Intelligent actuator for remotely operable valve control

Abstract

The invention discloses an intelligent actuator for remote operable valve control. The intelligent actuator comprises a shell, a driving unit and a speed adjusting unit. A fixing plate is fixed to the upper side in the shell, a controller and a wireless receiving module are installed on the left side of the upper surface of the shell, the controller is electrically connected with the wireless receiving module, a mounting frame is fixed to the lower surface of the shell, and a valve is fixed to the mounting frame through bolts; the driving unit comprises a gear motor, a driving gear, a transmission rod, a fixed rod, an output shaft, a moving shaft and a transmission gear, the actuator can receive remote control signals and can be remotely controlled, control over the valve in industrial production is facilitated, and the intelligent actuator is convenient to operate and high in practicability. And the valve can be quickly closed after pipeline leakage or production is finished, so that more media are prevented from flowing through the valve during pipeline leakage or after production is finished, a large amount of media are prevented from being wasted, and the valve is convenient to use.

Description

technical field [0001] The invention relates to the technical field of actuators, in particular to an intelligent actuator for remotely operable valve control. Background technique [0002] The actuator is an essential and important part of the automatic control system. Its function is to accept the control signal sent by the controller, change the size of the controlled medium, so as to maintain the controlled variable at the required value or within a certain range. According to its energy form, actuators can be divided into three categories: pneumatic, hydraulic and electric. Pneumatic actuators use compressed air as an energy source, and are characterized by simple structure, reliable and stable action, large output thrust, convenient maintenance, fire and explosion protection, and low price, so they are widely used in chemical, papermaking, oil refining and other production processes. It can be conveniently used in conjunction with passive instruments. The actuator is...

AI Technical Summary

Problems solved by technology

Pneumatic actuators use compressed air as an energy source, and are characterized by simple structure, reliable and stable action, large output thrust, convenient maintenance, fire and explosion protection, and low price, so they are widely used in chemical, papermaking, oil refining and other production processes. It can be conveniently used in conjunction with passive instruments. The actuator is a common part of instrument automation in industrial production. It is used to change the flow rate of the controlled medium, and at the same time automatically close the valve to cut off the pipeline after industrial production or when special circumstances occur. However, in order to accurately control the size of the medium flow inside the existing actuator, a deceleration mechanism is usually used inside to reduce the speed of the output shaft of the deceleration motor to achieve the accuracy of medium flow control. However, after the pipeline leaks or the production is completed , the driving speed of the actuator is slow, resulting in the slow closing speed of the valve, causing a large amount of medium to flow during the closing process of the valve, which is easy to cause waste of medium, and the existing actuators do not have the ability to operate remotely. Function, when it is controlled, it must be controlled at the scene, which is troublesome to use and not convenient for industrial production

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