Plume protection device for spacecraft

The invention discloses a plume protection device for a spacecraft, the plume protection device comprises a protection wall body and a thermal control multilayer, the protection wall body is arranged between equipment of the spacecraft and a plume nozzle of an engine, and the protection wall body is used for supporting the thermal control multilayer; the thermal control multilayer is laid on the surface of the protective wall body and used for isolating high-temperature plume particles from spacecraft equipment. The protective wall body of the frame structure is made of the aluminum alloy material, the multiple open holes are formed in the protective wall body to reduce the mass of the device, and the detachable protective layer is arranged on the protective wall body to reduce the weight of the device operated by astronauts on orbit. According to the plume protection device for the spacecraft, the rigidity and strength requirements of the device are met, meanwhile, the weight of the device is greatly reduced