Generally speaking, the heat dissipation methods of thermal equipment mainly include conduction, convection and radiation. With its unique structure, the ceramic fiber blanket weakens the three heat dissipation methods and reduces the heat loss.
01 Weakening of conduction heat dissipation
The heat of the heat source must first pass through the ceramic fiber blanket, and the conduction and heat dissipation can only be carried out in the direction of the fiber rod, and the fibers of the ceramic fiber blanket have no directionality, which virtually prolongs the heat transfer path and weakens the heat conduction. In addition, the porosity of the ceramic fiber blanket is 93%, and 80% of the contact between fibers is point contact. The point contact and high porosity further weaken the conduction of heat and increase the thermal resistance of conduction and heat dissipation.
02 Weakening of convection heat dissipation
The porosity of the ceramic fiber blanket is very high, and the gas is divided by the fibers into many small stomata that are almost stationary, and the pressure in the dispersed porous silo is constant, and the air pressure will form a dense solid shield together with the solid fibers, forming a shielding air pressure, which hinders the intrusion of thermal airflow and weakens heat dissipation.
03 Weakening of radiation heat dissipation
The ceramic fiber itself is a white, smooth reflector, which can effectively reduce heat radiation.
Ceramic fiber blankets are widely used in the thermal insulation layer of heating furnace lining, high temperature flue, pipeline and various thermal equipment due to their superior thermal insulation advantages.
