JP2013210703A5 - - Google Patents

Claims (10)

  Regularly compare the predicted value of the change in process amount due to aging deterioration of the plant equipment constituting the plant and the measured value of the process quantity of plant equipment, and compare the predicted value corresponding to the aging at the time of comparison with the predicted value at the time of comparison. An aged failure sign determination system for a plant device that determines that there is a sign of failure due to aging if a difference from the actual measurement value is a predetermined amount or more.   The aging deterioration failure sign determination system for a plant device according to claim 1, wherein an operator station that inputs an actually measured process amount of the plant device and monitors and controls the plant has a process amount associated with the aging deterioration of the plant device. The predicted value of change and the actual measured value of the process amount of the plant equipment are periodically compared, and if the difference between the predicted value corresponding to the age at the time of comparison and the actual measured value at the time of comparison is equal to or greater than a predetermined amount, An aged deterioration sign system for plant equipment characterized by determining that there is a sign of failure due to deterioration.   The plant equipment aging deterioration according to claim 1 or 2, wherein the determined aging deterioration fault sign and the cause thereof are stored in a database in association with each other. Failure sign determination system.   4. The plant equipment aging deterioration failure sign determination system according to claim 3, wherein a failure sign due to actual aging deterioration is detected by monitoring the causal process data from data stored in the database. An aged deterioration sign determination system for plant equipment.   A plant equipment aging deterioration failure sign determination system according to claim 3, wherein by analyzing data stored in the database, a cause matter that frequently appears as a cause is proposed as an improvement point. Aged deterioration failure sign determination system. In the aging deterioration fault symptom determination system of the plant equipment according to claim 1, an alarm is output if a difference between the predicted value corresponding to the aging at the time of comparison and the measured value at the time of comparison is a predetermined amount or more. the plant equipment aging failure sign determination system of the plant equipment and outputs the operation guidance constituting the plant. In aging failure sign determination system plant equipment according to claim 6, to calculate the predicted value of the process of changes associated with aging of the plant equipment whenever outputting the alarm and the operation guidance A system for judging signs of aging failure of plant equipment.   In the plant equipment aging deterioration failure sign determination system according to any one of claims 1 to 6, there is a sign of failure due to aging deterioration if a difference between the predicted value and the actual measurement value is equal to or greater than a reference value. A system for judging signs of deterioration over time of plant equipment that is judged to be a thing.   In the aging deterioration fault symptom determination system of the plant equipment as described in any one of Claims 1-6, if the integral value of the difference of the said predicted value and the said actual measurement value is more than a reference value, the failure of aging deterioration A system for determining signs of deterioration over time of plant equipment that determines that there are signs.   In the aging deterioration fault symptom determination system of the plant equipment as described in any one of Claims 1-6, if the degree of change of the difference between the predicted value and the actual measurement value is greater than or equal to a reference value, a failure due to aging deterioration A system for determining signs of deterioration over time of plant equipment that determines that there are signs of aging.