Coordinates China ｜ Thousands of tons of major powers to interpret "Balanced Dance"

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".

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?

Please continue to pay attention to "coordinate China",

The next issue is equally wonderful!

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