Chapter 301: Solving the heart problem of warships

 Ice city.

 It has entered summer, and the climate in Ice City is pleasant, not as hot and humid as in the south. It is definitely a good place to escape the summer heat.

Qin Tao looked at the scene outside the car window with great interest.

"The scenery in the north and the south are different." Qin Tao said: "It is rainy and rainy in the south now, so there are girls who are as gentle as water. In the north, the climate is cold, and those in the north are rugged northern men."

"Mr. Qin, in fact, there are beautiful girls in the north, who are tall and have good temperament." Zheng Ming, who accompanied him here, said, "Isn't your wife a girl from the north?"

"Yes, that's right, you're right." Qin Tao didn't have the idea of ​​inciting conflict between the north and the south, and he didn't have any geographical instigation. He just said casually that no matter the north or the south, we are our motherland. The motherland has a vast territory, a large population, and beautiful scenery everywhere. Differences also give birth to people with different characteristics.

 While he was talking, the car had already driven to the 703 Research Institute.

“On behalf of our 703 institute, I welcome the navy leaders and General Manager Qin to come!” Zhang Jianguo, director of the 703 institute, extended his hands enthusiastically.

“Old Zhang, we came here this time to see how well you have studied the information.” Zheng Ming said.

At the beginning, Qin Tao got a lot of information from Er Mao and handed it all to the 703 Institute. Although it was just some draft paper, after sorting it into categories, he could still get a lot of useful things.

"I know, you are here to get the results. Don't worry, we have already prepared the results. Our chief engineer will give you a detailed introduction." Zhang Jianguo said, turning his head and looking at it: "Hey, where is Wen Gong?"

“Director Zhang, something happened to the steam turbine we just built during the three thousand hours of testing before delivery. Wen Gong went to the testing site.”

 Hong Kong?

Qin Tao's eyes suddenly lit up: "Is it Mr. Wen Xueyou?"

“Mr. Qin, do you still know the name of our Wen Gong?”

Qin Tao smiled: "Of course I know. By the way, is the test site far away? If it's not far, we want to go there and join in the fun."

 “Okay, I’ll take you there.”

 When you enter the test workshop, you can see a group of people surrounding a large steam turbine.

“It’s really weird. There is something wrong with the sound of this engine. It maintains a stable speed without any noise. However, when the cycle is pulled, as long as the speed changes, it will be very high for a while, and then it will disappear again.”

“Yes, when the speed is pushed up, there is no noise at all, everything is fine.”

“Stop the machine and then disassemble it for inspection.” Among these Northeastern men, a slightly shorter man said.

He is about fifty years old, but has a good complexion. He wears glasses, and his wise eyes shine through from behind the lenses.

At this time, everyone was a little embarrassed after hearing his words.

"Wen Gong, after pushing it up, the power is still good, which means it is running normally."

“That is, if it is dismantled, then the more than a thousand hours of experiments we have done will be in vain, and we will have to do it again, which will cause a lot of waste.”

"No, it must be dismantled and inspected. If it continues to operate, if something goes wrong, the entire machine may be destroyed, and the cost will be too high."

Whether it is a steam turbine or a gas turbine, it often operates at tens of thousands of revolutions. At this speed, once something flies out and hits the blades, or the blades rotating at high speed fly out, the machine will be destroyed. Lost.

 “Let’s discuss in groups.”

After hearing what Wen Gong said, the general representative of the production plant present spoke: "We have come to a conclusion, two sentences: everything depends on the chief designer, and all responsibilities are borne by the chief designer."

Institute 703 is a design institute, responsible for technology, and production is handed over to the corresponding production factory. It still follows the Soviet-era model. Now, after hearing this person's words, Qin Tao couldn't help but shake his head. This guy has no trace of anything. Take responsibility. When encountering a problem, you don't think about how to cooperate to solve it, but think about how to shirk responsibility. It's hard to achieve success!

"Okay, I agree." Wen Xueyou nodded without any hesitation: "If my judgment is wrong, I will be responsible. Now, stop the machine and dismantle it!"

After hearing this, Qin Tao couldn't help but sigh. Those smooth people will not make any big mistakes, but they will never achieve anything. If I want to be a real leader, I must be responsible. OK.

 Lao Wen was able to become a project developer of domestic gas turbines because he has this responsibility in his heart!

Hearing is believing, seeing is believing. Qin Tao admired Wen Lao's actions when he saw it with his own eyes. Zheng Ming and others on the side were also very moved.

The steam turbine stopped, and more than a thousand hours of testing were in vain. Just when everyone started to dismantle it, Wen Xue Youcai turned around and saw an extra group of people.

"This person next to Lao Zheng is Mr. Qin, right? I'm sorry, there was an accident here suddenly. I had to come over quickly to deal with it. I didn't go to greet him. I hope you can forgive me."

After hearing what Wen Xueyou said, Qin Tao smiled: "Mr. Wen, we have seen everything you have done just now. A responsible person like you will definitely become the top leader in the field of gas turbine development in our country. After you go back , I will recommend to my superiors that you be the leader."

The guy who was glib just now looked a little embarrassed when he heard what Qin Tao said.

 Wen Lao is a responsible person, what about him? He is a typical example of someone who shirks the blame and dumps the blame in advance when something happens!

"Our country must have its own advanced heavy-duty gas turbine. This matter cannot be delayed any longer. It would be best for our country to embark on this project." Wen Xueyou said: "Since we got those waste Paper, we carefully sorted it into categories. We gained a lot, and at the same time, we also had new ideas..."

“Main bearing, this main bearing has cracks!” At this moment, someone shouted.

The cover on the upper half of the steam turbine had just been opened, and the cause of the failure was found. There were cracks in the bearings. During the speed change, the bearings received additional impact and made noise!

 “If it continues to operate, the consequences will be disastrous!”

 If the bearing breaks or flies off, the outcome will be unimaginable.

“That’s right, we imported this bearing from abroad. We originally thought it would be very strong, but who would have thought that it would actually be defective!”

 “The workmanship is really amazing!”

Wen Xueyou also had a relaxed expression on his face: "Put on a new bearing and check it carefully. If there is no problem, continue the experiment."

 After speaking, he looked at Qin Tao: "Mr. Qin, let's go to the conference room. I will give you a report."

“No, no, it’s too polite to give me a report. I’m just here to hear about the progress of our research.”

 The atmosphere in the conference room was harmonious.

"We summarized all the information into categories, and it was like going through Lao Maozi's gas turbine research and development path again." Wen Xueyou explained: "We were greatly inspired and gained a lot of insights. knowledge, and we have also summarized all the technologies of Laomaozi’s most advanced gas turbine, GTD-15000.”

Zheng Ming opened his eyes wide: "In other words, we have this kind of technology ourselves? Great, if we have these technologies, we don't have to spend money."

According to Qin Tao's suggestion, they will go to Ermao to buy gas turbine technology. If they already have it, there is no need to buy it. After all, the country is still too poor and the navy has too many projects. Spending money is like running water, and he, the person in charge of equipment, will also feel distressed.

“Leader Zheng, you heard clearly, it was summarized, not developed.” Qin Tao glanced at Zheng Ming, how could it be so easy for him to fiddle with an advanced gas turbine with just a pile of scratch paper? Scenes like this have only been seen in online novels.

Wen Xue nodded: "Yes, what we know so far is mainly aerodynamic design technology. After those conversations, we have mastered these designs, including controllable vortex design, free vortex design, swept curved and twisted blade technology, and multiple Arc blades, controllable diffusion blades, gap flow control and other technologies, these materials are almost like textbooks, taking us step by step, and benefiting us a lot. In the past, our weak links, such as air pressure, Multi-stage adjustable blade technology, compressor boundary layer suction technology, flow stability passive and active control technology, etc., now have a solid theoretical foundation. However, having these theories does not mean that we can Make advanced gas turbines.”

“Is it a matter of materials?” Zheng Ming asked.

Wen Xue nodded a little: "Yes, the main problem is the material. Our supporting factory is to manufacture steam turbines. It only needs to withstand high temperature and high pressure steam, which is probably a few hundred degrees, and the highest is no more than a thousand degrees. However, with For gas turbines, the rear turbine blades need to withstand high temperatures. Now, the international manufacturing process has developed from traditional investment casting to advanced directional crystallization and single crystal preparation processes, and the turbine blade materials have developed to equiaxed crystal casting. Superalloys, directional crystallization superalloys and single crystal superalloys.”

“Isn’t there any research in our aviation department?”

"There is indeed research in this area, but the lifespan of the turbine blades they manufactured is only about a few hundred hours, which is very different from the long life we ​​need. We can only meet the requirements by introducing them from Lao Maozi. need."

 The basic issue is still the same: the lifespan of an aero engine is only a few hundred hours, while a marine gas turbine is only a few tens of thousands of hours. Therefore, it is absolutely impossible to introduce it from the aviation industry.

 The West has this technology, but Lao Maozi cannot. Therefore, Lao Maozi does not develop aeroderivatives, but uses specially developed gas turbines.

“There is also metal additive manufacturing technology, which is also a focus in this area. We hope to solve these problems from Lao Maozi.” Wen Xueyou continued to introduce.

Qin Tao nodded: "With these technologies, we can develop our own heavy-duty gas turbines and equip them for our naval warships, right?"

“I guarantee that as long as these technologies can be introduced, we will be able to ignite and test the heavy-duty gas turbine we made within a year!”

At this time, Wen Xueyou was extremely excited. They were finally transitioning to gas turbines. In the future, they would have advanced gas turbine design and manufacturing technology, and the heart disease problem of the motherland's warships would also be solved!

“So, have we developed any new technologies?” Qin Tao asked.

 Develop new technology yourself? Isn't this a bit overwhelming? Zheng Ming secretly thought in his heart that it was already very good to be able to understand the techniques on those draft papers.

Qin Tao continued to put forward his own opinions there.

"Currently, Lao Maozi's most advanced gas turbine is the UGT15000. The maximum power is only 20 megawatts, and the power is not outstanding. If you can add a zero-stage compressor to the front, increase the total boost ratio, and then increase the turbine temperature. If we improve it a bit, then the power of this modified engine will exceed 25 megawatts, which can better meet our needs. Two units can push a warship of six to seven thousand tons, and four units can push a battleship of more than 10,000 tons. Battleship.”

Of course Qin Tao knows that the current UGT15000 is already the magic weapon for Ermao to keep the bottom of the box. This gas turbine was developed in 1971, successfully developed in 1984, and started mass production in 1988. It is the most advanced gas turbine in Ermao.

 Compared with the previous generation gas turbine, its turbine inlet temperature has increased by more than 200 degrees, and the boost ratio has nearly doubled. Thermal efficiency and fuel consumption have been greatly improved.

 However, in terms of total power, it is still insufficient.

 So, Ermao wanted to further develop on the basis of this engine, which was naturally the famous UGT25000. However, just when the technicians of the Southern Steam Turbine Factory were about to start a big fight, the Red Empire collapsed.

 So, their change plan was forced to stop, and it was not started until 1995. If you look at this time schedule, you can know that it happened to be at the time of contact with the East.

Now, Qin Tao is going to lead a group of people to formally contact the other party. However, the motherland is too poor. If there is a way to do it without spending money, that would be the best.

 It doesn’t cost money, of course it provides technology. It would be great if both parties exchange technology.

"Increase the zero stage and increase the turbine temperature?" Wen Xue was thinking rapidly, and suddenly thought of something: "So that's it, that's it!"

 “Which kind?”

"When we were summarizing the data, there was a batch of data that didn't match up. Now we understand that those data are from Lao Maozi who was designing the zero-stage compressor. We have thoroughly understood all the data, and Lao Maozi took a detour. It is completely wrong to use the three-dimensional method to design a zero-stage compressor. We can use the computer simulation system to create the zero-stage compressor!"

“Do we already have such a system?” Qin Tao asked.

Wen Xue nodded: "That's right, thanks to these data, Lao Maozi's mathematical skills are nothing short of impressive. We found patterns in these data and established a computer simulation system."

“Well, in that case, let’s get the design data out as soon as possible. With this data, let’s go find Lao Maozi!”

 “Yeah.” Wen Xue nodded.

"At present, the development direction of gas turbines is to improve power and thermal efficiency and reduce fuel consumption." Qin Tao continued: "The existing simple cycle gas turbines have reached a limit. If you want to further improve these indicators, you need to use advanced Complex cycles, such as intercooling, reheating, steam reinjection, etc. If we have preliminary research in this area, we can bring it with us to fool the old man."

Wen Xueyou opened her eyes wide: "Mr. Qin, are you too awesome? You know everything!"

"Mr. Qin is so powerful. Only by following him for a long time can you know how strong he is." Zheng Ming said at the side.

At sea, the Star incident continues to ferment, attracting the attention of the world and making countless people feel indignant. The superior leaders have made up their minds to develop the navy even if they are trying to sell iron!

 The problem of heart disease in the navy must also be solved!

 In this way, a group of people set off from Bingcheng and headed for Ermao's land.

  Nikolayev City, Shuguang-Machine Design Research and Production Complex.

"Mr. Popov, we meet again." When he saw the person in charge, Popov, Qin Tao stretched out his hand and shook it enthusiastically.

Popov is also full of emotions. The last time we met, it was during the great Red Empire, and now we meet, it is already the downtrodden Ermao period.

 Down and out?

 That’s right, of course it’s very depressing.

During the Red Empire, although materials were in short supply, wages could still be paid, but now, they can no longer pay wages at all!

 When was the last time you were paid? Three months ago, or six months ago? What is paid is not salary, but living expenses.

 What kind of shock therapy is being carried out by Mao? Although inflation is severe, at least if the printing press is turned on, wages can still be paid in full.

 Where is Ermao?

The economy is also deteriorating, wages cannot be paid, and the money printing press does not dare to run like crazy. On their side, the situation is even less optimistic.

It is precisely because of this that Popov attaches great importance to Qin Tao's arrival. If they can get some funds from this delegation, their lives will be easier.

“This time, things have really changed. Last time it was called Southern Steam Turbine Factory, and now it has become Shuguang Consortium.” Qin Tao continued.

"Yes, under the current circumstances, we can only find a way out through reform. Everyone, please come to our conference room."

Zheng Ming walked beside Qin Tao, willing to be his deputy. At this time, acquaintances were easy to do, and he was happy to be free.

Wen Xueyou was very excited. This is Lao Maozi's gas turbine development and production base. Over the past few decades, half of the world's gas turbines have been produced here! As someone who works on warship power, he was very excited to come here to see it.

The door of the conference room was closed, and Qin Tao waved to the people behind him. Then, those people put the boxes they were holding on the table and opened them.

 Bottles of Erguotou appeared in front of everyone.

“Everyone, this is the gift I brought. Let’s drink and chat. Come on, don’t be polite. Everyone will take a bottle first. By the way, there are also peanuts!”

 Is this nonsense?

 Drinking in someone else’s conference room? Will this make a mess here?

You can tell by looking at Lao Maozi's eyes. They took the wine bottle almost without hesitation. They didn't even have time to pick up the bottle opener and started blowing to each other's mouths.

Peanuts? If you want some peanuts, take a big sip first and wait until you're satisfied.

“Qin, every time you give us a gift, you are always so considerate.” Popov said.

The first time Qin Tao came over, he brought a large number of calculators. To this day, those calculators are still the favorites of their scientific researchers. They always have calculators in their pockets and can use them at any time. .

 The second time, I brought them wine!

 How many days has it been since they drank?

It’s good if it can fill your stomach. Who would be willing to spend money on wine?

“We have brought a lot this time. Next, we will give each person a box. Now, let’s drink this bottle first. After finishing it, we will chat later.”

Qin Tao is not stingy about drinking, but he is afraid that if he drinks too much, these old men will fall down. How can he negotiate?

One bottle is enough to moisten your throat.

 “Here, eat some peanuts, don’t just drink.”

 The smell of wine was overflowing, and the atmosphere in the entire conference room had become quite friendly.

"Qin, we already know about the Star. Without a strong navy, you will be frustrated internationally. If you want to have a strong navy, you need advanced power. It is no longer possible for you to continue to obtain LM2500 from the United States. We have gas turbines, so you should order them from us!" Popov looked at Qin Tao and said seriously: "How about ordering ten units first? Don't worry, we will definitely give you the lowest price."

Qin Tao shook his head.

Popov was stunned. Aren’t they here to order gas turbines?

“Currently, your most advanced gas turbine is the UGT15000. The maximum output power of this gas turbine is only 20 megawatts, which cannot meet our needs. It needs at least 25 megawatts, or even 30 megawatts, to be enough for our warships.”

 Popov frowned.

“Qin, we are currently developing a gas turbine of this level, but... there is nothing to hide from our good friend, Sergey, it’s up to you.”

At this time, Sergey was still blowing on the bottle, enjoying himself very much. After hearing Popov's words, Sergey put down the bottle, burped comfortably, and then spoke.

“Currently, we plan to add a zero stage to the compressor based on the UGT15000 gas turbine, and at the same time, increase the gas turbine turbine inlet temperature to 1250 degrees. In this way, the power output is scheduled to be 26.7 megawatts, but..."

(This is also the reason why the service life of gas turbines is much longer than that of aero engines. The turbine temperature of aero engines in this era has long exceeded 1,400 degrees, and even advanced ones have begun to sprint to 1,780 degrees. The temperature of the gas turbine has only At more than 1,200 degrees, materials that can withstand such high temperatures have long since matured, and their lifespan will be greatly extended.)

“Well, we have some research and development experience here, Wen Gong, please introduce it to our colleagues.”

 Next, it’s Wen Xueyou’s turn to perform professionally!

 (End of this chapter)