"How did you do that?"

The changes in Dengzhou made Xiao Ming very happy along the way, and now he was overjoyed that the duplex steam engine had progressed, the industrial revolution was just around the corner, how could he not be excited, and now he was already considering applying the steam engine to all walks of life. Pen & Fun & Pavilion www.biquge.info

While the two of them walked towards Bowen College, Lin Wentao explained: "Your Highness, it's actually very simple, I connected two ports on the cylinder, one is the front air intake, the other is the exhaust port, when the piston moves to the top, close the air intake, open the exhaust port, the hot water vapor waiting for the hot water vapor outside the exhaust port is the condenser, the water vapor out is instantly condensed, and the water vapor is sucked out of the cylinder, and at this time the cylinder is instantly close to the vacuum, and the piston is also taken down." “

After a pause, he continued: "Then repeat the action just now to make the piston cycle repeat, as long as the crank and connecting rod structure are connected, it can become a crankshaft movement, and I have tested it, the efficiency of the duplex steam engine is five times that of the Newcomen steam engine." “

"Well, yes, Lin Wentao, this time your School of Physics has really made a great contribution, and in the future, Qingzhou will undergo earth-shaking changes because of your merits, this king has to admit that this time the School of Chemistry really lost to you, hahaha......" Xiao Ming laughed.

Lin Wentao said at this time: "But Your Highness, the chambering of this cylinder is too slow, the speed of producing the duplex steam engine is very slow, can the first steam engine be used in the chambering of the lathe, so that the work efficiency of the lathe can be increased many times, after all, the lathe of the water conservancy workshop is greatly affected by the flow of water, and the efficiency is also very low."

"Of course, now you don't need to do anything else in the School of Physics, now you and the Instrument Division are working together to get the production line of the steam engine, whether it is money or people, this king will sell the palace and make it up for you." Xiao Ming spoke proudly.

What his fiefdom lacks most now is population, and the development of a steam engine will greatly alleviate this problem.

"Thank you, Your Highness." After getting Xiao Ming's promise, Lin Wentao couldn't close his mouth happily.

The two talked along the way to the Bowen College, at this time there were two steam engines in the physics laboratory of the Bowen College, one steam engine was the Newcomen steam engine, the other was the duplex steam engine, Zhang Liu and other craftsmen were observing the movement of the steam engine in the laboratory, one of the two steam engines was moving up and down, and the other was moving the crankshaft.

"Your Highness, Lin Wentao is a good kid, we just helped him produce the Newcomen steam engine, and they asked us to reassemble a steam engine." Zhang Liu said with a smile: "Now we are studying how to combine the boring machine and the steam engine. ”

Xiao Ming also saw the steam engine in the laboratory at this time, and when he saw these two real steam engines, he suddenly felt that he had come to Britain during the Industrial Revolution.

Lin Wentao said at this time; "Your Highness, this steam engine is not only my credit, but the entire credit of the students of the School of Physics.

"It seems that everyone is improving, well, that's what this king wants to see." Xiao Ming looked around at the students of the School of Physics and said. "It looks like this king has to award you a collective medal of honor."

"Your Highness." A group of students from the School of Physics said excitedly.

While everyone was laughing, Xiao Ming suddenly saw a small model of a steam engine made of glass placed on the podium in the middle of the laboratory, and under the model was an alcohol lamp.

He walked over and said to Lin Wentao: "You made this glass steam engine in the glass workshop?" “

"Yes, Your Highness, glass is easier to shape, so we made this model in the shape of a duplex steam engine." Lin Wentao said: "Then the equipment department restored the steam engine according to the appearance of this model. “

"It's a good idea, and all the devices developed in the future can use the method of making glass models first." Xiao Ming said as he turned to the real duplex steam engine in front of him, which was a duplex steam engine made of pure steel and copper, exuding an all-metal texture from top to bottom, which was the characteristic of the steel age.

With this steam engine alone, he already had the capital to catch up with European civilization.

Now that the first steam engine in Dayu was officially born in Qingzhou, the following problem is the mass production of steam engines and their application in various industries.

In this era, there were only two kinds of steam engine motion, one was the linear motion of the connecting rod, and the other was the rotational motion of the flywheel.

In order to speed up the use of the steam engine in the machine tool, Xiao Ming felt that it was necessary to teach on the spot, so he gathered all the students and craftsmen of the equipment department and began to talk about the movement of the connecting rod and the movement of the crankshaft, and the use of the flywheel.

The connecting rod body is composed of three parts, the part connected with the piston pin is called the connecting rod small head, the part connected with the crankshaft is called the connecting rod big head, and the rod part connecting the small head and the big head is called the connecting rod shaft, wherein the connecting rod small head is mostly a thin-walled annular structure, in order to reduce the wear between the piston pin, the thin-walled bronze bushing is pressed into the small head hole. Drill holes or mill grooves in the small head and bushing to allow splashed oil foam to enter the mating surface of the lubricating bushing and piston pin. “

After a pause, Xiao Ming continued: "The connecting rod shaft is a long member, and the force is also greater in the work, so in order to prevent bending and deformation, you should use the I-shaped section in the production of the shaft, this is because the strength of the I-shaped section is high enough, followed by the flywheel, which is a disc structure, through which the steam engine can make the machine rotate ......"

As Xiao Ming spoke, the picture began to appear in the minds of the students and the craftsmen of the instrument, the connecting rod, crankshaft, flywheel and other structures of the steam engine flashed one by one, and at the same time, the picture of the steam engine driving the movement of these components was also very clear.

With the current industrial base of Qingzhou, the steel required for the steam engine is not a problem at all, and the quality of the connecting rod, crankshaft, and flywheel is naturally not a problem, so he only needs to tell Lin Wentao and Zhang Liu to use these components, as for how to manufacture them? They have their own way.

After some explanation, everyone had a preliminary understanding of the use of the steam engine, many of them just understood that the steam engine should be developed, but many people did not understand what the steam engine was for, and now they finally understood the importance of the steam engine.

"Your Highness, we understand, we will produce flywheels when we go back." Zhang Liu said, Xiao Ming said very clearly, as long as a certain torque is applied to the flywheel through the connecting rod and crankshaft, the flywheel will rotate.