Otaku Engineer in Great Tang Dynasty

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There have been three very important industrial revolutions in human history. The first was in the mid-1860s. The technological revolution initiated by the United Kingdom was a huge change in the history of technological development. The steam engine was widely used as a power engine, which promoted the world from The handicraft era has entered the "steam era";

The second industrial revolution occurred in the last 30 years of the 19th century and the beginning of the 20th century. The industrial focus shifted from the light textile industry to the heavy industry, and new industrial sectors such as electrical, chemical, and petroleum emerged, and the world entered the "electrical age" from the "steam age". ;

The third industrial revolution occurred after the 1940s and 1950s, and major breakthroughs were made in the fields of atomic energy, electronic computers, microelectronics technology, aerospace technology, molecular biology and genetic engineering, marking the arrival of a new scientific and technological revolution. Among them, the most epoch-making significance is the rapid development and wide application of electronic computers, which has opened up the information age!

These three industrial revolutions are actually accompanied by power revolutions, from the initial steam engine, to the internal combustion engine, and then to the electric power behind. Each power revolution will bring more advanced productivity and greatly improve the production efficiency of society!

Looking closely at the changes Li Zexuan has made in Datang over the past year, we can see that he skipped the two processes of steam engine and internal combustion engine, and directly launched the third power revolution in the original history - electricity!

But some things can be bypassed in a short time, but they cannot be bypassed for a lifetime, especially things as important as steam engines and internal combustion engines. Human society does not say that all steam engines and internal combustion engines will be eliminated when there is electricity. Even in the modern society with developed electricity in the 21st century, there are still active figures of steam engines and internal combustion engines. For example, fuel vehicles on the streets are used. Internal combustion engines, such as thermal power plants, are still using steam engines!

These two things are the cornerstone of the progress of human productivity and are absolutely indispensable!

"A thermal power station? Chief, the book "Physics" says that magnetism can generate electricity, but can fire also generate electricity~?"

In the laboratory, after hearing Li Zexuan talk about the construction of a thermal power station, Li Tai was shocked and puzzled.

Li Zexuan smiled and said, "Of course, fire can't generate electricity directly, but it can generate electricity indirectly through energy conversion, just like the Bahe Hydropower Station. Can you say it's aquatic electricity? No! It's because water power drives the waterwheel. The impeller drives the rotor of the generator to cut the magnetic field lines, so electricity is generated! The same is true for this thermal power station~!"

Li Zexuan's orderly and seductive words touched Li Tai greatly. After a moment of silence, Li Tai said excitedly: "Shan Chang! I understand! You said earlier that the energy in the world is conserved and can be transformed into each other. Yes! This thermal power station must also convert thermal energy into kinetic energy, and kinetic energy into electrical energy! Just like a hydropower station!”

Li Zexuan nodded in approval and said, "Qingque, you guessed right, this thermal power station is indeed similar to a hydropower station in essence!"

"Lord Shan, but fire doesn't flow like water, how does it generate kinetic energy~?"

Li Tai did not feel complacent because of Li Zexuan's praise, but frowned and asked aloud.

"Well! This is the most technical problem that the thermal power station needs to overcome~! Qingque, bring a pen and paper!"

Li Zexuan said lightly.

He wanted to take advantage of this opportunity to simply let Li Tai build a steam engine. Although according to his original plan, he planned to let the students discover the principle of steam generating power, but now is the time to wait. The national war is imminent, and the construction of telegraph relay stations and small thermal power stations is imperative!

Moreover, there are skilled craftsmen, advanced machines, and rubber materials necessary for making pistons. The conditions for making steam engines are already mature. In this case, there is no need to hide them. Li Zexuan intends to directly use the steam engine today. Hand over the blueprints to Li Tai!

"Yes! Mountain Chief!"

Hearing that Li Zexuan was going to "open a small stove" for himself, Li Tai responded cheerfully, and then quickly turned around to look for the pen and paper. Soon, he returned to Li Zexuan's side with the pen and paper, and respectfully said: "Shan Chief , give you a pen and paper!"

"Um!"

Li Zexuan took it, put the pen and paper on the test table, and without saying a word, he started to write and draw. After a while, he said, "Qing Que, have you ever seen what happens when the kettle boils water?"

"Naturally I've seen it!"

Li Tai frowned, although he was a little puzzled, he still replied.

"Hehe! That's good!"

Li Zexuan smiled, then quickly drew a stove and a kettle on the paper, while he gestured, he said: "When the water in the kettle boils, the water vapor will push the lid to reciprocate up and down. Think, can we add some connecting rod transmission mechanisms to convert this up and down reciprocating motion into circular motion, so as to drive the impeller of the generator to rotate and generate electricity?"

Hearing this, Li Tai was stunned for a moment. Li Zexuan's whimsical idea opened the door to a new world for him, which made his eyes bright and suddenly enlightened. The doubts that had plagued him before were all solved at this time. ! So he looked at Li Zexuan and couldn't help but admire him. In his heart, although Li Zexuan was not an immortal, he was better than an immortal, because Li Zexuan seemed to be omnipotent!

After a long time, Li Taicai came back to his senses and sighed: "Wonderful! Wonderful! Wonderful! Using water as a medium, the heat energy in the fire can be subtly converted into kinetic energy, so as to drive the generator to generate electricity. Your idea is too much. Wonderful!"

Li Zexuan

He smiled, but the pen in his hand didn't stop. He continued to draw and said, "Qing Que, after you know the principle of thermal power generation, the most important thing is to create a machine that can convert fire power into power. I care about this thing. It's called a steam engine!

You see here, the steam engine is mainly composed of the cylinder, the base, the piston, the crank connecting rod mechanism, the spool valve steam distribution mechanism, the speed regulating mechanism and the flywheel. In the steam boiler, the fuel combustion process makes the water boil into steam, and the water vapor passes through The pipeline is sent to the cylinder, and the valve can control the time when the steam reaches the cylinder. It enters the spool valve chamber through the main steam valve and the throttle valve, and is controlled by the spool valve to alternately enter the left or right side of the cylinder to push the piston to move.

The steam pushes the piston in the cylinder to do work, and the cooled steam is introduced into the condenser through the pipeline to re-condensate into water, thus forming a complete closed loop! "

Through a few simple schematic diagrams, Li Zexuan explained the general structure and operation principle of the steam engine to Li Tai. He opened his eyes and began to imagine the specific structural model of the steam engine in his mind.

Seeing this, Li Zexuan did not interrupt Li Tai's meditation, and silently began to draw three views of the improved version of the steam engine on the blueprint. Of course, what he drew was the improved version of Watt's steam engine!

Many modern textbooks (history books, physics books) say that Watt is the inventor of the steam engine, which is actually not prepared. In fact, the steam engine was independently invented by the British Saville in 1698 and Newcomen in 1705. It was originally used for pumping water in mines, but the efficiency was very low.

In 1765, on the basis of repairing the Newcomen engine, Watt made major improvements to the steam engine, separated the condenser from the cylinder, invented the crankshaft and gear transmission and the centrifugal governor, etc., which modernized the steam engine and greatly improved the steam engine. s efficiency.

Even in the modern age of the 21st century, Watt's technology is still used in many steam engines, which is enough to see that Watt's improved steam engine was still very advanced and practical. Use, and will set off a dynamic change in this era!

Like Li Tai, Li Zexuan also closed his eyes, and a three-dimensional model of a watt steam engine quickly appeared in his mind. However, unlike Li Tai, although Li Zexuan closed his eyes, the pen in his hand was on the rice paper. Shaking rapidly, this is not scribbling, but copying the three-dimensional model of the steam engine in his mind on the rice paper!

Although the structure of the steam engine is not simple, Li Zexuan's martial arts strength has reached the late stage of the master, and his spiritual power is far beyond the past. There is no problem in building a steam engine model in his mind!

"Sashasa~!"

For a while, the only sound in the laboratory could be heard rubbing the tip of the pencil against the paper.

After about half a cup of tea, Li Tai finally recovered from his meditation. When he opened his eyes, he was shocked. God, what did he see?

What he saw, Li Zexuan actually closed his eyes and drew on the paper? Li Tai quickly leaned over to take a look, and saw a neat, horizontal and vertical engineering drawing on the rice paper with dimension scales from Li Zexuan's nib on the paper. Li Zexuan's nib turned so fast that Li Tai even Only a phantom could be seen, and then with the rotation of Li Zexuan's pen tip, the lines of the engineering drawing on the rice paper gradually increased, and it had become a real steam engine model!

Seeing this scene, Li Tai was shocked!

He can draw and has also drawn engineering drawings in this style, but when he draws, he draws carefully with a ruler. How can Li Zexuan just "believe the horse" on the drawings with his eyes closed?

That's all. The point is that although Li Zexuan didn't use a ruler to draw, his lines were straighter than anyone else's, and his proportions were more accurate than anyone else's. Of course, the most disappointing thing was his painting speed. It simply broke through the sky and was daunting!

This is the first time that Li Tai has seen Li Zexuan draw drawings. Of course, this is also the first time that Li Zexuan has revealed his stunt in front of outsiders! !

The scene of Li Zexuan closing his eyes tightly and swaying freely on the rice paper was deeply engraved in Li Tai's mind, which may make him unforgettable for the rest of his life!

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