Sany Heavy Industry: Dome of Nuclear Power Plant! Hoisting is successful!

September twenty fifth，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. SanySCC20000ACrawler Crane undertakes the main lifting task。

The dome of Unit 2 of the nuclear power plant is a hyperboloid hemisphere welded by 70 prefabricated modules.，The dome weighs 225.8 tons，Equivalent to about 150 Vehicles1.A five-ton car；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。

Day 17:15，As soon as the commander in chief gave the order，TrinitySCC20000ACrawler Crane slowly lifts 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,，The dome sits smoothly on the containment steel liner，The whole process lasted nearly two hours.。

There are two major 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.。

Project team requirements，Deformation must be prevented during the whole hoisting process.、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，Lifting technicians have carried out many times on the dome lifting process.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。

A total of 6 units are planned for the Taipingling Nuclear Power Project of CGN.“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。

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