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Vibratory flow meter and method for correcting for an entrained phase in a two-phase flow of a flow material

A flow material and flowmeter technology, applied in the direction of direct mass flowmeter, volume meter, mass flow measurement device, etc., can solve the problems of flowmeter natural or resonant frequency change, two-phase density change, bubble and particle mobility, etc.

Active Publication Date: 2010-03-03
MICRO MOTION INC
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  • Abstract
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Problems solved by technology

This may also cause a change in the natural or resonant frequency of the flowmeter and thus in the actual two-phase density
[0012] Second order factors may also have an impact on bubble and particle mobility

Method used

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  • Vibratory flow meter and method for correcting for an entrained phase in a two-phase flow of a flow material
  • Vibratory flow meter and method for correcting for an entrained phase in a two-phase flow of a flow material
  • Vibratory flow meter and method for correcting for an entrained phase in a two-phase flow of a flow material

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Embodiment Construction

[0055] Figure 1-7 and the following description depict specific examples to teach those skilled in the art how to make and use the best mode of the invention. In order to teach the principles of the present invention, certain conventional aspects have been simplified or omitted. Those skilled in the art will recognize variations from these examples that fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. As a result, the invention is not limited to the specific examples described below, but only by the claims and their equivalents.

[0056] figure 1 A vibratory flow meter 5 for correcting an entrained phase in a two-phase flow of fluid material is shown according to an embodiment of the invention. The entrained phase may comprise entrained gas. The entrained phase may include entrained solids. The following discussion focuses on en...

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Abstract

A vibratory flow meter (100) for correcting for an entrained phase in a two-phase flow of a flow material is provided. The vibratory flow meter (100) includes a flow meter assembly (10) including a driver (104) and with the vibratory flow meter (100) being configured to generate a vibrational response for the flow material. The vibratory flow meter (100) further includes and meter electronics (20) coupled to the flow meter assembly (10) and receiving the vibrational response. The meter electronics (20) is configured to generate a measured two-phase density of the two-phase flow using the vibrational response, determine the computed drive power needed by a driver (104) of the flow meter assembly (10), and calculate a density compensation factor using a liquid density of a liquid component of the two-phase flow, an entrained phase density of an entrained phase component, the measured two-phase density, and the computed drive power.

Description

technical field [0001] The present invention relates to vibratory flow meters and methods, and more particularly, to vibratory flow meters and methods for correcting an entrained phase in a two-phase flow of flowing material. Background technique [0002] Vibrating pipe sensors, such as Coriolis mass flow meters and vibrating density meters, typically work by detecting the motion of a vibrating pipe that includes flowing material. Properties related to the material in the conduit, such as mass flow, density, etc., may be determined by processing measurement signals received from motion sensors associated with the conduit. The modes of vibration of a system filled with vibrating material are generally affected by the combined mass, stiffness and damping properties of the containing pipe and the material contained therein. [0003] A typical Coriolis mass flow meter includes one or more conduits embedded in a pipeline or other transportation system and conveying materials suc...

Claims

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Application Information

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IPC IPC(8): G01F1/84
CPCG01F15/024G01F1/74G01F1/8436G01F1/8477G01F1/8413G01F1/00G01F1/84
Inventor C·B·范克莱夫J·温斯坦
Owner MICRO MOTION INC
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