bonanza

Chapter 687 Dongsheng - 390
Yang Dongsheng hung up the phone, and Zhou Ying asked, "Is it really so hard over there?"

"Our country has just developed to what level, and there are still many places that are suffering?" Yang Dongsheng glanced at Zhou Ying, this is really a lady who is used to being a lady, and he can't see the suffering in the world, "Yang Miao, give your mother Tell me about what you saw in the small coal mines in Sichuan Province!"

……

In a particularly tall factory building of Dongsheng Heavy Industry, a barrel-shaped piece of equipment is connected to two thick pipes one behind the other, and the whole piece of equipment is making continuous roars.

This equipment is a civil heavy-duty gas turbine manufactured by Dongsheng Heavy Industry. The thermal efficiency of a simple cycle can reach 36.9%, and the power can reach 255 megawatts, which is about 34 horsepower.

Coupled with the combined cycle, the thermal efficiency can reach 56%, and the power can reach 390 megawatts, which is about 52 horsepower.

This gas turbine was therefore named Dongsheng-390.

Judging from various technical indicators, Dongsheng-390 is a typical F-class gas turbine—in fact, this set of equipment is imitated from General Electric’s 9FA gas turbine, but the progress of completion is almost a year behind the original plan.

Large-scale industrial equipment has always been a systematic project. As long as any point cannot be achieved, the entire set of equipment cannot be produced.

Previously, they had mastered a series of core technologies such as single crystal blades, high-temperature resistant coatings, and long-life bearings through the manufacture of Zhujiang aeroderivative gas turbines, but they did not expect to be stumbled by some "minor problems" when manufacturing Dongsheng-390 feet.

Dongsheng-390 is more than ten times heavier than the aero-modified Zhujiang, and many parts are much larger than Zhujiang.

For example, the diameter of the turbine disk blank of Dongsheng-390 has reached 2 meters, which is 4 times that of Zhujiang, and its weight has reached 10 tons, which is more than 50 times that of Zhujiang.

The joint machining center responsible for manufacturing this part has never manufactured such a high-purity and such a large part. The casting and forging problems have been done for several months.

"Go for a walk!" Yang Dongsheng winked at Vice President Wang of Dongsheng Heavy Industry.

Walking out of the roaring workshop, today's weather is fine, standing in the factory area, you can see the world financial center that has taken shape in the distance.

"How's the progress on Qindao?" Yang Dongsheng asked.

"They will be able to come up with the first set of equipment in the first half of next year." Vice President Wang secretly glanced at Yang Dongsheng, "I heard that the equipment has not been manufactured yet, and it has been booked by the power plant in Hangzhou!"

"General Electric is a gas turbine giant and has brand advantages; Bingcheng Electric is a national key enterprise and has policy advantages! It's really easy to occupy both ends!"

At the beginning of the year, General Electric, one of the three major international gas turbine giants, signed a contract with Bingcheng Electric, one of the three major state-owned electrical manufacturers, to cooperate in the production of F-class gas turbines in Qindao City, Hebei Province.

According to past experience, this kind of cooperation usually involves foreign companies producing all high-value core equipment, and domestic companies build a shell, but I heard that even the shell is made in the United States this time, and Bingcheng Electric is only responsible for the production of some fringe equipment. supporting equipment.

In order to introduce General Electric's gas turbine technology, the state gave this company many preferential conditions, and even took the initiative to match them.

In contrast, apart from Dongsheng Mining, Dongsheng Heavy Industry's aeronautical Zhujiang gas turbine has not really sold a single one.

"In the final analysis, this matter is our Dongsheng Heavy Industry's own problem. If Dongsheng-390 could be produced last year, I am afraid that this joint venture company will not be born at all." Vice President Wang said.

Yang Dongsheng waved his hand at Vice President Wang, "Even if you come up with Dongsheng-390 as scheduled, we will inevitably have to do this with General Electric in the future. Now we have just advanced the time by a few years! Tell me Your plan!"

Vice President Wang pondered for a while, "Our equipment is a fully mature technology. I want to pass the national technical appraisal as soon as possible and put the equipment on the market! We may not have brand effect or national policy support, but in terms of service , we will definitely outperform General Electric!"

Yang Dongsheng nodded. General Electric not only sells expensive equipment, but also sells follow-up services more expensive.

When selling equipment, their attitude may be lowered. Once you buy GE equipment, you will become GE's cash machine!
"In addition, I think the most important thing is that we should promptly promote the technical improvement of Dongsheng-390 gas turbines. I heard from people who came from the United States that General Electric is already working on 9FB, and even the development of the next generation of H-class gas turbines. !"

"H gas turbine? This technical difficulty is not small!" Yang Dongsheng looked up at the sky.

To make the thermal efficiency of the gas turbine higher, the combustion must be more complete, so the combustion chamber must reach a higher temperature and higher pressure.

The core technology for developing next-generation gas turbines is to develop more high-temperature-resistant materials and more efficient cooling methods.

Of course, there is another tricky way, which is to add rhenium to the material like the Japanese.

Through this method, the Japanese raised the temperature of their gas turbine combustors by one or two hundred degrees higher than that of General Electric and Siemens, and the thermal efficiency seemed to be higher.

In his previous life, Yang Dongsheng often saw people bragging about Japan on the official account!

But this method is not desirable.

Not to mention that more rhenium is counterfeit and expensive, the total reserves of rhenium in the world are only one or two thousand tons.

A heavy-duty gas turbine weighs three to four hundred tons, and higher-grade gas turbines will be even heavier in the future. There is simply not so much rhenium added to it in the world. This is an unsustainable path.

Therefore, among the world's three major gas turbine giants, Mitsubishi has always been the last one.

After Siemens and General Electric launched H-class gas turbines successively, they had to independently develop a first-class gas turbine refill because they were not sure about the related technologies.

In order to make people mistakenly think that their gas turbines are better, they also played a trick in naming their new gas turbines - J-class gas turbines after a letter after H.

"Pay close attention to General Electric's movements. According to the information I got, they have a lot of internal problems, and life will not be easy for the next few years!" Yang Dongsheng patted Vice President Wang on the shoulder.

Coming out of Dongsheng Heavy Industry, Yang Dongsheng looked at his watch. Now that he was back at the company, when he arrived at the office building, he was already off work, so Yang Dongsheng simply went straight home.

Before the car stopped, he saw a pickup truck parked in front of the house. Zhou Ying was instructing people to carry a big, dark guy. After Yang Dongsheng got out of the car, he found out that it was a piano.

Yang Yue hugged a huge Siberian forest cat, and stood beside him curiously. The cat was so big that Yang Yue held the cat's head in his arms, and its hind paws could stand on the ground by itself.

"Is it too late to learn piano at your age?" Yang Dongsheng asked Zhou Ying.

"Xiang Xiang Xue!"

"Little Tiger wants to learn piano?" Yang Dongsheng looked at Yang Yue.

"..." Yang Yue immediately shook his head like a rattle.

Yang Dongsheng looked at Zhou Ying, and she said, "One more skill, just in case I need it in the future!"

"When will you use it? Do you want the little tiger to perform in the hotel lobby in the future, or what?" Yang Dongsheng raised Yang Yue's small hand, which is round from palm to finger, "Besides, how about you be more practical and play the piano?" Your hand must be big enough, look at this hand, can it play the piano?"

Seeing this, the Siberian cat next to it also stretched out its claws. When fully stretched, it was even bigger than Yang Yue's hand.

(End of this chapter)