Chapter 999

In fact, the Han Empire already had mechanical driving devices, but frankly speaking, it still relied on manpower to drive, which was not a mechanical driving device in the real sense.

The Navy now has 15 gunships, of which the "Quanzhou" is equipped with a gear mode driving device, but it is human (animal) power that makes the gear generate power, and only a small part of the gear structure uses metal.

The so-called gear driving mode can be regarded as an alternative "donkey pulling mill" super complex version, which is composed of many large and small gears and bearings to form the force increasing mode of large and small gears.

The test of the driving device of "Quanzhou" was not successful. Firstly, the materials composed of parts could not support wear, and secondly, even if there were problems in the arrangement of gears, resulting in too short service life, too high failure rate, and so on.

Layout is a component relationship. In fact, there are layout position errors.

Historically, the steam engine has been studied and installed on ships. It is not unreasonable to adopt the layout of the rowing device on the left and right sides of the ship's side. The main reason is that the horsepower is insufficient. The layout can play a greater role under the limited horsepower.

The first generation of marine thrust device is the kind of blade like a circular waterwheel. It is not the blade like a propeller. It may not be lack of imagination. It is on the premise of insufficient power. The blade area of the circular waterwheel is large after rent, and then the added rolling mode can play more functions.

"Your Majesty, the thrust device is arranged at the stern, and the position of the rudder has been changed..."

The Horse Club spoke a lot of professional terms, including some ship parts and related parts.

Some of Liu Yan can understand, but more can't.

The rudder is a component that controls the navigation direction of the ship. It can not be arranged at any position. At the same time, the rudder size of each ship is not the same. It is still necessary to consider the tonnage of the ship itself and then study how to arrange it. It is also to design the rudder size according to the tonnage of the ship.

"The rudder of the Quanzhou ship has been changed 17 times. Finally, the position and size of the layout can be determined to maximize the flexibility of the ship's steering." The "Quanzhou" mentioned by the Jockey Club is currently the main base of Jiangnan Shipyard: "the rudder is redesigned and the hull is also redesigned."

Liu Yan remembered that there seemed to be a memorial that mentioned that the "Quanzhou" was only used for less than two years, and there was a problem with the keel that could have been used for ten years. Under the premise of continuous maintenance of the keel, there was still a big trouble that the navigation had to be stopped.

Facts have proved that as long as it is related to science and technology, there is really no one thing that can be achieved overnight. All of them are constantly experimenting and constantly improving in the discovery of problems. The degree of perfection may reach 99%, but they have found problems that can not be reversed, and finally overturned the overall design.

If you don't get involved in a certain field to a certain extent, you won't find that field is far more complex than you know. It can even be said that the more you study this field, you will find that the confusion doesn't become less and less. On the contrary, more confusion will arise with the deepening of research.

When a layman looks at a ship, he is looking at an object that shows a long shape.

When a knowledgeable person looks at a ship, he will only look at the hull and wonder whether such a design is right or not, and whether the design in the horizontal plane and below has reached the best.

The ship is only sailing in the water. We must consider what kind of line it should be in order to minimize the resistance of the water itself. After repeated tests, it is found that the original triangular sharp lines or perfect arch shape will be the best design scheme.

Further in-depth research will show that the razor shape should be below the horizontal plane, which will not only minimize the resistance, but also provide the maximum stability of the ship.

Liu Yan has been on the iron ship. When he saw that the deck was made of metal, he got the answer that only a layer of iron sheet was wrapped.

The iron ship is divided into three layers, with only one deck and two cabins.

The flagship room is placed in the middle and back position, just between the stern mast and the midship mast.

"The mast is a wood structure..." when sang Yu looked far away, the mast was also painted black. When he looked closer and knocked again, he found that it was not iron: "that's right. The sail is fire Huanbu. Since the sail can't burn, it doesn't matter whether the mast is iron or not."

Yes, sang Yu is talking about huohuanbu.

It is said that Liu Che, Emperor Wu of the Han Dynasty, obtained a piece of huohuan cloth from the western regions and found that it could not be destroyed no matter how it was burned, which was regarded as an invaluable treasure.

The so-called huohuanbu is a kind of stone cotton cloth. For a long time, it has been regarded as a priceless treasure. If anyone can have it, they need to hide it and never let people find it. Otherwise, some people want to kill the door and rob it.

There are asbestos mines in Zhuxia, more in Hexi area, and only two in the south.

It was not the people of Zhuxia who first discovered the characteristics of asbestos mine, but the people from ah San, and then spread to the western regions.

If you read the history books, you will find that the people who sell fire Huanbu as a treasure to the land of Zhuxia are either Western people or so-called Tianzhu people.

When the Han Empire swept across the western regions, there was a family who wanted to exchange the secret of asbestos for a price to live. Of course, the secret was pried by the Han people, and that family did not win the chance to live.

The navy has long wanted to obtain a sail that is not afraid of fire. The four Han people who learned the secret of huohuanbu received a reward from the Navy. They got what they deserve. The Navy's mastery of the secret of huohuanbu is equal to that of the center.

When a thing is no longer a secret, there is nothing strange, especially when the national power is used for production, there will be less things, because there are not enough minerals to be found, and it is definitely not due to the lack of productivity.

The huohuanbu, which was originally a treasure, has become commonplace only because the navy has mastered the production technology.

"Just an iron shell?" Liu Yan put on a tour. There is a metal structure inside the hull, but in fact, the main material is wood: "since it is a wood structure, what is the consideration of using a metal waterproof hatch?"

The Horse Club showed an embarrassed expression and replied, "have relevant concepts and accumulate experience."

Yes, this is an experimental ship. The premise of ensuring that it will not sink when it goes into the water is to maximize its utilization value, regardless of whether it is a reliable thing. It can be installed and built.

Liu Yan got off the bottom hold and didn't check the sailor's lounge. He came to the stern.

It is emptied here. If you look at some architectures, you can find that they are deliberately vacant for something. If you look at the style of the architecture, you will find that they are not randomly decorated, as if they are waiting for installation.

"I think the armored ship is not driven by wind." The horse club didn't know what it was because of. There was a fanatical expression on its face: "Quanzhou can run 16 knots as fast as possible with mechanical drive. Although it can only maintain its efficiency in less than five minutes, I believe that the ship should use mechanical energy, not relying solely on natural wind."

What the jockey club didn't say was that the "Quanzhou" ran 16 knots, but the price was that the gear unit collapsed. At that time, 24 people supervised and maintained, of which 13 closed their eyes forever.

"The 'Quanzhou' is nearly a thousand tons and can run 16 knots. I guessed..." the horse club said excitedly, "if you can ensure the operation of that device and drive ships below 100 tons, can you run 35 knots?"

Liu Yan couldn't hold back. After laughing, he looked at the horse club from excitement to constipation and reminded him, "volume."

If the device installed on a thousand ton ship wants to be installed on a hundred ton ship, the machinery must be reduced in size. It needs to consider whether it can play the same efficiency once reduced.

"..." of course, the horse club took into account the reduction. If someone else opened his mouth, he would spray. Facing the emperor, he could only hold it and flattered: "Your Majesty is holy."

People engaged in scientific research may be bronze in other fields, but they will be king in the fields they are familiar with.

They are not afraid of repeated failures in a scientific research project, because all failures are to accumulate experience for success.

For those engaged in scientific research, what they fear most is bureaucrats. Those bureaucrats clearly don't even know a fart. They like to talk casually by virtue of their official position. They call it guidance. If they do not do it, they are doomed to fail. If they don't do it, they will lose the opportunity to continue to fail.

Liu Yan mentioned the "idea", at least he was right.

The horse club was depressed and then had a greater excitement.

Many of the scientific and technological products of the Han Empire were raised by the emperor. Those engaged in scientific research will not take it for granted that the emperor knows everything, but those engaged in scientific research understand that the emperor must have the quality and knowledge of scientific research.

"The animal power device made by the Navy..." Liu Yan touched the metal support and said with a smile, "I know it's a transitional product at best, but let them do it."

The horse would stop breathing and look at Liu Yan's mouth. His heart was beating violently.

"You should try everything, otherwise how can you know if there is any result?" Liu Yan didn't pay attention to the horse club. He took a few steps to look at a bite device on the ground: "animal power drive is naturally not good. It is doomed to failure. It is only enough accumulation for gear application, that is, gear application has achieved success."

The horse will continue to hold his breath, and the sixth sense of harvest will become more and more intense.

"It's over today. You can go to Chang'an." Liu Yan squatted down and looked at the occlusal device. He guessed what it was used to fix. He said, "the Shaofu is working on the 'big teapot' plan. You may be able to join in."

The horse will know that his harvest is this. When he recovers his breathing, he breathes in and out. He doesn't know whether it's suffocated or something. His face is full of flushing.

Of course, the so-called "big teapot" plan is the research on the steam engine. The relevant work has been carried out since the 10th year of Yuanshuo. After four years, we have figured out how the steam is generated. From the beginning, we simply test the boiling water to observe the steam, and then test the thrust of the steam. Various pipes play the steam function.

Liu Yan went to Chang'an before leaving and found that relevant personnel had entered the stage of observing steam entering the cylinder. He also heard that there had been several explosions before. Fortunately, there were only injuries and no one died from the accident.

Once the research of steam engine enters the cylinder stage, the rest is to find out what layout method the internal structure of the cylinder should be.

Liu Yan is not familiar with the steam engine, but he knows that the cylinder needs two things, sliding valve and piston. No matter how much, he has no relevant knowledge.

The "big teapot" plan shocked the researchers just because Liu Yan mentioned the sliding valve and piston. They wondered what was missing before. It just took time to think from scratch. It also needed repeated failures. After countless failures, they constantly changed the components and structure, and finally produced results.

Liu Yan doesn't know what kind of layout method the sliding valve and piston of the cylinder should be, otherwise he should preside over the test himself. Although he is eager, he can only wait patiently. Maybe this year's "big teapot" plan will produce results, which may take another three or five years or even longer.

If the "big teapot" project succeeds, the Navy will not benefit first. It will definitely be used on land first.

Just knowing that steam generates power does not mean mastering the use of power. Next is the supporting of mechanical science and technology. Otherwise, the power generated only has the effect of evaporation if there is only a steam engine without supporting connecting rod mechanism and flywheel device.

"Quanzhou" to engage in gear machinery, isn't it groping for the power output of the steam engine?

The kinetic energy of the steam engine drives the flywheel to run. The next thing is the bearing and gear. When they rotate, they are an application of power. As long as they can rotate, the next thing is to consider increasing horsepower.

Liu Yan looked around and found that the layout of this place was waiting for the installation of relevant machinery. He wondered how to choose the stern layout because "Quanzhou" had proved that it was inappropriate to install it at the stern.

"Kuaiji has built a set of grinding tools and has cast a number of gears." The horse club is not sure whether Liu Yanzhi knows such a thing. When asked, he naturally dare not hide: "as I know, steel is used."

Liu Yan nodded and said nothing else.

It's great to have the spirit of exploration, especially in science and technology. Isn't it the premise of trying everything that can produce results?

Perhaps because you want to experiment with something, you don't come up with what you want to do, but you have produced new scientific research achievements. The science and technology tree is such a thing.

When Liu Yan founded the country in the 12th year of Yuanshuo, the annual output of pig iron had reached the output of Russia in the middle of the 19th century.

Perhaps it should be said that the total output of pig iron in various countries in the world today is probably a fraction of the Han Empire.

The Han Empire now produces 260000 tons of pig iron and 43000 tons of steel every year.

It doesn't look like much, but what we need to know is that it's only A.D. 356, not 191xx!