Regulating valve control method, device and air conditioner

Abstract

The invention discloses a method and device for controlling a regulating valve and an air conditioner, and relates to the technical field of automatic control. The method includes the steps that a valve control signal is sent to the regulating valve, and the regulating valve is controlled to execute action corresponding to the valve control signal; a valve state feedback signal sent by the regulating valve is received; according to the valve state feedback signal, whether the regulating valve acts in place or not is judged; if yes, the valve control signal is stopped from being sent to the regulating valve. According to the method and device for controlling the regulating valve and the air conditioner, it can be avoided that after the regulating valve executes action to a limit position, execution is still performed continuously, physical damage to the regulating valve can be reduced, energy consumption can be reduced, the using effect of the regulating valve can be optimized, the service life of the regulating valve is prolonged, the stability of operation of a system where the regulating valve is located can be improved, and then the service life of the system is prolonged.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a control valve control method, device and air conditioner. Background technique [0002] At present, the control valve is widely used in many industries. The control valve receives the control signal output by the control unit and uses power operation to change the medium flow, pressure, temperature, liquid level and other process parameters. Regulating valves are generally composed of actuators and valves, and are suitable for air, water, steam, various corrosive media, mud, oil and other media. There are many types of regulating valves, including electric butterfly valves, electric ball valves, etc. For example, electric butterfly valves are installed in air conditioning units. At present, when controlling the regulating valve, the properties of the regulating valve itself are not analyzed, but the opening and closing control of the regulating valve is simply carrie...

AI Technical Summary

Problems solved by technology

For example, after the regulating valve performs the opening or closing action and reaches the limit position, continuing to control the regulating valve to perform the opening or closing action will not only increase power consumption and cause energy waste, but also cause physical damage to the regulating valve itself, shorten the service life, and regulate The performance of the system where the valve is located is not stable enough, which affects the service life of the system

Images