Spacecraft propellant management method

Abstract

The invention relates to a spacecraft propellant management method. In the method, the idea that a starting basket device is arranged in a propellant storage box is proposed for the first time, the spacecraft repeated starting propellant management requirement is met through retention and refilling, the starting basket device is of a structural design comprising an outer frame and an exhaust pipe. A propellant is stored inside through the outer frame, gas in the outer frame is exhausted through the exhaust pipe, repeated filling of the propellant is achieved, and therefore the engine repeated starting requirement is met. The structural mode of the outer frame and the exhaust pipe is optimally designed. The method is applicable to repeated starting spacecraft propellant management in the space microgravity environment, it is ensured that liquid drained out of the storage box contains no gas, the problem that too many attitude-control propellant is consumed for deposition is avoided, and meanwhile the structural weight of the propellant is reduced.

Description

technical field [0001] The invention relates to a spacecraft propellant management method, in particular to a space vehicle that starts multiple times in space, and belongs to the technical field of propellant management. Background technique [0002] For launch vehicles, satellites and other spacecraft, it is necessary to complete orbit change, orbit adjustment or position maintenance, requiring multiple starts in a microgravity environment, and there are problems in the management of liquid propellants. Propellant management is a problem that must be considered when the spacecraft is in taxiing, cold separation and other weightless conditions. It mainly ensures the separation of gas and liquid in the storage tank, so that the exhaust of the storage tank can be carried out reliably and the propellant can sink to the bottom reliably, so as to prevent the storage tank from being supplied to the engine. Gas inclusions in the propellant. [0003] At present, launch vehicles an...

AI Technical Summary

Problems solved by technology

Its advantages are high reliability (passive) and good compatibility with propellant, and it is widely used in satellites. For the full tank management scheme, the weight of the storage tank management device will be very large, resulting in a substantial increase in the structural mass of the spacecraft and reducing the carrying capacity of the spacecraft

Images