PS: Part of the previous chapter on the FT8 gas turbine has been revised.

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"FT-8 gas turbine?" Chen Geng frowned, as a military fan, he Chen Geng really hadn't heard that Huaxia still had such a relationship with Pratt Whitney, he was more familiar with General Electric's LM2500, but this did not prevent Chen Geng from being curious about this question: "Why did this project turn yellow later?"

"Mainly because the conditions of the British are too harsh," Meng Haibo explained to Chen Geng: "Although the FT-8 gas turbine is the foundation of the JT8D-219 turbofan engine, at the beginning of the cooperation, Pratt Whitney put forward many very excessive requirements, such as the FT-8 gas turbine can only be used in a few civilian occasions such as power generation, and cannot be carried on military ships."

Of course, we can't be happy with this, if we spend so much money to introduce such a product, and in the end we can only sell it to power plants, and only a few units a year? At this time, Pratt Whitney's nemesis, General Electronics, came and told us that he could sell us the LM2500 gas turbine, so ......"

Chen Geng nodded, indicating that he understood.

Although he is not very clear about the entanglement of the FT-8 gas turbine with the LM2500 gas turbine in China, he is too aware of the grudge between GE and Pratt Huitheyou in the gas turbine business: to put it bluntly, because GE's encirclement of Pratt Whitney's gas turbine business is almost all-round. Worldwide, as an example, it can be illustrated: as long as the gas turbine is chosen as the main power system on the military ships of the US Navy, there is only one choice, and that is the LM2500, which has no chance of Pratt Whitney and Rolls-Royce.

But Pratt Whitney is not reconciled, if it is the kind of large-scale industrial gas turbine that is as high as a two-story building, often twenty or thirty meters long, and has a continuous output of up to hundreds of megawatts, then it is just that, but this is an aeronautical transformation machine, in the field of aeronautical gas turbines, the difference between aero engines and gas turbines is really not big, and for the Pratt · As far as Whitney is concerned, they are obviously unwilling to deal with their own situation in the aeroderivative gas turbine market: it is clear that their aero engines are not falling behind in the competition with General Electric on both the military and civilian lines, so why are they overwhelmed in the field of gas turbines?

It's just that the problem is that the reality is like this, if it is said that in the field of aero engines, it is a two-strong competition with General Electric, but in the field of aeroderivative gas turbines, General Electric has completely crushed Pratt Whitney, and it is a leader in this market. Whitney used his energy in the White House and Capitol Hill to get his aeroderivative gas turbine into the military's procurement sequence, and the military's case was strong: we were satisfied with the performance of the LM2500 gas turbine in all aspects, and we felt that there was no need to open another gas turbine in addition to the LM2500.

Faced with the Navy's "Congress, hit the money!" face, the old men on Capitol Hill immediately shut their mouths firmly.

Chen Geng knows all these situations, so why Pratt Whitney set his sights on Huaxia next, it is not difficult to understand: Since I am competing in the European and American markets, you can not compete with you General Electric, then I can always save the country with a curve, right?

Chen Geng, who figured out this, shook his head with a smile: "Actually, Pratt Whitney made a good move, but they didn't change their arrogant nature, if Pratt Whitney allowed the FT-8 gas turbine to be used for military purposes in China, it is estimated that not only would there be no LM2500, but FT-8 would have been sold dozens of units in various thermal power plants in China." ”

Meng Haibo smiled and said yes.

After everyone finished laughing, Chen Geng gently knocked on the table twice: "Let's talk about it, should we do this gas turbine? If so, in which direction." ”

"It must be done," as soon as Chen Geng's voice fell, Meng Haibo immediately said: "The development of our company has been good over the years, don't you say that we are actually a little complacent about the current situation of the company, but now, I realize that we still have so many things to do."

As for the gas turbine, with our current technical strength, I personally am not suitable for the development of too many output power models, but should take the path of 'one machine with multiple types', for example, we determine whether to develop a gas turbine with RB211 as the core, or to develop a gas turbine with 'tay' MK1011 as the core.

After the gas turbine is determined, we can use this gas turbine as the basis for a number of models, such as the gas turbine compressor unit for the pressurized station on the 'West-East Gas Transmission' project, which you are concerned about, such as the gas turbine generator used in the thermal power plant, such as the gas turbine power combination of the Navy, and the gas turbine blower used in those large steel plants......

In short, I think that although the investment in the research and development of gas turbines is very large, this area is promising, and we can even develop overseas markets in the future. ”

The so-called "gas turbine blower" In the early years, the kitchen of the hotel still used coal as fuel, and in order to ensure the firepower, the stove is usually equipped with an electric motor-driven blower, and the same is true for the steel plant, the huge blast furnace also needs to ensure enough firepower to make the iron ore melt as soon as possible, in this case, the motor is not good to drive the compressor to provide wind power for the blast furnace, so usually, the steel plant will use a smaller size, A more powerful gas turbine drives the compressor to act as the "wind hoist" of the blast furnace.

After Meng Haibo finished speaking, Huang Wenqing also said: "I personally agree with Comrade Meng Haibo's opinion in principle, and I am also very optimistic about the future market prospects of gas turbines, but I have some concerns. ”

Chen Geng immediately nodded: "What concerns, you say." ”

"The main reason is that we don't have talents in this area," Huang Wenqing said: "It's not very difficult for us to just use an aero engine to change a gas turbine, but our country's technical strength in power turbines is very weak, and this is ......."

Mr. Huang voiced his concerns.

At this moment, not only Chen Geng, but also several other group executives frowned.

Power turbine, some technical data are also translated as gas turbines, but whether it is called power turbines or gas turbines, it is the same thing, simply put, the role of power turbines is to convert the high temperature and high pressure gas in the turbine into a device that can be used for mechanical energy, if our country is at the level of the tail of the second-rate crane in terms of aero engines (regardless of performance, How is the lifespan, at least you can make it yourself), then the level of our country in terms of power turbines is even worse than that of aero engines, and this section is not a small section, but a large section!

This thing does not mean that you can see the effect in a short period of time if you invest money, the most terrible thing is that there is an extreme lack of talents in this field in China, not to mention the big bulls in this field, there are no big bulls in the field of power turbines in our country at all!

Lack of talent, lack of technology, lack of ......

Nothing is missing!

This is the current situation in our country in the industrial field of power turbines.

Chen Geng can see it, he said: "This is indeed a problem, but after a while, don't we have to go out with the ministry to investigate, see if we can think of a way when the time comes, let's temporarily get the gas generator together, as for the power turbine, although the country is a little worse in this area, but we have also accumulated some hot end technology and materials and processes through RB211, which is somewhat helpful for the power turbine, so the development idea of the power turbine is tentatively set as ' Based on the domestic market, strive for foreign aid'. ”

Based on the domestic market, to strive for foreign aid?

Wang Dazhi took the lead in nodding: "I agree with this idea." ”

"I'm in favor of it too. Huang Wenqing also followed suit.

"Me too. ”

"I agree with ...... too"

............

A room full of executives have expressed their agreement with Chen Geng's development idea, which can be regarded as a certainty.

Chen Geng was very satisfied with this result, and after saying this, Chen Geng continued: "Next, let's talk about the gas generator, for the gas generator, my requirements are one: improve the service life, as for the weight and volume, I don't make any requirements for this, anyway, users are not sensitive to the weight and volume of this thing." ”

Everyone nodded.

Although the gas generator of aero-engine and aero-fueled gas turbine is the same in very different places, structurally speaking, the gas generator of aero-converted gas turbine can be regarded as most of the aero-engine, and it can even be said that it is a mother's birth, but the difference between the two is still very big, for example, the operation of the aero-engine fluctuates greatly, while the gas turbine does not have a large speed fluctuation when it is running;

For example, the requirements of the aero engine for the weight of the fuselage itself are more demanding, sometimes in order to reduce the weight, the designer will even make some concessions in the life of the engine, but the gas turbine is different, most of the use scenarios are fixed on the ground, and will not be moved often, so it is not sensitive to weight, which means that when designing the aeronautical gas turbine, the designer can use a relatively cheap, However, heavier materials are used to replace the more expensive materials on the original aero engine, but on the other hand, gas turbines have high requirements for life.

Even if it is a civil aircraft, the average flight of 10 hours a day is too much, a year is 3650 hours, but for example, the gas turbine compressor unit of the natural gas pipeline is often running continuously for several months, and the life span is at least 10 years, your machine will break down in two or three years, how can the customer be happy?

The other is efficiency, and it is necessary to improve the utilization rate of fuel.