Multiphase Coriolis flowmeter
First Claim
Patent Images
1. A flowmeter comprising:
- a vibratable flowtube;
a driver connected to the flowtube and operable to impart motion to the flowtube;
a sensor connected to the flowtube and operable to sense the motion of the flowtube and generate a sensor signal; and
a controller connected to receive the sensor signal, the controller being operable to determine a first flow rate of a first phase within a two-phase flow through the flowtube and determine a second flow rate of a second phase within the two-phase flow.
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Abstract
A flowmeter is disclosed. The flowmeter includes a vibratable flowtube, and a driver connected to the flowtube that is operable to impart motion to the flowtube. A sensor is connected to the flowtube and is operable to sense the motion of the flowtube and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to determine a first flow rate of a first phase within a two-phase flow through the flowtube and determine a second flow rate of a second phase within the two-phase flow.
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Citations
35 Claims
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1. A flowmeter comprising:
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a vibratable flowtube; a driver connected to the flowtube and operable to impart motion to the flowtube; a sensor connected to the flowtube and operable to sense the motion of the flowtube and generate a sensor signal; and a controller connected to receive the sensor signal, the controller being operable to determine a first flow rate of a first phase within a two-phase flow through the flowtube and determine a second flow rate of a second phase within the two-phase flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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determining a bulk density of a two-phase flow through a flowtube, the two-phase flow including a first phase and a second phase; determining a bulk mass flow rate of the two-phase flow; and determining a first mass flow rate of the first phase, based on the bulk density and the bulk mass flow rate.
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20. A flowmeter controller comprising:
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a density correction system operable to input an apparent density of a two-phase flow and output a corrected density of the two-phase flow, the two-phase flow including a first phase and a second phase; a mass flow rate correction system operable to input an apparent mass flow rate of the two-phase flow and output a corrected mass flow rate of the two-phase flow; and a flow component mass flow rate determination system operable to determine a first mass flow rate of the first phase, based on the corrected density and the corrected mass flow rate.
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21. A method comprising:
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passing a two-phase flow through a vibratable flowtube, the two-phase flow having a first phase and a second phase; imparting motion to the flowtube using a driver; sensing the motion of the flowtube using a sensor; determining a first flow rate of the first phase within the two-phase flow passing through the flowtube; and determining a second flow rate of the second phase within the two-phase flow passing through the flowtube. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A flowmeter comprising:
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a vibratable flowtube; a driver connected to the flowtube and operable to impart motion to the flowtube; a sensor connected to the flowtube and operable to sense the motion of the flowtube and generate a sensor signal; and a controller connected to receive the sensor signal, the controller being operable to determine a bulk density of a two-phase flow through a flowtube, the two-phase flow including a first phase and a second phase, determine a bulk mass flow rate of the two-phase flow, and determine a first mass flow rate of the first phase, based on the bulk density and the bulk mass flow rate.
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35. A method comprising:
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correcting an apparent density of a two-phase flow to obtain a corrected density of the two-phase flow, the two-phase flow including a first phase and a second phase; correcting an apparent mass flow rate of the two-phase flow to obtain a corrected mass flow rate of the two-phase flow; and determining a mass flow rate of the first phase, based on the corrected density and the corrected mass flow rate of the two-phase flow.
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Specification