【Ten Years of Rapid Development in Chemical Engineering Equipment】The medium-pressure module of the world’s largest compressed air energy storage turbine was successfully installed between 2025 and 2855

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This post was last edited by HaiChuan LaoYu on 2025-11-28 at 20:02. Let’s give praise and support to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************[Ten Years of Progress in Chemical Engineering Equipment] A continuously updated summary thread – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** The medium-pressure module of the world’s largest compressed air energy storage turbine has been successfully installed, marking a new stage in Huaneng’s energy storage project. On November 27th, the medium-pressure module of the world’s largest compressed air energy storage turbine expansion machine was successfully installed at Huaneng Jintan’s 2×350-megawatt salt cavern compressed air energy storage power generation project. With this installation, the entire turbine expansion machine is now ready for the main equipment installation phase. This successfully installed medium-pressure module was developed jointly by Huaneng Jiangsu Company and Dongfang Steam Turbine Company; it is the core component of the turbine expansion machine, measuring approximately 6 meters in length, 5 meters in width, and 5 meters in height, with a weight of 190 tons. It represents the largest turbine expansion machine module ever installed in China. An innovative “segmented lifting” method was used for its installation, ensuring that the whole process was safe, orderly, and under control. The air turbine expansion machine serves as the “heart” of compressed air energy storage power stations, with its primary function being to convert the internal energy of high-pressure air stored in salt caverns deep underground into electrical energy efficiently. Compared to traditional compressed air energy storage systems, the power of each unit in this system has increased to 350 megawatts (which means it can generate 350,000 units of electrical energy per hour). The key innovation lies in the technology of multiple reheatings and rapid, frequent start-up and shutdown of multi-cylinder expansion engines, enabling a response time on the order of minutes and thus allowing flexible adaptation to the grid’s demand for peak power regulation. Next, Huaneng Jiangsu Company will accelerate the construction of the Jintan 2×350 megawatt salt cavern compressed air energy storage project, striving to establish a storage facility with a capacity of one million kilowatts. This facility will serve as a comprehensive demonstration platform that integrates various advanced energy storage technologies, providing solid support for the high-quality development of the energy sector. Background information: The second phase of the Huaneng Jintan salt cavern compressed air energy storage power generation project officially commenced on December 18, 2024. Two 350 megawatt non-reburning compressed air energy storage units are planned to be built, with a total volume of 1.2 million cubic meters – equivalent to the size of 640 standard swimming pools. It is expected that these units will undergo 330 charge/discharge cycles per year. Upon completion, this project will become the compressed air energy storage power station in the world with the highest single-unit power output, the largest total capacity, and the highest overall efficiency. One charge can store 2.8 million kWh of energy, sufficient to meet the charging needs of 100,000 new energy vehicles. This setup can save 270,000 tons of standard coal per year and reduce carbon dioxide emissions by 520,000 tons.