Heat exchanger tube plate and heat exchange tube sealing structure

The utility model relates to the technical field of heat exchanger components, in particular to a heat exchanger tube plate and heat exchange tube sealing structure which comprises a tube plate body and a plurality of heat exchange tubes fixed on the tube plate body, and the tube plate body is provided with a plurality of through holes for fluid to flow through. A plurality of grooves matched with the heat exchange tubes are formed in the back face of the tube plate, the grooves correspond to the heat exchange tubes in a one-to-one mode, the heat exchange tubes are located in the corresponding grooves, the grooves correspond to the through holes in a one-to-one mode, the diameter of the through holes is smaller than that of the inner circumferential walls of the grooves, and the grooves are located on the outer sides of the corresponding through holes. The grooves are formed in the back face of the tube plate body, and the heat exchange tubes are welded in the grooves, so that the welding seams of the heat ex