Space propelling system suitable for large-capacity storage tank filling

Abstract

The invention provides a space propelling system suitable for large-capacity storage tank filling. The propelling system scheme is composed of a filling gas path system and a filling liquid path system. The filling gas path system is composed of an oxidizing agent filling gas sub-system and a fuel filling gas sub-system, the upstream of the oxidizing agent filling gas sub-system and the upstream of the fuel filling gas sub-system are in communication with each other and then are connected to a pressurizing gas path, and the downstream of the oxidizing agent filling gas sub-system and the downstream of the fuel filling gas sub-system are mutually independent and are correspondingly connected to the filling liquid path system; and the filling liquid path system is composed of an oxidizing agent storage tank pipeline sub-system and a fuel storage tank pipeline sub-system, the oxidizing storage tank pipeline sub-system and the fuel storage tank pipeline sub-system are mutually independentand physically isolated, and are correspondingly connected to the filling gas path system. According to the space propelling system, the safety of the space propelling system can be improved, the reverse flow of the oxidizing agent and the fuel can be effectively prevented so that explosion due to chemical reaction can be avoided; and the filling efficiency of a propellant is improved, the fillingtime of the propellant is shortened, and it is ensured that the propellant fill a conventional surface tension storage tank in place.

Description

technical field [0001] The invention relates to the field of aerospace, in particular to a space propulsion system suitable for filling large-capacity storage tanks. Background technique [0002] At present, in the field of aerospace, propellant tanks, ie, oxidant tanks and fuel tanks, are important components of space propulsion systems, among which surface tension tanks have been widely used due to their excellent reliability. But at the same time, the space propulsion system using the surface tension tank also has the following problems: [0003] First, due to the residual gas in the filling pipeline, the propellant gas is trapped during the filling process, resulting in the hidden danger of insufficient filling, which makes the filling process inefficient and time-consuming; [0004] Second, since the air cavity and the liquid cavity of the surface tension tank are the same, the internal oxidant or fuel vapor may be exposed to the risk of explosion in the upstream. In a...

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Problems solved by technology

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to propose a space propulsion system suitable for filling large-capacity storage tanks, which has solved the problems of

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