Ancient promotion routine

In the Great Wei Dynasty, due to the unadvanced salt-making process and too many impurities in seawater, no one used seawater to make salt, and the government did not consider seawater. Naturally, there was no regulation prohibiting seawater from making salt.

He can now seize this loophole and let the coastal area where Liu Junyi is located and Pingdingshan in Zhongzhou produce salt together.

The Great Wei Dynasty later abolished the official salt system, which shows that the Great Wei Dynasty had considered this aspect at least early on.If this is the case, he and Liu Junyi can let the court speed up the development of the salt system. At that time, even if Zhou Qin and his group don't want to, I'm afraid there is nothing they can do.

Thinking of this, Zhang Yanjin immediately took out the paper and wrote a letter to Liu Junyi.

Zhou Qin wants to monopolize the official salt and eat this cake all by himself, but he just wants to take this cake away from him!

He can cooperate with Liu Junyi to build a salt factory in the coastal area, and work with Zhongzhou to produce salt and sell it to various places.

When the salt is produced, the Japanese envoys should also come back, and they can also directly sign a salt sales agreement with the Japanese envoys, can't they?

The thought of being able to cheat the Japanese envoy made Zhang Yanjin feel even more excited.

He couldn't get all the benefits, and he made Zhou Qin even less able to get it.

Zhang Yanjin has always adhered to the principle that people do not harm me, and I do not harm others.But Zhou Qin is really deceiving people too much, trying to kill him time and time again, so don't blame him for being rude.

Since the construction of the salt factory is a big deal, Zhang Yanjin just mentioned in the letter that he wanted to build a salt factory in the coastal area and asked Liu Junyi to come over.

Afterwards, he asked Zhang Wuer to deliver the letter to the messengers of the post station, and asked them to pass it to Liu Junyi quickly.

Afterwards, Zhang Yanjin had no more worries in his mind. After sleeping until dawn, he got up and went to the factory to see the steam engines made by the craftsmen.

A steam engine is a reciprocating power machine that converts the energy contained in the steam into mechanical work through the promotion of steam.

The principle of the steam engine is very simple to Zhang Yanjin.

It requires only a boiler that boils water to produce high-pressure steam, which can use wood, coal, oil or natural gas, or even wheat straw as a heat source.The expansion of the steam pushes the piston to do work.

At the beginning, the United Kingdom also carried out mining first, and coal was the most used.Unlike the open-pit coal mines in Datong, Shanxi, most of the coal mines in the UK are deeply hidden under the mountains, so they need to dig wells for mining. After the mining industry has developed to a considerable scale, it is difficult to drain the underground water in the mines by manpower and animal power alone. .

At that time, there were abundant coal resources in the surrounding area, so the British at that time had the idea of ​​using firepower to lift water.

Later, Watt invented a steam engine consisting of a cylinder, a base, a piston, a crank connecting rod mechanism, a slide valve steam distribution mechanism, a speed regulating mechanism and a flywheel.

The invention of this steam engine thoroughly promoted the first industrial revolution in Britain.

Zhang Yanjin only had a general understanding of the structure of these parts, so he was not very clear about the appearance of these structures, so he drew dozens of pictures to confirm repeatedly, and later found many design drawings for craftsmen to make.

Today, he plans to assemble them one by one for experiments.

He knew the basic principles of the steam engine, so it was not troublesome to experiment.

After Zhang Yanjin arrived at the factory, he began to organize workers to install a large number of parts according to the appearance drawn on his drawings, and then tested them one by one.

After they installed it, Zhang Yanjin asked people to use coal to burn the large steam boiler that had been prepared earlier.

Soon the water boiled violently, Zhang Yanjin not only did not let people turn off the fire, but also made people increase the amount of coal used.

He knew that with the amount of firepower under the boiler, the steam in the boiler would boil, which also determined how much pressure could be provided to the sprayer in the end.

Soon, after the boiling steam in the boiler gathered to a certain level, it began to pour into the pipe continuously, and then entered the cylinder from the pipe.

After the steam in the cylinder reached a certain amount, Zhang Yanjin asked the workers to close the valves of the major steam engines.

Although the workers were ignorant and didn't know what Zhang Yanjin was doing, they still did what Zhang Yanjin said.

This kind of valve installed between the pipe and the cylinder can effectively control the time when the steam reaches the cylinder. When the firepower under the boiler is constant, the amount of steam entering the cylinder can be controlled.

After the steam enters the slide valve chamber through the main steam valve and the throttle valve, it will be controlled by the slide valve, and alternately enter the left or right side of the cylinder back and forth to push the piston to move.

The steam pushes the piston to do work in the cylinder, and the cooled steam is introduced into the condenser through the pipe and condensed into water again.In this way, a vacuum will be formed, and a huge pressure difference will be formed between the atmospheric pressure and the outside world.

The external atmospheric pressure will press the iodine water in the spray pipe, and press the iodine water into the spray head to form a spray.

Although it was already autumn, several steam engines were started together, which made Zhang Yanjin sweat all over, but he didn't seem to feel it. He just stared at the spray nozzle seriously to see which one would succeed in the experiment.

To Zhang Yanjin's disappointment, the steam engines in the first batch of experiments were unsuccessful due to various reasons. Some of them were directly hit by the steam in the cylinders at the beginning, and some of them stopped after a few movements of the pistons. , Zhang Yanjin guessed that the airtightness was not enough.

Others stopped for no reason, and Zhang Yanjin hadn't figured out the reason yet.

But he was not discouraged, because he knew from the beginning that his design might have some problems of one kind or another, and it was impossible to succeed from the beginning, so he was a little frustrated but it was expected.

After asking the workers to remove the first batch of steam engines, Zhang Yanjin organized everyone to install the second batch of steam engines.

"Erlang, what exactly are we installing?" Zhang Wuer saw that Zhang Yanjin asked people to continue installing the second batch of steam engines. He became more and more depressed, so he wiped the sweat from his face and leaned forward to ask.

After Zhang Yanjin handed the screw in his hand to the worker, he raised his head and replied concisely: "Steam engine."

Zhang Wuer was confused and said: "Erlang, I know that this thing we installed is called a steam engine, but what are we doing with it?"

When a person has never been in touch with something, he will feel unclear and confused when he explains it.

Zhang Wuer is in this state now, and Zhang Yanjin just thinks it will be like this. It is better not to explain it than to explain it clearly.

He said indifferently: "After you succeed, you will know what it is for. Now, what are you asking so many questions about? Hurry up and see if the other machines have been installed."

Seeing Zhang Yanjin's seriousness, Zhang Wuer didn't dare to ask any more questions, so he quickly got up and went to install other things.

A group of people has been tossing around all afternoon, everyone's face is covered with stinky sweat, and those who are close to the boiler are also stained with black ash, making them look even more embarrassed.

As one steam engine broke down one steam engine after another, everyone present was very discouraged.Although they were confused and didn't understand what they were going to do at all, they were still frustrated after seeing the failures again and again, and some of them even started to spend time.

The blazing fire in the boiler gave off a dry and hot breath, which merged with the hot flashes left in the early autumn, penetrated into the bodies of everyone present, and turned into an annoyance with nowhere to vent.

No one thinks that Zhang Yanjin will succeed, they just think that he is whimsical.

Everyone didn't dare to tell Zhang Yanjin directly, and all turned their helpless eyes to Zhang Wuer.

At this time, Zhang Wuer also gave up hope for any steam engine, and even felt that this thing was useless at all. He looked at Zhang Yanjin who was still concentrating on the steam engine, and hesitated to speak.

He wanted to speak to persuade Zhang Yanjin, but was moved by Zhang Yanjin's focused expression.

Outsiders always say that their Erlang is cynical, but the essence is not. He has been with their Erlang for so long, and he found that there is nothing that their Erlang wants to handle, and their Erlang is not serious.

It is precisely because of this that Erlang can always accomplish things that ordinary people cannot accomplish, right?This is also where the charm of Erlang's personality lies, right?

For a while, the venue was quiet, only the crackling sound from time to time when the coal in the boiler was burning.

Everyone seemed to be moved by Zhang Yanjin's tenacity and earnestness. They suppressed the irritability in their hearts and followed the progress of every link of the steam engine with Zhang Yanjin.

Zhang Wu'er's heart moved, he looked around the venue again, looking at the people who started to act silently, feeling deeply moved in his heart.

He didn't read much, knew less, and didn't know how to describe the emotion in his heart. Perhaps this was the unique ability of their Erlang, and this ability could bring the big guys together!

After another half an hour, there was a sudden "poof" in the field where only the people made soft sounds when they moved.

Everyone looked towards the sound and found a small white mist coming out of the copper nozzle in Zhang Yanjin's hand.This white mist was rippling in the air, and soon fell to the ground, but the nozzle still sprayed out fine white mist.