The vacuum liquid argon storage tank at the air separation unit of Rongsheng New Materials project has been successfully installed in place

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On November 16, with the final set of fixing bolts tightened precisely, the last vacuum liquid argon storage tank at the air separation unit of Rongsheng New Materials Project in the Southwest Branch was successfully installed. This marked the completion of the construction of the core storage system for the air separation unit, laying a solid foundation for the subsequent joint testing and operational deployment of the entire facility. The left image shows the liquid nitrogen vacuum storage tank, while the right image shows the liquid argon vacuum storage tank. The core storage system of this air separation plant includes 2 liquid argon vacuum storage tanks, 5 liquid nitrogen vacuum storage tanks, 1 liquid oxygen vacuum storage tank, 1 liquid oxygen flat-bottomed storage tank, and 1 liquid nitrogen flat-bottomed storage tank. The two liquid nitrogen vacuum storage tanks being lifted this time weigh 170 tons each and are 37.5 meters tall ； The two vacuum liquid argon storage tanks, each weighing 178 tons and standing 32.3 meters tall, serve as the core equipment for low-temperature storage. Both are equipped with a double-layer vacuum insulation structure, which enables long-term stable storage of liquid nitrogen and liquid argon at -196°C. For this lifting operation, an 800-ton crawler crane is used as the main lifting device, while a 280-ton crawler crane is used to assist with the delivery process. As an indispensable \"gas supply hub\" in petrochemical systems, the air separation unit serves to provide the production processes with high-purity gases such as oxygen and nitrogen in a continuous and stable manner. Its core function is crucial, as it directly determines the feasibility, safety, and economic efficiency of subsequent production processes. Once the air separation unit of the Rongsheng New Materials project is completed, it will provide reliable gas supply for the main equipment of the project, helping to improve product quality and production efficiency. It holds great significance for helping the entire project achieve its goals of green and intelligent production.