Electric propulsion test platform air distributing device

Abstract

The invention discloses an electric propulsion test platform air distributing device, mainly comprising five parts respectively comprise a main control pipeline and four sub-control pipelines, wherein the main pipeline supplies air for the four sub-pipelines; and the four sub-pipelines comprise three propellant filling and blowing control pipelines and a control gas control pipeline in an electric propulsion test platform. The main control pipeline controls the air pressure fed to the sub-pipelines via a pressure regulator valve. Both a first sub-pipeline and a third sub-pipeline of the four sub-pipes with the same function are used for propellant filling and blowing control, and filling pressurization, storage tank pressurization and blowing pressurization operations can be carried out respectively via different manually-operated valve gates. A second sub-pipe is mainly in charge of control gas control in the device, comprising engine control gas and device control gas. A fourth sub-pipeline can also carry out storage tank pressurization operation to control propellant supply, and is simultaneously provided with a blowing pressure increasing valve. The invention can realize accurate control of gas pressure in pipelines by the control of the pressure regulator valve and the observation of a pressure gauge.

Description

technical field [0001] The invention belongs to the field of electric propulsion engines, and in particular relates to the control of gas in various liquid and gas pipelines in tests of electric propulsion engines such as resistance heating engines, Arcjet arc heating engines, ion engines, and MPD thrusters. Background technique [0002] Electric propulsion engines have the advantages of high specific impulse, long life, repeatable start, and high control precision, and have broad application prospects in missions such as spacecraft attitude and orbit control, deep space exploration, and interstellar navigation. The application of electric propulsion technology will effectively increase the payload of the spacecraft, reduce the launch cost, and improve the overall technical level of the spacecraft. Therefore, research on electric propulsion engines through ground tests is being carried out extensively. [0003] The supply of liquid propellant in the electric propulsion test...

AI Technical Summary

Problems solved by technology

[0003] The supply of liquid propellant in the electric propulsion test is generally supplied by gas extrusion, and the pipeline is complex, requiring many components to control the air pressure in the pipeline. If the air pressure in the pipeline is not stable, it will directly affect the stability of the propellant supply, thereby affecting the experimental process; in addition, some liquid propellants used in electric propulsion experiments, such as N 2 h 4 , has strong corrosiveness, strong volatility, and high risk of operation, so the operator should try to avoid too much contact with the test pipeline during the test to avoid danger

Images