These 'firsts' witness China's manufacturing moving towards a' new 'direction
2024-12-26
The C929 has signed the world's first user, achieving a new breakthrough in the large aircraft industry; The first domestically produced large cruise ship has officially entered commercial operation, setting sail for a new era of maritime tourism; The first industrial scale offshore wind power hydrogen production demonstration project in Asia has landed, exploring new paths for green energy development... Looking back at 2024, exciting "firsts" and "firsts" have emerged one after another. These achievements witness the continuous progress of China's manufacturing industry, taking big strides on the path of high-end, intelligent, and green development, blooming unique charm on the global stage, and surging with a magnificent "new force". The C929 has signed with the world's first user! At the 15th China International Aviation and Aerospace Exhibition held recently, Air China and Commercial Aircraft Corporation of China signed the first user framework agreement for C929 passenger aircraft. Air China intends to become the world's first user of C929 wide body passenger aircraft. The C929 is another heavyweight project for China in the field of large aircraft, following the C919. The relevant person in charge of COMAC introduced that the C929 wide body passenger aircraft is currently in the preliminary design stage, with a basic seat class of 280 seats and a range of up to 12000 kilometers, which can meet the demand of the global international and regional air passenger transport market. As China's first jet airliner with independent intellectual property rights, the C919 has achieved remarkable success: with a total order volume of over 1000 aircraft, nearly 50 will be delivered in 2024; Accumulated commercial flight time exceeding 17000 hours; 15 routes have been opened, and market adaptability and reliability continue to improve. On the basis of the C919, the C929 has a wider body design, which can carry more passengers and has a longer range. The relevant person in charge of COMAC stated that the C929 is of great significance in improving the domestic commercial aircraft spectrum and driving the development of the commercial aircraft industry. With the signing of the world's first user for C929, China's large aircraft industry has embarked on a new journey and is expected to occupy an important position in the future global aviation market, injecting stronger impetus into the development of China's aviation manufacturing industry. On December 18th, the world's largest compressed air energy storage power station, Jintan Salt Cave Compressed Air Energy Storage Power Generation Phase II Project, officially started construction of the world's largest "air power bank". This project is located in Jintan District, Changzhou City, Jiangsu Province. It is currently the world's largest compressed air energy storage power station in terms of single unit power, total capacity, and comprehensive efficiency. As a large-scale new energy storage method, salt cavern compressed air energy storage technology has developed rapidly in recent years, and power stations built based on this technology are vividly called "air power banks". During periods of low electricity demand, power stations act like huge "pumps", using surplus electricity to drive equipment, compressing and injecting a large amount of air into abandoned salt caverns thousands of meters deep underground for safe storage under high voltage. When the demand for electricity surges, the stored air is released and efficiently converted into electrical energy through precise power generation devices, utilizing the principle of air expansion to supplement the power grid in a timely manner and effectively alleviate peak electricity pressure. It is reported that the project plans to construct two sets of 350 megawatt non supplementary combustion compressed air energy storage units, which can store energy for 8 hours and generate electricity for 4 hours. The energy conversion efficiency will exceed 70%, and a single charge can store 2.8 million kWh of electricity, which can meet the charging needs of 100000 new energy vehicles. This project has broken through the "bottleneck" technological barriers, developed and manufactured the world's most advanced air turbine and compressor units, and achieved 100% localization of core equipment. After completion, the annual power generation will reach 924 million kilowatt hours, saving over 270000 tons of standard coal and reducing carbon dioxide emissions by more than 520000 tons throughout the year. This will further fill the gap in the commercial application of large-scale compressed air energy storage in China. The first intelligent factory for marine oil and gas equipment in China has built a steel plate weighing nearly 10 tons. After just 20 minutes and more than 10 processes, it can be processed into various platform parts of different sizes and shapes; Through intelligent production lines, these parts have transformed into tens of thousands of tons of marine equipment... In China's first prefabrication workshop for marine oil and gas equipment, the intelligent production scene is eye-catching. On October 30th, the second phase of the intelligent manufacturing base project of CNOOC Engineering was officially put into operation, marking the completion of China's first "intelligent factory" for offshore oil and gas equipment. The factory is located in Binhai New Area, Tianjin, covering an area of approximately 575000 square meters with a designed annual production capacity of 88000 tons. Three intelligent production lines are set up in the workshop, and through the application of digital production orders, multiple processes such as feeding, conveying, lifting, cutting, and welding are automated and intelligent. Compared with traditional production modes, the construction efficiency is improved by more than 25% Liu Chao, Deputy Manager of the Prefabrication Workshop at CNOOC Engineering Tianjin Intelligent Manufacturing Base, said. With the help of information technology and artificial intelligence, China's offshore oil industry is gradually achieving intelligent transformation: a number of intelligent manufacturing bases such as the country's first offshore oil and gas production process equipment and the first extraction tool are being intensively constructed, the first offshore intelligent oilfield in China and the world's first remotely controlled ultra deepwater production platform have been successively built... These new breakthroughs and developments not only improve the technological level of China's offshore oil equipment, but also enhance China's competitiveness in the global offshore oil and gas market. On January 1, 2024, the first domestically produced large cruise ship, the "Aida Modu", constructed by Shanghai Waigaoqiao Shipbuilding Co., Ltd., a subsidiary of China Shipbuilding Industry Corporation, officially began its commercial maiden voyage at the Wusongkou International Cruise Port in Shanghai. This marks a significant breakthrough in the manufacturing and operation of large cruise ships in China, and domestic large cruise ships have officially set sail towards the sea of the world. Ada? The "Magic City" has undergone eight years of scientific research and five years of design and construction, with a total tonnage of 135500 tons. The ship has 2125 guest rooms and can accommodate 5246 passengers. It is equipped with a 16 story, 40000 square meter living and entertainment public area. Chen Gang, General Manager of Shanghai Waigaoqiao Shipbuilding Co., Ltd., said, "We have collaborated and managed 361 global suppliers and 1105 secondary supporting enterprises, breaking through a series of key core technologies and demonstrating strong capabilities in the design and construction of large cruise ships and complex system engineering management. As of December 15, 2024, the" Aida Magic City "has successfully operated nearly 80 voyages and served nearly 300000 tourists. The person in charge of Waigaoqiao Shipbuilding introduced that in order to ensure the normal and efficient operation of the cruise ship, the company actively handles the execution of projects after the delivery of the ship, and has organized about 1600 people to board the ship for operations, successively completing difficult construction tasks such as fire door replacement and veneer maintenance; Develop and launch an after-sales service platform to provide 24/7 service support for cruise ship operations. Ada? The successful operation of the "Magic City" has brought a new choice for high-quality sea tourism to global consumers, and also demonstrated China's strong strength and unlimited potential in the field of high-end equipment manufacturing to the world. Looking towards the future, the prospects of China's cruise industry are promising. On March 21st, the first hydrogen energy urban train in China, independently developed by CRRC, conducted operational tests on the CRRC Changke test line. The train successfully ran at full load at a speed of 160 kilometers per hour, achieving full system, full scenario, and multi-level performance verification, marking a new breakthrough in the application of hydrogen energy in the field of rail transit. What is the difference between hydrogen trains? Compared with traditional trains that rely on fossil fuels or obtain electrical energy from the overhead contact system, the first hydrogen powered urban train that successfully reached speed this time has a built-in hydrogen power system, providing a strong and durable power source for vehicle operation. Experimental data shows that the average energy consumption per kilometer of train operation is 5 kilowatt hours, reaching the international leading level. This train also applies a distributed hybrid power supply solution with multiple energy storage and hydrogen energy systems, and adopts the hydrogen electric hybrid energy management strategy and control system independently developed by CRRC Changke, greatly improving energy utilization efficiency, enhancing the flexibility and reliability of energy supply, with a maximum range of over 1000 kilometers. This experiment is an important milestone in the research and application of hydrogen energy technology in China's rail transit industry, which will further promote the realization of independent and controllable key technologies for high-end transportation equipment, and provide technological support for accelerating the formation of new quality productivity in China's transportation equipment. The 300 MW F-class heavy-duty gas turbine ignition ultra large gas turbine is widely recognized as one of the most difficult mechanical equipment to manufacture in the world, and is hailed as the "pearl on the crown of the manufacturing industry". On October 7th, a 300 MW F-class heavy-duty gas turbine independently developed by China was successfully ignited in Lingang, Shanghai, marking a new breakthrough in project advancement. The ignition test of gas turbine is the first major test in the verification stage of the whole machine test, laying the foundation for the comprehensive verification of the whole machine. The successful ignition of the gas turbine this time is another important milestone achievement since the first prototype was assembled and rolled off the assembly line in February this year, marking the comprehensive entry of the project development into the stage of complete machine testing and verification. It is reported that the combined cycle efficiency of this machine exceeds 60%. In the process of converting fuel into electrical energy, it has a higher energy conversion efficiency compared to traditional gas turbines, which can effectively reduce energy waste; In terms of operational stability, it can achieve continuous and stable operation for over 8000 hours, meeting the stringent stability requirements of large-scale power supply systems. The relevant person in charge of State Power Investment Corporation stated that the 300 MW F-class heavy-duty gas turbine is the first domestically developed heavy-duty gas turbine with the highest power and highest technical level in China, and its technical indicators are basically equivalent to the international mainstream F-class heavy-duty gas turbine. The adoption of new technologies, materials, and processes has a significant driving and radiating effect on the progress of China's gas turbine basic disciplines and industrial technology development, and is of great significance for ensuring China's energy security and green development. The "world's first crane" was successfully delivered on March 6th this year. The newly launched "world's first crane" - XCA4000 wheeled crane was successfully delivered, and XCMG Group once again broke the world record for the research and development of a thousand ton crane created by itself. This latest wheeled crane is 7 meters high and 3.8 meters wide, with a chassis equipped with 11 axle tires. It requires more than ten flatbed trucks for road transportation. It witnessed the leap of China's cranes from 5 tons to 4000 tons, "said Li Changqing, Director of the Overall Office of the All Ground Crane Research Institute of XCMG Crane Machinery Research Institute; There is the world's largest rear wheel drive rigid mining truck, which can carry up to 400 tons at a time... In the field of construction machinery, China's "major heavy machinery" is constantly moving towards the mid to high end. Behind the enhancement of product strength is the continuous improvement of technological content. Yang Dongsheng, Chairman of XCMG Group, stated that the "engine" driving XCMG Group's growth is core technology and product innovation. XCMG Group invests over 5% of its annual revenue in technology research and development, establishing an integrated R&D system from complete machines to core components, ensuring that its technology is in a leading position in the industry. The first industrial grade offshore wind power hydrogen production project in Asia was put into operation recently. The Guishan offshore wind power industrial grade hydrogen production demonstration project in Wanshan District, Zhuhai City, Guangdong Province successfully produced hydrogen, marking the successful completion of Asia's first industrial grade offshore wind power hydrogen production demonstration project. This project is jointly completed by multiple units such as Southern Offshore Wind Power Joint Development Co., Ltd. and Tsinghua University Shenzhen International Graduate School. Based on the Guishan offshore wind power No. 31 wind turbine platform, the project has installed seawater desalination and machinery
Edit:Chen Jie Responsible editor:Li Ling
Source:People's Daily
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