A propellant management device for use in a propellant tank

Abstract

A novel propellant management device used in a propellant storage box comprises a central supporting column, flow guide blades, supporting column blades, large blades, liquid storage blades, an upper pressing plate, an upper mesh, an upper supporting plate, small cylinders, a framework, a lower pressing plate, a lower mesh and a lower supporting plate, wherein the flow guide blades, the supporting column blades and the large blades are all fixedly mounted on the central supporting column in the radial direction to form an integral structure, the integral structure is fixedly mounted on the upper pressing plate through the central supporting column, the supporting column blades and the large blades are mounted in the same plane, and a mounting plane of each flow guide blade and a mounting plane of each large blade form a certain included angle; the liquid storage blades are fixedly mounted on the upper pressing plate in the radial direction; the upper pressing plate, the upper mesh, the upper supporting plate, the small cylinders, the middle framework, the lower pressing plate, the lower mesh and the lower supporting plate are sequentially fixedly mounted from top to bottom to form the integral structure, namely, a liquid accumulation assembly. The novel propellant management device has the inhibition function on shaking of liquid, performs comprehensive management on propellants and is simple in structure, high in strength and reliability and large in liquid storage capacity, the on-orbit work application range is large, the on-orbit liquid discharge speed is high, and meanwhile, repeated large-flow filling on the ground can be realized.

Description

technical field

[0001] The invention relates to a propellant management device used in a propellant tank, in particular to a novel propellant management device used in a propellant tank with the function of suppressing liquid sloshing, belonging to the field of propulsion in space vehicles. Background technique

[0002] Propellant tanks are widely used in various space vehicles such as satellites, spaceships, space stations, and launch vehicles due to their high reliability and long life in a weightless environment. The core technology of the propellant tank is its internal propellant management device (referred to as PMD). The ability to manage PMD is a key indicator of tank performance. The goal of the PMD design is for the PMD to deliver liquids reliably and without air bubbles at all times.

[0003] At present, most of the PMDs of the propellant tanks used in my country's space vehicles, especially satellites, are mesh-type, and the screen is used as a capillary elemen...

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