固体蓄热部件抗热震性优化实验研究OA

To address the problems of poor thermal shock resistance and short service life of solid heat storage components in solid heat storage electric heat-ing devices,an experimental study on the thermal shock resistance of such components was carried out.The main material was selected as MgO,and the addi-tive materials were fine Fe2O3 powder and fine ZrO2 powder.By adjusting the ratio of the three materials,solid heat storage components with better thermal shock resistance were explored,and the operation pro-cess of the solid heat storage electric heating device was simulated.The experimental results show that when the mass ratio of sintered magnesia,Fe2O3,and ZrO2 is 86.4∶9.6∶4.0,the solid heat storage component exhibits a small attenuation rate of thermal conductiv-ity and specific heat capacity after repeated high-low temperature shock tests.The simulation results indi-cate that the solid heat storage electric heating device equipped with the optimized solid heat storage compo-nent has the lowest frontsurface temperature and the best thermal shock resistance.Compared with the origi-nal device,the service life of the device using the opti-mized solid heat storage component is improved.