Dual phase condenser system

Abstract

The present invention relates to a dual phase condenser system, including an air-cooled portion, a water-air-cooled portion and a fan. The air-cooled portion can be further divided into two sectors, wherein the external air, drawn by the fan, passing through the second sector of the air-cooled portion first then to the water-air-cooled portion. The ability of air absorbing water vapor can be increased significantly in the water-air-cooled portion due to the increase of vapor pressure deficit (VPD) of the air passing through the air-cooled portion of the condenser. The dual phase condenser system of this invention is a 3-stage air-cooled condenser when shortage of water occurred. By separating gaseous and liquid refrigerants, the ability of removing thermal energy of the refrigerants can be increased. This invention required no extra fans, thus the EER can be increased when compared with the traditional one stage or patented two-stage air-cooled condenser. The dual phase condenser system of this invention is a 2-stage air-cooled plus 1-stage water-air-cooled condenser when water supply is not a constraint. This design retains the advantage of the water-air-cooled condenser when water is available and avoids its inherit disadvantage when no water is available or under humid condition, thus making it more functional than the patented water-air-cooled condenser.

What is claimed is:  
     
         1 . A dual phase condenser system includes an air-cooled portion and a water-air-cooled portion and a fan.  
     
     
         2 . The dual phase condenser system according to  claim 1 , wherein the air-cooled portion is divided into a first sector and second sector according to the flow direction of the refrigerant, the piping of the refrigerant which comes from the high pressure side of the compressor being branched into many horizontal manifolds at the front section of the first sector flowing from up to down, after the refrigerant converges at the top of second sector, it runs horizontally and in top-down fashion and then converges again at the bottom of second sector, refrigerant then send to the top of the water-air-cooled portion.  
     
     
         3 . The dual phase condenser system according to  claim 1 , wherein one (or more) piping of water source is (or are) installed on the internal corner of the upper side of water-air-cooled portion, and nozzles are installed or holes are drilled on such piping.  
     
     
         4 . The dual phase condenser system according to  claim 1 , wherein the refrigerant firstly flows to the air-cooled portion, then into the water-air-cooled portion.  
     
     
         5 . The dual phase condenser system according to  claim 1 , wherein the refrigerant firstly flows to the water-air-cooled portion, then into the air-cooled portion.  
     
     
         6 . The dual phase condenser system according to  claim 1 , wherein in spite of the location of the fan, air is drawn into the air-cooled portion first then into the water-air-cooled portion.  
     
     
         7 . The dual phase condenser system according to  claim 1 , wherein the dual phase condenser system is constructed by connecting, in series, an independent air-cooled condenser and independent water-air-cooled condenser.  
     
     
         8 . The dual phase condenser system according to  claim 2 , wherein the first and the second sectors of the air-cooled portion are constructed using two independent air-cooled condensers.