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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="osp9egn" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637312837071103515/2703394.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2c9jetk" 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>天津熱式氣體質(zhì)量流量計(jì)哪家好,流量計(jì)</p><p><span>***更新：</span>2020-08-31 05:13:41</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="sgd9npr" 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="en3bnpb" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="utqfri8" class="box"><p><p> 質(zhì)量流量計(jì) </p> <p> 由于流體的容積受溫度、壓力等參數(shù)的影響，用容積流量表示流量大小時(shí)需給出介質(zhì)的參數(shù)。在介質(zhì)參數(shù)不斷變化的情況下，往往難以達(dá)到這一要求，天津熱式氣體質(zhì)量流量計(jì)哪家好，而造成儀表顯示值失真。因此，質(zhì)量流量計(jì)就得到的應(yīng)用和重視，天津熱式氣體質(zhì)量流量計(jì)哪家好。質(zhì)量流量計(jì)分直接式和間接式兩種。直接式質(zhì)量流量計(jì)利用與質(zhì)量流量直接有關(guān)的原理進(jìn)行測(cè)量，目前常用的有量熱式、角動(dòng)量式，天津熱式氣體質(zhì)量流量計(jì)哪家好、振動(dòng)陀螺式、馬格努斯效應(yīng)式和科里奧利力式等質(zhì)量流量計(jì)。間接式質(zhì)量流量計(jì)是用密度計(jì)與容積流量直接相乘求得質(zhì)量流量的。質(zhì)量流量傳感器安裝應(yīng)使傳感器流向標(biāo)識(shí)與流體流向一致。并使箭頭指向與變送器內(nèi)部組態(tài)的流量方向一致。天津熱式氣體質(zhì)量流量計(jì)哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津熱式氣體質(zhì)量流量計(jì)哪家好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837071103515/2703394.png"></div><p> 孔板流量計(jì)分類 </p> <p> 1、標(biāo)準(zhǔn)孔板標(biāo)準(zhǔn)孔板是一類規(guī)格多的標(biāo)準(zhǔn)節(jié)流裝置，廣泛應(yīng)用于各種流體特別是氣體流量測(cè)量中，孔板的結(jié)構(gòu)因壓力、通徑、取壓方式的不同而不同。 </p> <p> 2、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。 </p> <p> 2、圓缺孔板 </p> <p> 取壓方式：法蘭取壓 </p> <p> 3、偏心孔板 </p> <p> 取壓方式：角接取壓 </p> <p> 偏心孔板和圓缺孔板只適于安裝在水平或傾斜管道上，不能在垂直管道上使用。如被測(cè)流體中含有固體顆粒時(shí)，開(kāi)口或缺口應(yīng)置于下方；如液體中有氣體析出時(shí)，開(kāi)口或缺口應(yīng)置于上方；取壓口處在圓缺口或偏心開(kāi)孔和管道相切點(diǎn)的對(duì)面。天津氣體渦輪流量計(jì)供貨商質(zhì)量流量計(jì)的測(cè)量管無(wú)論是向上還是向下安裝，都要盡量使測(cè)量管與地平面保持垂直或水平。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津熱式氣體質(zhì)量流量計(jì)哪家好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312838142734375/9834381.png"></div><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 </p> <p> 孔板流量計(jì)要送熱風(fēng)，熱風(fēng)爐離高爐一般比較近，且彎頭較多。過(guò)去曾使用標(biāo)準(zhǔn)孔板，因直管段不夠長(zhǎng)而誤差較大。本儀表因?yàn)橛芯鶋涵h(huán)和多個(gè)取壓口，需要2D長(zhǎng)的直管段即可。安裝在熱風(fēng)爐送風(fēng)管上之后，應(yīng)用情況非常滿意，已經(jīng)有三十幾座熱風(fēng)爐裝上了環(huán)形孔板流量計(jì)，運(yùn)行3年多沒(méi)有故障。 </p><p> 按測(cè)量原理分類 </p> <p> 1.力學(xué)原理：屬于此類原理的儀表有利用伯努利定理的差壓式、轉(zhuǎn)子式；利用動(dòng)量定理的沖量式、可動(dòng)管式；利用牛頓第二定律的直接質(zhì)量式；利用流體動(dòng)量原理的靶式；利用角動(dòng)量定理的渦輪式；利用流體振蕩原理的旋渦式、渦街式；利用總靜壓力差的皮托管式以及容積式和堰、槽式等等。 </p> <p> 2.電學(xué)原理：用于此類原理的儀表有電磁式、差動(dòng)電容式、電感式、應(yīng)變電阻式等。 </p> <p> 3.聲學(xué)原理：利用聲學(xué)原理進(jìn)行流量測(cè)量的有超聲波式．聲學(xué)式(沖擊波式)等。 </p> <p> 4.熱學(xué)原理：利用熱學(xué)原理測(cè)量流量的有熱量式、直接量熱式、間接量熱式等。 </p> <p> 5.光學(xué)原理：激光式、光電式等是屬于此類原理的儀表。 </p> <p> 6.原于物理原理：核磁共振式、核幅射式等是屬于此類原理的儀表． </p> <p> 7.其它原理：有標(biāo)記原理(示蹤原理、核磁共振原理)、相關(guān)原理等。智能電磁流量計(jì)因?yàn)榻Y(jié)構(gòu)簡(jiǎn)單，流量計(jì)外殼、被測(cè)流體和管道連接法蘭三者之間應(yīng)做等電位連接，并應(yīng)接地；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津熱式氣體質(zhì)量流量計(jì)哪家好,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637312837240888672/6407176.png"></div><p> 水平管道基本安裝方式對(duì)于水平管道，測(cè)量氣體時(shí)推薦安裝在管道上方160度范圍內(nèi)，尤其對(duì)于有大量水粉的氣體時(shí)，我們只推薦這樣安裝;測(cè)量液體時(shí)推薦安裝在管道下方160度范圍內(nèi)，尤其對(duì)于含有大量氣體的液體時(shí)，我們只推薦這樣安裝;但有一點(diǎn)要注意，對(duì)于那些極易氣化的液體，如液態(tài)的烯烴類介質(zhì)，安裝時(shí)插入方向同氣體，在管道上方。測(cè)量蒸汽時(shí)只推薦傳感器安裝在管道下方160度內(nèi)，并且要使傳感器處于整個(gè)測(cè)量裝置的比較高點(diǎn)。垂直管道基本安裝方式對(duì)于垂直管道，理論上可以在360度內(nèi)安裝。對(duì)于含有大量水分的濕氣體，推薦傳感器安裝時(shí)向上傾斜5度，如左圖所示。對(duì)于含有大量氣體的液體，推薦傳感器安裝時(shí)向下傾斜5度，如右圖所示。對(duì)于蒸汽，推薦傳感器安裝時(shí)下傾斜5度，如右圖，且傳感器應(yīng)該處于整個(gè)測(cè)量系統(tǒng)中的比較高點(diǎn)。威力巴安裝所需直管段小直管段要求—彎管后2D安裝如圖所示。當(dāng)管道上、下游的直管段不夠長(zhǎng)時(shí)，我們推薦在彎管后2倍管道內(nèi)徑處安裝威力巴，因在彎管后的流體剖面較復(fù)雜，需將流體系數(shù)K做適當(dāng)?shù)恼{(diào)整。調(diào)整K系數(shù)后，測(cè)量精度為±3%。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，是工業(yè)中常用到的流量測(cè)量?jī)x表；上海插入式巴類流量計(jì)找哪家</p><p style="text-indent:25px">電磁流量計(jì)有一系列優(yōu)良特性,可以解決其它流量計(jì)不易應(yīng)用的問(wèn)題,如臟污流、腐蝕流的測(cè)量。天津熱式氣體質(zhì)量流量計(jì)哪家好</p><p> 超聲波流量計(jì)缺點(diǎn): </p> <p> （1）超聲波流量計(jì)的溫度測(cè)量范圍不高，一般只能測(cè)量溫度低于200℃的流體。 </p> <p> （2）抗干擾能力差。易受氣泡、結(jié)垢、泵及其它聲源混入的超聲雜音干擾、影響測(cè)量精度。 </p> <p> （3）直管段要求嚴(yán)格，為前**,后5D。否則離散性差，測(cè)量精度低。 </p> <p> （4）安裝的不確定性，會(huì)給流量測(cè)量帶來(lái)較大誤差。 </p> <p> （5）測(cè)量管道因結(jié)垢，會(huì)嚴(yán)重影響測(cè)量準(zhǔn)確度，帶來(lái)明顯的測(cè)量誤差，甚至在嚴(yán)重時(shí)儀表無(wú)流量顯示 </p> <p> （6）可靠性、精度等級(jí)不高（一般為1.5～2.5級(jí)左右），重復(fù)性差。 </p> <p> （7）使用壽命短（一般精度只能保證一年）。 </p> <p> <br /> 天津熱式氣體質(zhì)量流量計(jì)哪家好</p><p style="text-indent:25px">江蘇中徽測(cè)控儀表有限公司是一家主營(yíng)產(chǎn)品：智能電磁流量計(jì)、插入式渦街流量計(jì)、智能超聲波流量計(jì)、威力巴流量計(jì)、平衡流量計(jì)、德?tīng)査土髁坑?jì)、超聲波流量計(jì)、雷達(dá)物位計(jì)、超聲波液位計(jì)、磁翻板液位計(jì)、電磁流量計(jì)、渦街流量計(jì)、旋進(jìn)漩渦流量計(jì)、渦輪流量計(jì)、壓力差壓變送器、校驗(yàn)設(shè)備等。的公司，致力于成為客戶業(yè)務(wù)創(chuàng)新、儀器儀表可信賴的合作伙伴。江蘇中徽測(cè)控儀表作為主營(yíng)產(chǎn)品：智能電磁流量計(jì)、插入式渦街流量計(jì)、智能超聲波流量計(jì)、威力巴流量計(jì)、平衡流量計(jì)、德?tīng)査土髁坑?jì)、超聲波流量計(jì)、雷達(dá)物位計(jì)、超聲波液位計(jì)、磁翻板液位計(jì)、電磁流量計(jì)、渦街流量計(jì)、旋進(jìn)漩渦流量計(jì)、渦輪流量計(jì)、壓力差壓變送器、校驗(yàn)設(shè)備等。的品牌企業(yè)，為客戶提供質(zhì)量的雷達(dá)料位計(jì)，雷達(dá)液位計(jì)，物位計(jì)，水位計(jì)。江蘇中徽測(cè)控儀表不斷開(kāi)拓創(chuàng)新，追求***，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為**，以服務(wù)為保障，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。江蘇中徽測(cè)控儀表創(chuàng)始人姜錦山，始終關(guān)注客戶，以優(yōu)化創(chuàng)新的科技，竭誠(chéng)為客戶提供極好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1102426.html</p></div></div></div></div></div><div id="3fjn7xe" class="page-right twoColRt"><div id="xgdxjlx" class="box01 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