Pressure protection device for sealed cabin of manned spacecraft under emergency pressure loss condition

Abstract

The invention relates to a pressure protection device used under the pressure loss condition of a sealed cabin of a re-entry capsule of a manned spacecraft. A flexible cabin inner bag is arranged in aconnecting area of the side wall of the re-entry capsule and an outsole; the side wall is shaped after unfolding; when the sealed cabin of the re-entry capsule loses pressure, by starting the flexible cabin inner bag installed in the re-entry capsule in advance, the flexible cabin inner bag is rapidly unfolded, fixed, inflated and sealed, so that a new sealed environment is created, and resourcessuch as a life support system, cabin pressure clothes and communication which are originally arranged on the spaceship are used for jointly guaranteeing that astronauts fly emergently on orbit for seven days until the astronauts return safely.

Description

technical field [0001] The invention relates to a pressure protection device in the case of emergency loss of pressure in a sealed cabin of a manned spacecraft, which is mainly aimed at the requirements of manned moon landing missions, and provides pressure protection for the emergency loss of pressure in the sealed cabin, and belongs to the non-destructive recovery technology of manned space vehicles field. Background technique [0002] The development of my country's manned moon landing project is of great significance in terms of economy, technology and national development strategy. my country's manned lunar exploration will aim at the low-latitude areas of the moon, and adopt the direct flight mode to the moon, which requires the spacecraft to independently complete near-month braking and return to the moon. Based on the current lunar landing flight mode of the lunar orbiting space station, during the manned lunar landing mission, if the airtight cabin of the spacecraf...

AI Technical Summary

Problems solved by technology

At present, in the event of a pressure emergency in the Shenzhou spacecraft and space station missions, the emergency oxygen supply function of the pressure suit in the cabin can only be supported, which can only support about 4 hours of emergency time, which is far from meeting the requirements of the spacecraft under the most severe conditions during the moon landing process. It takes about 7 days to transfer to the moon-earth return orbit until it returns to the ground safely

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