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clearfix"><h1>熱式質(zhì)量流量計廠家誠信經(jīng)營西安倫騫電器設(shè)備供應(yīng)</h1><div id="crbyqco" class="proBig"><div id="oyacelc" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520330341797/7183549.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bvsuwx3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520330341797/7183549.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2frtahj" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>陜西省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>熱式質(zhì)量流量計廠家,流量計</p><p><span>***更新：</span>2020-09-22 07:13:08</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="sczbn3x" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">西安倫騫電器設(shè)備有限責(zé)任公司</a></p><p><span>聯(lián)系人：</span>付海飛</p><p><span>郵箱: </span>xalunqian@163.com</p><p><span>電話: </span>13891837328</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://xalunqian.shop.88360.com</p><p><span>手機(jī): </span>138-91837328</p><p><span>地址: </span>高新區(qū)發(fā)展大道25號軍民融合創(chuàng)新港</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="nc8gdkw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="odvsubs" class="box"><p><p> 熱式流量計的特點:1:無可動部件，熱式質(zhì)量流量計廠家，密封面減少，降低泄漏率，便于安裝和日常維護(hù);2:測量范圍寬，比較大測量范圍可達(dá)20:1(液體)或30:1(氣體);3:計量準(zhǔn)確、精度高，法蘭式可達(dá)(液體)或(氣體);4:靈敏度極高，能測量超小流量，其可測量低流速為，電磁流量計5:重復(fù)性好，一般為，非線性修正，濾波時間可選擇;6:壓力損失小，小口徑*為標(biāo)準(zhǔn)孔板的1/2△P左右;DN100口徑以上壓力損失開始大幅度減少;7:標(biāo)定方便，除可采用標(biāo)準(zhǔn)裝置檢定外，還可采用干式標(biāo)定方法，即采用砝碼掛重法，單鍵操作即可完成標(biāo)定;8:可根據(jù)實際需要更換阻流件而改變流量范圍，在線可拆裝插入式結(jié)構(gòu)可實現(xiàn)不停產(chǎn)，不斷流維修或更換;9:低功耗電池現(xiàn)場顯示，能在線直讀示值，顯示屏可同時讀取瞬時流量累積流量及百分比棒圖，并可切換顯示補(bǔ)償溫度及補(bǔ)償壓力示值;10:抗干擾、抗雜質(zhì)能力特強(qiáng)，多種輸出形式，能遠(yuǎn)傳各種參數(shù)，使用無需拌熱，熱式質(zhì)量流量計廠家。11.測量氣體無需溫度壓力補(bǔ)償，熱式質(zhì)量流量計廠家，可直接顯示標(biāo)況體積流量。渦輪流量計是速度式流量計中的主要種類，采用多葉片的轉(zhuǎn)子感受流體平均流速，從而推導(dǎo)出流量或總量的儀表。熱式質(zhì)量流量計廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="熱式質(zhì)量流量計廠家,流量計" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520330341797/7183549.png"></div><p> 橢圓齒輪流量計流量信號(即橢圓齒輪的旋轉(zhuǎn)速度n)的顯示，有就地顯示和遠(yuǎn)傳顯示兩種。就地顯示將齒輪的轉(zhuǎn)動通過一系列的減速及調(diào)整轉(zhuǎn)速比機(jī)構(gòu)之后，直接與儀表面板上的指示針相連，并經(jīng)過機(jī)械式計數(shù)器進(jìn)行總量的顯示。遠(yuǎn)傳顯示主要是通過減速后的齒輪帶動永久磁鐵旋轉(zhuǎn)，使得彈簧繼電器的觸點以與永久磁鐵相同的旋轉(zhuǎn)頻率同步地閉合或斷開，從而發(fā)出一個個電脈沖遠(yuǎn)傳給另一顯示儀表.橢圓齒輪流量計計量精度高，適用于高粘度介質(zhì)流量的測量，但不適用于含有固體顆粒的流體，如果被測液體介質(zhì)中夾雜有氣體時，也會引起測量誤差。通常橢圓齒輪流量計的精度可達(dá)0.5級，是一種較為準(zhǔn)確的流量計量儀表，但是，如果使用時被測介質(zhì)的流量過小，橢圓齒輪流量計儀表的泄漏誤差的影響就會突出，不能再保證足夠的測量精度。金屬管浮子流量計制造商透明錐形管4用得普遍是由硼硅玻璃制成，習(xí)慣簡稱玻璃管浮子流量計。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="熱式質(zhì)量流量計廠家,流量計" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332520631328125/4056452.png"></div><p> 渦街流量計便是依據(jù)卡門旋渦原理進(jìn)行封閉管道流體流量測量的新型流量計。因其具有良好的介質(zhì)適應(yīng)能力，無需溫度壓力補(bǔ)償即可直接測量蒸汽、空氣、氣體、水、液體的工況體積流量，配備溫度、壓力傳感器可測量標(biāo)況體積流量和質(zhì)量流量，是節(jié)流式流量計的理想替代產(chǎn)品。為提高渦街流量計的耐高溫及抗振動性能，我公司新近開發(fā)出了改進(jìn)型渦街流量傳感器，因其獨特的結(jié)構(gòu)和選材使該傳感器可在高溫（350℃）、強(qiáng)振動（≤1g）的惡劣工況下使用。在實際應(yīng)用中，往往比較大流量遠(yuǎn)低于儀表的上限值，隨著負(fù)荷的變化，小流量又往往會低于儀表的下限值，儀表并非工作在它的比較好工作段，為了解決這一問題，通常采用在測量處縮徑提高測量處的流速，并選用較小口徑的儀表以利于儀表的測量，但是這種變徑方式必須在變徑管與儀表間有長度為15D以上的直管段進(jìn)行整流，使加工、安裝都不方便。我公司研制的縱斷面形狀為圓弧的LGZ變徑整流器，具有整流、提高流速及改變流速分布多重作用，其結(jié)構(gòu)尺寸小，*為工藝管內(nèi)徑的1/3，與渦街流量計作成一體，不*不需要另外附加一段直管段，還可以降低對工藝管直管段的要求，安裝非常方便。 </p><p> 在流體中設(shè)置三角柱型旋渦發(fā)生體，則從旋渦發(fā)生體兩側(cè)交替地產(chǎn)生有規(guī)則的旋渦，這種旋渦稱為卡門旋渦，如右圖所示，旋渦列在旋渦發(fā)生體下游非對稱地排列。 </p> <p> 渦街流量計是根據(jù)卡門（Karman）渦街原理測量氣體、蒸汽或液體的體積流量、標(biāo)況的體積流量或質(zhì)量流量的體積流量計。并可作為流量變送器應(yīng)用于自動化控制系統(tǒng)中。 </p> <p> 渦街流量計是應(yīng)用流體振蕩原理來測量流量的，流體在管道中經(jīng)過渦街流量變送器時，在三角柱的旋渦發(fā)生體后上下交替產(chǎn)生正比于流速的兩列旋渦，旋渦的釋放頻率與流過旋渦發(fā)生體的流體平均速度及旋渦發(fā)生體特征寬度有關(guān)，可用下式表示： </p> <p> f=Stv/d </p> <p> 式中:f為旋渦的釋放頻率，Hz；v為流過旋渦發(fā)生體的流體平均速度，m/s；d為旋渦發(fā)生體特征寬度，m；St為斯特羅哈數(shù)，無量綱，它的數(shù)值范圍為0.14－0.27。 </p> <p> St是雷諾數(shù)的函數(shù)，St=f（l/Re）。 </p> <p> 當(dāng)雷諾數(shù)Re在102~105范圍內(nèi)，St值約為0.2，因此，在測量中，要盡量滿足流體的雷諾數(shù)在102~105，旋渦頻率f=0.2v/d。 </p> <p> 由此可知，通過測量旋渦頻率就可以計算出流過旋渦發(fā)生體的流體平均速度v，再由式q=vA可以求出流量q，其中A為流體流過旋渦發(fā)生體的截面積。流量計又分為有差壓式流量計、容積流量計、電磁流量計、超聲波流量計、渦輪流量計和渦街流量計等等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="熱式質(zhì)量流量計廠家,流量計" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332521343955078/7020765.png"></div><p> 高溫型（80度至500度）、常溫型（-20度至70度）、低溫型（-20至-200度）流量計的安裝： </p> <p> a、常溫型、低溫型、高溫型流量計視不同工況采用水平、垂直或倒置式安裝（以出廠校驗單為準(zhǔn)）；b、介質(zhì)工作溫度在300度以上時，用戶應(yīng)對流量計殼體采取隔熱措施防止熱輻射損壞表頭(表頭工作溫度為-30至70度)，同理工作溫度-100度以下的介質(zhì)，也要采取防凍措施；c、為保證流量計準(zhǔn)確計量，要求設(shè)置前后直管段；）d、為保證流量計在檢查及更換時不影響系統(tǒng)工作，應(yīng)盡量設(shè)置旁通閥（3）及切斷閥（1、2）；e、因工藝需要可采用垂直安裝，被測介質(zhì)流向可由下至上，也可由上至下，但訂購時應(yīng)向供貨方說明。實際上大部分浮子流量計同一儀表可用于液體也可用于氣體，結(jié)構(gòu)上是通用的。熱式質(zhì)量流量計廠家</p><p style="text-indent:25px">隨著集成電路技術(shù)的迅速發(fā)展，具有鎖相環(huán)路技術(shù)的超聲（波）流量計也得到了普遍應(yīng)用。熱式質(zhì)量流量計廠家</p><p> 實際上大部分浮子流量計同一儀表可用于液體也可用于氣體，結(jié)構(gòu)上是通用的。只是我國浮子流量計行業(yè)標(biāo)準(zhǔn)等規(guī)定流量上限Qmax必須符合（1，，，4或6）×10nL/h的要求（n為正負(fù)整數(shù)或零），為液體（以水為表示）設(shè)計的儀表用于氣體（以空氣為表示）時，不符合上述要求，只能為氣體另行設(shè)計浮子和錐管，就分成液體和氣體兩種系列。國外有些制造廠同一儀表并列液、氣兩種流體的流量范圍，當(dāng)然流量值就不可能都是圓整值；國內(nèi)有些型號儀表也采用本辦法。但是液體用和氣體用設(shè)計還是有區(qū)別的，例如氣體儀表浮子設(shè)計得較輕，防浮子振蕩跳動的阻尼件結(jié)構(gòu)各異等。測量蒸汽只能用專門設(shè)計的金屬管浮子流量計或在標(biāo)準(zhǔn)型儀表上加裝附加構(gòu)件，例如增加帶散熱片的液體阻尼件，以減少浮子跳動；與指示轉(zhuǎn)換部分連接處隔以散熱片。熱式質(zhì)量流量計廠家</p><p style="text-indent:25px">西安倫騫電器設(shè)備有限責(zé)任公司致力于儀器儀表，以科技創(chuàng)新實現(xiàn)***管理的追求。西安倫騫電器擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊，以高度的專注和執(zhí)著為客戶提供雷達(dá)料位計，雷達(dá)物位計，壓力變送器，溫度變送器。西安倫騫電器不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。西安倫騫電器始終關(guān)注儀器儀表市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1377038.html</p></div></div></div></div></div><div id="gq3a3rh" class="page-right twoColRt"><div id="kzrt7gs" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="difhjlx" class="recomPic likePro"><a href="http://m.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="wgi8szl" 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