novelAbuy Page 277
Page 277
Looking back at the smaller and smaller Chang'an City Wall.
Li Ke knew that when he came back next time, the situation might be quite different!
PS: The first update! .
Chapter 259 Leader of the Industrial Revolution!The steam engine can change the world!
It will take days to manufacture the parts for the firing pin gun, and it will take time to produce the nitrocellulose gunpowder.
During this time, Li Ke naturally wouldn't just wait.
He came to the steam engine workshop, and he had arranged for some craftsmen to study the steam engine here.
As soon as he entered, he saw a human-sized steam engine emitting white smoke.
And the roulette connected to the steam engine is also spinning rapidly.
Naturally, this white smoke is not a fire, but the steam from the exhaust port of the steam engine.
"See Your Highness!"
Seeing him coming, the principals and craftsmen of the steam engine workshop saluted him one after another.
"This steam engine looks good."
Li Ke just glanced at it briefly, and he could see that the steam engine had succeeded.
Using the physical principle of air expanding with heat and contracting with cold, the steam engine is constantly doing work.
"Your Highness, the principle of air expanding with heat and contracting with cold is really amazing!"
The head of the steam engine and the craftsmen were very shocked and surprised to Li Ke and exclaimed.
Before, Li Ke explained to them the principle, design and internal structure of the steam engine before returning to Chang'an.
At that time, they still couldn't believe that without relying on any power, they could simply inject hot steam into the cylinder of the steam engine, and then the steam engine could continue to move.
After all, they have known for so many years that some objects do expand with heat and contract with cold. They are larger in summer and smaller in winter.
But I didn't think that air can also expand with heat and contract with cold. The most important thing is that I can't believe that only relying on the expansion and contraction of air can generate huge energy.
It's just that what Li Ke said every time, no matter how amazing it is, will prove Li Ke is right in the end.
Therefore, after Li Ke returned to Chang'an, they began to study according to the principles explained by Li Ke.
Strictly following the drawings drawn by Li Ke, they first built a small steam engine.
The water is then boiled, and water vapor is injected into the cylinder of the steam engine through a closed pipe.
There was no reaction at first, but soon they saw a scene that shocked them extremely.
Without any push or assistance, the disc connected to the outside of the steam engine started to rotate by itself!
Moreover, the rotation is continuous, as long as the steam is continuously injected into it, the steam engine can continue to rotate!
As the amount of water vapor injected increases, the steam engine does more work and rotates faster.
This made them shout wonders, and everyone in the workshop was stunned.
While lamenting the magic of the air expanding with heat and contracting with cold, he also admired Li Ke.
What an amazing talent His Royal Highness King Wu has to think of using hot steam to drive machinery!
The successful research of this small steam engine greatly boosted their confidence and motivation.
Then began to use this small steam engine as a prototype to manufacture larger and more powerful steam engines.
But this thing is not something that can be made with as big a steam engine as you want.
Small steam engines do not have such high requirements on material strength and sealing.
However, a steam engine with greater power requires higher material strength and tightness.
Because the greater the power of the steam engine, the greater the pressure on the cylinder.
If the strength of the material is not high enough, the cylinder will explode.
In fact, the people in the steam engine workshop ignored this point when making more powerful steam engines.
As a result, the cylinder of the steam engine exploded several times. Fortunately, Li Ke specifically explained before leaving that they should stay away from the steam engine during the experiment.
Therefore, when the steam engine cylinder exploded, no casualties were caused.
But even so, they were taken aback. Later, they began to look for the reason, and someone thought of the strength of the material.
So, I went to the steel workshop to get special steel with the highest strength, high temperature resistance and wear resistance.
After using this high-strength steel as the cylinder part of the steam engine, the cylinder explosion never happened again.
However, they then discovered that the airtightness of the steam engine was much worse, so they began to think of ways to improve the airtightness of the steam engine.
After this period of research, by increasing the accuracy of the piston and cylinder and narrowing the gap between the two, the sealing performance has also been improved.
Still, steam would leak out, and there was nothing they could do about it anyway.
I have no choice but to write to Li Ke.
Now that Li Ke is finally back, they also really want to know how to improve the airtightness.
"Your Highness, what troubles us now is the airtightness of the steam engine."
The head of the steam engine workshop reported the current problems to Li Ke.
"Actually, sealing this thing is impossible."
"Hot steam is not a poisonous gas. There is no need to pursue no leakage of steam, just a balance."
Li Ke smiled and explained something to them.
In fact, it is impossible to achieve absolute steam leakage.
At least with the current level of technology is absolutely impossible.
When Watt improved the steam engine in history, including when entering the first industrial revolution, the steam engine could not be completely sealed.
However, this does not prevent the application of steam engines in various fields and drive the rapid development of various fields.
This thing just needs to achieve a balance between economy and practicality.
It means that the sealing performance is controlled within an acceptable range, and the benefit of letting the steam engine do work is far greater than the cost of steam, which is enough.
It is not realistic to achieve complete sealing.
Before he crossed, someone left a message under his post, asking him to use rubber as the sealing ring of the steam engine piston.
But after he went to study and understand it himself, he realized that this statement was actually nonsense.
As a sealing ring, rubber can only be used as a static seal, that is, rubber can be used to seal the place that does not move.
However, the piston needs to work back and forth in the cylinder continuously. There is no way for this kind of dynamic seal and rubber.
Therefore, rubber cannot be used as the seal of a steam engine at all. Many statements on the Internet, including many statements in time-traveling novels, are wrong.
If he hadn't gone to study and understand it, I'm afraid the craftsman would still be foolish enough to find a way to use rubber as a seal.
"Reduce the gap between the piston and the cylinder to a certain extent, then wrap a layer of cloth on the piston and soak it in grease."
Li Ke said something to the principal and craftsmen of the steam engine workshop.
"Yes, Your Highness!"
The head of the steam engine workshop and the craftsmen suddenly realized and nodded.
No wonder they couldn't figure out how to further reduce the air leakage before.
It turned out that there was no need to be completely airtight, and they went into a misunderstanding.
If Li Ke hadn't told them, I'm afraid they would continue on this path.
"Try the power of this steam engine."
Li Ke was very curious about the power of the small steam engine in front of him.
Steam engine workshops, including steel workshops, are actually built by the river because hydraulic forging is required.
But now with the steam engine, water power can be replaced, and the power of the steam engine can be used to complete.
Next, someone went to the rubber workshop to get the belt, put one end on the wheel of the steam engine, and the other end on the driving wheel of the hydraulic forging machine.
With the injection of hot steam into the steam engine, the steam engine began to work after a while, driving the wheel to rotate slowly.
As the wheel rotates, the power is naturally transmitted to the hydraulic forging machine through rubber preserved eggs.
"Ding!"
"Ding!"
Soon, everyone saw that the hydraulic forging machine started to work slowly, and the forging hammer hit a piece of iron one after another.
And as the power of the steam engine began to increase, the power became stronger and stronger, and the power and speed of the hydraulic forging machine also greatly improved.
Although the hydraulic forging machine originally did not require manpower, it was driven by the water flow in the river.
However, the flow rate of water changes, and there are flood seasons and dry seasons, so hydraulic forging is not stable.
But the extremely stable scene in front of him made the head of the steam engine workshop and the craftsmen all stare wide-eyed, and stared dumbfounded!
"As long as the steam is stable and continuous, the power is also stable and continuous."
Li Ke smiled and said something to them.
"Your Highness, with this steam engine, the production efficiency of our major workshops will be greatly improved in the future!"
After seeing this scene, a craftsman said to Li Ke with great excitement.
"¨. Not only the production efficiency, many things that could not be processed before can be processed now!"
There are also craftsmen who think of some objects that cannot be achieved by technology, but with the steam engine, they can be achieved.
The entire steam engine workshop was boiling, and everyone was shocked by the function of the steam engine.
Although they built a steam engine before, they really didn't expect a good application scenario.
But now, they have thought of many, many, steam engines can be used in all walks of life!
And it can bring unimaginable improvement to all walks of life!
"The steam engine can be used to drive vehicles, and this king calls this vehicle a train."
"Steam engines can be used to drive ships, and this king calls this kind of ship a steam ship."
"The steam engine can also be used as the power for spinning and weaving, and can be used for printing, irrigation, forging, production, etc."
"The steam engine can change the world!"
Li Ke also spoke to everyone with great anticipation and longing.
Even though these people made the steam engine by themselves, they still can't imagine how much influence the steam engine will bring to the world.
These all require him to slowly guide in the next time, and he will become the guide in the use of steam engines.
Also become the leader of the world's first industrial revolution!
After hearing Li Ke's words, the master and craftsmen also had amazement and anticipation in their eyes.
The trains and steamships mentioned by Li Ke made them wonder.
Can a steam engine drive a car?Can it be put on a ship?
As well as some areas mentioned later, they are also looking forward to it.
Changing the world, this really makes their blood boil.
Because, the steam engine was made by them themselves!
When they think that they may have created something that can change the world, they are naturally extremely excited and looking forward to it.
They really want to see the day when the steam engine shines in various fields.
"The next step is to build more steam engines, with as much power as possible, don't pursue sealing too much, just do your best."
Li Ke explained to the principal and craftsmen of the steam engine workshop.
The power of the steam engine in front of me is still too small, and there is only one.
If the steam engine is to be effective, it must have a large number!