Propellant filling device of electric arc heating engine supplying pipeline

Abstract

The invention discloses a propellant filling device of electric arc heating engine supplying pipeline, comprising an entry loop, a storage tank pressurization loop, a vacuum chamber, a chamber loop and a descent reflow loop. The vacuum extraction operation of the chamber loop is carried out to finish the vacuum filling process of the chamber loop; and the storage tank pressurization loop supplies high-pressure gas into a storage tank of the entry loop so that the propellant can enter the entry loop; the propellant reaches a four-way of the chamber loop via the entry loop; and then the propellant flows out of the descent reflow loop into a neutralizing tower; the chamber loop is communicated till the entry loop and the descent reflow loop are filled by propellant, and the propellant reaches an engine via the chamber loop. The invention provides proper device for normal filling of propellant in low-power hydrazine electric arc heating engine supplying pipeline, and provides necessary basis for experimental investigation and engineering application of low-power electric arc heating engine.

Description

technical field [0001] The invention belongs to the field of arc heating engines, and relates to a propellant filling device, in particular to a propellant filling device for arc heating engine supply pipelines heated by hydrazine arc heating at low power. Background technique [0002] Small power (0.1-3kW) arc heating engine (Arcjet) has the advantages of high specific impulse, small thrust, high control precision, simple structure, etc., and is widely used to undertake position maintenance, orbit control, Posture adjustment and other tasks. Arc jet heating engine (Arcjet) with hydrazine (N 2 h 4 ) as the propellant can not only obtain higher performance, but also share the propellant tank and valve with the chemical propulsion system, which can make the structure of the propulsion system simpler and lighter, so it has more advantages in engineering applications. [0003] Propellant filling of supply lines is a key technique applied during ground testing of low power hyd...

AI Technical Summary

Problems solved by technology

There are no above-mentioned difficulties in the filling of the supply pipeline. If these original liquid and gas pipeline devices are directly applied, according to N 2 h 4 The actual requirements for propellant filling of the supply pipeline in the experimental research of the low-power arc heating engine for the propellant: the front-end supply pipeline is relatively long, N 2 h 4 Corrosive and adhesive, the capillary tubes in the hydrazine arc heated engine are very thin and simply cannot meet the requirements of the supply line propellant filling in the test of the low power hydrazine arc heated engine

Images