![Magnesium iron thermal storage brick](http://en.lnjynh.cn/data/upload/202002/20200207144157_280.jpg)
The use of the high heat capacity characteristics of magnesium thermal storage bricks to design build electric thermal energy storage devices is a relatively economical technical facility for leveling electrical loads. The energy storage of refractory materials for electric heating energy storage devices is actually refractory products with large heat storage capacity as energy storage elements, the device casing is reinforced with light refractory materials to enhance thermal insulation.
The operation process of the electric thermal energy storage device is: When the power demand is small at night, the heat storage brick is heated to 800 ° C by a resistance heating system, the electrical energy is converted into thermal energy to be stored. In the daytime power peak period, air is fed into the energy storage device through the air supply system, the temperature is adjusted to supply hot air to the user, thereby avoiding the user to use electricity to heat reduce the peak power load during peak load periods.
Refractory materials used in electric thermal energy storage devices must have a high heat capacity, which depends on their heat capacity bulk density. Secondly, in order to rapidly heat the energy storage device to release store energy, it is required that the refractory used in the electric thermal energy storage device should have high thermal conductivity. In addition, the life of electrothermal energy storage devices is often as long as more than 30 years the cooling cycle is thousands of times. Therefore, the refractory materials used to build electrothermal energy storage devices must have high thermal shock resistance, that is, they must have long thermal fatigue life Performance.
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