On the morning of May 19th，In ZoomlionZCCUnder the precise and stable exertion of 32000 crawler crane，Jiangsu Tianwan Nuclear Power Unit 7 Dome Ball Belt Completed Hoisting Operation。The successful hoisting of the dome ball belt marks that the unit has been fully transferred from the peak of civil construction to the installation stage.。

Tianwan Nuclear Power Station is located in Lianyungang, Jiangsu Province.，It is the nuclear power base with the largest total installed capacity in the world.。May 19，Tianwan Nuclear Power Station ushered in the nodal hoisting task.——Lifting operation of dome ball belt。

Tianwan Nuclear Power 7、The nuclear reactor building of Unit 8 is a double-shell structure.，The dome hoisting is divided into two parts: the spherical belt and the spherical crown.。The ball belt to be hoisted this time is a ring belt type structure.，Upper opening diameter 36.522 meters，The diameter of the lower mouth is 44 meters.，Height 12.269 meters，Installation equipment of different specifications are distributed in the ball zone.，Includes 16 dome passive heat exchanger、44 penetrations、4 sets of hydrogen recombiner and other equipment。

On the day of hoisting，Tianwan Nuclear Power Site Command，ZoomlionZCC32000 the crawler crane and slowly move the weight 375.The 5-ton dome ball belt is lifted off the ground.。Through the hook、Rotation、Walk with load、A series of high-precision actions such as adjustment，The dome ball belt is slowly and stably hooked on the steel lining cylinder of the containment shell.，The whole process is safe、Orderly、Controllable，The hoisting accuracy shall be controlled at millimeter level.。

It is reported that，Daitianwan Nuclear Power Plant 7、After the No.8 unit is fully assembled，The total installed capacity of Tianwan Nuclear Power Base exceeds 9 million kilowatts.，It can provide more than 70 billion kilowatt-hours of clean electricity annually.，It is equivalent to reducing carbon dioxide emissions by 15.34 million tons per year.。To build a clean and low-carbon、Safe and efficient modern energy system，Promoting green and low-carbon development，Achieve carbon peak、The strategic goal of carbon neutrality plays an important role.。