Double cold storage circulating icing and anti-icing testing apparatus

Abstract

The invention provides a double cold storage circulating icing and anti-icing testing apparatus which comprises a testing airflow cooling system, a testing chamber, a pressure balance pipe, a first airflow conveying pipe and a second airflow conveying pipe. The testing airflow cooling system comprises a first cold storage and a second cold storage, an outlet of the first cold storage is communicated with an inlet of the testing chamber through the first airflow conveying pipe, an outlet of the testing chamber is communicated with an inlet of the second cold storage through the second airflow conveying pipe, and an output of the second cold storage is communicated with an inlet of the first cold storage through the pressure balance pipe, so that a double cold storage closed circulating testing channel is formed. According to the double cold storage circulating icing and anti-icing testing apparatus, one cold storage is adopted to serve as the inlet, the stable section volume of the airflow inlet is increased, and the airflow quality of the airflow from the testing chamber is improved; the other cold storage is arranged on the outlet of the testing chamber, a collection device for supercooled water droplets of the airflow through the testing chamber can be effectively arranged in the space of the cold storage, and the continuous running time of the testing system is increased.

Description

technical field [0001] The invention relates to the aviation technical field of research on icing and anti-icing of aircraft and engine parts, in particular to an icing and anti-icing test device using a double cold storage circulation system. Background technique [0002] Icing of aircraft and engines is a serious problem that endangers flight safety, and flight accidents related to icing occur every year. When an aircraft flies through icy clouds, icing may occur on the windward side, such as windshield glass, wings, empennage, various flight sensors, engine intake system components, etc. The icing of the aircraft will cause the lift to drop, the drag to rise, and the handling performance to decline; the icing of the engine air intake system will change the aerodynamic characteristics of the air intake system, increase the flow resistance, make the air intake air field distribution uneven, and cause air flow distortion in light cases , thus affecting the working stability...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the current problems of high construction cost, long period and high maintenance cost of icing and anti-icing test equipment for aircraft and engine components, the purpose of this invention is to provide an economical and practical icing and anti-icing test device using a double cold storage circulation system

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