Alcohol/kerosene system of vacuum plume effect experiment system

Abstract

The invention discloses an alcohol / kerosene system of a vacuum plume effect experiment system. The alcohol / kerosene system comprises a high-pressure nitrogen path, a commanding / replacing air path, a low-pressure nitrogen path, an alcohol path and a kerosene path. During a higher-pressure and larger-flow experiment, a working medium is boosted by directly utilizing an air regulation type pressure reducer, so that the pressure and flow responding speed of the working medium is higher; during a lower-pressure and small-flow experiment, the working medium is boosted by utilizing a pressure storage buffering tank matched with the air regulation type pressure reducer, so that the pressure and flow supplied by the working medium are more accurate, and small and mini flow experiments are especially suitable; therefore the pressure regulation range of the system is wide, and the suitability is strong. According to the alcohol / kerosene system of the vacuum plume effect experiment system, the high-pressure nitrogen path provides the air source for the air regulation type pressure reducer, and also provides a displacement function for the system; before the system feeds the working medium, the air in the pipeline is replaced by nitrogen, so that the safety accident caused by the reaction of the working medium and the air in the pipeline is avoided, the system is simplified, and the safety is improved.

Description

technical field [0001] The invention relates to an alcohol / kerosene system of a vacuum plume effect experimental system, belonging to the technical field of liquid pressure control. Background technique [0002] The feathery high-speed, high-temperature jets produced when the engine works in a vacuum environment are called plumes. The plume will produce aerodynamic effects, aerothermal effects, pollution effects, electromagnetic effects, etc. on the spacecraft, collectively referred to as the plume effect, and the plume effect will affect the mission of the spacecraft. Experimental studies on plume effects include space loading tests and ground simulation tests. The space loading test data is true and reliable, but the test cost is high, the cycle is long, the number of times is small, and the amount of data obtained is limited. The one-time investment of the ground simulation test system is large, and the cost of a single test is low. It can repeatedly conduct tests in di...

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Problems solved by technology

[0004] At present, there is no alcohol / kerosene system specially used for vacuum plume effect test in China. The existing engine test alcohol or kerosene system is mainly to provide alcohol or kerosene working medium for engine test in atmospheric environment, generally for a certain model Or the task is specially designed, the pressure provided by the system is high, the flow is large, it is not suitable for the low-pressure and low-flow engine used in the plume effect test. Multi-working conditions, the research objects include various attitude control or scaled engines, although the absolute value of the pressure is low, but the adjustment range is large, therefore, it is necessary to design a universal, able to meet the needs of different projects, suitable for vacuum plume Alcohol / kerosene system for effect test

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