Power control assembly for valve electric actuating mechanism

• Main Authors: XIANGJUN FEI, JIANXIANG ZHANG
• Format: Patent
• Language: English
• Published: 09.08.2006
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; CONTROLLING; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model relates to a power control assembly for an electric actuating mechanism of a valve, which belongs to the technical field of electromechanical integration of the valve. The utility model is characterized in that the utility model is provided with a logic control circuit which uses an MCU as a core and comprises an A/D switching circuit, a D/A switching circuit, a photoelectric coupling circuit and a peripheral circuit, a man-machine interface circuit, a motor driving circuit which is composed of solid state relays and a rectifying and voltage stabilizing circuit which is used for supplying a working power supply to the control assembly. An advanced microelectronic technique is used for controlling the electric actuating mechanism of the valve, the electric actuating mechanism of the valve is controlled by the MCU, and is driven by the solid-state relays; the electric actuating mechanism of the valve (or an electric device of the valve) not only can be operated and debugged on the spot but also can receive a remote control signal to operate under the support of relevant software, and then, the signal is returned to a remote control system; thus, the utility model is the power control assembly for an electric actuating mechanism of a valve, which has the advantages of high degree of automation, open-loop control, closed-loop control and electromechanical integration.