There are actually not many areas that can be modified in structural improvements. First of all, the tent itself needs to come into contact with the air. In addition, this is a tent made of soft material. It is impossible to create a vacuum interlayer between the outer cloth and the inner cloth of the tent, or fill it with some hard high-performance insulation materials to make a thermal insulation layer.

The traditional double-layer design is already a very reasonable structure. Even in Mount Everest and the Arctic and Antarctic scientific research, this double-layer tent is enough.

What Chen Xin could do was add an inflatable insulation layer at the bottom of the tent to isolate the heat to the ground, and add a small porch with two layers of door curtains at the door, so that when someone opened the door curtain, the cold air from the outside would not directly enter the tent and block the heat loss inside.

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

In addition, it is the improvement in the material.

Due to cost issues, the material used in this large tent is PVC airtight. The PVC material has been said before that its resistant temperature is -40℃~65℃. If it exceeds this range, the properties of the material will change and lose its original properties.

In small tents, manufacturers can use better performance materials such as PU and PE as the coating of tarpaulin to give the tent better protection performance.

However, the PU material, that is, polyurethane, is currently the best thermal insulation material in the world. The insulation material used by Chen Xin and his friends in the survival group when they built the shelter was polyurethane coating.

Depending on the material formula, this material can obtain materials that can withstand -50℃~150℃. Among them, TPEE thermoplastic polyester elastomer, also called polyester rubber, has excellent performance and can withstand temperature differences between -70℃~200℃. It can be said to be an excellent insulation material now.

If possible, Chen Xin certainly wanted to use this material to upgrade his current medical tent. It was a pity that this high-performance insulation material is also an urgently needed shortage of materials for the country. Although it has a lot of output, Linshi does not have much inventory.

Faced with this situation, Chen Xin could only consider getting some existing materials to make do with it first.

The captain was very dedicated to the tent renovation and helped Chen Xin find the staff in Lin City to coordinate the materials he needed.

PU material, a high-performance insulation material, is naturally good for Linshi to use on the blade, and it is unlikely that it will be evenly used for Chen Xin to improve the tent.

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

"Frigid felt? This is a good fit. How much can I get for me?" Chen Xin heard the staff say that there is only cold felt. Although he felt that it was far from the materials he wanted, since the supplies were short, he could only use whatever he could use.

Seeing that Chen Xin did not dislike the cold-proof felt, the staff hurriedly said: "This was used to build a greenhouse before the city disaster. However, after a meteorite impact, there was no greenhouse. Many cold-proof felts ordered at that time were accumulated. If you need them, I can get a batch for you."

"Okay, let's get a few rolls first. It can be used to keep the heat insulating effect on the tent." Chen Xin could only say this at this time.

When the staff were going to arrange for someone to deliver the cold-proof felt, Chen Xin was not idle either. He returned to the already-built tent, preparing to see what else could be improved.

In the tent, five volunteers assigned to him were gathering in front of a stove and baking on fire.

They did not have protective clothing like Chen Xin and the members of the rescue team, and they only had ordinary cold-proof clothes on them. They were sitting in front of the stove, baking their shoes that were wet with snow, which inevitably made the tent smell a little bad.

Although Chen Xin was wearing power armor and had an air filtration system that couldn't smell it, he could still imagine what it smelled.

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

This is obviously Chen Xin’s old profession, and he now has easy-to-use tools like universal robotic arms, so he doesn’t even need system upgrades to transform the furnace.

Taking an unused stove next to him to him, Chen Xin sat on the ground a little clumsyly, controlling the power armor.

Although this set of power armor is not as exaggerated as one or two tons in science fiction works, it is still available for hundreds of pounds, so Chen Xin is not good at sitting on the temporary hospital bed next to him, for fear of collapse, so he can only sit on the ground.

Fortunately, when designing joints, I took into account the issue of flexibility, and sitting on the ground was not a problem.

He used a robotic arm to disassemble the stove and used the scanning equipment on the robotic arm to scan the stove as a whole. While disassembling the stove, Chen Xin looked at the scanning results projected on the screen of the helmet and considered how to transform it.

There are four heating furnaces in the tent. Considering safety issues, they are all electric heating furnaces, which rely on external power supplies. As for the power supply, it is the isotope temperature difference battery on Chen Xin's car yesterday.

With the output power of an isotope temperature difference battery, it is more than enough to supply electricity to several tents.

Therefore, without worrying about electricity consumption, the simplest and most rude way to transform the furnace is to directly increase the power. Although the power is a wasteful method, it has to be said that things can be solved in this way in many cases.

Considering that isotope temperature difference batteries can output at a stable power for ten years, the amplified power of Lidafei bricks is actually the easiest choice at the moment.

Chen Xin chose this method just after a little consideration.

However, in this case, it is necessary to optimize the circuit of the furnace itself, at least it will not burn or short circuit due to too much power.

Controlling the robotic arm to continue dismantling the furnace, Chen Xin decided to try to complete the transformation of the furnace without a system upgrade. At least he has a top-notch tool like a universal robotic arm, and Chen Xin doesn't think he can't even handle a furnace.

However, when he dismantled the stove into parts on the floor, Chen Xin discovered a fact that made him a little embarrassed.

That is, if there is no raw material, even if he has universal robotic arms that can 3D print parts and achieve various mechanical processing, Chen Xin still cannot complete the transformation of the furnace out of thin air.
Chapter completed!