▎ 摘　　要

NOVELTY - The utility model claims sea water desalting field, claims a porous graphene composite film and sea water desalting the sea water desalting device. the porous graphene sea water desalting composite film comprises a shell, the shell is orderly provided with a filter layer and graphene sieve body layer from top to bottom, the graphene sieve layer is pore size 1 of the porous graphene. The shell of the utility model is used for fixing the filter layer and graphene sieve body layer, a filter layer for initial processing of the seawater, a graphene sieve layer for filtering salt and finally to sea water desalination. The utility model compared with the conventional reverse osmosis technology, it does not need extra pressure seawater, the cost is low, the structure is simple, and the filtering efficiency is high.