Xenon-pump-integrated plume protection device for electric propulsion tests

Abstract

The invention discloses a xenon-pump-integrated plume protection device for electric propulsion tests. The xenon-pump-integrated plume protection device mainly comprises a protective titanium or graphite baffle structure which is installed a testing device through a fixing device and a mounting flange. The baffle structure includes a liquid inlet main pipe, a liquid outlet main pipe, a confluencemain pipe, a cooling branch pipe, and a plurality of baffles. The baffles are a plurality of coaxial conical rings having certain gaps and are welded on the annular cooling branch pipe. The cross sections of the conical rings are approximately perpendicular to the normal direction of the plume jet section of a propeller in order that the direct impact of working medium gas particles on a xenon pump cold plate is blocked and a plume protection effect is achieved. The xenon-pump-integrated plume protection device is simple in structure, easy to install and maintain, and in an integrated type, has no loose joint therein, and can withstand the bombardment of internal plume particles to ensure the reliability of the protection function.

Description

technical field [0001] The invention belongs to the technical field of ground environment verification test of space electric propulsion system, and in particular relates to a xenon pump integrated plume protection device for electric propulsion test. Background technique [0002] With the development of my country's aerospace technology, various high-performance platforms have increasingly urgent requirements for the application of electric propulsion technology. The demand for high specific impulse multi-mode electric propulsion system, the demand for high-power and high-thrust electric propulsion system for deep space exploration, etc. [0003] At present, the development of electric propulsion technology in my country is in full swing, and the research on electric propulsion systems has entered a stage of steady development. At present, the main performance indicators have approached or reached the international advanced level, and the basic conditions for engineering app...

AI Technical Summary

Problems solved by technology

On the one hand, the particle sputtering effect will affect the performance of the test process equipment. For example, if the pump group xenon pump used to extract the propellant xenon gas is directly exposed to particle bombardment, the temperature of the air extraction cold plate will rise, which will affect the air extraction performance. and test status

On the other hand, the particles bombard the vacuum container, heat sink and other process equipment, and the substances produced by the sputtering effect will also cause pollution to the propeller itself, which will interfere with the test results and affect the test results.

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