Refrigeration control method of air conditioner and condenser

Abstract

The invention relates to the technical field of air conditioning, in particular to a refrigeration control method of an air conditioner and a condenser. The present invention aims to solve the problem that the existing air conditioner cannot adjust the degree of supercooling. For this purpose, the control method of the present invention includes: determining the target subcooling degree of the air conditioner based on the outdoor ambient temperature; calculating the actual subcooling degree of the air conditioner; comparing the size of the actual subcooling degree and the target subcooling degree; based on the comparison result , and selectively adjust the opening and closing of several subcooling valves to adjust the effective length of the subcooling pipe section. The control method of the present application can adjust the subcooling degree of the air conditioner and improve the refrigeration energy efficiency.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a refrigeration control method of an air conditioner and a condenser. Background technique [0002] When the air conditioner is running, the outlet of the condenser will be set to a certain degree of subcooling, so as to prevent the liquid refrigerant from flashing in the condenser and affecting the cooling effect. [0003] In existing air conditioners, subcooling in the condensation process is usually achieved by arranging a subcooling section at the end of the condenser coil. However, during the cooling process of the air conditioner, the difference in the outdoor ambient temperature will cause the air conditioning system to have different requirements for the subcooling degree of the outdoor condenser. However, since the pipeline of the existing condenser is fixed, once it leaves the factory, the degree of subcooling cannot be adjusted. Therefore, the existing air co...

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Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the existing air conditioner cannot adjust the subcooling degree, the present invention provides a cooling control method for the air conditioner, the air conditioner includes a compressor, a condenser , a regulating valve and an evaporator, the condenser includes a heat exchange pipe section, a supercooling pipe section, a supercooling connecting pipe and several supercooling valves, the first end of the supercooling pipe section passes through the regulating valve and the evaporator connection, the first end and the second end of the subcooling pipe section are divided into n subcooling sections by the plurality of subcooling valves, and each of the plurality of subcooling sections is connected through a subcooling connection The tube is connected to the heat exchange tube section, and the control method includes:

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