The Bearing Research Institute successfully matched Zoomlion's 3200-ton crawler crane to help China Nuclear Power Zhangzhou Nuclear Power "Hualong One" successfully complete the hoisting
On August 24, 2021, China National Nuclear Machinery Engineering successfully completed the overall hoisting work of the ring suspension bridge for Unit 1 of the Zhangzhou Nuclear Power "Hualong No. 1" Unit. The hoisting was completed using Zoomlion's ZCC3200NP 3200-ton crawler crane.
As the main brand of China ’ s nuclear power “ going out ”, Hualong No. 1 has reached the advanced level of the international three-generation nuclear power technology in terms of safety indicators and technical performance. It has complete independent intellectual property rights and fills the technical gap in China in a short time. In China, the installation of various components of nuclear power plant ring crane mostly adopts the process of ground assembly, data measurement and disassembly, and then segmented hoisting to the target position and then segmented installation. Although this set of construction technology is very mature, it has the disadvantages of more aerial work and higher construction difficulty. This time, the overall hoisting of the "big guy" with a length of 45.5 meters, a width of 15.2 meters, and a height of 8.37 meters, with a net weight of about 418 tons-the ring suspension bridge of Zhangzhou Nuclear Power Unit 1 is still a domestic "first".
This hoisting is the first integral hoisting of nuclear power ring crane bridge in China, and it is also the first show of 3200 tons crawler crane in China Unicom. At the same time, it opened the main equipment hoisting journey of Zhangzhou nuclear power ' Hualong No. 1 '.
Luoyang Bearing Research Institute Co., Ltd. (hereinafter referred to as the Shaft Research Institute) undertook the technical research, development and manufacturing of the ZCC3200NP 3200-ton crawler crane special slewing bearing used in this lifting task. The slewing bearing, as the core component of the crawler crane connecting the frame and the turntable, plays a key role in "connecting the upper and lower parts". Overweight, precision, and safety are the "duties" of slewing bearings in crawler cranes. The slewing bearing in the crawler crane bears huge axial force, radial force and overturning moment at the same time. Under severe operating conditions, the slewing bearing has extremely high requirements. Through the unremitting efforts of the Heavy Bearing Division of the Shaft Research Institute, a series of technical barriers were overcome, and the products were finally successfully delivered and used.
The Bearing Research Institute will continue to use its technological and scientific research advantages to help the development of the national industry, vigorously promote the technological progress and transformation and upgrading of the industry, and contribute its due strength to the country's transformation from a "manufacturing power" to a "manufacturing power"!
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