| 摘要 |
PROBLEM TO BE SOLVED: To provide a apparatus for monitoring pressure regulator capable of accurately maintaining the replacement etc. of pressure regulators accompanying the passage of time. SOLUTION: In a predetermined initial leaning period, initial flow quantity data and initial pressure data are acquired (1A), and an initial adjustment pressure maximum value is computed, on the basis of the initial flow quantity data and the initial pressure data and stored once (1B, 14A). In the present learning period after the lapse of a prescribed period from the initial learning period, the present flow quantity data and current pressure data are acquired (1C), and the present adjustment pressure maximum value is computed on the basis of the current flow quantity data and the present pressure data (1D). The difference between the initial adjustment pressure maximum value and the present adjustment pressure maximum value is compared with the reference change width of adjustment pressure maximum values, a criterion for degradation determination, (1E), and an alarm on the degradation of pressure regulators is issued, when the difference between the initial adjustment pressure maximum value and the present adjustment pressure maximum value exceeds the reference change width of adjustment pressure maximum value (15A). COPYRIGHT: (C)2006,JPO&NCIPI
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