Yang Jie does not think that the technology of the whole ship integrated power system developed by these countries in Europe and the United States is backward, on the contrary, this set of technology is the development direction of surface ships in the future, but these countries in Europe and the United States have chosen a technical route with the highest degree of complexity, and in the end, even high-tech countries like the United States can not carry it out, and finally have to turn around and develop the technical route of medium voltage DC integrated power system.

Professor Ma Weimin is also keenly aware of the inherent defects of the medium-voltage AC integrated power system, and has aimed at the technology of the medium-voltage DC integrated power system from the beginning.

Now Huaxing Group has solved the technical difficulties in fuel cell and motor system, Professor Ma Weimin no longer needs to develop high-power DC generators and permanent magnet DC motors, and now his energy has shifted to integrated power system and electromagnetic compatibility.

When Professor Ma developed this system, he also prepared for the development of high-energy weapons on ships.

Yang Jie also learned in detail about Professor Ma Weimin's research and development progress in these aspects, he saw the white hair coming out of Professor Ma's temples, and said: "Professor Ma, I heard that you often stay up late for research and development, you still have to pay more attention to your body!"

"Now the country urgently needs advanced surface and underwater ships to confront foreign navies, as long as I can hold on, I will do everything I can to speed up the progress of research and development. ”

Ma Weimin said with a firm face.

Yang Jie was also very admired in his heart, and nodded: "Our company will do its best to cooperate with your research and development, and what you need can be put forward to our company." ”

"That's so much thank you Yang Shao!"

Ma Weimin said excitedly.

In the afternoon, Yang Jie was also accompanied by everyone to a huge indoor pool, which was also filled with liquids used to simulate the seawater environment.

At this time, several technicians also used a crane to lift a large round object, this object looked very strange, the inner edge of the wheel was covered with pieces of paddles shining yellow, and there was a large gap in the middle.

This is the shaftless pump push test product researched by Professor Ma Weimin, the stator of the motor is fixed inside, and the paddle is welded on the permanent magnet slider, and the rotor drives the paddle to rotate circulatingly after being energized, pumping out the seawater from the middle part, thereby pushing the ship forward or backward.

However, the ring motor is very different from the ordinary motor in terms of magnetic field design and structure, and the environment in which such a motor is used in a high salinity environment such as the ocean, which puts forward extremely high requirements for the sealing performance and corrosion resistance of the motor, and the motor is now exposed to the outside of the ship, and the shielding of electromagnetic signals and underwater acoustic signals must also be treated.

Huaxing Group and the Naval University of Engineering also jointly developed this ring motor, and the design scheme was designed by Professor Ma Weimin and several other experts from the Naval University of Engineering.

The Naval University of Engineering has decades of experience in the research, design and development of surface ships and underwater ships, and has formed its own unique design ideas.

The Machine Tool Research Institute also manufactured it according to this design scheme, which solved many engineering and technical problems.

In the past, these professors and experts of the Navy Engineering University could design very advanced surface ships and exquisite equipment, but they could not be made due to the limited industrial level in China, either the materials were not up to standard, or the processing accuracy was not enough, and even the reliability of the manufactured products was very poor.

As early as the 70s of the last century, the Naval Engineering University came up with the 055 large missile destroyer model design plan, and was ready to use two 32,000 horsepower gas turbines as power, but limited to the current situation that the domestic gas turbine development level was relatively backward at that time, this plan ended in miscarriage.

However, Yang Jie dug a group of world-class technical experts from the Russian Machine Tool Research Institute many years ago, and then established the Machine Tool Research Institute, and also recruited a group of the top domestic senior technicians to develop high-end CNC machining equipment, and also successively sent more than ten senior technicians to the Institute of Precision Engineering of Cranfield University in the United Kingdom for further study.

To this end, Huaxing Group also sponsors a lot of money to Cranfield University every year, and also uses a lot of connections.

These senior technicians who returned from their studies also immediately participated in high-precision CNC machining equipment, especially Liu Baocheng's talent in this area, and after returning to China, he designed and manufactured ultra-precision CNC lathes and grinding machines and other equipment.

After continuous adjustment and software upgrades, these devices have become mature and reliable, especially in terms of accuracy and stability, they are stronger than the first echelon of ultra-precision manufacturers such as German CHIRON, and have successfully squeezed into the first echelon.

This is mainly due to the fact that the current machine tool research institute is too strong in motor technology.

And Huaxing Group has a large number of technical patents in the design and processing technology of various materials, basically Huaxing Group has designed a high-precision product program, and the Machine Tool Research Institute can try to produce and produce processing equipment.

It is also with this foundation that after the Naval University of Engineering came up with the design plan, the Machine Tool Research Institute quickly trial-produced the ring motor, and these blades were provided by Yonghan Aviation Power Technology Company.

However, this ring motor is a miniature version, and at this stage it is mainly used for various test tests in the laboratory, and it needs to be continuously improved.

Yang Jie looked at the shaftless pump pushing product in front of him with interest, and gently turned the paddles with his hands, and these paddles began to rotate, very smooth, without the slightest obstacle.

"This shaftless pump push sample has been tested for a period of time, what kind of problems have arisen?" Yang Jie asked Ma Weimin beside him.

"We have obtained a lot of test data, established a set of model algorithms, and found that the previous design of the propeller noise is too high, the propulsion efficiency is still low, we are designing a new propeller, and we have found that the sealing material has been corroded......"

Ma Weimin said.

"Well, in this regard, I will ask Huaxing Group to improve the sealing material as soon as possible. Yang Jie nodded.

He also knew that the United States had just had this concept of this shaftless pump thruster, but had not yet carried out technical research and development, and he did not expect Professor Ma Weimin to have this idea so early, and now it has entered the trial production and testing link.

The advantages of shaftless pump thrust technology are very numerous, and if it can be matured, it can significantly reduce the noise level of submarines.

At present, submarines still need to use diesel engine drive spindles to drive propellers to promote submarine maneuvers, although it is also said that the technology of floating raft shock absorption is also used to minimize vibration and noise, but it is impossible to completely offset it.

If you use the technology of shaftless pump pushing, you can cancel the main shaft and diesel engine and Stirling engine, and completely replace it with a fuel cell, which can greatly reduce the noise of the submarine and free up more space to improve the living space of the crew and add more weapons.

In addition, this technology can also be applied to torpedoes, so that the torpedo can be loaded with more batteries or zhà yào to improve the range and stronger lethality.

Of course, this technology can also be fully used on surface ships, and gradually enter the civilian market, which is a new technological revolution.

As early as more than a year ago, the navy purchased two sets of 5 megawatt fuel cells and 4 megawatt high-power motors from Huaxing Group to transform the conventional submarines in service, and they are being tested.

This year, the military top brass also hopes that Huaxing Group can develop a 150-megawatt fuel battery and a 30-megawatt high-power permanent magnet motor in advance, which the military has prepared for the Varyag.

Although it is necessary to develop such a high-power fuel cell power station and permanent magnet motor in the end, a few sets can not be sold, but this is the need of the country, and the machine tool research institute is not short of these research and development costs.