Sany Heavy Industry: SCC20000A Makes New Achievements! Helping CGN Taipingling Nuclear Power Station Unit 2 Dome Hoisting in Place

September 25th at 19:00，China's first eco-nuclear power demonstration project——CGN Taipingling Nuclear Power Project Unit 2 Containment Dome Lifting Operation Successfully Completed，China Nengjian Guangdong Thermal Power Co. Ltd.SCC20000ACrawler Crane undertakes the main lifting task。

Dome is an important barrier for the safety of nuclear power plant.，Is to ensure the integrity and tightness of the reactor building、An important part of achieving inherent safety。The successful hoisting marks that the unit has been fully transferred from the civil construction stage to the equipment installation stage.，To lay a solid foundation for further high-quality and steady promotion of engineering construction。

This construction，SCC20000AAdoptLJDB(Luffing auxiliary boom belt super-lift)Working condition。Day 17:15，With the order of the general commander of the project hoisting，SCC20000ASlowly lift the dome off the ground.，Through luffing、Promote、A series of high-precision actions such as clockwise rotation of the boom，Precisely delivered to the top of the reactor building of Unit 2，Followed by a slow decline，After the adjustment is correct,，Steadily drop the hook into position on the containment steel lining，The whole process lasted nearly two hours.。

It is understood that，The inner dome of Unit 2 is a hyperboloid hemisphere consisting of 70 prefabricated modules welded together，DomeWeight 225.8 tons，Equivalent to about 150 Vehicles1.An ordinary car weighing 5 tons；High 13.6 meters，The diameter of the lower mouth is 45 meters.，The area is about 1600 square meters.，Equivalent to the size of about 4 standard basketball courts。

There are two main difficulties in this hoisting.：First, the dome is a thin-walled structure with a thickness of 6 mm.，It is extremely difficult to control the deformation；Second, the windward side of the dome is large.，Gale、Wind gust will bring the risk of lifting operation.。SoThe whole process must prevent deformation.、Anti-collision、Wind-proof，More importantly, the hoisting accuracy should be controlled at the millimeter level.。

In order to ensure the successful completion of hoisting，The hoisting technicians of the project department have carried out the dome hoisting process many times.BIMSimulation calculation，At the same time, closely monitor the weather conditions before hoisting.、Organize all members to conduct several simulation exercises of empty hook for dome hoisting、Emergency drill、Trial lifting of dome, etc，Full coverage of hoisting links has been achieved.，Make sure the dome is precisely in place.，Successful hoisting at one time。

CGN Taipingling Nuclear Power Project is planned to build 6 sets.“Hualong One”Nuclear Power Unit，After the completion of the project，Annual power generation can reach 50 billion kilowatt-hours.，The annual consumption of standard coal can be reduced by 15.12 million tons.，Reduce carbon dioxide emissions by 41.6 million tons，Equivalent to afforestation 11.30,000 hectares。

In the country“3060”The carbon reaches the peak、Guided by the goal of carbon neutrality，Taipingling nuclear power will provide continuous clean energy for the sustainable economic development of Guangdong-Hong Kong-Macao Greater Bay Area.，Make greater contributions to building a beautiful China。

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