In the power system, aluminum silicate fiber felt is mainly used in the following aspects:

I. Thermal insulation of steam pipes and boilers

Aluminum silicate fiber felt is widely used as coating material for steam pipes and boilers of power stations because of its low thermal conductivity and good thermal insulation performance. It can effectively reduce heat loss, improve energy utilization efficiency, and at the same time reduce the external surface temperature of equipment to ensure the safety of operators.

II. Thermal insulation of steam turbines and gas turbines

In steam turbine and gas turbine, aluminum silicate fiber felt is used as heat insulation material, which can effectively reduce the heat loss and heat energy loss during equipment operation and improve the operation efficiency of equipment. In addition, it can also protect the equipment from high temperature erosion and prolong the service life of the equipment.

III. Fire prevention and heat insulation of high-temperature equipment

Aluminum silicate fiber felt has excellent fireproof performance, which is suitable for high-temperature equipment in power system, such as weldments and special-shaped metal castings, and is used to eliminate stress and heat insulation. In high-rise buildings, it is also used for fire prevention and heat insulation to improve the fire safety of buildings.

IV. Composite thermal insulation structure

In thermal power plants, aluminum silicate fiber felt is often combined with other thermal insulation materials to form a composite thermal insulation structure. For example, the furnace wall and hot air duct of the boiler body with a medium temperature of not less than 300℃ are combined with high-temperature glass wool and aluminum silicate needled blanket, and the inner layer is made of aluminum silicate needled blanket and the outer layer is made of high-temperature glass wool.

V. Thermal insulation of small pipelines

For pipes with outer diameter less than 38mm, aluminum silicate fiber felt is made into fiber rope for thermal insulation. The flexibility and thermal insulation of this material make it very suitable for the thermal insulation requirements of small pipelines.

VI. Improving the operating efficiency of equipment

The use of aluminum silicate fiber felt can significantly improve the operating efficiency of power equipment. For example, in the trolley resistance furnace, replacing the traditional high-temperature refractory brick with aluminum silicate fiber felt can significantly reduce the energy consumption of the equipment, shorten the heating time and improve the service life of the equipment.

VII. Environmental protection and energy conservation

The low thermal conductivity and good thermal insulation of aluminum silicate fiber felt not only improve energy utilization efficiency, but also reduce greenhouse gas emissions, which meets the requirements of environmental protection and energy saving in power industry.

To sum up, aluminum silicate fiber felt is widely used and important in power system, and its excellent thermal insulation, fire prevention and energy saving performance make it the first choice for thermal insulation of power equipment.