MULTIPLES SELF CONTROLLED VALVE SYSTEM AND CONTROL METHOD OF VALVE USING THEREOF

摘要

The present invention relates to a multiple self-control system, which is installed in each pipe for conveying a fluid and is capable of controlling a flow rate by promptly and accurately compensating for an opening degree of an unit valve according to a difference between an indicated flow rate value and a measured flow rate value of each unit valve, and a valve control method using the same. The multi self-control valve system of the present invention comprises: a plurality of unit valves which include a valve piece connected to a plurality of pipes for conveying a fluid, the valve piece being provided inside the pipe to control a flow rate of the fluid, and a valve shaft connected to one side of the valve piece to rotate the valve piece; a driving part which opens the unit valve by rotating the valve shaft of the unit valve; a main control part which instructs each flow rate to the plurality of unit valves; a flow rate measurement device which is connected to one side of the pipe to measure the flow rate; and an unit control part which is connected to each unit valve to open the unit valve by driving the driving part according to an instruction of the main control part, compares the measured flow rate value of the flow rate measurement device with the instructed flow rate of the main control part, and controls the opening degree of the unit valve.