Great warships

Chapter 300 Solving the Warship’s Heart Problem

ice city.

Time has entered summer, the climate of Bingcheng is pleasant, not as hot and humid as in the south, it is definitely a good place to escape the heat.

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

"The scenery in the north and the south is different." Qin Tao said: "It is rainy in the south now, so there will be girls as gentle as water. The climate in the north is cold, and the rough northern men will be bred."

"President Qin, there are actually beautiful girls in the north, who are tall and have a good temperament." Zheng Ming, who accompanied him, 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 ​​provoking the confrontation between the north and the south, let alone the regional blackness. He just said casually that no matter the north or the south, it is our motherland. Different people have also bred different people with their own characteristics.

While talking, the car has already driven to the 703 Research Institute.

"On behalf of Institute 703, I welcome the naval leaders and President Qin!" The director of Institute 703, Zhang Jianguo, extended his hands enthusiastically.

"Old Zhang, we came here this time to see how well you have researched those materials." Zheng Ming said.

At the beginning, Qin Tao obtained a lot of materials from Ermao, and handed them all over to Institute 703. Although it was just some draft paper, after sorting them into categories, he could still get a lot of useful things.

"I know, you are here to ask for the results. Don't worry, we have already prepared the results. Our chief engineer will give you a detailed introduction." Zhang Jianguo said, turned his head and glanced: "Hey, where is Wengong?"

"Director Zhang, a steam turbine we just built had an accident during the [-]-hour test before delivery. Wengong went to the test site."

Wen Gong?

Qin Tao's eyes immediately brightened: "Is it Mr. Wen Xueyou?"

"President 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 not, we want to go there and join in the fun."

"Okay, I'll take you there."

Entering the test workshop, you can see that a group of people are surrounding a large steam turbine.

"It's really strange. The sound of this engine is a bit wrong. It maintains a stable speed without any noise. However, when the speed changes during the cycle, it will suddenly become very high, and then it will disappear all of a sudden."

"Yeah, the speed is pushed up, there is no noise, everything is fine."

"Shut down, then disassemble and inspect." Among these big men in the Northeast, a man with a slightly short stature said.

He was about 50 years old, but he looked good, and he wore glasses, and his wise eyes came from behind the lenses.

At this time, everyone was a little embarrassed when they heard his words.

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

"That is, if it is disassembled, the experiments we have done for more than 1000 hours will be wasted, and we have to do it again, which will cause a lot of waste."

"No, it must be disassembled and inspected. If it continues to operate, the entire machine may be destroyed in the event of an accident. The cost is too high."

Regardless of whether it is a steam turbine or a gas turbine, when it works, it is often tens of thousands of revolutions. At this speed, once something flies out and hits the blades, or the high-speed rotating blades fly out, then the machine will be destroyed. Lost.

"Let's discuss in groups."

Hearing Wen Gong's words, the general representative of the production factory present said: "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 the production is handed over to the corresponding production factory, following the model of the Soviet era. Now, after hearing what this person said, Qin Tao couldn't help but shake his head. This guy doesn't have the slightest Responsibility, when encountering problems, don't think about how to cooperate to solve them, but how to shirk responsibility, it's hard to be a master!

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

Hearing this sentence, Qin Tao couldn't help but sigh with emotion, those tactful people will not make any big mistakes, but they will definitely not achieve anything. If I want to be a real leader, I must have a sense of responsibility. Row.

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

Hearing is believing, seeing is believing, Qin Tao admired Wen Lao's actions with his own eyes, and Zheng Ming and others beside him were also very moved.

The steam turbine stopped, and the more than 1000 hours of testing was wasted. Just when everyone started to dismantle it, Wen Xueyou turned his head and saw a group of extra people.

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

Hearing what Wen Xue said, Qin Tao smiled: "Mr. Wen, we have seen everything you did just now. A responsible person like you will definitely become the leader in the field of gas turbine research and development in our country. After returning , I will recommend it to my superiors, and you will be the leader."

The glib guy just now had a slightly embarrassed expression on his face when he heard what Qin Tao said.

Wen is always responsible, what about him?He is a negative example of shirking blame when things happen and throwing blame ahead of time!

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

"Main bearing, this main bearing is cracked!" At this moment, someone shouted.

The cover of the upper half of the steam turbine has just been opened, and the cause of the fault has been found. There are cracks on the bearings. When the speed is changed, the bearings are subjected to additional impacts, and there will be noises!
"If it continues to run, the consequences will be disastrous!"

If the bearing is broken and flies, the ending is definitely beyond their imagination.

"That's right, we imported this bearing from abroad. We thought it would be very strong, but who would have thought that it would be defective!"

"Wen Gong is amazing!"

Wen Xue also showed a relaxed expression on his face: "Put on a new bearing, check it carefully, and if there is no problem, continue with the experiment."

After finishing speaking, he looked at Qin Tao: "President Qin, let's go to the meeting room, and I will report to you."

"No, no, it's too polite to report to me. I just came to hear about our research progress."

In the conference room, the atmosphere was harmonious.

"We have collected all the information by category, just like going through the old Maozi's gas turbine research and development path again." Wen Xueyou explained: "We have been greatly inspired and gained a lot of knowledge. Moreover, we have also summarized all the technologies of Lao Maozi's most advanced gas turbine, the GTD-15000."

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

According to Qin Tao's proposal, next, they will go to Ermao to buy gas turbine technology. If they already have it, they don't need to buy it. After all, the country is still too poor, and the navy has too many projects. Spending money like running water, he, the person in charge of equipment, will also feel distressed.

"Leader Zheng, you heard me clearly, it is summed up, not developed." Qin Tao glanced at Zheng Ming, how could it be so easy, he could fiddle with an advanced gas turbine just by relying on a pile of draft paper?Such a scene has only been seen in online novels.

Wen Xue nodded: "Yes, what we know so far is mainly the technology of aerodynamic design. Through those conversations, we have mastered these designs, including controllable vortex design, free vortex design, sweeping and twisting blade technology, multiple Arc airfoil, controllable diffusion airfoil, gap flow control and other technologies, these materials are just like teaching materials, taking us step by step and benefiting us a lot. In the past, our weak link, for example, compressed air Multi-stage adjustable vane technology, compressor boundary layer suction technology, flow stability passive and active control technology, etc., now have a solid theoretical foundation. However, with these theories, it does not mean that we can Create advanced gas turbines."

"Material problem?" Zheng Ming asked.

Wen Xue nodded: "Yes, the main problem is the material. Our supporting factory manufactures steam turbines. It only needs to withstand high temperature and high pressure steam. It is about a few hundred degrees, and the maximum is not more than one thousand degrees. However, using If a gas turbine is installed, the turbine blades at the back need to withstand high temperatures. Now, the international manufacturing process has developed from traditional investment casting to advanced directional crystallization and single crystal preparation technology, and the material for turbine blades has developed to equiaxed crystal casting. superalloys, directionally crystallized superalloys and single crystal superalloys.”

"Is there no 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 them by importing them from the old man need."

It's still the basic problem: the lifespan of an aero engine is only a few hundred hours, and the tens of thousands of hours for a marine gas turbine is not much, so it is absolutely impossible to import from the aviation industry.

The West has this kind of technology, but Lao Maozi can't do it. Therefore, Lao Maozi didn't engage in aero-modification, but used a specially developed gas turbine.

"There is also metal additive manufacturing technology, which is also the focus of this aspect. 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 our naval warships, right?"

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

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

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

Develop new technology yourself?This is a bit difficult, right?Zheng Ming secretly thought in his heart that it is already very good to be able to understand the technology on the draft paper now.

Qin Tao continued to put forward his own opinions there.

"Currently, the most advanced gas turbine in Lao Maozi is UGT15000, with a maximum power of only 20 megawatts, which is not very good in terms of power. Improve it, then the power of this modified engine will exceed 25 megawatts, which can better meet our needs. Two engines can propel a warship of six to seven thousand tons, and four engines can propel a warship of more than [-] tons. Battleship."

Of course, Qin Tao knows that the current UGT15000 is already the magic weapon for pressing the bottom of the box in Ermao. This gas turbine was developed in 71, successfully developed in 84, and mass-produced in 88. It is the most advanced gas turbine in Ermao.

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

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

Therefore, Ermao wanted to develop further 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 do a big job, the red empire collapsed.

Therefore, their modification plan was forced to stop, and it was not started until 95. If you look at the time schedule, you can know that it is just 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, but 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, the technology is provided, and it would be great if the two sides come to a technology exchange.

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

"How?"

"When we were summarizing the data, a batch of data did not match the numbers. Now we understand that those materials are designed by the old man who designed the zero-stage compressor. We have thoroughly understood the data. The old man took a detour. It is completely wrong to use the three-dimensional method to design the zero-stage compressor, we can use the computer simulation system to fiddle with the zero-stage!"

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

Wen Xue nodded: "That's right, thanks to these materials, Lao Maozi's mathematical skills are not built-in, that's called a cow, we found the law in these materials, and established a computer simulation system."

"Well, if this is the case, then get out the design materials as soon as possible. With this material, let's go find Lao Maozi!"

"En." Wen Xue nodded.

"At present, the development direction of gas turbines is to increase power and thermal efficiency and reduce fuel consumption." Qin Tao continued: "The existing simple cycle gas turbines have developed to a limit. To further improve these indicators, it is necessary to use advanced complex cycle, such as intercooling, reheating, steam reinjection, etc., if we have pre-research in this area, we can take it with us and go fool the old man together."

Wen Xueyou's eyes widened: "Boss Qin, aren't you too good? You know everything!"

"Boss Qin is so powerful. Only after following him for a long time can he know how strong he is." Zheng Ming said from the side.

At sea, the incident on the Xingchen continued to ferment, attracting the attention of the whole world and making countless Chinese people feel indignant. The superior leaders made up their minds, even if it was a waste of money, they had to develop the navy!

The navy's heart disease problem must also be solved!

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

Nikolayev, Sugon-Machine Design, Research and Production Complex.

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

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

abjection?

Yes, of course it was down and out.

During the period of the Red Empire, although supplies were in short supply, wages could still be paid anyway, but now, they can't 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.

Damao, what kind of shock therapy is being used? Although inflation is severe, at least the wages can still be paid in full when the printing presses are turned on.

What about Ermao?
The economy is also deteriorating, wages cannot be paid, and the money printing machine does not dare to run wildly. The situation on their side is even more not 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 life will be easier.

"This time, things are really different. Last time it was called the Southern Steam Turbine Factory. Now, it has become the Shuguang Consortium." Qin Tao continued.

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

Zheng Ming walked beside Qin Tao, and he was willing to be his deputy. At this time, acquaintances are easy to handle, and he is also happy to be at leisure.

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 a ship power engineer, he was very excited to come here to have a look.

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

A bottle of Erguotou appeared in front of everyone.

"Everyone, this is a gift from me. Let's drink and talk. Come on, everyone, take a bottle first. By the way, there are peanuts!"

Does this sound like a word?

Drinking in someone's conference room?Is this going to mess things up here?

Just look at the old Maozi's eyes. They took the wine bottle almost without any hesitation, and before they even had time to get the bottle opener, they started blowing at each other.

Peanuts?What kind of peanuts do you want, take a big sip first, and then talk about it when you are satisfied.

"Qin, every time you send us a gift, it's always so thoughtful." Popov said.

The first time Qin Tao came over, he sent a large number of calculators. Until now, those calculators are still the favorite of the scientific researchers here. They always have calculators in their pockets, and they can use them at any time. .

The second time, they were brought wine!
How many days have they gone without drinking?

It's good to fill your stomach, who would be willing to spend money on wine?

"We brought quite a lot this time. Next, we will distribute a box to each person. Now, let's drink this bottle first. After drinking, we will talk again."

It's not that Qin Tao is stingy with wine, but he is afraid that if he drinks too much, these old men will pour out, how can they negotiate?

A bottle to moisten the throat is enough.

"Come on, eat a few 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 matter of the Xingchen. Without a strong navy, it will suffer 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. The gas turbine is gone, so, order 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 taken aback, didn't they come to order gas turbines?

"Currently, your most advanced gas turbine is UGT15000. The maximum output power of this gas turbine is only 20 megawatts, which cannot meet our needs. At least 25 megawatts, or even 30 megawatts, is 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. Hearing what Popov said, Sergey put down the bottle, hiccupped comfortably, and then spoke.

"Currently, we plan to add zero stages to the compressor on the basis of the UGT15000 gas turbine, and at the same time, increase the inlet temperature of the gas turbine turbine to 1250 degrees, so that 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 aeroengines. In this era of aeroengines, the turbine temperature has already exceeded 1000 degrees, and even advanced ones have begun to sprint to [-] degrees. The temperature of gas turbines is only [-] and more than two hundred degrees, the materials that can withstand this high temperature have matured long ago, and the lifespan will be greatly improved.)
"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)