公开(公告)号：US20230194016A1

公开(公告)日：2023-06-22

申请号：US18102957

申请日：2023-01-30

Applicant: KITZ CORPORATION

Inventor： Yu INOUE ,  Isao NISHIZAWA

IPC: F16K37/00 ,  G05B23/02

CPC classification number: F16K37/0025 ,  G05B23/02 ,  F16K37/0041 ,  G05B23/0283

Abstract: The present invention is to provide 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.

公开(公告)号：US20210123543A1

公开(公告)日：2021-04-29

申请号：US15734673

申请日：2019-06-06

Applicant: KITZ CORPORATION

Inventor： Yu INOUE ,  Masahiro KAZAMA ,  Isao NISHIZAWA

IPC: F16K37/00 ,  G05B23/02

Abstract: The present invention is to provide 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.

公开(公告)号：US20240219901A1

公开(公告)日：2024-07-04

申请号：US18566810

申请日：2022-06-10

Applicant: KITZ CORPORATION

Inventor： Isao NISHIZAWA ,  Yuu INOUE ,  Motohiro FURUYA

IPC: G05B23/02 ,  F16K37/00

CPC classification number: G05B23/0283 ,  F16K37/0083

Abstract: Degrees of abnormality of a valve and an actuator that drives the valve are estimated. An information processing system (100) according to the present invention includes an acquisition unit (110) configured to acquire angular velocity data of a rotation of a rotating shaft, the angular velocity data being detected by an angular velocity sensor, and an estimation unit (120) configured to estimate a degree of abnormality of each of an actuator (2) and a valve (3) by referring to the angular velocity data acquired by the acquisition unit (110).

公开(公告)号：US20220413454A1

公开(公告)日：2022-12-29

申请号：US17780781

申请日：2020-12-10

Applicant: KITZ CORPORATION

Inventor： Isao NISHIZAWA ,  Yuu INOUE

IPC: G05B13/02 ,  F16K37/00

Abstract: A valve state grasping system, a display device and a rotary valve, a valve state grasping program, a recording medium, and a valve state grasping method that enable efficient valve system monitoring and accumulation of information. The system includes a valve V, a sensor unit, a server including a database, a terminal device including a display unit, and a system control unit. The database includes a position information unit, a history information unit, and an inference information unit. The position information unit includes unique information and pipe attachment information, and the history information unit includes at least measurement information and diagnosis information. The system control unit accumulates information of the position information unit and information of the history information unit in association with each other and outputs predetermined inference information from the inference information unit based on information of the position information unit and information of the history information unit.