Chapter 316 - The steam turbine is also to be launched
"Okay, when I buy the boat, I'll have them retrofit it with ramming." After listening to this, Ning Fan nodded and agreed.
"The second is to convert the diesel engines of these cargo ships into coal-burning steam turbines."
"Steam turbines?!" At this moment, Ning Fan scratched his head, how could Lao Huang think of such an ancient equipment.
Because a steam turbine is a reciprocating power machine that converts the energy of steam into mechanical work. It appeared during the Industrial Revolution of the 18th century. Until the beginning of the 20th century, it remained the most important prime mover in the world, and then gradually gave way to internal combustion engines and steam turbines.
The simple steam engine is mainly composed of cylinder, base, piston, crank connecting rod mechanism, slide valve distribution mechanism, speed regulating mechanism and flywheel, etc., and the cylinder and base are static parts. The new steam from the boiler enters the spool chamber through the main steam valve and the throttle valve, and is controlled by the spool valve to enter the left or right side of the cylinder alternately, pushing the piston to move.
At the beginning of the 20th century, the development of the steam engine reached its peak. It has the advantages of constant torque, variable speed, reversibility, reliable operation, convenient manufacturing and maintenance, so it has been widely used in various fields such as power stations, factories, locomotives and ships, especially on warships, and has become the only prime mover at that time.
However, the steam engine has many weaknesses, one is that it cannot do without the boiler, and the whole device is bulky and bulky. Second, the pressure and temperature of the new steam should not be too high, the exhaust pressure should not be too low, and the thermal efficiency should not be improved. The third is that it is a reciprocating machine, the inertial force limits the increase of speed, the working process is discontinuous, and the flow of steam is limited, which also limits the increase of power.
Therefore, Ning Fan was very surprised when he heard that Huangshi wanted to convert the diesel engine with high thermal efficiency, compact structure and strong maneuverability on board into a coal-fired steam turbine with large volume, high energy consumption and high pollution.
So he said, "It's not easy to change this way, and where else will there be any factories that will produce this kind of steam turbine now, probably producing diesel or heavy oil internal combustion engines, after all, steam turbines are too backward." ”
Huangshi actually knows this, because although China is a big coal-producing country, but now in addition to the steam turbine for power generation is still burning coal, other engines have been changed to fuel-burning internal combustion engines, like the original marine power engine power is mostly coal-burning decades ago, but due to the inconvenience of imperial grain transportation and operation, it was gradually changed to fuel oil.
"I know that the steam engine is very backward, not only is the thermal efficiency not high, but it is stupid and stupid, but it has a good place, that is, it burns coal."
Ning Fan glanced at Huangshi, and said in his heart, isn't this nonsense, "Old Huang, if the steam engine doesn't burn coal, does it still burn wood?" ”
"Hehe, of course there is, there is a pot camel machine, which can burn all kinds of miscellaneous materials, not to mention wood, even wheat orange stalks and straw can also be burned."
"Pot camel machine." Ning Fan read these three words, and remembered that he seemed to have seen a charcoal-burning car when he was a child, and it was probably a pot camel machine. At that time, his family lived next to the county bus station, and he often went to see if the car was burning charcoal or oil. A vaporizer cylinder is installed on the charcoal-burning car, and after the charcoal is installed in it, the fire is lit before leaving the car, and then the air is blown with a hand-cranked blower, and the boiler can only be left after it is boiled.
However, this kind of charcoal car is a headache to walk on the mountain road, because the gas consumption on the mountain road is large, and it is necessary to stop after walking a little way, and then wait for a while with a hand blower, and then continue to move forward when the gas comes up, so at that time, even if it is a short distance, the driver of the car must be equipped with an assistant.
In addition to this charcoal-burning car, he has also seen those rollers used to repair roads, and it seems that they are also used in large quantities. I still vaguely remember that the pot camel machine was common in the countryside in the early years, and the road roller used a lot of pot camel machine in the early years.
And when I was a child, I heard that this equipment was to be promoted, and there seemed to be a two-wheel double-share plough or something, which was considered an advanced agricultural machinery at that time, but then it was no longer promoted, and it may not be very practical.
"yes, pot camel machine." Huangshi is not like Ning Fan who lived in the town since he was a child, but stayed in a small mountain village, and went to the city when he was older, so he knew the term pot camel machine, or thanks to "Lingao Qiming", the introduction of the pot camel machine in this book broke his common sense that the steam engine could only burn coal.
However, after arriving in Taiwan, you can buy a few sets of pot camel machine as temporary power generation equipment, read the book said that there is a single bile fire tube horizontal re-expansion condensing gas pot camel machine made in the Czech Republic, the flywheel speed is up to 1000 rpm, the maximum power is 500 horsepower, and it is used to drive the generator to generate more than 300 degrees per hour.
Moreover, in addition to driving the generator and providing electricity, the pot camel machine can provide electricity; It can also be matched with water pumps and water wheels for irrigation and drainage; And it can directly drive all kinds of work machinery in threshing, rice milling, oil extraction, sawmilling, food processing and machinery manufacturing.
At the same time, because it can be fueled with coal, firewood, etc., it is easy to operate, install and maintain, reliable to work, simple to manufacture and low in cost. Therefore, it is especially suitable for use in Taiwan, which has not yet been developed.
Ning Fan laughed, "Lao Huang, I just remembered that I had seen that kind of machine when I was a child. ”
"That's right, I heard that there were a lot of them in the countryside, but now they are all gone, but now they are also sold on Taobao, but its efficiency is too low, I heard that it is only 10%, and the thermal efficiency of coal-fired steam turbines can reach up to 70%." The efficiency of the pot camel engine was too low, which is why Yellowstone ultimately chose not to use it when modifying the power of the ship, and instead adopted a coal-fired steam turbine.
"Okay, I'll look online to see if there is a coal-burning steam engine."
Huang Shi nodded, "There will definitely be, but if not, you can also go to the equipment factory to customize." And in the future, we will also open an equipment factory to produce this kind of steam engine. ”
"Are we going to produce this ourselves?" Ning Fan had some doubts, feeling that this was obviously an extra move.
"Of course, I told you earlier that we can't have only one or two ships, but hundreds of them."
"Thousands, hundreds, Lao Huang, you are wrong, if a boat is 3 million as you just said, we can't buy a few of them together!"
"Hehe, Lao Ning, in the future, those boats will not be bought by us, but will also be built by ourselves."
Lao Huang said this, Ning Fan couldn't understand it anymore, this artillery had to be cast by himself, and the steam turbine had to be produced by himself, and now even these ships had to be built by himself, "Lao Huang, how is this possible, shipbuilding is not as simple as you think!" ”
"Of course I know, it's not that simple. But Lao Ning, you may have misunderstood. Huang Shi replied with a determined expression.
"Did I misunderstand?" Ning Fanxin said, isn't this what you said clearly just now.
Huang Shi explained, "That's right, we will have to build these three things ourselves in the future, but the order and place of making them are different. ”
"For example, this artillery, we want to cast it into a rifled cannon, but this rifled gun uses solid shells, flowering shells, and the propellant is separated, not the kind of integrated ammunition. However, you'd better have someone develop a rear-loading ammunition and a gun that doesn't ignite with an open flame. ”
"Hmm." Ning Fan didn't object, after all, the ideas are all good, whether he can do it or not, he has to ask in detail, now he just needs to write down Lao Huang's request.
"This kind of artillery, at the beginning you have to find a foundry to cast for me, as for the reason, you can find one yourself, remember that you can't use pure steel, because the bore pressure of the gun is too large, although the steel is harder than copper, but it is too brittle and easy to explode, so at least you need steel alloy, about other technical parameters, you can find some experts to ask for advice."
Ning Fan nodded, remembering it in his heart, "Hmm".
Huang Shi continued, "After success, we will go and test the artillery, and if it proves that the artillery can indeed be used, then we will have to buy a small foundry to cast these cannons, and at that time there will be not one or two, but dozens, hundreds." ”
He saw that Ning Fan seemed to have something to say, but he didn't give him a chance to speak, and then said, "When I have a firm foothold in this time and space, a larger territory, and more abundant manpower, we will have to relocate that factory as a whole." ”
Ning Fan finally found the gap between Lao Huang's speech, interjected, and asked him, "Wait, Lao Huang, you said that you want to relocate the factory to the Ming Dynasty as a whole?" ”
"Of course, we have to move. You think, first of all, the labor in this era is cheap, if there is no salary of four or five thousand in a modern factory, who will do it, and here it only needs one or two thousand income. Second, if I build so many barrels in modern times, although we can make up some reasons, if there are too many of them, it will always arouse suspicion. Thirdly, there are also some industrial enterprises in this era, so it is the best way to relocate the factories that we have operated ourselves. ”
"Good. I understand. ”
"After talking about artillery, let's talk about the steam turbine, although its technical level will be a little higher, but it will also follow this process."
"Lao Huang, then how do you solve these materials, such as steel, alloys, gunpowder, especially some sealing materials used in steam turbines, such as rubber and other things."
"Some materials, if we can solve them in this era, we will use them in this era, and some of them can not be solved, of course, we can only 'import' from modern society, but my vision is to realize the localization of production materials step by step."
"Actually, Lao Ning, don't you think this is also a way to establish an industrial system, that is, to promote our industrialization by business needs."