my scientific age

Chapter 168 Submerged arc welding hunger!

Her face was plump, her eyes were as dazzling as the scorching sun, but she was as peaceful as the flow of water, her demeanor was calm, and she showed everyone's demeanor. Lin Wan's heart was full of shock. She never imagined that as the top leader of the northern department, a professor comrade would appear in the here.

The reason why she recognized Comrade Professor was because she had escorted the complete red secret deciphering materials to Tianjin before, and was received and rewarded by the three core figures in the northern part.

Comrade Professor, why are you here?

Could it be that……

For a while, Lin Wan's thoughts flew.

Feeling Lin Wan's strangeness, Yu Hua looked in the direction Lin Wan was looking at. Seeing the middle-aged man walking slowly, he was a little puzzled. Is this Lin Wan's father?
Careful comparison of the appearance, it does not seem to be very similar.

"Miss, my family arranged for me to pick you up and protect your safety. Peking has been very chaotic recently." Comrade Professor came to the two of them, with a warm smile from his heart on his face, greeted Lin Wan with a standard housekeeper attitude, slowly said.

Seeing the comrade professor who pretends to be a housekeeper, Lin Wan's heart is messy, and she immediately understands the meaning of the other party's concealment of her true identity. The housekeeper's name is Liu Wei, you can just call him Butler Liu."

There is indeed a housekeeper in her house, and the housekeeper is indeed called Liu Wei, but the housekeeper Liu Wei and this 'Liu Wei' are not the same person at all.

housekeeper?

excuse me.

Hearing this word that has never been in contact with the upper class, Yu Hua immediately understood the identity of the other party, silently apologized for his shallow world, smiled, and bowed his hands: "Hello, Butler Liu."

"Hello, classmate Yu, I heard the lady often talk about your deeds and talents, and I was fortunate enough to read your mathematical paper published in the Tsinghua Journal. It's the first time we met, please forgive me if the reception is not good." Liu Wei looked at Yu Hua with a smile on his face, and bowed his hands in return.

In the polite words full of compliments, there is no life or separation, revealing a sense of authenticity.

Hearing the words of this housekeeper Liu, Yu Hua only had one feeling in his heart-comfort.

See what people say?
The words are full of scholarly family tastes, but there is no feeling of superiority. While greeting politely, they not only express their identity, but also express their intentions for the guests.

Of course, he was not a guest of any kind.

"Butler Liu is overrated." Yu Hua smiled.

Liu smiled and looked at Lin Wan and Yu Hua with gentle eyes like water: "Miss, classmate Yu, this is not the place to talk, please move to the car."

"I have a few more questions about the seven-tower installation. Let's enjoy a cup of tea?"

When Lin Wan heard this, she turned to look at Yu Hua and asked, there are many people at the school gate, so it is not suitable for chatting and discussing matters, and looking at the posture of 'Butler Liu', it seems that he is rushing towards the seven-tower-style installation.

It's time to test your acting skills.

"It is better to be respectful than to obey." Yu Hua, who dared to refuse the request of the angel investor, smiled.

"Miss, Yu Hua, please come with me." Seeing Yu Hua agree, Liu Wei said, turned and led the two away from the lively school gate.

Two young men on alert were guarding them. The three pushed through the crowd and walked out to meet two Buicks parked by the road.

The two Buicks were neatly parked, and a young man with sharp eyes stood beside him. Looking at this scene, Yu Hua had a new understanding of the wealth of Lin Wan's family.

Buying two cars during the Republic of China was not an ordinary one. Ordinary wealthy families could not afford the cost of two cars.

The family is rich and good-looking. He can be called a genius. His true identity is still a member of the revolutionary organization, and he has participated in the [-] Movement.

It is also a second-generation rich girl, Lin Wan, a girl from the Republic of China, is not even a little bit stronger than the second-generation female wealthy women of later generations.

"Please!" Liu Wei came to the second car, opened the rear door, bowed slightly, and motioned to Lin Wan and Yu Hua to get in the car.

The two nodded and got into the car. Liu Wei sat in the co-pilot. The two accompanying young people and the young man standing guard took the first Buick. With the roar of the car engine, the two Buicks quickly drove away from Chongde Middle School. Follow the road to the south of the city.

"Lao Liu...Lao Liu, has the money I asked for for the family arrived?" Lin Wan looked at Liu Wei in the car, and called out to Lao Liu rather unaccustomed to the matter of borrowing money.

Liu Wei, who was sitting in the co-pilot, replied: "It's already here. It's placed in the yard where I live. According to your request, Miss, all the oceans are now. Recently, the devaluation of the French currency has become more and more worthless. There is a lot of loss in exchanging these oceans. ."

"That's good, Yu Hua, the money is in place, how will you get it tomorrow?"

When Lin Wan heard this, she breathed a sigh of relief. She knew that [-] oceans was a lot of money for the organization, and she looked at Yu Hua with clear eyes like a clear spring.

How can I get 5000 yuan in cash?
I take it by hand.

Yu Hua shook his head gently, opened his schoolbag, took out a pre-written piece of paper, and handed it to Lin Wan: "The money is temporarily put there for you, this is a list of the equipment and materials you need, take a look, is there any relationship and how to buy it? To these equipment? Centrifugal pumps and submerged arc welding equipment and fluxes have the highest priority.”

The entire list lists the equipment required for the development of the seven-tower device, with a total of [-] types, of which the most difficult to purchase are industrial-grade centrifugal pumps, submerged arc welding machines and fluxes.

Centrifugal pump is the key auxiliary equipment in the seven-tower device. It is used to continuously transport water to the reaction tower. The flow rate is about 30 cubic meters per hour. The Republic of China can only produce centrifugal pumps with small flow rates, and the quality is unreliable and the service life is short. , need to import equipment.

Submerged arc welding machine and flux are mainly used for welding pressure vessel connections to ensure that the reaction tower meets the design standards.

The core reason why this seven-tower device can produce more than foreign tower devices is the internal pressure of the reaction tower. To realize the dream of producing 22 tons per day, a submerged arc welding machine must be used.

Welders are not suitable for welding pressure vessels.

The super pie with an annual output of one million tons of sulfuric acid has already been drawn for Lin Wan, and now all she has to do is to start from the most basic places.

In the early stage, first buy equipment and manufacture prototype seven-tower devices, and later develop equipment and self-manufacture to achieve mass production of seven-tower devices.

Of course, if a deal with Rabe for a technology exchange can be reached, the problem of manufacturing centrifugal pumps and submerged arc welders will be solved.

Lin Wan took the light yellow paper, and after reading the list of equipment and materials, as well as the required quantities, she frowned slightly and said, "I don't know much about these equipment, so I need to show it to Steward Liu. The housekeeper is one of the people I trust the most, I can tell him about the seven-tower installation, don't worry."

"no problem."

Hearing this, Yu Hua nodded.

"Old Liu, take a look." Lin Wan shouted at Liu Wei and handed over the paper.

Liu Wei took over the list of equipment materials and browsed through it. He knew two of the sixteen equipment materials, and the others were very unfamiliar. He shook his head gently: "Miss, I don't know much about these, and I need to arrange the following people to investigate. , it will probably take some time.”

"Yu Hua, I'm sorry..." Lin Wan's face showed a helpless look at this answer.

"It's okay, it's nothing at this time." Yu Hua shook his head, it's normal to not understand technology, if this Butler Liu knows technology very well, then he will feel strange.

"Student Yu, do you have to use the above equipment? That is to say, you can't do it without one?" At this moment, Liu Wei suddenly asked.

"Yes, if any one is missing, the seven-tower device on the drawing cannot appear, such as submerged arc welding machine and flux, without this equipment, we cannot process the reaction tower that meets the design requirements, welding with electric welding machine, If the pressure of the reaction tower does not meet the standard, the actual output will be greatly reduced." Yu Hua nodded and explained.

After the words fell, Lin Wan and Liu Wei understood the importance of these devices.

Liu Wei already had a general idea in his heart, with a serious face, nodded: "I understand, I will let the people below do it as soon as possible, and quickly reply."

"Ok."

Yu Hua smiled and nodded.

The scenery outside the window quickly receded. As the city continued to move towards the Nancheng District, the Peiping City gradually became dilapidated. Most of the pedestrians were dressed in rags, with dirty faces, few people in robes and jackets, which was completely different from the dignified and noble in the Xicheng District.

Yu Hua quietly stared out the window, feeling in his heart that this is Peiping belonging to the lower class, and Peiping where the poor gather.

After a while, the two Buick cars left the main road and drove into a narrower road. The surrounding streets were much cleaner. Then they stopped steadily in front of a teahouse with simple decoration, and everyone got off.

"This is my family's property." Lin Wan smiled at Yu Hua.

rich……

Yu Hua sighed in his heart.

Everyone entered the teahouse, but there were not many people inside. They entered the private room and asked for a pot of Biluochun.

(End of this chapter)