Putting down the phone, Geng Zhiyuan said helplessly to Zhang Shulin: "Wang Gong said, we have to wait." ”

Zhang Shulin had long expected such a result, he walked around the room a few times with his hands behind his back, sighed and shook his head: "Your courtyard ...... It's not going to go on like this. ”

"Yes, compared with the work done by the ministry, there is a gap in the depth of the drawings of your hospital. Liu Ruogu also sighed beside him.

"The gap is quite large. Zhao Liangsheng took the opportunity to complain: "Everyone is computer drawing, you still draw by hand, and the accuracy of the material is much worse." ”

"It is better to rely on others than on yourself. Zhang Shulin slapped the table and said, "That's it, let's check the pipeline materials ourselves, and finally let your hospital approve it." As for the pipe of the oxidation furnace, I will talk to Wang Pingtong. ”

"Wang Ping should be asked to come here as a construction service representative, so as not to make Xiao Geng in the middle of the dilemma. Li Ying said indignantly.

Zhang Shulin sneered: "If we have construction services here, we can't take on new projects, and if we can't take over projects and can't earn bonuses, how can he be willing to come? Otherwise, we can send Xiao Geng to replace them?"

Geng Zhiyuan could only listen to the complaints of everyone in the factory and was speechless, he had just joined the work, the design had not yet started, and the nitric acid project was not involved, and he could only be a microphone on the spot, unable to solve the actual engineering problems encountered.

Zhang Shulin did what he said, and on the same day, he took the piping diagram, pipe section table and comprehensive material table, and checked the materials against the drawings one by one. Geng Zhiyuan took the opportunity to follow him to look at the drawings, and humbly asked for advice on many things he didn't understand.

"Xiao Geng, look. Zhang Shulin took out a comprehensive material table and said: "Your material table does not indicate the manufacturing standard for the elbow and tee, what if you buy the wrong one? ”

Geng Zhiyuan took a closer look at the material table, and the content in the "standard number or drawing number" column of pipe fittings such as elbow tees was indeed blank.

"Did you forget to fill it in?" How could such an important thing not be written? Geng Zhiyuan guessed.

Zhang Shulin smiled and said: "I asked you Manager Liang, and he said that you don't write, only write the standards adopted in the project description." ”

"This ......" Geng Zhiyuan was dumbfounded, this mistake was a bit big, even if he wanted to, he couldn't make up for it.

"Look at the material table of the compound. Zhang Shulin took out a few sheets of materials from the drawer and handed them to him.

Geng Zhiyuan took the table and carefully checked it page by page, and the nominal diameter, wall thickness, material number, and standard number of the pipe fittings on the table were clearly written.

"What does this SCH40 mean?" Geng Zhiyuan asked, pointing to the material table.

Zhang Shulin glanced at it: "That's the tube number, which represents the thickness of the wall." Here, you can see 12459 to understand. ”

Geng Zhiyuan took the GB12459, and the cover read "Steel Butt Welding Seamless Pipe Fittings", he flipped through the pages one by one, and the more he looked at it, the more shocked he became: "It turns out that just one pipe material has so many things to learn." ”

"It's just the seamless fittings standard, there's also GB13401 welded fittings standard. Zhang Shulin carefully explained: "There are not many types of materials used in nitric acid, mainly 20 steel and 304 stainless steel, and then aluminum and high silicon cast iron used in concentrated nitrate. ”

Geng Zhiyuan hurriedly took out his notebook and wrote it down, Zhang Shulin said with a smile: "Don't remember, work is different from school, and you don't need exams." You actually use it the last time you remember it. ”

Geng Zhiyuan smiled embarrassedly, and took the opportunity to ask: "Mr. Zhang, which standard was the flange you showed me last time?"

"There's more to it on the flange. Zhang Shulin took out a thick green skin standard and said: "This is a common flange standard HG20592 in our chemical industry, which has plate flanges, flat welding flanges with necks, butt welding flanges with necks, loose flanges and so on." ”

Geng Zhiyuan took 20592 and took a look, my mother! When will I finish reading such a thick book?

Zhang Shulin was surprised when he saw him, and said with a smile: "Didn't I just tell you, work is not school, and there are many standards that need to be seen to do design. ”

"Don't look at it...... How could it be?" Geng Zhiyuan wondered.

"It's not that you don't read it, it's that you don't have to read it the way you read books in school. Zhang Shulin pointed to the HG20592 and said: "For example, this standard is equivalent to the gun in the hand of a soldier when he goes to the battlefield, you can use it, and the more skilled you are, the better." ”

Geng Zhiyuan still didn't understand a little, Zhang Shulin sighed: "This is the embodiment of no work experience, and you will understand it when you use it once." ”

Liu Ruogu said on the side: "Xiao Geng, if you take out the strength to deal with the school exam, it will be troublesome, why? This flange standard, in addition to the 20592 of our chemical industry, also has the standard of the Ministry of Machinery and the standard of the petrochemical industry." With so many flange standards to learn, when do you want to be a head?"

Geng Zhiyuan realized: "Do you mean that I can use this standard to choose flanges, and I don't have to memorize the content in it?"

"Hey, that's right!" Liu Ruogu said with a smile: "Why are you carrying it? The standard is at hand, and it's not that you won't be allowed to see it, just remember the key things." In the future, when you use it well, some things will naturally be remembered. ”

"Oh, I see. Geng Zhiyuan looked at the standard, suddenly sighed, pointed to the second half of the standard, and said, "Why is there the same flange before and after?"

Zhang Shulin took it and took a look: "Oh, the front is the European system, and the back is the American system, the system is different, but the flange form must be there, so the same type of flange has before and after." ”

"The European system, the American system?" Geng Zhiyuan was confused again.

Liu Ruogu laughed and said, "Lao Zhang, you taught him so much at once, don't you teach Xiao Geng stupidly?"

Zhang Shulin was dissatisfied: "This is quite a lot? What I said is common sense, and at least common sense must be understood to do design." ”

"Then you quickly tell him the difference between the European and American systems, and the province has confused other people's children. Liu Ruogu said kindly.

"The so-called European system and the American system are the metric system and the imperial system. Zhang Shulin explained: "The metric system is the meter, kilogram, and cubic meter that we commonly use, and the imperial system is the inches, pounds, and gallons that the United Kingdom and the United States like to use. Most countries in Europe use metric units, such as Germany and France. The countries that adopted imperial units were mainly the United Kingdom and its former colonies. ”

Geng Zhiyuan probably figured it out, but he received too much knowledge at once, and his mind was a little confused.

"Your institute only has a process major, and the compound is subdivided into system, process, pump, pipe, pipe and pipe machine specialty. One of you is equivalent to doing the work of five or six people, and people's energy is limited, so naturally they are not as fine as others. Zhang Shulin explained.

At the end of the day, Geng Zhiyuan was in a very heavy mood, and there were so many things to learn in chemical design, which only made him feel like a big head.

Seeing that he was afraid, Zhang Shulin smiled and encouraged: "Don't worry, I heard Kang Zhengduo, the chief engineer of your college, say that students who enter the design industry have to go through four stages. ”

"Four stages?" Geng Zhiyuan said curiously: "Mr. Zhang said to listen to it." ”

Zhang Shulin continued: "Speaking of the first stage of entering the industry: my eyes are black, and I don't understand anything. For example, if you have just joined the work and come into contact with design, you don't know anything about standards, specifications, drawing and calculation, and the knowledge you learned in college can't even make you understand what a flange is. ”

Geng Zhiyuan couldn't help but nod and said, "Yes, it's similar to my current mood." ”

Zhang Shulin smiled and said: "The second stage: the newborn calf is not afraid of tigers, and dares to do anything." After a year or two of work, you'll find that design is nothing more than that, it's very simple. Isn't it just to check the norms and flip through the standards? What's so difficult? It's okay to do any project. ”

"Will I be like this?" Geng Zhiyuan couldn't believe that he would be able to master chemical design in a year or two.

Zhang Shulin continued: "The third stage: looking back at dusk, I was shocked into a cold sweat. Five or six years later, when you really understand the connotation of design, you can't help but break out in a cold sweat because you didn't think about your previous design. Oh, that's what the design looks like, or it's a little sloppy. ”

"The fourth stage: grasp the true meaning and sway freely. I don't know how many years later, when you finally understand the various connotations of this major, you will have a feeling of seeing the mountains at a glance. After Zhang Shulin finished speaking, he sighed with emotion: "I don't dare to say that this fourth stage has been reached, I can only say that it is still in the third stage." ”

Geng Zhiyuan was stunned for a while when he heard this. He now doesn't say that he must be in the first stage of not knowing anything, Lao Zhang has been working for decades and modestly said that he is in the third stage, and he doesn't know if he has the opportunity to become an industry elite in this life.

For a whole week, Geng Zhiyuan followed Zhang Shulin to study pipeline materials carefully. After Lao Zhang checked the material table, Geng Zhiyuan had to take it over and study it again by himself. A week passed in a flash.

It's Friday again, and as soon as I got off work at noon and entered the guest house, the front desk waiter smiled at him and said, "Geng Gong, Teacher Wei from the town middle school came to look for you last night." ”

Geng Zhiyuan's heart ached, and he pretended to ask casually, "Is there something wrong with her looking for me?"

The waiter said, "I didn't say it, she said that she would come to you at noon today." ”

Geng Zhiyuan scratched his head, the image of the goddess had been disillusioned, and Wei Xiao was no longer as important in his heart as before: "A scheming girl, if she wants to come to me, let her go, can she still eat me?"

Geng Zhiyuan finished lunch casually, got up and was about to go back to his room, but saw Wei Xiaoting standing at the door of the restaurant, looking at him with a resentful expression.

Geng Zhiyuan had nowhere to hide, so he stepped forward patiently, and forced a smile: "Have you eaten?"

Wei Xiao's cheeks were even thinner, and his smart eyes lost their former brilliance, and he replied softly, "Eat...... I want to talk to you. ”

"This ......" Geng Zhiyuan had the heart to refuse, and he was afraid that Wei Xiao would be embarrassed in public, so he pondered for a while: "Then go to my room?"

Wei Xiao is a girl's house, where is she willing to go to Geng Zhiyuan's room, her face is slightly red and said, "Your room is not convenient, let's go to the garden." ”

There is a small garden next to the guest house, which is quite elegant and tidy, and often family members bring their children to play. Geng Zhiyuan and Wei Xiao came to the garden one after the other, Wei Xiao found a bench in the corner and said, "Let's sit there." ”

Geng Zhiyuan didn't know what kind of medicine was sold in Wei Xiao's gourd, so he nodded and said in a muffled voice: "Okay." ”