Chapter 348

In fact, there is not much room for structural improvement. First of all, the tent itself needs to be in contact with the air. In addition, it is a tent made of soft materials. It is impossible to create a vacuum sandwich between the outer cloth and the inner cloth of the tent, or fill some hard high-performance insulation materials to make an insulation layer.

The traditional double-layer design is already a very reasonable structure, even in the Everest and North and south polar scientific research, this double-layer structure tent is enough.

What Chen Xin can do is to add an inflatable heat insulation layer at the bottom of the tent to prevent heat from losing to the ground. At the same time, he can add a small porch with two layers of curtains at the door, so that when someone opens the curtain, it will not let the cold air from the outside directly enter the tent and block the heat loss inside.

For a large tent such as a medical tent, the tent door and floor are the two main channels of heat loss. As long as the heat loss in these two places is blocked, the tent can get better insulation effect.

In addition, it is the improvement of materials.

Because of the cost problem, the material used for this large tent is PVC air tight cloth. As we have said before, the temperature resistance of PVC material is - 40 ℃ ~ 65 ℃. Beyond this range, the properties of the material will be changed and the original performance will be lost.

In small tents, manufacturers can use better performance materials such as PU and PE as the coating of tarpaulin, so that the tents have better protection performance.

However, PU material, that is polyurethane, is the best insulation material in the world at present. The insulation material used by Chen Xin and his friends when they built the refuge was polyurethane coating.

According to different material formulations, this kind of material can withstand - 50 ℃ ~ 150 ℃. Among them, TPEE thermoplastic polyester elastomer, also known as polyester rubber, has excellent performance and can withstand the temperature difference between - 70 ℃ and 200 ℃. It can be said that it is an excellent thermal insulation material now.

If you can, Chen Xin certainly wants to use this kind of material to upgrade the current medical tent. Unfortunately, this kind of high-performance thermal insulation material is also in urgent need for the country. Although there is a lot of production, there is not much stock in the market.

In the face of this situation, Chen Xin can only consider making do with some existing materials.

For the tent reconstruction, the team leader did his best to help Chen Xin find the staff in Linshi to coordinate the materials he needed.

Pu material, a high-performance thermal insulation material, is naturally a good steel for Linshi. It is not likely to be evenly distributed to Chen Xin to improve the tent.

However, the staff can still provide some cold proof felt for Chen Xin.

"Cold proof felt? How much can I get? " Chen Xin heard from the staff that there was only cold proof felt. Although he felt that the material he wanted was far from what he wanted, since there was a shortage of materials, he could only use what he wanted.

Seeing that Chen Xin didn't dislike the cold proof felt, the staff quickly said, "it was used for building greenhouses before the disaster in the city. However, after the meteorite impact, the greenhouses were not built, and a lot of cold proof felt ordered at that time was overstocked. I can have someone get you a batch if you need it. "

"Well, let's make some rolls first, and cover them on the tent for more or less insulation." Chen Xin can only say so at this time.

When the staff went to arrange for the cold proof felt to be delivered, Chen Xin was not idle. He went back to the tent, ready to see what could be improved.

In the tent, five volunteers assigned to him are burning in front of a heater.

They don't have protective clothing like Chen Xin and the members of the rescue team. They only have ordinary cold proof clothes on them. At this time, they are sitting in front of the heater, baking their shoes wet with snow, which makes the tent smell a little bad.

Although Chen Xin was wearing power armor and had an air filtration system, he could not smell it, but he could still imagine what it was like.

This obviously reminds him that in addition to improving the thermal insulation performance, the tent can also improve the heater, so that the heater can provide more heat.

This is obviously Chen Xin's old line of work, and he still has such a useful tool as a universal manipulator, and he can't even upgrade the heating furnace system.

Next to an unused heater to himself, Chen Xin control the power armor, some clumsily sat on the ground.

Although this set of power armor is not as exaggerated as one or two tons in sci-fi works, it still weighs a few hundred jin. Therefore, Chen Xin is not easy to sit in the temporary hospital bed beside him. He is afraid that it will collapse directly and can only sit on the ground.

Fortunately, flexibility was taken into consideration when designing joints at the beginning, so sitting on the ground is not a problem.

The heater was disassembled by the mechanical arm, and the scanning equipment on the mechanical arm was used to scan the heater as a whole. While dismantling the heater, Chen Xin looked at the scanning results projected on the helmet screen and considered how to carry out the transformation.There are four heaters in the tent. Considering the safety, they are all electric heaters, powered by external power supply. As for the power supply, it is the isotope thermoelectric battery on Chen's new car yesterday.

The output power of an isotope thermoelectric battery is more than enough to power several tents.

Therefore, on the premise of not worrying about the power consumption, the simplest and crude way to transform the heater is to directly increase the power. Although it is a very wasteful practice, it has to be said that many times things can be solved in this way.

Considering that the isotope thermoelectric battery can output stable power for ten years, the power amplification of Lida flying brick is actually the simplest choice at present.

Chen Xin chose this way just for a little consideration.

But in this case, we need to optimize the circuit of the heater itself, at least not because the power is too large and burn or short circuit.

Controlling the mechanical arm to continue to dismantle the heater, Chen Xin decided to try this time to complete the transformation of the heater without upgrading the system. Anyway, with such a top-level tool as the universal mechanical arm, Chen Xin doesn't think he can't even handle a heater.

However, after he disassembled the heater into parts, Chen Xin discovered a fact that made him a little embarrassed.

That is, without raw materials, even if he has a universal manipulator that can 3D print parts and do all kinds of machining, Chen Xin still can't complete the transformation of the heater out of thin air.

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