Previously, we were very weak in the power management system of ships. It can be said that 2,000 years ago, we had been following the pace of Europe and the United States.

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

To put it bluntly, the engine of a 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 began the development of power supply systems for second-generation ship warships, that is, the development of medium-voltage integrated ship alternating electrical control systems.

At this time, we also realized that it was time to go our own way and we could not learn to walk behind the European and American butts like before.

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

Because at that time, not only were our warships behind, but our submarines also fell behind.

Not to mention anything else, just talk about the big turtle shell on our submarine, which will delay a lot of things.

One of the biggest disadvantages of this turtle back design is that the hull is not smooth on the outside, which will cause a lot of noise when sneaking underwater.

Moreover, due to irregular shapes, it will also bring great resistance, which greatly consumes the power of our submarines.

But it was not possible to not adopt such a design at that time because the electromechanical and electrical systems of our submarines were too backward.

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

For example, sonar, fire control system, etc., and even power systems are more than one generation worse than those in Europe and the United States.

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

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

This is the medium-voltage integrated ship DC system developed by Academician Ma. The biggest difference between this system and the electronic control system in Europe and the United States is that we use DC power.

The advantage of this system is that it is that it has a cleaner layout and is relatively small compared to the power generation system, which can effectively reduce the load on ships.

In addition, the power generation effect is better than alternating current, and its own losses are smaller. Because the power generation system is small, it can even provide a considerable amount of power storage space for ships.

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

Anyway, compared with the AC power system dominated by Europe and the United States, there are many benefits.

But there are also many disadvantages, such as the need for a very powerful air opening and vacuum circuit breaker. Because DC power comes more rapidly, a lot of these components are needed to protect important power equipment in propagation.

To avoid the current suddenly being too high, the equipment will be burned.

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

These are very complex and troublesome development work.

Of course, European and American countries also know the benefits of using medium voltage DC power, but why don’t they build this system?

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

After all, they have sufficient experience in AC power, so they cannot make it difficult to develop such a system.

In order to stop chasing others' butts, we had to bite the bullet and develop such a system ourselves.

It took a total of 15 years from the project establishment in 2003 to 2018, and we really made it.

With this system, our navy's overall strength level immediately reached a higher level.

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

With this system as a guarantee, our aircraft carrier is said to have already completed the electromagnetic catapult system that even the Americans can't handle.

Also, our warships had conducted experiments on electromagnetic cannons before. You must know that this thing was not even able to handle by the Americans!

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

Because their ships use medium voltage alternating current control system, they do not have large-scale energy storage equipment on the ship.

This is equivalent to not being able to provide a power compartment for the electromagnetic gun.

Our medium voltage DC electrical control system just happens to have an additional energy storage device than them, which is exactly this system.

Only by providing continuous kinetic energy for the electromagnetic catapult of the aircraft carrier and the electromagnetic cannons on the ship.

Now Academician Ma is ready to move this system to the submarine, but with the shaftless pump push, he still has several more difficulties to overcome.

"Our concept of shaftless pumps is to fix the drive motor on the fixed stator outside the boat, and the stator is a circle of annular conduits."

"And on the inside of the catheter is a circle of rotors, and the blades of the turbofans are fixed to this circle of rotors."

"The difference between traditional rotors is that traditional rotors is another spindle in the middle, but we don't have this because the driving concept is different."

"Our driving concept is to rely on the motor wrapped in the stator, use a shaftless drive mode, and drive the rotor on the inside by electromagnetic reaction. Therefore, the propeller blades adopt this layout..."

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

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

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

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

"And there is also a ring body connected to the rotor in this flow conduit, 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 processing.”

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

"But because of the environment in which the submarine needs to work, you also know that it is often underwater at a depth of hundreds of meters, and sometimes it has to do very intense avoidance movements, so this requires a very high level of driving system."

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

"But later I found out that these are nonsense, because under 300 meters deep water, the strong water pressure is not something new materials can handle."

"Especially in some sea areas where the seabed is very complex, if the submarine's drive system collides with the mountains on the seabed, the drive system using composite materials will easily break, resulting in the submarine losing power."

"You know, if you lose motivation under the sea, it will be a big trouble..."

Xiao Li didn't care whether Xiao Feng could understand it or not. He just told him all the difficulties they were facing now.

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

"Finally, after several research, we still think that using alloy materials is the most reliable."

"But the problem now lies in the processing. In order to ensure that the effect of this annular flow conduit can achieve the best, we have very high requirements for processing accuracy."

"Because you have to work in the deep sea, you must not only ensure that the diffuser is resistant to high pressure, but also very good corrosion resistance and sealing properties."

"In the past, we could produce similar flow shields using module welding, but we always had to replace and maintain them regularly, which was a bit expensive."

"This time the teacher heard that there is such a robot on your Star Fire Technology, so he wanted to come and ask if the robot on your side can have integrated molding technology to produce this ring diffuser."

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

When Xiao Feng heard this, he smiled secretly in his heart. Just this? It’s nothing at all!

Our machine tools can carve flowers for you with such complex S-shaped leaves used in aerospace vehicles, and even ensure that the cavity inside your leaves can be processed for you.

What's more, such a large ring diffuser!

However, Xiao Feng did not take the chest and guarantee the Academician Ma and others on the spot, but called several cloning experts over.

Then Academician Ma asked him to take out the drawings of the circular flow cone and some technical parameters.

Afterwards, in front of Academician Ma and his group, several cloning experts entered the graphics and technical parameters into a machine tool simulation processing system they developed 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 pretend to behave.

So I tinkered with it for about an hour and explained that we should first design a set of enlarged machine tools.

Then I re-programmed and other things, but the final conclusion is that it is no problem.

We can produce this thing.

And it is the same as Academician Ma asked, we are formed in one piece according to your requirements!

While several cloning experts were modeling on computers and conducting simulation experiments, Academician Ma on the opposite side was staring wide.

Because of this system, he had never seen before. You should know that they are still using French Dassault when designing.

Sometimes they even have to use American CAD. Although they know that these industrial software is not safe, they really have no choice!
Chapter completed!