319 Steam Turbines

After solving the problem of the power and accuracy of the artillery, Lin Yuan only faced the problem of speed, no matter how fast the warship was, it could not be faster than the plane, so Lin Yuan was not worried about what threat they could pose to the Beijing ship after mastering the advanced technology.

This time, Lin Yuan did not arrange any display, but called the foreign experts together and held a symposium, Lin Yuan first asked: "How can you make the warship run faster?" ”

An Englishman said: "I think the existing propulsion technology has reached its limit, and there is not much room for improvement, such as the boiler part, the latest water-tube boiler, which has produced a steam pressure of 50 megapascals; We all know that no matter how much we optimize the shape of the water pipe, the flue gas produced by combustion cannot transfer 100% of the heat to the liquid in the water pipe, and if these flue gases are discharged directly from the chimney to the atmosphere, the heat will be wasted, so we have designed a variety of heat exchange measures. ”

"For example, when burning coal, you need to ventilate the combustion furnace, otherwise there will not be enough oxygen during combustion, and if the temperature of the air entering is higher, it will be very helpful to improve the combustion efficiency, so we designed a heat exchange pipe to let the flue gas heat the air."

"There is also the piston part, due to the increase of steam pressure, so the steam after the work is completed once, there is a large amount of residual energy, for this we have designed a number of cylinders to do work, as much as possible to squeeze out all the energy of the steam, after taking these designs, there are not many techniques that can be improved, if there is no major breakthrough in principle, I am afraid that the speed of large warships will be limited to about 20 knots."

A German said: "If we can further reduce the drag of the ship, we can go faster, but we can't solve the fluid dynamics equations accurately, and naturally we can't accurately design the streamline shape of the ship......

The people talked about it, but it was difficult to translate them, because they didn't know the terms very well, so it was so difficult to translate them, so that although they had been discussing it all morning, they didn't discuss many opinions.

Although Lin Yuan asked questions, he did not express any opinions, and it was only during the lunch break that he quietly came to the Englishman's room.

Lin Yuan found the Englishman who spoke first in the morning, and said with a smile: "I don't know if you have ever thought that the existing steam engine work is intermittent, the steam must be condensed after doing work once, and wait for the piston to return to its original position, and the next batch of high-pressure steam can only be used for the next work after entering the cylinder, so that the speed will definitely not be able to go up, if we can find a way to let the steam work continuously, even if it is a large warship, the speed can reach a very high level." ”

The British asked: "Let the steam do the work continuously?" What to do? ”

Lin Yuan picked up a piece of paper, drew a few strokes on it, brought it to the British, and said, "Look at this, won't you be able to do work continuously?" ”

The Englishman took the piece of paper, looked at the picture on it, his eyes widened in surprise, and said, "How did you come up with this structure?" It's so ingenious. ”

It turned out that Lin Yuan's picture drew a long axis, and a circle was set on the shaft, and the blades were drawn on the circle, Lin Yuan said: "The high-pressure steam is no longer to push the piston to do linear motion, but to push the blades to do rotational motion, and the rotation of the blades also drives the rotation of the shaft, and the back of this shaft can be directly connected to the propeller as a power propulsion system." ”

The Englishman said: "This does increase the speed, but I wonder what shape this blade should be made of?" ”

Lin Yuan smiled: "Do you know the propeller of the Dao warship?" Water vapor and water are both fluids, they have similarities in mechanical properties, and you can refer to the blade shape of the propeller to process this blade. ”

The Englishman folded the paper, lowered his voice and said, "I hope you don't tell anyone about this." ”

Lin Yuan pretended to be embarrassed and said, "This is not good. ”

The Englishman took out his cheque and said, "I will pay 100,000 pounds, and I hope you will not tell anyone about it." ”

Lin Yuan pretended to be elated and said with a smile: "Okay, I won't tell anyone else." ”

Of course, Lin Yuan will not keep any promises to them, as soon as he goes out, he will tell the experts of the other three countries about this matter, and the experts of the other three countries are also the same way of thinking as the British, they saw that Lin Yuan repeatedly extorted money, so they thought that Lin Yuan was a good man who saw money, and they paid heavy bribes.

What Lin Yuan said is the steam turbine technology, which was widely used in warships at the beginning of the 20th century, and quickly replaced the piston steam engine technology that had been used all the time, and the dreadnought with this steam turbine technology had a displacement of up to 17,000 tons and a speed of 21 knots, which made all kinds of battleships under development in various countries directly obsolete, and opened the era of dreadnoughts.

At this point, Lin Yuan revealed the three key techniques, armor-piercing bullets, gyroscope stabilization, and steam turbines to experts in four countries through various forms, and the display was only dispensable, and the next few days completely became brainwashing time for foreign experts.

The foreign experts also felt that they had gained a lot, and when they returned to China satisfied, Shen Wanqing asked: "Aren't you going to lead them to the road of big ships and huge guns?" But I see that the technique you revealed to them seems to be more appropriate to say 'fast ship quasi-gun'. ”

Lin Yuan said: "In fact, the 'fast ship quasi-gun' and the 'big ship giant cannon' have similarities in the core, if the warship wants to increase the speed, it is necessary to install a powerful engine, such an engine is not small in volume and mass, so the fast ship often represents the big ship; if the cannonball wants to hit accurately, the initial velocity must be high, so that the influence of the direction finding wind will be small, if you want to increase the initial velocity, the most direct way is to increase the number of propellants, so it is a giant cannon." ”

Shen Wanqing seemed to understand and asked, "Then what are we going to do next?" ”

Lin Yuan replied: "Now that the Governor of the Northeast has also got it, we can develop on a large scale in the Northeast." ”

Lin Yuan in the Benxi and Fushun area of Fengtian, carved out the iron and steel industrial zone, the reason why Benxi and Fushun were selected, is to fancy the iron ore and coal mines in these two locations, today's Ryukyu, lack of various ores, want to improve the quality of steel, must add a certain amount of alloying elements to the steel, so must leave the Ryukyus, find a place rich in resources to develop.

In the previous stage of the production process, the Ryukyus were mainly engaged in the production of industrial equipment, including larger-capacity blast furnaces, chemical reaction vessels, etc., which were loaded onto ships and transported to the port of Yingkou as soon as the foreign experts left, where Lin Yuan ordered the construction of roads and railways to transport the equipment to the iron and steel industrial area.

Since there is no shipyard of its own, the ships used to transport equipment are still the merchant ships of Taiwanese merchants, and the merchant ships have broken the wind all the way, docked at Yingkou Port, near the port, several steam cars are waiting, these big guys powered by steam engines, although they are very bulky, but the carrying capacity is very large, just to transport huge mass items.

A new era is about to begin.