Low-temperature propelling system based on steam cooling screen

Abstract

The invention discloses a low-temperature propelling system based on a steam cooling screen. The low-temperature propelling system comprises a first storage box and a second storage box. A first isolating valve is arranged at an outlet of the first storage box, and a second isolating valve is arranged at an outlet of the second storage box. The first storage box is provided with a propellant managing device, a storage box shell, the steam cooling screen and a multi-layer thermal insulation material. The first storage box sequentially comprises the storage box shell, the steam cooling screen and the multi-layer thermal insulation material from interior to exterior. The propellant managing device is arranged in the first storage box. The storage box shell and the steam cooling screen are connected through a low-temperature thermal insulation support. The problem that the on-orbit working time of a low-temperature propelling system is short is solved. Propellant steam in the steam coolingscreen is utilized as a fuel cell working medium, an internal combustion engine is utilized to drive an electric generator, and electricity utilization demands of working of the propelling system arerelieved. In addition, evaporation and discharging of propellants in the storage boxes are reduced through the low-temperature propelling system, thermal stratification of the propellants in the storage boxes is reduced, and the on-orbit working time of the propelling system is prolonged.

Description

technical field [0001] This application relates to the field of liquid rocket propulsion systems, in particular, to a low-temperature propulsion system based on steam cooling panels, which can be applied to upper stages, satellites, spaceships, interstellar probes and space stations. Background technique [0002] Due to its high specific impulse, non-toxic, non-polluting, and relatively low price, low-temperature propellants have become the preferred propellants for spacecraft entering space and orbit, lunar and deep space exploration. [0003] The inventors found that although the low-temperature propellant has high performance, it is difficult to store due to its low boiling point and easy evaporation. However, the existing propulsion system cannot reduce the evaporation and emission of the propellant in the tank, and at the same time reduce the thermal stratification of the propellant in the tank, and the working time of the entire low-temperature propulsion system on orb...

AI Technical Summary

Problems solved by technology

[0006] The main purpose of this application is to provide a low-temperature propulsion system based on a steam cooling screen to solve the problem that the low-temperature propulsion system is prone to propellant waste

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