Title:
バルブシステムの診断装置、診断方法及び診断プログラム
Document Type and Number:
Japanese Patent JP7426495
Kind Code:
B2
Abstract:
A diagnosis apparatus for a valve system including a control valve, a servo valve for driving the control valve, and at least one servo module for providing a control signal based on an opening degree command value for the control valve to the servo valve is provided with: at least one opening degree detection part configured to detect an actual opening degree of the control valve; and a diagnosis part configured to acquire, from the opening degree detection part, a detected value of the actual opening degree of the control valve while a diagnostic opening degree command value is input to the at least one servo module, and diagnose an abnormality of the valve system on the basis of the detected value. The diagnostic opening degree command value changes in multiple steps between a maximum opening degree and a minimum opening degree through one or more intermediate opening degrees.
Inventors:
Sekine Kan
Tomoyuki Kojima
Hiroshi Ohara
Hiromitsu Mori
Tomoyuki Kojima
Hiroshi Ohara
Hiromitsu Mori
Application Number:
JP2022544612A
Publication Date:
February 01, 2024
Filing Date:
August 24, 2021
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
G01M13/003; F16K51/00
Domestic Patent References:
| JP2010039715A | ||||
| JP63236939A | ||||
| JP2019117122A | ||||
| JP2020008036A |
Attorney, Agent or Firm:
SSIP Patent Attorney Corporation