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href="http://www.cdcfah.com/cp/second-yiqiyibiao_wybez/">物位儀表</a>?<a href="http://www.cdcfah.com/cp/third-wybez_yyb/">液位儀表</a>?鎮(zhèn)江插入式巴類流量計(jì)找哪家誠(chéng)信為本江蘇中徽測(cè)控儀表供應(yīng)</p><div id="prjfljr" class="leftbox clearfix"><h1>鎮(zhèn)江插入式巴類流量計(jì)找哪家誠(chéng)信為本江蘇中徽測(cè)控儀表供應(yīng)</h1><div id="rlljln5" class="proBig"><div id="t9jj7l7" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289195098254/5407997.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="blv1pfl" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436289195098254/5407997.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="n7t35xx" 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>鎮(zhèn)江插入式巴類流量計(jì)找哪家,流量計(jì)</p><p><span>***更新：</span>2020-12-18 07:12:19</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="ddjhtnx" 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="fhvfnz9" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="z9lvjtt" class="box"><p><p> 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(wú)關(guān)。 </p> <p> 安裝要點(diǎn)<span style="font-size:12px;"> </span> </p> <p> A、安裝地點(diǎn)不能有大的振動(dòng)源，并應(yīng)采取加固措施來(lái)穩(wěn)定儀表附近的管道; </p> <p> B、不能安裝在大型變壓器、電動(dòng)機(jī)，鎮(zhèn)江插入式巴類流量計(jì)找哪家、機(jī)泵等產(chǎn)生較大磁場(chǎng)的設(shè)備附近，鎮(zhèn)江插入式巴類流量計(jì)找哪家，以免受到電磁場(chǎng)的干擾; </p> <p> C、傳感器與管道連接時(shí)應(yīng)保證滿管運(yùn)行，比較好垂直安裝; </p> <p> D，鎮(zhèn)江插入式巴類流量計(jì)找哪家、變送器外殼接地與就近接地網(wǎng)連接即可;屏蔽電纜(分體式)按說(shuō)明書連接，信號(hào)電纜(至系統(tǒng))進(jìn)行屏蔽層系統(tǒng)處單端接地;測(cè)量傳感器與管道連接的短路環(huán)需要接地，接地電阻應(yīng)小于10歐姆，不能與電氣接地共用; </p> <p> E、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。 </p> <p> <br /> 流量計(jì)有渦輪流量計(jì)、渦街流量計(jì)、電磁流量計(jì)、多普勒超聲波流量計(jì)、熱線測(cè)速流量計(jì)；鎮(zhèn)江插入式巴類流量計(jì)找哪家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鎮(zhèn)江插入式巴類流量計(jì)找哪家,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289195098254/5407997.png"></div><p> 關(guān)于超聲波流量計(jì)固定式和便攜式有什么不同 </p> <p> （1）合適使用的場(chǎng)合不一樣 </p> <p> 固定式超聲波流量計(jì)用于安裝在某一固定方位，對(duì)某一特定管道內(nèi)流體的流量進(jìn)行長(zhǎng)時(shí)間不間斷的計(jì)量；便攜式超聲波流量計(jì)具有很大的機(jī)動(dòng)性，首要用于對(duì)不一樣管道的流體流量作臨時(shí)性丈量。 </p> <p> （2）供電方法不一樣 </p> <p> 固定式超聲波流量計(jì)要求長(zhǎng)時(shí)間接連運(yùn)轉(zhuǎn)，所以要運(yùn)用220V交流電源，便攜式超聲波流量計(jì)既能夠運(yùn)用現(xiàn)場(chǎng)的交流電源，也備有內(nèi)置充電電池，能夠接連作業(yè)5～10h［小時(shí)］，方便了不一樣場(chǎng)合臨時(shí)性流量丈量的需要。 </p> <p> （3）有些功用不一樣 </p> <p> 因定式超聲波流量計(jì)，通常都有4-20mA信號(hào)輸出等功用，供遠(yuǎn)傳顯現(xiàn)運(yùn)用，但其內(nèi)部只能存貯一條管道的參數(shù)；便攜式超聲波流量計(jì)**為了現(xiàn)場(chǎng)檢查當(dāng)時(shí)流量和短時(shí)間內(nèi)的累計(jì)流量，故一般無(wú)輸出信號(hào)功用，但為了方便丈量不一樣管道流量，它具有豐厚的儲(chǔ)存功用，能夠一起存貯數(shù)十條不一樣管道的參數(shù)，供隨時(shí)調(diào)出運(yùn)用。 </p> <p> <br /> 鎮(zhèn)江插入式巴類流量計(jì)找哪家孔板流量計(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；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鎮(zhèn)江插入式巴類流量計(jì)找哪家,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289184268193/6612766.png"></div><p style="text-indent:25px">熱電偶安裝時(shí)應(yīng)放置在盡可能靠近所要測(cè)的溫度控制點(diǎn)。為防止熱量沿?zé)犭娕紓髯呋蚍乐贡Ｗo(hù)管影響被測(cè)溫度，熱電偶應(yīng)浸入所測(cè)流體之中，深度至少為直徑的10倍。當(dāng)測(cè)量固體溫度時(shí)，熱電偶應(yīng)當(dāng)頂著該材料或與該材料緊密接觸。為了使導(dǎo)熱誤差減至小，應(yīng)減小接點(diǎn)附近的溫度梯度。當(dāng)用熱電偶測(cè)量管道中的氣體溫度時(shí)，如果管壁溫度明顯地較高或較低，則熱電偶將對(duì)之輻射或吸收熱量，從而顯著改變被測(cè)溫度。這時(shí)，可以用一輻射屏蔽罩來(lái)使其溫度接近氣體溫度，采用所謂的屏罩式熱電偶。選擇測(cè)溫點(diǎn)時(shí)應(yīng)具有性，例如測(cè)量管道中流體溫度時(shí)，熱電偶的測(cè)量端應(yīng)處于管道中流速比較大處。一般來(lái)說(shuō)，熱電偶的保護(hù)套管末端應(yīng)越過(guò)流速中心線。</p><p> 孔板流量計(jì)使流速增加，靜壓力低，于是在節(jié)流件前后便產(chǎn)生了壓力降，即壓差，介質(zhì)流動(dòng)的流量越大，在節(jié)流件前后產(chǎn)生的壓差就越大，所以孔板流量計(jì)可以通過(guò)測(cè)量壓差來(lái)衡量流體流量的大小。這種測(cè)量方法是以能量守衡定律和流動(dòng)連續(xù)性定律為基準(zhǔn)的。<span style="font-size:12px;">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，被廣泛應(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.</span> 流體流動(dòng)帶動(dòng)渦輪轉(zhuǎn)動(dòng)，渦輪的轉(zhuǎn)速轉(zhuǎn)換成電脈沖，用二次表顯示出數(shù)據(jù)，反應(yīng)流體流速。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鎮(zhèn)江插入式巴類流量計(jì)找哪家,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436288996836659/3226440.png"></div><p> 流量計(jì)（Flowmeter）是工業(yè)生產(chǎn)的眼睛，與國(guó)民經(jīng)濟(jì)、**建設(shè)、科學(xué)研究有著密切的關(guān)系，在國(guó)民經(jīng)濟(jì)中占據(jù)重要地位與作用，可用于氣體、液體、蒸汽等介質(zhì)流量的測(cè)量。 </p> <p> 3. 渦輪流量計(jì) </p> <p> 工作原理：在一定的流量范圍內(nèi)，渦輪的轉(zhuǎn)速與流體的流速成正比。流體流動(dòng)帶動(dòng)渦輪轉(zhuǎn)動(dòng)，渦輪的轉(zhuǎn)速轉(zhuǎn)換成電脈沖，用二次表顯示出數(shù)據(jù)，反應(yīng)流體流速。 </p> <p> 工作特點(diǎn)：①抗雜質(zhì)能力強(qiáng);②抗電磁干擾和抗振能力強(qiáng);③其結(jié)構(gòu)與原理簡(jiǎn)單，便于維修;④幾乎無(wú)壓力損失，節(jié)省動(dòng)力消耗。電磁流量計(jì)是通過(guò)測(cè)量導(dǎo)電液體的速度確定工作狀態(tài)下的體積流量。鎮(zhèn)江插入式巴類流量計(jì)找哪家</p><p style="text-indent:25px">質(zhì)量流量計(jì)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，而造成儀表顯示值失真。鎮(zhèn)江插入式巴類流量計(jì)找哪家</p><p> 流量計(jì)指示被測(cè)流量和(或)在選定的時(shí)間間隔內(nèi)流體總量的儀表，也是測(cè)量液體、氣體流量必不可少的儀表，大家平時(shí)想必也都見過(guò)許多不同類型的流量計(jì)。正確的安裝方式對(duì)流量計(jì)來(lái)說(shuō)十分重要。 </p> <p> 流量測(cè)量的發(fā)展可追溯到古代的水利工程和城市供水系統(tǒng)。古羅馬凱撒時(shí)代已采用孔板測(cè)量居民的飲用水水量。公元**00年左右古埃及用堰法測(cè)量尼羅河的流量。我國(guó)的都江堰水利工程應(yīng)用寶瓶口的水位觀測(cè)水量大小等等。17世紀(jì)托里拆利奠定差壓式流量計(jì)的理論基礎(chǔ)，這是流量測(cè)量的里程碑。自那以后，18、19世紀(jì)流量測(cè)量的許多類型儀表的雛形開始形成，如堰、示蹤法、皮托管、文丘里管、容積、渦輪及靶式流量計(jì)等。鎮(zhèn)江插入式巴類流量計(jì)找哪家</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2454483.html</p></div></div></div></div></div><div id="hj1pprf" class="page-right twoColRt"><div id="hf9lz99" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lh3lpd1" 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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