Fang Zian actually doesn't know much about the principles of steam engines. Just imagine, even the people of later generations have a terrifying capacity for knowledge, but who would seriously understand the manufacturing principles and methods of a machine. And it's still a steam engine.

In the eyes of later generations, it was actually an old antique that had long since been eliminated in the garbage heap of history.

Part of the knowledge Fang Zian has in this area comes from the limited introduction in the textbook when he was in school. The reason why he has to learn it is because it is a knowledge point that may be tested in the exam. The book introduces the steam engine, which created the industrial age.

He still maintained some respect for machines. So in addition to knowing that the steam engine was invented by a guy named 'Watt', Fang Zian also knew some simple operating principles. This became Fang Zian's most superficial understanding of steam engines.

However, Fang Zian's real exposure to real objects was after he joined the army. After being selected as a special forces soldier, during an exercise, Fang Zian saw those behemoth-like trains and locomotives in a hollowed-out military base in the mountains of the west. These rusty trains

Steam locomotives are actually obsolete things, but they are hidden and preserved in deep caves. This may sound funny, but the era when Fang Zian came was already an era of electrification, and things like gasoline engines and diesel engines were

It can be called backward machinery, but the country has preserved these thousands of obsolete steam locomotives, which is really puzzling.

But soon, Fang Zian understood why. All of this was prepared for extreme situations. The world at that time was not peaceful. The clouds of war always shrouded the earth, and various weapons that could destroy the world emerged in endlessly.

.Once the war starts, it is likely that all intelligent, electrified and information-based things will be wiped out. By the end of the war, all modern things will be destroyed. Only these machines that do not rely on any electricity or intelligence will be the most reliable. Very

Maybe in the end, these primitive machines from the perspective of later generations will be the last thing that can be relied on.

To put it simply, all of this is prepared for the most extreme times. It is unlikely that humans will return to the Stone Age due to war, but it is very likely to return to the age of steam engines. It is conceivable that, except for those thousands of steam engines

In addition to the front of the locomotive, there may be many similar machines that have been obsolete by the times hidden in other places, which can be reused in extreme circumstances.

The codename of that exercise was "Doomsday", and Fang Zian later understood the intention of the codename. As part of the exercise, one of the tasks of Fang Zian and other special forces was to turn a rusty car into a car in a short period of time.

The locomotive started running again, and it was at that time that Fang Zian really came into contact with the steam engine that could make the train move. This was the psychological and knowledge basis for Fang Zian to dare to produce this thing.

The working principle of a steam engine can actually be described in the simplest terms, which is to convert and utilize the mechanical energy generated by steam, using mechanical levers and various torques to change the direction and magnitude of force transmission, and finally use it where you want it to work.

Although the principle is simple, it is extremely difficult to actually create it. Although Fang Zian does not expect to build an extremely sophisticated and perfect machine, Fang Zian only needs a machine that can push the crankshaft to rotate and do work, and can transfer energy.

Just convert it. As for the efficiency?

, how strong it is, and whether it can push the ship, that is another matter. The first thing Fang Zian has to solve is the problem of presence and absence, and verify whether the structure he drew based on his unclear memory is wrong.

What Fang Zian wants to build first is a small verification machine. Only after the verification of the prototype is successful, improved, and confirmed to be operational, will he spend a lot of money to create a real steam monster. For several days in a row, Fang Zian went in and out.

Among the various foundries and blacksmith shops in the capital, a few days later, a cast iron boiler as tall and as thick as a large water tank and a pile of iron pipes and strange-shaped parts appeared in the back house of the Fang family. Then, Fang Zian called out

I enlisted the help of several nursing staff at home and started to get busy next to the pond in the backyard.

No one knows what he is going to do. Chunni, Lao Huang and everyone else don’t know what happened to Fang Zian? He made a lot of inexplicable things in the back garden. Is it possible to use iron to make a rockery scenery? Question

Fang Zian, Fang Zian didn't explain at all, he just waved his hand and said: "You don't need to worry about me, just do your own thing. I'm not crazy, and I'm not bored, so don't worry."

Chunni had no choice but to let him do what he did. The only thing she worried about was that as spring was approaching, her husband actually put away his books and engaged in such inexplicable things. I was afraid it would be very detrimental to his academic achievements. After more than ten days, Chunni couldn't bear it anymore.

, ran to Wanchun Garden to ask Qin Xiqing to persuade Fang Zian. Qin Xiqing was preparing for the Wanchun Garden singing party on March 3, but still took the time to come. When Chuni led Qin Xiqing to the back garden, Qin Xiqing was caught in front of her eyes.

The situation was shocking.

A huge iron lump with various iron boxes, curved iron pipes and various discs with gears is crawling on the side of the bamboo forest by the pond. It is said to be a rockery scenery, but it is not at all. It is more like a monster crawling on

It looked like a huge iron crab on the ground. On such a cold day, Fang Zian was sweating all over and was only wearing a single shirt. He rolled up his sleeves and walked around the iron monster. From time to time, he went up and knocked it.

The whole back garden was filled with jingling noise.

When Fang Zian saw Qin Xiqing coming, he said happily: "Xiqing, you came just in time to see a good show. It's a coincidence that you came here, just in time to witness the first operation of my thing."

"What are you... doing? What is this?" Qin Xiqing asked in shock.

"Here, hey, you'll understand in a moment. Xiang, is the disc of the waterwheel connected to the crank? Check it again. Fugui, go and push the coal cart you bought yesterday." Fang Zian waved his hands and ordered.

.

Qin Xiqing and Chun Ni stared at Fang Zian, pointing here and there, shouting and busy, and several nursing staff were busy under his command.

"Miss Qin, look, he has been busy with these things for the past half month. It will be March soon, and spring will be in the middle of March. Do you think I am being impatient? Please persuade him.

." Chuni whispered.

Qin Xiqing chuckled and said, "You are his wife. If you don't tell me, I will tell you."

Chuni said softly: "He will definitely listen to you, but I can't persuade him. Besides, are you an outsider?"

Qin Xiqing smiled, feeling relieved. Chunni could still carry it clearly. She knew her position. She just came in a day earlier, but she didn't take it for granted.

"Let's see what he does. Zian's actions often make people find it difficult to

I guess, he spent half a month working on this, so he shouldn't be messing around. Let's see what it is and what its use is. Let's talk about it later," Qin Xiqing said.

Chuni nodded and said, "That's right."

After a lot of work, everything finally seemed to be ready. Fang Zian took it upon himself to pour buckets of clean water into the boiler, and then sealed the water injection port.

"Light the fire and boil the water!" Fang Zian shouted.

An assistant piled firewood in the lower fire chamber of the boiler and lit the fire. After the firewood crackled and burned, he threw in large pieces of pebbles and ignited them. Under the combustion support of the bellows, the pebbles soon burned red. , the area around the boiler becomes very hot.

Even with Qin Xiqing's intelligence, he didn't understand what Fang Zian was doing. He was boiling water? What was he doing? Isn't this big stove superfluous? It's really disturbing.

Fang Zian stared at a wooden pole inserted into the small hole above the boiler, and saw more and more heat coming out of the small hole. Finally, with a roar, the thicker part below the wooden pole was pushed up, completely blocking the small hole. , Fang Zian knows that the steam pressure inside should be quite high. If the wooden pole can be lifted up, the steam pressure inside is already very high. The wooden pole actually also plays a role in measuring the water level. If the water level is too low, the pressure on the wooden pole will The scale will be realistic, and this is also a crude method that has no solution.

The water in the entire boiler was boiling, making a terrible rumbling sound. This boiler was cast as a whole, but because it was just for verification, Fang Zian did not ask how good its smelting technology was, so the endurance of this boiler should be It was very limited. Fang Zian didn't want an explosion to happen, and it was almost time. So he started to twist the valve of a cast pipe as thick as an arm connected to the boiler.

When the valve loosened, the next moment white steam spurted out from the joints of all the large and small pipes, in all directions, up, down, left, and right, like a bulging rubber ball with dozens of holes poked around it. All the gas inside was spewed out. Even though it was February, the weather was still cold. Steam spewed out, and a white mist billowed out, covering almost everyone around it.

"Damn it, the sealing wasn't done well, I knew it would be like this. It needs to be cushioned with cooked cowhide." Fang Zian's curse came from the mist. Although he couldn't see his face, Qin Xiqing and Chuni could imagine how furious he was.

"Increase the firepower, pull the bellows, hurry." Fang Zian shouted.

The sound of the bellows pulling became more frequent, the sound of the flames burning was loud, and the firepower was obviously increased. There was a terrifying rumbling sound in the boiler, boiling water was boiling inside, and more white gas came out from the side, and A loud squeaking sound was made.
Chapter completed!