Nano-fluid flue gas waste heat recovery device

The utility model belongs to the field of heat exchangers, and particularly relates to a nanofluid flue gas waste heat recovery device which comprises a cold shell (1), a hot shell (2), a partition plate (3), a transition pipe (4), a condensation pipe (5), an evaporation pipe (6), a gathering hopper (7) and fins (8). The partition plate (3) is of a plate type structure with holes. The condensation pipe (5) and the evaporation pipe (6) are sequentially and fixedly arranged in cavities of the upper cold shell (1) and the lower hot shell (2) respectively. The lower port of the condensation pipe (5) is communicated with the upper port of the evaporation pipe (6) through a transition pipe (4) fixedly arranged on the partition plate (3); and a nanofluid superconductive heat exchange working medium is filled in the evaporation pipe (6). According to the utility model, efficient heat exchange is carried out based on a nanofluid boiling enhanced heat transfer theory, so that the purpose of efficiently recovering flue