Recently，Sponsored by the Information Center of SASAC of the State Council，People's Daily New Media Center、New Media Center of Xinhua News Agency、China News Network、People's Network, People's Video and other mainstream media cooperation“Our ten years.@Coordinates China”Online theme publicityStart up，To be constantly refreshed.China span、Chinese precision、Height of China、Depth of China、China's strength、Chinese speedFor longitude and latitude，Focus on the major achievements of representative infrastructure construction and scientific and technological innovation since the 18th National Congress of the Communist Party of China，Show the Chinese builders to overcome difficulties、The courage to challenge the limit、Boldness and wisdom。

October sixth，“Coordinates China”The 24th issue of the series of theme films was launched“China's strength”Of《Pull out the dome》，Focus onThe first one in China“Two in one”Crawler crane——TrinitySCC52000TMCrawler crane，Thumbs up for the great power，Applaud the great power to promote the development of the new era。

SCC52000TMIt is jointly developed by China Nengjian Guangdong Thermal Power and Sany Group.，The first one in China was successfully launched on April 28, 2022.“Two in one”3000t crawler crane。September 25, 2022，The crane completed the Taipingling nuclear power project in Guangdong.“Hualong One”Millimeter-level precise hoisting of 225-ton dome of nuclear power unit，For“The most important weapon of the country”Contribute to the power of hard-core heavy industry。How to realize the hoisting of nuclear power dome？Hoisting with great strength“Big Mac”How to transform and fit？Let's see↓

 

Large wind turbine blades weighing more than ten tons

Standing tall，Dance with the wind

Tens of tons of shield machine cutterhead

Dig the underground city

Witness“Infrastructure maniac”The vigorous power of

Hundreds of tons of nuclear power dome

A huge umbrella open.“Protective cover”

Protect the safety of nuclear power......

 

These are related to the national economy and the people's livelihood.

“Big Mac”Behind the smooth hoisting

All hiding one.“Super equipment”

Extra large tonnage crane

PART1

How heavy is the power of a thousand Jun?？

This 3000-ton crawler crane

Upgrade from 1600 tons to 2000 tons

Together with another 2,000-ton crawler crane

“Two in one”Modification“Fit”And become

The maximum lifting capacity is 3000 tons.

The longest jib of the crane is 216 meters.

（The main boom is 108 meters+Jib 108m）

It is equivalent to the height of about 7 water cubes.

Track frame length 17m，The equivalent of a six-storey building

Spread your arms and cover an area of 1600 square meters.

The size of five basketball courts.

 

What is the concept of lifting 3000 tons at a time?？

3000 tons equals 6 million Jin.

Equivalent to 2000 vehicles, about 1.A five-ton car

Behind the lifting of a thousand tons

It must have great power.

3000t crawler crane

It is well deserved“Big Mac”

PART2

How to achieve

100-ton nuclear power domeMillimeter-level precision hoisting？

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

September 25, 2022

After 3000-ton crawler crane is disassembled

One of the 2,000-ton crawler cranes was completed

Guangdong-Hong Kong-Macao Greater Bay Area

“Hualong One”Generation III nuclear power plant

——CGN Taipingling Nuclear Power Project

Lifting of the dome in the containment of Unit 2

 

The dome weighs 225.8 tons

It's a 45-meter diameter.、High 13.7 m hyperboloid hemisphere

The area is equivalent to 4 basketball courts

To put this one.“Big guy”After being hoisted to a height of 70 meters,

The smooth control falls on the nuclear island cylinder about 45 meters high.

And the deviation should be controlled at the millimeter level.

At the same time, the deflection under the influence of wind should also be considered.

Thermal expansion and contraction under temperature change

This is a big challenge.

 

In order to ensure the safety of dome hoisting

Hoisting technicians have carried out the hoisting process many times.

BIMSimulation calculation of intelligent nuclear power construction technology

At the same time, closely monitor the weather conditions before hoisting.

Conduct a simulation exercise、Emergency drill、Trial lifting of dome, etc

During the 2-hour hoisting process,

The accuracy is controlled at millimeter level.

PART3

“Iron and steel”How do twin stars transform and merge?？

This steel-cast hoist.“Big Mac”

“Fit”The process is not complicated.

Just get on the car and add two beams.、Longitudinal beam

Main stressed parts such as front platform shall be added after getting off the train.

And then through modular assembly

The masts of the two crane trucks are、Main boom and auxiliary boom

“Combine two into one”Make up a whole

It's a success“Fit”Here we go

One crane truck is used as the main engine.

The other crane truck provides power source.

One driver can control it.

  

Even more subtly,

It can be on the order of 3000 tons.“Come out”

Yes, too“Transformation”Disassembled into 2 cranes operating independently

Some typical operating conditions

It even reaches 1.+1＞The effect of 2

 

In addition

It also carriesOmnidirectional visual intelligent operation

And intelligent fault diagnosis system

Configure wireless remote control at the same time

Walk、Promote、Rotation, etc

A series of high-precision actions

Can be achieved by wireless remote control.

Really let“Big guy”Have“Great wisdom”

China Super Heavy Crawler Crane

From scratch、From small to large

The course from complete import to world leading

Fully demonstrated

“Made in China”Hard core strength

It is also the epitome of China's rapid development.