Chapter 123 "Things About My Generator in the Song Dynasty" (Big Chapter!!)
Little known.
In ancient China, the purification of salt has always been a troublesome matter.
In the most primitive tribal era, humans even relied on eating hair and drinking blood to obtain salt.
After entering the history of civilization.
The ancestors found the salt well and only then obtained the method of processing coarse salt.
During the Tang and Song Dynasties, refined salt refined from sea salt gradually appeared, and the price was high.
The highest price even reached one catty, or sixteen taels and ninety cents.
But the word refined salt here is actually a concept that can be compared with the earlier coarse salt.
Compared with the standard table salt of later generations, the refined salt at this time still contained a large number of impurities.
Such as sulfate ions, magnesium ions, calcium ions, etc.
Especially magnesium ions.
After this thing enters the human body, it can cause diarrhea, heart dysfunction and other abnormalities.
For Wang Yue at this time, this was a deadly substance, and injection was basically equivalent to murder.
Previously, in order to save Wang Yue's life, Xu Yun could only deal with it with refined salt for the time being.
After all, efficiency comes first.
Moreover, the purpose of adding salt is only to dehydrate the ethanol and increase the alcohol concentration. There will not be too much residue entering the human body.
But now we need to inject normal saline, and it is foreseeable that this will be an extremely long-term treatment.
In this way, this part of the impurities seems a bit annoying.
Therefore, purifying sodium chloride has become a necessary and urgent step.
True.
There are many ways to purify sodium chloride.
For example, you can use seashells, coconut shells, and any kind of acidic fruit.
But don't forget.
Xu Yun came to this era with a task to complete.
The stronger the ability he shows at this time, the easier it is to gain Lao Su's trust.
Coupled with the background factors of the times, he also needs a certain status to do something - whether it can succeed in the end is one thing, and whether he has the right to speak is another.
Therefore, after careful consideration, he chose to make a generator by hand and use electrolysis to prepare sodium chloride.
After making up your mind.
Xu Yun pondered for a moment and said to Old Su:
"Sir, intravenous injection requires something called physiological saline, which needs to be prepared in another way.
So could you please sir, prepare some things for me? ”
"What do you need?"
".These things may be a bit expensive."
When Lao Su heard this, he waved his sleeves very proudly:
"Your life is at stake, and I have a rich family, so you just say it's okay."
Xu Yun nodded and turned over the paper with the ghost drawing talisman.
The required supplies are written above:
"A piece of natural magnet is best shaped into this shape.
Then process the refined copper into thin wires, the longer the better. Add two copper blocks and several copper sheets.
In addition, a half-meter iron shaft, wooden mold, tung oil, turntable, graphite, poisonous heavy stone, and utensils for water supply in Fuzhong are needed
Then send someone to the sour plum shop in the east of the city to ask the store owner if he has any white stuff that can make ice. If so, buy some back
By the way, the donkey pulling the mill is also ready. ”
After describing the requirements, Xu Yun handed the piece of paper to Lao Su.
This time he planned to build a standard disc generator based on Faraday's electromagnetic induction phenomenon.
That is, magnetism generates electricity.
The iron shaft is made into the rotor core, copper wire soaked in tung oil is wound around it as the winding, and the magnet is used as the stator.
It is an operation that only requires hands.
What?
Are you asking about voltage?
U=kB∠nV, the voltage is equal to the coefficient multiplied by the magnetic intensity multiplied by the effective length of the rotor multiplied by the number of coil turns multiplied by the constant speed difference, which can be calculated in advance.
At the same time, the required precision of the copper wire is only five millimeters, which can be easily achieved even by ancient industrial standards.
Looking at the entire process, the biggest problem is not technology and craftsmanship, but production cost.
According to Xu Yun's design.
The guaranteed cost of the entire generator is more than 200 copper coins, which is two hundred taels of silver, and it may rise at any time.
Converted based on the concept mentioned earlier, it is almost equal to 200,000 in later generations.
And without a voltage regulator and distributor, what this kind of generator could do in ancient times was extremely limited.
To put it bluntly, this thing is basically the same as burning money.
So if you were to travel to an ordinary home, and you probably haven’t tinkered with a generator yet, you would have to be hung up and beaten by your parents first.
But now in order to save Wang Yue, Lao Su obviously won't care too much.
After getting Xu Yun's drawings, he immediately called in Mr. Xie to take charge.
The housekeeper was asked to work the night shift.
Xu Yun rubbed his sore neck, said goodbye to Lao Su, and returned to his cabin to sleep.
A lot of things happened today, and I lost a lot of energy and physical strength.
In addition, there is no way to explain in this era, so naturally I can only sleep quietly.
A night of silence.
Early the next morning.
Xu Yun's ears suddenly heard a faint voice:
"My lord, my lord, it's time to get up in the morning."
Xu Yun yawned and rubbed his sleepy eyes.
After regaining consciousness, I suddenly felt something was wrong:
Although some people have called him to wake up in the past few days, most of them are a bit rude.
Either hammering the door or shouting, how can it be as gentle as today?
Then he put on his clothes and opened the door.
I only see this moment.
Yongzhu was standing outside the door with a somewhat reserved smile, holding water in both hands, without any hint of the casualness with which he said ‘Wang Mazi’ yesterday:
"Prince, you are awake, please use water."
Xu Yun gave him a strange look and asked:
"Brother Yongzhu, what are you"
"No, no, no, you're going to hurt the villain. Just call me Zhuzhu."
Hearing the words Yongzhu brother, Yongzhu suddenly became excited and said quickly:
"My lord, you don't know something.
The master issued an order yesterday to remove you from the slave status and add you to the list of guests in the mansion.
Now you are considered a guest, different from us servants. If you need anything, you can call me at any time. ”
"Keeper?"
Xu Yun was stunned when he heard this, and then he understood.
Doorman.
Also called diners, they are a unique group in ancient times.
Most of them are Jianghu rangers or counselors without official positions, and some are even fugitives.
On weekdays, the lord provides the necessities of life, and will also contribute to the lord when necessary.
At the beginning, Lord Mengchang claimed to have three thousand diners. In "Water Margin", Chai Jin's manor also had a large number of diners staying.
In terms of nature, retainers are "guests" and are much higher than "servants".
For example, Zheng Kuan, the head of the nursing home, one of the four giants in the old Su family, is a kind of "Bin".
Therefore, the salary and status are much higher than that of the highest-ranking 'Yi' servant.
It's just that in terms of intimacy with the master's family, he is inferior to Mr. Xie, Du Guan, Yue Lian and others. Each has its own advantages and disadvantages.
If Xu Yun remembers correctly.
Before Lao Su became an official, he also recruited dozens of retainers. According to records, retainers were responsible for completing some aspects of the Water Transport Ceremony Tower.
But now that Lao Su has retired, the number of guests staying in the house is estimated to be very small.
The empty east wing can also prove this point - that is the guest room, and theoretically all guests should be placed in that position.
Therefore, in addition to the necessary position of nursing home, there may be one or two disciples who have not been dismissed in terms of accounting.
In short, the number will most likely not exceed three.
The existence of true rarity.
Tell the truth.
Be it a guest or a servant.
Xu Yun, who was born in a later generation, actually did not have high requirements for status, and naturally he would not boss others around.
I saw that he first let Yongzhu enter the house with water, took the towel and washed his face, and then said to Yongzhu:
"Brother Yongzhu, don't be impatient. Brother Yongzhu, listen to me first.
You were the one who rescued me from the well with the rope in the first place, so let's not be too arrogant. There is no need to be too harsh.
Well, if you think highly of me, I will still call you Brother Yongzhu.
As for me, just call me Brother Wang, just like you call me Third Brother. What do you think? ”
In the Song Dynasty, "Ge'er" did not refer to an elder brother. It was a term that was biased towards the market, but was somewhat intimate.
Still taking "Water Margin" as an example:
In the episode where Wu Song furiously kills Pan Jinlian, the little boy selling pears in Yanggu County is named Brother Yun, and he can be regarded as a minor character with some roles.
Seeing that Xu Yun's words didn't seem to be fake, and at the same time the reply to the invitation at the sour plum shop yesterday made Yongzhu feel that he and Xu Yun had some kind of friendship.
So he hesitated for a moment, and finally tentatively said:
"Then I will call you Brother Wang from now on?"
Xu Yun smiled heartily:
"It's done!"
After washing up, he went to the breakfast shed to have some breakfast.
Then he went to the east wing and met Lao Su, Wang Zhen and Wang Yue.
Sure enough.
After another round of wrangling, he finally convinced Lao Su and Wang Zhen to change his title from 'Wang Gongzi' to 'Little Wang'.
As for Xu Yun's title of Lao Su is still Lao Ye, after all, retainers are also considered subordinates.
Then Lao Su told Xu Yun,
At midnight last night, he saw that Wang Yue had a low fever, and Xu Yun mentioned that allicin was difficult to store, so he used the remaining allicin to give Wang Yue a second dose of medicine.
While stabilizing the condition, it also meant that the first batch of allicin had been used up.
Therefore Xu Yun’s goal today is very clear:
Completed the mass production preparation of the second batch of allicin and allicin injection!
Then Lao Su took Xu Yun to another courtyard in the east wing. There was a pile of supplies Xu Yun needed placed in the open space in the courtyard.
Um.
And the donkey.
After entering the courtyard.
Lao Su pointed at these objects and introduced them loudly:
"Xiao Wang, these are natural magnets, iron shafts, and wooden molds.
The copper wire was made by a craftsman from the bureau overnight. You can see if it fits.
Also as you said.
The Sour Plum Soup Shop does have some white crystal stones that can be used to make ice, and I also bought some back in the first year.
Oh, by the way, the water delivery device you mentioned is also ready, that's the pile on the left. ”
Xu Yun nodded slightly, and first walked outside the copper wire to check the accuracy specifications.
In ancient times, there was no insulating paint and absolute wire insulation could not be achieved.
But under special circumstances, both leather paper and tung oil can achieve substitution effects.
When Farah first experimented, he also used leather paper.
The theoretical upper limit of copper wire for a homemade generator is five millimeters, which is also the width of half a fingernail. Within this limit, the thinner the better.
The size of the coil of copper wire prepared by Lao Su is about two millimeters. According to what he said before, this is the result of the craftsmen from the Manufacturing Bureau who made it overnight.
That is to say.
In this day and age, leave aside the delicate craftsmanship that takes a lot of time.
The processing accuracy of official industrial rapid mass production is about two millimeters.
Xu Yun secretly remembered this information in his heart, then turned around and came to the disassembled self-priming pump.
really.
Just as he expected before,
Although this self-priming pump is not as sophisticated as later generations, it can still clearly see the operating principle of the suction pump, and
Balance spring and mainspring.
Xu Yun bent down, took the main joint of the self-priming pump and weighed it in his hand.
About fifteen or six pounds.
Then he turned his head, held the self-priming pump and asked Lao Su:
"Master, do you know what this thing is?"
Old Su stroked his beard when he heard this, and a trace of pride appeared on his face. After all, this was his proud work:
"The name of this object is Suiyong. It is a small object that I accidentally discovered when I was ordered to build a water transport instrument platform.
Just by accumulating power through the wheel knot, the water can be sent dozens of feet away, which is equivalent to the effort of several servants traveling back and forth. ”
Xu Yun was silent for a moment and bowed his hand to Lao Su:
"His skills are almost divine."
His words didn't mean any flattery, they were all genuine admiration.
Although the principles of balance springs and self-priming pumps are very simple in the eyes of later generations.
But in this era—or until the 17th century, this was a barrier to human cognition. (Note: This is not because I care about it. The Tianheng system developed by Old Su was the prototype of mechanical watches in later generations. This is an achievement recognized domestically and internationally in later generations. If there is a mechanical watch, there must be a balance spring. This achievement is attributed to Hooker. The main reason is that it was too long ago and there is no physical evidence)
This may be the wisdom of the Chinese ancestors.
After finishing his emotion, Xu Yun returned his mind to reality.
He first checked each equipment one after another, and then officially started to assemble the generator.
As everyone knows.
A DC generator is mainly composed of a stator and a rotor.
The main components of the stator are the base, main magnetic poles, commutating poles, end covers and brushes.
Its main function is to generate a magnetic field.
The main components of the rotor are armature core, armature winding, commutator, rotating shaft, bearings, fan, etc.
Its main function is to generate induced electromotive force and electromagnetic torque, which is the core of DC motor energy conversion.
certainly.
If you want to travel through time, just make a simple device, it doesn't have to be that complicated.
The actual components include the stator main magnetic pole, armature core, armature winding, commutator and rotating shaft.
The basic principle of DC generator is Faraday's law of electromagnetic induction:
That is, if the conductor cuts the magnetic field lines, an induced electromotive force will be generated in the conductor.
Teachers should have demonstrated this in high school physics classes, so I won’t go into details here.
Normally.
This kind of ancient generator needs to be powered by hand, which is like using a pencil sharpener in elementary school, and the faster, the better.
But don't forget.
Now Xu Yun has a good thing like a clockwork:
You only need to ask the donkey to first accumulate power in the spring, and then use a very simple torque to convert the elastic potential energy of the spring into kinetic energy to allow the motor to operate.
As for whether the donkey was tired or not, this was not something Xu Yun considered.
Xu Yun then wound the copper wire around the copper sheet, pressed the turntable underneath, and fixed the magnet on a separate stand.
Then the coil is placed in the middle of the magnet, the wires are connected end to end to form a closed loop, and the graphite acts as a carbon brush for conduction.
that's all.
A simple generator is all it takes.
That's right, it's that simple,
In fact, there is a lot of seemingly advanced knowledge in later generations, which was not difficult to restore in ancient times. There are two main difficulties:
One is its derivative use and storage. The difficulty of electrical appliances is much more difficult than that of simple generators.
The second is the process of recognizing this concept.
It's like generating electricity.
Not to mention Xu Yun's disc engine, when it's really extreme, you can generate electricity with just two fruits.
Isn’t that what Ubisoft’s servers are like?
The ancients were unable to use electricity not because their industrial level was insufficient, but largely because they were unfamiliar with the microscopic field:
They don't even know the concept of electricity.
For example, Lao Su at this moment.
During Xu Yun's assembly process, he remained silent for almost the entire process because he could not understand what Xu Yun was doing.
Xu Yun didn't bother to explain. It was much easier to explain some concepts after seeing the phenomenon than to teach the concepts.
After tinkering with the generator, Xu Yun was not in a hurry to start it.
Because he has another thing to do:
Prepare for electrolysis. (End of chapter)