徐州液體渦輪流量計(jì)銷售價(jià)格誠(chéng)信互利江蘇中徽測(cè)控儀表供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="電磁流量計(jì)接地的原因：電磁流量計(jì)內(nèi)的測(cè)量電極處于一個(gè)直流或交流電場(chǎng)內(nèi)，如果其環(huán)境不能有效地被屏蔽于一個(gè)無干擾的條件下，對(duì)測(cè)量有嚴(yán)重干擾。傳感器外殼接地與否，直接關(guān)系到測(cè)量的精度和穩(wěn)定性，接地導(dǎo)線必須不傳任何干擾電壓，"><meta name="keywords" content="徐州液體渦輪流量計(jì)銷售價(jià)格,流量計(jì)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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id="qyfmoqx" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312838117031250/1384984.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8dczwdf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312838117031250/1384984.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cfcph73" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>徐州液體渦輪流量計(jì)銷售價(jià)格,流量計(jì)</p><p><span>***更新：</span>2020-09-05 05:11:51</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="c8497bx" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測(cè)控儀表有限公司</a></p><p><span>聯(lián)系人：</span>姜經(jīng)理</p><p><span>郵箱: </span>jszhck@163.com</p><p><span>電話: </span>13770424300</p><p><span>傳真: </span>0517_86903470</p><p><span>網(wǎng)址: </span>http://www.jszhckyb.com</p><p><span>手機(jī): </span>0517-86900078</p><p><span>地址: </span>江蘇省淮安市金湖縣工業(yè)集中區(qū)A區(qū)3號(hào)</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="ljgdamd" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vl3dkbi" class="box"><p><p> 電磁流量計(jì)接地的原因： </p> <p> 電磁流量計(jì)內(nèi)的測(cè)量電極處于一個(gè)直流或交流電場(chǎng)內(nèi)，如果其環(huán)境不能有效地被屏蔽于一個(gè)無干擾的條件下，對(duì)測(cè)量有嚴(yán)重干擾。傳感器外殼接地與否，直接關(guān)系到測(cè)量的精度和穩(wěn)定性，接地導(dǎo)線必須不傳任何干擾電壓，因此電磁流量計(jì)要求有非?？煽康慕拥?，要做好接地屏蔽，否則就會(huì)產(chǎn)生干擾電流。<span style="font-size:12px;"> </span> </p> <p> 電磁流量計(jì)接地的好處： </p> <p> 若連接流量計(jì)的管道是(相對(duì)于被測(cè)介質(zhì))絕緣的則要用接地環(huán)，徐州液體渦輪流量計(jì)銷售價(jià)格，它的材質(zhì)應(yīng)根據(jù)被測(cè)介質(zhì)的腐蝕性選用。如果是聚四氟乙烯內(nèi)襯的測(cè)量傳感器，徐州液體渦輪流量計(jì)銷售價(jià)格，為了保測(cè)量傳感器能正常工作，徐州液體渦輪流量計(jì)銷售價(jià)格，要選用接地環(huán)。 </p> <p> 超聲波流量計(jì) 孔板流量計(jì)又稱為差壓式流量計(jì)，是由一次檢測(cè)件(節(jié)流件)和二次裝置(差壓變送器和流量顯示儀)組成；徐州液體渦輪流量計(jì)銷售價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州液體渦輪流量計(jì)銷售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312838117031250/1384984.png"></div><p> 熱式質(zhì)量流量計(jì)（恒溫差TMF） </p> <p> 優(yōu)點(diǎn): </p> <p> （1）球閥安裝，安裝拆卸方便。并可以帶壓安裝。 </p> <p> （2）基于金氏定律，直接測(cè)量質(zhì)量流量。測(cè)量值不受壓力和溫度影響。 </p> <p> （3）響應(yīng)迅速。 </p> <p> （4）量程范圍大，管道式安裝小可以測(cè)量8.8mm管道的流量，比較大可以測(cè)到30’’ </p> <p> （5）插入式類型的流量計(jì)，一支流量計(jì)可以用于測(cè)量多種管徑。 </p> <p> 缺點(diǎn): </p> <p> （1）精度不及其他類型流量計(jì)，一般為3％。 </p> <p> （2）適用范圍窄，只能用于測(cè)量干燥的非性的氣體，如壓縮空氣、氮?dú)?、氬氣及其他中性氣體。山東金屬轉(zhuǎn)子流量計(jì)銷售價(jià)格質(zhì)量流量計(jì)可以雙向使用。如果安裝方向與實(shí)際流向相反，修改變送器內(nèi)的流向組態(tài)即可。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州液體渦輪流量計(jì)銷售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837225146484/5269614.png"></div><p> 按流量計(jì)的結(jié)構(gòu)原理進(jìn)行分類。有容積式流量計(jì)、差壓式流量計(jì)、浮子流量計(jì)、渦輪流量計(jì)、電磁流量計(jì)、流體振蕩流量計(jì)中的渦街流量計(jì)、質(zhì)量流量計(jì)和插入式流量計(jì)。 </p> <p> 按測(cè)量對(duì)象劃分就有封閉管道和明渠兩大類;按測(cè)量目的又可分為總量測(cè)量和流量測(cè)量,其儀表分別稱作總量表和流量計(jì)。總量表測(cè)量一段時(shí)間內(nèi)流過管道的流量,是以短暫時(shí)間內(nèi)流過的總量除以該時(shí)間的商來表示,實(shí)際上流量計(jì)通常亦備有累積流量裝置,做總量表使用,而總量表亦備有流量發(fā)訊裝置。因此, 以嚴(yán)格意義來分流量計(jì)和總量表已無實(shí)際意義。 </p><p> 孔板流量計(jì)優(yōu)點(diǎn)： </p> <p> 標(biāo)準(zhǔn)節(jié)流件是全世界通用的，并得到了國(guó)際標(biāo)準(zhǔn)組織的認(rèn)可，無需實(shí)流校準(zhǔn)，即可投用，在流量計(jì)中亦是的。結(jié)構(gòu)易于復(fù)制，簡(jiǎn)單、牢固、性能穩(wěn)定可靠、價(jià)格低廉；應(yīng)用范圍廣，包括全部單相流體（液、氣、蒸汽）、部分混相流，一般生產(chǎn)過程的管徑、工作狀態(tài)(溫度、壓力)皆有產(chǎn)品。檢測(cè)件和差壓顯示儀表可分開不同廠家生產(chǎn)，便與專業(yè)化規(guī)模生產(chǎn)； </p> <p> 缺點(diǎn)： </p> <p> 測(cè)量的重復(fù)性、精確度在流量計(jì)中屬于中等水平，由于眾多因素的影響錯(cuò)綜復(fù)雜，精確度難于提高。范圍度窄，由于流量系數(shù)與雷諾數(shù)有關(guān),一般范圍度* 3∶1 ～ 4∶1。有較長(zhǎng)的直管段長(zhǎng)度要求，一般難于滿足。尤其對(duì)較大管徑，問題更加突出；壓力損失大；通常為維持一臺(tái)孔板流量計(jì)正常運(yùn)行，水泵需要附加動(dòng)力克服孔板的壓力損失。該附加耗電量可直接由電磁流量計(jì)的測(cè)量原理不依賴流量的特性，如果管路內(nèi)有一定的湍流與漩渦產(chǎn)生在非測(cè)量區(qū)內(nèi)則與測(cè)量無關(guān)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州液體渦輪流量計(jì)銷售價(jià)格,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837371396484/5220548.png"></div><p> 孔板流量計(jì)安裝要求1、孔板在安裝前應(yīng)檢查節(jié)流裝置編號(hào)和尺寸是否符合管道安裝位置的要求。2、新裝管路系統(tǒng)，必須在管道沖洗和掃線后再進(jìn)行孔板的安裝。3、注意孔板安裝方向“+”號(hào)應(yīng)該向著流束。4、孔板中心應(yīng)該和管道中心線相重合，同心度誤差不得超過(1/β-1)的數(shù)值。5、孔板在管道中安裝時(shí)應(yīng)保證其端面與管道軸線垂直、垂直度誤差不得超過±1°。6、夾緊孔板用的密封墊片(包括環(huán)室與法蘭、環(huán)室與孔板間)，在夾緊后，不得突入管道內(nèi)壁。7、孔板安裝處必須嚴(yán)密，不允許有泄漏現(xiàn)象存在。因此，安裝工作必須在管道試壓前進(jìn)行。8、導(dǎo)壓管應(yīng)垂直或傾斜敷設(shè)，其傾度不得小于1:12。粘度較高的流體，其傾斜度還應(yīng)增大。當(dāng)差壓訊號(hào)傳送距離大于3米時(shí)，導(dǎo)壓管應(yīng)分段傾斜，并在各高點(diǎn)和低點(diǎn)分別裝設(shè)集氣器和沉降器。9、為了避免差壓訊號(hào)傳送失真，正負(fù)導(dǎo)壓管應(yīng)盡量靠近敷設(shè)，嚴(yán)寒地區(qū)還應(yīng)采取防凍措施?？刹捎秒姛峄蛘魵獗?，但要防止被測(cè)介質(zhì)過熱汽化和在導(dǎo)壓管中產(chǎn)生氣體造成假差壓。10、孔板安裝在垂直主管道上時(shí)，取壓口位置，可在取壓裝置的平面上任意選擇。孔板安裝在水平或傾斜的主管道內(nèi)，取壓口位置如圖四所示。11、導(dǎo)壓管按被測(cè)介質(zhì)的性質(zhì)而選擇耐壓、耐腐蝕的材料制造。流量計(jì)傳感器上游也應(yīng)該有一定的直管段，一般在5D~10D。江蘇插入式巴類流量計(jì)多少錢</p><p style="text-indent:25px">標(biāo)準(zhǔn)孔板按常用取壓方式可分為角接取壓、法蘭取壓、徑距取壓三種類型。徐州液體渦輪流量計(jì)銷售價(jià)格</p><p> 流體流經(jīng)管道內(nèi)的節(jié)流裝置，在節(jié)流件附近造成局部收縮，流速增加，在其上、下游兩側(cè)產(chǎn)生靜壓力差。在已知有關(guān)參數(shù)的條件下，根據(jù)流動(dòng)連續(xù)性原理和伯努利方程可以推導(dǎo)出差壓與流量之間的關(guān)系而求得流量。 </p> <p> 孔板流量計(jì)的節(jié)流裝置結(jié)構(gòu)簡(jiǎn)單，且牢固、性能穩(wěn)定可靠，使用期限長(zhǎng)，價(jià)格較低，是工業(yè)中常用到的流量測(cè)量?jī)x表，整個(gè)加工過程采用國(guó)際標(biāo)準(zhǔn)，并經(jīng)過嚴(yán)格的校驗(yàn)檢測(cè)，用戶在購(gòu)買后可放心使用。該流量計(jì)應(yīng)用領(lǐng)域比較，所有的單相流速都可以測(cè)量，一部分混相流也可以使用該產(chǎn)品 </p> <p> 孔板流量計(jì)可測(cè)量管道中各種流體的流量，可測(cè)量的介質(zhì)有液體、氣體、蒸汽，被應(yīng)用于石油、化工、冶金、輕工、煤礦等工業(yè)部門。測(cè)量原理：充滿管道的流體，當(dāng)它們流經(jīng)管道內(nèi)的節(jié)流裝置時(shí)，流束將在節(jié)流裝置的節(jié)流件處形成局部收縮 </p> <p> 孔板流量計(jì)前后產(chǎn)生一個(gè)靜壓力差,該壓力差與流量存在著一定的函數(shù)關(guān)系,流量越大,壓力差就越大.差壓信號(hào)傳送給差壓變送器,轉(zhuǎn)換成4-20ma.DC模擬信號(hào)輸出,遠(yuǎn)轉(zhuǎn)給流量積算儀,實(shí)現(xiàn)流體流量的計(jì)量.質(zhì)量型流量計(jì),利用智能型差壓變送器,對(duì)工況溫/壓進(jìn)行自動(dòng)補(bǔ)償后,實(shí)現(xiàn)對(duì)流體質(zhì)量流量的測(cè)量徐州液體渦輪流量計(jì)銷售價(jià)格</p><p style="text-indent:25px">江蘇中徽測(cè)控儀表有限公司致力于儀器儀表，是一家貿(mào)易型公司。公司業(yè)務(wù)分為雷達(dá)料位計(jì)，雷達(dá)液位計(jì)，物位計(jì)，水位計(jì)等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于儀器儀表行業(yè)的發(fā)展。江蘇中徽測(cè)控儀表憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1161622.html</p></div></div></div></div></div><div id="3elxuw7" class="page-right twoColRt"><div id="aewognp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="yxu8mya" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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