Stop-free valve electric actuator replacing method, debugging assembly and electric actuator

Abstract

The invention discloses a stop-free valve electric actuator replacing method, a debugging assembly and an electric actuator. The method comprises the steps that an old electric actuator is separated from a valve connecting part, and specification data of a valve are obtained; the specification data comprise specification data of a valve rod and specification data of a valve boss; the specification data of the valve are checked through the debugging assembly, and a proper debugging sub-component is selected for the debugging assembly; an assembly disc of a first new electric actuator is selected on the basis of the specification data of the valve and the selected debugging sub-component; the debugging sub-component comprises a shaft sleeve and a valve rod matched with the shaft sleeve; the first new electric actuator is connected with the debugging assembly through the assembly disc, a power source is connected, and positioning debugging with the debugging assembly as a valve reference is completed; and the connection between the first new electric actuator and the debugging assembly is removed, and the first new electric actuator is connected with the valve connecting part. According to the stop-free valve electric actuator replacing method, replacement of the valve electric actuator can be achieved under the condition that a production system is not stopped.

Description

technical field

[0001] The invention relates to the technical field of electric actuators for automation instruments, in particular to a method for replacing electric actuators for valves without shutdown, a debugging component and an electric actuator. Background technique

[0002] In the industrial production process system, a large number of electric actuators are used as the operating actuators of pipeline valves to realize the opening and closing of various process media in the pipeline and the linear adjustment of the interval opening, thereby completing the automation process of the entire process system. The more common ones are boiler feed water valves in power plants, feed valves for reactors in chemical plants, etc. Under normal circumstances, the opening and closing time of the valve is very different. For example, the boiler feed water valve in a power plant needs to be kept fully open during normal operation of the generator set, and it is only urgently moved t...

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