DETERIORATION DETERMINATION DEVICE AND METHOD FOR PRESSURE REGULATOR

PROBLEM TO BE SOLVED: To provide a deterioration determination device and method for a pressure regulator, capable of shortening a period required until deterioration determination.SOLUTION: A deterioration determination device 40 determines deterioration of primary and secondary regulators 10 and 20 and includes: a bypass passage connected with the downstream side of the primary and secondary regulators 10 and 20; a pressure sensor for detecting a gas pressure in the bypass passage; and an arithmetic display unit 43. The arithmetic display unit 43 determines deterioration of the primary and secondary regulators 10 and 20 on the basis of a measurement value of at least one of an inclination of a change in the detected pressure and the time required until the inclination of the change in pressure becomes a predetermined value or less.SELECTED DRAWING: Figure 1 【課題】劣化判断までの期間の短縮化を図ることが可能な圧力調整器の劣化判断装置及び方法を提供する。【解決手段】劣化判断装置４０は、一次及び二次調整器１０，２０の劣化を判断するものであって、一次及び二次調整器１０，２０の下流側に接続されるバイパス流路と、バイパス流路におけるガス圧力を検出する圧力センサ及び演算表示部４３とを備え、演算表示部４３は、検出された圧力の変化の傾き、及び圧力の変化の傾きが所定値以下となるまでの時間の少なくとも一方の測定値に基づいて、一次及び二次調整器１０，２０の劣化を判断する。【選択図】図１