Valve wear state grasping method and system using valve stem angular velocity

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United States of America Patent

PATENT NO 11761556
SERIAL NO

15734673

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A valve state grasping system that can be easily retrofitted to any of various existing or operating valves (rotary valves) and actuators, and in particular, even facilities to which commercial power is not supplied, and allows detailed and accurate state grasping and diagnosis or failure prediction for the valve or actuator. The valve state grasping system is configured to perform, based on angular velocity data of a valve stem which opens and closes the valve, state monitoring, diagnosis, and life prediction of this valve. To the valve stem, a monitoring unit having at least a semiconductor-type gyro sensor is attachably and detachably fixed. The angular velocity data includes angular velocity data acquired from this monitoring unit in accordance with a rotational motion of a valve body from being fully open or fully closed to fully closed or fully open.

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Patent Owner(s)

  • KITZ CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inoue, Yu Nagano, JP 10 50
Kazama, Masahiro Nagano, JP 17 150
Nishizawa, Isao Chiba, JP 3 2

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