Over 6.14 billion cubic meters imported into Shandong! Accumulated pumping of over 40 billion cubic meters of river water! After passing through the "source" stone tablet at the entrance, four electric pumping stations will come into people's eyes. These four electric pumping stations are connected to four small green islands, lined up in a picturesque landscape with surging power. This is the Jiangdu Water Conservancy Hub, the largest power drainage and irrigation project in China, the largest pumping station hub in Asia, and the starting point of the East Line of the South to North Water Diversion Project. This year marks the tenth anniversary of the official opening of the East Line of the South to North Water Diversion Project. Recently, a reporter from Science and Technology Daily visited the 1467 kilometer long East Line Phase I of the South to North Water Diversion Project with an interview organized by China South to North Water Diversion Group. The first phase of the East Line of the South to North Water Diversion Project has preliminarily constructed the main framework and artery of the eastern national water network. In the past 10 years, the guarantee rate of domestic and industrial water supply in cities within the water receiving area of the project has increased from less than 80% to over 97%. The upgraded 'South Water' has become the 'source of life' for ensuring water supply safety, improving river and lake ecology, and promoting economic circulation in eastern China Wei Junguo, Deputy Chief Engineer of China South to North Water Diversion Group East Line Co., Ltd. Cascade pump stations deliver "Nanshui", "Li Bing Dujiangyan Irrigation Project in ancient times, and Renmin Jiangdu Station today". The Jiangdu Water Conservancy Hub is the first water diversion cascade on the East Line, with four large pumping stations and 33 water pumps, with a designed flow rate of 400 cubic meters per second. The pumping capacity in one hour can irrigate 40000 acres of fertile land. The reporter saw in front of the digital sand table at the Jiangdu Water Conservancy Hub Exhibition Hall that the Yangtze River water starts from Yangzhou and is lifted northward through a double line river channel. After passing through a 13 stage pumping station, it is like climbing 13 consecutive steps to connect Hongze Lake, Luoma Lake, Nansi Lake, and Dongping Lake. The difference between the water level of Dongping Lake at the highest point on the east line and the terrain of the Yangtze River is nearly 40 meters, making it a reality that "water flows upwards". The key to turning the river upstream and crossing a 40 meter elevation lies in the pumping station group that raises the water level. When the reporter walked into the pump room of the fourth pumping station, 7 pumps were running and emitting bursts of roar. Sun Tao, Director of the Dispatching and Operation Department of Jiangsu Water Source Co., Ltd. (hereinafter referred to as "Jiangsu Water Source") on the East Route of the South to North Water Diversion Project, introduced that in the East Route of the South to North Water Diversion Project, 22 large pumping stations were newly built and renovated, forming 13 cascade water transfer hubs, making it the largest pumping station group in the world. The difficulty of building this super large pumping station group can be imagined. Liu Jun, former deputy general manager of Jiangsu Water Source, took Baoying Station as an example to introduce that the blade adjustment mechanism is a key component for adjusting the operating conditions of water pumps and implementing optimized operation. In China, hydraulic pressure is mostly used, which drives the piston up and down with pressure oil to adjust the blade angle. But this will bring about oil seepage problems and easily pollute the lake water, and the South to North Water Diversion is mainly for supplying domestic water, which must be addressed. The team ultimately developed an environmentally friendly regulation system with strong adaptability and oil leakage prevention, achieving the localization of a new regulation structure. It is precisely in this way that "station by station" and "station by station" have formed 11 sets of schemes for the Jiangsu section of the East Line of the South to North Water Diversion Project. After rigorous comparison and selection of pump station technical schemes, equipment investment has been saved by more than 90 million yuan, and pump station efficiency has generally increased to over 70%. Digital twins enhance efficiency in the centralized control center of the Jiangsu section of the East Line of the South to North Water Diversion Project. With one click of the mouse, it only takes 5 seconds