SUP-LUGB Vortex flowmeter tsis muaj qhov kub thiab txias
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Kev ntsuas txoj cai
Cov kua dej ntws nrog qee qhov nrawm thiab dhau qhov kev cuam tshuam ruaj khov tsim cov vortices.Lub cim ntawm vortices yog hu ua Karman's Vortices.Qhov zaus ntawm vortex shedding yog ib qho kev ua haujlwm ncaj qha ntawm cov kua dej tshaj tawm thiab zaus nyob ntawm cov duab thiab lub ntsej muag dav ntawm lub cev bluff.
Txij li qhov dav ntawm qhov thaiv thiab sab hauv txoj kab uas hla ntawm cov yeeb nkab yuav ntau dua los yog tsawg, qhov zaus tau muab los ntawm kev qhia:
f=StV/d
Hauv cov qauv:
f - Karman vortex zaus tsim ntawm ib sab ntawm lub cev bluff (Hz)
St – strouhal tus lej (tsis yog tus lej)
V - nruab nrab ceev ntawm cov kua (m / s)
d - qhov dav ntawm lub cev bluff (m)
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Kev teeb tsa
Wafer kev twb kev txuas: DN15-DN300 (qhov tseem ceeb PN2.5MPa)
Flange kev twb kev txuas: DN15-DN50 (qhov tseem ceeb PN2.5MPa)
DN65-DN200 (qhov tseem ceeb PN1.6MPa)
DN250-DN300 (qhov tseem ceeb PN1.0MPa)
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Qhov tseeb
Gas tsis them nyiaj: DN15-DN25–1.5%, DN32-DN200–1.0%, DN250-DN300–1.5%
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Range Ratio
Gas ceev: 1.2kg / m3, Qhov sib piv: 8: 1
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Nruab nrab kub
-20 ° C ~ + 150 ° C, -20 ° C ~ + 260 ° C, -20 ° C ~ + 300 ° C
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Fais fab mov
24VDC ± 5%
Li roj teeb (3.6VDC)
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Tso zis teeb liab
4-20 mA
Ntau zaus
Kev sib txuas lus RS485 (Modbus RTU)
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Ingress tiv thaiv
IP65
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Khoom siv lub cev
Stainless hlau
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Zaub
128 * 64 teev matrix LCD
Nco tseg: cov khoom siv nruj me ntsis txwv tsis pub siv rau lub sijhawm tawg-pov thawj.