parentshiftbook Chapter 734: A Generator With Little Technical Content [Please Subscribe, Please Order All]
Chapter 734: A Generator With Little Technical Content [Please Subscribe, Please Order All]
Seeing that Zhu Yuanzhang and all the civil and military officials were very interested in the hand-cranked generator, Yan Changqing could understand.
To put it simply, a hand-cranked generator is an incredible thing that can automatically light up as long as it is manually shaken.
Speaking more broadly, the hand-operated generator is the beginning of artificial power generation, and it is also the prelude to the new era of electric power in the future.
Even if you look at the fantasy and fairy-tale style, this little hand-cranked generator might become an artifact that can help the country and its fortunes.
Well, the premise is that in the fantasy and fairy-tale style, the law of electromagnetic induction still holds true.
But then again, as the beginning of artificial power generation and the prelude to the new era of electric power in the future, the gold content of hand-cranked generators is actually not high [or in other words, the technical difficulty of hand-operated hand-cranked generators is not great.
At least compared to steam engines, the difficulty of making a hand-operated generator is basically nothing.
For example, Yan Changqing has been making steam engines in addition to hand-operated generators since last year.
But until now, the steam engine has not been developed. The main problem is that the sealing technology is not up to standard.
There was no way. In the absence of rubber, even if a group of perverted craftsmen from the Ming Dynasty made a rough steam engine mold by hand according to his requirements, there was no way to seal and use it in the end.
So until now, many workshops are still studying and solving the sealing problem of steam engines.
Otherwise, the "wonders" that Yan Changqing can display today will at least include one more steam engine.
But compared with the difficulty of making a steam engine, the difficulty of making a hand-operated generator is much lower.
Like the components of a hand-operated generator, there are three parts in total:
The first one is the permanent magnet (stator), which is a magnet. This is not difficult to find.
As early as the Spring and Autumn Period and the Warring States Period, Huayi ancestors had already discovered the existence of magnets.
For example, "Guanzi" records this: "If there is a magnet on the mountain, there will be gold and copper underneath."
Another example is that there is a similar record in "Lu Shi Chun Qiu": "Compassion attracts iron, or attracts it." (The ancients called "magnetic" "ci").
The needle of the Sinan, or compass, one of the four great inventions of ancient China, is a magnetic needle. This can also be said to be one of the earliest magnet products.
So it is not difficult to find magnets to make a hand-operated generator.
That is to say, 420, for ordinary people in this era, getting a magnet is a bit troublesome at best.
As one of the Saints of this era, Yan Changqing wanted some magnets for research, so he just had to say a word and someone would find them for him.
The second part of the hand-operated generator is the conductor rotor wrapped with a copper wire coil.
This is no longer a problem. Metal wire drawing technology is not difficult at all for the great craftsmen of this era.
Not to mention the craftsmen of the Ming Dynasty, even for the craftsmen of the Qin Dynasty a thousand years ago, metal drawing was not a big problem.
Judging from the stone armor worn by the terracotta warriors and horses from the Qin Dynasty excavated by Yan Changqing in his previous life, it can be seen that during the Qin Dynasty, "the craftsmen at that time had already possessed a very high level of metal red painting technology.
So let alone copper wire winding coils, even if Yan Changqing wanted to have copper wire hollow carvings, those craftsmen could still fulfill his needs.
As for the third part of the hand-operated generator, the hand-operated turntable, this can really be said to be done with hands.
It just requires a turntable that can be turned by hand. Even a five-year-old child can make this.
After making these three parts, all that's left is to fix the permanent magnet (stator), the conductor (rotor) wrapped with copper wire coils, and the hand-operated turntable.
Finally, a rope is used to connect the conductor rotor and the hand turntable. By shaking the turntable, the conductor rotor can rotate rapidly, which in turn causes the coil to continuously rotate in the magnetic field and cut the magnetic field, causing electromagnetic induction and generating current.
So at this point, a serious hand-cranked generator that can actually generate electricity, but may generate unstable electricity, is completed.
As for the other small lights and wires, they are tools for verifying the generation of electricity.
Strictly speaking, a simple hand-operated generator does not contain a small light or wire.
However, usually, in order to prove that the hand-cranked generator has successfully produced electricity, it is still connected to wires and small electric lights are installed.
As for wires, there is also no technical difficulty in this [just use (bhfb) copper wires as wires.
As for making copper wire, as I just said, craftsmen as early as the Qin Dynasty had mastered extremely high-level metal wire drawing technology.
So pulling copper wire as a wire is also not a problem.
The only possible problem is that the copper wires may leak.
However, this problem is not a big problem. There are many ways to prevent leakage, and it does not necessarily have to be rubber.
For example, using some kind of "paint" specially made by craftsmen to insulate and prevent leakage, or using silk to insulate and prevent leakage, is really not possible [glass under normal conditions is also an insulator.
After solving the wire problem, all that's left is the light.
And this one is also not a big problem.
The article "Edison invented the electric light" has been included in many teaching materials for primary and secondary school students, and Yan Changqing naturally learned it in his previous life.
Among them, the bulbs of electric lamps are generally made of glass, which is not difficult. The method of firing glass has long been popularized by the official craftsmen of the imperial court.
As long as there is need, those craftsmen with top glass skills can blow the glass into any shape Yan Changqing needs at any time.
After the bulb is the most important wick of the electric lamp, which is mainly made of tungsten filament.
Yan Changqing knows this very well because it is written in the text.
The text at that time was about Edison testing thousands of materials before finally selecting tungsten wire.
But tungsten wire is a bit troublesome and not easy to get out.
So Yan Changqing took a step back and chose carbonized bamboo filaments as lamp wicks.
After all, before tungsten filament was used as the wick of electric lamps, almost all electric lamp inventors and manufacturers used carbon (carbonized wood or wood products as raw material) as the wick of electric lamps.
Including Edison, he also used carbonized bamboo filaments as the wicks of electric lamps at the beginning, and the effect was not bad.
At least the carbonized bamboo filament lamp made by Edison himself could last up to 1,200 hours.
This point is also briefly mentioned in the text, so Yan Changqing also knows something about carbonized bamboo silk.
If the craftsmen of this era are asked to make tungsten wire, it may be more troublesome, and they may not even be able to make it.
But if the craftsmen of this era are asked to make carbonized bamboo silk, then for the craftsmen of this era, it will also be a matter of little technical difficulty.
Because the carbonization process is also one of the processes that craftsmen have already mastered.
After all, as one of the main daily energy sources in the past, charcoal has been researched, developed, and used intensively by the ancestors of China.
As long as it is a wood product, whether it is carbonized bamboo filament, carbonized wood filament, or various other messy carbonized filaments, they can make it if necessary.
Therefore, after solving the most critical problem of the wick of the electric lamp, the production of the electric lamp will naturally not be a problem.
Well, at this point, the simplest electric lamp that can emit light is ready for production.
As for what to say about vacuum, what to fill with inert gas, what to avoid ablation and oxidation, etc., these are all issues for further improvement and extending the service life of electric lamps.
If it can be solved, then such electric lamps will be basically the same as the incandescent lamps of later generations.
Of course, Yan Changqing can't do it now, nor can he care about it. In the future, he will leave the problem of improving and extending the service life of electric lamps to the scientists of the Academy of Sciences to study and deal with it.
Now, all he needs is a light bulb that can shine brightly.
At this point, it is enough to verify whether the hand-cranked generator can successfully generate electricity through wires and light bulbs.
To sum up, in fact, whether it is a hand-cranked generator, a wire, or a light bulb, there is no technical difficulty in making these things.
Whether it is the craftsmen of the Hongwu period today or the craftsmen of the Spring and Autumn Period and the Warring States Period two thousand years ago, as long as they tell them the relevant requirements, they can make such a hand-operated generator by hand.
At least from the perspective of objective technical production conditions, it can be achieved.
What’s the real difficulty in making a hand-cranked generator?!!
The real difficulty is the idea, or the law of electromagnetic induction!!!
Only by discovering the phenomenon of electromagnetic induction and understanding the law of electromagnetic induction can we make a hand-operated generator.
However, this is just like Newton's law. There are many people who have been hit by apples throughout the ages. However, apart from Newton, has anyone else discovered the phenomenon of universal gravitation before and clearly understood the law of universal gravitation?!!
No, at least there is no official record on the surface.
And if the phenomenon of electromagnetic induction is not discovered and the law of electromagnetic induction is clearly understood, then it would be a fantasy to directly create a hand-cranked generator from scratch.
After Zhu Yuanzhang and all the civil and military officials had initially played with the hand-cranked generator.
Yan Changqing just walked to the other side of a device similar to a bicycle and sat on it, then stepped on the pedals with both feet.
As Yan Changqing pedaled and rode, the electric light erected on the light pole next to Yan Changqing soon started to flicker on and off again.
At the same time, Yan Changqing also introduced:
“After I invented the hand-cranked generator, I found that if I shook the turntable by hand for a long time, my arms would be very sore and it would be difficult to hold on for a long time.
"So I made further improvements based on the hand-operated generator and changed it into the foot-operated generator I am sitting on now.
"The principle of the foot-operated generator and the hand-cranked generator are the same, except that the hand-cranked turntable drives the conductor rotor to rotate, and the foot pedal drives the conductor rotor to rotate."
Zhu Yuanzhang and all the civil and military officials on the side all nodded to this.
Although they still don't understand what the law of electromagnetic induction is, at least they all know that the electric lamp that can shine on its own is made to shine by turning the turntable by hand.
But now it is just a matter of changing the hand-operated turntable to the foot-operated turntable. There is no essential difference between the two.
After stepping on the pedal generator, Yan Changqing walked back to the large waterwheel generator at the beginning, pointed at the waterwheel generator and introduced:
"Although foot-operated generators are easier than hand-cranked generators, in the end, whether they are hand-cranked generators or foot-operated generators, they still rely on human power to do the work."
"But sometimes the manpower is exhausted, and we simply rely on
If we rely on manpower to maintain power generation, it will not last long. "
"Besides human power, are there any other forces that can be used to generate electricity?!!"
Having said this, Zhu Yuanzhang and all the civil and military officials understood the role of the waterwheel in front of them.
Yan Changqing also nodded and asked and answered:
"Yes, in addition to manpower, there is also water power that can also be used to generate electricity!!!"
"So I deliberately introduced a small river about half a foot wide outside and made a pond above the small river."
"Then a waterwheel pond was dug in the middle of the small river, one foot long, one foot wide and half a foot low."
"The river flows into this from the outside, and then flows out from the pond above, forming a small waterfall."
"With the help of the water flow power formed by the height difference of the small waterfall, the water wheel is driven to rotate. The water wheel's rotation further drives the conductor rotor to rotate through the traction between the ropes.
move. ’11
“Finally, the conductor rotor rotates rapidly and moves relative to the permanent magnet outside, which causes the coil to continuously rotate in the magnetic field and cut the magnetic field, causing electromagnetic induction.
phenomenon, and then generate current. "
"Electrical current flows through the wires, generating electrical energy, and finally lights up the electric furnace.
"At this point, a stable and long-lasting power generation is achieved through hydraulic power, and then converted into heat energy and light energy through electricity, thereby achieving a stable and long-lasting electric light application.
The system is basically completed.
"As long as the carbonized bamboo filaments in the wires and lamps are not damaged or consumed, then no matter when you come in twelve hours a day, as long as you turn on the lamp, the room will be
The bowels are as bright as day. "
"And in this process, there is no need to spend any effort at all!!!"
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