State-owned Assets Supervision and Administration Commission praise! Sany equipment "pulls out the dome"!

Recently, sponsored by the News Center of the State-owned Assets Supervision and Administration Commission of the State Council, and cooperated by the People's Daily New Media Center, Xinhua News Agency New Media Center, China News Network, People's Daily People's Video and other mainstream media, the "We Decade @ Coordinate China" online theme publicity was launched, with the constantly refreshing Chinese span, Chinese precision, Chinese height, Chinese depth, Chinese strength, and Chinese speed as the longitude and latitude, focusing on the representative major achievements of infrastructure construction and scientific and technological innovation since the 18th National Congress of the Communist Party of China, showing that Chinese builders have overcome difficulties, Courage, courage and wisdom to push the limits.

On October 6, the 24th issue of the "Coordinate China" series of theme films launched the "Pull Out the Dome" of "China's Strength", focusing on the first "two-in-one" crawler in Chinacrane——Sany SCC52000TM crawler crane, praise for the heavy equipment of the great country, and applaud the majestic force to promote the development of the new era.

SCC52000TM is the first "two-in-one" 3,000-ton crawler crane in China, which was jointly developed by China Energy Construction Guangdong Thermal Power and Sany Group, and successfully rolled off the assembly line on April 28, 2022. On September 25, 2022, the crane completed the millimeter-level precision hoisting of the 225-ton dome of the "Hualong No. 1" nuclear power unit of the Guangdong Taipingling Nuclear Power Project, contributing to the "heavy equipment of the country". How to realize the hoisting of nuclear power dome? How to deform and combine the hoisting "Big Mac" with the power of a thousand jun? Let's take a look↓

Large wind turbine blades weighing more than a dozen tons

Stand tall and dance in the wind

Dozens of tons of shield machine cutterheads

Dig into the dungeon

Witness the vigorous power of the "infrastructure madness".

A nuclear dome of several hundred tons

Open a huge umbrella-shaped "protective cover"

Protecting the safety ...... nuclear power

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

Behind the smooth hoisting of the "Big Mac".

All hide a "super equipment"

Oversized tonnage cranes

PART1

How much does the power of a thousand pounds weigh?

This 3000 ton crawler crane

Upgraded from 1 unit of 1600 tons to 2000 tons

Then with another 2000 ton crawler crane

The "two-in-one" modification is "combined".

The maximum lifting capacity is up to 3000 tons

The crane has a maximum boom of 216 meters

(Main boom 108m + jib 108m)

Equivalent to the height of about 7 water cubes superimposed

The track frame is 17 meters long, which is equivalent to the height of a 6-story building

Spread out arms covers an area of 1,600 square meters

Equivalent to the size of 5 basketball courts

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

3,000 tons is equal to 6 million catties

This is equivalent to 2,000 cars weighing about 1.5 tons

Behind the lifting of the weight of 1,000 tons

There must be a thousand powers

3000 ton crawler crane

It is a well-deserved "Big Mac"

PART2

How to do it

Millimeter-level precision hoisting of 100-ton nuclear power dome?

The dome is an important barrier for the safety of nuclear power plants

It is to ensure the integrity and tightness of the reactor plant

An important part of achieving intrinsic security

September 25, 2022

3000 ton crawler crane after splitting

One of the 2000-ton crawler cranes was completed

The first in the Guangdong-Hong Kong-Macao Greater Bay Area

"Hualong No. 1" third-generation nuclear power station

-- CGN Taipingling Nuclear Power Project

Unit 2 containment dome hoisting

The dome weighs 225.8 tons

It is a hyperboloid hemisphere with a diameter of 45 meters and a height of 13.7 meters

The area is equivalent to 4 basketball courts

After hoisting such a "big guy" to a height of 70 meters

Smooth control falls on the nuclear island cylinder at a height of about 45 meters

And the deviation should be controlled in the millimeter level

It is also important to consider the deflection under the influence of the wind

Thermal expansion and contraction under temperature changes

It's a big challenge

In order to ensure that the dome hoisting is foolproof

The hoisting technician has carried out the hoisting process many times

BIM and other intelligent nuclear power construction technology simulation calculations

At the same time, the weather conditions are closely monitored before hoisting

Carry out simulation drills, emergency drills, dome test hoisting, etc

During the 2-hour hoisting process

The accuracy is controlled at the millimeter level

PART3

How do the "steel" twins transform and merge?

This steel hoisting "Big Mac"

The "fitting" process is also not complicated

As long as you get on the car, add two beams and longitudinal beams

Get out of the car and add the main stressed parts such as the front platform

Then through modular assembly

The mast, main boom and jib of the two crane trucks

"Two into one" form one

It was successfully "combined".

One of the crane trucks serves as the main engine

Another crane truck provides the power source

It can be controlled by a single driver

Even more ingenious

It can both "go out" with an order of 3,000 tons

It can also be "transformed" into two cranes that operate independently

Some typical operating conditions

It even achieved the effect of 1+1>2

furthermore

It is also equipped with all-round visual intelligent operation

and intelligent fault diagnosis system

At the same time, it is equipped with wireless remote control

Walking, lifting, slewing, etc

A series of high-precision movements

It can be achieved with wireless remote control

Truly let the "big guy" have "great wisdom"

China super heavy crawler crane

From nothing, from small to large

The journey from fully imported to world-leading

Fully demonstrated

The hard core power of "Made in China".

It is also a microcosm of China's rapid development

Content source丨State-owned Assets Supervision and Administration Commission official account "State-owned Assets Xiaoxin"