Orbit and attitude control integrated power system based on non-toxic and environment-friendly propellant

Abstract

The invention provides an orbit and attitude control integrated power system based on a non-toxic and environment-friendly propellant. The purpose is to solve the technical problems that a traditionalupgraded engine is low in performance, and toxic in propellant, or the structure of the integrated form of a descending engine and an ascending engine is relatively complicated. A propellant-sharingorbit and attitude control integrated system scheme is used to make full use of the advantages of large density and convenient storage of liquid oxygen, and mature and reliable ignition of a gaseous oxygen torch, an independent working gaseous oxygen gas generator is installed between a main liquid oxygen storage tank and a high-pressure gaseous oxygen storage tank, liquid oxygen in the main liquid oxygen storage tank is converted into high-pressure and high-oxygen-enriched fuel gas with a high mixing ratio, the fuel gas is stored in the high-pressure gaseous oxygen storage tank after removingwater, high-density storage of the attitude control propellant is achieved, and high-pressure gaseous oxygen is provided for multiple ignitions of a main engine and work of an attitude control engine, so that the integrated application of orbit and attitude control is effectively achieved, and the utilization rate of the propellant is improved; and a scheme of separate and miniaturized electric booster pumps, the system performance is improved, and the system scheme is further simplifies, so that the structure is simple and reliable.

Description

technical field [0001] The invention belongs to the field of liquid rocket engine system design, and relates to an orbit attitude control integrated power system based on non-toxic and environmentally friendly propellants, which is suitable for self-pressurized or helium-pressurized liquid rocket engines with multiple starts, and can be used for lunar exploration The plan to upgrade the power system. Background technique [0002] The lunar exploration and (manned) lunar landing missions are divided into two parts: the descending stage and the ascending upgrade power system. After completing the lunar surface soft landing and lunar surface exploration missions, the main function of the ascending upgrade power system is to return from the lunar surface to the lunar orbit. , during the ascent of the lunar surface, it is required to upgrade the thrust rating of the power system, to start multiple times and to work reliably for a long time. [0003] Traditionally, the upgraded e...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the traditional technical problems of low performance of upgraded engines, toxic propellants, or relatively complicated integrated structure of descending engines and ascending engines, and proposes an integrated power system for orbit and attitude control based on non-toxic and environmentally friendly propellants , has the advantages of high overall integration, non-toxic environmental protection, high specific impulse, simple and reliable structure, etc.

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