I-SUP-LUGB Vortex flowmeter ngaphandle kwesinxephezelo sokushisa nengcindezi
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Isimiso sokulinganisa
Uketshezi olugeleza ngesivinini esithile futhi ludlule isithiyo esingaguquki kukhiqiza ama-vortices.Ukukhiqizwa kwama-vortices kwaziwa ngokuthi yi-Karman's Vortices.Imvamisa yokuchithwa kwe-vortex wumugqa oqondile wokusebenza kwesivinini soketshezi kanye nemvamisa kuncike ekubunjweni nasebubanzini bobuso bomzimba we-bluff.
Njengoba ububanzi bokuvinjwa kanye nobubanzi bangaphakathi bepayipi buzoba njalo noma buncane, imvamisa inikezwa inkulumo ethi:
f=STV/d
Kufomula:
f - Imvamisa ye-Karman vortex ekhiqizwa ohlangothini olulodwa lomzimba we-bluff (Hz)
Inombolo ye-St - strouhal (inombolo engeyona i-dimensional)
V - isivinini esimaphakathi soketshezi (m/s)
d - ububanzi bomzimba we-bluff (m)
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Ukufakwa
Ukuxhumeka kwe-wafer: DN15-DN300(priority PN2.5MPa)
Uxhumano lwe-Flange: DN15-DN50(okubalulekile PN2.5MPa)
I-DN65-DN200(Priority PN1.6MPa)
I-DN250-DN300(Priority PN1.0MPa)
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Ukunemba
Igesi ngaphandle kwesinxephezelo: DN15-DN25–1.5%, DN32-DN200–1.0%, DN250-DN300–1.5%
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I-Range Range
Ukuminyana kwegesi:1.2kg/m3, Range ratio: 8:1
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Izinga Lokushisa Eliphakathi
-20°C ~ +150°C, -20°C ~ +260°C, -20°C ~ +300°C
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Ukunikezwa kwamandla kagesi
24VDC±5%
Ibhethri ye-Li(3.6VDC)
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Isignali yokuphumayo
4-20mA
Imvamisa
Ukuxhumana kwe-RS485 (Modbus RTU)
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Ukuvikelwa kwe-Ingress
IP65
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Izinto Zomzimba
Insimbi engagqwali
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Bonisa
128*64 dot matrix LCD
Qaphela: umkhiqizo unqatshelwe ngokuphelele ukuthi usetshenziswe ezenzakalweni zokuvikela ukuqhuma.