Heat exchanger radiating tube layout structure

The utility model relates to a heat exchanger radiating tube layout structure which is structurally characterized in that a combustion chamber is defined by a shell and the inner side of a side tube plate, an air outlet is formed in the top of the shell, the combustion chamber is divided into a right trapezoid part and a rectangular part, and a plurality of first radiating tubes and a plurality of second radiating tubes are arranged in parallel in the length direction of the shell through tube holes in the side tube plate; the first heat dissipation pipes are evenly arranged along the two side faces and the top face of the combustion chamber and further evenly arranged in the remaining part of the right trapezoid part of the combustion chamber to form a first heat dissipation area, and the second heat dissipation pipes are evenly arranged in the upper half part of the rectangular part below the first heat dissipation pipes to form a second heat dissipation area. The diameter and the pipe spacing of the first