The main construction of Unit 4 of Zhejiang Sanao Nuclear Power Project starts

China News Service, Wenzhou, November 10 (Fu Feiyang, Chi Tingting) On November 10, the concrete pouring (FCD) of the first tank of the nuclear island of Unit 4 of CGN's Zhejiang San'ao Nuclear Power Project started, marking the official start of the main project of the unit and the second phase of the project entering the comprehensive construction stage.

On November 10, the main construction of Unit 4 of Zhejiang Sanao Nuclear Power Project started. Photo by Guo Lei

The Sanao Nuclear Power Project is located in Wenzhou City, Zhejiang Province. It is the first "Hualong One" project in the Yangtze River Delta region and the first nuclear power project in China to introduce private capital participation. Unit 4, which started construction this time, belongs to the second phase of the San'ao Nuclear Power Project. It adopts China's "Hualong One" third-generation nuclear power technology with completely independent intellectual property rights. After completion, the annual power generation is expected to reach 9 billion kilowatt hours, which can meet the annual production and living electricity needs of about 1 million people.

One of the innovative highlights of this construction is the large-scale application of intelligent equipment. In view of the large processing volume of nuclear island structural parts and the difficulty in controlling the accuracy of manual processing, the project team built an automated production line for steel bars and embedded parts, and invested in intelligent equipment such as embedded parts welding robots, saddle bar welding robots, and anchor block automatic installation platforms to replace traditional manual operations with automated processing and assembly, effectively improving component processing quality and production efficiency.

The Sanao Nuclear Power Project plans to build 6 "Hualong One" units, which will be constructed in three phases. Currently, 4 units have been approved. Among them, Unit 1 has been officially put into power generation, Unit 2 has completed its first nuclear fuel loading, and Unit 3 is undergoing construction of the main structure of the factory surrounding the nuclear island. The overall construction is progressing steadily as planned.

After all six units are completed, the annual power generation capacity is expected to exceed 54 billion kilowatt-hours, which is close to 80% of the current total annual electricity consumption of Wenzhou City. It can equivalently reduce the consumption of standard coal by more than 16.35 million tons and reduce carbon dioxide emissions by nearly 50 million tons per year. As an important clean energy base in the southern wing of the Yangtze River Delta, the Sanao Nuclear Power Project will provide a solid guarantee for the green and low-carbon transformation of the Yangtze River Delta and the high-quality development of the computing power hub and smart economy. (over)