Core Product & Technical Features

1. Design & Manufacturing of Large Type C Independent Fuel Tank

   The fuel tank is constructed from high-toughness cryogenic steel (such as 9Ni steel or 304L stainless steel) using an integral double-layer cylindrical structure. The space between the inner shell and outer shell is filled with high-performance insulation material and evacuated to a high vacuum, ensuring a daily Boil-Off Rate (BOR) below 0.15%/day, significantly reducing natural fuel loss during vessel operation. Its structural strength is optimized through Finite Element Analysis (FEA) to adequately withstand sloshing, impact, and thermal stresses under complex sea conditions.

2. Integrated Marine Safety & Monitoring System

   The fuel tank is integrated with a complete marine-grade safety monitoring and control system, including:

   • Triple Monitoring of Level, Temperature, and Pressure: Multi-point sensors enable precise perception of the tank's internal status.

   • Secondary Barrier Leak Detection: Continuously monitors vacuum level and gas composition between the inner and outer shells, providing early leak.

   • Intelligent Fuel Delivery & Pressure Management: Deeply integrated with the vessel's FGSS (Fuel Gas Supply System) for stable fuel delivery and automatic BOG management.

3. Enhanced Adaptability for Extreme Marine Environments

   To address the salt spray corrosion, wave impact, and continuous vibration encountered during long-term voyages, the fuel tank features specialized reinforcements:

   • The outer shell employs a heavy-duty anti-corrosion coating system, with 100% non-destructive testing performed on critical welds.

   • The support structure utilizes flexible connections to the hull, effectively absorbing vibration and deformation stress.

   • All instruments and valves possess marine certifications for vibration resistance and explosion-proofing.

4. Full Lifecycle Data Management & Intelligent Maintenance

   As a data node within the smart ship system, the fuel tank's operational data (evaporation rate, temperature field, stress variations) can be integrated into the vessel's energy efficiency management system. Data analysis enables predictive maintenance scheduling and optimized bunkering strategies, achieving digital lifecycle management from manufacturing and installation to operation and maintenance.

Project Value & Industry Significance

The successful delivery and application of the Shengfa 80-cubic-meter marine LNG fuel tank not only meets shipowners' urgent need for high-capacity, high-safety, low-evaporation fuel storage equipment but also validates the company's independent R&D and high-end manufacturing capabilities in this niche sector through its outstanding performance. This product provides a reliable new alternative for domestic and international shipowners and shipyards beyond traditional European suppliers. It holds significant importance for promoting the adoption of LNG-powered vessels and enhancing China's position in the high-end marine clean energy equipment industry chain.