Method for controlling electronic expansion valve in air conditioner system
An electronic expansion valve and air-conditioning system technology, applied in the field of air-conditioning, to achieve the effects of reducing equipment costs, reliable protection and safe operation, and simplifying control methods
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[0019] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0020] The control method of the electronic expansion valve 3 in the air-conditioning system of the present invention can ensure that the refrigerant flow rate and throttling degree of the water-water heat exchange air-conditioning equipment can be automatically adjusted according to the working conditions, and the protection system operates in the most suitable state. Such as figure 1 As shown, according to the operating principle of the system, as the water temperature continues to rise, the system suction temperature, pressure and refrigerant flow rate are constantly changing. Due to this dynamic change, the system has to perform real-time adaptive operation control , in which the electronic expansion valve 3 control plays a key role. Install temperature sensors at relevant positions, including compressor 1 suction temperature sensor, electronic expansion valve 3 ...
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