Air-conditioning air-cooling unit control method and air-conditioning

Abstract

The invention belongs to the technical field of air conditioning, and aims to solve the problem that the existing air-cooling air-cooling unit cannot match the air-cooling unit and the air-conditioning system to the best state when adjusting the speed of the fan, and cannot ensure that the compressor is in the optimal operating state. The problem. For this reason, the present invention provides a kind of control method of air-conditioning air-cooled unit, and this air-cooled unit comprises fan and the compressor that is connected with fan, and this control method comprises the following steps: under the condition that air-cooled unit is running, detect compressor The inlet pressure and exhaust pressure of the compressor; calculate the pressure difference between the exhaust pressure of the compressor and the inlet pressure; adjust the speed of the fan in real time according to the exhaust pressure and the pressure difference. The invention can adjust the speed of the fan by judging the change of the pressure difference, avoiding poor oil return of the unit caused by too small pressure difference, excessive power consumption of the unit and failure of the unit caused by too large pressure difference, so that the compressor is always in the optimal working condition, improving The stability and reliability of unit operation.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and specifically provides a method for controlling an air-cooled unit of an air conditioner and an air conditioner. Background technique [0002] Classified according to cooling / heating methods, air conditioners include cooling-only air conditioners and cooling and heating air conditioners. Among them, the working principle of the single-cooling air conditioner is: firstly, the hot air in the room is sucked into the evaporator, and the hot air entering the evaporator is cooled by the vaporization of the refrigerant, and the cooled air is re-sent by the fan. Indoors, the purpose of reducing the indoor ambient temperature is achieved through such a cycle. Generally, when the speed of the fan is adjusted, the discharge pressure of the compressor will also change accordingly. When the discharge pressure of the compressor is too high, the load of the compressor will increase, and the compres...

AI Technical Summary

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 air-cooling unit and the air-conditioning system cannot be matched to the best state when adjusting the speed of the fan in the existing air-conditioning air-cooling unit, and it is impossible to ensure that the compressor is in the optimum state. Optimum health issues

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