Heat exchanger and baffle of the heat exchanger

Abstract

A heat exchanger includes: a shell extending longitudinally; a tube located inside the shell and extending in a longitudinal direction; and a baffle located inside the shell and including a tube through hole through which the tube passes, wherein the baffle includes a fan-shaped plane and sawteeth disposed on at least one side of the fan-shaped plane.

What is claimed is: 
     
         1 . A heat exchanger, comprising:
 a shell extending longitudinally;   a tube located inside the shell and extending in a longitudinal direction; and   a baffle located inside the shell and including a tube through hole through which the tube passes,   wherein the baffle includes a fan-shaped plane and sawteeth disposed on at least one side of the fan-shaped plane.   
     
     
         2 . The heat exchanger of  claim 1 , wherein
 the sawteeth are bent at a predetermined bending angle.   
     
     
         3 . The heat exchanger of  claim 2 , wherein
 the bending angle is about 20 degrees to about 70 degrees.   
     
     
         4 . The heat exchanger of  claim 2 , wherein
 the bending angles of all of the sawteeth are equal to each other.   
     
     
         5 . The heat exchanger of  claim 2 , wherein
 some of the sawteeth have different bending angles from each other.   
     
     
         6 . The heat exchanger of  claim 1 , wherein
 the baffle is of a plurality of baffles, and   baffles adjacent to each other have different vertical directions of the fan-shaped planes than each other.   
     
     
         7 . The heat exchanger of  claim 1 , wherein
 the baffle is of a plurality of baffles, and   three consecutive baffles of the plurality of baffles are positioned about 120 degrees apart from each other in a circumferential direction of the shell.   
     
     
         8 . The heat exchanger of  claim 1 , wherein
 a tube is of a plurality of tubes, and   a tube through hole is of a plurality of tube through holes.   
     
     
         9 . The heat exchanger of  claim 8 , wherein
 the baffle includes a rod through hole.   
     
     
         10 . The heat exchanger of  claim 9 , further comprising:
 a rod extending through a rod through hole,   wherein a radius of the rod through hole is smaller than a radius of the tube through hole.   
     
     
         11 . The heat exchanger of  claim 8 , wherein
 some of the sawteeth do not include at least one tube through hole of the plurality tube through holes.   
     
     
         12 . The heat exchanger of  claim 1 , wherein
 a coating layer is formed on the sawteeth.   
     
     
         13 . The heat exchanger of  claim 12 , wherein
 the coating layer includes at least one of zinc, nickel, chromium, aluminum, or silver.   
     
     
         14 . The heat exchanger of  claim 1 , wherein
 the baffle comprises carbon steel.   
     
     
         15 . The heat exchanger of  claim 1 , wherein
 the shape of the sawteeth is trapezoid or triangular.   
     
     
         16 . A baffle for a heat exchanger, comprising:
 a fan-shaped plane;   a tube through hole through which a tube passes; and   sawteeth formed on at least one side of the fan-shaped plane.   
     
     
         17 . The baffle for the heat exchanger of  claim 16 , wherein
 the sawteeth are bent at a predetermined bending angle.   
     
     
         18 . The baffle for the heat exchanger of  claim 17 , wherein
 the bending angle is about 20 to about 70 degrees.   
     
     
         19 . The baffle for the heat exchanger of  claim 17 , wherein
 the bending angles of each of the sawteeth are equal to each other.   
     
     
         20 . The baffle for the heat exchanger of  claim 17 , wherein
 some of the sawteeth have different bending angles from each other.