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Yulong Island, Shandong Province, China – October 27, 2025 – The Yulong Island Petrochemical Integration Project, a core initiative in Shandong Province's "14th Five-Year Plan" with an investment exceeding RMB 100 billion, is making significant progress. This world-class industrial base, centered on a 20-million-ton/year refining unit and major chemical production facilities (including 3-million-ton/year Ethylene and 3-million-ton/year Mixed Xylene), is crucial for upgrading the province’s chemical industry and accelerating its high-quality development toward an integrated "Refining-New Materials" value chain.
Amidst the complex network of pipelines and towering storage tanks at the construction site, a critical technology is enabling operational success: Anhui Huanrui Heating Manufacturing Co.,Ltd self-regulating electric heat tracing cables.
The Yulong Island project requires reliable temperature control to manage the flow of low-temperature, high-viscosity, or easily solidified media (such as ethylene, propylene, and residue oil). Uncontrolled temperatures can lead to media solidification, pipeline blockages, and severe safety hazards.
Traditional heat tracing methods are often high-energy consumers with low thermal efficiency. Electric heat tracing, however, has emerged as the ideal solution due to its precise temperature control, energy efficiency, and environmental advantages.
The project’s diverse and demanding environments imposed strict requirements on the heat tracing system:
Complex Environment Adaptability: Stable operation required in corrosive and explosive hazardous areas.
Environmental & Energy Goals: Need for reduced energy consumption to meet cost-saving and "Dual Carbon" (decarbonization) objectives.
Smart Management: Requirement for an intelligent heat tracing system for easy user management.
Anhui Huanrui supplied over 200,000 meters of its self-regulating electric heat tracing cables, providing essential pipeline antifreeze and process temperature maintenance across key zones of the Yulong Island project, including:
Comprehensive Pipe Racks
Chemical and Refining Tank Farms
Residue Oil Hydro-processing Unit
Ethylene Unit, Recovery Unit, and Propylene Pre-refining Unit
Huanrui’s technology was chosen because its features precisely match the project's stringent demands:
| Feature | Technical Advantage | Project Benefit |
| Self-Regulating Technology | Utilizes PTC (Positive Temperature Coefficient) materials to automatically adjust power output based on pipe temperature. | Prevents overheating, eliminates energy waste, and ensures process stability. |
| Safety and Certification | Comprehensive explosion-proof certification. | Ensures stable operation in hazardous and potentially explosive areas. |
| Green Operation | High thermal conversion efficiency with zero pollutant emissions. | Aligns perfectly with the Yulong Island project's green and low-carbon development philosophy. |
| Adaptability | Can be cut to length and overlapped during installation. | Simplifies installation across complex pipeline layouts in pipe racks and tank farms. |
| Durability | Features a corrosion-resistant fluoroplastic outer jacket. | Ensures long service life in the high-salinity, coastal environment. |
A Catalyst for Future Development
This collaboration is not just a validation of Anhui Huanrui’s technical strength but a significant accelerator for its future trajectory:
Industry Benchmark Effect: Serving as the electric heat tracing supplier for a domestic multi-million-ton integrated refining and chemical project significantly boosts Huanrui's brand influence and market credibility.
Accelerated Technological Iteration: Demands from the project, such as those for ultra-long-distance heat tracing and high-precision temperature control, are driving Huanrui to optimize product performance (e.g., reducing start-up current, extending thermal stability).
New Green Transition Opportunities: The project's emphasis on low-carbon technology is spurring Huanrui to accelerate the development of new energy heat tracing solutions (such as for hydrogen storage and transport), positioning the company strategically in the green economy race
