In the kitchen of the Duke of Yiguo's mansion, in a certain compartment, Wu Ming, who was a guest chef, put on a thick linen burqa, a hood and an iron mask, and "goggles" made of pigskin and glass. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

The two people around him were dressed in the same way, and when they were ready, one of them carried a pot and put it on the biogas stove, and the pot was already stocked with soup, ingredients and ingredients.

The use of biogas in the government has been going on for several years, not only with biogas lamps, but also with biogas stoves for cooking.

"Put it carefully, check the exhaust valve and the float valve!"

"Checked, everything is normal!"

"Ignition, screw the valve, and start the timer!"

The methane from the biogas stove is lit by a candle that is lit first, and the metal pot placed on the stove is different from ordinary pots, more like an urn, and the body and lid are made of fine iron, which is an artifact in the kitchen of the Duke of Yiguo.

It has an official name called "Pressure Cooker".

The pressure cooker, also known as the "pressure cooker", can be used to heat the cooked food to more than 100 degrees, invented in the 17th century, with a unique high temperature and high pressure function, greatly shortening the cooking time.

The benefits are not only this, but the food cooked in the pressure cooker tastes good, especially the meat that is not easy to cook becomes easy to cook, and the taste is surprisingly good.

Yuwenwen's high-pressure technology tree has been developed for nearly seven years, and finally a practical pressure cooker has appeared, which is similar in structure to the pressure cooker used by later generations, except that the key components are substitutes.

The pressure cooker needs a sealing ring, because there is no rubber, so it uses eucommia glue, but the durability of the simple eucommia glue sealing ring is still poor, so the final seal is made of pure copper and eucommia glue.

The pot body and lid made of hydraulic stamping are polished by hydraulic lathes, and finally finished by hand, and it took a lot of effort to make the finished product, exhaust valves, float valves and other things that should be available.

Although it is a low-level copycat pressure cooker, its cooking effect is already extremely sharp, and no kitchenware in this era can make the cooking effect of a pressure cooker.

What is "high pressure"? Except for Yuwen Wen and a few workshop craftsmen, no one knows what this means, but knowing that the food cooked by this thing is delicious, of course, there is another problem, that is, it is very dangerous.

The pressure cooker "frys", and the first time it is used in the kitchen, it is fried, and the iron lid directly penetrates the roof of the house, falling into the yard and smashing a shallow hole, and the kitchen is in a mess, and the hot soup sprays all over the ground.

Thanks to the proper protection at the time, several people present only suffered minor burns and abrasions, but they were frightened for a long time before they could speak.

Dangerous, too dangerous, not to mention easy to kill, just the sudden loud noise, scared the little Langjun in the distant backyard, originally the housewife was unwilling to use this thing to cook in the house, but the Lang lord insisted on using it.

Tossed many times, the pressure cooker has been improved a lot, the situation of the fryer is getting less and less, and the cooks who can use and dare to use it have also increased.

The food made by the pressure cooker tastes good, the meat is "pressed" to be soft and delicious, and the pork rib soup is also very delicious, and all kinds of new dishes are emerging one after another.

It's just that the danger is too great, and the cost is expensive, so it has not been put into use in Wuweizhai.

"It's almost time!"

A whisper drew Wu Ming's attention to the pressure cooker in front of the barbed wire, and in order to prevent the fried lid from hurting people, they specially pulled a barbed wire fence in front of them, and the thick cloth robes and masks on their bodies could prevent the hot soup from burning themselves.

The exhaust valve on the top of the pressure cooker suddenly whistled and spewed out water vapor, Wu Ming took out his pocket watch and started to time, according to the "operating procedures", the pressure cooker began to spray water vapor and then burned for half an hour before turning off the fire.

If you don't turn it off, just wait for the fryer!

Time passed minute by minute, Wu Min and the others looked at the pressure cooker snorting with water vapor, cold sweat gradually broke out, and each took out a wooden board to block it in front of them.

They didn't know if the pressure cooker in front of them would fry, and they couldn't hide outside the house, they could only watch the pocket watch timer, and it was easy to save enough time, Wu Ming quickly closed the valve of the biogas pipeline.

"Okay, go out and wait, wait until the steam doesn't spray and then turn on the pot later."

The servant beside him, who was fighting for the first time, asked, "Why is this?" Isn't it already cooked? ”

"It's cooked, but at this time there is too much water vapor in the pot, and the lid is difficult to open, even if you are as powerful as an ox to open it, you will fry the pot with a 'bang', and if your life is not good, half of your head will be broken off by the lid of the pot!"

Wu Ming said half-truthfully, bluffing the other party's face pale, but he then added: "Don't be afraid, just follow the 'operating procedures' to ensure that you have all your beards and tails." ”

"Really?"

"Seriously, as soon as the room is opened, there will be dishes made in a pressure cooker, so don't bite your tongue so delicious that you will eat at that time!"

While speaking, the pressure cooker in the room was no longer moving, Wu Ming looked at the pocket watch, made sure that the time had come, and then led someone in to lift the pressure cooker out and hand it over to the cook to deal with.

The lid of the pot is opened, the aroma is overflowing, this time it is made "pressure cooker stewed mutton", which is for the mother and the family to eat, and then the cook has to deal with it, and then the five pressure cookers pushed by the cart are filled with the food that is supplied to the room.

There is more than one biogas stove in the mansion of the country, and there is more than one pressure cooker.

"Keep up the work! Put all the pots on the biogas stove, be careful, and follow the 'operating procedures'! ”

。。。。。。

On the outskirts of Xiyang City, in a workshop on the bank of the Santai River, in one of the small courtyards, Lin Youdi, who was tightly protected from top to bottom, led craftsmen who were also tightly protected from top to bottom, and began a new round of experiments.

There was a device in front of them, like an enlarged version of a pressure cooker, but there were many more pipes and fittings on the outside, the most conspicuous of which was the stove under the pressure cooker, and the round dial on the body of the pot - the barometer.

The fire was vigorous, and the big pressure cooker on it emitted bursts of heat, Lin Youdi looked at the barometer on the pot body, and the pointer inside began to move, he looked at the pocket watch in his hand, and then looked at the water level gauge of the big pressure cooker.

"The water level is low, add water!"

"Add water! , repeat, add water! ”

The craftsmen next to it are in order, adding water and burning the fire are all carried out in an orderly manner, and the pipes outside the large pressure cooker are twisted and twisted, and finally connected to a lathe after many devices.

The lathe, which was originally powered by water power, was modified to test a new device that used a new power to drive the lathe's drill bits to drill harder metal products, such as iron rods.

Looking at the full set of devices in front of him, Lin Youdi touched the scar on his neck, remembering the unbearable past.

A year ago, there was a much larger device in this yard, called a boiler, the size of an attic, which could be run by more than a dozen people, and according to the original design, this thing had a lot of "power" and could drive hundreds of pounds of iron wheels.

The scaled-out model, the full-scale model, the proof-of-principle machine, and then the experimental model took a total of five years to make this experimental boiler.

Ignited and ran smoothly, everything was normal, and then there was gas leaks everywhere, and before everyone could react, the big explosion swallowed everything, and the boiling boiler water scalded five people to death on the spot, and five more people died after a few days of hard work because their skin was burned and festered.

The protective clothing worn at that time failed to save the lives of these people, the fabric of the protective clothing was still too thin, and the neck was not well protected, Lin Youdi survived because he was far away, but his neck was burned and left a scar.

After a tragic accident, Lang Zhu Yu Wenwen then suspended the experiment, and the size of the device was greatly reduced, turning into a large pressure cooker like a rice cylinder, and what it had to drive was just a lathe drill bit.

"Steward Lin, the pressure is here!"

The shout brought Lin Youdi back to his senses, he looked at the barometer and found that the pointer was in the yellow zone, and immediately began to order according to the plan: "Pull the brake, start running!" ”

Someone pulled a floodgate, the large pressure cooker trembled slightly, and the hearts of the people present were in their throats, Lin Youdi did not slip away, but set an example and stuck to his post, staring at the barometer with his eyes.

The pointer slowly pulls down, indicating that the air pressure in the large pressure cooker is decreasing, and the reason for the decrease is that the steam is being vented.

The steam pushes the blades, and the blades drive an eccentric wheel to rotate like a water wheel, and finally the lathe drill bit is driven by the connecting device.

He instructed his men to hook up the tachometer and begin measuring the speed of the drill, but the tachometer soon malfunctioned, cracking with a few clicks and scattering parts.

"Steward Lin, the speed is out of the charts!"

"Boom... Breaking the table? The speed is so fast! ”

Lin Youdi was very surprised, and they summed up nearly three years of experience to make this tachometer, which has a high measurement ceiling, and is used to measure a hydro-driven lathe.

The speed of the drill bit of the hydraulic lathe never exceeds 40% of the upper limit of the measurement, and the result...

"Cut the connection, turn off the fire, and release steam!"

At the end of the experiment, the effect was better than expected, Lin Youdi began to make records according to the regulations, and after countless failures, he finally made progress.

Flipping through the thick notebook, Lin Youdi looked at a tree-like diagram and fell into a trance, it was the so-called "technology tree" drawn by Lord Lang, and now what their experimental team had just arrived was a fork called "steam".

Wind power, water power, manpower, animal power, what Yu Wenwen said to Lin Youdi "steam power", is a force that has never been seen since ancient times, and it is said that it can drive large ships and iron wheeled vehicles.

Can it be done? Lin Youdi didn't know, and Yu Wenwen, who had always been full of confidence, didn't know, he just let Lin Youdi grope slowly, maybe for a lifetime.

The experiment was codenamed "Ascension", when was it successful? Unknown. (To be continued.) )