Steam Daming: Stop calling me to supervise the country

Chapter 18 Reciprocating Pistons
Facing Zhang San and others who were extremely curious about knowledge, Zhu Zhanchang first analyzed the problems of the current steam, and asked people to turn on the welded steam engine.

"The piston and the inner wall of the device are not smooth enough to be as smooth as possible, otherwise it is easy to be damaged, because now the steam engine can only run for a while, so there is no damage to the piston, but my ideal steam engine should be able to run for a few days. years or even decades.”

"Young master, rest assured, we will try our best to improve this aspect as much as possible." The blacksmiths Li Si and Li Yu patted their chests and assured.

Zhu Zhanchang nodded: "In addition to this, the efficiency of the steam engine is not good now. I have an idea. Now the introduction of steam is a pipe. Next, let's make two pipes, and the other pipe is introduced into The other side of the piston."

"The two sides of the son introduce steam, and the piston will be sandwiched in the middle." Zhang San immediately asked.

Zhu Zhanchang couldn't help but admire Zhang San's imagination and insight: "Enter, but you can't enter at the same time, of course not together, but you can take turns."

"Take turns? How to take turns?"

Zhu Zhanchang pointed to the pressure relief port. At this time, after several people's continuous attempts, the pressure relief port can be opened and closed with the movement of the connecting rod.

"Master Zhang San, let me ask you, how did you determine the opening time of the pressure relief vent?"

"Many attempts to find where the piston is compressed to its innermost position."

"But only relying on the pressure relief port to release the pressure, the speed of the piston falling back is relatively slow. Now our steam engine piston moves up and down, which can be changed to be parallel to the front and rear. Another steam conduit guides the steam to the back of the piston to accelerate Its return movement, opening and closing at the same time as the pressure relief valve."

Zhang San was in distress. He thought it was feasible, but he couldn't draw a perfect picture in his mind.

Zhu Zhanchang then pointed to the existing steam engine and explained a little bit. Fortunately, his posture in this area is still solid. After the explanation, Zhang San and others have a general understanding.

Zhang San couldn't help but sigh: "Young Master is really a talented person, and he just made this improvement. If I wait to study it, I'm afraid I won't be able to complete it in three or five years."

Zheng He said: "Next, everyone will build it according to the son's ideas. If there is something that you don't understand, you will summarize it to me every day. I will go to the palace to communicate with the son every once in a while."

"Master Zheng, it's better for me to come out. Every time you have to let someone carry the iron guy into the palace, it's very inconvenient. I will leave the palace every seven days."

"That would be troublesome, son."

Zhu Zhanchang suddenly said: "Also, Master Zheng, all the masters, just study the steam engine, you don't need to worry about the experiment installed on the car."

Zheng He looked embarrassed: "But it's hard to know the effect without putting it on the car and experimenting."

"I already have a solution. I'll tell you when I go back and think about it more. The steam engine is the most important thing. There's no need to worry about the loading effect."

"Okay, just follow your words."

As long as the steam engine can turn, and the gears are connected to the wheels, it can become a rear-wheel drive car. The current technology must be connected to the rear wheels, and the principle is just like a four-wheel drive.

It is even simpler than a four-wheel drive. The four-wheel drive also uses a rod with gears to connect the front wheels to make the four-wheel drive, but the current car does not need it, as long as the rear drive is fine, and the front wheel does the steering.

Moreover, the final form of the steam locomotive in Zhu Zhanchang's mind is a train. He just wants to make the steam locomotive first for the emperor to see and seek funding.

The movement of the steam engine is too great, and the coal has to be continuously burned. The emperor can't sit on the coal pile. The steam train is the right way.

The same is true in the previous world, where steam engines were used in trains.

When he thinks of trains, Zhu Zhanchang also thinks of rails. Without rails, trains can't run, and compared with flat cement roads, the cost of rails will indeed be cheaper.

"Master Zheng, can you show me the iron smelting workshop?"

"Master, the environment in the workshop is poor, you..."

"It's okay, take me to see it."

The smelting workshops of this era, even those under Zheng He's fleet, still look like small workshops. You can see a group of shirtless men beating constantly, flaming molten iron flows out, and most of the links require manpower to complete.

Smelting is also a high-risk project. Because of the extreme heat, most workers do not wear tops or light tops. Once molten iron splashes, there is no protective effect at all.

After seeing it, Zhu Zhanchang nodded with satisfaction. Although the craftsmanship was backward, the professionalism of the craftsmen really refreshed him.

Nodding his head, he took out a pen and paper to draw a picture. Zhu Zhanchang's drawing skills are also very good, thanks to the solid foundation of the original owner of the body, otherwise Zhou Xinghe's own painting skills are basically abstract masters. class.

Zheng He looked at Tushan's railroad tracks and fell into deep thought, completely unaware of what it was.

"Master Zheng, I call this a railroad track. There are two railroad tracks. The bottom is made of wood as a base. In the future, the steam car will run on the rails."

Zheng He was even more puzzled: "Fifth Young Master, why don't you run on the road, but on the rails."

"Two advantages, one is stability, and the other is cheap."

"Oh?" Zheng He didn't think it was cheap to make rails.

Zhu Zhanchang answered his questions: "The steam car you demonstrated before Your Majesty, Mr. Zheng, did not run a long distance, but you have also seen that when it moves on the ground at its speed, if there is any unevenness, it will be very bumpy. It can be done very smoothly.”

"What about cheap?"

Mr. Zheng imagined that if a few hundred kilometers of official roads were built in the future, which would be cheaper compared to a few hundred kilometers of railways.

When Zheng He thought about it, he immediately understood that since the steam locomotive was built, it must be run all over the country. The steam locomotive obviously couldn't walk on the trails and mountains. It had to be the official road. .

Seeing Zheng He's reaction, Zhu Zhanchang continued, "Master Zheng can let someone make a section and try it out. Each piece of rail is made within the length and total amount that can be carried by manpower, and it can be connected end to end."

"Don't worry, Fifth Young Master, I will order it."

Every time Zhu Zhanchang came, he would bring them new things, and a group of craftsmen surrounded Zhu Zhanchang as a baby.

……

Zhu Zhanchang was studying the steam engine on Zheng He's side, while in the palace his fat father frowned and said, "Hey."

"Father, why bother, it's also appropriate to add some servants to the younger brothers. You can see that the two younger brothers of the second uncle's family are followed by a group of servants."

"At that time, the boys will be spoiled."

Zhu Gaochi said helplessly, but he had to obey the emperor's order: "Zhanji, go and talk to Ruowei to let her and Hu Shanggong prepare candidates, choose two maids for themselves, forget the bed warmers, they themselves There are maids, so choose two each."

Zhu Zhanji said a little embarrassedly: "Father, the fourth brother told me a few days ago that his personal maid was a bit arrogant, and he wanted to change it."

Zhu Gaochi was stunned: "What kind of arrogance?"

"Crawled on the fourth brother's bed in the middle of the night."

"What?" Zhu Gaochi was furious: "How about the fourth child?"

"Although the fourth brother is a little weaker, a palace maid can still fight. It's just because the fourth brother's face is not good for public punishment. I wanted to find a reason to punish her. This time, I just took this opportunity to change her. ."

Zhu Gaochi nodded, and seemed to have thought of something: "The fourth child really didn't let her take advantage of it."

"Should... Probably not, the fourth brother is still young, when... not yet... Well, probably not."

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(End of this chapter)