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Full-flow test bed oxygen system

A technology of oxygen system and test system, which can be used in measurement device, engine test, machine/structural component test, etc., and can solve problems such as explosion of oxygen pipeline

Inactive Publication Date: 2010-07-21
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In addition, high-pressure pure oxygen is extremely oxidizing. If it encounters grease or iron filings moving at high speed in the pipeline, the oxygen pipeline will explode. The design of the oxygen system needs to take into account safety and applicability

Method used

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  • Full-flow test bed oxygen system
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Embodiment Construction

[0008] The present invention proposes the oxygen system design of the full flow test bench for the first time. The supply system can be divided into the main oxygen circuit and the ignition oxygen circuit, which is specifically composed of a liquid oxygen storage tank, a liquid oxygen pump, an evaporation device, a high-pressure oxygen tank, a valve, a pressure reducer and a sonic nozzle; the supply system is designed with pressure and temperature measurement The port is convenient for calculating the flow rate of the medium in the pipeline; the nitrogen purge and replacement interface is designed to purge the residual oxygen in the pipeline.

[0009] The oxygen system uses the method of evaporating liquid oxygen to provide oxygen for the full flow test bench. Fill the liquid oxygen into the liquid oxygen storage tank, pressurize the low pressure liquid oxygen to high pressure through the liquid oxygen pump, and convert the high pressure liquid oxygen into high pressure oxygen...

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Abstract

The invention discloses a design of a full-flow test bed oxygen system, which can accurately control the flow of the oxygen, and realizes the feed and cut-off of an oxygen medium. The full-flow test bed oxygen supply system consists of a liquid oxygen storage tank, a liquid oxygen pump, a gasifier, a high-pressure storage tank, a valve, a pressure reducer and a sonic nozzle. After passing through a manual ball valve, the oxygen is divided into two paths, namely a main oxygen path for supplying oxygen for test pieces and an ignition oxygen path for providing oxygen for an igniter. A nitrogen interface is designed in the oxygen supply system, and a safety valve is designed at the rear of the pressure reducer. Therefore, the oxygen test system has high reliability and safety.

Description

【Technical field】 [0001] The invention relates to an oxygen system of a liquid rocket engine test bed, in particular to the design of an oxygen supply system for a full-flow supplementary combustion cycle engine. 【Background technique】 [0002] The full-flow afterburning cycle engine using oxygen and hydrogen as propellants has the advantages of non-toxic, non-polluting and reusable, and is one of the candidate power units for new spacecraft in the 21st century. Compared with the traditional supplementary combustion cycle engine, all the propellants of the full flow supplementary combustion cycle engine enter the pre-combustion chamber for combustion, and most of the oxidant and a small amount of fuel enter the oxygen-enriched pre-combustion chamber, and form oxygen-enriched combustion after combustion. Gas; a large amount of fuel and a small amount of oxidant enter the rich-burning pre-combustion chamber for preliminary combustion to form rich-burning gas; after the gas at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/02
Inventor 蔡国飙杜正刚俞南嘉
Owner BEIHANG UNIV
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