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Method for using bipropellants efficiently

A propellant, two-component technology, applied in the directions of jet propulsion, rocket engine, machine/engine, etc., can solve problems such as mixing ratio and parallel discharge of tanks without active control system, eliminate single point failure, improve System reliability and the effect of improving utilization efficiency

Active Publication Date: 2013-02-13
BEIJING INST OF CONTROL ENG
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AI Technical Summary

Problems solved by technology

The balanced discharge of parallel storage tanks can only be passively controlled by the pipeline flow resistance downstream of the storage tanks, and the mixing ratio of the system can only be passively controlled by configuring a one-way valve with a similar pressure drop on the decompression gas line. Ability to actively control system mix ratio and tank parallel balance discharge

Method used

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  • Method for using bipropellants efficiently
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Examples

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Embodiment Construction

[0019] Such as figure 1 As shown, a typical dual-component propulsion system with a parallel storage tank structure for a spacecraft is basically composed of a gas cylinder 1, a pressure sensor 2, a discharge valve 3, a pressure reducer 4, a one-way valve 5, a normally open electric explosion valve 6, and a self-locking valve. Valve 7, propellant storage tank 8, orbit control engine 9 and attitude control thruster 10, wherein gas cylinder 1 is used to store high-pressure gas (usually helium); propellant storage tank 8 is used to store propellant; gas cylinder 1 and the propellant tank 8 are connected by a pressure reducer 4 and a one-way valve 5, and are equipped with necessary pressure sensors 2, discharge valve 3, normally open electric explosion valve 6 and self-locking valve 7; the pressure reducer 4 It is used to decompress the high-pressure gas in the gas cylinder 1 and inject it into the propellant tank 8 to maintain the pressure stability of the propellant tank 8; the ...

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Abstract

The invention belongs to the technical field of bipropellant propulsion systems, and provides a method for using bipropellants efficiently to use propellants effectively. By adding gas bypasses among high-pressure gas cylinders and storage tanks, following functions are achieved: improving propellant surplus measuring accuracy, controlling the parallel storage tanks actively to be discharged in balance; controlling a system mixing ratio actively; and serving as a function backup of a mechanical decompression branch, eradicating system single point failures, and improving the system reliability. The method for using bipropellants efficiently can be widely applied in various trussed satellites, and can be generalized to all satellites using the bipropellant propulsion systems to improve performances of bipropellant propulsion systems and in-orbit management capacities of bipropellant propulsion systems.

Description

technical field [0001] The invention relates to a method for efficiently utilizing a dual-component propellant, which belongs to the technology of a satellite dual-component propellant system. Background technique [0002] The dual-component propulsion system of the satellite has the characteristics of high specific impulse, using MON-1 (oxidant) and MMH (combustion agent) as the working fluid, but the two propellant components need to be mixed according to a specific ratio (mass ratio ) into the engine combustion to achieve the best results. [0003] Since the on-orbit bicomponent propulsion system does not have the active control capability of the on-orbit mixture ratio, its mixture ratio index can only be guaranteed by the design and production of the propellant pipeline, engine and thruster, and the final mixture ratio deviation index requirement is usually If it is not greater than 3%, then for a 15-year-life satellite carrying 3100kg of propellant, it is necessary to ...

Claims

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Application Information

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IPC IPC(8): F02K9/08F02K9/28
Inventor 梁军强李永宋涛马云华李湘宁耿永兵李泽黄江川王晓磊林震林星荣林长杰王雪婷张广科
Owner BEIJING INST OF CONTROL ENG
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