Test cabin for low temperature test of main combustion chamber

Abstract

The invention relates to a test cabin for a low temperature test of a main combustion chamber, the test cabin comprises a test cabin cover, a test cabin front side plate, a test cabin rear side plateand a test cabin base, the test cabin cover is arc-shaped, the test cabin front side plate and the test cabin rear side plate are welded and fixed with the test cabin base, the test cabin cover is connected with the test cabin front side plate and the test cabin rear side plate in a fast disassembly manner to form the test cabin capable of accommodating a test piece, wherein the test cabin front side plate is provided with a cold air inlet cavity parallel to a front side plate plane and a cold air inlet communicating with the cold air inlet cavity, the test cabin rear side plate is provided with a cold air outlet cavity parallel to a rear side plate plane and a cold air outlet communicating with the cold air outlet cavity, vent holes are formed in both of the cold air inlet cavity and thecold air outlet cavity, and heat exchange in the test cabin is realized through the vent holes. The test cabin provided by the invention can provide special test conditions for performance tests of high-altitude start ignition of the combustion chamber and high-altitude aerodrome start ignition, and furthermore, the low temperature condition can be adjusted according to requirements and is not restricted by external condition factors.

Description

technical field [0001] The application belongs to the technical field of aero-engine test, and in particular relates to a test chamber for low temperature test of main combustion chamber. Background technique [0002] In order to better simulate the high-altitude start-up ignition of the engine and the ground-start ignition of the plateau airport, and to verify and record the ignition performance of the main combustion chamber under low temperature conditions, it is necessary to simulate the low-temperature environmental conditions of the main combustion chamber to determine the effect of low temperature on the ignition performance of the main combustion chamber. Impact. [0003] At present, the high-altitude start-up ignition of the combustion chamber and the ground start-up ignition performance of the plateau airport can only be carried out on the high-altitude platform, and only the whole machine test test can be carried out, and the component test cannot be carried out. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a test chamber for low temperature testing of the main combustion chamber to solve or alleviate at least one of the problems in the background art

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