德國進(jìn)口（非導(dǎo)電液體）E+H渦街流量計(jì)

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E+H渦街流量計(jì)也稱之為旋渦流量計(jì)或卡門渦街流量計(jì)。綜合吸收發(fā)達(dá)國家*技術(shù)和總結(jié)多年研究生產(chǎn)經(jīng)驗(yàn)的基礎(chǔ)上進(jìn)行精心設(shè)計(jì)的產(chǎn)品，實(shí)現(xiàn)了產(chǎn)品智能化、標(biāo)準(zhǔn)化、系列化、通用化、生產(chǎn)模具化、確保產(chǎn)品質(zhì)量的美觀性。該產(chǎn)品具有電路*、功耗微低、量程比寬、結(jié)構(gòu)簡單、阻力損失小、堅(jiān)固耐用、用途廣、使用壽命長、工作穩(wěn)定、便于安裝調(diào)試等特點(diǎn)。

參數(shù)及要求

◆測量介質(zhì)： 氣體、液體、蒸氣

  溫壓補(bǔ)償型渦街流量計(jì)——迪元儀表

◆連接方式：法蘭卡裝式、法蘭式、插入式

◆口徑規(guī)格 法蘭卡裝式口徑選擇 25,32,50,80,10

◆法蘭連接式口徑選擇 100,150,200

◆流量測量范圍 正常測量流速范圍 雷諾數(shù)1.5×104～4×106；氣體5～50m/s; 液體0.5～7m/s

正常測量流量范圍 液體、氣體流量測量范圍見表2； 蒸氣流量范圍見表3

◆測量精度 1.0級 1.5級

◆被測介質(zhì)溫度:常溫–25℃～100℃，高溫–25℃～150℃ -25℃～250℃

◆輸出信號 脈沖電壓輸出信號 高電平8～10V 低電平0.7～1.3V

◆脈沖占空比約50%,傳輸距離為100m

◆脈沖電流遠(yuǎn)傳信號 4～20 mA,傳輸距離為1000m

◆儀表使用環(huán)境 溫度:-25℃～+55℃ 濕度:5～90% RH50℃

  分離式渦街流量計(jì)——迪元儀表

◆材質(zhì) 不銹鋼, 鋁合金

◆電源 DC24V或鋰電池3.6V

◆防爆等級 本安型iaIIbT3-T6，防護(hù)等級 IP65

72F50-SE0AA1AAA4AA德國進(jìn)口（非導(dǎo)電液體）E+H渦街流量計(jì)

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德國進(jìn)口（非導(dǎo)電液體）E+H渦街流量計(jì)原理：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，旋渦列在旋渦發(fā)生體下游非對稱地排列。

渦街流量計(jì)是根據(jù)卡門渦街原理（Kármán Vortex Street）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(jì)。并可作為流量變送器應(yīng)用于自動化控制系統(tǒng)中。

渦街流量計(jì)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：

式中:為旋渦

德國進(jìn)口（非導(dǎo)電液體）E+H渦街流量計(jì)

72F1H-SE3AD1AAA4AA  72F2H-SE3AD1AAA4AA  91WA1-BA2B10AKA4AA  91WA1-BA2B10AKA4AA

72F80-SE0AA1CAA4AW  50W1H-UC0A1AA0AAAW  50W1F-HA0A1AA0AAAW  80M50-AS2AAAAAAAAA

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10P40-EA0A1AA0A4AA   10P65-EC0A1AA0A4AA  50P15-EA0A1AA0AAAW  83A02-ASVWAAAAAAAA

E+H渦街流量計(jì)也稱之為旋渦流量計(jì)或卡門渦街流量計(jì)。綜合吸收發(fā)達(dá)國家*技術(shù)和總結(jié)多年研究生產(chǎn)經(jīng)驗(yàn)的基礎(chǔ)上進(jìn)行精心設(shè)計(jì)的產(chǎn)品，實(shí)現(xiàn)了產(chǎn)品智能化、標(biāo)準(zhǔn)化、系列化、通用化、生產(chǎn)模具化、確保產(chǎn)品質(zhì)量的美觀性。該產(chǎn)品具有電路*、功耗微低、量程比寬、結(jié)構(gòu)簡單、阻力損失小、堅(jiān)固耐用、用途廣、使用壽命長、工作穩(wěn)定、便于安裝調(diào)試等特點(diǎn)。

參數(shù)及要求

◆測量介質(zhì)： 氣體、液體、蒸氣

  溫壓補(bǔ)償型渦街流量計(jì)——迪元儀表

◆連接方式：法蘭卡裝式、法蘭式、插入式

◆口徑規(guī)格 法蘭卡裝式口徑選擇 25,32,50,80,10

◆法蘭連接式口徑選擇 100,150,200

◆流量測量范圍 正常測量流速范圍 雷諾數(shù)1.5×104～4×106；氣體5～50m/s; 液體0.5～7m/s

正常測量流量范圍 液體、氣體流量測量范圍見表2； 蒸氣流量范圍見表3

◆測量精度 1.0級 1.5級

◆被測介質(zhì)溫度:常溫–25℃～100℃，高溫–25℃～150℃ -25℃～250℃

◆輸出信號 脈沖電壓輸出信號 高電平8～10V 低電平0.7～1.3V

◆脈沖占空比約50%,傳輸距離為100m

◆脈沖電流遠(yuǎn)傳信號 4～20 mA,傳輸距離為1000m

◆儀表使用環(huán)境 溫度:-25℃～+55℃ 濕度:5～90% RH50℃

  分離式渦街流量計(jì)——迪元儀表

◆材質(zhì) 不銹鋼, 鋁合金

◆電源 DC24V或鋰電池3.6V

◆防爆等級 本安型iaIIbT3-T6，防護(hù)等級 IP65

72F50-SE0AA1AAA4AA德國進(jìn)口（非導(dǎo)電液體）E+H渦街流量計(jì)

72F40-SE0AA1DAA4AW  72F25-SE0AA1DAA4AW  72F1H-SE0AA1DAA4AW  72F80-T56AA12AA4AW

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50W1F-UC0A1AA0AAAA  91WA1-AA2B12ACA4AA  91WA1-AA3B12ACA4AA  10P1H-EC1A1AA0A4AA

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50H04-DB1A1AA0A3AA  50H08-DAOA1AAOA4AA  50H08-DA0A1AA0A3AA  72W1F-SE0AA1AAA4AA

50P25-EA1A1AA0ABAA  50W1F-UC0A1AA0ABAA  50W2H-UD0A1AA0ABAA   65F40-BE2AG1AAAAAA

德國進(jìn)口（非導(dǎo)電液體）E+H渦街流量計(jì)

50P50-EA1A1AA0BAAA  50P80-EA1A1AA0BAAA  80M50-AS2AABAAAAA8  73F2H-SD4AA1AAA4AA

10W50-UA0A1AA0A4AA  50w50-UA0A1AA0AAAW  53P15-EL2B1BG1BGAK  50P2H-EC0A1AA0AAA3

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10P32-EA0A1AA0A4AA  10P80-EC1A1AA0B4AA  10P50-EA1A1AA0A4AA  50P1H-EA0A1AA0AAAA

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50P80-EA1A1AA0BAAA  80M50-AS2AABAAAAA8  50W1H-HC0A1AA0AAAW  50P15-EA0A1AA0AAAW

10P32-EA0A1AA0A4AA  50W50-UA0A1AA0AAAW  91WA1-AA2A10ACA4AA  53P2H-EC0B1AA0AAAA

93WA2-AB3B10ACAAAA  5BH08-VF0A1AB041A1  53H40-1F0B1AA0ADAA  72F50-SE0AA1AAA4AA

72F1F-SE0AA1AAA4AA  72F2H-SE0AA1AAA4AA  10W40-UA0A1AA0A4AA  10W1Z-UC0A1AA0A4AA

德國進(jìn)口（非導(dǎo)電液體）E+H渦街流量計(jì)原理：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，旋渦列在旋渦發(fā)生體下游非對稱地排列。

渦街流量計(jì)是根據(jù)卡門渦街原理（Kármán Vortex Street）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(jì)。并可作為流量變送器應(yīng)用于自動化控制系統(tǒng)中。

渦街流量計(jì)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：

式中:為旋渦的釋放頻率，單位為Hz；v為流過旋渦發(fā)生體的流體平均速度，單位為m/s；d為旋渦發(fā)生體特征寬度，單位為m；Sr為斯特勞哈爾數(shù)（Strouhal number），無量綱，它的數(shù)值范圍為0.14－0.27。

St是雷諾數(shù)的函數(shù)。

當(dāng)雷諾數(shù)Re在范圍內(nèi)，St值約為0.2。在測量中，要盡量滿足流體的雷諾數(shù)在，此時旋渦頻率。

由此，通過測量旋渦頻率就可以計(jì)算出流過旋渦發(fā)生體的流體平均速度v，再由式可以求出流量q，其中A為流體流過旋渦發(fā)生體的截面積。

的釋放頻率，單位為Hz；v為流過旋渦發(fā)生體的流體平均速度，單位為m/s；d為旋渦發(fā)生體特征寬度，單位為m；Sr為斯特勞哈爾數(shù)（Strouhal number），無量綱，它的數(shù)值范圍為0.14－0.27。

St是雷諾數(shù)的函數(shù)。

當(dāng)雷諾數(shù)Re在范圍內(nèi)，St值約為0.2。在測量中，要盡量滿足流體的雷諾數(shù)在，此時旋渦頻率。

由此，通過測量旋渦頻率就可以計(jì)算出流過旋渦發(fā)生體的流體平均速度v，再由式可以求出流量q，其中A為流體流過旋渦發(fā)生體的截面積。