"Mr. Qin, if our price is too high, will they run away?" Xu Zhengyang was a little worried.

It’s just a generator, and the cost is only about 2 million. The price of Mingzhou Group’s internal supporting equipment is only 4 million. If it is sold to outsiders, 10 million is already very profitable. Mr. Qin actually quoted 30 million, which is not the case.

You idiot, don’t you know how to develop it yourself? Why use Mingzhou Group’s?

"If they don't use our generator, they can only use the generator developed by Alstom's Mechanical and Electrical Department for the Queen-class aircraft carrier." Qin Tao said: "The rated speed of the MT30 power turbine used by the Queen-class aircraft carrier is set to 3,600

revolutions per minute, which can meet the goal of directly emitting alternating current with a frequency of 60 Hz from the alternator. As for our UGT40000, the power turbine output speed is more than 5,000 rpm. How do they use the generator of the Queen-class aircraft carrier?

"

Qin Tao is very confident: "If they develop their own specialized generators, the research and development cost will probably be 80 million. Our two generators only cost 60 million. They are absolutely reliable."

The East uses twelve-phase generators, which then become medium-voltage DC, while the West uses medium-voltage AC. After starting, their generators must have some fixed speed values, otherwise they cannot be connected to the grid to generate electricity.

.

The speed of our two gas turbines does not meet the needs.

"What about their own research on reducers?" Xu Zhengyang continued to ask.

Different speeds can be achieved through a reducer.

"Reducer?" Qin Tao smiled: "Their power grid has so many generators, and grid connection is definitely a big problem. With our gas turbine, if a reduction gear is added, it will be even more difficult to connect to the grid."

It’s not easy to adjust it properly. They have no choice. They have fallen into our trap since they started purchasing our gas turbines.”

Zhao Ling on the side said: "Yes, after they buy our generator, they will have to purchase our inverter."

Our own is a twelve-phase generator, and the alternating current generated will be directly converted into direct current through the rectifier. For domestic warships, converting it into direct current is enough, because it uses medium voltage direct current, which is very convenient to form a power grid.

The step of grid synchronization is omitted.

However, the medium-voltage AC in the West is not good. When they bought the generator, they found that it was still unable to be connected to the grid, so they had to continue purchasing inverters.

It is easy to convert alternating current into direct current. You only need to use high-power silicon rectifier diodes. Through the unidirectional conductivity of this electronic device, you can convert alternating current into direct current. However, converting direct current into alternating current is not easy.

This requires the participation of advanced high-power semiconductor components, such as IGBT and MOSFET, etc. In this field, Dongfang is the leader!

Why doesn't the West use medium-voltage DC instead of AC? It's because the power grid in the West is quite backward. Yes, in recent years, the infrastructure work in the West has almost been at a standstill without any progress, and the power supply system in the West has not developed much either.

In contrast, the East is making great strides forward.

There is a lot of energy in the east, but it is all in the west, and the main users are in the east. Therefore, the power from the west needs to be transported over. If AC power is used, there will be impedance, capacitive reactance and inductive reactance, but

If direct current is used, there is only impedance and capacitive reactance, and inductive reactance is only produced by alternating current.

Specifically, if alternating current is used for transmission, one-fifth of one kilowatt hour of electricity may be wasted in the transmission process. If direct current is used, only one-tenth may be wasted. What is saved is what is earned. Therefore, Dongfang has always

Studying how to reduce transmission losses.

Dongfang has high-power transformer equipment, which converts alternating current into direct current at one end of the generator, and then converts direct current into alternating current at the user's end. After all, the user still has to connect to the grid for power supply.

In this way, Dongfang has studied a large number of such equipment and accumulated rich experience.

These experiences were used on aircraft carriers, and soon the aircraft carrier's integrated electric power, electromagnetic ejection, and electromagnetic interception were mature. These experiences were used on electric vehicles, and the technology quickly made a breakthrough.

Yes, electric cars also benefit. After all, the battery is DC, but the motor needs AC. Only AC motors do not need brushes. This will cause early wear and sparks may also be a fire hazard.

This is the hard power of the East.

Now, Qin Tao has full confidence that even if he kills the French, the French will have no other choice but to accept the killing obediently.

Xu Zhengyang did not continue to raise objections. Mr. Qin had already made arrangements, so he didn't have to worry about it.

"Mr. Qin, there is a new situation." Zhao Ling said.

"explain."

"We have contacted Guinea, and they insist on coming. They would rather come seven days in advance and stay in a hotel for seven days."

"Okay, then let them come over." Qin Tao nodded: "This is Africa's first super warship with a displacement of 40,000 tons. We can understand their mood."

In Africa, there are hundreds of tons of missile boats that can dominate, not to mention thousands of tons of frigates and destroyers. Now, for the first time, the African navy has a 40,000-ton aircraft carrier. This is definitely a huge leap.

From now on, the Guinean navy can roam freely in Africa. This guy Americo has always been ambitious. How could he give up such a good opportunity? He must come in person to participate in the launching ceremony of this warship.

Watching on the Internet, how can you have the feeling of being there in person?

Just come, it's just seven more days of food money.

"Also, the relevant leaders of the Navy can no longer wait and decided to invite us to the capital for a meeting. They hope that we will wear masks throughout the whole process and take a special plane and car there."

Think about it, the Navy has been waiting for the aircraft carrier project for a long time, but because of the masks, it has to wait for an extra six months. They must be suffering enough.

This chapter is not finished yet, please click on the next page to continue reading the exciting content! "Okay, let's go to Huating first, pick up the staff from the Second Design Office, and go to the capital to report the specific project to the leaders. As long as the project is approved, then

We can start construction on 003 immediately after 075 is launched, and the dock can be used all the time."

"Um."

The capital seems to have been shut down for a while and has not yet recovered. There are no people on the streets, only people wearing isolation suits doing various jobs. Looking at these scenes, Qin Tao seems to have returned to

Before traveling through time by myself.

No difficulty can stop our motherland and people!

In the Huanglou conference room, everyone was wearing masks. They looked very unique, and their voices also changed a bit.

"Our meeting should have been held a month or two ago, but there is no way. It has been postponed until now." Wu Shengli said: "We can't delay it any longer. We need to start construction as soon as possible. I heard that the Mingzhou Group's shipyard will be built soon.

will be freed up, so we hope that after the last one is launched, the construction of our 003 aircraft carrier can start. The relevant funds have been approved by superiors and will be allocated to the Mingzhou Group's account soon. Our current best

The most important thing is to review the design."

"Yes, our Mingzhou Group is also looking forward to passing the approval plan and then starting construction." Qin Tao said: "Now, please let our Mr. Mao Gengxin introduce our design plan to you."

Babbage walked up to the rostrum with vigorous steps, stood at the side where he was speaking, and connected his notebook to the projector screen.

"Let's first introduce the main parameters of our 003 aircraft carrier. Its length is 338 meters, its width is 81 meters, its standard displacement is 80,000 tons, and its full load displacement is 100,000 tons."

Although they were always talking about 80,000 tons, 80,000 tons, there was no stipulation on the displacement. Now that they are all nuclear-powered, of course they cannot be small in size and must be aimed at the latest aircraft carrier of the US military.

002 is already 80,000 tons, and 003 will of course transition to 100,000 tons.

"With a full load of 100,000 tons? Is our power system sufficient?" Navy leaders first thought of this question.

"Our Linglong No. 1 nuclear reactor has a core power of 700 megawatts and a generating power of 120 megawatts. In this way, the main engine alone can provide 240 megawatts of power supply." Babbage continued to introduce, although these data were not updated at the previous meeting.

Qin Tao had already said it before, but after all, this was the last and most important decision-making meeting, and some leaders still didn't know.

"At the same time, we also plan to use two 40-megawatt gas turbines as auxiliary engines. When needed, we can add an additional 80-megawatt power supply. There will be no problem in propelling a 100,000-ton warship with this power. After all,

Our tail drive motor is 40 megawatts, and four of them only require 160 megawatts of power."

"Have you decided to use all-electric propulsion?"

These are topics that I have been hesitating about for a long time, but now I can finally make a decision.

"Yes, our nuclear reactors and steam turbines will be installed at the rear of the warship. If the defects of all-electric drive are exposed during sea trials, we will also change to a transmission shaft, and the cost will be borne by our Mingzhou Group.

It won't cost the Navy a penny more."

Since such a commitment has been made, of course, there is enough confidence. These systems have long been mature. The Navy should not be conservative and make strides forward.

One hundred and sixty megawatts of electricity can already propel the aircraft carrier to a speed of thirty knots. The remaining electricity is of course used to power other systems, especially electromagnetic catapults, which are large power consumers.

"You also added two 40-megawatt gas turbines. Isn't this a bit too much?"

Does it need such a large amount of power? The British Queen class, which is 60,000 tons, only uses two 40-megawatt gas turbines.

"We have considered future development and backup." Babbage said: "If there is a problem with the nuclear power system, these two gas turbines can also allow the warship to return at low speed instead of lying down."

This is just like Lao Maozi. Even if there is a nuclear reactor, he still has to burn the boiler, just in case the nuclear reactor does not work, he can still rely on burning the boiler to move forward. In fact, Lao Maozi's worries are justified. In the 1990s,

, a Kirov-class ship had a problem with its nuclear reactor and ended up relying on its boiler to get home.

As for our own side? That kind of accident should not happen. These two gas turbines are only temporarily providing power for use. After all, if projects such as electromagnetic guns are installed in the future, power consumption will definitely soar.

"In order to better utilize the energy on the aircraft carrier, these two gas turbines will use aviation kerosene."

Ordinary battleship gas turbines use diesel fuel. After all, it is cheap. When the diesel fuel is alternated, it can share the same fuel with the diesel engine, but the aircraft carrier is different.

The aircraft carrier that burns the boiler uses heavy oil. The nuclear-powered aircraft carrier does not need to burn fuel. The aircraft carrier only needs to store aviation fuel. Although there are some vehicles on the aircraft carrier that burn diesel, such as deck tractors, etc., the diesel fuel tank on the aircraft carrier is very small.

It is too small to be used by the gas turbine, and it will be sucked out in a few minutes.

However, aircraft carriers need to operate a large number of carrier-based aircraft and require a large amount of aviation kerosene as fuel. Generally speaking, as long as one-third is burned, it must be replenished to avoid the problem of shortage. Therefore, using gas turbines on aircraft carriers

It is more suitable to burn aviation kerosene. Even if it goes tens of thousands of miles, it can still be driven back.

Of course, if an aircraft carrier relies only on gas turbines for power, it will still need to add an additional diesel tank. After all, aviation fuel only needs to be burned once in a while. If it is burned frequently, even the big guys can't afford it.

Occasionally when you need intensive ejection, open it and then it will be an emergency.

"Does such a large power host need a special chimney?"

The chimney of an aircraft carrier also occupies a large deck area. Our country has already built a nuclear-powered aircraft carrier with the intention of saving money. But now, it is better to have a nuclear-powered aircraft carrier and actually have to erect a large chimney. What are you trying to do?

This chapter is not over yet, please click on the next page to continue reading! "No, our gas turbine is arranged slightly higher and is directly discharged to the side."

Some auxiliary engines used by aircraft carriers can have side exhaust. Now, it is definitely not mainstream to use two gas turbines with side exhaust. If they are used every day, this will definitely not work. Only auxiliary engines that are used occasionally can do this.

arrange.
To be continued...