E+H渦街流量計也稱之為旋渦流量計或卡門渦街流量計。綜合吸收發(fā)達國家技術(shù)和總結(jié)多年研究生產(chǎn)經(jīng)驗的基礎(chǔ)上進行精心設(shè)計的產(chǎn)品,實現(xiàn)了產(chǎn)品智能化、標準化、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。德國原裝E+H渦街流量計
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E+H渦街流量計也稱之為旋渦流量計或卡門渦街流量計。綜合吸收發(fā)達國家技術(shù)和總結(jié)多年研究生產(chǎn)經(jīng)驗的基礎(chǔ)上進行精心設(shè)計的產(chǎn)品,實現(xiàn)了產(chǎn)品智能化、標準化、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。
參數(shù)及要求
◆測量介質(zhì): 氣體、液體、蒸氣
溫壓補償型渦街流量計——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 1.5
◆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——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 本安型iaIIbT3-T6,防護等 IP65
72F50-SE0AA1AAA4AA德國進口(非導(dǎo)電液體)E+H渦街流量計
72F40-SE0AA1DAA4AW 72F25-SE0AA1DAA4AW 72F1H-SE0AA1DAA4AW 72F80-T56AA12AA4AW
72F80-SE0AA1DAA4AW 50H1H-0F0A1AB0AAAA 53W4H-UD0B1AA0AHAA 72F50-SE0AA1AAA4AA
91WA1-AA1B30RCC4AA 80F1H-AAASAARABFAA 10W1H-UC0A1AA0A4AA 50W1Z-UC0A1AA0AAAA
50W1F-UC0A1AA0AAAA 91WA1-AA2B12ACA4AA 91WA1-AA3B12ACA4AA 10P1H-EC1A1AA0A4AA
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50W50-UA0A1AA0AAAW 80F80-CD2SAAAAA3AA 72F80-SE0AA1AAA4AW 50H15-DB0A1AA0A3AA
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50P50-EA1A1AA0BAAA 50P80-EA1A1AA0BAAA 80M50-AS2AABAAAAA8 73F2H-SD4AA1AAA4AA
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72F1F-SE0AA1AAA4AA 72F2H-SE0AA1AAA4AA 10W40-UA0A1AA0A4AA 10W1Z-UC0A1AA0A4AA
德國進口(非導(dǎo)電液體)E+H渦街流量計原理: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。
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:
式中:為旋渦
德國進口(非導(dǎo)電液體)E+H渦街流量計
72F1H-SE3AD1AAA4AA 72F2H-SE3AD1AAA4AA 91WA1-BA2B10AKA4AA 91WA1-BA2B10AKA4AA
72F80-SE0AA1CAA4AW 50W1H-UC0A1AA0AAAW 50W1F-HA0A1AA0AAAW 80M50-AS2AAAAAAAAA
83F-40AD2SAAACAHAA 65F15-AE2AG1AAABAA 72F2H-SK0AA1CAA4AA 83I80-AD2WFBA1AGAJ
83I50-AD2WFBA1AGAJ 72F25-SE0AA1AAA4AW 91WA1-BA1B10ACA4AA 91WA1-BB1B10ACA5AA
91WA1-BB1B10ACA5AA 72F1H-SE0AA1AAA4AW 72F40-SE3AD1AAA4AA 72F1F-SE3AD1AAA4AA
72F1H-SE3AD1AAA4AA 72F2H-SE3AD1AAA4AA 80F80-AD2SAAAAADAD 50W2F-UD0A1AA0AAAA
50W1H-UC0A1AA0AAAA 50P1H-EC0A1AA0AAAA 72F50-SE0AA1AAA4AW 50W50-UA0A1AA0AAAA
72F2H-SA0AA1AAA4AW 80F80-AD2SAA4AAAAA 80F50-AD2SAA4AAAAA 53W4H-UD0B1AA0AHAA
53W2H-UD0B1AA0AHAA 53P1Z-AC0B1AA0AHAA 53P50-AA0B1AA0AHAA 72F40-SE0AA1AAA3AA
10H50-UF0A1AA0A4AA 50H1H-1F0A1AA0AAAA 50H1H-UF0A1AA0AAAA 10P25-EA0A1AA0A4AA
10P40-EA0A1AA0A4AA 10P65-EC0A1AA0A4AA 50P15-EA0A1AA0AAAW 83A02-ASVWAAAAAAAA
E+H渦街流量計也稱之為旋渦流量計或卡門渦街流量計。綜合吸收發(fā)達國家技術(shù)和總結(jié)多年研究生產(chǎn)經(jīng)驗的基礎(chǔ)上進行精心設(shè)計的產(chǎn)品,實現(xiàn)了產(chǎn)品智能化、標準化、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。德國原裝E+H渦街流量計
參數(shù)及要求
◆測量介質(zhì): 氣體、液體、蒸氣
溫壓補償型渦街流量計——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 1.5
◆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——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 本安型iaIIbT3-T6,防護等 IP65
72F50-SE0AA1AAA4AA德國進口(非導(dǎo)電液體)E+H渦街流量計
72F40-SE0AA1DAA4AW 72F25-SE0AA1DAA4AW 72F1H-SE0AA1DAA4AW 72F80-T56AA12AA4AW
72F80-SE0AA1DAA4AW 50H1H-0F0A1AB0AAAA 53W4H-UD0B1AA0AHAA 72F50-SE0AA1AAA4AA
91WA1-AA1B30RCC4AA 80F1H-AAASAARABFAA 10W1H-UC0A1AA0A4AA 50W1Z-UC0A1AA0AAAA
50W1F-UC0A1AA0AAAA 91WA1-AA2B12ACA4AA 91WA1-AA3B12ACA4AA 10P1H-EC1A1AA0A4AA
93WA2-AA3B10ACAGAA 40E15-AD2SAAAAA5AA 72F1F-SE0AA1DAA4AW 50W25-UA0A1AA0AAAW
50W50-UA0A1AA0AAAW 80F80-CD2SAAAAA3AA 72F80-SE0AA1AAA4AW 50H15-DB0A1AA0A3AA
50H04-DB1A1AA0A3AA 50H08-DAOA1AAOA4AA 50H08-DA0A1AA0A3AA 72W1F-SE0AA1AAA4AA
50P25-EA1A1AA0ABAA 50W1F-UC0A1AA0ABAA 50W2H-UD0A1AA0ABAA 65F40-BE2AG1AAAAAA
50P50-EA1A1AA0BAAA 50P80-EA1A1AA0BAAA 80M50-AS2AABAAAAA8 73F2H-SD4AA1AAA4AA
10W50-UA0A1AA0A4AA 50w50-UA0A1AA0AAAW 53P15-EL2B1BG1BGAK 50P2H-EC0A1AA0AAA3
50P50-EA0A1AA0AAAA 83M25-ASBAAABEBHAA 83M25-ASAAAABEBHAA 90WA0-AB3A10ACAAAA
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50W2H-HD0A1AK2AAAA 50W8H-HD0A1AK2AAAA 50W3H-HD0A1AK2AAAA 72F80-SE1AA1AAA4AW
10P32-EA0A1AA0A4AA 10P80-EC1A1AA0B4AA 10P50-EA1A1AA0A4AA 50P1H-EA0A1AA0AAAA
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50P80-EA1A1AA0BAAA 80M50-AS2AABAAAAA8 50W1H-HC0A1AA0AAAW 50P15-EA0A1AA0AAAW
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93WA2-AB3B10ACAAAA 5BH08-VF0A1AB041A1 53H40-1F0B1AA0ADAA 72F50-SE0AA1AAA4AA
72F1F-SE0AA1AAA4AA 72F2H-SE0AA1AAA4AA 10W40-UA0A1AA0A4AA 10W1Z-UC0A1AA0A4AA
德國進口(非導(dǎo)電液體)E+H渦街流量計原理: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。
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:
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。德國原裝E+H渦街流量計