN以外。管道應(yīng)明顯振動(dòng)，管道內(nèi)壁應(yīng)無(wú)明顯凹凸不平。2.先在管道測(cè)量點(diǎn)處正上方開一個(gè)Ф60-62mm的孔，要求圓孔四周邊緣光潔，無(wú)毛刺和氣割瘤疤等。3.將安裝件從傳感器上擰下來(lái)并可靠地焊接在上述開孔處，要求：使安裝件下端與管道內(nèi)面齊平并且保證不漏。4.松開傳感器的3個(gè)鎖緊螺釘將檢測(cè)桿及檢測(cè)頭整體抽出待后面安裝。（注意：用戶不得打開檢測(cè)頭與插入桿的連接）。5.在安裝件的上端螺紋處纏以麻絲鉛油或纏以四氟生膠帶后將球閥連同密封劑鎖緊機(jī)構(gòu)擰緊在上面。6.將檢測(cè)桿從上方慢慢地再插入進(jìn)去，將鎖緊螺母稍稍加力擰緊，壓下插入桿測(cè)量L2與記錄L2尺寸相同，安裝就完成了。河北液體渦旋流量計(jì)廠家</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2169289.html</p></div></div></div></div></div><div id="z3hovh2" class="page-right twoColRt"><div id="griacoa" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="87jq3ir" 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)" 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