Rebirth in 1989: Building a Chinese Technological Empire

"Good, this is good..."

Mr. Liu looked at the gantry crane with a bright smile on his face, and the technicians behind him were also in a good mood.

Xu Huasheng began to introduce the dock to everyone. The equipment used in this dock is all domestically made and has excellent performance. At the same time, this dock can build almost all ships on the market, even those super freighters with a displacement of 100,000 to 200,000 tons can be built in this dock. There are four such docks in this shipyard, and four large ships can be built at the same time.

After looking around the dock, Xu Huasheng led everyone to a huge conference room.

"Dear teachers, first of all, on behalf of our Huayun Shipyard, I would like to extend a warm welcome to everyone. I hope we will have a pleasant cooperation in the next period of time. Ladies and gentlemen, our company will build a special ship next..."

Xu Huasheng directly took out a rendering and hung it on the blackboard in the conference room. When everyone saw this rendering, their eyes widened, even Mr. Liu.

"Everyone, this is the ship our company wants to build. This is a modern cutter suction dredger, with a designed empty displacement of 32,000 tons and a full load displacement of about 50,000 tons. The ship is 196 meters long and 47 meters wide, with a total installed power of 80,000 kilowatts. It adopts a fully electric propulsion method, a reamer frame weight of 3,700 tons, a maximum excavation depth of 55 meters, a designed dredging capacity of 25,000 cubic meters per hour, a transmission distance of 230 meters, and a rated reamer power of 33,000 kilowatts..."

In the conference room, Xu Huasheng pointed to the renderings and began to introduce the various design data of the dredger. After hearing this design data, everyone's eyes widened.

Because any of these data is an astronomical figure for China. Each one is an unattainable technology for them.

If nothing else, the total installed power is terrible. Is the total installed power of 80,000 kilowatts not a joke? Converted into horsepower, it is 110,000 horsepower.

What is the concept of 110,000 horsepower? For comparison, the total power of the US Nimitz-class aircraft carrier is 260,000 horsepower. But that thing is a 100,000-ton nuclear-powered aircraft carrier.

And now this 32,000-ton ship has 110,000 horsepower. Everyone knows what this means. If China really has such a power system, there is no need to worry about the power system of the aircraft carrier.

As for other data, it is also amazing, like a heavenly book. Especially the work efficiency, 25,000 cubic meters per hour, are you sure you are not kidding?

25,000 cubic meters, do you know what this concept is?

China's future Tiankun has an hourly dredging volume of 6,000 cubic meters. And this big guy, the efficiency of one ship is more than four Tiankuns. If you use this thing to build an island in the South China Sea, it will definitely be very cool.

Of course, the displacement of this guy is much larger than that of the Tiankun. The displacement of the Tiankun is only 10,000 tons, and the full load displacement is 17,000 tons.

The thing that Xu Huasheng brought out has an empty displacement of 32,000 tons and a full load displacement of 50,000 tons. With this physique, the equipment on it can be dismantled to become a flat deck, which can easily take off and land vertical take-off and landing fighters.

Such a ship is definitely a great weapon of a great country.

"Xiao Xu, isn't this a big step?"

Even Mr. Liu couldn't help but say after hearing it.

A few days ago, Xu Huasheng called and said that he wanted to build a big ship of more than 10,000 tons, with relatively high-end technology.

Mr. Liu thought it was a ship of about 10,000 tons, but now it is 32,000 tons empty and 50,000 tons fully loaded. Your more than 10,000 tons is a bit too much.

"Mr. Liu, although it is difficult, it is not impossible. Let's talk about the power system first. Our company is currently developing a gas turbine, which is almost finalized and its performance can fully meet the requirements. As for the various materials used on this ship, our company now has sufficient technical reserves, and the difficulty is not too great. The reason why I asked you to come this time is actually to let you help us solve a more important problem, that is, the electric propulsion system. For the electric propulsion of this ship, I am not going to use AC electric propulsion, but a medium-voltage DC integrated electric propulsion system..."

When Xu Huasheng's voice fell, everyone's eyes widened.

Medium-voltage DC integrated electric propulsion system, they really haven't heard of this term.

AC electric propulsion, they are not unfamiliar with it. After all, ship electric propulsion is not a new concept.

It's just that electric propulsion has its advantages, but electric propulsion also has its disadvantages.

The biggest disadvantage is instability and high failure rate. Once a failure occurs, the entire ship will lose power.

Stability is nowThe biggest difficulty for all countries in electric propulsion technology is a technical difficulty that has always troubled Europe and the United States, not to mention now, even forty years later.

But for China, since Ma Mingwei led the team to develop a medium-voltage DC integrated power system, this problem has basically been solved in China. This system has allowed China to lead the way in ship power systems, completely widening the gap with the United States, leading the United States by at least fifteen years.

If this system is developed now, it will not be fifteen years, but thirty years ahead.

"What is a medium-voltage DC integrated power system? In fact, the principle is not difficult..."

In the conference room, Xu Huasheng began to explain what a medium-voltage DC integrated power system is. As Xu Huasheng talked about it, everyone seemed to have opened the door to a new world.

And Ma Mingwei, who was sitting in the back, had his eyes completely lit up. Because what Xu Huasheng explained was what Ma Mingwei had actually been thinking about, and what he had always wanted to study.

It's just that he never had the opportunity, after all, he is just a professor now.

But now, Ma Mingwei's eyes are bright, and his brain is like a sponge, desperately absorbing what Xu Huasheng said.

Xu Huasheng did not bring out all the data, but he explained the general principles of the medium-voltage DC integrated power system.

This is equivalent to having a clear direction. The team only needs to study in this direction. At most, Xu Huasheng will come over occasionally to make progress. Xu Huasheng has his own considerations for not bringing out specific data. Because the technology is too complicated, it is better to let these teams explore according to the direction instead of bringing it out directly. Only by mastering these technologies can this technology be better in the future. In this process, these technicians may have a lot of ideas and open up the technology tree again.