Why use smokeless ceramic fiber cloth for steam turbine insulation sleeves
The thermal insulation sleeve mentioned here refers to a flexible detachable thermal insulation sleeve, that is, a thermal insulation sleeve made of various high-temperature resistant fiber cloths, blankets, etc. through multiple sewing combinations.
The temperature of the equipment facing the flexible detachable thermal insulation sleeve is high or low, the low is one or two hundred degrees, and the high may be several hundred degrees. This requires different material choices to face the equipment with different temperatures.
The outer skin of the low-temperature flexible detachable insulation cover (including the outermost surface and the side contacting the equipment) naturally does not require high temperature resistance materials. In most cases, glass fiber silica gel cloth, glass fiber coated cloth, or even aramid cloth are used. Polyester cloth, spandex cloth, etc. are fine, but materials with high temperature resistance such as smokeless ceramic fiber cloth are not used. The classification temperature of smokeless ceramic fiber cloth is 1260°C.
However, the steam turbine insulation jacket is more special. One is that the surface temperature of the steam turbine is relatively high, and the other is that the requirements for fire prevention in the work place of the steam turbine are relatively high. Therefore, the steam turbine insulation jacket takes into account two functions: one is heat preservation and the other is fire prevention.
Then the temperature resistance requirements of the outer skin of the steam turbine insulation jacket will be improved. At this time, the ceramic fiber cloth will stand out. However, due to the high surface temperature of the steam turbine, the temperature inside the steam turbine insulation jacket during operation is sufficient for the ceramic fiber cloth The organic components in the yarn are carbonized and smoked. This will cause an unfriendly working environment, so smokeless ceramic fiber cloth is needed. This is the reason why smokeless ceramic fiber cloth should be used for steam turbine insulation jackets.
Doing fire prevention is doing conscience, doing insulation is doing merit, Feipfu smokeless ceramic fiber cloth cares for your favorite things.