Differential pressure diagnostic for process fluid pulsations
First Claim
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1. A process pulsation diagnostic system comprising:
- a primary element for generating a differential pressure along a fluid flow;
a sensor for sampling the differential pressure; and
a processor for generating a pulsation diagnostic based on a standard deviation of the differential pressure, such that the pulsation diagnostic is indicative of a degree of process pulsation in the fluid flow.
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Abstract
A process pulsation diagnostic system comprises a primary element, a sensor and a processor. The primary element generates a differential pressure along a fluid flow. The sensor samples the differential pressure. The processor generates a pulsation diagnostic based on a standard deviation of the differential pressure, such that the pulsation diagnostic is indicative of a degree of process pulsation in the fluid flow.
63 Citations
27 Claims
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1. A process pulsation diagnostic system comprising:
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a primary element for generating a differential pressure along a fluid flow; a sensor for sampling the differential pressure; and a processor for generating a pulsation diagnostic based on a standard deviation of the differential pressure, such that the pulsation diagnostic is indicative of a degree of process pulsation in the fluid flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for monitoring process pulsations, the method comprising:
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sampling a differential pressure along a fluid flow at a sampling rate; and generating a pulsation diagnostic as a function of the differential pressure, such that a change in the pulsation diagnostic is indicative of a change in the process pulsations; wherein the sampling rate is less than twice a frequency of the process pulsation. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A pressure monitoring device comprising:
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a sensor for monitoring process pulsations in a differential pressure; a signal processor for generating a process pressure value from the differential pressure; a statistical processor for generating a pulsation diagnostic based on the differential pressure, such that the pulsation diagnostic is correlated with changes in the process pulsations; and an interface for transmitting the process pressure value and the pulsation diagnostic to a process system controller. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification