An aero-engine salt spray sensitivity test device

Abstract

The invention provides an aero-engine salt spray sensitivity test device, comprising an air supply unit, a temperature adjustment unit, a humidity adjustment unit, a salt spray mixing adjustment unit, a dynamic salt spray sampling unit, a salt spray protection cabin unit, a Air unit; each unit is connected to the measurement and control unit respectively. The test device simulates the typical marine environmental climate such as temperature, humidity and salt fog experienced by the whole aero-engine when it works in the marine environment, so as to realize the performance test and evaluation of the aero-engine under the influence of this comprehensive environment. In addition, the test device can precisely control and freely combine the temperature, humidity and salt content of the simulated environment, so as to realize the test of various environmental profiles of the aero-engine.

Description

technical field [0001] The invention relates to an aero-engine salt spray sensitivity test device, which belongs to the field of engine tests. Background technique [0002] When an aero-engine flies in a coastal environment, it will be severely affected by the marine climate environment and the induced environment. The main influencing factors include temperature, humidity, salt spray, rain, acidic atmosphere, etc., among which the most prominent ones are temperature, humidity, and salt. Fog environment. Harsh and changeable climate environments such as high temperature, humidity, and salt spray in ocean and coastal areas will cause serious corrosion to the flow parts on the engine, which will lead to deterioration of the aerodynamic performance of the engine and affect the structural strength and fatigue life of the engine; another On the one hand, the higher salt content will be absorbed by the liquid film on the engine surface when the engine is working, which will cause...

AI Technical Summary

Problems solved by technology

The salt spray test in the salt spray test chamber is a "static" salt spray test to investigate the effect of salt spray settlement on the corrosion of static products, which can only simulate the corrosion resistance of components and cannot meet the development needs of naval engines

[0004] Due to the lack of corresponding engine salt spray sensitivity test equipment, the comprehensive performance of the engine affected by the marine environment can only rely on numerical simulation and flight tests, and numerical simulation must rely on experimental verification to ensure its accuracy. Flight tests are subject to real climate conditions. The impact of the change is too large to conduct a repeatable test, and the cost is high and the safety factor is low

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