With the debugged ventilation equipment in mind, early the next morning, Zheng Peng and Ah Jun appeared in the workshop of Jinggongfang.

"Young Master."

"Young master, I haven't seen you for some days."

"Young Master, have you had breakfast?"

Zheng Peng has no shelf, he treats his subordinates and is generous, and he is very popular among craftsmen.

"Brother Feiteng, you're here, quick, enter the house." As soon as Guo Ziyi saw Zheng Peng, she didn't say a word, and pulled Zheng Peng to the house.

Guo Ziyi walked very fast, and Zheng Peng trotted to keep up.

"What about Brother Kuro, didn't you come today?"

"What's coming, a certain and Kuro have been living here these days, and they haven't gone anywhere, last night a few shafts were not very well occluded, Kuro and Lao Hu and Lao Ding they improved overnight, and they got it overnight, and the fourth watch was only lying down, forget it, let him go." Guo Ziyi explained.

I don't go back these days, I eat and live with craftsmen every day, just to complete the commissioning as soon as possible, it's hard for these two pampered guys to stay here for so long, Zheng Peng was a little moved when he heard it.

The technology and capital are all paid by themselves, Guo Ziyi and Kuro feel that they can't go, so they treat this place as their home and make up for it in their own way.

It is equivalent to Zheng Peng's money and technology, and these two people contribute.

"There's no need to be in such a hurry, just let the people below do it" Zheng Peng said with concern: "By the way, these are just side jobs, Brother Ziyi, don't miss the matter of martial arts." ”

"Don't worry, I know it in my heart" Guo Ziyi said confidently: "At the age of five, I began to train the flexibility of the body, lay the foundation, practice guns at the age of seven, and draw the bow at the age of eight. ”

Zheng Peng nodded when he heard this, and said happily: "It's good not to delay Brother Ziyi's training." ”

For example, when someone is nervous, they are prone to make mistakes, and on the battlefield, people who are not strong enough in their hearts will be frightened when they see the enemy rushing up, and they can only exert three to four percent of the strength of 100,000 forces, and it is strange if they do not lose; But a veteran soldier who has been on the battlefield for a long time is very eager to fight, and when he sees the enemy, he becomes excited, mobilizes the potential in his body, and bursts out with more powerful power than usual.

This is the breakthrough of the state of mind.

In the middle of his thoughts, Zheng Peng was pulled by Guo Ziyi to a small side hall and sat down.

Originally, I wanted to say that I would see how the ventilation equipment was doing, but Zheng Peng inadvertently looked at the fan installed on the wall, and quickly stopped.

Obviously, this room is the testing ground, and Guo Ziyi can't wait to pull herself here, just to show the fruits of their labor these days.

"You're all set, aren't you?" Zheng Peng asked with a smile.

"Of course" Guo Ziyi said with some excitement: "Brother Feiteng, just wait for you to experience it, if it's okay, hehe, it's done." ”

Zheng Peng said generously: "Okay, let's see how you fiddle with it." ”

After Zheng Peng sat down, Guo Ziyi began to order: "Lao Ding, look at you." ”

"Hey" Lao Ding hurriedly responded, and then gently pulled the rope on the side of the wall, faintly heard a "ding" sound, and the fan blades on the wall began to slowly turn.

"Huhu" "Huhuhu" The faster the fan blade turned, Zheng Peng, who was sitting opposite the fan blade, felt a cool breeze blowing on his face, just a moment of effort, and the sweat on his face and body was dried.

Zheng Peng nodded secretly, but there was nothing on his face, and he said quietly: "Just so fast?" ”

Lao Ding hurriedly said, "Young Master, it can be faster, you wait a minute." ”

As he spoke, Lao Ding pulled the rope twice, which was a signal to speed up, and soon, the fan blades on the wall turned quickly, and Zheng Peng felt that the curtain on his head was blowing.

After estimating, he was about two zhang away from the fan blades, about six meters, and he could still feel this kind of wind at this distance, just by manually rotating it, which was beyond Zheng Peng's expectations.

The principle of the fan is actually very simple, it uses the rotation of the fan blades to supply air, the difference is that now it is carried by hand, and in later generations, it is equipped with a motor and driven by a motor.

Feeling the wind, Zheng Peng deliberately didn't stop, just wanted to see how long the wind of this strength could last, but he didn't expect to wait for a quarter of an hour, and the wind supply was still very stable.

"Yes, the wind is strong enough, and it's practical, you can stop." Zheng Peng said.

Stop and just take a look at the structure.

The fan is driven by a belt, and the rotation of the shaft converts the manpower into the rotation of the fan blades, Zheng Peng saw it and realized that Lao Ding took into account the stability problem in the design, and set up two transmission devices, which can be operated by a single person or by two people, so that the wind output is more stable.

Considering the lightness and technical problems, the fan blades are made of wooden planks and inlaid with iron sheets at the joints, which can increase durability and play a decorative role.

Lao Ding whispered on the side: "Young master, according to what you said, there are two ways to drive, hand-cranked and foot-cranked, and now it's just a hand-cranked version." ”

It's very thoughtful, and it's really worthy of the old line.

Zheng Peng nodded with satisfaction, and then said directly: "Okay, this set of bright ventilation equipment is considered to have passed the test, and what about the dark one?" ”

"Young master, that set of dark ventilation equipment has begun," Lao Hu said with a flattering face.

Zheng Peng looked around, and soon found a strange sound: first of all, there were a few more pipes to supply air around, that is, where he was sitting, under the coffee table, there was also a section of pipe, and the wind was constantly blowing out of the pipe.

In fact, the wind conveyed by the dark pipe is very small, and you can only feel the constant wind, and you can feel the feeling of being surrounded by a fresh breeze while sitting on the sidelines.

Especially now that the weather is hot, the wind blowing out of the pipe is cool, sitting on the side has a feeling of no wind automatic, the breeze is coming slowly, Zheng Peng sat for a while, and then followed Lao Hu to see, just to see a servant working hard to turn the wind cabinet.

It is to use this kind of wind cabinet rotation to make air, enter the pipe through air pressure, and then gush out from the pipe, and suddenly achieve the effect of air supply and humidity.

Both are air supply cooling equipment, but the two are completely different.

The fan is driven by a belt, which is windy but noisy, and there is a "creaking" and "creaking" sound when rotating; With a tube type of air supply, the wind is small, but it is very quiet, and sometimes it needs to be quiet to hear the wind conveying.

In general, the fan is suitable for some places with low environmental requirements, such as lobbies, conference rooms, etc., while the tubular air supply equipment is suitable for some secret rooms and study rooms, especially when practicing calligraphy and painting, which is more suitable.

These two simple air-making equipment, compared with the air conditioners, refrigerators, and various water-cooling equipment of later generations, are simply crushed, but the problem is that now it is Datang, which is very backward in science and technology, with no electricity, no motors, and no various refrigerants.

In later generations, the two were hundreds of kilometers apart, and if there was a phone call, if no one answered after making several calls, they both felt that the other party was too slow; But this matter is in Datang, and it is necessary to notify people hundreds of kilometers away, and it is good to send a letter for three months and have a response, even if you send someone to go, it will take a few days to ride back and forth.

There is simply no comparison.

These ventilation and cooling equipment are not bad in Datang, and Lao Hu and Lao Ding's skilled craftsmen admired Zheng Peng's whimsical ideas.

Zheng Peng was also very satisfied with Lao Hu and Lao Ding, and did everything he asked to do, there were many details that he didn't pay attention to, and after they found out, they took the initiative to improve and improve them.

"How is it, Brother Feiteng, are you okay?" Guo Ziyi asked a little nervously.

Zheng Peng nodded and said, "Yes, very good." ”

There was a burst of applause and cheers at the scene, and Guo Ziyi said happily: "Brother Feiteng, then can we make money by doing this?" ”

Seeing that her hard work was finally recognized and affirmed, even Guo Ziyi also had a sense of relief and pride.

"Of course" Zheng Peng said with a smile: "Brother Ziyi, we are not in a hurry to make money first, these are new things, many people don't know, rashly run to promote, it is estimated that it is difficult to convince people, it is better to make a few models first, and wait for everyone to know that there is such a delicate thing, publicize it, and then we don't need to go to the guests, the guests take the initiative to find the door." ”

Guo Ziyi nodded when he heard this: "Brother Feiteng is still thoughtful, just according to what you said." ”