Liquid oxygen temperature zone cold helium pressurization system

A supercharging system and liquid oxygen technology, applied in jet propulsion devices, rocket engine devices, machines/engines, etc., can solve the problems of wasting pressurized media, relying on engines, and difficult to simulate accurately, so as to improve accuracy and enthalpy value, and the effect of improving system adaptability

Active Publication Date: 2020-01-10
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of scheme relies too much on the engine, and it needs to carry out relevant test verification jointly with the engine to determine whether the final system design scheme is correct, and it is difficult to simulate accurately the system test without the engine
In addition, there is a certain pressure loss when the pressurized gas enters the engine heat exchanger, and the final remaining gas volume is large, wasting part of the pressurized medium

Method used

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  • Liquid oxygen temperature zone cold helium pressurization system

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Embodiment 1

[0023] A cold helium pressurization system in a liquid oxygen temperature zone, including a liquid oxygen storage tank 1, an inflation valve 2, a pressurized gas cylinder 3, a pressurized filter 4, a pressurized solenoid valve 5, an orifice plate 6, and a heat exchange tube outside the box 7. In-tank heat exchange tube 8, energy dissipator 9, fuel tank 10, pressure sensor 11, pressure boost controller 12, safety valve 14, first bracket.

[0024] The external air source fills the pressurized gas cylinder 3 with pressurized gas through the inflation valve 2. The pressurized gas adopts but is not limited to helium. The temperature of the helium in the pressurized gas cylinder 3 does not exceed 92K, and the pressure is not low. at 21MPa; the pressurized gas cylinder 3 is fixed and soaked in the liquid oxygen in the liquid oxygen storage tank 1 through the first bracket, and the pressurized gas cylinder 3 is located in the liquid oxygen storage tank 1 and close to the liquid oxygen ...

Embodiment 2

[0028] The invention relates to a cold helium pressurization system in a liquid oxygen temperature zone. The liquid oxygen storage tank 1 is used to store liquid oxygen. The pressurized gas cylinder 3 is soaked in the liquid oxygen in the liquid oxygen storage tank 1 and installed in the liquid oxygen through a bracket. On the inner wall of the storage tank 1, the external air source fills the pressurized gas cylinder 3 with helium through the filter 13 and the inflation valve 2, the temperature of the helium is cooled to the temperature equivalent to that of liquid oxygen, and the helium is stored at high pressure and low temperature. Increase storage density. The pressurized gas enters the downstream system through the pressurized filter 4, and after the flow rate is controlled and adjusted by the pressurized solenoid valve 5 and the orifice plate 6, it enters the heat exchange tube 7 outside the downstream box, and the pressurized medium in the pipeline is heated by the exte...

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Abstract

The invention relates to a liquid oxygen temperature zone cold helium pressurization system. In the system, a pressurized gas cylinder 3 is immersed in a liquid oxygen storage tank 1, and can fully exchange heat with liquid oxygen. The b pressurized gas cylinder 3 is arranged, in the liquid oxygen storage tank 1, near the upper part of the storage tank, after a few seconds of flight, the pressurized gas cylinder 3 is exposed from the liquid oxygen, at the end of the flight, the residual gas in the pressurized gas cylinder 3 is smaller and the utilization rate of medium is improved. After the pressurized gas flows out of the cylinder, the enthalpy value of the pressurized gas is increased by making full use of the heat exchange of pipelines, aerodynamic heating and the heat exchange betweenthe gas and fuel in the storage tank. The parallel redundant design of a pressurization solenoid valve can improve the work reliability and fault tolerance ability of the system. The pressurization system avoids the coupling with an engine, omits a heat exchanger of the engine, and saves the development cost, and at the same time, the pressurization system can be self-verified and improves the accuracy of the pressurization design.

Description

technical field [0001] The invention relates to a cold helium pressurization system in a liquid oxygen temperature zone, in particular to a pressurization system for a cryogenic liquid launch vehicle. Background technique [0002] The storage tank gas storage pressurization system of the liquid rocket refers to the way in which the pressurized medium pre-stored in the gas storage device on the rocket enters the storage tank at a certain flow rate for pressurization. According to the different ways of gas storage in gas cylinders, gas storage pressurization in gas cylinders can be divided into three supercharging methods: normal temperature and high pressure gas storage, low temperature and high pressure gas storage, and low temperature and low pressure liquid storage. At present, the commonly used gas storage pressurization systems at home and abroad mainly include normal temperature and high pressure gas pressurization and low temperature and high pressure gas pressurizatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/50F02K9/60
CPCF02K9/50F02K9/60F02K9/605
Inventor 马方超张立强吴姮刘文川赵涛吴俊峰贺启林孙善秀丁蕾张智容易王道连丁建春周浩洋张聪李林吴云峰
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG
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