The third-generation nuclear power AP1000 shielded motor main pump engineering and durability test succeeded
According to the latest news from the National Nuclear Power Technology Corporation, the biggest problem that has plagued the world's first generation of three-generation nuclear power, and the delay in the construction period, is the AP1000 shielded motor main pump, which was completed and witnessed by the National Nuclear Safety Administration of China. It is also the last time) the engineering durability test, which will be shipped from the United States to China to rely on the project site. The AP1000 main pump is a world-class vertical, single-pole, centrifugal, and integral enclosed shielded motor pump. It is one of the most important core equipments of the AP1000 nuclear power unit. To ensure safe and reliable operation for its 60-year life, AP1000 original company Westinghouse and main pump manufacturer EMD have developed extremely stringent design standards and test verification standards – whether in the design of the main pump, component materials or In terms of manufacturing precision and production process, it has broken through the common standards of the past, put forward the requirements of the highest standards, and required to meet various harsh thermal transient tests including water loss test, which is the best in the world. The third test data and the subsequent disassembly test results show that the electrical, hydraulic and idling performance of the main pump meet the requirements of the specification. The surface condition of the thrust bearing is in line with expectations, and the pre-tightening force of the fastener is kept good. Westinghouse and EMD confirmed that the design modifications to the AP1000 main pump were effective and the performance met the design requirements. The same main pump will be used in China's supporting projects, Zhejiang Sanmen and Shandong Haiyang, and will also be used for four AP1000 units under construction in the US VC Summer and Vogtle. The former is the first AP1000 unit built in the world. The original unit is planned to be connected to the grid in August 2013 and February 2014 respectively. National Nuclear Technology said that the main pump design and manufacturing technology is one of the main contents of the US EMD company's AP1000 technology transfer. At present, the domestic Drum and Harbin Electric have mastered the main pump manufacturing technology through the digestion and absorption technology transfer file, software and subcontract manufacturing practice, and can be used for the subsequent AP1000 project. ZHEJIANG HESHUO TECHNOLOGY CO.,LTD , https://www.hosuocn.com