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.

What is claimed is: 
     
         1 . A heat exchanger including a circulation guide, the heat exchanger comprising:
 a heat exchanger body including therein a water chamber;   a top body tube including therein a fire chamber, installed at a top end of an inside of the heat exchanger body, and including a sidewall of which at least a portion is spaced apart from an inner circumferential surface of the heat exchanger body;   an inlet port formed at a bottom end of the heat exchanger body and allowing water to be supplied therethrough to the water chamber;   an outlet port connected to a top end of the heat exchanger body and allowing the water that is heated while passing through the water chamber to be discharged therethrough;   a spiral guide formed at the sidewall of the top body tube in a spiral direction and guiding the water having passed through the water chamber to be discharged to the outlet port without stagnation; and   a plate-shaped guide including a peripheral side flow guide penetrated and supported by at least some of a plurality of combustion pipes, blocking a portion of the water chamber of the heat exchanger body to change flow of the water forcibly, and spaced apart from a floor surface of the top body tube by a distance in a range of 15 mm to 20 mm.   
     
     
         2 . The heat exchanger including the circulation guide of  claim 1 , wherein the plate-shaped guide further includes a central side flow guide space apart from the peripheral side flow guide in a longitudinal direction of the plurality of combustion pipes and disposed relatively adjacent to the inlet port than the peripheral side flow guide is thereto. 
     
     
         3 . The heat exchanger including the circulation guide of  claim 2 , wherein the central side flow guide is installed to extend from a center of the heat exchanger body outwardly by a predetermined length. 
     
     
         4 . The heat exchanger including the circulation guide of  claim 3 , wherein the peripheral side flow guide is installed to extend from an inner circumferential surface of the heat exchanger body inwardly by a predetermined length. 
     
     
         5 . The heat exchanger including the circulation guide of  claim 1 , wherein the floor surface of the top body tube is adjacent to the sidewall of the top body tube. 
     
     
         6 . The heat exchanger including the circulation guide of  claim 1 , wherein the peripheral side flow guide and the floor surface of the top body tube are disposed in parallel to each other. 
     
     
         7 . The heat exchanger including the circulation guide of  claim 1 , wherein the plurality of combustion pipes are connected so that a top end of each of the plurality of combustion pipes passes through the floor surface of the top body tube and guide flow of a high-temperature combustion gas introduced through the fire chamber.