Warship of Great Power

"When we designed the program, we had taken into account the elastic retraction of the steel plate, so we designed a certain processing allowance, and also studied a lot of steel parameters, and refined these parameters according to the differences of each steel plate." Hu Yong's face was also very excited: "Now it seems that our design is very perfect."

"Well, not bad." Qin Tao is also very satisfied. This is only the first experiment, and such satisfactory results have been achieved, which shows that after these years of hard work, the experience of our own CNC designers has become more and more abundant. up.

There are already independent multi-axis linkage CNC machine tools in China, and now this kind of bending machine has also begun to enter the era of CNC!

"This is definitely a revolution in our shipbuilding industry!" Zhao Changshui also sighed there. Although he has already become the director of the machinery factory here, he was born in shipbuilding after all. At this time, Zhao Changshui is more optimistic about this machine.

Qin Tao nodded, and then said: "That's right, it is a revolution in the shipbuilding industry. However, this kind of machine has just been developed, and there must still be many imperfections. After the successful experiment of this prototype, we will first build a A large plate bending machine with an ordinary steel plate area was placed in our Mingzhou Shipyard, and after repeated use, various problems were reported and then modified.”

Zhao Changshui nodded: "Okay."

This is the only way for a new machine. It must be tested first, and all possible problems must be solved. Of course, he does not know that Qin Tao has another meaning for saying this.

"At the same time, our project must be highly confidential, and we cannot disclose any secrets."

With every innovation in technology, there will be winners and some will be eliminated.

The bending machine invented by Mingzhou Group will greatly increase the speed of shipbuilding, reduce the cost of shipbuilding, and gain an advantage in the competition. At the same time, such a bending machine will also arouse the covetousness of many peers.

Other shipyards also want to improve the efficiency of bending plates and free themselves from heavy manual labor. However, they have no idea and cannot manufacture similar products. Now that they have already built them, they have to guard against being copied by them. past.

So, for the first few years, keep it secret!

Even the brother factories cannot obtain this kind of product. This is an important product that Mingzhou Shipyard has sold all over the world. After a few years, it will not be too late to promote it to the brothers. try out!

This reason is also very sufficient, and others can't say anything.

"President Qin, we can stay in Mingzhou permanently. If there is any problem, we will deal with it as soon as possible." Hu Yong also began to express his opinion.

"This should not be used. If there is a problem, we will contact you. Now that this bending machine has been successful, you should make persistent efforts and continue to build more advanced shipbuilding equipment."

Continue to make persistent efforts?

Hu Yong's eyes lit up: "President Qin, please speak!"

"Our domestic CNC shipbuilding equipment still lacks professional plate rolling machines." Qin Tao introduced: "Next, we need to overcome the technical difficulties of the three-roll plate rolling machine. This type of plate rolling machine must be wide-body. It can process steel plates with a width of more than five meters, and roll this steel plate out of a steel cylinder.”

Three-roll plate rolling machine!

This is the equipment that Mingzhou Shipyard and even domestic shipyards still lack. It is dedicated to special planes, and it is used to build submarines!

If you want a submarine to dive into deep water, you need high-strength steel plates that are rolled directly into a cylinder. Therefore, it requires a lot of pressure. For example, in later generations, the largest three-roller plate rolling machine At that time, the pressure was as high as 8160 tons!

The greater the pressure of this type of plate rolling machine, the stronger the steel plate that can be processed, and the larger the diameter of the processed plate.

Domestic submarines can only be built to a few thousand tons, because the plate rolling machine is not powerful and the diameter of the processing is too small. Although Lao Maozi’s submarine has an underwater displacement of tens of thousands of tons, it uses a double-hull structure. The pressure-resistant shell inside It's not that big, it's because their plate rolling machine is not powerful.

At present, the most advanced technology of plate rolling machines in the world is in Sweden, and other countries manufacture submarines, all of which import plate rolling machines from Sweden.

The Kangaroo Country also wants to build submarines, but they don’t have this kind of plate rolling machine, so they directly transported the rolled steel cylinders from the United States. As a result, something went wrong during the transportation, and a few of them were scrapped. Unable to meet the design target, this thing, the error cannot exceed two millimeters!

A new generation of nuclear submarines is being built in China, and the nuclear submarines designed by Mingzhou Group are even more cross-generational. Relying on the current second-hand plate rolling machine obtained from Lao Maozi, only conventional submarines such as the Kilo class can be built, and it is impossible to build nuclear submarines with a larger displacement.

Therefore, after the bending machine is available, the next difficulty to overcome is the bending machine!

"President Qin, are there any technical requirements?" Hu Yong asked.

"The maximum pressure of this three-roll plate bending machine must exceed 8,000 tons, and the diameter of the processed steel cylinder must reach a maximum of 13.5 meters."

Hu Yong nodded, as if he knew something: "In this way, we can build a submarine with a displacement of 20,000 tons, and we don't need a turtle back."

The displacement of attack nuclear submarines is not very large, and rarely exceeds 10,000 tons. However, ballistic missile nuclear submarines are different. In order to be able to carry a large number of missiles, the displacement of such submarines will expand rapidly.

If the displacement is large, the casing needs to be large, and if the casing is large, the diameter must be large. What should I do with a plate bending machine that is not so big?

Then be a turtle.

The appearance of the turtle back was a helpless choice for the early ballistic missile nuclear submarines. The ballistic missiles to be launched were large in size and long in length, exceeding the diameter of the pressure hull. There was no other way but to protrude.

The Yankee's Ohio-class nuclear submarine has a very small turtle back, almost invisible, and it is perfectly integrated with the submarine's hull, which is the result of its underwater displacement of 18,000 tons.

What about domestic?

Although the third design office of Mingzhou Group has only designed nuclear-powered attack submarines so far, of course, ballistic missile nuclear submarines will also have to be involved in the future, so the displacement will definitely increase, and the corresponding plate rolling machine must also be available. Even if it costs billions, it is necessary to manufacture this kind of important weapon of the country!

It was already noon after the inspection of the plate bending machine project was completed. After eating in the machinery factory, Qin Tao did not leave, and then inspected the progress of the lift fan.

This project is directly related to the J-31A project, and Qin Tao attaches great importance to it.

Wang Jinbao introduced to Qin Tao excitedly: "Mr. Qin, after our various contacts, we finally found a domestic manufacturer specializing in aircraft composite brake pads. We use their materials as clutches. times or so of service life!"

For an aircraft, it is absolutely unbearable to replace the clutch five times including take-off and landing. However, for the research and development personnel, this is already a huge breakthrough!

After all, they were unable to solve this problem at all before, not once, and every time they were combined and separated, they were burned almost instantly.

Qin Tao nodded: "The next step is to optimize your control program, combined with a smoother separation, which can increase the lifespan to about 20 times. Then it is waiting for the continuous breakthrough of domestic friction materials."

When I saw the French Mirage 2000 stop directly without using a parachute, the country was greatly stimulated, and composite brake pads were started. Now, I don’t know if it can be used on the plane, at least I have provided it for myself. A convenience.

Of course, there is no best, only better, and they still have a lot of room for development.

"Now that these projects have been completed, it means that we can match the turbofan 15 engine." Qin Tao said: "This is really good news. Next, we need to publicly display our set of vertical engines. Takeoff and landing power system!"

On the bending machine project, Qin Tao is very cautious and implements strict confidentiality measures, fearing that others will learn it. On the vertical take-off and landing power, he wants to show it to the public. Of course, this is for the purpose of destroying the 31A Raise the flag and shout for more user investment.

"Of course. Next, our project can be placed in the Institute of Aerodynamics. They have a special test bench and turbofan fifteen engines. We need to conduct matching experiments with them."

"Of course." Qin Tao nodded: "This is a phased achievement."

Qin Tao highly affirmed the progress of this project.

This project also has many purposes, one of which is to follow the path of the Yankee, so that the Yankee has nowhere to go!

On the other side of the ocean, the development progress of X-32 and X-35, I don’t know what’s going on?

Qin Tao was a little curious.

Boeing.

"This is the speed of our Boeing! We are far behind our competitors. Even if they laugh at our plane as a flying toad, we are definitely the first to fly to the sky!"

While other competitors were still working on detailing, Boeing's X-32 prototype was built!

There are many reasons for this. For example, Boeing’s project is not completely new. The AVX-70 in the ASTOVL project has already laid the groundwork for them. Later, when bidding, the project was only modified. That's all.

So, they progress the fastest.

Now, watching the prototypes on the runway about to fly, everyone's heart is happy.

Holding the helmet, the test pilot strode towards the plane. In the eyes of countless people, the plane started, taxied, and climbed.

For the first test flight, they did not use the tall vertical take-off and landing, but took off by taxiing like ordinary fighter jets. After all, their plane came out, but the improved engine specially developed by Pratt \u0026 Whitney for this project has not yet However, they can only use the F-119 engine on the F-22 fighter jet, which does not have enough thrust to provide the power needed for vertical take-off and landing.

"How can its running distance be so long?" An air force officer present frowned.

"Isn't its low-altitude performance as bad as F4D's?"

Many people have already frowned, and the people of Boeing are already sweating profusely. The first big problem of Flying Toad has begun to trouble them!

The Flying Toad uses a tailless delta-wing structure, which is Dassault's specialty layout scheme: in the case of weak engines, this layout can obtain good lift, climb rate, and high-speed advantages.

For the big-mouthed flying toad, this layout can make up for many of its shortcomings. Moreover, the thick delta wing can also store a large amount of fuel. The planned nine tons of fuel in the aircraft are almost all stored in the wings. of.

This even prevented the wings from folding.

But another trouble with the tailless delta wing has appeared: poor low-altitude performance, poor take-off and landing characteristics!

This prototype was the first to test fly, and its huge flaws have already been exposed. Even if it adopts advanced telex operation, it can't save its own flaws.

Unless it is changed to a canard layout, or a normal layout, no matter what, it almost means that the entire project must be overthrown and restarted!

Its technical flaws are not limited to this one, and more flaws will be exposed in the future.

The time has come to December 1995, and Qin Tao returned to Mingzhou with his wife and children.

On the second day after his return, Qin Tao attended the opening ceremony of the nuclear power plant.

If it is a conventional nuclear power plant, it is absolutely impossible to put it into commercial operation without three to five years of construction. Thanks to the nuclear power plant in front of me, it is a direct transplant of the planned nuclear submarine reactor. Almost all final assembly is carried out in the factory. , and then transported directly by ship.

Qin Tao was also very excited as the flags and flags fluttered in the nuclear power plant.

"This represents the beginning of a new era!" Qin Tao stood in front of the microphone, looked at countless guests, and said excitedly: "Our nuclear power plant has a nuclear reactor with a power of 150 megawatts, and the power generation exceeds Forty megawatts will allow our Mingzhou Group to completely achieve self-sufficiency in electricity consumption. In the future, due to electricity shortages, many places may have power cuts, but we don’t have to worry because we have our own power stations! "

In the 1990s, industries in various places developed faster and faster, especially in the southeast coastal cities, which also brought a lot of demand for electricity. In the period of high load, there will even be power cuts.

Although the Mingzhou Group has not been cut off so far, it doesn't mean it won't be in the future. Think about using your own electricity in the future, without worrying about the risk of a power outage, and it doesn't cost you money!

It's just an initial investment. Afterwards, there is only the cost of personnel maintenance, and these personnel are sent by relevant domestic agencies. Mingzhou Group will only issue a subsidy at most.

This is definitely a great thing.

"Excuse me, is your nuclear power plant safe?" At this moment, someone below said in an unskilled tone.

Of course, there will be a large number of reporters coming for such a big event, and the Mingzhou Group can't stop it. Therefore, among these people, there will be some critics.

Qin Tao looked at it. He was short, yellow-skinned, and could not curl his tongue when speaking. Needless to say, he must be from an island country.

"In the world, nuclear power technology is constantly developing." Qin Tao said: "So far, the two most serious nuclear power accidents in the world are both first-generation nuclear reactors, especially the accident at the Chernobyl nuclear power plant. It is artificially caused by laymen leading experts."

"Our nuclear power plant has reached the third-generation nuclear power plant technology in the world. It is built quickly, has a high fuel utilization rate, and is safe and reliable." Qin Tao said: "If you want to worry, you should worry about your first nuclear power plant." A generation of nuclear power plants!"

There was a burst of laughter all around.

The island country is a country seriously short of energy. Therefore, the island country has launched a large number of nuclear power plant projects. Moreover, because it is an island country, their nuclear power plants are directly built on the seashore, using seawater to dissipate heat.

Usually there is no problem, but once there is an earthquake and tsunami, it may cause huge problems to their nuclear power plants.

These people, are they still worried about themselves?

"Our nuclear power plant is absolutely safe, and there will be no problems. We have first-class technology and management experience!" You can pay attention to environmental protection and don’t do things that damage the world’s environment.”

"Thank you for your reminder." Qin Tao looked at the guy with contempt on his face: "Our nuclear power plant is an integrated design, and during its entire lifespan, that is, twenty-five to thirty years, there is no need to To replace the nuclear fuel, we will not dismantle it after the end of its service life, but will seal it up as a whole, so as to avoid any possibility of nuclear leakage. What about you? Your nuclear waste water is almost full, right? ? Are you planning to pour it directly into the sea water?"

The other party stopped talking immediately.

The island country is vigorously developing nuclear power plants, but it has never considered how to deal with nuclear wastewater. It is temporarily stored in steel cylinders. When the storage is full, it will threaten the whole world. Give me money, give me land, let me Solve it, if you don't give it, then I will throw it into the sea!

Such a country, which has scourges the world's oceans, still has the face to blame the East? The abandoned nuclear materials in the East are all buried deep underground, and they are processed on their own land, which will not affect other countries at all.

"Your nuclear reactor has such a long lifespan? Don't you need to add nuclear materials halfway?" other reporters asked curiously.

"Yes, we have adopted a special design, and this is also the current trend in the world. The nuclear submarines of various countries are pursuing the same lifespan of the reactor and the submarine, saving half of the service and replacing nuclear fuel. Our nuclear technology is in line with the world. Yes, of course it can reach this level.”

When did the Eastern nuclear technology leap to the level of the whole world? A few years ago, weren't they still in contact with France and wanted to introduce French nuclear power technology?

Everyone is very curious, but this is a commercial secret, Qin Tao will not say more.

"Why doesn't your nuclear power plant have a chimney?" Someone asked again.

"Chimney? What do nuclear power plants need chimneys for? It's not a coal-fired boiler." Qin Tao said disdainfully: "Only those backward nuclear power plants need chimneys, and those with chimneys will use a lot of fresh water and discharge fresh water , there is a possibility of causing pollution, we are responsible and will not do such a thing!"

"Now, let's start the nuclear reactor!"

The central control room began to operate, the cadmium rods that controlled the reaction speed were slowly drawn out, the nuclear reactor began to generate heat, and the internal cooling water began to circulate slowly.

Half an hour later, Qin Tao came to the control room.

"The reactor is operating normally, and the air pressure of the secondary circuit has reached the rated value."

"Prepare to start the steam turbine, and the generator is ready!"

"Shouldn't it be connected to the grid next?" Listening to the news from the control room, one of the reporters outside asked curiously.

"It shouldn't be necessary, they use a separate circuit."

"No, I heard that direct current transmission is used, and grid connection is very simple."

DC, grid-connected?

Everyone is a little curious.

"There's a bulletin board over there, haven't you read it?"

Billboards?

When they rushed over, they saw the illustrations above and the introduction next to it. It seemed that it was indeed tall enough, and it was much more complicated than the direct power generation and output in the West!

"Excellent, when it comes to high-voltage direct current transmission, they are unique."

"That's right, the relevant components are all produced in their country. The technology in this area has reached the world's top level."

Everyone sighed.

"The generator started successfully!"

At this moment, the control room was still very tense.

According to Qin Tao's original plan, directly use the 12-phase generator, and then separate the four three-phase electricity to supply different factories. But later, he felt that this was a bit complicated, so he simply made some improvements.

The 12-phase generator generates a lot of electricity, all of which are converted into direct current through rectification, so there is no phase problem, and then converted into alternating current through inversion, so that it can also be directly connected to the grid.

For a period of time, the power station was in a state of trial operation, and the shipyard could not be completely dependent on the power station. In case of failure, it would be caught blind. Therefore, grid-connected power generation will solve this problem. After that, it will gradually transition to the power station. .

Ma Gong also stayed in Mingzhou for the time being. He needs to take overall responsibility. Once there is a problem, he will provide a solution as soon as possible. After all, this 12-phase generator with a rated power of 50 megawatts is also the first in China. !

"This is a moment worth celebrating!" the old Maozi who was present said.

As the designer of the entire nuclear power plant project, Krasnopolsky has a confident smile on his face. This is already a mature reactor for nuclear submarines. It is enough to strictly control the quality of the construction. In the process of building nuclear power plants, he is famously strict, and any defective parts will be strictly rejected.

"Thank you, and thank you to everyone present." Qin Tao said: "You are the heroes of Mingzhou Group!"

The Mingzhou Group’s nuclear power plant officially embarked on a new journey on this day. Its commissioning solved the power supply problem of the Mingzhou Group, and also reserved qualified power for the next nuclear submarine, even if it was built with a displacement of 20,000 tons of super nuclear submarines, and don't worry about not having a suitable nuclear reactor to use!

"No thanks, what we want is a project." Krasnopolsky said: "When will our new big shark project start?"

"Soon, I promise." Qin Tao patted his chest.