Hitachi Water Chiller Accessories Electronic Expansion Valve G7C03588A

Hitachi water chiller accessories electronic expansion valveG7C03588A

Electronic expansion valve some people will use this thing, but for some ordinary people, it is a strange thing, so electronic expansion valve, how does this thing work, what effect does electronic expansion valve have! About these questions and small make-up together to look down! Electronic expansion valve some people will use this thing, but for some ordinary people, it is a strange thing, so electronic expansion valve, how does this thing work, what effect does electronic expansion valve have! About these questions and small make-up together to look down! Electronic expansion Valve I. What is the principle of electronic expansion valve? 1. Electronic expansion valve through the internal preset program for the evaporator to adjust the amount of liquid, because more in line with the requirements of refrigeration motor, electronic expansion valve gradually replaced the thermal expansion valve. 2. At present, there are two kinds of electronic expansion valve: electromagnetic expansion valve and electric expansion valve. The solenoid expansion valve has a solenoid coil inside, through the solenoid coil as a medium to control the flow of the system. Before the solenoid is energized, the valve needle is in an open state. After the solenoid is energized, the opening degree of the valve needle is controlled by the voltage on the solenoid coil, the voltage of solenoid coil controls the flow of expansion valve, solenoid expansion, expansion valve response is faster, usually the refrigeration system has been in an electrified state. 3. The electric expansion valve is a kind of device driven by stepping motor, which controls the movement of the valve needle driven by the thread through the logic digital signal provided to the stepping motor, thus, the control of the flow rate and the area of the valve can be realized. Two

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