Originally, there was no essential difference between the construction of steam turbines and gas turbines. One is nothing more than using high-pressure steam to drive the turbine, while the other is to directly inject refined coal powder into the turbine and fully combine the air sucked in by the turbofan to do work. The internal structure of the two bodies is actually similar, except that the gas turbine has high requirements for materials, and the shell and turbine blades that can withstand high temperatures are required, while the steam turbine does not need it. Therefore, it is normal for the Institute of Mechanical Technology to choose gas turbines.

"Director Peng of the Institute of Metals, have you made any progress in the research of high-temperature resistant materials?" Shen Danqing knew that the key to the problem was the Institute of Metals, so he asked him directly.

Bloomberg heard the boss ask him, and quickly stood up and replied, "Boss, no problem." We have been researching high-temperature resistant materials for two years, and we already have various types of high-temperature resistant alloys, and even we are still working on metal single crystal materials, so our high-temperature resistant material technology will be improved to another level. The temperature of coal burning is not high, it is enough to use ordinary superalloys, and I assure my boss that there is no problem with the material. ”

"Good, good. In this way, the gas turbine is our best choice, it solves the material problem, it is simpler and safer than the steam turbine, it does not have a whole set of high-temperature steam generation equipment, including high-pressure boilers. These devices and high-pressure steam pipelines have great safety risks. Then we decided to choose a gas turbine for development. Shen Danqing was very happy, this time the subordinate research institute finally did not hold back. Then he was silent for a few minutes, and then said to the whole audience: "Today, I will establish the gas turbine research and development team by the way, and I have decided to form a research and development team led by the Mechanical Technology Research Institute, with the assistance of the Electronics Research Institute, the Metal Research Institute of Soft News Company, and the Physics Research Institute. The technical team of the waterworks consisted of the Institute of Chemistry and the Institute of Physics, and the brick factory was copied by Changsheng Seiko with a set of the same equipment. In the case of the mixing plant, it is enough to buy a set of equipment! It is too slow to develop it by yourself, and there is not much technical content. In addition, you should set up several technical groups in advance to assist Changsheng Construction Engineering in designing the plant, which is very important, because the plant will be ahead of your research and development equipment. ”

Then he looked at Guo Dong of the Institute of Mechanical Technology and said: "Remember to inform me when you officially develop the gas turbine, I have some original insights to tell you." ”

Then he raised his voice and said to everyone: "That's all for today, adjourn the meeting." With that, he got up and walked out of the conference room first.

After arranging everything properly, Shen Danqing's task will be completed, as the boss, he only needs to control the overall situation, and he doesn't need to do specific things.

Guo Dong informed him the next day, and he really attended the first technical seminar on time. At the meeting, he first spoke: "This time I am here as a spectator, and you can discuss technical issues normally, as if I didn't exist." I will say my unique idea at the right time, and now I invite Guo Dong to preside over the meeting!"

The one who really understands the gas turbine technology in advance is the technical department of Changsheng Seiko, which is the predecessor of the Mechanical Technology Research Institute. Therefore, Guo Dong was confident this time, he stood up according to his words, first nodded to the boss, and then began to talk.

"Hello boss, colleagues, I feel very honored to have the honor to preside over this meeting today. The theme of our conference is just that: Gas Turbines.

Gas turbines were theoretically developed as early as the 19th century, and the first experimental machine was trial-produced by the German Schneerz in 1872. However, due to the immaturity of the technical conditions at that time, it was not successful. It wasn't until 1942 that Sweden built the first practical gas turbine generator with a measly 18% thermal efficiency. The structure of a gas turbine is very simple, it consists of several parts such as a compressor, a combustion chamber, a gas turbine and an exhaust system. It seems simple, but it requires advanced aerodynamic technology, high-temperature resistant material technology and high-temperature cooling turbine blade technology. There are only a few large companies in the world that can really do it, such as: Rolls-Royce in the United Kingdom, ABB, GE and Pratt & Whitney in the United States, Siemens/Westinghouse in Germany, Mitsubishi in Japan and a limited number of other companies, and Europe and the United States also prohibit exports to China, which are controlled products. Although China received technical assistance from the Soviet Union as early as 1951, it has not made any major development until now, and its technology is still very backward. So we have to design our own way out.

Since we needed a large gas turbine generator with a stationary type, we had to go the design route of a heavy-duty gas turbine, that is, an axial turbine engine. Moreover, others burn gas and liquid fuels, while we burn coal, so the structure will definitely be different, and we can't always copy other people's designs.

Let's first determine the material of the turbine blades, which are also divided into two types, one is the low-pressure compressor turbine blade, and the other is the high-pressure turbine turbine blade. Because of the different working environments of these two blades, the materials used are also different. ……”

Guo Dong crackled and talked a lot, indicating that he really understood the construction principle of gas turbines. Shen Danqing waited for him to finish speaking, and then said: "Dean Guo said a lot just now, and he also spoke in great detail. I only add two points, first, to strengthen the utilization of exhaust gas heat resources, if possible, you can add a group of steam turbine generators, which belongs to the utilization of waste heat, can not pursue thermal efficiency.

Second, in front of the suction turbofan, we can add a group, bladeless turbofan, which can increase the air intake of the low-pressure fan by fifteen times, which is a great technology, you can try it, I won't say much about the rest, you are experts, you can find a way to solve it. ”

After speaking, Shen Danqing got up and left the venue. He is the boss and does not have to respect the rules of the venue, so he can leave the venue early, while others do not have the right to continue the meeting to discuss whether the idea proposed by the boss is feasible.

Shen Danqing put forward two opinions, the first of which is ABB's specialty later: iGCC. In Chinese, it is the waste heat circulation system, and its thermal efficiency is increased to 58.5%.

The second is his originality, which he drew inspiration from the principle of bladeless fans. An aerodynamic principle that can increase the air intake by 15 times, the efficiency of gas turbines depends on how to increase the compression ratio, and his idea is equivalent to a black technology.

Later, the gas turbine development team led by Guo Dong did not follow his instructions and built another steam turbine generator to form a hot gas recycling generator set. They felt that was too cumbersome and complicated, so they collected the exhaust heat directly into the bladeless turbofan at the front, which produced better results. In disguise, the inlet air temperature is increased, i.e. the compression ratio is increased.

Don't look at Shen Danqing's only two short requirements, but it is the key to the world's leading thermal efficiency of the entire gas turbine power generation unit, reaching an astonishing 63%. So sometimes, a casual idea can change the world. Since then, China's warship power has all used the marine light gas turbine units of Changsheng Investment Group, and the marine power technology has become the world's leading. No longer afraid of a technological blockade from abroad.

After Shen Danqing left the venue, he returned directly to Changsheng Building. He is not a scientist reborn, just an ordinary ** silk who loves to watch the flow of urban power, so he has hollowed out what he knows at the venue just now. It is a wise choice for him to retreat bravely from the rapids, otherwise he will soon be exposed, and let his subordinates know his true face with a bright appearance and a hollow inside.

Shen Danqing is the boss, and after he finished arranging the tasks of his subordinate units, they were so busy that they didn't have time to catch their breath, but he had nothing to do for a while. So he had a lot of time to think about the next direction of technology development, and he set his sights on LCD screen technology.

Of course, now everyone is not available, but he is brewing it himself. After careful consideration, he found that the LCD screen technology is basically not much more technically difficult than that of Changsheng Investment Group. And according to the international LCD screen technology level, he will directly use the sixth generation LCD screen technology. Of course, there is another difficulty that has not been solved, and that is the chipset inside. Since it is the sixth generation of LCD technology, of course, it will directly adopt the digital network TV standard, and the TV and display screen are common. Instead of using analog technology on TVs today, digital displays are used on displays. To meet this requirement, it is necessary to have a digital-to-analog conversion chip, rather than waiting for major TV stations to convert digital standards.

Of course, it is impossible for Changsheng Investment Group to reach the TV technology of the 21st century, because the heart of the TV, the central processing unit is still only a pitiful 16-bit, not to mention the image co-processing chip and audio co-processing chip. They don't have it at all. For a long time in the future, there will be no more than 10,000 electronic engineers in the Institute of Electronics.

Changsheng Investment Group is now a freak, with certain technologies already at or beyond 2017 levels, such as nano-level machining and the resulting lithography machine. However, some technologies still follow the laws of scientific and technological development, keep pace with today, and even lag far behind the developed countries in Europe and the United States. For example, electronics, software, and many other theoretical physics and chemistry technologies. The consequence of this is that their strengths cannot be brought into play, such as LCD screen technology, as long as they are given chipsets in the 21st century, then their LCD screen technology will definitely not be weaker than Samsung's technology in the 21st century, and may even surpass. But there is no if, so Changsheng Investment Group can only honestly hold on. This is the reason why Shen Danqing Qianlong plans it, not because he is unwilling, but because he can't.

……