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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="i12tktb" 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="tmtzm35" 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>插入式渦街流量計(jì)分類,流量計(jì)</p><p><span>***更新：</span>2020-12-11 11:21:09</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="dfbdsix" 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="jeyiidm" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="zolqeap" class="box"><p><p> 電磁流量計(jì)內(nèi)襯材料正確選用方法： </p> <p> 應(yīng)根據(jù)被測(cè)介質(zhì)的腐蝕性，磨損性和溫度來(lái)選擇內(nèi)襯材料： </p> <p> 一、天然橡膠（軟橡膠）：1、較好的彈性，耐磨性和扯斷力；2、耐一般的弱酸、弱堿的腐蝕；3、測(cè)水、污水。 </p> <p> 二、耐酸橡膠（硬橡膠）：可耐常溫下的鹽酸、醋酸、草酸、氨水、磷酸及50%的硫酸、氫氧化鈉、氫氧化鉀的腐蝕，但不耐強(qiáng)氧化劑的腐蝕；可測(cè)一般的酸、堿、鹽溶液。 </p> <p> 三、氯丁橡膠（Neoprene）：1、極好的彈性，高度的扯斷力，耐磨性能好；2、耐一般低濃度的酸堿、鹽溶液的腐蝕，但不耐氧化性介質(zhì)的腐蝕，且溫度要求<80℃；可測(cè)水、污水、泥漿和礦漿。 </p> <p> 四，插入式渦街流量計(jì)分類、聚胺脂橡膠（Polyurethane）：1、極好的耐磨性能；2、耐酸、堿性能差，溫度要求<40℃；測(cè)中性強(qiáng)磨損的煤漿、泥漿和礦漿。 </p> <p> 五、聚四氟乙烯（PTFE）：1、耐沸騰的鹽酸、硫酸，插入式渦街流量計(jì)分類、硝酸、王水、濃堿和各種有機(jī)溶劑；2、耐磨性能好，粘接性能差，溫度要求-80～+180℃；測(cè)濃度，插入式渦街流量計(jì)分類、濃堿強(qiáng)腐蝕性溶液及衛(wèi)生類介質(zhì)。直角型安裝方式金屬管浮子流量計(jì)典型結(jié)構(gòu)，通常適用于口徑15-40mm以上儀表。插入式渦街流量計(jì)分類</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="插入式渦街流量計(jì)分類,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332519894707031/5463.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)刻必須完全注滿介質(zhì)，不能在不滿管或空管的情況下正常工作。在介質(zhì)不滿管時(shí)，可采用抬高流量計(jì)后端出水管高度的方法使介質(zhì)滿管，避免不滿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。插入式渦街流量計(jì)分類金屬管浮子流量計(jì)是采用可變面積式測(cè)量原理，用于連續(xù)測(cè)量封閉管道中的液體和氣體的體積流量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="插入式渦街流量計(jì)分類,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520631328125/4056452.png"></div><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)特別是管路周圍環(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，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，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，使測(cè)量精度提高。 </p><p> 渦街流量計(jì)便是依據(jù)卡門(mén)旋渦原理進(jìn)行封閉管道流體流量測(cè)量的新型流量計(jì)。因其具有良好的介質(zhì)適應(yīng)能力，無(wú)需溫度壓力補(bǔ)償即可直接測(cè)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(cè)量標(biāo)況體積流量和質(zhì)量流量，是節(jié)流式流量計(jì)的理想替代產(chǎn)品。為提高渦街流量計(jì)的耐高溫及抗振動(dòng)性能，我公司新近開(kāi)發(fā)出了改進(jìn)型渦街流量傳感器，因其獨(dú)特的結(jié)構(gòu)和選材使該傳感器可在高溫（350℃）、強(qiáng)振動(dòng)（≤1g）的惡劣工況下使用。在實(shí)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(huì)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(wèn)題，通常采用在測(cè)量處縮徑提高測(cè)量處的流速，并選用較小口徑的儀表以利于儀表的測(cè)量，但是這種變徑方式必須在變徑管與儀表間有長(zhǎng)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，僅為工藝管內(nèi)徑的1/3，與渦街流量計(jì)作成一體，不僅不需要另外附加一段直管段，還可以降低對(duì)工藝管直管段的要求，安裝非常方便。分流型浮子流量計(jì)由裝載主管道上標(biāo)準(zhǔn)孔板和較小口徑浮子流量計(jì)組合而成，只要就地指示的場(chǎng)所，價(jià)格低廉。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="插入式渦街流量計(jì)分類,流量計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521160000000/9536736.png"></div><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(kāi)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(kāi)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(kāi)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(kāi)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。一體型儀表將孔板和浮子流量計(jì)組裝在短管段上，直接裝到待測(cè)管道，安裝方便。插入式渦街流量計(jì)分類</p><p style="text-indent:25px">隨著工業(yè)的發(fā)展，對(duì)流量測(cè)量的準(zhǔn)確度和范圍要求越來(lái)越高，為了適應(yīng)多種用途，各種類型的流量計(jì)相繼問(wèn)世。插入式渦街流量計(jì)分類</p><p style="text-indent:25px">流量計(jì)是由計(jì)量箱和裝在計(jì)量箱內(nèi)的一對(duì)橢圓齒輪，與上下蓋板構(gòu)成一個(gè)密封的初月形空腔(由于齒輪的轉(zhuǎn)動(dòng)，所以不是一定密封的)作為一次排量的計(jì)算單位。當(dāng)被測(cè)液體經(jīng)管道進(jìn)入流量計(jì)時(shí)，由于進(jìn)出口處產(chǎn)生的壓力差推動(dòng)一對(duì)齒輪連續(xù)旋轉(zhuǎn)，不斷地把經(jīng)初月形空腔計(jì)量后的液體輸送到出口處，橢圓齒輪的轉(zhuǎn)數(shù)與每次排量四倍的乘積即為被測(cè)液體流量的總量(原理見(jiàn)圖)。流量計(jì)主要是由殼體、計(jì)數(shù)器、橢圓齒輪和聯(lián)軸器(分磁性聯(lián)軸器和軸向聯(lián)軸器)等組成。插入式渦街流量計(jì)分類</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2361399.html</p></div></div></div></div></div><div id="ee7vvlg" class="page-right twoColRt"><div id="rdt1gfp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="elocgrw" 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" 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