An integrated power system for orbit and attitude control based on non-toxic and environmentally friendly propellants

Abstract

In order to solve the traditional technical problems of low performance of the upgraded engine, toxic propellant, or relatively complicated integrated structure of the descending engine and the ascending engine, the present invention proposes an orbit attitude control integrated power system based on a non-toxic and environmentally friendly propellant. The propellant-shared orbital attitude control integrated system scheme makes full use of the advantages of high liquid oxygen density, convenient storage, mature and reliable gas-oxygen torch ignition, and sets up an independently working gas-oxygen tank between the main liquid oxygen tank and the high-pressure gas-oxygen tank. The gas generator converts the liquid oxygen in the main liquid oxygen storage tank into high-pressure high-oxygen-enriched gas with a high mixing ratio, and stores it in the high-pressure gas-oxygen storage tank after removing water to realize high-density storage of attitude-controlled propellants. Multiple ignitions and attitude control engine work provide high-pressure gas and oxygen, which effectively realizes the integrated application of orbit attitude control and improves the utilization rate of propellant; adopts the scheme of separate and miniaturized electric booster pumps, which not only improves system performance, but also simplifies The system scheme makes the structure 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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