Aero-engine salt mist sensitivity test device

Abstract

The invention provides an aero-engine salt mist sensitivity test device. The test device comprises an air supply unit, a temperature regulation unit, a humidity regulation unit, a salt mist mixed regulation unit, a dynamic salt mist sampling unit, a salt mist protective cabin unit and an exhaust unit, wherein all the units are sequentially connected and are connected to a measurement and control unit respectively. The test device simulates typical marine environmental climates, such as temperature, humidity and salt mist, which a whole aero-engine undergoes during operation in a marine environment, and therefore performance testing and assessment of the aero-engine under the influence of the integrated environment are realized. Besides, the test device also can perform precise control andfree combination on the temperature, humidity and salt content of the simulated environment, and therefore testing on multiple environmental profiles of the aero-engine is realized.

Description

Technical field [0001] The invention relates to an aeroengine salt spray sensitivity test device, which belongs to the field of engine test. Background technique [0002] When flying in a coastal environment, aero engines 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. The most prominent ones are temperature, humidity, and salt. Foggy environment. The harsh and changeable climatic environment such as high temperature, damp heat and salt spray in the ocean and coastal areas will cause severe corrosion to the flow components of the engine, which will cause the deterioration of the aerodynamic performance of the engine and affect the structural strength and fatigue life of the engine; On the other hand, higher salt content will be absorbed by the liquid film on the engine surface when the engine is working, which will cause fouling on the en...

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

Images