SUP-LUGB Vortex flowmeter laisi iwọn otutu & isanpada titẹ
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Ilana wiwọn
Omi ti nṣàn pẹlu iyara kan ati gbigbe idena ti o wa titi n ṣe awọn iyipo.Awọn iran ti vortices ni a mọ bi Karman's Vortices.Iwọn igbohunsafẹfẹ ti vortex sisọ jẹ iṣẹ laini taara ti iyara ito ati igbohunsafẹfẹ da lori apẹrẹ ati iwọn oju ti ara bluff.
Niwọn igba ti idinamọ ati iwọn ila opin inu ti paipu yoo jẹ diẹ sii tabi kere si igbagbogbo, igbohunsafẹfẹ ni a fun nipasẹ ikosile:
f=StV/d
Ninu agbekalẹ:
f – Igbohunsafẹfẹ Karman vortex ti ipilẹṣẹ ni ẹgbẹ kan ti ara bluff (Hz)
Nọmba St-strouhal (nọmba ti kii ṣe iwọn)
V – aropin iyara ti ito (m/s)
d – ibú ara bluff (m)
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Fifi sori ẹrọ
Wafer asopọ: DN15-DN300(PN2.5MPa pataki)
Asopọ Flange: DN15-DN50 (PN2.5MPa pataki)
DN65-DN200(PN1.6MPa pataki)
DN250-DN300(PN1.0MPa pataki)
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Yiye
Gaasi laisi isanpada: DN15-DN25–1.5%, DN32-DN200–1.0%, DN250-DN300–1.5%
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Ratio Ratio
Gaasi iwuwo: 1.2kg / m3, Range ratio: 8: 1
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Iwọn otutu Alabọde
-20°C ~ +150°C,-20°C ~ +260°C,-20°C ~ +300°C
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Ibi ti ina elekitiriki ti nwa
24VDC±5%
Batiri Li (3.6VDC)
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Ojade ifihan agbara
4-20mA
Igbohunsafẹfẹ
RS485 ibaraẹnisọrọ (Modbus RTU)
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Idaabobo ingress
IP65
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Awọn ohun elo ti ara
Irin alagbara
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Ifihan
128 * 64 aami matrix LCD
Akiyesi: ọja ti ni idinamọ muna lati ṣee lo ni awọn iṣẹlẹ imudaniloju bugbamu.