The main purpose of heat preservation is to reduce heat loss of heat medium in the process of transportation, save fuel and ensure the temperature. Insulation materials can be divided into daub type, winding type, filling type, perfusion type, spray type and so on according to the performance and construction method. Ceramic fiber module is a kind of light refractory thermal insulation material in recent ten years.
To determine the thermal insulation performance of a material, we should proceed from the following aspects:
Thermal conductivity: It is a parameter of heat transfer capacity of insulation materials, reflects the thermal conductivity of materials, and is the main thermal physical characteristics of insulation materials. The thermal conductivity of ceramic fiber module at 600° is only 0.16w/(M.K).
Bulk density: each kind of insulation material has a reasonable bulk density, in this interval has a smaller thermal conductivity and better insulation effect. In order to save energy and reduce the load of thermal insulation structure, thermal insulation materials with small bulk density should be used as far as possible. General soft bulk density shall not be more than 150kg/m3, and the bulk density of ceramic fiber blanket is only 96~ 128,150kg /m3, and the bulk density of ceramic fiber module is also between 210-220 kg/m3. ?
High service temperature: refers to the limit temperature that the insulation material can bear when it works safely and reliably for a long time. The long-term use temperature of ceramic fiber module is between 850 and 1300 degrees, which is the product with high temperature resistance except mullite fiber.
Compressive strength: Ceramic fiber modules belong to soft, loose insulation materials, generally subject to compression load will not be damaged.
Coefficient of linear expansion: if the coefficient of linear expansion of thermal insulation material is large, the internal deformation will produce greater stress after being heated, destroying the thermal insulation structure. Different from conventional insulation materials, ceramic fiber modules do not expand when heated, but have a line shrinkage rate of less than 3%. There is no need to reserve expansion joints when used, and compaction can be done when installed.
Chemical properties:Different use environment requires that the insulation material has good chemical stability. Resistant to acid and alkali, corrosion and oxidation, ceramic fiber modules are excellent in this respect.
Insulation layer thickness: In order to reduce heat loss of insulation structure, insulation layer thickness should be calculated according to the method of “economic thickness”. Ceramic fiber module can be customized according to the use environment.
It can be seen that, compared with other insulation materials, ceramic fiber module insulation effect is more prominent.
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SHANDONG REDON HIGH-TEMPERATURE MATERIAL Co. ,LTD. has the domestic advanced production equipment and leading production technology, with an annual output of 1050 ceramic fiber series products, 1260 ceramic fiber series products, 1400 ceramic fiber series products, 1600 polycrystalline series products tens of thousands of tons. With cotton, blankets, blanket, board, paper and all kinds of textiles, special-shaped products, modules, folding, castable, spraying, etc. Various forms of more than 30 kinds of products, can meet the insulation requirements of high temperature field under different conditions, welcome to have a friend need to click the website lower right online customer service or submit online enquiry, we will contact you the first time.