Titanium alloy combustion test device and test method thereof

Abstract

The invention belongs to the technical field of aviation engines, and relates to a titanium alloy combustion test device and a test method thereof. The test device includes a combustion chamber, a fiber laser, a gas supply pipe, an exhaust pipe, a gas cylinder set, a mass flow controller, a check valve, a gas heater, an intake valve, a pressure control valve, an exhaust valve, a camera, and an infrared temperature sensor, a pressure sensor, a thermocouples, a sample heating device, a sample holder, a computer and the like. The gas cylinder set is used as a gas source, the gas heater heats thegas, the mass flow controller and the pressure control valve control the pressure in the combustion chamber, the sample heating device heats a sample, the fiber laser ignites the sample, a titanium alloy material / component combustion test with simulation conditions of a gas temperature to be 500 to 600 DEG C, the pressure to be 1.0 to 1.5 MPa and the sample temperature to be 600 to 900 DEG C can be realized, a computer program is adopted to control the test parameters such as the ignition time, and the test precision is higher. The test device has a compact structure, the mounting is convenient, the test cost is low, the urgent needs for aircraft engine titanium alloy combustion characteristic evaluation at preset and in the future can be met, and the application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of aero-engines, and relates to a titanium alloy combustion test device and a test method thereof, in particular to a titanium alloy combustion test device and method under simulated service conditions. Background technique [0002] Aeroengine titanium fire is a typical titanium alloy combustion disaster failure, which is extremely harmful. The sharp contradiction between the demand for high-performance aero-engines to increase the amount of titanium alloys and the increasing tendency of titanium fires is prominent, resulting in frequent occurrences of titanium fires. In addition to more than 100 titanium fires in foreign military and civil aero-engines, there have also been too many high-performance aero-engines being tested in my country in recent years, which not only caused huge economic losses, but also seriously hindered the large selection of titanium alloys for engine design. . Effectively preventin...

AI Technical Summary

Problems solved by technology

However, due to the use of carbon dioxide laser in this test device, not only the overall structure volume is large, the energy consumption is high, but also the test efficiency is low, and the control parameters such as the highest airflow temperature and pressure cannot meet the combustion characteristics of titanium alloys under the service conditions of current and future high-performance aeroengines. urgent need for evaluation

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