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The first department to make a breakthrough was the mechanical group, and the two heads of Xiao Lang and Qin Shiqing proudly showed everyone their latest progress, which shocked everyone solidly.

It was a preliminary design of a reciprocating piston steam engine, and even a small model was made.

In the mechanical specialization, the principles of the steam engine belong to the basic course content. As long as you are studying mechanical theory, it is impossible not to study the drawing structure in this area when you were a student. Xiao Lang remembers that when he was in college, he had specially drawn a full view of the spare parts of the Watt steam engine, of course, the specific content had long been forgotten, but the basic principles and general structure and other key contents were still a little impressive.

A rough impression is sufficient, and the greatest advantage of a traverser over those pioneers in history who trekked through the fog of the unknown is that they know the direction of history - not only the history of humanities, but also the history of the development of science and technology. They know which constructions will be proven successful and which ones will not.

They don't need to try again and again, fail again and again, they just need to follow the path of success taken by their predecessors and go straight to pick the most ripe fruit. =3q Chinese==――

The model of the steam engine designed by Xiao Lang was much more advanced than the historical Watt's one, and directly used the more mature double-acting structure, which was the most commonly used drive type on later train ships.

When he poured boiling water into the small model and heated it to a boil with crushed coal powder, everyone was pleasantly surprised to see that the small steam engine really made a "woo" sound, while snorting white steam, while pushing two parallel iron wheels to rotate in a cycle, like the roulette wheel of a train.

"Not bad...... The lads are really good......"

Old Professor Li smiled and leaned his face over to take a closer look, but was immediately pulled by Qin Shiqing:

"Be careful, even though it's just a model. The steam is still very hot, and it will burn people. ”

"Now that we have a model, it won't take long to make a real thing, right?"

Wang Ruobin asked excitedly, he had already begun to imagine building steam-powered ships...... However, Xiao Lang directly poured cold water on him:

"I'm afraid not, it's still very early - although there are no barriers in terms of technical design, we can't keep up with the process and materials. \\\Aishang Novel Network.net\\\"

Tapping a few points from afar on the small steam engine that was still purring and working, Xiao Lang began to explain:

"For example, it's a very important cylinder, and I use a whole piece of brass to get it out of the car directly on the electric bed. But the real thing is a big one. It must be cast in one piece in a steel plant, and the material must be carbon steel that is resistant to high temperature and high pressure. Others such as valves, gears, blades...... and so on, all of which need to be done very finely in order to be assembled. Machining the model with an electric machine bed can guarantee accuracy. But if you change it to a casting ......"

As he spoke, he looked at the members of the steel group next to him, and Engineer Huang Jiancheng, who was in charge of the steel team, smiled bitterly and shook his head:

"Unfortunately, our metal casting process may not be able to meet such high requirements."

Xiao Lang obviously guessed that this was the answer, and he was not disappointed, but shrugged his shoulders and continued:

"In addition, the sealing problem is also very important, special rubber that can withstand high temperature and high pressure is not expected, but without a similar sealing filler, it will not take long for our machine to leak everywhere. ^^yd Chinese^^ greatly reduces work efficiency and can no longer maintain normal operation......"

As soon as he said this, he heard a series of strange rattling sounds from the model. Then white steam spewed out from all the joints, and the room was filled with white smoke for a while, mixed with an unpleasant smell, which made everyone cough again and again.

It's no wonder that the mechanical group had stopped everyone from a distance before, and they didn't allow everyone to come closer, and it seemed that they had known about this outcome.

"Well, like this...... Fortunately, this is only a model, and the amount of steam leaking is not large. However, if this kind of malfunction occurs in real objects, all the nearby operators will be steamed. ”

It wasn't until the water tank leaked and the boiler was extinguished, and the machine automatically turned off the fire, that Xiao Lang walked over to clean up the mess, empty the water tank, and then dismantled the small model and showed everyone its internal structure.

"So, brethren. In the short term. Let's just look at this model. However, since the route is known. As long as you go patiently, you will eventually get results. Aishang Novel Network .com**"

"How long will it take?"

The others naturally asked, and the two leaders of the mechanical group glanced at each other, very cunning, and spread their hands at the same time:

"It depends on the overall level of our industry......"

Such an answer is obviously not satisfactory to everyone - the industrial group itself represents the highest industrial level of this group of people, and everyone who can fiddle with the machine is incorporated into this department. All machine tools, motors and lamps are also given priority to meet them, and it is really not good to push them like this.

Noticing the gazes of his companions around him, Xiao Lang had no choice but to add something realistic:

"It will take about half a year to a year, we will simplify the design a little more, and make some progress in the process materials, and put it together in two clicks, it is estimated that it will be about the same......"

After the mechanical group, within a few days, the chemical team also stood up to offer treasures, claiming that they could solve the problem of fuel shortage on the Qionghai.

When all the members of the committee had gathered on the territory of the chemistry group, Li Jingcheng and Wu Kun triumphantly took out two things and placed them in front of everyone: a gray and inconspicuous stone, and a small branch that did not look amazing. **3 Chinese Aishang Novel Network .com***

"What the hell?"

Most people don't know it, but the rehmannia was built to recognize the stone specimen:

"It's oil shale, and the oil shale resources on Hainan Island are quite rich, but the oil content is not too high...... Can we fractionate crude oil from oil shale? Lao Huang's question made Li Jingcheng very unhappy, although he likes to tinker with explosives in his spare time, but after all, his job is in an oil refinery, and he is still familiar with petrochemicals.

They didn't make any models, but directly brought a full set of processing equipment -- just a few pot-bellied ceramic jars, a bunch of conduits rolled out of tinplate, plus some brackets, etc., and set up the frame in the yard on the spot, and made it for everyone to see.

The oil shale crushed into fine particles is placed in a ceramic jar, the mouth of the jar is plugged with a plug with an air duct, sealed with wet mud, and the clay pot is heated while the tank is rotated constantly, as if it were popcorn.

As a result, the gas is quickly discharged from the air duct and cooled in the collection tank at different temperatures one by one, turning into a less clear oily substance.

Li Jingcheng said that they were supposed to fractionate four liquids, but because the materials and tools were so rudimentary, they could only get two kinds of mixed oil. One is heavy diesel oil with a relatively high ignition point, which can be used as fuel for ships; The other is between light diesel and gasoline, which should be able to drive motorcycles or motorboats, but it really can't, and it is certainly fine to use it as an incendiary bomb.

The residue left in the tank at the end is similar to asphalt, and asphalt hemp wire is an excellent material for repairing roofs or repairing leaks in shipbuilding, and if the amount is large, it can also be used to pave roads, and it is also very versatile.

The biggest drawback of this kind of local oil refining method is that it pollutes the environment -- Li Jingcheng and Wu Kun have already made half of the industrial zone base smell to the sky just by giving an example, and people are constantly rushing to the door to protest.

In this context, the Chemistry Group introduced the Committee to another environmentally friendly alternative, the small twig of Prunus oil.

A light brown oily liquid will be secreted from the essence of the oil nan, the smell is fragrant, the color is similar to kerosene, Wu Kun dipped some cotton and lit it for everyone to see: just put it on the side of the flame, it will "boom" and burst into flames, and its combustion performance is similar to that of diesel.

The local people often collect wood oil from Nan Yau to light lamps, and they directly call this tree "lamp oil tree". It is said that there is a forest near Lingao County, and there is a large number of wild oil nannan growing in it.

Regarding the extraction of oil, there are two methods, one is to drill holes in the trunk, about five centimeters or so, insert a hollow bamboo tube, put a bucket below to undertake, a big tree can flow out seven or eight catties of oil once collected, but it takes a long time to collect the next one after a collection, otherwise the tree will wither, a big oil tree can collect fifty to one hundred kilograms of oil a year.

The other is to cut down the tree directly, and the oil will seep out from the heart of the tree, and you can collect twenty or thirty catties at a time. Of course, this method is not sustainable and is not built to use.

Using this natural diesel is environmentally friendly, but it also has its drawback - the amount is too small. A mature tree can only provide less than 100 kilograms a year, and no matter how many wild oil nans around Lingao City are, at best, they are only a few hundred trees, only a dozen or twenty tons a year, enough for the Qionghai to sail several times?

Some people also thought about whether it could be planted artificially, but according to Wu Nanhai's recollection, it would take at least four or five years for this kind of oil nan tree to become a mature tree, and even if it is planted immediately, it will take four years to become a forest.

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