Core Insights - China Energy Construction has developed the world's largest artificial cavern gas storage in-situ testing platform, achieving a breakthrough with a maximum pressure level of 18 MPa, setting five world records in cavern scale, pressure, pressure difference, gas loss rate, and stability [1][3] - The platform, located in Wangcheng, Hunan, is the most advanced of its kind globally, featuring two ultra-large test caverns with a maximum depth of 110 meters and a design pressure of 20 MPa, showcasing unique dual cavern synchronous high-pressure testing capabilities [1][3] Technological Advancements - The platform's development involved collaboration with Changjiang Design Group and Wanhua Energy Saving Group, resulting in eight pioneering achievements, including a composite sealing system and theories for surrounding rock load-bearing and temperature field data acquisition, all with 100% independent intellectual property rights [1][3] - This breakthrough enhances China's artificial cavern gas storage technology route, accelerating the scale and industrialization of compressed gas energy storage [3] Industry Implications - The new technology introduces a "four high integration" paradigm for deep underground resource utilization, characterized by high economic efficiency, high reliability, high construction efficiency, and high operational controllability [3] - The technology has potential applications in the storage of strategic materials such as hydrogen, natural gas, ammonia, and oil, supporting the integrated development of energy systems and highlighting China Energy Construction's role in leading energy technology transformation and ensuring national energy security [3]

记者8月18日从中国能建集团所属中国能建数科集团获悉，世界最大人工硐室储气原位试验平台开展的 储气密封循环试验日前在湖南省长沙市取得成功。这标志着我国全面掌握了人工硐室储气领域相关技 术，将加速推动压缩空气储能行业规模化、产业化发展。此次试验压力突破人工硐室储气库最高压力等 级18兆帕。通过高低压循环、长时保压"双168小时"连续运行验证，储气库密封性、稳定性等各项性能 指标均达到国际一流水平，创下超高压力、超严密封、超高可靠、超全感知、超高效率五项世界纪录。 （科技日报） ...