Structural thermal stress fatigue experiment device based on high-temperature molten salt

Abstract

The invention discloses a structural thermal stress fatigue experiment device based on high-temperature molten salt, and relates to the technical field of structural mechanical property experiments, the main structure comprises a host, a molten salt circulation system, a pore structure sample and a heating mechanism; the pore structure sample is arranged on the main machine, and the upper end and the lower end of the pore structure sample and the molten salt circulating system form closed-loop circulation; and the heating mechanism is used for heating the pore structure sample. The molten salt circulation system can introduce circulating molten salt into the pore structure sample, and controls the temperature of the pore structure through the atmosphere furnace and an electric heating rod in the pore structure channel. The device provided by the invention can continuously provide molten salt for the pore structure, and can change the temperature on the surface of the pore structure and in different channel pores, so that the device can be used for researching the deformation condition and failure mode of the pore structure under the conditions of high thermal stress and thermal fatigue.

Description

technical field [0001] The invention relates to the technical field of structural mechanical performance experiments, in particular to a structural thermal stress fatigue experimental device based on high-temperature molten salt. Background technique [0002] In recent years, with the development of modern industry in the direction of high temperature, high load, and long life, the service environment of mechanical equipment has become increasingly harsh, and reports of high-temperature equipment failure are common. In addition to mechanical loads during operation, high-temperature components also bear thermal stress and thermal fatigue loads caused by temperature differences and fluctuations. However, the deformation and failure laws of the structure under thermal stress and thermal fatigue load are still unclear. There is a lack of experimental devices and methods for studying the deformation and failure modes of high-temperature structures under high thermal stress and t...

AI Technical Summary

Problems solved by technology

However, the deformation and failure laws of structures under thermal stress and thermal fatigue loads are still unclear.

There is a lack of experimental devices and methods for studying the deformation and failure modes of high-temperature structures under high thermal stress and thermal fatigue conditions

Images