Heat exchanger having circulation guide

Abstract

A heat exchanger having a circulation guide, the heat exchanger comprising: a heat exchanger body; an inlet port, which is connected to a bottom end of the heat exchanger body; a discharge port which is connected to a top end of the heat exchanger body; a top body tube installed at a top end of an inside of the heat exchanger body; a bottom end plate installed at a bottom end of the inside of the heat exchanger body; and combustion pipes, which each have a top end connected to pass through a floor surface of the top body tube.

1 . A heat exchanger having a circulation guide, the heat exchanger comprising:
 a heat exchanger body ( 210 ) having a water chamber ( 210   a ) formed inside thereof;   an inlet port (IN), which is connected to a bottom end of the heat exchanger body ( 210 ) and through which water is supplied to the water chamber ( 201   a );   a discharge port (OUT), which is connected to a top end of the heat exchanger body ( 210 ) and through which water is discharged from the water chamber ( 210   a );   a top body tube ( 220 ) installed at a top end of an inside of the heat exchanger body ( 210 ) and having a fire chamber ( 220   a ) formed inside thereof;   a bottom end plate ( 230 ) installed at a bottom end of the inside of the heat exchanger body ( 210 ); and   a plurality of combustion pipes ( 240 ), which each have a top end connected to pass through a floor surface ( 222 ) of the top body tube ( 220 ) and a bottom end connected to pass through the bottom end plate ( 230 ) and through which a combustion gas at a high temperature introduced through the fire chamber ( 220   a ) is discharged,   wherein sidewalls ( 221 ) that constitute the top body tube ( 220 ) are spaced apart from each other inwardly from an inner circumferential surface of the heat exchanger body ( 210 ), and a spiral guide ( 223 ) that protrudes along a spiral shape is installed at inner circumferential surfaces of the sidewalls ( 221 ).   
     
     
         2 . The heat exchanger of  claim 1 , wherein ends of the spiral guide ( 223 ) in a protrusion direction thereof are in contact with the inner circumferential surface of the heat exchanger body ( 210 ). 
     
     
         3 . The heat exchanger of  claim 1 , further comprising a plate-shaped guide ( 250 ) that is assembled to be passed through by the combustion pipes ( 240 ) inside the heat exchanger body ( 210 ) and closes a part of the water chamber ( 210   a ) of the heat exchanger body ( 210 ) to force the flow of water to be changed. 
     
     
         4 . The heat exchanger of  claim 3 , wherein the plate-shaped guide ( 250 ) comprises a plurality of sub-guides ( 250 - 1 ,  250 - 2 ), and the plurality of sub-guides ( 250 - 1 ,  250 - 2 ) are installed in the heat exchanger body ( 210 ) in a height direction to be spaced apart from each other. 
     
     
         5 . The heat exchanger of  claim 4 , wherein the plurality of sub-guides ( 250 - 1 ,  250 - 2 ) comprise:
 a central side flow guide ( 250 - 1 ) installed to extend from the center of the heat exchanger body ( 210 ) outwardly by a predetermined length; and   a peripheral side flow guide ( 250 - 2 ) installed to extend from the inner circumferential surface of the heat exchanger body ( 210 ) inwardly by a predetermined length.   
     
     
         6 . The heat exchanger of  claim 5 , wherein the peripheral side flow guide ( 250 - 2 ) is installed above the central side flow guide ( 250 - 1 ). 
     
     
         7 . The heat exchanger of  claim 2 , further comprising a plate-shaped guide ( 250 ) that is assembled to be passed through by the combustion pipes ( 240 ) inside the heat exchanger body ( 210 ) and closes a part of the water chamber ( 210   a ) of the heat exchanger body ( 210 ) to force the flow of water to be changed.