Wan Xueer doesn't understand the steam engine, but Bai Minghe does, and he doesn't dare to say that he is very proficient, but he still understands the basic principles. For the current Daming, the most difficult problem to solve is the problem of tightness and work efficiency.

Single-stream is certainly not suitable.

Bai Minghe asked Wan Xue'er again: "You are talking about air, not steam, there is nothing wrong." ”

"Yes!" Wan Xueer saw that Bai Minghe was so serious, and immediately gave Bai Minghe an affirmative answer.

It is definitely not possible to achieve the high-end thing of the steam turbine, Bai Minghe himself has not drawn a complete conceptual map, so the people of the Xingshou Courtyard have definitely not made it, so the only thing that can be used is the reciprocating single-flow type.

And it must be multi-cylinder, otherwise it is impossible to stabilize the dìng output. After the steel cylinder reaches a little atmospheric pressure, the force that is not steadily output will be pushed back by the air pressure of the steel cylinder, and it is impossible to reach the bursting steel cylinder, or the process of pressurizing to the launch pressure.

"It's called Huaiyu." Bai Minghe took off the silk clothes on his body in a few clicks: "Change me into a linen clothes." ”

Huaiyu was thinking in the room, Bai Minghe had finally returned, whether he should pretend to be pitiful, or should he cry, or make a noise, which one would be more effective. I've managed to find something funny, and Angela is still waiting for her to fix the seal on the door of the workshop.

Sun Yuanjun, this sister doesn't love herself anymore, didn't she destroy two houses and blow up a few walls.

When Huaiyu was thinking about how to sell a cute white crane, and then help herself say good things and lift the ban on the workshop, a maid trotted over: "Your Royal Highness Princess, the young master instructed Her Royal Highness to change into the cloth clothes of the workshop, and the young master asked Her Royal Highness the princess to accompany the young master to your workshop." ”

"Ahh Huaiyu exclaimed. I couldn't be happier.

Hurry up and change your clothes, send someone to inform Angela, and of course, the most important thing is to get back those who have been scattered and planted in other research groups in the Xingtou Academy.

For Huaiyu, Bai Minghe is willing to see the designs they make, which is a very happy thing.

The white-named crane left the house and left in a hurry. I haven't given an account to anyone. Not long after Bai Minghe left the house, Wei Shaoqing came, Emperor Ming summoned Bai Minghe, and the people of Baima Pavilion only knew that Bai Minghe went to the Shanglin Yuan Xingshou Courtyard Workshop, and the rest did not know, Wei Shaoqing had no choice but to go back to restore his life.

Emperor Zhu Qiyu of the Ming Dynasty is discussing with Yu Qian the location of the new grain trial.

Nanjing here selected a few suitable places around Nanjing, and then reported it, for the Nanjing Sixth Department. This is not a trivial matter, and high-yield new grain is a major matter of the country, so it is natural to report it.

So Zhu Qiyu also wanted to hear Bai Minghe's opinion, but Wei Shaoqing went to say that Bai Minghe went to the Shanglin Yuan Xingshou Courtyard Workshop.

"Why don't you go to the workshop?"

"If you go back to Long live, don't say that this place is a slave, there are less than 100 people who can enter the entire Nanjing City, and those who can enter the inner workshop can be counted on one hand. Even Wang Cheng is in charge of the defense over there, and he only has the token of the outer gate. He couldn't just enter the inner door, which had artillery on the wall. "Wei Shaoqing came to Nanjing. In order to protect the emperor, he still understood many rules in Nanjing.

"Go check it out. Don't break in, just say I'm going. After Zhu Qiyu instructed, he said to Qian: "I'm afraid that the real treasure of the white crane is here, I know that the Tianyin machine is made there, and it is reasonable to guard it tightly, and I have also ordered to check all the craftsmen for three generations." ”

"Long live that, the minister wants to go and see it." Yu Qian was curious. In addition to curiosity, there are also expectations, and he said to Zhu Qiyu at the moment: "Long live, Bai Minghe said that he was able to let the goods from Xi'an Mansion to Turpan in five days and five nights, and the minister is looking forward to it!" ”

On the other side, the Xingshou Institute Research Center.

There are already samples of the steam engine here. There are four sets, three of which are genuine products from the workshop, and one set is very different, which is the truth that Huaiyu and Angela found out from the physics books of the white crane, and then designed it themselves, not to mention whether it is reasonable or not, at least it can be used.

Before the three sets of other best tests were ready for the test machine, Bai Minghe first looked at the set that Huaiyu brought with the craftsmen.

"My lord, although this set has little power and is very easy to break, it provides a few excellent ideas, because there is a prototype machine, so I can wait for the third real usable machine to come." The craftsmen in charge here are telling the truth, these people don't know how to stammer, and they don't know how to flatter.

Huaiyu was unhappy when she listened, and Bai Minghe motioned for her not to speak.

Opening the lid of the machine, Bai Minghe only took a look at it and knew what it was: "V-shaped four-cylinder single-flow type." This design is very clever, but I can't make the crankshaft with super steel, and this kind of round steel sheet is not suitable at all. ”

Shirana immediately drew with a pencil what a real car crankshaft would look like.

"This is the best crankshaft, if the material is too poor, it is not strong enough, but if the material is good enough, then Huaiyu can use it, and it is still the same old saying, not the best, only the most suitable."

"Your Excellency is wise!" The craftsman added: "The design of the spherical throttle valve is more suitable than the original opening and closing type. However, it can only be used for vertical steam engines, and the best use for horizontal steam engines is parallel channel valves or conical valves. ”

The white crane is pretty good at physics.

They use it by adding a cone to the piston in the steam pressure chamber, and when the exhaust rises, this cone pushes open another cone located at the inlet, and then allows the high-pressure steam to rush in and push the piston again. Then, because of the descent of the piston, the intake was closed without the force of the cone.

Then the steam compartment on the other side will also repeat this action.

This is a horizontal reciprocating single-flow steam engine, because of its long length, it is definitely the most suitable for trains.

If you add a gearbox, you can also use it for a generator.

The test of the white crane will definitely not just let the steam engine turn, he needs to carry a weight test, the most suitable way is to have a railway, so it doesn't matter if it is short, you can make a try.

"How much rail is there?" Shira-nae asked the person next to him.

"Back to the adult's words, the twelve steels are now 7,000 zhang. 100,000 square feet of high-quality timber transported back from Nanyang, and 90,000 concrete stone sleepers are still in production. It's just that your lordship is going north, and no one is in charge of this matter, and many things are waiting for your lord's orders. ”

Shirana reached out and patted the steam engine that the craftsmen thought was perfect.

"Good or bad, you always have to try to know. This thing has a lot of strength, ordinary small objects are not worth trying its strength, hurry up and build wheels, this official wants to see how many carriages it can pull! ”

"Yes!" The crowd responded in unison.

The steam engine is not difficult, the sealing problem is solved after having eucommia gum, and after having high-quality steel, these are not difficult.

The only thing that is difficult is that Huaxia has had a solution hundreds of years ago, and that is welding. As early as the Spring and Autumn Period, there was already a primitive welding technology, and the welding used by Daming now is to buckle the red-hot steel plate, and then forge, which is the forging and welding technology of Daming.

Compared with modern technology, this is naturally not worth mentioning, but in this era, the length of four meters, the diameter of more than one meter of thick steel cylinder to make zuò out, and ensure that there is no air leakage, it is enough to prove that the technical level of the Ming Dynasty has been extremely high, even if the main body of such a steam engine requires ten excellent blacksmiths to work hard for a month.

"Brother-in-law, why don't you care about the one we made zuò, that one is also very useful." Huaiyu saw that Bai Minghe was busy, so he held Bai Minghe's hand with an unhappy face.

"You guys are so good, I have an idea. But this time, don't pull in the main craftsmen, just pull some hands and work for you, I'll give you an idea, let's let the steel mill build a propeller first, and then use this steam engine to power the ship? ”

"Boat?" Huaiyu didn't believe it.

The white crane was full of confidence and began to draw on a blank piece of paper.

It is impossible to use real propellers in the bottom compartment, and the problem of sealing the shaft alone can kill people. Therefore, Shirana Crane painted the shape of a large waterwheel, and the rowing wheels placed on both sides of the hull can definitely replace human power to row the boat, and it is not too much trouble to make the zuò at all.

Pick a flat-bottomed river boat in the shipyard of the Ministry of Industry, not too much, a thousand materials are enough.

Without putting on the sails, he directly started the modification, and then added large runners on both sides, and the white crane estimated that the speed of this thing was all released, and in the state of an empty ship, it could definitely exceed fifteen knots. Of course, the buildings on the deck were greatly reduced and the weight was reduced, and Shirana Crane was confident that this thing would reach twenty knots.

One of the more important reasons is that although the steam engine of Huaiyu is not strong and durable, it is lighter and faster than the bulky and practical one.

Of course, it's not the kind of Cheng dù that runs once and then scraps, how can you run for one or two thousand miles before you change an axis.

There is no high-precision lathe, no high-strength steel, can make a primitive, but the principle is the same crankshaft, I can't help but say that this is definitely because of silver, this is the design result of spending silver, I don't know how much labor and steel are wasted.

Bai Minghe drew on the paper while explaining to Huaiyu and Angela.

On the other side, the Ming Emperor was standing at the door, and as the Ming Emperor, he could naturally enter, and no one dared to stop him. Yu Qian can also say that at least those who come with the emperor will definitely be able to enter. But those accompanying guards can't, even if the guards here are also from the Forbidden Palace, they don't dare to let them go casually if they all know each other.

Take notes one by one and check your belongings.

Zhu Qiyu sat aside and watched, but instead of being angry, he said: "Since this place is important, you must guard it carefully." If there are idle people who dare to break in, I am here to give you the authorization, draw a line in front of the door, and those who break through the line can be cut first and then played. Especially the Tianyin machine camp, it is even more tightly guarded! (To be continued......)