Valve actuating mechanism with self-diagnostic function and intelligent valve actuating mechanism

Abstract

A valve actuator in accordance with the present invention can be constructed as self-diagnosis valve actuator, which operates a valve to control the opening and closing state of a passage based on the status data from various sensors, for diagnosing deterioration of the device itself, and predicting the replacement time of female screw, seal and the like and estimating operating state so as to realize maintenance on self-diagnosis. This valve actuator may also be constructed as an intelligent valve actuator, which operates the valve to self-control the opening and closing state of a passage based on the status data from various sensors, for diagnosing deterioration of the device itself and predicting the replacement time of female screw, seal and the like and estimating operating state so as to realize operation and maintenance.

Description

technical field [0001] The present invention relates to a valve actuating mechanism for moving up and down a valve such as a water gate, a door body, a gate, a valve body, etc. A valve actuating mechanism with self-diagnosis function that detects the running state of the torque detection, the wear state of the internal thread, etc., and the state of the drive system; and the intelligent type that controls itself to an appropriate state through the drive device based on various detection information valve actuation mechanism. Background technique [0002] The present invention relates to a kind of valve actuating mechanism (valve actuator) that makes the valve such as water gate, door body, gate, valve body etc. Monitor the operating status of valve position detection, torque detection, etc., drive system status such as internal thread wear status, valve actuation mechanism with self-diagnosis function, and intelligent valve actuation mechanism. [0003] All along, waterway...

AI Technical Summary

Problems solved by technology

[0011] In addition, existing abnormality diagnosis and deterioration prediction devices such as thread wear amount detection devices have problems. For example, devices that use reference threads to detect gaps must manufacture reference threads with high precision, and at the same time, complicated procedures must be performed to install the reference threads. structure, cost increases

Furthermore, the thread wear detection device that detects the load-torque curve of the thread and calculates the wear amount of the internal thread according to the change of the torque caused by the increase of the gap of the thread, when using the torque waveform to analyze the wear of the internal thread, is the same as The difference between the normal torque waveforms is difficult to distinguish, and there is a problem that the wear of the internal thread cannot be detected with high precision

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