High-torque valve torque monitoring system

Abstract

The invention provides a high-torque valve torque monitoring system. A low torque worm couple and a torque amplifying mechanism are additionally arranged between a motor and a high torque worm couple, a method of reducing speed and increasing torque is adopted to drive a high-torque valve, the torque of valve passes through the device, speed increase and torque reduction are reflected by axial movement of the worm shaft of the low torque worm couple, and axial displacement of the worm is detected, and then linear transformation is carried out, so as to calculate the actual torque of the valve, thus the detection method is not only accurate, but also ensures that the cost for detecting high torque is reduced. Besides, the wireless communication way is adopted to exchange data with a personal computer (PC) or notebook computer, remote real-time action control on the valve can be realized, and the dynamic torque, stroke and related alarm information of valve can be monitored in real time. The system carries out real-time quantitative analysis and complete detection analysis on the torque of the valve in the operational process, and complete data basis is provided for improving the valve torque design level and the product quality level and prolonging the service life.

Description

technical field [0001] The invention belongs to the field of valve torque monitoring, in particular to a large torque valve torque monitoring system. Background technique [0002] The torque of the valve refers to the force or torque that must be applied to make the valve open or close. During the operation of the valve, due to the pressure force on the valve formed by the difference in pressure difference between the two ends of the valve in the pipeline, as well as the valve stem and packing, valve plate and valve seat and other friction forces, it is necessary to apply certain actions to the valve. torque. During the action of the valve, the required opening or closing torque changes dynamically. [0003] In order to monitor the dynamic torque change of the valve, assess the overall performance of the valve, and protect the valve during operation, it is necessary to monitor the dynamic torque of the valve in real time and accurately, and to control the valve according t...

AI Technical Summary

Problems solved by technology

[0004] The original detection method is to install a dynamic torque sensor on the large output shaft and the measured valve to directly measure the torque during the valve action process. This measurement method is relatively simple and practical for small torque valves, but due to the processing technology of the dynamic torque sensor itself And the limitation of the measurement method, the torque of the valve exceeding 50,000 N.m cannot be measured by this method

Therefore, this measurement method has certain limitations, and the scope of application is limited.

In addition, most of the existing online monitoring systems are wired monitoring methods, and it is impossible to realize remote real-time dynamic monitoring of valve torque.

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