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Two-layer anti-sputtering molecular sink structure for ground electric propulsion test and cooling method thereof

A technology of anti-sputtering and electric propulsion, which is applied in the direction of testing of machines/structural components, measuring devices, instruments, etc., and can solve problems such as poor anti-sputtering ability

Active Publication Date: 2018-05-18
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a double-layer anti-sputtering molecular sink structure for ground electric propulsion tests, to solve the technical problem of poor anti-sputtering ability of the anti-sputtering structure for ground electric propulsion tests existing in the prior art

Method used

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  • Two-layer anti-sputtering molecular sink structure for ground electric propulsion test and cooling method thereof
  • Two-layer anti-sputtering molecular sink structure for ground electric propulsion test and cooling method thereof
  • Two-layer anti-sputtering molecular sink structure for ground electric propulsion test and cooling method thereof

Examples

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Effect test

Embodiment 1

[0041] Such as figure 1 , figure 2 and Figure 6As shown, a double-layer anti-sputtering molecular sink for the sputtering effect in the electric propulsion cabin applied in the vacuum chamber of the present invention includes a double-layer anti-sputtering molecular sink cylinder skeleton 1 and a cylinder cooling tube plate 2 , support pulley 3, anti-sputtering molecular sink 20 at the secondary end and anti-sputtering molecular sink 21 at the end, the anti-sputtering molecular sink includes a cylinder molecular sink matched with the bulkhead, the anti-sputtering molecular sink at the end and the secondary end The anti-sputtering molecule sinker, the end anti-sputtering molecule sinker 21 is fixed on the double-layer anti-sputtering molecular sinking shell frame 1 by bolts, the secondary end anti-sputtering molecular sinking 20 is connected to the double-layer anti-sputtering molecular sinking shell frame An integrated design is adopted, and the distance between the anti-s...

Embodiment 2

[0051] Apply the above-mentioned method of double-layer anti-sputtering molecular subsidence refrigeration, such as figure 2 As shown, specifically:

[0052] (1) Open the cylinder pipeline coolant control valve 801, the end molecular sink infusion tube coolant control valve 802 and the skeleton pipeline coolant control valve 803, start the cooling cycle system, The coolant is introduced, and at the same time, the pipeline temperature and cooling speed are adjusted by opening the cylinder pipeline coolant control valve 801, the end molecular sink infusion pipeline coolant control valve 802 and the skeleton pipeline coolant control valve 803. When the temperature of the cooling tube plate 2, the anti-sputtering molecular sink 21 at the end and the anti-sputtering molecular sink 20 at the secondary end reach the minimum, close the cooling liquid control valve 801 of the cylinder pipeline and the cooling liquid control valve 801 of the end molecular sinking infusion tube. Valve ...

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Abstract

The invention provides a two-layer anti-sputtering molecular sink structure for a ground electric propulsion test and a cooling method thereof, and relates to the technical field of plasma space environment simulation test equipment. The two-layer anti-sputtering molecular sink structure for the ground electric propulsion test comprises a secondary end anti-sputtering molecular sink and an end anti-sputtering molecular sink, the secondary end anti-sputtering molecular sink and the end anti-sputtering molecular sink are arranged in the axial direction along a cylinder body, the end anti-sputtering molecular sink is located at the bottom of the cylinder body, the secondary end anti-sputtering molecular sink is located in the cylinder body, and the cylinder body is used for installing the secondary end anti-sputtering molecular sink and the end anti-sputtering molecular sink. The structure is capable of solving the existing technical problem of poor anti-sputtering capacity of an anti-sputtering structure for the ground electric propulsion test in the prior art.

Description

technical field [0001] The invention relates to the technical field of plasma space environment simulation test equipment, in particular to a double-layer anti-sputtering molecular sink structure for ground electric propulsion tests and a ground electric propulsion testing machine with the above-mentioned double-layer anti-sputtering molecular sink. Background technique [0002] Compared with traditional chemical thrusters, electric thrusters have the characteristics of high specific impulse, small thrust, and long life. Therefore, electric propulsion can increase the payload of spacecraft, improve the accuracy of attitude and orbit control, and greatly increase the life of spacecraft. Wide range of applications. China's electric thruster has gradually matured after decades of research, but there is no precedent for the application of electric thrusters on Chinese satellites, and the plume sputtering effect of electric thrusters will affect the service life of the spacecraft...

Claims

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Application Information

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IPC IPC(8): G01M99/00F28D21/00
CPCF28D21/00F28D2021/0021G01M99/00
Inventor 翁惠焱苏杨贺碧蛟凌桂龙蔡国飙
Owner BEIHANG UNIV