Coordinates China | Thousands of tons of major powers to interpret "Balanced Dance"
Author:State -owned Assets Xiaoxin Time:2022.09.21
Xiaoxin said
In the past ten years, a series of heavy weapons and super engineering created by central enterprises have engraved new coordinates of national development from different dimensions. On September 12th, the online theme promotion of "our ten years@coordinates China" was officially launched. Over the major achievements of representative infrastructure construction and scientific and technological innovation, it shows the courage, courage and wisdom of challenging the limits and challenging the limit.
A millions of kilowatt water electricity units weighing more than 8,000 tons and more than 50 meters high. During the construction of this behemoth, many component accuracy was calculated in millimeters. Its core component, the rotor of the rotor independently developed by Dongfang Electric is divided into 900 layers of the pins of more than 16,000 magnetic pins. After the relative theoretical center deviation is less than 0.02 mm, it is equivalent to only one -third of the diameter of one hair. Today, Xiaoxin brings you the ninth issue of the "coordinate China" series theme films, "China Contest" "Balanced Dance".
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When the rolling Jinsha River water continues to pass
Pressure steel pipe poured into the water turbine
Drive the unit high -speed rotation
The potential energy of water is converted into a steady stream of electricity
in
The core component of the unit -rotor magnetic 机
Play a key role
Oriental Electric's independent development
Global single -machine capacity maximum power millions of kilowatt water electric units
The rotor magnetic pyramid is filmed by more than 16,000 magnetic pills
Divided into 900 layers into this "thousand layer of cakes"
The height is nearly 4 meters, and the diameter exceeds 15 meters
Weighing more than 1200 tons
How important is it?
As far as Baihetan million kilowatts of water electricity units are concerned
The rotor can reach 111 times per minute
More than 16,000 magnetic pills
As long
It will cause uneven weight of the entire rotor
When the unit rotates, there will be a huge centrifugal force
Damage to related parts
Want to make more than 16,000 layers stacked and stacked up and evenly flat
Each layer must be extremely uniform and flat
Even if each punch is only 0.01 mm deviation
After more than 900 layers of stacking, more than 900 times will be enlarged
If it is not controlled and adjusted
It will seriously affect the safe and stable operation of the unit
How difficult is it to stack the "Thousand Layers"?
The rotor is a behemoth
Magnetic stacking is "embroidered kung fu"
Effectiveness, processing efficiency, and feasibility of transportation, processing efficiency, and transportation
There are many influences such as on -site installation requirements
Magnetic 整 cannot adopt the overall structure
You must choose good mechanical properties and
Magnetic performance of magnetic punching pieces are staggered and stacked
Then use tightening the screw to fasten to a whole
Magnetic pill
Adopt industry advanced
Digital unmanned workshop laser cutting
Effectively ensure the processing accuracy
Each punch is 60 kg, 4 mm thick
The builder needs to be manually stacked to a height of 3.6 meters high.
Round with a diameter of more than 15 meters
Among them, more than 1500 roots are tightened screw
More than 3,000 nuts fixed
Installed personnel need to control the rotor magnetic cylindrical and concentricity
Make magnetic pupa and the entire rotor "concentric circle"
Because the number of layers is as many as 900 layers
150 layers per stack
The technical team must choose 54 points on the section balance
Measure accuracy
Strictly control the radius deviation of magnetic maggots
Motor work at the same time
To control the overall height and roundness
One by one, one layer
Every link requires excellence
The requirements of Baihetan Unit Boutique Standard Requirements
Magnetic cricket center deviation is 0.15 mm
Magnetic Magnolia Made in Oriental Electric Manufacturing
Relative theoretical center deviation is less than 0.02 mm
Just equivalent to one -third of the diameter of a hair
Help the world's largest scale in today's world
Hydropower engineering with the highest technical difficulty
White crane bright wings
Central enterprise engineer
With the original intention of craftsmanship, and struggling to take the mission
Pour the new image of China with the most reliable hands
Help to improve "China Intelligent Manufacturing"
Brand reputation and global influence
Do you want to know which new era coordinates?
The comment area tells us ~
Please continue to pay attention to "coordinate China",
The next issue is equally wonderful!
The next preview
September 22
Issue 10 of the theme film of "Coordinates China" series
China's "Kiss of Space" will be launched
Stay tuned!
- END -
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Source: People's Daily WeChat public accountEdit: Han Yajiao