The invention relates to a plate-fin
heat exchanger capable of being used for a
floating platform. The
heat exchanger comprises a shell, at least one
refrigerant even
distributor and at least one core, wherein the
refrigerant even distributors and the cores are arranged in the shell. At least one
refrigerant inlet is formed in the upper portions of the side walls of the shell, a
gas phase refrigerant outlet is formed in the top of the shell, and at least one
liquid phase refrigerant outlet is formed in the bottom of the shell. The number of the refrigerant inlets, the number of the
liquid phase refrigerant outlets and the number of the refrigerant even distributors are the same as the number of the cores. The cores are in one-to-one correspondence to the refrigerant inlets, the refrigerant even distributors and the
liquid phase refrigerant outlets. The refrigerant even distributors are connected with the refrigerant inlets. The cores are located below the refrigerant inlets and the refrigerant even distributors. Each core comprises an inner runner, an outer runner, inlet pipes and outlet pipes. Each inner runner is divided into multiple
layers, identical or different kinds of cooled media can flow in the different
layers of each inner runner, and the multiple
layers of each inner runner where the identical kind of cooled media flow share one corresponding inlet
pipe and outlet
pipe. The inlet pipes and the outlet pipes penetrate the shell to stretch to the outside. The outer runners communicate with the shell.