Electric valve control device capable of realizing intelligent control

Abstract

The invention discloses an electric valve control device capable of realizing intelligent control, which belongs to the technical field of automation control. One end of the auxiliary contacts of an AC contactor, a thermal relay and a travel switch is respectively connected on different switching value remote-signalling input terminals of an intelligent motor protection controller, a change-over switch is arranged between a stop button and the A phase of a power supply, a first terminal and a second terminal of the change-over switch are connected with the A phase of the power supply, a fourth terminal of the change-over switch is connected with one end of the stop button, the second terminal of the change-over switch is connected with one path of switching value remote-signalling input terminal of the intelligent motor protection controller and an output power supply control terminal, and a signal lamp of the intelligent motor protection controller is connected with a start button. The control of an electric valve realizes remote control and local control, and a control signal and a running signal of the valve can be transmitted by a communication mode, so that the valve can realize electric linkage control, and the running state of the valve can be monitored on an upper computer.

Description

technical field [0001] The invention relates to a valve control device, in particular to an electric valve control device capable of realizing intelligent control, which belongs to the technical field of automatic control. Background technique [0002] The electric drive valve is a commonly used drive mode valve, and the drive device of this drive form is usually called a valve electric device. The body control of this device has a separate control device, and the equipment manufacturer generally provides a complete set with the valve. Electric valves are generally installed on transmission pipelines, mainly to control the switching of gases, liquids, solids and other substances. The control of valves often needs to be interlocked with gas signals, liquid signals, material level signals, etc. or in some processes, The electric valve needs to be started in chain with other electrical equipment, etc. Therefore, the control signal of the electric valve must be collected on site...

AI Technical Summary

Problems solved by technology

Electric valves are generally installed on transmission pipelines, mainly to control the switching of gases, liquids, solids and other substances. The control of valves often needs to be interlocked with gas signals, liquid signals, material level signals, etc. or in some processes, The electric valve needs to be started in chain with other electrical equipment, etc. Therefore, the control signal of the electric valve must be collected on site to complete the control requirements of the electric valve and be able to be networked with the distributed control system (DCS) of the whole plant. The valve control device provided by the supplier does not have the function of signal acquisition and transmission, but only controls the main body equipment alone. The control system supporting the electric valve cannot realize electrical interlocking and cannot be networked with the control system of the whole plant. Therefore, a method that can quickly collect and drive electric valves is needed installation

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