Military Heavy

Chapter 247 Chapter 240 IX Surveying and Mapping Imitation
Yang Fan was pleasantly surprised!

I know that Xihang Group has a dedicated gas turbine branch, but I don't know when it was established. I think it was not established until the middle and late 90s.

It was established last year!

Many things are much easier for a professional gas turbine company, such as the mapping and imitation of some parts of the LM2500 gas turbine, such as the localization of future naval gas turbines, etc. After all, they are professional.

If you are in a good mood, you can chat more speculatively.

Liu Hui also gradually discovered that Yang Fan has a high level of technology and knows a lot about gas turbines, such as the structure and principle very clearly, and even has a good understanding of the current situation of foreign gas turbines.

It's amazing!

As Yang Fan introduced, the Soviet Union's UGT-15000 gas turbine.

Liu Hui is engaged in gas turbines and has a certain understanding of some foreign gas turbines, but he found that his understanding of UGT-15000 gas turbines seems to be inferior to that of Yang Fan.

This is an insider!

Absolute connoisseur!
This is Liu Hui's evaluation of Yang Fan. It's hard to meet a confidant. The two gradually became more sympathetic to each other, and the conversation became more devoted.

Liu Hui learned more about the UGT-15000 gas turbine from Yang Fan, and he also introduced their current gas turbine.

That is a small and medium-sized gas turbine with more than 3000 kilowatts.

Developed with an aero engine as the core engine, mainly for power generation.

Yang Fan thought in his heart that more than 3000 kilowatts is indeed a little small for ordinary ships.In addition to regret, there is also a little joy.

West Air Group can develop gas turbines for power generation, at least have a certain technical foundation, surveying and mapping some relatively simple parts of LM2500 gas turbines, the possibility of success is greatly increased.

The two talked for over an hour.

Liu Hui said: "The purpose of our visit this time is very simple. In addition to chatting with you, we also want to take a look at the LM2500 gas turbine. The headquarters has given us a task, requiring us to map and copy some of them for comparison. Simple parts."

This was also the suggestion made by Yang Fan at the beginning.

Since the suggestion was made by himself, Yang Fan said in a big way: "The two official gas turbines and one prototype are all in Donghai Shipyard. I will take you there."

"That's great!"

Liu Hui was very happy. At first, he was worried that he was not familiar with Donghai Shipyard. He thought which leader should he contact. It would be best if Assistant General Manager Yang took him there.

He knew that, as the design unit of the 052 ship, the Donghai Ship Design Institute and the Donghai Shipyard as the construction unit must be closely related, and the high-level officials are probably very familiar with each other.

Yang Fan took the lead, and everyone happily left the office, chatting and laughing as they left the big office building.In front of this building, a large JEEP off-road vehicle was parked.

Yang Fan opened the car door and invited them to get in the car.

After everyone was seated, they drove in person, left slowly, and soon left the Donghai Shipyard and headed for the Donghai Shipyard.

Sitting in the car, Liu Hui said enviously: "As expected of a unit in Donghai City, your unit's cars are really high-grade. Assistant President Yang, you are all imported big off-road vehicles."

Yang Fan smiled, knowing that he had misunderstood.

Proudly said, "This is not our unit's car, but my personal car."

what!
Your personal car!

Don't lie to me, this is an imported car, and you can't afford it after more than ten years of work.

Yang Fan saw the surprised expressions of Liu Hui and others from the mirror, and smiled again, without explaining too much, and concentrated on driving.

Gradually, Liu Hui knew that this should be true, and he couldn't help but look at Yang Fan incredulously, thinking in his heart, it's amazing, it's amazing that I have such a good car!
For Donghai Shipyard, Yang Fan is familiar with the way.

The guards at the gate of the factory were also very familiar with this car. When they saw the car approaching, they opened the door and let it pass. They omitted all questions about registration.

Soon they arrived at the entrance of the office building of Donghai Shipyard. After parking the car, Yang Fan led the three of them directly into Chen Shaohua's office.

After listening to the introduction, he knew that the other party was from Xihang Group, who came here for the surveying and imitation of LM2500 gas turbine parts. Chen Shaohua was very enthusiastic.

Of course, also very happy!
He knew that once the mapping and imitation were successful, the gas turbines on the 052 ship would have spare parts, so there was no need to worry about future maintenance and repairs, as there were parts that could be replaced.

After chatting with each other for a while, Liu Hui proposed to take a look at the LM2500 gas turbine, and Chen Shaohua readily agreed.

A group of people walked into the storage warehouse and saw the two LM2500 gas turbines that had been unpacked. Liu Hui and the other three looked at the two gas turbines with great interest for a long time.

Yang Fan reminded: "There is also a prototype, which is mainly used for training and experimentation. Would you like to take a look?"

"of course."

Liu Hui said: "Of course I have to take a look. It would be even better if I could take a look at its working conditions."

For this gas turbine, Donghai Shipyard has prepared a separate workshop with an area of ​​several hundred square meters. On the platform in the center of the workshop is the gas turbine.

After looking at it for a while, the gas turbine started, and Liu Hui and others looked at its working condition.

The next day.

Everyone sat together and began to discuss the surveying and imitation of parts. As a representative of design, Yang Fan proposed that it should be simple first and then difficult.

First manufacture simple parts that are relatively easy to map and imitate, especially those simple parts that are replaced frequently.

As an expert in gas turbines, Liu Hui is very clear about which parts need to be replaced frequently, and of course, Yang Fan also has a better understanding.

After some discussion, the list of the first batch of imitation and surveying and mapping parts was determined, and Xihang Group will undertake the task of surveying, mapping and imitation.

After these discussions, Liu Hui made a request to transport the prototype back to Xihang Group for dismantling, surveying and mapping, analysis and other work.

Chen Shaohua was very embarrassed by this request.

Yang Fan proposed to report to the general headquarters, and the general headquarters will make a decision.

To be honest, Yang Fan is very much in favor of shipping this prototype to Xihang Group, where it will play a far greater role than putting it in Donghai Shipyard.

Its main positioning is training and testing. After so many years in Donghai Shipyard, the training and testing that should be done have basically been completed.

In order to imitate and map its components, it is completely possible to disassemble it, conduct research on certain parts, conduct mapping, and then carry out imitation.

Yang Fan even thought hopefully, it would be great if he could map and imitate its turbine blades, but this may be a bit extravagant.

The airfoil shape of the turbine blade is complex, and the material requirements are extremely strict. Even if there is a real blade, it is extremely difficult to imitate it.

But once it can be imitated successfully, it can solve the big problems in the future.

Because the turbine blades have a service life, they need to be replaced after a certain period of time. During overhaul, if some ablated or corroded blades are found, they also need to be replaced.

In the case of the cut-off of supply by the Americans, we have no blades to replace. Once the blades need to be replaced, it will be troublesome. The LM2500 gas turbine may not be able to continue to be used because there are no blades to replace.

This is why experts are worried that using the third and fourth gas turbines on the No. 2 ship is extremely risky.

It is also the reason why some experts proposed that the third and fourth gas turbines should not be installed on the ship, but used as spare parts, and the above parts will be disassembled to supply the first and second gas turbines in the future.

As for this prototype, the parts on it cannot be disassembled for the official gas turbine, because the life and quality level of its parts are not the same as those of the official machine.

For example, many parts have been used to the end of their service life, or are close to their service life, and there are no quality problems in appearance and size, so they are installed on the prototype.

Donghai Shipyard quickly made a long-distance call to ask the general headquarters whether the prototype could be shipped back to Xihang Group, and they would disassemble, research, survey and map the prototype and imitate some parts.

There was an answer soon.

Commander-in-Chief Huang Keping made the final decision in person, agreeing to the request of the West Air Group. Not long after, the prototype began to be decorated and hoisted, ready to be transported back to the West Air Group.

Watching the prototype being hoisted onto the big truck, the packing box fixed, and ready to leave the Donghai Shipyard, Yang Fan felt happy.

With this prototype, Xihang Group will gradually have a certain foundation in marine gas turbines, and their technical strength will definitely gradually improve.

After sending Liu Hui and others away, Yang Fan devoted himself to the design and development of the missile vertical launch system.

Today is the weekend.

Yang Fan's family of three was driven by Yang Fan back to his father-in-law's house.

Yang Fan and Jiang Yan came back with their children. Jiang Dahai was very happy, and went to buy a few catties of meat, a big grass carp, and other good dishes.

Li Xiuzhen even caught and killed one of the chickens she was feeding, and stewed a pot full of it in a casserole.

Yang Hao was able to run all over the place, and when he returned to his grandparents' house, he was very happy, lively and cute, which made Jiang Dahai so happy that he couldn't close his mouth from ear to ear.

The aunt Jiang Dan also likes Yang Hao very much, so she took the little guy outside to play.

Yang Fan and Jiang Dahai were chatting, while Jiang Yan was listening with a smile on his face.

Jiang Dahai talked about one thing, "There is one thing, you two can help me refer to it, the old Zhang's family next door is going to move out, his son has allocated a big house in the work unit, and he is going to sell the house here, he found I asked me several times if I could buy it."

Yang Fan and Jiang Yan are very familiar with the house next door.

It is almost next to Jiang Dahai's house. The house is a bit old, but the place is big. An old house and the yard behind it are at least [-] to [-] square meters.

Immediately, Yang Fan became interested.

And such a good thing!

Uncle Zhang next door actually approached his father-in-law several times, wanting his father-in-law to buy his house. You know, this is Donghai City!

In another three to five years, real estate will gradually rise. With the opening up of real estate and the development of the city, this will be an absolute central city. By that time, every inch of land here will be worth a fortune!
Today is the third update, and the second update will be delivered.

(End of this chapter)