Device and method for testing heat insulation performance of heat insulation material for high-speed aircraft engine

Abstract

The invention relates to a device and a method for testing the heat insulation performance of a heat insulation material for a high-speed aircraft engine. The device comprises a shell, a high-temperature-resistant heat insulation material, a sample holder, a hot surface heating body, a cold surface heating body and a detection control system; the high-temperature-resistant heat insulation material is filled in the shell, a channel for the sample rack to pass in and out is arranged in the high-temperature-resistant heat insulation material, the shell is provided with an opening, so that the sample rack passes in and out of the channel, two corresponding spaces are arranged on the high-temperature-resistant heat-insulating material on the opposite sides of the channel, and a hot surface heating body is arranged in the first space; a cold surface heating body is arranged in the second space; and the sample rack comprises a sample placing area, and two opposite sides of the sample placing area are just positioned between the hot surface heating body and the cold surface heating body. The device and the method can simulate the environmental conditions of the thermal insulation material for the high-speed aircraft, and have the characteristics of high simulation degree, convenience in operation, practicability, economy and the like.

Description

Technical field[0001]The present invention relates to a heat insulating material detection technique for high-speed aircraft engine, and more particularly to a heat insulating performance test apparatus and test method of a heat insulating material for high-speed aircraft engine.Background technique[0002]At present, the test device for high temperature insulation performance of the insulation material can be divided into the following categories, the first type of material insulation performance test device is the irradiated thermal insulation test device, wherein the irradiation light source is mainly a quartz lamp, and there is a small device The light source is laser, and such devices are only heated by infrared irradiation, and the measurement environment is mostly open or semi-closed (sample partial insulation), and the sample receives hot flow temperature while spontaneously radiation and around Air conductive heat transfer. The second type of heat insulating performance test ...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a heat insulation performance test device for high-speed aircraft engine heat insulation materials and its preparation method. The technical problem to be solved is the current There is a discrepancy between the test environment and the actual application environment, which affects the accuracy of the test results

Images