Safety management method for spacecraft orbit control pipeline pressure intensity

Abstract

The invention discloses a safety management method for spacecraft orbit control pipeline pressure, which manages the pressure of a spacecraft orbit control pipeline by adopting a method of combining two measures of heating the orbit control pipeline to reduce the pressure of the orbit control pipeline and autonomously releasing pressure, and controls the pressure of the orbit control pipeline to be within a safety range. The method comprises the following implementation steps: (1) designing an independent heating loop for a rail control pipeline and implementing the independent heating loop; (2) formulating an automatic valve opening and pressure relief strategy of the rail control pipeline; (3) opening an orbit control management valve to heat the orbit control pipeline after propellant filling of the orbit control pipeline or working shutdown of an orbit control engine; (4) after heating to a set temperature, closing a heater and an orbit control management valve; and (5) operating arail control pipeline autonomous pressure relief strategy. The method is used for safety management of the pressure of the spacecraft orbit control pipeline, it can be guaranteed that the pressure ofthe orbit control pipeline does not exceed a safety threshold value, product safety is guaranteed, the opening and closing action frequency of the orbit control management valve is reduced, and product reliability is improved.

Description

technical field [0001] With the development of aerospace technology, a large number of spacecraft propulsion systems such as satellites, spacecraft, and deep space probes have adopted a unified supply system for attitude control and orbit control. The attitude control engine and the orbit control engine share the pressurized gas path and propellant. supply system. During the in-orbit flight of the spacecraft, in order to ensure the sealing reliability of the propulsion system, the orbit control management valve remains closed during the stable cruise flight. After the propellant is filled into the orbit control pipeline, if the orbit control management valve is closed, the pressure of the spacecraft orbit control pipeline will change with the temperature of the orbit control pipeline. [0002] The invention relates to a safety management method for the pressure of the orbit control pipeline of a spacecraft, which is suitable for a spacecraft with a unified supply of attitude ...

AI Technical Summary

Problems solved by technology

The pipeline heating method needs to set up an independent heating circuit, and it is difficult to determine the temperature control threshold

Images