▎ 摘　　要

NOVELTY - The utility model claims a sea water desalting device based on graphene oxide composite film, comprising a seawater storage device, a silica gel pipe and a filter device, the seawater storage device is fixedly connected with the filter device through the silica gel pipe; and the filter device is fixedly connected with the evaporation device through the silica gel pipe, the inner part of the evaporation device is provided with a pDA-rGO-PTFE photo-thermal film, and the inner wall of the evaporation device is welded and fixedly installed with a locating ring, the locating ring is respectively with a locating groove and a through hole, and the locating groove is connected with the through hole. The sea water desalination device based on graphene oxide composite film can store the seawater by the seawater storage device, at the same time, the seawater storage device uses dark glass bottle, the seawater has the effect of preheating; and the silica gel tube and the evaporation device can pre-treat the seawater desalination, and can prolong the service life cycle of the film assembly, and improve the efficiency of the evaporation device.