The Rise of the European Emperor

"Congratulations, Ada, I finally got this thing out." Marin said loudly amid the loud turning of the steam engine.

"Thank you for providing Mr. Watt's ideas." Da Vinci smiled happily. After he finished speaking, he took Marin to a place far away from the steam engine so that he could talk.

"Well, it seems that it can be used for pumping water!" Marin said thoughtfully, looking at the steam engine that could not be turned.

"Pumping water?" Before, Da Vinci was busy with the research and development of the steam engine, and he didn't pay attention to the purpose of the steam engine.

"Of course, the steam engine is naturally for pumping water. I have a deep mine on the island of Ireland, with a depth of up to 50 meters. If there is no steam engine to pump water, it is estimated that the mining will not be able to start." Zinc mine. Fan Gaolei has already sent people to dig deep wells. As long as the mine is found, then first of all, a water pump is needed.

After all, Mount Tara is in the eastern plains of the island of Ireland, which belongs to the humid climate area, and the groundwater is bound to be abundant. Even after the discovery of an underground river with surging groundwater, it is possible to block the underground river by digging another well to cut off the underground river, so that the groundwater will not spew out. However, in the mines over there, underground water seepage is inevitable. Even if the underground river is blocked, some water will seep through the moist soil layer. Therefore, there must be a need for the pump to work frequently. The water pump only burns a little coal, and the cost is not high.

"Then...what pump do you use?"

In Europe today, there are no long-distance water pumps. Windmills pump water, and more like windmills drive something similar to a waterwheel, lifting water from low to high.

However, the water pump problem is not a problem for Marin. There are three types of pumps that Marin knows and understands—centrifugal pumps, screw pumps, and piston pumps.

Speaking of which, centrifugal pumps are the most commonly used pumps in rural areas in later generations. However, Marin was the first to rule out centrifugal pumps. why? Because the centrifugal pump relies on the high-speed rotation of the impeller to generate suction and pump the water up. But the problem lies in a "high speed". The speed of the steam engine... not to mention. Ada came up with a Watt steam engine with a speed of less than 50 revolutions per minute, which was used to drive a centrifugal pump. The Tara lead-zinc mine needs to pump water to a height of 50 meters, therefore, the centrifugal pump is out first.

Next is the piston pump. In fact, the piston pump is the best pump for pumping deep groundwater and even oil. Those "kowtow machines" that pumped oil in later generations used piston pumps to pump oil. This kind of kowtow machine, there were several kowtow machines near Ma Lin's grandmother's house in his previous life.

Moreover, this vertical steam engine is actually a natural kowtow machine. If the "sun and planetary gear transmission system" is canceled, the connecting rod of the vertical steam engine will reciprocate up and down, which is very suitable for supporting the piston pump.

However, Marin knew that the biggest problem with piston pumps was the "piston". To pump groundwater from such a deep underground, it is obvious that the air-holding performance of the piston should be very good. Otherwise, if you don't hold your breath well, you may not be able to work.

Marin can't guarantee that it can produce a good quality piston pump now, and even can't guarantee that the piston pump is well closed. Therefore, no matter how good the piston pump is, Marin can only give up. Who said that the processing level of this era is too poor...

Next, there is the screw pump. The structure of this kind of screw pump is very simple, that is, a screw in the pipe is constantly rotating, and it relies on the volume change of the sealed cavity formed by the screw and the bushing (the inner wall of the pipe) to inhale and discharge the liquid.

In fact, this water pump was invented in Egypt by the great ancient Greek scientist Archimedes as early as BC. According to the ancient Greek historian Diodorus, Archimedes saw the local Egyptian peasants carrying water from buckets for irrigation. The way.

Archimedes made a big spiral and put it in a cylinder,

A crank handle was made at the top, and the water outlet was opened on the side of the top. As long as you keep shaking the handle, the water will flow out continuously.

Later, this kind of simple artificial water pump quickly spread in Egypt. After the Roman Empire conquered Egypt, the Romans also learned from the past. But unfortunately, after the invasion of the Germanic barbarians, European technology went backward for hundreds of years, and in Western Europe, this kind of thing was also lost. However, Western Europeans have invented the waterwheel, a tool that relies on natural forces to lift water, and they do not need this kind of Archimedes screw pump that relies on human power.

The force required by the Archimedes screw pump is to rotate, and the Watt steam engine can just provide stable rotational force. Therefore, the combination of the Watt steam engine and the Archimedes screw pump is absolutely the perfect combination.

Marin explained the history and principles of the Archimedes screw pump to Da Vinci in detail, and Da Vinci thought about it and said:

"I really wanted to read this historical introduction, but I didn't pay too much attention at that time. Because, at that time, I felt that this kind of water pump that was shaken by human power was not as convenient as a waterwheel driven by natural force, so I didn't pay much attention to it. However, now With a steam engine, it seems that it can really be used..."

Marin didn't talk nonsense, he directly called a few carpenters, and after a long time, he made a small screw rod and a sleeve. Then, a living Archimedes screw pump model came out. Used to pump water, this stuff is really good.

The most important thing is that the head of the screw pump is large, which can reach 68 meters. In the early days, the vacuum pump driven by the Newcomen steam engine could only pump water to a height of 10 meters at most. Obviously, in mines more than 50 meters deep, that kind of vacuum pump is useless. Only a screw pump with a lift of up to 68 meters has a practical effect.

But the problem is that it is extremely difficult to make a screw rod as long as 50 meters. Even with wooden poles used to carve the spiral, it is difficult to find a 50-meter log. Moreover, the 50-meter-long log is very heavy, and it is difficult to drive it with a steam engine.

Therefore, Marin lowered his requirements and only asked for a screw rod with a length of 20 to 30 meters. In this way, with the relay of two steam engines, the water in the deep well can also be pumped out.

Next, Da Vinci, who had just completed the research and development of the Watt steam engine, nervously invested in the research and development of the Archimedes screw pump.

"I'm really exhausted. I've just finished building a steam engine, and then I'm going to build a pump. By the way, Marin, after you get it out, are you going to promote it in the swamps of East Frisian? This kind of thing? A water pump is much more efficient than a Dutch windmill." Da Vinci asked curiously. He also didn't have much respect for Marin, mainly because he hated Marin for forcibly kidnapping him. Later, disrespect became a habit. However, Marin didn't care. After all, Da Vinci was a great scientist, and he didn't care about it at all. Moreover, this guy is not an official, so he does not need to follow the hierarchy. Because, Marin believes, great scientists are privileged...

"No, Ada, even if you get the steam engine and the water pump out, I don't plan to promote it in East Frisian right now." Marin directly rejected Da Vinci's idea.

"Why?" Da Vinci was a little anxious. As a great scientist, I like that my inventions and creations have been applied in society. In this way, people can also spread his good name.

"Ada, I haven't won the Ruhr area yet. The Ruhr area is a coal production area. If I haven't won the Ruhr area, I will take out the steam engine. Isn't this asking people to raise the price? Besides, I want to buy it in the future. The Ruhr area will also be difficult. Therefore, I will not be able to disclose the existence of the steam engine until I get the coal-producing land in the Ruhr area.”

"Okay, you should go and take down the Ruhr area as soon as possible. I will study my steam engine and water pump first, and see what can be improved..." Then, Da Vinci began to fiddle with the machine, and then I don't care about Marlin...