Title:
VALVE STATE MONITORING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/235599
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a valve state monitoring system which can be easily retrofitted to various existing or operating valves (rotating valves), actuators, and particularly even to a facility not being supplied with commercial power supply, and with which it is possible to perform detailed and accurate state monitoring, diagnosis, or failure prediction of the valves and actuators. The valve state monitoring system performs state monitoring, diagnosis, and lifetime prediction with respect to a valve on the basis of angular velocity data of a valve shaft for opening and closing the valve. A monitoring unit including at least a semiconductor-type gyro sensor is detachably attached to the valve shaft. The angular velocity data include angular velocity data, obtained from the monitoring unit, corresponding to rotating motion of a valve body from being fully open or fully closed to fully closed or fully open.
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Inventors:
INOUE YU (JP)
KAZAMA MASAHIRO (JP)
NISHIZAWA ISAO (JP)
KAZAMA MASAHIRO (JP)
NISHIZAWA ISAO (JP)
Application Number:
PCT/JP2019/022649
Publication Date:
December 12, 2019
Filing Date:
June 06, 2019
Export Citation:
Assignee:
KITZ CORP (JP)
International Classes:
F16K37/00; G05B23/02
Foreign References:
| JP2011085161A | 2011-04-28 | |||
| JP2015094587A | 2015-05-18 | |||
| JP2012241768A | 2012-12-10 |
Attorney, Agent or Firm:
KOBAYASHI Tetsuo (JP)
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