Connecting structure for heat exchange tubes and tube plate of heat exchanger

The utility model provides a connecting structure for heat exchange tubes and a tube plate of a heat exchanger. The connecting structure comprises the tube plate, compressing sleeves, fluorine plastic heat exchange tubes and a fixing plate, wherein tube holes are formed in the tube plate; chamfers are arranged on the edges of the tube holes; the fluorine plastic heat exchange tubes penetrate through the tube holes in the tube plate; one ends of the fluorine plastic heat exchange tubes are expanded to form expanded openings matched with the chamfers on the edges of tube holes; the fixing plate is pressed on the tube plate; holes corresponding to the tube holes of the tube plate are formed in the fixing plate; the fixing plate is connected with the tube plate via fasteners; end heads matched with the expanded holes of the fluorine plastic heat exchange tubes are arranged at one ends of the hollow compressing sleeves; the compressing sleeves penetrate into the holes in the fixing plate and connected with the inn