Heat exchanger

Abstract

Disclosed in the present invention is a heat exchanger, comprising: a first manifold and a second manifold disposed on the same side of the heat exchanger; and a plurality of heat exchange tubes, each heat exchange tube having: a first heat exchange part and a second heat exchange part which are substantially parallel; and a first end and a second end connected to the first heat exchange part and the second heat exchange part respectively, with the first end deviating from a center line of the first heat exchange part by curving, such that the first end and the second end are connected to, and in fluid communication with, the first manifold and the second manifold respectively. In the heat exchanger, the manifolds are arranged on the same side, so connecting pipelines are saved, and costs are lower.

What is claimed is: 
     
         1 . A heat exchanger, comprising:
 a first manifold and a second manifold disposed on the same side of the heat exchanger; and   a plurality of heat exchange tubes, each heat exchange tube having:   a first heat exchange part and a second heat exchange part which are substantially parallel; and   a first end and a second end connected to the first heat exchange part and the second heat exchange part respectively, with the first end deviating from a center line of the first heat exchange part by curving, such that the first end and the second end are connected to, and in fluid communication with, the first manifold and the second manifold respectively.   
     
     
         2 . The heat exchanger as claimed in  claim 1 , wherein:
 each heat exchange tube further has a connecting part connecting the first heat exchange part and the second heat exchange part; at least one of the connecting parts is a U-shaped tube, or at least one heat exchange tube is an integral whole and the connecting part of the at least one heat exchange tube is formed by bending.   
     
     
         3 . The heat exchanger as claimed in  claim 1 , wherein:
 the second end deviates from a center line of the second heat exchange part by curving, and the first end and the second end deviate in opposite directions.   
     
     
         4 . The heat exchanger as claimed in  claim 1 , wherein:
 the first heat exchange part and the second heat exchange part are arranged in a first direction, and extend in a second direction which is substantially perpendicular to the first direction, and   the first end deviates from the center line of the first heat exchange part in a third direction which is substantially perpendicular to the first direction and the second direction.   
     
     
         5 . The heat exchanger as claimed in  claim 3 , wherein:
 the first heat exchange part and the second heat exchange part are arranged in a first direction, and extend in a second direction which is substantially perpendicular to the first direction,   the first end deviates from the center line of the first heat exchange part in a third direction which is substantially perpendicular to the first direction and the second direction, and   the second end deviates from the center line of the second heat exchange part in a third direction which is substantially perpendicular to the first direction and the second direction.   
     
     
         6 . The heat exchanger as claimed in  claim 1 , wherein:
 each heat exchange tube further has a plurality of third heat exchange parts disposed between the first heat exchange part and the second heat exchange part, and the first heat exchange part, the second heat exchange part and the third heat exchange parts are substantially parallel.   
     
     
         7 . The heat exchanger as claimed in  claim 6 , wherein:
 each heat exchange tube further has a plurality of connecting parts connecting adjacent heat exchange parts amongst the first heat exchange part, the third heat exchange parts and the second heat exchange part, with at least one of the connecting parts being formed by bending, or being a U-shaped tube.   
     
     
         8 . The heat exchanger as claimed in  claim 1 , further comprising:
 a fin, disposed between the first heat exchange part and the second heat exchange part.   
     
     
         9 . The heat exchanger as claimed in  claim 6 , further comprising:
 a fin, disposed between adjacent heat exchange parts amongst the first heat exchange part, the third heat exchange parts and the second heat exchange part.   
     
     
         10 . The heat exchanger as claimed in  claim 1 , wherein:
 the first end of each heat exchange tube is inclined relative to the first heat exchange part.   
     
     
         11 . The heat exchanger as claimed in  claim 3 , wherein:
 the first end of each heat exchange tube is inclined relative to the first heat exchange part, and   the second end of each heat exchange tube is inclined relative to the second heat exchange part.   
     
     
         12 . The heat exchanger as claimed in  claim 4 , wherein:
 the first end deviates from the center line of the first heat exchange part by curving substantially in a plane defined by the second direction and the third direction.   
     
     
         13 . The heat exchanger as claimed in  claim 5 , wherein:
 the first end deviates from the center line of the first heat exchange part by curving substantially in a plane defined by the second direction and the third direction, and   the second end deviates from the center line of the second heat exchange part by curving substantially in the plane defined by the second direction and the third direction.   
     
     
         14 . The heat exchanger as claimed in  claim 4 , wherein:
 the first end and the first heat exchange part of each heat exchange tube lie substantially in a plane defined by the second direction and the third direction.   
     
     
         15 . The heat exchanger as claimed in  claim 5 , wherein:
 the first end and the first heat exchange part of each heat exchange tube lie substantially in a plane defined by the second direction and the third direction, and   the second end and the second heat exchange part of each heat exchange tube lie substantially in the plane defined by the second direction and the third direction.   
     
     
         16 . The heat exchanger as claimed in  claim 1 , wherein:
 the first heat exchange part and the second heat exchange part are arranged in a first direction, and extend in a second direction which is substantially perpendicular to the first direction, and   said same side of the heat exchanger is the same side in the second direction, in a plane defined by the first direction and the second direction.   
     
     
         17 . The heat exchanger as claimed in  claim 1 , wherein:
 the first manifold and the second manifold are manifolds with D-shaped cross sections, and substantially flat surfaces of the manifolds with the D-shaped cross sections face each other.   
     
     
         18 . The heat exchanger as claimed in  claim 1 , further comprising:
 a heat insulating element disposed between the first manifold and the second manifold.   
     
     
         19 . The heat exchanger as claimed in  claim 1 , wherein:
 each of the heat exchange tubes is an integral whole.   
     
     
         20 . The heat exchanger as claimed in  claim 17 , further comprising:
 a heat insulating element disposed between the first manifold and the second manifold.