Electric pump conveying system for solid-liquid rocket engine

Abstract

The invention discloses an electric pump conveying system for a solid-liquid rocket engine. The electric pump conveying system comprises a high-pressure gas bottle and a storage box. The high-pressure gas bottle is connected with a storage box through a first pipeline. The storage box is connected with a thrust chamber through a second pipeline. A pressurizing one-way valve, pore plates, gas path high-speed electromagnetic valves, a storage box exhaust hand valve and a safety valve are mounted on the first pipeline. A filling-discharging hand valve, a diaphragm valve, a pump, a flow adjusting valve and a liquid path high-speed electromagnetic valve are mounted on the second pipeline, wherein the pump is connected with a motor. By controlling opening and closing of the gas path electromagnetic valves, the pressure of the storage box is adjusted to meet the task requirement; when the pressure of the storage box exceeds the break valve of the diaphragm valve, the diaphragm valve breaks; and oxidizing agents in the storage box are pressurized through the pump driven by the motor after passing through the diaphragm valve, and then the flow of the oxidizing agents is controlled through the flow adjusting valve, after the liquid path high-speed electromagnetic valve is opened, the oxidizing agents are supplied to the thrust chamber according to the flow and pressure of task requirements. The electric pump conveying system is especially suitable for a solid-liquid rocket engine on a small carrier rocket.

Description

technical field [0001] The invention relates to the field of rocket engines, in particular to an electric pump delivery system for solid-liquid rocket engines. Background technique [0002] In the past two years, commercial aerospace has developed vigorously, and a large number of private aerospace companies have emerged, such as SpaceX, SSTL, Skybox, GeoEye, etc., especially the rapid development of microsatellites. [0003] Therefore, there is a huge commercial demand for low-cost, fast-launching small launch vehicles. [0004] The solid-liquid hybrid rocket engine has a simple structure and good safety. It can be quickly maneuvered to launch, multiple starts, and thrust adjustment. It can be used to develop low-cost small launch vehicles, reduce launch costs and cycle times, and improve launch flexibility and orbital accuracy. [0005] The solid-liquid extrusion conveying system is not suitable for high chamber pressure and long-time working requirements. The structure o...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a solid-liquid rocket motor electric pump delivery system to solve the requirement that the solid-liquid extrusion delivery system in the prior art is

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