【Ten Years of Rapid Development in Chemical Engineering Equipment】China’s First Megawatt-Class Supercritical Carbon Dioxide Turbine Generator Set from 1091 to 2020
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This post was last edited by Desert Fish on 2023-8-4 at 08:54. Ten years of remarkable progress in chemical technology – let’s celebrate the prosperity and strength of modern China. This is just a starting point; more participation from everyone will make things even more lively. Haichuan becomes even better with your involvement; we welcome everyone to join in the discussions on this forum. The fragrance of rice in August ------------------------------------------- In April 2020, China’s first 6-megawatt supercritical carbon dioxide turbine generator set, developed independently by Chongqing Jiangzeng Shipbuilding Heavy Industry Co., Ltd., which is part of the China State Shipbuilding Corporation, completed its mechanical operation tests. The unit performed well, meeting all design requirements, and was successfully delivered to the customer, marking the successful application of Jiangzeng Shipbuilding’s core technologies in yet another new field. As the only manufacturer in China to have secured commercial contracts to date, Jiangzeng Heavy Industry has independently developed China’s first 6-megawatt-class high-power, high-efficiency supercritical carbon dioxide turbine compression generator set. This unit features an inlet pressure of over 20 MPa and a temperature of up to 600°C, with comprehensive performance that is at the international leading level. In recent years, Jiangzeng Heavy Industry has taken its \"Enterprise Technology Center\" as a driving force, focusing on industries such as power machinery and environmental protection and energy conservation. With turbocharger technology at its core, it has successfully developed two major product lines: compressors and turbines, achieving a qualitative leap in its technological innovation capabilities. The unit was entirely designed and developed by the Jiangzeng Heavy Industry Technology Center, with its wholly-owned subsidiary Kunshan Jiangjin Machinery responsible for its manufacture. During the design and manufacturing process of this product, a dedicated R&D team overcame the challenges posed by the distance between Chongqing and Jiangsu, working together efficiently and in close cooperation to develop detailed plans and implementation strategies. From the creation of process documents, the procurement of raw materials for casting and forging, to part processing, assembly, and testing, they ensured \"meticulous organization, thorough planning, strong management, and strict implementation\". Given the material’s special properties, the complexity of the structure, and the high precision requirements regarding dimensions, the process plan includes a first-piece processing verification, with technicians monitoring the entire process to ensure zero risks in part manufacturing. During the critical phase of concluding the project, the COVID-19 pandemic broke out, resulting in tight deadlines and heavy workload. All employees of the contractor worked tirelessly without stopping to meet these challenges, and they successfully completed the final stages of the project.
For generator sets that use such work-repeating working fluids, the weight per unit of power can be significantly reduced. Give a thumbs up to China’s independent research and development and manufacturing
The generator set developed independently this time has a system thermal efficiency of over 50%, which will effectively improve power generation efficiency, shorten the construction period of power plants, and significantly reduce costs. It is also suitable for arid areas with water shortages, offering broad application prospects. Supercritical carbon dioxide power generation technology utilizes the supercritical carbon dioxide Brayton cycle; it is a thermal cycle technology for turbine engines that employs supercritical carbon dioxide as the working fluid, enabling high thermoelectric conversion efficiencies and outperforming traditional steam turbines. Currently, this technology is becoming a hot topic of research in the global power generation sector, and the turbine compressor is one of the key components of supercritical carbon dioxide Brayton cycle systems. For concentrated solar power systems, achieving higher operating temperatures is becoming key to further improving system efficiency and reducing costs. The ongoing advancements in supercritical carbon dioxide-based concentrated solar power technology, which are currently of great interest to the global concentrated solar power industry, hold significant potential to help overcome cost barriers in this sector. Research shows that improving the thermal efficiency of the power cycle is key to reducing the levelized cost of energy (LCOE) of photothermal power generation systems. The thermal efficiency of conventional photovoltaic power generation systems is generally between 35% and 40%, whereas photovoltaic power generation systems equipped with a supercritical carbon dioxide (sCO2) power cycle can achieve thermal efficiencies of 50% or even higher.
【Ten Years of Great Progress in Chemical Engineering Technology】The project aimed at achieving domestic production of electric double-eccentric C-type ball valves was launched between 2016 and 2023. https://bbs.hcbbs.com/thread-4574658-1-1.html (Source: Haichuan Chemical Industry Forum Website)