“国之重器”填补空白，接连创造全新纪录，探访中国新一代超大型耙吸挖泥船

Core Viewpoint - The successful sea trials of the "Tongjun" dredger mark a significant advancement in China's high-end dredging equipment, showcasing the country's capability for independent design and construction in this sector [1][2][7]. Group 1: Technical Specifications - The "Tongjun" dredger has a maximum capacity of 38,168 cubic meters, making it the largest in Asia and the second largest in the world [2]. - The vessel measures 198 meters in length and 38.5 meters in width, with a maximum dredging depth of 120 meters [3]. - It features two 9,000 kW internal mud pumps, the largest in the world for this type of vessel, and two 5,000 kW underwater mud pumps, which are the largest in Asia and second largest globally [3][6]. Group 2: Performance and Testing - During a five-day sea trial, the "Tongjun" underwent 30 major tests and 91 sub-tests, confirming its advanced capabilities in complex sea conditions [2][4]. - The dredger demonstrated excellent stability and performance, even in sea conditions rated at level 6, with its main propulsion system operating continuously for 48 hours without issues [3][4]. Group 3: Innovation and Environmental Impact - The "Tongjun" is equipped with an intelligent monitoring and management platform that integrates various technologies, allowing for real-time data on underwater conditions and operational efficiency [5]. - It features a dual-fuel system that can switch between methanol and diesel, significantly reducing carbon emissions and contributing to the green transformation of the dredging industry [6]. Group 4: Strategic Importance - The development of the "Tongjun" represents a milestone in China's dredging industry, moving from being a major player to a strong player in the global market [2][7]. - The project has established a complete technical system for the design, manufacturing, and testing of ultra-large dredgers, laying the groundwork for future advancements in this field [7].