Iodine satellite thruster working medium supply system and application method thereof

Abstract

The invention discloses an iodine satellite thruster working medium supply system. The iodine satellite thruster working medium supply system comprises a propellant storage tank, wherein the propellant storage tank is arranged at the rear end of a thruster and communicates with a main pipe. The main pipe is divided into two branch pipes through a three-way valve. The two branch pipes are connectedwith a negative pole and a positive pole of the thruster correspondingly. The propellant storage tank, the main pipe and the two branch pipes are each provided with a heating device. The two branch pipes are each provided with a proportional flow rate control valve. The invention further discloses an application method of the iodine satellite thruster working medium supply system. The applicationmethod comprises the specific steps that the propellant storage tank is heated to 90 DEG C, and the main pipe and the branch pipes are each heated to 125 DEG C; and the branch pipe flow rates are controlled through the proportional flow rate control valves correspondingly, and furthermore, the flow rates of a working medium entering the negative pole and the positive pole of the thruster are controlled. The iodine satellite thruster working medium supply system and the application method thereof have the beneficial effects that the iodine working medium supply system is provided, flow of theiodine working medium can be adjusted through heating, and the system works at the relatively-low temperature; and the system is easy and reliable to apply, and the high specific impulse and propulsive efficiency required by propelling of a cubesat can be continuously generated.

Description

technical field [0001] The invention relates to the technical field of aerospace, in particular to a working fluid supply system for an iodine satellite thruster and a method for using the same. Background technique [0002] Cubesat is a cube star, which is a small satellite with a structure shaped like a cube. Although this kind of satellite is light in weight and small in size, it can carry a certain space experiment load to carry out scientific experiments, and the price is low. It has become an international small satellite. standard. As a relatively new spacecraft platform, CubeSat is usually used as the second payload of the launch vehicle. These satellites are constructed in the form of building blocks and have the advantage of low cost as an effective means of accessing space for a wide range of users. But a major problem is having the right electric propulsion system to be able to perform orbital transfer missions. [0003] Compared with chemical propulsion, elec...

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Problems solved by technology

However, due to problems such as the storage of iodine working fluid and the corrosion of lines, the iodine working fluid supply system also has many problems to be solved. The first problem is that all supply systems must be maintained at high temperatures to prevent iodine deposition (from gas phase back to solid phase) , which would block the propellant delivery lines

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