System and method for detecting an abnormal situation associated with a reactor
First Claim
1. A method for detecting an abnormal situation associated with a reactor in a process plant, the method comprising:
- calculating first statistical data from a pressure signal indicative of pressure within a vessel of the reactor, wherein calculating the first statistical data comprises calculating at least one of a mean of the pressure signal, a standard deviation of the pressure signal, a variance of the pressure signal, a root-mean square of the pressure signal, a rate of change of the pressure signal, a range of the pressure signal, a filtered pressure signal, and a correlation associated with the pressure signal;
analyzing the first statistical data to detect whether one or more abnormal situations associated with an agitator of the reactor exist; and
generating an indicator of an abnormal situation if one or more of the one or more abnormal situations are detected.
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Abstract
A system for detecting abnormal situations associated with a reactor in a process plant receives statistical data associated with pressure within a reactor vessel. For example, a pressure sensor device disposed at least partially within the reactor vessel may generate the statistical data based on a pressure signal. The statistical data is analyzed to detect whether one or more abnormal situations associated with an agitator of the reactor exist. For example, the statistical data may be analyzed to detect whether the agitator is no longer turning, is turning at a rate that is different than expected, is out of balance, is broken, etc. If an abnormal situation is detected, an indicator of the abnormal situation may be generated.
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Citations
34 Claims
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1. A method for detecting an abnormal situation associated with a reactor in a process plant, the method comprising:
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calculating first statistical data from a pressure signal indicative of pressure within a vessel of the reactor, wherein calculating the first statistical data comprises calculating at least one of a mean of the pressure signal, a standard deviation of the pressure signal, a variance of the pressure signal, a root-mean square of the pressure signal, a rate of change of the pressure signal, a range of the pressure signal, a filtered pressure signal, and a correlation associated with the pressure signal; analyzing the first statistical data to detect whether one or more abnormal situations associated with an agitator of the reactor exist; and generating an indicator of an abnormal situation if one or more of the one or more abnormal situations are detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for detecting an abnormal situation associated with a reactor in a process plant, the system comprising:
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a statistical parameter generator to generate one or more first statistical parameters based on a first pressure signal generated by a first pressure sensor disposed at least partially within a vessel of the reactor, wherein the one or more first statistical parameters comprise at least one of a mean value of the first pressure signal, a standard deviation of the first pressure signal, a variance of the first pressure signal, root-mean square value of the first pressure signal, a rate of change of the first pressure signal, a range of the first pressure signal, a filtered first pressure signal, and a correlation associated with the first pressure signal; and an abnormal situation detector to detect at least one abnormal situation associated with an agitator of the reactor based on the one or more first statistical parameters, and to generate one or more indicators of one or more abnormal situations that are detected. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A tangible medium storing machine readable instructions, the machine readable instructions capable of causing one or more machines to:
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receive statistical data associated with pressure within a vessel of the reactor, the statistical data calculated from a pressure signal generated by a pressure sensor; analyze the statistical data to detect whether one or more abnormal situations associated with an agitator of the reactor exist; and generate an indicator of an abnormal situation if one or more of the one or more abnormal situations are detected. - View Dependent Claims (31, 32, 33, 34)
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Specification