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1. (WO2018127735) ELECTROMAGNETIC FLOWMETER AND METHOD OF OPERATING THE ELECTROMAGNETIC FLOWMETER FOR DETECTING FLOW OF MULTIPHASE FLUIDS
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Pub. No.: WO/2018/127735 International Application No.: PCT/IB2017/050005
Publication Date: 12.07.2018 International Filing Date: 03.01.2017
IPC:
G01F 1/58 (2006.01) ,G01F 1/74 (2006.01) ,G01F 23/26 (2006.01)
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
56
by using electric or magnetic effects
58
by electromagnetic flowmeters
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
74
Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23
Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
22
by measurement of physical variables, other than linear dimensions, pressure, or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
26
by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
Applicants:
ABB SCHWEIZ AG [CH/CH]; Brown Boveri Strasse 6 5400 Baden, CH
Inventors:
DASGUPTA, Subhashish; IN
KANDASAMY, Ravikumar; IN
KARIWALA, Vinay; IN
NENNINGER, Philipp; DE
Priority Data:
Title (EN) ELECTROMAGNETIC FLOWMETER AND METHOD OF OPERATING THE ELECTROMAGNETIC FLOWMETER FOR DETECTING FLOW OF MULTIPHASE FLUIDS
(FR) DÉBITMÈTRE ÉLECTROMAGNÉTIQUE ET PROCÉDÉ DE FONCTIONNEMENT DU DÉBITMÈTRE ÉLECTROMAGNÉTIQUE POUR DÉTECTER UN ÉCOULEMENT DE FLUIDES MULTIPHASES
Abstract:
(EN) The present invention relates to a method of operating an electromagnetic flowmeter for detecting a flow of multiphase fluids passing through a conduit and an electromagnetic flowmeter thereof. The electromagnetic flowmeter comprises two coils for generating an electromagnetic field, potential sensing electrodes for measuring potential difference values between the pair of potential sensing electrodes generated by the magnetic field in the multiphase fluids, the two coils are placed on top and bottom of the conduit. The method comprises the steps of generating magnetic fields by electrical excitation of the two coils; obtaining potential difference values between the potential sensing electrodes for the electrical excitation of the two coils; detecting a flow of multiphase flow of fluids based on a difference between the potential difference values hence obtained.
(FR) La présente invention concerne un procédé de fonctionnement d'un débitmètre électromagnétique pour détecter un écoulement de fluides multiphases passant à travers un conduit et un débitmètre électromagnétique de celui-ci. Le débitmètre électromagnétique comprend deux bobines servant à générer un champ électromagnétique, des électrodes de détection de potentiel servant à mesurer des valeurs de différence de potentiel entre la paire d'électrodes de détection de potentiel générées par le champ magnétique dans les fluides multiphases, les deux bobines étant placées au-dessus et en-dessous du conduit. Le procédé comprend les étapes consistant à générer des champs magnétiques par l'excitation électrique des deux bobines; à obtenir des valeurs de différence de potentiel entre les électrodes de détection de potentiel pour l'excitation électrique des deux bobines; et à détecter un écoulement multiphase de fluides sur la base d'une différence entre les valeurs de différence de potentiel ainsi obtenues.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)