On the 25th, a narrow gap automatic welding process with international leading level was officially applied in the main pipeline welding of Unit 1 of Ningde Nuclear Power Plant in Fujian. This is the first time that automatic welding technology has been adopted in the construction of nuclear power plants in China.
According to Mr. Shu Guogang, the general manager of China Guangdong Nuclear Power Engineering Co., Ltd., which is responsible for the construction of Ningde Nuclear Power Plant, this technology is supported by a project team consisting of China National Nuclear Power Engineering Co., Ltd., China Nuclear Power Research and Design Institute, China National Nuclear Construction Corporation and other major nuclear power equipment manufacturing units. Development, with completely independent intellectual property rights, broke the monopoly advantage of Western developed countries in this technology field.
Shu Guogang said that compared with the traditional welding process, the narrow gap automatic welding technology will play an important role in improving the welding quality of the main circuit pipeline of the nuclear power plant, optimizing the welding period and compressing the construction cost of the nuclear power plant. After adopting the automatic welding process, the critical path period of nuclear island installation can be shortened by 30 to 45 days, which can bring a single unit to operate in advance in advance, achieving an economic value of 200 million yuan for a single unit.
China Guangdong Nuclear Power Engineering Co., Ltd. is a specialized nuclear power construction management company under the China Guangdong Nuclear Power Group. At present, it is carrying out the construction of a total of 16 million-megawatt nuclear power units in China's six major nuclear power projects, including Ningde Nuclear Power Plant. It is the largest nuclear power generating unit in the world. Business. Shu Guogang believes that the application of automatic welding technology in Ningde nuclear power construction indicates that the CPR1000 project, which accounts for more than half of China's nuclear power plants under construction, will fully enter the era of automatic welding of main pipelines.
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