Gas heating superhigh temperature environment test system

Abstract

The invention belongs to the technical field of aviation and aerospace test environment simulation, and discloses a gas heating superhigh temperature environment test system. The system comprises a computer, wherein the computer is connected with a central control unit; the central control unit is connected with a combustion chamber; the central control unit is connected with a magnetic control valve, a flow sensor, a temperature sensor and a salt spray device; the magnetic control valve is connected with a gas supply device, a cold air supply device and a waste gas recovery and treatment device; and the salt spray device is connected with the cold air supply device. According to the system, the loss problem of the heat in a transfer process is solved; the oxy-acetylene flame temperature upper limit can be up to 2800 DEG C, the test environment temperature can be 1500 DEG C or above through gas heating, and the temperature peak value is high; the uniform temperature zone is more stable; the temperature fluctuation is adjusted through controlling the gas pressure, so that the feedback and response are quick, the temperature control under superhigh temperature is stable, and the temperature rising / falling rate adjusting range is wide and can be up to 200 DEG C / S; and the high temperature waste gas is recycled, so that the energy is saved.

Description

technical field [0001] The invention belongs to the technical field of aviation and aerospace test environment simulation, and in particular relates to a gas heating ultra-high temperature environment test system. Background technique [0002] The temperature bearing capacity of the hot-end parts is the key factor restricting the development of my country's aviation and aerospace materials technology. It has been working in the environment of uneven temperature field, stress field, gas corrosion and high temperature oxidation for a long time, and is faced with thermal stress corrosion, oxidation and thermal fatigue. and corrosion and other failure threats. In recent years, the mature application of single crystal superalloys and the rapid development of ceramic matrix composites have greatly improved the comprehensive performance of hot end components. However, due to the limitations of technical means and test equipment, the research on the mechanical behavior of materials ...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the traditional high-temperature test system has slow heating and cooling, large temperature control error, high energy consumption, and unstable heating zone.

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