High-evacuation-rate high-pressure starting box

Abstract

The invention provides a high-evacuation-rate high-pressure starting box which solves the problem that when a high-pressure gas squeezes a starting box to discharge liquid, the pressure on the surfaceof a capsule of the existing starting box is not uniform, the overturning performance of the capsule is affected, and the emptying rate of the liquid is adversely affected. The high-evacuation-rate high-pressure starting box comprises a first hemispherical shell, a second hemispherical shell, a capsule, a capsule pressing ring and a first-level flow equalizing plate, wherein the first hemispherical shell and the second hemispherical shell are buckled to form a ball cavity; the capsule is positioned in the ball cavity and divides the ball cavity into a liquid cavity and an air cavity; the first-level flow equalizing plate is positioned in the air cavity and close to the position of a gas connecting nozzle, so that extrusion gas uniformly acts on the surface of the capsule, the turnover performance is improved, the emptying rate of the starting box is improved, and the working life of the starting box is prolonged; and one liquid connecting nozzle is arranged on the first hemisphericalshell and used for filling liquid inwards and supplying liquid outwards, so that the processing technology of the first hemispherical shell is simpler and the maintenance is convenient.

Description

technical field [0001] The invention belongs to a rocket engine device, in particular to a high-pressure starting box with a high emptying rate. Background technique [0002] The purpose of the liquid rocket engine configuration starter box is to provide the initial energy required to start the engine. The starting box is a diaphragm-type spherical high-pressure storage tank, which is divided into two parts, a liquid cavity and an air cavity, by an elastic isolation diaphragm (ie, a capsule). Before the engine is started, the starter tank fluid chamber is filled with fuel. When the engine is started, high-pressure gas (such as helium) enters the air cavity of the starting box and acts on the elastic isolation diaphragm, making it smoothly and quickly turn over and stick to the inner surface of the liquid cavity, and squeeze the fuel in the liquid cavity into the ignition conduit. , Squeeze the diaphragm of the ignition duct, and supply the fuel and the igniter packaged in ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the surface of the capsule is not uniformly pressed when the high-pressure gas squeezes the starter box to discharge the liquid in the existing starter box, which affects the turning performance of the capsule and has an adverse effect on the liquid emptying rate, and provides a high-efficiency Empty rate High pressure starter box with good liquid emptying capacity

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