Everyone was stunned, Qiu Xian's eyes lit up, and he asked, "Are you talking about lossless pipeline transmission technology?" This kind of technology installs a device at the power generation end - electron accelerator, which can accelerate the current in the form of electrons to the power end, and then install an electronic reducer at the power end, and then convert the electron flow into current. ”

Lin Yuan asked, "Has this technique already appeared?" ”

Qiu Xian said: "Our country is developing, but in a state of top secret, since we have reached this era, there is nothing to hide, although this kind of technology saves electricity, but the technology is extremely difficult, especially the accelerator and reducer technology, the need for high-precision control technology, with the level of technology in the era in which we live, I dare not dream of it." ”

Lin Yuan said: "Actually, we don't need such cutting-edge techniques, there is a gas called sulfur hexafluoride, I don't know if you have heard of it?" ”

Liu Jinqiu said: "I have heard of this gas, this gas is very interesting, it does not have any toxic effect on the human body, so people can inhale some, after inhaling, the voice will become extremely low, as if it is a different person." ”

Lin Yuan said: "This is indeed a property of this gas, and this gas has a more important property, that is, insulation. ”

Lin Yuan continued: "There are a lot of electrical equipment on the Beijing ship that have to operate under high voltage, and these equipment use a gas insulated protection switch, and the gas in it is this sulfur hexafluoride. ”

Qiu Xian said: "I was reminded by you, I also remembered that there is indeed this kind of gas insulated cable, the insulation performance of this cable is excellent, and the structure is simpler than that of conventional cables, and there is no need for automatic oil-filled structure, its structure is like this, the middle is a wire, the outside of the wire is equipped with insulating supports, and a layer of metal thin-walled pipes is installed outside the support, and the gas is in this layer of pipes, and the outermost layer is a steel pipe, which is used to improve strength and protect the internal structure. ”

Lin Yuan said: "That's right, that's it, we have all kinds of materials that need to be used for this kind of cable, the wire is naturally needless to say, the insulation support can be made of ceramic, the metal pipe outside can also be manufactured, and welding is not a problem." ”

Qiu Xian said: "Okay, we then calculate the relevant parameters and manufacture this cable as soon as possible." ”

Lin Yuan said: "We can use the backup on the Beijing ship for the transformer, and we will discuss the generator now." Qiu Xian said: "From the perspective of energy, the sources of electrical energy can be mainly divided into the following two types: one is the potential energy of water, which allows water to flow down from a high place, drives the turbine to rotate, and generates electricity, and hydropower stations are the energy used; There is also chemical energy, which is chemical fuel, and the equipment to achieve the conversion is the thermal power generator, which produces high-temperature steam through chemical combustion, and the steam drives the steam turbine to rotate to generate electricity. ”

"There are also some new concepts of power generation, such as nuclear power, tidal power, wind power, solar power and so on, because they are not applicable to us now, so I will not go into details."

Lin Yuan said: "I think hydropower is not suitable for us, if you want to build a hydropower station, you must first have a suitable river, there are indeed many rivers in the vicinity, and there are many potential to build power stations, but the construction of hydropower stations must build dams, and use the dam to hold back water to raise the water level upstream, so that the potential energy of the water flow will become larger, and we now, we do not have such a large engineering construction capacity, so it is difficult to build the dam successfully." ”

Qiu Xian said: "Then we will use chemical energy to generate electricity, as for chemical fuels, now our coal mines are already mining, so there is a lot of fuel, but ......."

Lin Yuan asked, "What are the difficulties?" ”

Qiu Xian said: "The principle of the generator is Faraday's law of electromagnetic induction, which allows the conductor to cut the magnetic inductance line to generate an induced current on the conductor, which puts forward higher requirements for the electromagnetic performance of the conductor. In our time, the rotor of power generation equipment uses silicon steel with good electromagnetic properties, and when we design generators, the grade and performance of silicon steel are listed in the design manual, and we will not consider how silicon steel is smelted, so we want to know, do we have such silicon steel? ”

Liu Jinqiu said: "We can't make silicon steel with excellent electromagnetic properties now, so you can temporarily use low-carbon steel instead." ”

"In this case, the efficiency of power generation may be very low," Qiu said. ”

Lin Yuan said: "It doesn't matter if the efficiency is low, the most important thing for us is to send out the electricity first, and then the electric arc furnace can smelt high-performance materials, and at that time we are gradually improving the equipment and improving efficiency." ”

Qiu Xian said: "The rotor of the generator needs equipment to drive, in our time, there are two kinds of equipment, one is the steam turbine, the use of high-pressure water vapor to promote the rotation of the impeller, but the thermal efficiency of the steam turbine is relatively low, so it has a tendency to be replaced by another equipment, that is, the gas turbine, the gas turbine is directly driven by high-temperature air, eliminating the process of heating water, so the thermal efficiency is higher, I think we still build a gas turbine better." ”

Lin Yuan said: "The construction of gas turbines is very difficult, first of all, the shape of the blades is not easy to process, as well as the material of the blades, the speed of the gas turbine is very high, may reach tens of thousands of revolutions per minute, which will produce a huge centrifugal force, if the tensile strength of the material is not high, in layman's terms: it will be thrown off directly!" Therefore, it is more appropriate for us to choose a steam turbine. ”

Liu Jinqiu said: "Although the construction of gas turbines is difficult, but the construction of steam turbines is not low, first of all, the amount and pressure of water vapor produced by the boilers, the boilers we are building ourselves now, subject to the performance of steel, the pressure of steam can not be too high, otherwise the internal pipes may be damaged, and reducing the pressure of steam will not be able to promote the effective power generation of steam turbines." ”

"There is the problem of the steam turbine itself, although the rotation speed of the steam turbine is slower than that of the gas turbine, but the impact of water vapor on it is great, which puts forward high requirements for the strength of the steam turbine blades. There is also the problem of bearings, the volume and weight of steam turbines are generally far more than gas turbines, so large weight, but also rapid rotation, there must be advanced bearings, but we don't even have bearing alloys now. ”

Qiu Xian also said: "Yes, the electromagnetic performance of our low-carbon steel is not good, and if the performance of the steam turbine can't keep up, it will not be able to generate electricity at all." ”

It seemed that it was another technical difficulty, everyone was silent again, and Lin Yuan suddenly said: "I have thought of a way, we can use the plane to generate electricity!" ”

Everyone was stunned when they heard this, and Qiu Xian asked, "What did you say?" What is generating electricity from an airplane? Without waiting for Lin Yuan to answer, Qiu Xian nodded and said, "I figured it out." ”