The main performance indicators of ceramic fiber refractory insulation materials mainly involve the highest service temperature (°C), thermal conductivity (W/(m K), compressive strength (MPa), bulk density (kg/m3), and flexural strength (MPa) etc. Among them, various performance indicators are interrelated and affect each other, so when selecting ceramic fiber products, we must follow the principle of "energy saving and practicality" to effectively avoid behaviors that may touch the loss of refractory materials , give full play to the advantages of ceramic fibers, and then ensure the realization of the refractory and heat preservation effect of chemical equipment.
01 Maximum operating temperature
The application of ceramic fibers in chemical equipment should take into account the temperature environment of chemical equipment to ensure that the limit temperature of ceramic fiber products is lower than the normal temperature of chemical equipment, and prevent the deformation and aging of ceramic fibers at high temperatures.
02 Thermal conductivity
The thermal conductivity reflects the thermal conductivity of ceramic fiber products and is also the main thermophysical property of ceramic fibers. When ceramic fibers are applied to chemical equipment, the thermal conductivity will occur due to changes in the temperature, moisture content and other factors in the chemical equipment. It is an important indicator of the equipment to achieve thermal insulation effect.
03 Compressive strength
When chemical equipment uses ceramic fiber products, it is also necessary to ensure that the ceramic fiber products can withstand the corresponding pressure load of chemical equipment and maintain the structural stability of the ceramic fiber.
04 Bulk density
The bulk density is the weight per unit volume of the thermal insulation material that has been dried and is in a loose state at a temperature of 110°C. It has an optimal bulk density value, that is, at the optimal bulk density, it has a small thermal conductivity and a good thermal insulation effect. In chemical equipment, sometimes in order to achieve the goal of energy saving and heat preservation, ceramic fiber products with more appropriate bulk density should be selected as much as possible.
05 Flexural strength
The flexural strength is the torque couple moment per unit area that the ceramic fiber can withstand when it is subjected to the bending load force in the working environment of chemical equipment. Because of the characteristics brought by the ceramic fiber product itself, the product itself has the characteristics of high resilience and high strength, and it has tear resistance before and after heating.
