Device and method for non-toxic treatment of remaining propellant after spacecraft recovery and landing

Abstract

The invention discloses a device and a method for detoxifying residual propellant after recovery and landing of a spacecraft. The device includes a gas discharge pipeline, a liquid discharge pipeline and a liquid replenishing pipeline; the gas discharge pipeline includes a high-pressure gas discharge pipeline and a low-pressure gas discharge pipeline. The gas discharge pipeline uses the high-pressure gas discharge pipeline to discharge part of the high-pressure gas, and then uses the liquid discharge pipeline to discharge the remaining propellant to the liquid discharge tank to react with the neutralized liquid therein, and then discharges the remaining gas through the low-pressure gas discharge pipeline for use. The rehydration pipeline injects neutralizing liquid into the spacecraft for reaction. The present invention adopts efficient, fast and safe processing means to detoxify the remaining propellant after the spacecraft is recovered and landed, so that the time when the spacecraft is exposed to harsh environments is shortened, the operating environment requirements are low, and it is suitable for various harsh terrain and environmental conditions. , the processing process is efficient and safe.

Description

technical field [0001] The invention relates to the technical field of spacecraft recovery, and in particular to the technical field of non-toxic treatment of spacecraft propellants. Background technique [0002] Spacecraft recovery is a comprehensive application technology developed from the development of launch vehicles, satellites, spacecraft and other space technologies. The safety of recovery is a link throughout the spacecraft recovery process. Since the power system of the spacecraft carries a large amount of toxic propellant during the mission, there will still be a certain amount of toxic propellant inside the spacecraft after landing, which brings certain safety hazards to the dismantling and analysis process of the spacecraft after recovery. [0003] At present, there are two main ways to deal with the remaining propellant after spacecraft recovery: one is to set a passivation stage before the spacecraft is landed to consume the remaining high-pressure gas and pr...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the prior art is that the above-mentioned method of detoxifying the remaining propellant can solve the safety problem of the spacecraft being toxic after recovery to a certain extent, but both methods need to transfer the spacecraft from the actual landing site to After professional treatment of the plant or base, only physical methods can be used to seal and protect during the transfer process. There are certain hidden dangers in reliability and safety. For example, the seal is incomplete during the transfer process or the seal fails due to other reasons, and the remaining propellant leaks out. , will pose a threat to personnel and equipment

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