I! Pretending to Be Reborn, Director of Doomsday Hoax

In these areas where Longguo can use wind power, the lowest temperature is about [-] to [-] degrees below zero. Therefore, Xu Wenxing and others have never considered developing wind turbines with lower temperatures.

In fact, even in high-latitude areas such as Xiongguo and Bingtang, the lowest temperature of their wind turbines is about minus [-] degrees, which cannot be lowered.

Northwest Wind Power Bureau, Ding Yuanxun, director of heavy machinery research and development, stood up, and it was he who designed the two world-class double-fed wind turbines in China.

Ding Yuanxun looked solemn, and said: "Director Xu, three months ago, I gave a speech at the annual meeting of the Global Wind Energy Organization, and this speech happened to be related to the ambient temperature."

"The title is called, report on the correlation between the temperature field of the doubly-fed wind turbine and the ambient temperature."

"Based on the single-cycle cooling structure of the doubly-fed generator, I analyzed the velocity field, pressure field distribution and cooling medium circulation state of the internal flow field, and obtained the parameters required for temperature field analysis and the cooling status of different positions inside the generator."

"In addition, the temperature field parameters of the generator, such as the heating rate of the heating element inside the generator, thermal conductivity and convective heat transfer coefficient, were studied and calculated, and combined with the flow field analysis results, the calculation and simulation analysis of the generator temperature field was carried out..."

"The final result is that minus [-] degrees is already the limit of the current doubly-fed wind generator. If the temperature is lower, the heat load generated during operation will increase accordingly, and the insulation layer will be short-circuited, and the stator and generator will be frozen and cracked. Problems will arise one after another!"

"Two hundred degrees below zero, in my opinion, this kind of wind energy cannot be used!"

Xu Wenxing also expressed disbelief, saying: "The mechanical connection and power transmission of the wind motor, the blades of the horizontal axis fan are connected to the universal elastic coupling through the gearbox and its high-speed shaft, etc...all will be affected by the extreme cold. Impact,

For these devices, under the extreme cold, the insulation layer, insulation layer, and isolation layer will be frozen and cracked, and the precise parts will be destroyed by the extreme cold soon. "

"Another point is the transmission shaft, which needs to transmit the torque to the generator, so this rotating shaft needs to have good characteristics of absorbing damping and vibration, which means absorbing the right amount of radial, axial and certain angular deflection. shift,

At the same time, the coupling must have the function of preventing the overload of the mechanical device..."

"The transmission shaft and coupling that can achieve these characteristics alone are one in a million. At this time, it is almost impossible to resist the severe cold of minus two hundred degrees!!"

For a while, the meeting fell into a stalemate.

No one has confidence in the use of wind energy, and they can't be blamed. Two hundred degrees below zero is already close to absolute zero.

At this temperature, even the most tenacious bacteria will die, not to mention a sophisticated, interlocking large machine that contains tens or hundreds of thousands of parts and gears?

Xu Qiu closed his eyes, tapping the knuckles of his index finger on the table regularly.

This scene gave everyone an infinite sense of majesty. Unknowingly, they all felt a lot of pressure, and sat down silently, waiting for Xu Qiu to speak.

Zou Botao was looking forward to it.

Within one day, the forest moved first, and this time it was the extreme cold power generation.

And this time, how will he solve this problem?

After a long time, Xu Qiu finally opened his eyes.

His eyes were wise, and there was a touch of coercion in his eyes, and he said slowly:

"For a wind turbine, the most important thing is the nacelle and the generator."

"The nacelle contains the key equipment of the wind turbine, including gearboxes, generators, etc."

"At the left end of the nacelle, there are the rotor blades and the shaft. The blades capture the wind and transmit the wind force to the rotor shaft. Then the speed of rotation is increased through the speed increaser to promote the generator to generate electricity."

"In short, wind energy is converted into mechanical energy, and then mechanical energy is converted into electrical energy."

"We only need to improve the cold protection performance of the engine room and generator, and the rest will not be a problem."

Everyone was silent, thinking about Xu Qiu's words.

Xu Wenxing still held doubts and said: "Director Xu, not only the engine room and generator, we still have a lot of difficulties to overcome!"

"For example, rotor blades. This kind of huge blade, which is more than 20 meters long like a wing, is the basis for generating wind energy, but the existing mechanical structure will be destroyed without exception at minus two hundred degrees."

"There are also high-speed shafts, mechanical brakes, and hydraulic systems. We have difficulty making them work properly in extreme cold!"

"There are so many problems, we are... like re-manufacturing a wind turbine, and we also need to design the supporting lines and systems, everything needs to be done from scratch!!"

Jing Yuanzhong nodded, shook his head again, and said, "Yes, let's start over."

Everyone was frustrated.

According to Xu Qiu, on the lifeless, empty white surface, there will be a strong wind of more than 15 meters per second, and this, to this group of energy people, is like a huge mine!However, their current technology and equipment can't make use of such abundant resources at all, so they can only sigh in vain... The atmosphere in the meeting room is filled with regret, sigh and melancholy.

boom.

At this moment, Xu Qiu slapped the table with a slap.

Everyone quickly raised their heads and looked at Xu Qiu.

Xu Qiu on the stage had a firm face, deep eyes, and an expression full of pride and convincing confidence!

"Isn't it just starting over?!"

"After the sun goes out, all vitality is gone, and human civilization has entered a new era."

"And in that moment, we will start a new chapter."

"We, even this beautiful river and mountain, have to give up in order to survive, just start over, what is it?!".

Chapter 83 The Kingdom of Dragons...is it already this scary?

"Isn't it just starting over?"

These words echoed in everyone's minds.

Many people have felt the freedom and self-confidence in it, and their mood is slowly changing...

Jing Yuanzhong stood up at this moment.

He is the director of the National Energy Administration, so he must stand up at this moment and support Xu Qiu.

"Director Xu is right, we can even leave this vast and fertile China that we have lived in for thousands of years. What's the point of redesigning and manufacturing wind turbines?!"

Xu Wenxing touched his chin, and said in a low voice: "If we follow the previous design, it really won't work. However, our wind turbine will be unprecedented. It will even break the rules and systems of traditional wind turbines and achieve a world-class wind turbine." A brand new machine..."

"Because, since ancient times, more than 100 years, ordinary wind turbines have developed rapidly, but they have never jumped out of the wide range of minus [-] degrees to minus [-] degrees."

"And now we want to create an unprecedented, extremely cold wind turbine!"

Ding Yuanxun, who specializes in energy heavy machinery, couldn't hold back when he heard this, and said excitedly:

"Let me summarize the characteristics that this kind of extreme cold wind turbine needs to have."

"The first point is extreme cold resistance, at least it can operate at a temperature of more than 200 degrees below zero."

"Secondly, the turbine must not freeze! Because once the turbine freezes, the speed will be greatly reduced, and it may even stop, which will directly lead to the interruption of power generation."

"The third point is that due to the extinction of the sun, the global climate will no longer be stable, and extreme weather such as hurricanes and thunderstorms may increase. Therefore, this kind of wind turbine must also be able to operate normally in hurricanes, and be able to resist or avoid thunderstorms! "

"Other than that, it is the consideration of conventional indicators such as safety, reliability, stability, durability, etc. In the world of ice and snow, in the extreme doomsday environment, its various indicators must far exceed the existing ones. standard!"

A chief technician of the Northwest Frontier Wind Energy Bureau said:

"These methods should be able to solve it."

"Cold resistance depends on the properties of raw materials. We need steel, alloys, etc. that can withstand extreme cold."

"The second problem is turbine icing, which can change the location and arrangement of turbine generators, or install deicing and anti-icing facilities."

"As far as adaptability to extreme weather is concerned, hurricanes are easy to deal with, installing backup energy systems that can be used during blackouts, so that the turbines can adjust themselves to face the wind."

"And Thunderstorm, I'm afraid it would require a design compromise, and covering all the components with a standard turbo would solve that to some extent, but would be ridiculously expensive."

"Therefore, I have two plans that can be carried out at the same time. One is to add an insulating layer inside to prevent weather such as thunderstorms from affecting the precision parts inside."

"The second is to set up a lightning protection tower near the extremely cold wind turbine to attract all the lightning in the area and prevent it from damaging the wind energy generator."

More than a dozen high-level and technical personnel are speaking freely and expressing their ideas.

After the last person gave a generous speech and put forward a few new ideas.

Jing Yuanzhong originally planned to stand up and ask Xu Qiu to speak. At this moment, Xu Wenxing, who had been silent for a long time, stood up again.

This special engineer of the Energy Bureau, a top talent who enjoys special treatment and allowances from the state, is working fast.

"Director Xu, everyone, I'm thinking, why do we have to stick to traditional wind turbines?!"

"There are many new wind turbines at home and abroad, and all of them have achieved energy conversion efficiency that is not weaker than traditional wind turbines!"

"For example, airship wind turbines."

"Its appearance is a BAT that resembles a puffer fish, but in fact, it is a small hollow airship filled with nitrogen."

"At its center is a giant wind turbine that floats 304 meters in the air to generate electricity against the wind and transmit that energy back to the ground."

"The outer shell of BAT is made of airtight and durable fabric, which is filled with nitrogen. With the help of new fabric technology, BAT has achieved a low gas leakage rate. The design principle is to use an inflatable shell filled with nitrogen for hoisting, while using high-strength The rope holds the device in place so that it can transmit power to the surface through wires."

"The wind at high altitudes is stronger, and the power generated is twice that of conventional heights. It is also environmentally friendly, cheap, and easy to install and maintain."

"There is also a tree-shaped wind turbine that impresses me!"

"These groups are shaped like tree branches, with small vertical wind turbine blades distributed in each branch. It is 11 meters high as a whole, with a diameter of about 8 meters, and 72 small vertical wind turbine blades are distributed."

"Due to the lightweight design, the unit can generate electricity even at low wind speeds. Each tree-shaped unit can generate a maximum of 3.1 kilowatts of electricity, and it runs silently. The cost of each 'wind power tree' is about two One hundred thousand, it can run about 280 days a year, and the cost can be recovered within a few years!"

There was a thunder in everyone's heart, and their thoughts were immediately opened.

Jing Yuanzhong said excitedly: "I once saw a UFO fan in Berry Country."

"It installed an umbrella-shaped shroud with a diameter of 1.7 meters on the 18MW wind turbine. This umbrella-shaped shroud can deflect the direction of the wind flowing to the tip of the blade, thereby improving the energy captured by the wind rotor, which looks like a wind turbine. The UFO was stuck to the face of the fan."

Ding Yuanxun's eyes also brightened, and he introduced: "We don't even need to think about the leaves."

"In our traditional impression, a wind turbine is a pillar with three blades, but as long as we have enough technology, we can even manufacture a bladeless wind turbine that can generate electricity without fan blades!"

"This bladeless wind turbine will take up less space, and it doesn't need to consider the turning of the blades. It can collect all the wind from all directions!"

Hearing this, Xu Qiu's serious expression finally eased.

This is the discussion atmosphere he wants to see.

The so-called starting over is not to follow the original system and formwork to manufacture blade wind turbines that are exactly the same as before, but only focus on improving the cold resistance of the material itself.

What Xu Qiu needs is a completely subversive and surprisingly successful extreme cold wind motor!

Bang bang bang.

Xu Qiu knocked on the table with deep eyes.

His words were slow, full of weight and trust, and he said: "Everyone, I ask you to submit more than five proposals for extreme cold wind turbines within one month."

"I don't care what it looks like, whether it is a traditional pillar with three leaves, or a strange shape, as long as its performance is superior enough to provide us with a steady stream of energy in the lifeless white wind after the sun goes out. Energy, even if qualified!"

Jing Yuanzhong stood up, straightened his body, and said with a sharp look in his eyes: "I take orders!!"