Condensing heat exchanger for gas-liquid heat exchange

• Main Authors: ZHANG LIANG, CAO SHIYING, XIE HONG, GUO FEI, HE YIZHUO, ZHOU KAI, HAN QINGSONG, ZOU CHUN
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2014
• Subjects: BLASTING; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The invention discloses a condensing heat exchanger for gas-liquid heat exchange. The condensing heat exchanger comprises a shell, and a combustion chamber and a fume flow channel arranged in the shell in sequence from top to bottom, wherein a water flow channel is formed in the inner wall of the shell; gas inlets and fume outlets are formed in the upper end and the lower end of the shell in sequence respectively; one side face of the shell is a plane; the part, corresponding to the combustion chamber, of the other side face narrows down in the fume flow direction; rib columns of a circular truncated cone structure respectively are fixed in a staggered manner on the inner walls of the corresponding side faces of the fume flow channel in the fume flow direction; the rib columns are arranged in a manner of being perpendicular to the fume flow direction, and the length of each rib column is basically equal to the distance between the corresponding side faces of the fume flow channel. According to the condensing