Combined plate-and-tube heat exchange evaporative condenser

Abstract

The present invention discloses a combined plate-and-tube heat exchange evaporative condenser, which comprises a fan, a water pump, a water sprayer, a reservoir and a combined plate-and-tube heat exchanger; the combined plate-and-tube heat exchanger is composed of a plurality of combined plate-and-tube heat exchange pieces connected by inlet headers and outlet headers; the combined plate-and-tube heat exchange piece comprises a heat transfer plate and a serpentine tube machined by the heat exchange tube; the heat transfer plate is provided with a groove, and the shape of the groove is matched with that of the serpentine tube; the serpentine tube is disposed in the groove, and a gap between the serpentine tube and the groove is filled with a thermally conductive adhesive layer.

What is claimed is: 
     
         1 . A combined plate-and-tube heat exchange evaporative condenser, comprising a fan, a water pump, a water sprayer and a reservoir; characterized in that the evaporative condenser further comprises a combined plate-and-tube heat exchanger; the combined plate-and-tube heat exchanger is consisted of a plurality of combined plate-and-tube heat exchange pieces connected by a plurality of inlet headers and a plurality of outlet headers; the combined plate-and-tube heat exchange piece comprises a heat transfer plate and a serpentine tube machined by a heat exchange tube; the heat transfer plate is provided with a groove, and the shape of the groove is matched with that of the serpentine tube; the serpentine tube is disposed in the groove, and a gap between the serpentine tube and the groove is filled with a thermally conductive adhesive layer. 
     
     
         2 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 1 , characterized in that the thermally conductive adhesive layer is a metal filler layer. 
     
     
         3 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 2 , characterized in that the gap between the serpentine tube and the groove has a width smaller than 10 mm. 
     
     
         4 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 3 , characterized in that a plurality of limiting grooves and/or positioning solder joints are stamped on the heat transfer plate. 
     
     
         5 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 2 , characterized in that the metal filler layer is one or more selecting form a group consisting of zinc, tin, aluminium, and copper. 
     
     
         6 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 1 , characterized in that the thermally conductive adhesive layer is a thermally conductive adhesive. 
     
     
         7 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 1 , characterized in that the combined plate-and-tube heat exchange piece is longitudinally arranged, which means cooling wind generated by the fan flows past in a long direction of the serpentine tube. 
     
     
         8 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 1 , characterized in that the heat transfer tube is bent to form a plurality of straight sections; adjacent straight sections of the heat transfer tube are parallel with each other, and a tube pitch between the adjacent straight sections is uniform, or the tube pitch between the adjacent straight sections gets smaller gradually from the top down in the fall direction of spray water. 
     
     
         9 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 1 , characterized in that the heat exchange tube is bent to form a plurality of straight sections; the length of the straight section gets longer gradually from the top down in the fall direction of spray water. 
     
     
         10 . The combined plate-and-tube heat exchange evaporative condenser according to  claim 1 , characterized in that the heat transfer plate further has a structure selected form a group consisting of a water-guiding pattern, a water-guiding hole, a flying-water prevention structure, a reinforcing rib and any combination thereof.