Anti-swirl and anti-collapse structure and propellant storage tank provided with same

Abstract

The invention provides an anti-swirl and anti-collapse structure and a propellant storage tank with the same, and belongs to the technical field of rocket engine devices. The anti-swirl and anti-collapse structure comprises a tunnel pipe adapter, a plurality of anti-swirl plates, and a plurality of anti-collapse plates; the tunnel pipe adapter is arranged on a central hole in the rear bottom of the propellant storage tank; the anti-swirl plates are arranged above a plurality of flow outlets which are arranged around the central hole in the rear bottom; the anti-swirl plates are vertically arranged around the tunnel pipe adapter at intervals; and the anti-collapse plates are arranged around the tunnel pipe adapter, and each anti-collapse plate connects two adjacent anti-swirl plates. According to the anti-swirl and anti-collapse structure, the tunnel pipe adapter is arranged on the central hole in the rear bottom of the storage tank, and then the anti-swirl plates and the anti-collapseplates which are of a multi-piece structure or a multi-petal structure are arranged around the tunnel pipe adapter, so that swirl prevention and collapse prevention of a plurality of the flow outletsformed around the central hole are achieved, and the anti-swirl and anti-collapse use requirements of a novel storage tank structure are met.

Description

technical field [0001] The invention relates to the technical field of rocket engine devices, in particular to an anti-swirl and anti-collapse structure and a propellant storage tank having the same. Background technique [0002] During the flight of the launch vehicle storage tank, especially after the engine is started for the second time after the rocket glides, when the propellant (oxidant, combustion agent) in the storage tank flows into the engine through the outlet, due to the friction between the liquid medium and the inner wall of the tank bottom, , the deceleration of the boundary layer is formed, and the turbulence and sloshing of the liquid caused by the external interference source generated during the rocket flight process will cause the liquid surface to collapse and vortex near the propellant outlet of the rocket tank. The liquid level and vortex will lead to pressure loss and air entrainment of the propellant flowing into the engine, which will lead to cavit...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the anti-swirl and anti-collapse structure in the prior art cannot be applied to the storage tank of the new structure, thereby providing a new anti-swirl and anti-collapse structure and a propellant storage tank with it. box

Images