In the high-temperature equipment where space is strictly limited, the special energy-saving nano-porous heat insulation material is the only choice. It is widely used in all kinds of complex thermal equipment, and has solved many worldwide heat insulation problems.
The gutter energy-saving nano-porous thermal insulation material adopts special nano-inorganic refractory powder, which has a huge specific surface area. The contact between nanoparticles is extremely small point contact, and the thermal resistance of point contact is very large, which makes the conduction and heat transfer effect of the material very small, resulting in a very small conduction and heat transfer coefficient of the gutter energy-saving nano-porous thermal insulation material. A large number of nanopores are formed between nanoparticles, with an average size of 20 nanometers, while the average free path of molecular thermal motion in still air at room temperature is 60 nanometers. Air molecules are locked in the nanopores of powder, and the tiny convective heat transfer between molecules in still air disappears, which makes the room temperature thermal conductivity of energy-saving nanoporous thermal insulation material lower than that of still air. At high temperature, the main function of heat transfer is thermal radiation. A special infrared additive is added to the energy-saving nano-porous thermal insulation material, which can block and reflect infrared rays at high temperature, reduce the radiation heat transfer effect to the lowest point, and reduce the radiation heat transfer coefficient of the material to the lowest value at high temperature.