Siheyuan: Returning to 61 to collect waste

Then there are the brackets – the fixtures that attach to the roof.

The only technical requirement is to ensure that the water heater can face the sun and is stable under appropriate wind levels.

The bracket is the simplest component in structure.

At the end is the piping system, which is responsible for transporting hot water to the bathing area and returning cold water to the water tank. There are also a few devices that rely on electricity here. The motor lifts the tap water to the water heater.

Of course, even if electricity is used, the demand is very scarce and dispensable.

In later solar water heaters, common collectors include vacuum tube type and flat type.

The drawing in Ye Chuan's hand shows a graphic design.

The vacuum tube collector commonly used in later generations has excellent stability and high heat collection efficiency, especially in quickly preheating hot water in winter.

But they usually require electricity, and although the monthly electricity consumption is not large, it still costs a few cents.

Relatively speaking, the flat design preheats water slowly in winter, and it is even more difficult to supply hot water when it is cloudy or snowing heavily.

But in the real context of the 1960s, this issue did not need to be considered too much because people did not bathe very frequently.

As long as hot water of about 30-40 degrees is provided for residents to wash their faces and brush their teeth daily, it will be a pretty good facility.

Through preliminary calculations, Ye Chuan found that the manufacturing cost of this type of flat water heater was not high. If it was produced in large quantities, the cost could be controlled at around 20 yuan. By selling it at twice the price, a 100% profit return could be achieved.

The next morning, Ye Chuan drove directly to the Second Electronics Factory.

As soon as the guard at the gate saw that it was the vehicle he was driving, he quickly wrote down the license plate number, and from then on all vehicles with this license plate number could pass directly.

When Director Sun saw him coming, he didn't waste any time and immediately called the core members of the technical department to gather in the conference room.

Technical Section Chief Cao Deqing, Deputy Section Chief Yuan Guowei and several other staff members in blue technician uniforms pushed the door open and saw Ye Chuan sitting in the conference room. They all came forward to salute and greet him.

This group of scientific and technological personnel are all representatives of superb technical skills and they have a special respect for people with outstanding technical skills.

Although Ye Chuan's technology was not top-notch, he single-handedly supported the innovation of the factory's main products, and therefore won their respect and admiration.

After asking everyone to take a seat, Ye Chuan handed over the draft drawing he had drawn last night to the five colleagues present. "Wait a moment!" At this time, Director Sun stood up suddenly, making everyone feel startled. He also held a stack of white paper in his hand and distributed it to everyone.

When Ye Chuan looked closer to Cao Deqing with curiosity, he wanted to know what he was holding in his hand.

In front of them was a confidentiality agreement. Once signed, all information heard and seen in the conference room today must not be leaked to the outside world.

Ye Chuan smiled slightly. Director Sun was indeed a thoughtful person and he himself was not aware of this hidden danger.

Even in China, the technology level of this solar water heater is second to none.

But if it is leaked accidentally, it will cause immeasurable economic losses to the Second Electronics Factory.

The five technical experts fully understood the factory director's intentions.

Since entering the factory, they have had a deep friendship with Erdian and have no intention of leaking technology to the outside world.

Therefore, without much hesitation, they signed their names on the agreement without hesitation.

Director Sun collected the confidentiality agreement, carefully put it into his backpack, and immediately found a seat to sit down.

At this moment, everyone began to pay attention to the design sketches that Ye Chuan had distributed before.

They were deeply shocked at first glance - the concept in the design was extremely advanced.

No electricity, coal, or any other energy source is needed. All it takes is sunlight to convert cold water into hot water, and then adjust the water to the appropriate temperature. "Mr. Ye, consultant, can this drawing really be realized?" Cao Deqing asked with some doubt.

Ye Chuan could understand their doubts; if he were in their place, he would also be hesitant.

This set of drawings was based on technology that was ahead of its time, so it was not surprising to have some doubts. "Don't worry, it will definitely work!" Ye Chuan confidently took out the sketch he had drawn and began to explain the working principle of the solar collector.

Although he himself is not a professional, thanks to the detailed drawings provided by the system, he had studied it in depth twice last night and thoroughly understood its structure and operation.

After the explanation, everyone suddenly understood.

It turns out that the principle of solar energy is so simple, but no one has ever considered it. Coupled with the constraints of traditional concepts, no one has ever thought that sunlight can also contain energy. "So that's it! Consultant Ye's design is really outstanding!" Cao Deqing exclaimed sincerely.

Although Director Sun was still a little confused, he was very pleased to see that the technical team had clearly listened. "Chief Cao, Deputy Chief Yuan, please immediately produce a few samples according to my idea. We will conduct a trial run first. If successful, we can start large-scale production!" Ye Chuan ordered. "Consultant Ye, don't worry, we will let you see the finished product within a week!" Cao Deqing vowed.

During Ye Chuan's explanation, he also mentioned the raw materials needed for each component. These are not rare treasures that are hard to find. Most factories may have them or can easily purchase them. "Brother Sun, how is the progress of the production line that was pulled back yesterday evening?" Ye Chuan turned to ask about other matters. "Oh, I almost forgot. I originally planned to debug it in the morning, but I forgot everything when I mentioned the water heater." Director Sun patted his head generously, "Let's go over and take a look?"

Cao Deqing then asked: "Is this the improved diode radio production line we talked about last time?"

"That's right!" Director Sun comforted, and then everyone stood up happily: "Let's go and find out what's going on!" A group of seven people came to an empty production line area. The machine was completed and delivered last night, and the technical department was already closed at that time.

Director Sun personally opened the gate, and a spectacular production line was prominently placed in the factory. "Oh my God! It's so well preserved?" Cao Deqing and Yuan Guowei shouted in surprise. "Is it worth hundreds of thousands of dollars?" Ye Chuan asked with a smile. "It's worth it! I didn't expect the Japanese devils to be so kind and sell us such a high-quality production line?" Cao Deqing was full of emotion. "How is it possible! The devils sold the equipment to Hong Kong merchants, and I bought it through them!" Ye Chuan explained, laughing in his heart, how could the Japanese sell such perfect equipment? Even if they sold it, the price would be at least three or four times higher than before.

In fact, $100,000 is just money spent on some scrap metal. Although it can be started, whether it can run for a long time depends entirely on luck.

Cao Deqing and five other technical backbones surrounded the production line, touching each part as if they had found a treasure. "Team Leader Cao, there should be no problem with this equipment, right?"

"Absolutely! Consultant Ye, this machine is also among the best in all electronic factories in China. The second-generation transistor radios produced are comparable in quality to imported ones."

"Then I'm relieved!" Ye Chuan responded with a smile. "Lao Cao, when can we start production?" The factory director Mr. Sun raised the question that everyone was concerned about. "Director Sun, I will conduct a trial run first. If there are any problems, I can guarantee that a steady stream of second-generation transistor radios will be produced from this production line if we are well prepared in fifteen days!"

"It feels great!" Director Sun was excited.

Cao Deqing, Yuan Guowei and three other technicians powered the production line, carefully checked each part, and added oil to the lubricated parts.

After working for nearly an hour, Cao Deqing stroked his chin and thought for a moment, holding the instruction manual in his hand to check for potential omissions.

After a few minutes of confirmation, he called the others to gather around the operation position. "Director Sun, Consultant Ye, you can step back!"

He pressed the start button.

As the button was pressed, a roar was heard and the conveyor belt began to move slowly.

Afterwards, the five people once again paid attention to the machine's operating status.

About ten minutes later, Cao Deqing pressed another button and the machine shut down. "Lao Cao, what's going on?" Director Sun asked urgently.

Cao Deqing gave Ye Chuan a thumbs up and praised him, "Director Sun, I don't know why the Japanese are selling at such a low price, but I guarantee that the performance of this machine will remain at its peak, and the daily output will not be inferior to that of Japan!"

Qin Huairu returned to the courtyard after work, but did not go to the Yi family to pick up Xiaodang immediately.

Standing outside the courtyard gate and looking towards the steel plant, soon a smile broke out on her face.

Zhuzi stood with his hands behind his back, holding a net bag containing two aluminum lunch boxes, looking at Qin Huairu in front of the door, a happy smile on his face.

Ever since Jia Zhang disappeared from the Jia family, Jia Dongxu fell into a vegetative state, and their relationship seemed to be subtly warming up. It was a kind of happiness for him to see her waiting at the door every day.

And now Qin Huairu only needs one portion of vegetables, leaving the other for his sister to eat, and the conflict between the brothers and sisters has also eased. "Sister Qin, you came back early today." Zhuzi joked.

Qin Huairu glanced at the pillar and replied in a charming tone, "I came back because I was anxious to see you, Xiao Dangzi!"

No. 461 did not realize there was anything wrong with the words. Instead, she was grateful in her heart that the mother was so thoughtful.

Anyone with a little common sense would understand that Qin Huairu was not in a hurry to pick up her daughter Xiaodang when she returned, but was waiting for the leftover dishes in the cafeteria. This was not because she was looking forward to her daughter's early return home, but because she was worried that Sha Zhu would take the leftovers home, so she was so anxious to come back and enjoy them herself.

She picked out a box of meat and vegetables and turned around to go out to Yi's house to pick up Xiaodang.

Just like yesterday, Qin Huairu still hadn't seen the locust flowers.

After arriving home, she heated up the two steamed buns she bought from the cafeteria at noon and cooked a pot of cornmeal porridge.

She and Xiaodang shared lunch, each having a steamed bun with some meat and vegetables, with happy faces.

Soon, they had finished three bowls of steamed buns and the dishes in the lunch box, and the porridge was steaming on the fire. "Mom, I really can't eat porridge anymore!" Xiaodang said softly, pressing his round belly. "This is for him." Qin Huairu pointed at Jia Dongxu and said coldly, "It's not for you!"