Rebirth in 1989: Creating the Chinese Technology Empire

Chapter 250 Technology Verification Ship: The Sky-shattering Island-Building Artifact

"Okay, this is good..."

Mr. Liu looked at the gantry crane with a bright smile on his face, and so did the technicians behind him, who were all in a happy mood.

Xu Huasheng began to introduce this dock to everyone. The large and small equipment used in this dock are all made in China and have superior performance.At the same time, this shipyard can build almost all ships on the market. Even super cargo ships with a displacement of 20 million tons can be manufactured in this shipyard. There are four such shipyards in this shipyard, and four large ships can be built at the same time. .

After looking around in 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 can have a happy cooperation in the next period of time. Everyone, what our company will build next is a special ship..."

Xu Huasheng directly took out a rendering and hung it on the blackboard in the conference room. When they saw the rendering, everyone's 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 no-load displacement of 3.2 tons and a full-load displacement of about 196 tons. The length is 47 meters and the width is 8 meters. The total installed power is 3700 kilowatts. It adopts all-electric push mode. The reamer holder weighs 55 tons. The deepest excavation depth is 2.5 meters. The designed dredging capacity is 230 cubic meters per hour. The transmission distance is 3.3 meters. The rated power of the reamer is [-] kilowatts... …”

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

Because of these data, if you pull it out at random, it will be an astronomical figure for China.Every one of them is a difficult-to-reach technology for them.

If nothing else, the total installed power is terrible. Are you sure that the total installed power of 8 kilowatts is not a joke?Converted to horsepower, it is 11 horsepower.

What is the concept of 11 horsepower?For comparison, the total power of the American Nimitz-class aircraft carrier is 26 horsepower.But that thing is a [-]-ton nuclear-powered aircraft carrier.

And now this 3.2-ton ship has 11 horsepower. Everyone knows what this means.If China really has such a power system, there is no need to worry about building an aircraft carrier power system.

As for other data, it is also astonishing, like a book from heaven.Especially the work efficiency, 2.5 cubic meters per hour, are you sure you're not joking?

2.5 cubic meters, do you know what this is?

China Future’s Tiankun has a dredging capacity of 6000 cubic meters per hour.As for this big guy, the efficiency of one unit is more than that of four Tiankuns.If you use this thing to build islands 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 1.7 tons, and its full load displacement is [-] tons.

The thing Xu Huasheng took out has an unloaded displacement of 3.2 tons, and a full-loaded displacement of [-] tons.With this physique, the equipment above was removed and turned into a flat-deck fighter jet that could easily take off and land vertically.

Such a ship is truly a valuable weapon of a great country.

"Xiao Xu, is this step too big?"

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

Two days ago, Xu Huasheng called and said that he wanted to build a big ship with a capacity of more than [-] tons, and the technology was relatively high-end.

Mr. Liu thought it was a ship of about 3.2 tons. Who knew that now the empty load is [-] tons, and the full load is directly up to [-] tons. With a ship of more than [-] tons, you have a lot to spare.

"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. It is almost finalized and its performance can fully meet the needs. As for the various components used on this ship, Our company now has enough technical reserves to produce materials, and the difficulty is not too great. The reason why I asked you to come this time is actually because I want you to help us solve a more important problem, that is, the electric propulsion system. This ship's For electric propulsion, I am not going to use AC electric propulsion, but a medium-voltage DC integrated electric propulsion system..."

When Xu Huasheng finished speaking, everyone's eyes widened.

They have really never heard of the term medium-voltage DC integrated electric propulsion system.

Alternating current push, this is not unfamiliar to them.After all, ship electric propulsion is not a new concept.

It’s just that electric pushers have the advantages of electric pushers, but electric pushers also have disadvantages.

The biggest disadvantage is that it is unstable and has a high failure rate. Once it fails, the entire ship will lose power.

Stability is now the biggest difficulty in electric propulsion technology in various countries. This difficulty is not to mention now, even 40 years later, it will still be a technical difficulty that has been plaguing Europe and the United States.

But for China, this problem has basically been solved since Ma Mingwei led the team to develop the medium-voltage DC integrated power system.This system has allowed China to lead the way in ship power systems, completely opening up the gap with the United States and leading the United States by at least 15 years.

If this system is developed now, it will not be 15 years, but 30 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 talk about what medium-voltage DC integrated power system is. With Xu Huasheng's talk, everyone seemed to be pushed open the door to a new world.

The eyes of Ma Mingwei, who was sitting in the back, lit up completely.Because what Xu Huasheng explained is also what Ma Mingwei has been thinking about and what he has always wanted to study.

It's just that I have never had the chance. After all, I am just a professor now.

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

Xu Huasheng did not present 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. Next, the team only needs to study according to this direction. At the worst, Xu Huasheng can come over and occasionally cheat to advance the progress.The reason why Xu Huasheng did not come up with specific data was because he had his own considerations.Because the technology is too complex, it is better to let these teams explore according to the direction than to use it directly. Only by thoroughly understanding these technologies can this technology be better in the future.In this process, these technicians may be able to open up new technology trees.