Process and apparatus for determining flow rate of a flow medium in a flow line
AssigneeMaraven, S.A.
InventorTerence Wright
Life of this patent
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Abstract
The present invention relates to a process and system for continuously monitoring and calculating the flow rate of a fluid medium in a flow line. The system includes a camera for viewing and capturing an image of a chart having different colored trace lines representing manometric pressure upstream of an orifice in a plate in the flow line and differential pressure across the orifice plate, a color filter for creating a modified image of the chart, an electronic digitizer for digitizing the images, and a microprocessor for determining the fluid flow rate from the captured and/or modified images. The system also includes monitors for displaying any of the iamges and manually operated devices for editing the images and for providing the microprocessor with instructions.
Claims24
A process for continuously monitoring and calculating the flow rate of a fluid medium in a flow line having an orifice plate positioned therein which comprises transcribing a first trace line representing manometric pressure upstream of the orifice and a second line representing differential pressure across the orifice on a chart associated with a recording device, said first and second trace lines having different colors;
- optically scanning said trace lines and said chart and capturing a first image of said lines and said chart;
- digitizing said first image;
- and determining said flow rate of said fluid medium in said flow line by interpreting said digitized first image.
A system for continuously monitoring and calculating the flow rate of a fluid medium in a flow line having an orifice plate positioned therein which comprises:
- means for transcribing a first line having a first color and representing manometric pressure upstream of the orifice and a second line having a second color and representing differential pressure across said orifice on a chart associated with a recording device;
- means for optically scanning said trace lines and said chart and for capturing a first image of said lines and said chart;
- means for digitizing said image;
- and means for processing said digitized image to obtain said flow rate.
Dependencies are inferred from the claim text.