A self-pressurization supply system based on regenerative cooling

A supply system, regenerative cooling technology, applied in the field of aerospace propulsion systems, can solve the problem of consuming missiles/satellite power resources, etc., to reduce quality and complexity, ensure safety, and reduce costs

CN105971768BActive Publication Date: 2017-09-15NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-09-15

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Abstract

The invention belongs to the technical field of spacecraft systems and is mainly applied to liquid propulsion systems or solid-liquid mixing propulsion systems adopting high-saturated vapor pressure propulsive agents. In order to solve the problems that the temperature of propulsive agents and the pressure in a storage box are seriously reduced in the working process of a self-pressurization supply system, a self-pressurization scheme based on regenerative cooling is provided. The self-pressurization supply system is composed of a safety valve, a storage box, a filling pipeline, a filling valve, a one-way valve, a cooling channel, a liquid accumulating cavity, a main supply pipeline, a coolant pipeline, a burning agent pipeline, a main valve, a pressurization pipeline and the like. Propulsive agents cool the wall of a combustor and acquire heat at the same time. The propulsive agents subjected to heat exchange and vaporization return to the storage box to pressurize the storage box. According to the self-pressurization supply system based on regenerative cooling, the pressure intensity of the storage box can be basically maintained to be stable before the liquid propulsive agents in the storage box are completely discharged, and accordingly the effect that the thrust is basically stable is ensured.
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Description

technical field

[0001] The invention belongs to the technical field of aerospace propulsion systems, in particular to a self-pressurized supply system based on regenerative cooling. Background technique

[0002] The currently used chemical rocket propulsion systems are: liquid propulsion system, solid propulsion system, gas propulsion system and solid-liquid hybrid propulsion system. Among the above-mentioned types of propulsion systems, liquid propulsion systems, solid-liquid propulsion systems and gas propulsion systems all require propellant pressurized delivery devices, and such pressurized devices are further divided into two categories: pump pressure type and extrusion type. The main advantage of the pump pressure system is that the propellant storage tank does not have to withstand high pressure, and a lighter weight storage tank can be used. However, due to the increased complexity and cost of the system by using a turbo pump, it is usually only used for large-scale ...

Examples

Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] The present invention "a self-pressurized supply system based on regenerative cooling" includes: a safety valve 1, a storage tank 2, a filling pipeline 3, a filling valve 4, a one-way valve 5, a cooling channel 6, a liquid collection chamber 7, Main supply line 8 , coolant line 8 a , combustion agent line 8 b , main valve 9 , booster line 10 , combustion chamber 11 , propellant 12 .

[0027] In this example, nitrous oxide N 2 O as a liquid propellant.

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