Daming: The system rejected my request for salted fish

Wu Qiang chuckled and immediately replied:

"We have to thank the Vice President for his guidance. Otherwise, we wouldn't be able to make something as magical as cement."

As he spoke, Wu Qiang picked up the bag beside him and took out a gray stone brick from it.

"This is the stone brick our construction team made with cement. It is not only very hard but also can be shaped into any shape."

"Unfortunately, the grinding of raw materials and clinker is quite troublesome. If we want to produce cement in large quantities, we need a lot of manpower."

As he spoke, Wu Qiang looked at the gray stone brick in his hand and couldn't help but sigh.

But at this moment, Wei Wu suddenly spoke.

"Wu Qiang, you're being blinded by one thing. There's clearly a better way, so why are you only considering manpower?"

After saying this, Wei Wu pointed at Song Zhong, Sun Chang and others.

"The steam engine has already been built. With a little modification, it can perfectly replace manual grinding."

"As for how to do it, the three of you can discuss with each other and figure out how to make the steam grinder."

Having said that, Wei Wu looked at all the craftsmen below the stage again.

"This is what I want to tell you. Next, I hope you can use your imagination and innovative spirit."

"How to transform the steam engine and apply it to other places to replace human and animal power and improve work efficiency."

As Wei Wu was speaking, Song Zhong and Sun Chang looked at each other and then stood up.

The first to speak was Song Zhong.

"Mr. Vice President, we have actually considered this as well, the idea of ​​using steam engines on ships that you mentioned."

"The current steam engine is too small to drive such a large ship, so we must make the steam engine even bigger."

"We envision making a water tank that surrounds the boiler, and then having several or even dozens of pipes connected to the boiler."

When Wei Wu heard the plan proposed by Song Zhong, he was really shocked.

Isn’t this a fire tube boiler?

Connecting a metal pipe from the rear of the boiler and placing it in the water tank can increase the contact area between heat energy and water.

The principle is the same as the flue of a kang in cold areas, which utilizes heat energy. Steam locomotives are basically designed in this way.

Just as Wei Wu was marveling at Song Zhong's advanced design, Sun Chang beside him also spoke.

"Vice-President, you said in class that water vapor can absorb heat and expand in volume."

“The process of switching from high-pressure steam to low-pressure steam is releasing energy that can be harnessed through mechanical operations.”

"So I had an immature idea, which was to connect multiple pipes and place some of them at the top of the water tank."

While Sun Chang was speaking, he also took out a few models. From the workmanship, it was obvious that they were the work of a carpenter.

It is not surprising that it was invented by Song Zhong, because he was the only one who knew the structure of the steam engine best.

Holding the model, Sun Chang pointed at it and explained to Wei Wu.

"Once the boiler boils, the steam rises and is heated again by the pipes, allowing it to expand even more."

"But this method is a bit wasteful, so we are thinking about whether we can design a second cylinder to make use of it."

If Wei Wu was just shocked just now, now he was so shocked that his jaw dropped.

These two guys not only came up with the fire tube boiler, but also the later triple expansion steam engine.

Simply put, a triple expansion steam engine adds cylinder transmission to maximize the use of steam kinetic energy.

It is a power device that is actually used on large ships.

For example, the famous Titanic was powered by a three-expansion four-cylinder reciprocating steam engine.

Although this steam engine is more efficient and powerful, its design and structure are also more complex.

Moreover, because the low-pressure cylinder has to be made very large, the steam engine itself will be extremely heavy.