Reverse osmosis type high temperature difference and high pressure thermal protection device

The utility model belongs to the technical field of aviation high temperature protection and particularly relates to a reverse osmosis type high temperature difference and high pressure thermal protection device applied to the technical field of aviation high temperature protection. The technical scheme is that the reverse osmosis type high temperature difference and high pressure thermal protection device comprises a fluid accumulation cavity (1), a porous partition board (4) and a combustion chamber (6). The porous partition board (4) is arranged between the fluid accumulation cavity (1) and the combustion chamber (6), and a plurality of porous partition board injection holes (3) are formed on the porous partition board (4). The reverse osmosis type high temperature difference and high pressure thermal protection device has the advantages that the partition board of a combustion device is of a porous partition board structure formed by multi-layer metal mat-shaped silk screens in a hot-pressing sintering mo