1493 That's It? It's Not a Problem at All!

Before that, we were very weak in the power management system of ships. It can be said that before 2000, we had been following the pace of Europe and the United States.

At that time, European and American ships and warships mainly used a low-voltage integrated ship AC control system.

To put it bluntly, it is the engine of the ship. While providing kinetic energy to the ship, it also drives the generator on the ship to generate electricity to supply power to the entire ship.

The whole set of technology is relatively old, but the effect is quite reliable.

However, its old power supply system layout has gradually been unable to meet the needs of modern ships and warships.

So Britain, the United States and other countries started the development of the power supply system for the second-generation ships and warships, that is, the development of the medium-voltage integrated ship AC electric control system.

At this time, we also realized that it is time to go our own way, and we cannot learn to walk behind the ass of Europe and the United States as before.

So since 2003, we have started the research and development of the power system of a new generation of ships and military ships.

Because at that time, we were not only backward in warships, but also in submarines.

Don't say anything else, just say that the big turtle shell on the back of our submarine will delay a lot of things.

One of the biggest disadvantages of this turtle-back design is that the surface of the hull is not smooth, so when diving underwater, it will produce a lot of noise.

And because of the irregular shape, it will bring a lot of resistance, which greatly consumes the power of our submarine.

But at that time, it was not enough not to adopt such a design, because the electromechanical system of our submarine was too backward.

All the electromechanical supporting systems that need to be used in the submarine are not good enough.

For example, sonar, fire control system, etc., and even the power system are more than a generation behind those in Europe, America and other countries.

In order to catch up with European and American standards, we cannot always follow behind them and have to find another way.

At this time, academician Ma took the lead to set up this development team, and began to specialize in the electromechanical systems used by ships.

This is the medium-voltage integrated ship direct current system developed by Academician Ma. The biggest difference between this system and the electric control system in Europe and America is that we use direct current.

The benefits of this system,

That is, the layout is neater and smaller than the power generation system, which can effectively reduce the load on ships.

In addition, the power generation effect is better than that of alternating current, and its own loss is small, and because the power generation system is small, it can even be equipped with a considerable power storage space for the ship.

To put it bluntly, it is to install a large battery system, which can be used as a backup.

Anyway, compared with the AC system dominated by Europe and the United States, this system has many advantages.

But there are also many disadvantages, such as the need for very powerful circuit breakers and vacuum circuit breakers, because the direct current is relatively rapid, so a lot of these components are needed to protect the important power equipment on the transmission.

In case sometimes the current is suddenly too high, it will burn the equipment.

There is also a new composite energy storage system and a new power control system.

These are very complex and headache-inducing development tasks.

Of course, European and American countries also know the benefits of using medium-voltage direct current, but why don't they develop this system?

It is because this system is too troublesome. If they want to do it, they will have to develop a new system.

After all, they have very sufficient experience in alternating current, so it is not worthwhile to develop such a system.

But we have to bite the bullet and develop such a system ourselves in order to stop chasing other people's asses.

From the establishment of the project in 2003 to 2018, it took a total of 15 years, and it really made us come up with it.

With this system in place, the overall strength of our navy will immediately rise to a new level.

For example, we have adopted such a system on the new aircraft carrier that is about to be launched.

And with this system as a guarantee, our aircraft carrier is said to have solved the electromagnetic ejection system that even the Americans failed to handle.

What's more, our warships actually conducted experiments on electromagnetic guns before. You must know this thing, but even Lao Mei couldn't handle it!

The reason why the Americans can't figure it out is because the electromagnetic gun is too energy-consuming, and every shot needs to consume a lot of electricity.

And their ships, because they use a medium-voltage AC control system, do not have large energy storage devices on board.

This is equivalent to the inability to provide a power cabin for the electromagnetic gun.

And our medium-voltage DC electric control system just happens to have one more energy storage device than theirs, which is exactly this system.

Only in this way can the electromagnetic ejection of the aircraft carrier and the electromagnetic guns on the ship continuously provide kinetic energy.

Now Academician Ma is ready to move this system to the submarine, but he still has a few difficulties to overcome when pushing the shaftless pump.

"Our shaftless pump propulsion concept is to fix the drive motor on the fixed stator outside the boat, and the stator is a ring-shaped conduit."

"And on the inside of the duct, there is a circle of rotors, and the blades of those turbofans are fixed on this circle of rotors."

"The difference from the traditional rotor is that the traditional rotor has another main shaft in the middle, but ours does not have it, because the driving concept is different."

"Our driving idea is to rely on the motor wrapped in the stator, use the shaftless drive mode, and drive the inner rotor by electromagnetic reaction. That's why the blades of the propeller adopt such a layout..."

Xiao Li told Xiao Feng about their concept of shaftless drive.

Although Xiao Feng's level of physics is average, he has also studied physics in high school after all, and he can still understand some basic common sense that Xiao Li said.

"The problem we are facing now is, first of all, the processing of the stator."

"Because this stator is not just as simple as a layer of annular ducts, it is actually integrated with the shroud."

"Moreover, the shroud is connected to the annular body of the rotor, and the rotor inside must be driven to rotate in the electromagnetic reaction..."

"So this puts very high demands on the shroud, especially in terms of machining."

"In the past, we could also use segmented processing, and then welding, or bonding together processing mode."

"However, because of the working environment of the submarine, as you know, it is often underwater at a depth of several hundred meters, and sometimes it has to make very intense evasive movements, so this has very high requirements for this drive system."

"We have also tried to use some new materials in this part before, such as carbon fiber, or nanotechnology."

"However, it was later discovered that these were all nonsense, because at a depth of 300 meters, the strong water pressure was simply not something that new materials could handle."

"Especially sometimes in some sea areas where the seabed is very complicated, if the drive system of the submarine collides with the mountains on the seabed, the drive system using composite materials will be very prone to fracture, which will cause the submarine to lose power. .”

"You know, if you lose power under the seabed, you will be in big trouble..."

Xiao Li didn't care whether Xiao Feng could understand or not, anyway, he told him all about the difficulties they encountered now.

Although Xiao Feng is not an expert in military affairs, he can basically understand it. Indeed, if a submarine loses its power underwater, it will definitely be a disaster.

"Finally, after several studies, we still feel that the use of alloy materials is the most reliable."

"But the current problem lies in the processing. In order to ensure the best effect of the annular shroud, we have very high requirements for processing precision."

"Because it is necessary to work in the deep sea, it is necessary not only to ensure that the shroud is resistant to high pressure, but also to ensure very good corrosion resistance and airtightness."

"In the past, we could produce similar shrouds by welding modules, but it always required frequent and regular replacement and maintenance, and the cost of use was somewhat high."

"And this time, after the teacher heard that your Starfire Technology has such a robot, I wanted to come over and ask your robot if it can have the technology of one-piece molding to produce this kind of annular shroud."

Xiao Li finally described the difficulties they are currently encountering and the problems they hope Xiao Feng can help solve.

And when Xiao Feng heard this, he secretly smiled, that's it? It's not a problem at all!

For the complex S-shaped blades used in aviation, our machine tools can carve patterns for you, and even guarantee that the internal cavity of your blades can be processed for you.

Not to mention such a large annular shroud!

However, Xiao Feng didn't pat Academician Ma and the others on the spot, but called several cloning experts over.

Then asked Academician Ma to take out the drawings of the annular shroud, as well as some technical parameters.

After that, in front of Academician Ma and his team, several cloning experts were asked to input the graphics and technical parameters into a machine tool simulation processing system developed by themselves.

Then I tried to process it. Of course, this mainly requires a programming process.

In fact, this problem is really a small case for several cloning experts, but in front of the navy, they always have to put on a show.

So I fiddled with it for more than an hour, and explained again, we need to design a set of enlarged version of machine tool equipment first.

Then I reprogrammed or something, but the final conclusion was that there was no problem.

We can produce this thing.

And it is the same as Academician Ma's request, we are formed in one piece according to your request!

And when several cloning experts were modeling on the computer and conducting simulation experiments, Academician Ma's eyes widened.

Because of this system, he has never seen it before. You must know that they are still using the French Dassault for design.

Sometimes even American CAD is used. Although they know that these industrial software are not safe, they really have no choice!

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