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Aurashu Supports Yangjiang Nuclear Power Plant with Composite Pipeline Systems
Aurashu Supports Yangjiang Nuclear Power Plant with Composite Pipeline Systems
Project Background
The Yangjiang Nuclear Power Station, located in Guangdong Province, China, is a key facility in the country's clean energy strategy. This project involves upgrading critical piping networks for coolant, steam extraction, and auxiliary systems as part of the plant's expansion plan. Given the plant's stringent nuclear-grade requirements—including pressure, temperature, safety regulations, and service life—the plant selected advanced composite piping systems to ensure robust performance. Aurashu was selected as the piping system supplier and integrator for this project, providing coatings and composite-reinforced piping customized for nuclear power service.
Project Challenges
● Nuclear Power Plant Operating Conditions: Pipelines must withstand high pressures, temperatures, and stringent material standards while ensuring zero leaks and high integrity for decades.
● Corrosive and Wet Environment: Coastal locations and maritime climates increase the risk of corrosion and degradation, especially for external components or buried piping.
● Long Life and Low Maintenance Requirements: Nuclear power plant piping is expected to operate reliably for 30-40 years or more without major replacement, making durability paramount.
● Precision Manufacturing and Logistics: The project required prefabricated composite pipe sections, controlled welding/assembly, traceability, and strict quality control consistent with nuclear standards.
Solution: Composite Pipeline Systems & Service Support
To address these challenges, Aurashu provided a comprehensive pipeline solution:
● High-Grade Pipe Base Material: Select steel or alloy pipe that complies with nuclear-grade material standards (e.g., ASME B31.1/B31.3 nuclear specifications) as the foundation of the composite system.
● Composite Reinforcement and Coating Systems: Incorporate inner and/or outer composite layers (e.g., fiber-reinforced polymer wrap, corrosion-resistant coatings) and add an outer protective layer designed for marine/coastal environments and long-term durability.
● Prefabrication and On-Site Support: Factory-fabricate pipe sections, number them, and protect them for transportation. We also provide on-site installation support, welding supervision, non-destructive testing, and quality assurance to ensure compliance with nuclear power plant standards.
● Lifecycle Monitoring and Maintenance Guidance: Aurashu offers corrosion monitoring programs, coating integrity inspection programs, repair guidelines, and spare parts inventory to minimize unplanned downtime and ensure continuous operations.
Technical Highlights
● Pipe specification: e.g., Diameter DN 800, wall thickness 16 mm, composite wrap layer thickness 4 mm, external coating system designed for coastal zone.
● Designed service life: 30 + years under nuclear-plant operating conditions with minimal maintenance intervention.
● Quality & safety: Full NDE of welds, traceable material certificates, thermal expansion compensation, seismic support in line with nuclear-plant requirements.
● Logistics & installation: Multi-modal transport, factory packaging with cushioning/protection, sequence delivery to match plant-schedule installation windows.
Project Significance
This pipeline upgrade is a key component of the Yangjiang Nuclear Power Plant's comprehensive lifecycle strategy, designed to improve the reliability of fluid transport systems, reduce corrosion risks, and extend the service life of critical infrastructure. For Aurashu, this project demonstrates our ability to provide not only HVAC systems but also specialized composite piping solutions for high-end energy infrastructure. It also demonstrates our technical expertise and certified supply chain capabilities for nuclear-grade applications.
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