Novel Liquid Cooler

Abstract

A liquid cooler comprises a hot liquid container, a cold liquid container, a cooling sleeve, a heat exchanger and a plurality of connecting pipes. The hot liquid container communicates with the cooling sleeve through the connecting pipes. The cooling sleeve has a double-layer structure, the inner pipe of which is used for transporting a hot liquid and the outer pipe thereof is used for transporting cooling water. The cooling water cools the hot liquid in the inner pipe once forming a cold liquid, and the cold liquid passes through the connecting pipes to reach the cold liquid container. The heat exchanger cools the cold liquid for a second time forming an ice liquid. After the two-stage cooling, the hot liquid is made into an ice liquid beverage of required temperature avoiding the bitterness and rancidity of high-temperature liquid beverages.

What is claimed is: 
     
         1 . A liquid cooler comprising: a hot liquid container, a cold liquid container, a cooling sleeve, a heat exchanger and a plurality of connecting pipes;
 wherein a hot liquid is disposed in the hot liquid container which is connected with the cooling sleeve through one of the connecting pipes; the cooling sleeve has a double-layer structure, with the inner pipe thereof used for transporting the hot liquid and the outer pipe thereof used for transporting cooling water; the cooling water cools the hot liquid in the inner pipe once to form a cold liquid to be sent to the cold liquid container via another one of the connecting pipes; the cold liquid container connects to the heat exchanger via yet another one of the connecting pipes; and the heat exchanger circulates to cool the cold liquid for the second time to form an ice liquid.   
     
     
         2 . The liquid cooler of  claim 1  further comprising a first water pump and a second water pump, wherein the first water pump drives the cooling water into the outer pipe to cool the hot liquid, and the second water pump drives the cold liquid from the cold liquid container to the heat exchanger. 
     
     
         3 . The liquid cooler of  claim 1 , wherein the heat exchanger includes an air compressor, a heat exchange pipe and a refrigerant pipe; after the cold liquid enters the heat exchange pipe, the refrigerant absorbs heat of the cold liquid to become a gaseous state; and the air compressor compresses the gaseous refrigerant to condense back into the liquid state and back to the refrigerant pipe. 
     
     
         4 . The liquid cooler of  claim 1 , wherein a temperature probe for detecting the temperature of liquid is installed inside the cold liquid container. 
     
     
         5 . The liquid cooler of  claim 1 , wherein an electromagnetic valve is installed in the connecting pipe at the water outlet of the heat exchanger for controlling the flow of the cold liquid. 
     
     
         6 . The liquid cooler of  claim 1 , wherein the cooling sleeve is arranged in a disk shape. 
     
     
         7 . The liquid cooler of  claim 1  further comprising a frame, a protection plate, an upper cover, and a cleaning faucet; wherein a placement slot for fixing the hot liquid container and the cold liquid container is disposed above the frame; the protection plate is installed on the outer side of the frame to protect the internal cooling sleeve, the heat exchanger, and the connecting pipes; the upper cover is installed above the frame; and the cleaning faucet is installed above the upper cover to output filtered clean water.