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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fjlnuwd" 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>山東電磁流量計(jì)供貨商,流量計(jì)</p><p><span>***更新：</span>2020-12-17 08:13:05</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="r8qsubi" 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 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質(zhì)量流量計(jì)安裝要求1、安裝位置的選擇應(yīng)避免電磁干擾，山東電磁流量計(jì)供貨商。傳感器、變送器的安裝位置以及電纜鋪設(shè)應(yīng)盡量遠(yuǎn)離易產(chǎn)生強(qiáng)電磁場(chǎng)的設(shè)備，如大功率馬達(dá)、變壓器設(shè)施、變頻設(shè)備等。2、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，山東電磁流量計(jì)供貨商。(注：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。)3，山東電磁流量計(jì)供貨商、質(zhì)量流量計(jì)是根據(jù)測(cè)量管振動(dòng)原理測(cè)量的流量?jī)x表，因此傳感器安裝時(shí)應(yīng)考慮在兩側(cè)的工藝管道近法蘭處(約2～10倍管徑處)做堅(jiān)固的支撐，避免儀表及相關(guān)管路產(chǎn)生震動(dòng)。若強(qiáng)烈的管道振動(dòng)不可避免時(shí)，建議用柔性管將管道系統(tǒng)與儀表傳感器隔離。4、因質(zhì)量流量計(jì)是依據(jù)科氏力原理工作的，為避免重力對(duì)計(jì)量精度的影響。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。5、安裝時(shí)連接法蘭面應(yīng)相互平行，應(yīng)使兩個(gè)法蘭的中心位于同一軸線避免產(chǎn)生附加應(yīng)力。嚴(yán)禁用傳感器硬行拉直上、下游工藝管道，否則將影響測(cè)量甚至損壞傳感器。6、在傳感器的上、下游管道上，建議安裝截止閥及旁路以方便調(diào)零、日常維護(hù)及確保傳感器在不工作時(shí)亦可處于滿管狀態(tài)。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；山東電磁流量計(jì)供貨商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東電磁流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289003828671/3963991.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。四川孔板流量計(jì)批發(fā)價(jià)格流量計(jì)傳感器上游也應(yīng)該有一定的直管段，一般在5D~10D。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東電磁流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289060000603/4529138.png"></div><p> 絕大部分轉(zhuǎn)子流量計(jì)必須垂直安裝在無(wú)振動(dòng)的管道上，不應(yīng)有明顯的傾斜，流體自下而上流過(guò)儀表。轉(zhuǎn)子流量計(jì)中心線與鉛垂線間夾角一般不超過(guò)5度，高精度()儀表θ≤20°。如果θ=12°則會(huì)產(chǎn)生1%附加誤差。儀表無(wú)嚴(yán)格上游直管段長(zhǎng)度要求，但也有制造廠要求(2-5)D長(zhǎng)度的，實(shí)際上必要性不大。2、用于污臟流體的安裝應(yīng)在儀表上游裝過(guò)濾器。帶有磁性耦合的金屬管轉(zhuǎn)子流量計(jì)用于可能含磁鐵性雜質(zhì)流體時(shí)，應(yīng)在儀表前裝磁過(guò)濾器。要保持浮子和錐管的清潔，特別是小口徑儀表，浮子潔凈程度明顯影響測(cè)量值。3、轉(zhuǎn)子流量計(jì)擴(kuò)大范圍度的安裝如果測(cè)量要求的流量范圍度寬，范圍度超過(guò)10時(shí)，可以在一臺(tái)儀表內(nèi)放兩只不同形狀和重量的浮子，小流量時(shí)取輕浮子讀數(shù)，浮子到頂部后取重浮子讀數(shù)，范圍度可擴(kuò)大到50-100。 </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。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；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東電磁流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.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)，開口或缺口應(yīng)置于下方；如液體中有氣體析出時(shí)，開口或缺口應(yīng)置于上方；取壓口處在圓缺口或偏心開孔和管道相切點(diǎn)的對(duì)面。電磁流量計(jì)的電源線，要做好防雷電的工作。特別是夏天，一定做注意這一點(diǎn)。江西孔板流量計(jì)哪家好</p><p style="text-indent:25px">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)；山東電磁流量計(jì)供貨商</p><p style="text-indent:25px">當(dāng)熱電偶和熱電阻傳感器安裝在戶外時(shí)，熱電偶和熱電阻傳感器的接線盒面蓋應(yīng)向上，入線口應(yīng)向下，以避免雨水或灰塵進(jìn)入接線盒，而損壞熱電偶和熱電阻接線盒內(nèi)的接線影響其測(cè)量精度。另外熱電偶和熱電阻應(yīng)盡量安裝在有保護(hù)層的管道內(nèi)，以防止熱量散失。其次當(dāng)熱電偶和熱電阻傳感器安裝在負(fù)壓管道中時(shí)，必須保證測(cè)量處具有良好的密封性，以防止外界冷空氣進(jìn)入，使讀數(shù)偏低。智能電磁流量計(jì)在使用時(shí)我們要求被測(cè)介質(zhì)必須是地電位，一般都是通過(guò)管道或法蘭接地，如果連接傳感器的工藝管道相對(duì)被測(cè)介質(zhì)都是絕緣的，如：塑料管道或有絕緣襯里的管道，就必須選用接地環(huán)或帶接地電極的傳感器，使被測(cè)介質(zhì)處于地電位,在實(shí)際設(shè)計(jì)安裝時(shí)容易被忽視。山東電磁流量計(jì)供貨商</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，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。江蘇中徽測(cè)控儀表?yè)碛幸恢Ы?jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供雷達(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)控儀表始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。江蘇中徽測(cè)控儀表始終關(guān)注儀器儀表市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長(zhǎng)共贏。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2442081.html</p></div></div></div></div></div><div id="uovx3a9" 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