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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ziur8oa" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521160000000/9536736.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xbdam2c" 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>陜西外縛式超聲波流量計(jì)推薦,流量計(jì)</p><p><span>***更新：</span>2020-12-09 01:13:34</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="3w8wwyk" 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="qpm898u" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="tctahyf" class="box"><p><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，陜西外縛式超聲波流量計(jì)推薦，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，陜西外縛式超聲波流量計(jì)推薦，下游應(yīng)有不小于5D的等徑直管段，陜西外縛式超聲波流量計(jì)推薦。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。口徑10mm以下玻璃管浮子流量計(jì)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。陜西外縛式超聲波流量計(jì)推薦</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西外縛式超聲波流量計(jì)推薦,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521160000000/9536736.png"></div><p> 1. 低維護(hù)量-市場(chǎng)上大多數(shù)的渦街流量計(jì)是采用取壓孔或插入式檢測(cè)元件感應(yīng)漩渦，一旦介質(zhì)中雜質(zhì)嵌入取壓孔或感應(yīng)元件與表體間的縫隙，則造成信號(hào)變?nèi)趸虿环€(wěn)定。良好的設(shè)計(jì)應(yīng)該是沒(méi)有容易堵塞的部分，從而降低維護(hù)量。 </p> <p> 2. 感應(yīng)元件在線更換-某些廠家的感應(yīng)元件與渦街發(fā)生體合二為一，看似簡(jiǎn)單的設(shè)計(jì)卻給實(shí)際使用帶來(lái)不便。因?yàn)橐坏└袘?yīng)部分失效，則需要將管道內(nèi)介質(zhì)排空泄壓后更換部件，影響生產(chǎn)。完善的設(shè)計(jì)應(yīng)該是將二者分開(kāi)，這樣就可以單獨(dú)更換感應(yīng)部分，而無(wú)需將介質(zhì)排空。 </p> <p> 3. 渦街流量計(jì)容易受到振動(dòng)的干擾，設(shè)計(jì)精良的渦街流量計(jì)可以通過(guò)硬件和數(shù)字信號(hào)處理將干擾排除，從而得到穩(wěn)定的信號(hào)。 </p> <p> 4. 渦街流量計(jì)安裝的一麻煩是前后需要很長(zhǎng)的直管段，有些廠家可以提供在流量計(jì)內(nèi)部縮徑的設(shè)計(jì)，降低了用戶專(zhuān)門(mén)維渦街流量計(jì)配備直管段的需求。陜西外縛式超聲波流量計(jì)推薦將浮子位移量轉(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)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西外縛式超聲波流量計(jì)推薦,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521478173828/3580503.png"></div><p style="text-indent:25px">流量計(jì)口徑與相連的管道口徑尺寸盡量相同，以減少流動(dòng)干擾，造成計(jì)量誤差；法蘭式和夾裝式流量計(jì)安裝時(shí)，應(yīng)注意法蘭之間密封墊片內(nèi)孔尺寸大于流量計(jì)和工藝管道通徑 6-8mm 及否同軸，以避免因其產(chǎn)生干擾流而影響計(jì)量精確度；插入式流量計(jì)安裝時(shí)，將短管及法蘭焊到管道上時(shí)必須確保流體正對(duì)著靶片受力面，焊接短管高度在100mm（從管道內(nèi)壁至法蘭密封面的距離）；對(duì)于新完工的工藝管道，應(yīng)先進(jìn)行初步吹掃后再安裝流量計(jì)；測(cè)量管外壁上箭頭所指方向?yàn)楸粶y(cè)介質(zhì)流向；流量計(jì)殼體必須可靠接地，若無(wú)接地條件應(yīng)向廠方說(shuō)明；流量計(jì)連接法蘭規(guī)格執(zhí)行GB/T系列標(biāo)準(zhǔn)，也可以根據(jù)用戶要求特殊加工（以出廠校驗(yàn)單為準(zhǔn)）。分別為前后閥和旁通閥；為流量計(jì)，L≥10D 和L≥5D分別為前后直管段長(zhǎng)度，D為管道公稱直徑。</p><p> 超聲波流量計(jì): </p> <p> 超聲波流量計(jì)也是比較常見(jiàn)的流量計(jì)，它的安裝在所有流量計(jì)的安裝中是zui簡(jiǎn)單便捷的，只要選擇一個(gè)合適的測(cè)量點(diǎn)，把測(cè)量點(diǎn)處的管道參數(shù)輸入到流量計(jì)中，然后把探頭固定在管道上即可。 </p> <p> 超聲波流量計(jì)的安裝主要遵循以下3點(diǎn)：1.選擇充滿流體的材質(zhì)均勻質(zhì)密、易于超聲波傳輸?shù)墓芏?，如垂直管段或水平管段?.安裝距離應(yīng)選擇上游大于10倍直管徑、下游大于5倍直管徑以內(nèi)無(wú)任何閥門(mén)、彎頭、變徑等均勻的直管段，安裝點(diǎn)應(yīng)充分遠(yuǎn)離閥門(mén)、泵、高壓電和變頻器等干擾源。3. 避免安裝在管道系統(tǒng)的比較高點(diǎn)或帶有自由出口的豎直管道上。4. 對(duì)于開(kāi)口或半滿管的管道，流量計(jì)應(yīng)安裝在U型管段處。由于分流管中置有限流小孔板，起到補(bǔ)償主孔板流量和差壓間平方根非線性關(guān)系，流量示值基本是線性的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西外縛式超聲波流量計(jì)推薦,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520922431641/5725344.png"></div><p> 實(shí)際上大部分浮子流量計(jì)同一儀表可用于液體也可用于氣體，結(jié)構(gòu)上是通用的。只是我國(guó)浮子流量計(jì)行業(yè)標(biāo)準(zhǔn)等規(guī)定流量上限Qmax必須符合（1，，，4或6）×10nL/h的要求（n為正負(fù)整數(shù)或零），為液體（以水為表示）設(shè)計(jì)的儀表用于氣體（以空氣為表示）時(shí)，不符合上述要求，只能為氣體另行設(shè)計(jì)浮子和錐管，就分成液體和氣體兩種系列。國(guó)外有些制造廠同一儀表并列液、氣兩種流體的流量范圍，當(dāng)然流量值就不可能都是圓整值；國(guó)內(nèi)有些型號(hào)儀表也采用本辦法。但是液體用和氣體用設(shè)計(jì)還是有區(qū)別的，例如氣體儀表浮子設(shè)計(jì)得較輕，防浮子振蕩跳動(dòng)的阻尼件結(jié)構(gòu)各異等。測(cè)量蒸汽只能用專(zhuān)門(mén)設(shè)計(jì)的金屬管浮子流量計(jì)或在標(biāo)準(zhǔn)型儀表上加裝附加構(gòu)件，例如增加帶散熱片的液體阻尼件，以減少浮子跳動(dòng)；與指示轉(zhuǎn)換部分連接處隔以散熱片。流量計(jì)中正在更多地引入電子技術(shù)，如數(shù)字信號(hào)處理(DSP)和微處理器，這使得流量計(jì)具備了自診斷功能。插入式電磁流量計(jì)廠家</p><p style="text-indent:25px">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)。陜西外縛式超聲波流量計(jì)推薦</p><p> 電磁流量計(jì)如何抗干擾？在測(cè)量紙漿/礦漿等大干擾信號(hào)應(yīng)用時(shí)，選用8707高信號(hào)流量管，可以提高信號(hào)強(qiáng)度智能電磁流量計(jì)AFLD是采用全智能化原理設(shè)計(jì)的，與原來(lái)國(guó)內(nèi)一些企業(yè)生產(chǎn)的老式或假式智能化的電磁流量計(jì)在計(jì)量精度，功能，可靠性以及使用壽命上有非常大區(qū)別。電磁流量計(jì)的使用壽命應(yīng)該是在10-20年以上，所以我們?cè)谠O(shè)計(jì)時(shí)就充分考慮廠到這一點(diǎn)，從傳感器到轉(zhuǎn)換器的每一個(gè)細(xì)節(jié)我們都非常仔細(xì)，從設(shè)計(jì)，選材，工藝，生產(chǎn)，測(cè)試等每一個(gè)環(huán)節(jié)我們都非常講究，自行設(shè)計(jì)定制國(guó)內(nèi)目前zui先進(jìn)的**與電磁流量計(jì)的生產(chǎn)流水線，切實(shí)保證產(chǎn)品的長(zhǎng)期質(zhì)量。插入式電磁流量計(jì)由插入式電磁流量傳感器(簡(jiǎn)稱傳感器）和電磁流量轉(zhuǎn)換器(簡(jiǎn)稱轉(zhuǎn)換器）配套組成(簡(jiǎn)稱流量計(jì))。是用來(lái)測(cè)量管道內(nèi)各種導(dǎo)電液體體積流量的儀表。插入式電磁流量計(jì)用來(lái)測(cè)量自來(lái)水、鋼鐵、石油、化工、電力、工業(yè)、水利等部門(mén)的導(dǎo)電流體流量，亦可測(cè)量酸、堿、鹽等腐蝕性導(dǎo)電液體。陜西外縛式超聲波流量計(jì)推薦</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2322297.html</p></div></div></div></div></div><div id="azbn3ah" class="page-right twoColRt"><div id="cwdfhz2" class="box01 margin10 clearfix"><h3><a 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