industrial overlord

Chapter 364 Engine Expert

Zhang Yihua, who is in charge of power system research, seems to be much more active than An Zixuan. After everyone came to the power system laboratory, Zhang Yihua spread out a few blueprints, and began to introduce to everyone an industrial steam turbine designed by his team with great interest. Case.

Industrial steam turbine is a key piece of equipment in the ethylene project, mainly used to drive high-power equipment such as pyrolysis gas compressors, ethylene compressors and propylene compressors.The power of these devices exceeds the load of ordinary electric motors, so special steam turbines are needed to drive them.

"The steam turbine we designed is a multi-stage multi-valve steam extraction and condensing type. The main body design and manufacture, noise control, shaft vibration, shaft displacement, bearing temperature monitoring system, etc. have strictly implemented the corresponding API standards. Our steam turbine The flow part has 20 grades, including 1 regulating grade, 3 EBI grades, 14 EBII grades and 2 low pressure standard twisted vanes..."

Zhang Yihua uttered a series of terminology, and the audience present were immediately overwhelmed.Lin Zhenhua also didn't understand what Zhang Yihua said at all, he only knew that these things should be very pornographic and violent.However, among the staff of ALK, there is someone who specializes in the study of steam turbines. When he heard Zhang Yihua's words, he nodded slightly at first, but gradually became serious.

"Mr. Zhang, can I ask, how much pressure can your steam turbine wheel chamber reach?" The ALK expert named Frederick couldn't help but raised his hand and asked.

Zhang Yihua said: "According to our design requirements, the pressure in the wheel chamber should reach 6.5 MPa."

"It's impossible," Frederick said. "There's no other cylinder that can do that."

Zhang Yihua smiled slightly and said: "Sir, this is the innovation of our steam turbine. We adjusted the structure of the inner cylinder in the steam intake part, and used a double-layer structure in the high-pressure part. After our test , the strength can fully meet the requirements.”

"Uh..." Frederick was stupefied, and before he could ask a few more questions, Zhang Yihua had already cast a gaze full of apology at him.Frederick understood the subtext in Zhang Yihua's eyes, and further, it involves the core technology of each company. It is impossible for others to tell you these contents.

Zhang Yihua then spread out another picture and pointed it out to everyone:

"Look, this is the reactionary straight blade airfoil used by our steam turbine. This airfoil is an improvement we made on the basis of the early T3 airfoil. The main reason is to change the profile and obtain a suitable angle of attack. , which reduces the angle of attack loss, and can also reduce the loss of wake turbulence. After this modification, the efficiency of the stage has increased by more than 2%..."

Frederick's eyes became blurred, he stared straight at the picture in Zhang Yihua's hand, wishing he could snatch the picture and stuff it into his bag.What Zhang Yihua said were indeed some key issues in the design of industrial steam turbines. Regardless of the actual situation, at least one thing Frederick could be sure of was that Zhang Yihua was definitely a very good steam turbine expert.

"Mr. Zhang, has your steam turbine been manufactured?" Frederick asked.

Zhang Yihua shook his head and said: "Not yet, but it should be soon. To be honest, we have encountered some difficulties in the material of the blades, but I believe that given us some time, we can completely solve these difficulties of."

"Then I will congratulate Mr. Zhang in advance." Frederick said insincerely.

Next, Lin Zhenhua took Khedira and his party to visit several other laboratories. In each laboratory, a special person introduced the status quo of their scientific research to the Germans.Judging from the introductions of these people, the research on ethylene plants in China has been very in-depth, many key technologies have been solved, and some places have even gone ahead of ALK.

When they came out of the laboratory, Khedira and the others couldn't hide the disappointed look on their faces. They said polite words to their Chinese counterparts angrily, but their hearts kept beating.

"Mr. Lin, thank you very much for arranging such an interesting visit for us. We deeply respect the achievements of our Chinese counterparts." Khedira said to Lin Zhenhua.

Lin Zhenhua imitated the Germans, shrugged his shoulders, and said: "What's the use of these achievements? Our leaders prefer to use imported technology. The laboratories you see may all be closed in the near future. "

"Oh, this is really a pity." Khedira said gloatingly.

After the visit, Lin Zhenhua asked the driver to take Khedira and his party back to the hotel, and stayed there by himself.Today's scene was performed well, he must express his gratitude to the actors.

"Mr. An, thank you for today's matter." Lin Zhenhua said while holding An Zixuan's hand.An Zixuan's real identity is a professor of the Mechanical Department of Huaqing University. His research direction is indeed metal materials, but when it comes to the low-temperature steel used in ethylene compressors, he is cramming, learning and selling now.

An Zixuan smiled and said: "You're welcome, you're welcome. Speaking of which, today I was able to deceive the Germans, thanks to He Lao and his team's extensive work in the early stage. By the way, He Lao, regarding the issue of low-temperature materials, I’m going to ask you a special question another day.”

He Chengshan smiled triumphantly, and said: "Actually, we can't be regarded as fools today. Regarding the welding performance of No. 09 steel, I have been working on it for several years with a few students in Xunyang. Otherwise, let's talk about it today." With these contents, it is impossible to deal with that Ralph."

Lin Zhenhua walked up to Zhang Yihua again, and said to him: "Mr. Zhang, today is also thanks to you. To be honest, I didn't understand a single word of the steam turbine terms you mentioned."

Zhang Yihua smiled slightly: "Actually, I was also sweating a lot. I only started to read the information on industrial steam turbines in the past few days. The ones I made before are completely different from this one. However, it seems that I It still succeeded, that German named Frederick should have been frightened by me."

"By the way, Professor Zhang, what major do you do? Why haven't I heard of your name before?" He Chengshan approached and asked Zhang Yihua.The old man was honest enough, he just said that he had never heard of other people's names, and he was not afraid of people's upset.

"Me, alas, I'm ashamed to say that I'm engaged in aircraft engines." Zhang Yihua said modestly.

"Hey! Those who are engaged in aircraft engines are cutting-edge talents. Disrespect, disrespect." An Zixuan said.

Zhang Yihua said: "What kind of cutting-edge talent am I? I am now a middle-aged unemployed, and I am still waiting for Manager Lin to give me a bite to eat."

"What do you mean?" He Chengshan was a little surprised, "Why, you also plan to go to our Hanhua? But, you are engaged in aircraft engines, and we are separated from our Hanhua."

"Let me introduce to you." Lin Zhenhua stepped forward and said, "This chief engineer Zhang Yihua is an engineer of our national Yun-[-] aircraft project team and is well-known in the aviation industry. As we all know, due to structural adjustments , Our country's Yunshi project has been discontinued, and Chief Engineer Zhang and his team are currently idle. Last time I went to Shanghai to do business, Director Liu Xianghai of the Navy introduced me to meet Chief Engineer Zhang. The chief engineer has agreed to work in Hanhua Heavy Industry together with his team."

"Oh, you are an expert in the Yun-[-] project!" He Chengshan was so excited that his beard was shaking, "Who doesn't know about the Yun-[-] aircraft! That is the pride of us Chinese. It was the first time that the Yun-[-] aircraft flew to Beijing. At that time, I went to visit it specially. Why did you get off the horse after doing it? It’s a pity, it’s a pity.”

There was also a look of nostalgia on Zhang Yihua's face, but he still said calmly: "Mr. He, it is inevitable that Yunshi will be dismounted. The Yunshi project has many inherent deficiencies. Although we have overcome many difficulties and achieved 02 The successful test flight of the No. [-] aircraft, but it is still far from being finalized. There are many technical problems in the structural materials, avionics systems, engines, etc. on the aircraft that have not been overcome. With the current national strength of our country, it may be difficult to support it. So... ..."

"Understand, understand." He Chengshan nodded and said.People who engage in technology are generally more pragmatic, and they don't like to fool around like some bricklayers.A large aircraft with a take-off weight of more than 100 tons is a symbol of a country's industrial level, and it cannot be easily completed without a solid industrial foundation.Judging from China's industrial conditions at that time, it was a bit powerless to directly attack such cutting-edge technology.

"Actually, we all know the difficulty of developing a large aircraft. However, we just hope that the country can keep this project and leave some seeds. It's a pity..." Zhang Yihua shook his head gently and said.

"Then, what are you and your colleagues going to do now?" He Chengshan asked, the old man really had feelings for Yunshi, loved the house as much as he wanted, and by the way, he started to care about Zhang Yihua and his colleagues.

Zhang Yihua pointed to Lin Zhenhua and said, "No, Manager Lin said he was willing to take us in and build us a laboratory in Hanhua Heavy Industry. I also know that Hanhua has no connection with the aviation industry at all. Manager Lin's move , it’s completely unselfish and dedicated to benefiting others. But, alas, the temptation of this project is too great for us, so we have the cheek to take advantage of Manager Lin.”

Lin Zhenhua smiled and said: "Mr. Zhang, I don't like to hear your words. What do you mean that Hanhua Heavy Industry has no connection with the aviation industry? If the country restarts the large aircraft project in the future, I still expect to subcontract some projects from it. Besides, We can also borrow your aviation technology when we are engaged in chemical equipment. Didn’t you help us become a steam turbine expert today? How about it, Mr. Zhang, how about I really build an industrial steam turbine laboratory, you use it Experience in aero engines, help us to build industrial steam turbines?"

Zhang Yihua said: "No problem, the two have something in common. The country's large aircraft project may not be restarted at any time. Our team can also find some inspiration from the work of developing industrial steam turbines, which may be of great help to us. Improving aero engines can also help."

　At the request of Yixian Shuyou, the story of Yun Shi was added to the article.Regarding the merits and demerits of Yunshi, I don't want to comment, but I just use the mouth of two characters in the article to give both positive and negative points of view.Large aircraft is not the focus of this book, it is just passing through.

　　
　
(End of this chapter)