Energy-saving device for air conditioner outdoor unit and energy-saving method thereof

Abstract

The present disclosure provides an energy-saving device for an air conditioner outdoor unit, which comprises: a water mist generator which is installed opposite to an air inlet of the outdoor unit for atomizing water to generate water mist, thereby sending the generated water mist to the outdoor unit along with external airflow; a water circulating system which connects the water mist generator with an external water source, so as to supply the water mist generator with water needed for atomizing; a controller which is connected to the water circulating system for controlling operational states of the water circulating system based on monitored results of the temperature at an air inlet of a condenser of the outdoor unit and the refrigerant evaporating pressure, thereby starting and stopping the generation of water mist.

1 . An energy-saving device for an air conditioner unit comprising:
 a water mist generator which is installed opposite to an air inlet of the air conditioner outdoor unit for atomizing water to generate water mist, wherein the generated water mist can enter into the outdoor unit along with external airflow;   a water circulating system which connects the water mist generator with an external water source, so as to supply the water mist generator with water needed for atomizing;   a controller which is connected to the water circulating system that controls operational states of the water circulating system based on monitoring results of the temperature at an air inlet of a condenser of the air conditioner unit and the refrigerant evaporating pressure, thereby starting or stopping the generation of water mist.   
     
     
         2 . The device according to  claim 1 , wherein the said water mist generator comprises:
 spray holes provided at opposite sides of the water mist generator in a manner that outlets of the spray holes at the opposite sides are arranged opposite to each other and each of the spray holes is connected with the water circulating system via a water pipeline, for realizing opposite spray of water mist and forming a water mist curtain on a plane of the water mist generator.   
     
     
         3 . The device according to  claim 1 , wherein the said water mist generator comprises: a plurality of water mist spray orifices each of which is connected with the water circulating system via a water pipeline, for realizing a vertically hemispherical spray of water mist towards the air inlet and forming a water mist curtain between the surface of the water mist generator and the air inlet of the air conditioner outdoor unit. 
     
     
         4 . The device according to  claim 1 , wherein the said water circulating system comprises:
 a sink which is provided below the water mist generator and connected to an external water source, and collects drips dropped from the condenser of the outdoor unit, thereby realizing the recycle of water;   a water pump which is connected to the sink, the water mist generator and the controller, and supplies the water in the sink to the water mist generator under control of the controller.   
     
     
         5 . The device according to  claim 1 , wherein the, said device further comprises:
 a temperature detection unit which is provided at the air inlet of the condenser of the outdoor unit that detects the temperature at the air inlet;   a pressure detection unit which is provide in the condenser of the air conditioner unit for that detects the refrigerant evaporating pressure;   Wherein the controller further connects the temperature detection unit and the pressure detection unit; when the value of the detected temperature T−T H ≧0 or the value of the detected pressure P−P H ≧0, the water pump is started; when T−T H ≦T 0  and P−P H ≦P 0 , the water pump is stopped working;   wherein, T H  is a predetermined temperature, P H  is a predetermined pressure, T 0  is a non-return temperature, and P 0  is a non-return pressure.   
     
     
         6 . The device according to  claim 4 , wherein when the air conditioner unit is horizontally installed, the water mist generator is located below the air inlet of the outdoor unit. 
     
     
         7 . The device according to  claim 4 , wherein, when the air conditioner unit is vertically installed, the water mist generator is located in front of the air inlet of the outdoor unit. 
     
     
         8 . The device according to  claim 4 , wherein the sink further comprises a water replenishing float for auto replenishment of external water sources. 
     
     
         9 . An energy-saving method for an air conditioner unit, wherein the method comprises:
 detecting the temperature at an air inlet of a condenser of the air conditioner outdoor unit and the refrigerant evaporating pressure;   controlling operational states of the water circulating system based on monitoring results of the temperature at an air inlet of the condenser of the air conditioner outdoor unit and the refrigerant evaporating pressure, thereby starting or stopping the generation of water mist; the water circulating system is used for connecting a water mist generator with an external water source, thereby supplying the water mist generator with water needed for atomizing; the water mist generator is installed opposite to an air inlet of the unit for atomizing water to generate water mist, thereby the generated water mist can be enter into the air conditioner outdoor unit along with external airflow.   
     
     
         10 . The method according to  claim 9 , wherein controlling operational states of the water circulating system based on monitoring results of the temperature at an air inlet of a condenser of the air conditioner outdoor unit and the refrigerant evaporating pressure, thereby starting and stopping the generation of water mist comprises:
 obtaining monitoring results of the temperature at an air inlet of the condenser of the air conditioner unit and the refrigerant evaporating pressure;   when the value of the monitored temperature T−T H ≧0 or the value of the monitored pressure P−P H ≧0, the water pump of the water circulating system is started; when T−T H ≦T 0  and P-P H ≦P 0 , the water pump is stopped working;   wherein, T H  is a predetermined temperature, P H  is a predetermined pressure, T 0  is a non-return temperature, and P 0  is a non-return pressure.