Design issues of molten salt heating tanks
Thread Content
I am currently working on a molten salt electric heating tank. The composition of the molten salt is: 53% KNO3, 40% NaNO2, and 7% NaNO3. The design temperature is 550°C, and the operating pressure is at atmospheric pressure. The volume is approximately 2 m3. For the material, Q345R is planned to be used; I hope those who have worked on similar tanks can offer some advice.
Q345R definitely won’t work for this operating condition. The maximum allowable temperature for using Q345R in containers is 475°C; considering the corrosive effect of salts, it is recommended to use materials such as 304L or 904L, taking intergranular corrosion into account