The application belongs to the technical field of tube-
bank heat exchanger, and particularly relates to a
heat exchanger tube
bank with sealing degree strengthening function. The structure of the
heat exchanger tube
bank comprises a tank plate, two internal partitions, mounting holes, and heat exchange tubes, further comprises a blocking
rubber ring unit arranged on the mounting hole and used for abutting against the end face of the heat exchange tube, a
fixed frame unit arranged on the inner side face of the tank plate, and a positioning
rubber ring unit arranged on the
fixed frame unit and used for abutting against the side face away from the internal partition. The beneficial effects of the application at least include that the heat exchanger tube bank has
rubber ring structures with relatively high sealing degree and relatively low dismounting difficulty between the tank plate and the internal partition, and between the internal partition and the heat exchange tube, so that the sealing degree between the shell side and the tube side is significantly improved, the mutual penetration between the shell side material and the tube side material is prevented, and the safety of the heat exchange operation is improved.