A piece of good news from Fuqing, Fujian Province, has inspired the “Hunan army of construction machinery” to work hard. What kind of good news is this? Why can the good news thousands of miles away make the Hunan army so excited? The reporter learned more in Zoomlion Heavy Industry Science And Technology Co.Ltd(000157) today.
3200t crawler crane becomes the best partner of nuclear power construction project
This is indeed a piece of news that makes Chinese people proud! At the end of March, the second unit of China’s independent third-generation nuclear power Hualong No. 1 demonstration project – No. 6 unit of Fuqing nuclear power of China Nuclear Power Group officially met the commercial operation conditions. This indicates that the hualong-1 demonstration project has been fully completed and put into operation, and also indicates that China National Nuclear Power Co.Ltd(601985) technical level and comprehensive strength rank first in the world. The definition of industry experts is that the project is a “national card” for China National Nuclear Power Co.Ltd(601985) to go to the world, supporting China’s leap from a nuclear power country to a nuclear power country.
In Zoomlion Heavy Industry Science And Technology Co.Ltd(000157) , “Hualong 1” is a familiar project name. The relationship between the two sides should start with the amazing hanging on May 25, 2017.
On that day, after two years of construction, Hualong No. 1 Fuqing nuclear power unit 5 ushered in the key construction link – dome hoisting.
The dome is a part of the reactor building and an important component related to nuclear safety. Therefore, dome hoisting has high requirements for technical requirements, design and construction.
Hualong No. 1 dome is a hemisphere with a diameter of 46.8 meters. Its bottom is the size of two basketball courts and its height is 23.4 meters. The total weight of the dome and supporting ropes exceeds 500 tons, but the drop between the bottom and the highest and lowest points from the ground is required to be less than 200 mm. The lifting dome can be regarded as the operation with the largest lifting weight and the highest height in the global nuclear power construction at that time, and the construction difficulty can be imagined.
The project party looked for the best partner among the global construction machinery brands, and the Zoomlion Heavy Industry Science And Technology Co.Ltd(000157) super large tonnage crawler crane zcc3200np, which was offline in 2011, was successfully selected. This product is the first 3000 ton super large crawler crane built by Zoomlion Heavy Industry Science And Technology Co.Ltd(000157) to ensure the safety of China’s energy construction, with a maximum lifting torque of 82000 ton meters. So far, it is still one of the super large tonnage crawler cranes with the strongest lifting performance and the most advanced technical level in the world.
On the day of hoisting, this “national heavy weapon” made in Changsha showed the strength of “a tiger in the heart and a rose in the nose”: the huge crawler crane and hundreds of embedded sensors were installed to realize the perceptibility of pressure, load and speed, automatically adjust the operation parameters, control the hoisting accuracy within 2mm, and successfully landed the dome on the top of the 45 meter high nuclear reactor, Assist unit 5 to fully transfer from civil construction stage to equipment installation stage.
The hoisting dome became famous in World War I. The 3200 ton crawler crane has become the best partner for many important nuclear power construction projects in China.
In 2021, China National Nuclear Power Co.Ltd(601985) entered a new stage of development. In July of that year, the world’s first onshore commercial modular small pressurized water reactor “Linglong 1” was started in Changjiang, Hainan. Seven months later, the project reached the construction node. After 2 hours and 16 minutes of operation, the Zoomlion Heavy Industry Science And Technology Co.Ltd(000157) 3200 ton crawler crane successfully put the lower cylinder of the world’s first steel containment of “Linglong 1” in place against the morning light of Qiongdao, and completed the milestone plan 46 days in advance.
During the construction of “national business cards” projects, Zoomlion Heavy Industry Science And Technology Co.Ltd(000157) continuously optimized the performance of products, made technological innovation and breakthroughs, and developed an upgraded version of the new 2000 ton crawler crane zcc32000.
On March 29, the zcc32000 crawler crane took 2 hours to complete a series of hoisting steps such as hook lifting, luffing, slewing, walking and hook dropping at one go, and successfully hoisted the containment steel lining module IV of unit 3 of Hainan Changjiang nuclear power phase II, laying a solid foundation for the dome hoisting construction in the last level-1 milestone node in the civil construction stage of unit 3.
In the context of the “double carbon” goal, nuclear power has become an important option for energy transformation. The action plan for reaching the peak of carbon by 2030 clearly requires that the layout and development timing of nuclear power plants should be reasonably determined, nuclear power should be developed in an orderly manner on the premise of ensuring safety, and the pace of construction should be kept stable. Industry experts predict that with the development of nuclear power, the construction of nuclear power plants will fully release the market of corresponding engineering equipment. How can it not be exciting news for the Hunan army of engineering machinery, which has successfully played a role in the construction of many “national business card” projects?
