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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hryfgsz" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jszhck/637436288996836659/3226440.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="c2zifmt" 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>河南插入式巴類流量計(jì)供貨商,流量計(jì)</p><p><span>***更新：</span>2021-01-22 06:08:27</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="rlsugne" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇中徽測控儀表有限公司</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="2e2j8vs" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="2zy82ik" class="box"><p><p> 售價(jià)較高同種規(guī)格的V錐流量計(jì)的價(jià)格要高于孔板流量計(jì),但低于可更換孔板流量計(jì)。由于V錐的用料多、加工工藝復(fù)雜、標(biāo)定費(fèi)用高,使得其售價(jià)較高。但是在考慮流量計(jì)時(shí),初次購買價(jià)及安裝費(fèi)用、儀表的可靠性、長期維護(hù)費(fèi)用、長久壓力損失等綜合因素的總評才是選取流量計(jì)的依據(jù),只有綜合考慮并權(quán)衡了以上這些重要因素，河南插入式巴類流量計(jì)供貨商,才能做到合理選型。如前所述,V錐流量計(jì)除了在初次購買費(fèi)用上高于孔板流量計(jì)外,其他的費(fèi)用應(yīng)該與孔板流量計(jì)持平或低于孔板流量計(jì)。尤其是在補(bǔ)償壓力損失所需要的耗能方面,V錐流量計(jì)遠(yuǎn)遠(yuǎn)優(yōu)于孔板流量計(jì)。所以從長遠(yuǎn)考慮,使用V錐流量計(jì)的綜合費(fèi)用要低于孔板流量計(jì)。使用可更換孔板的目的就是為了提高孔板的量程比。但是其價(jià)格昂貴。如果給V錐流量計(jì)配兩臺(tái)不同量程的變送器（壓力變送器、差壓變送器）,那么其量程比的擴(kuò)展要遠(yuǎn)大于可更換孔板流量計(jì),而其價(jià)格要遠(yuǎn)低于可更換孔板。3差壓較低由于V錐流量計(jì)的流出系數(shù)要大于孔板流量計(jì)的流出系數(shù),使得相同流量時(shí)孔板的差壓值要高于V錐的差壓值，河南插入式巴類流量計(jì)供貨商。孔板流量計(jì)的變送器一般都是用中差壓表，河南插入式巴類流量計(jì)供貨商,V錐流量計(jì)一般用低差壓表。 </p> <p> <br /> </p> <p> <br /> 渦輪流量計(jì)在以下一些測量對象獲得廣泛應(yīng)用:石油、有機(jī)液體、無機(jī)液、液化氣、天然氣和低溫流；河南插入式巴類流量計(jì)供貨商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南插入式巴類流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436288996836659/3226440.png"></div><p> 智能電磁流量計(jì)因?yàn)榻Y(jié)構(gòu)簡單，流量計(jì)外殼、被測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；沒有可以動(dòng)彈的部件，并且也沒有任何可以組織流體進(jìn)入到儀器的結(jié)構(gòu)，所以在進(jìn)行測量時(shí)，沒有太多的能量損失，對于測試結(jié)果誤差較小。在垂直的管道上安裝時(shí)，被測流體的流向應(yīng)自下而上，在水平的管道上安裝時(shí)，兩個(gè)測量電極不應(yīng)在管道的正上方和正下方位置；此外因?yàn)檫@種獨(dú)特的設(shè)計(jì)結(jié)構(gòu)，儀器在使用一段時(shí)間后不會(huì)發(fā)生堵塞等故障。這種智能電磁流量計(jì)在進(jìn)行測量時(shí)不會(huì)受到，流體的粘度和密度的影響，因此智能電磁流量計(jì)只需經(jīng)過水準(zhǔn)標(biāo)定以后就可以對流體進(jìn)行測量。除此之外，這種儀器沒有機(jī)械的慣性，流量計(jì)上游直管段長度和安裝支撐方式應(yīng)符合設(shè)計(jì)文件要求?？梢苑浅：玫膶?shí)現(xiàn)對流體的制動(dòng)，反應(yīng)非常靈敏，可以瞬時(shí)間測得大量流體的數(shù)據(jù)。 </p> <p> <br /> </p> <p> <br /> 河北長頸噴嘴流量計(jì)供貨廠固定式超聲波流量計(jì)要求長時(shí)間接連運(yùn)轉(zhuǎn)，所以要運(yùn)用220V交流電源；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南插入式巴類流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289238506436/7289599.png"></div><p style="text-indent:25px"> 智能電磁流量計(jì)傳感器接地很重要，尤其在管道存在雜散電流干擾時(shí)，只有良好的接地保護(hù)，才能使智能電磁流量計(jì)準(zhǔn)確地測量。也許在沒有這種干擾的環(huán)境里，不接地并不影響流量計(jì)準(zhǔn)確測量，但是一旦環(huán)境改變，即造成流量計(jì)不能準(zhǔn)確穩(wěn)定地工作，所以我們在安裝時(shí)比較好做好傳感器接地保護(hù)，給智能電磁流量計(jì)創(chuàng)造一個(gè)良好的工作環(huán)境。接地環(huán)分為普通型和保護(hù)型，一般是使用普通型，若被測介質(zhì)是磨損性的，宜使用帶頸的保護(hù)接地環(huán)。以保護(hù)進(jìn)口端的襯里，延長使用壽命。若口徑在200mm以下的智能電磁流量計(jì)，選用聚四氟乙烯襯里時(shí)，應(yīng)選用接地環(huán)，以保證在管道連接安裝時(shí)保護(hù)襯里不受損壞，接地環(huán)通常是不銹鋼或Hc合金的。</p><p style="text-indent:25px">差壓式流量計(jì)的組成差壓式(也稱節(jié)流式)流量計(jì)是基于流體流動(dòng)的節(jié)流原理，利用流體經(jīng)節(jié)流裝置時(shí)產(chǎn)生的壓力差而實(shí)現(xiàn)流量測量的。差壓式流量計(jì)一般是由能將流體的流量變換成差壓信號(hào)的節(jié)流量(孔扳、噴嘴)和用來測量壓差值的差壓計(jì)或差壓變送器及顯示儀表組成。這種流量計(jì)，目前在化工、煉油及其它工業(yè)中應(yīng)用很廣，應(yīng)用的歷史也較長久，因此已經(jīng)積累了豐富的實(shí)踐經(jīng)驗(yàn)和完整的實(shí)驗(yàn)資料。對于常用的孔板、噴嘴等節(jié)流裝置，國內(nèi)外已把它們標(biāo)準(zhǔn)化了，并稱為“標(biāo)準(zhǔn)節(jié)流裝置”。因此,這種流量計(jì)所用的標(biāo)準(zhǔn)節(jié)流裝置可以根據(jù)計(jì)算結(jié)果直接投入制造和使用，不必用實(shí)驗(yàn)方法進(jìn)行單獨(dú)標(biāo)定。但對于非標(biāo)準(zhǔn)化的特殊節(jié)流裝置,在使用時(shí)，均應(yīng)進(jìn)行個(gè)別標(biāo)定。渦輪流量計(jì)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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南插入式巴類流量計(jì)供貨商,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/jszhck/637436289081162701/1953504.png"></div><p> 信號(hào)傳輸電纜長度的題目傳感器(即電極)與轉(zhuǎn)換器之間的連接電纜愈短愈好。但有些現(xiàn)場受安裝環(huán)境位置的限制，轉(zhuǎn)換器與傳感器的間隔較遠(yuǎn)，這時(shí)要考慮連接電纜的最大長度題目。傳感器與轉(zhuǎn)換器之間的連接電纜的最大長度又由電纜的分布電容和被測流體的電導(dǎo)率決定。實(shí)際使用中，當(dāng)被測流體的電導(dǎo)率是在一定的范圍之間，因此就決定了電極與轉(zhuǎn)換器之間電纜的最大長度。當(dāng)電纜長度超過最大長度時(shí)，由電纜分布電容引起的負(fù)載效應(yīng)就成了題目。為防止這種情況發(fā)生，使用雙芯兩層屏蔽電纜，由轉(zhuǎn)換器提供低阻抗電壓源使內(nèi)側(cè)屏蔽與芯線得到相同的電壓，以形成屏蔽，即使芯線與屏蔽之間有分布電容存在，但芯線與屏蔽是同電位，則兩者之間就無電暢通流暢過，也無電纜的負(fù)載效應(yīng)存在，因此可延長信號(hào)電纜最大長度。另外，還可用特殊信號(hào)傳輸電纜延長轉(zhuǎn)換器與傳感器之間的最大長度。 </p> <p> <br /> </p> <p> <br /> 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)用的問題,如臟污流、腐蝕流的測量。河北長頸噴嘴流量計(jì)供貨廠</p><p style="text-indent:25px">流量計(jì)有堰槽式流量計(jì)，它是通過測量液位來反映流量。河南插入式巴類流量計(jì)供貨商</p><p> 熱式質(zhì)量流量計(jì)（恒溫差TMF）優(yōu)點(diǎn):（1）球閥安裝，安裝拆卸方便。并可以帶壓安裝。（2）基于金氏定律，直接測量質(zhì)量流量。測量值不受壓力和溫度影響。（3）響應(yīng)迅速。（4）量程范圍大，管道式安裝小可以測量8.8mm管道的流量，比較大可以測到30’’（5）插入式類型的流量計(jì)，一支流量計(jì)可以用于測量多種管徑。缺點(diǎn):（1）精度不及其他類型流量計(jì)，一般為3％。（2）適用范圍窄，只能用于測量干燥的非**性的氣體，如壓縮空氣、氮?dú)?、氬氣及其他中性氣體。 </p> <p> <br /> </p> <p> <br /> 河南插入式巴類流量計(jì)供貨商</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2956782.html</p></div></div></div></div></div><div id="2wyfh3i" class="page-right twoColRt"><div id="8hoq3g8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="g8fm7yv" 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) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="22sumjq" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個(gè)科目真誠推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" 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