关键核心部件突破！我国自主研发打桩船“心脏”创多个全球第一

Core Insights - The world's largest pile-driving ship's hydraulic cylinder has successfully rolled off the production line in Jiangsu, showcasing China's advanced engineering capabilities in this sector [4][5] - The hydraulic cylinder, with a diameter of 1.6 meters and a stroke length of 21 meters, is designed to lift up to 5,000 tons, equivalent to lifting 3,500 family cars at once, marking it as the largest in the world [4] - This cylinder will be installed on a 156-meter dynamically positioned pile-driving vessel, which is currently under construction by China Railway Construction Corporation (CRCC) [4] Technology and Innovation - The hydraulic cylinder is a critical component of hydraulic systems, converting hydraulic energy into mechanical energy, thus directly impacting the reliability, precision, and efficiency of industrial equipment [4] - The development involved collaboration between CRCC, leading domestic enterprises like Hengli Hydraulic, and renowned universities, forming a comprehensive industry-academia-research application system [4] - The project team overcame significant manufacturing challenges, ensuring high reliability and durability of the "super cylinder" despite its extreme dimensions [4] Environmental and Efficiency Advancements - The hydraulic cylinder integrates the world's first closed energy recovery system, capable of converting potential energy from the pile frame's descent or tilt into electrical energy, achieving up to 40% energy recovery [5] - The system intelligently switches between "energy consumption" and "regeneration" modes based on actual load during pile-driving operations, optimizing energy efficiency and significantly reducing overall operational energy consumption [5] - The successful development of this major equipment represents a significant breakthrough for China in the high-end offshore engineering core component sector, enhancing the country's capabilities in deep-sea engineering, cross-sea bridges, and offshore wind power construction [5]