Application Case of Nuclear Power | Nano porous Thermal Insulation Material, Escorting Safe and Efficient Operation under High Temperature Conditions

The nuclear and power industries are the core pillars of the energy system, with extremely high standards for operational safety, system stability, and energy utilization efficiency. The insulation protection of high-temperature equipment and pipelines, from nuclear island core equipment and conventional island high-temperature steam pipelines to power plant thermal pipelines and key valve groups, directly affects the energy efficiency, operation and maintenance safety, and overall life cycle benefits of the unit. The nano porous thermal insulation material mainly made of high-purity nano silica provides a safe and reliable efficient thermal insulation solution for the nuclear power field with excellent high temperature resistance, long-term stability, and ultra-low thermal conductivity.

industry pain points

1. Strict safety standards: The radiation environment in nuclear power scenarios is complex, with high temperature and high pressure coexisting. Insulation materials are required to be inorganic, environmentally friendly, radiation resistant, and free of harmful substances released at high temperatures. Traditional organic insulation materials cannot meet nuclear grade safety requirements.

2. High heat loss and energy consumption: High temperature steam pipelines and thermal equipment in power plants have a large heat dissipation capacity, and traditional insulation materials have high thermal conductivity, resulting in significant heat loss and affecting the power generation efficiency and operational economy of the unit.

3. High operation and maintenance costs: The shutdown and maintenance costs of nuclear power and main power plant units are extremely high. Traditional insulation materials are prone to aging and powdering, requiring frequent replacement and maintenance, squeezing the production window period, and pushing up the full cycle operation and maintenance costs.

4. Compact spatial layout: The nuclear power island and power plant pipe gallery equipment are dense, the pipelines are complex, and the thick traditional insulation layer occupies a large space, making it difficult to adapt to the wrapping needs of narrow areas and irregular pipe fittings.

Solution

Using nano porous insulation materials to construct a graded insulation system for different regional operating conditions of nuclear power systems:

The nuclear island area is equipped with nuclear grade equipment and pipeline protection, capable of withstanding high temperature radiation and ensuring the safety of equipment and operations; Conventional islands and thermal pipelines are wrapped around steam pipes, turbines, etc. to reduce heat loss and improve the thermal cycle efficiency of the unit; Key equipment areas are shielded from high temperature sources to ensure stable operation of electrical control and instrumentation devices.

Application Effectiveness

After the application of nano porous insulation materials, nuclear power units have achieved multiple value upgrades: the heat loss of thermal pipelines has significantly decreased, and the energy efficiency and economic benefits of the units have been synchronously improved; The long-term performance of the material is stable, meeting the requirements of nuclear power safety regulations and extending the overall service life of the insulation system; The lightweight design is suitable for complex pipe gallery layouts, making construction and installation convenient, effectively reducing the operation and maintenance costs and safety risks throughout the entire life cycle of the equipment.