My Black Tech Shelter

On the morning of May 27, Lu Chen got up and washed while thinking about what he could do today.

"First of all, the building materials for the shelter are gone. It will take another month for the vegetables to mature, so I have to go out to look for things like sand, gravel, and cement.

This city has been vigorously developing and building in recent years, and the government is also collecting these materials. After these few days, I think they have been collected. I can go and see if there are any fish that have slipped through the net.

And I have to start researching high-energy batteries early, and go out to collect materials. If there is only a pickup truck, it may not be enough. I have to make an external carriage to carry the materials.

And the crane arm prepared before can also be made and installed. There is also a mechanical skeleton main device, oh, and a small cart, and a lot of things need to be prepared,"

Then Lu Chen looked at the time. As of ten o'clock in the morning, the nano core had accumulated 350 energy points.

Lu Chen used 100 points and 200kg of steel and 10kg of rubber to make a tractor carriage, but it was four wheels, and the load was estimated to be about 3 tons.

Then he took out 50 points of energy to directly form a crane in the rear compartment of the pickup truck, and then according to the previous design, he spent 100 points of energy to make the exoskeleton mechanical assist device using the nano core. Finally, he put the shelter's folding cart in the compartment, took a barrel of oil (20 liters) and set off.

The streets of Tingcheng were deserted, and there was still a faint black smoke in the distance. It was the result of the meteorite impact.

Lu Chen's shelter was located between the southern city and the town below. In addition, there were no vehicles on the road.

So it took Lu Chen 20 minutes to get to the southern city. There was a big pit not far away, and the surrounding communities were knocked down by the meteorite impact.

Lu Chen also saw that several buildings on the side had collapsed next to the buildings next to them, and some vehicles parked on the street were damaged. At this time, the meteorite in the big pit had been removed by the authorities, leaving only a big pit.

Lu Chen looked at the big pit and found that the surrounding roads had been destroyed. He had to take a detour. However, thanks to the development of the southern city in recent years, the roads were built in all directions, and the detour had no effect.

Lu Chen found a community under construction nearby. There was no one in it. Lu Chen drove into the construction site and found that most of the equipment and materials on the construction site had been removed, leaving only some unfinished buildings.

After Lu Chen parked the car, he searched the surrounding open space for a while and found two bags of cement, some steel bars, and some sand and gravel, but not much, only some residues on the ground. Lu Chen shoveled them up with a shovel and found a bag to put them in.

After Lu Chen put these things in the car, he searched in a building next to it. After more than an hour of searching,

he found 5 bags of cement piled in the corner of the building, but not many steel bars, nor sand and gravel. After putting these in the car, Lu Chen felt that this efficiency was too slow and he had to think of a good way.

Lu Chen got in the car and walked around the construction site first. He found that the community behind had been built and it seemed that some residents were also decorating. Lu Chen felt that there should be gains here.

Then Lu Chen parked the car downstairs of a building and went upstairs to take a look. After searching one floor after another, Lu Chen found that there were ten households in this building who were renovating, and the doors were all open.

Then Lu Chen went in and found that almost every household had materials such as sand, stone and cement, but the sand was piled together. Lu Chen found the remaining cement bags and packed them up.

Finally, after nearly two hours of busy work, the building materials of this building were finally moved to the car.

Lu Chen counted and found that there was nearly one ton of sand, about 500kg of cement, and only a few steel bars found in the open space before.

Lu Chen thought about it and found that what he needed was not steel bars but steel, so Lu Chen threw away the steel bars directly and drove to the steel plant. After all, there was still a lot of steel there.

Lu Chen found a steel company based on the map and found that the door was open. It should have been collected by the official. Lu Chen drove in and tried his luck.

After entering, Lu Chen found that there was also a small construction site at the innermost of the steel plant, but the equipment inside was also dismantled.

Lu Chen came to the workshop and found that the workshop was empty. All the equipment inside had been transported away. As for where it was transported, Lu Chen knew without guessing that it was transported to the official shelter.

After all, even if you enter the shelter, you can't just wait for the disaster to pass. You must still produce, otherwise many materials will not be enough for everyone.

The steel plant's factory building is still very large. Lu Chen came inside and found a pile of scattered iron ingots. It is estimated that they saw that they were scattered and didn't care about it.

Lu Chen thought it was a good bargain for me. Then Lu Chen drove the car in and put the iron ingots in. It was estimated that there were 500kg. Then Lu Chen found another workshop, but there was no harvest in this workshop.

Afterwards, Lu Chen drove the car to the small construction site inside and found a small room on the side. He approached the window and saw a pile of iron ingots inside. Lu Chen was overjoyed. This was a windfall.

In fact, Lu Chen was lucky. The steel plant was planning to build another small warehouse before, but after the news of the meteorite came, the construction site stopped.

It happened that there was a batch of iron ingots that had no place to store, so a small room was temporarily built to store them. This time, the official came to collect supplies and just skipped this room, so Lu Chen got a bargain.

Lu Chen immediately took out the iron ingots and loaded them into the car. When he saw that the car could not load them, he drove to the shelter. It could be said that he returned home with a full load.

Two hours later, Lu Chen sat on the sofa in the living room of the shelter to rest and began to think about how to use this harvest.

After Lu Chen returned to the shelter an hour ago, it took him an hour to transport the harvested materials into the shelter. Now he can feel that he is tired more easily than before. It is not because of his physical failure, but because of his oxygen intake. Not enough, so we need to consider solving this problem first.

"I originally planned to surround the house, but now let's increase the oxygen level in the shelter. Otherwise, you may suffocate in your sleep one day and you won't even know it."

Lu Chen started to search for information on the Internet to see what good oxygen production methods were available. After more than an hour of searching,

Lu Chen summarized several methods of oxygen production. I won’t talk about chemical ones. There are too many methods and they require the use of many chemicals. The cost is too high. There are two physical methods.

One is to separate liquid air, and the other is the adsorption method. The separation of liquid air is based on the different boiling points of nitrogen and oxygen. The air is first compressed and liquefied and then evaporated. The nitrogen is discharged first, and the rest is the oxygen concentration comparison. High liquid air,

The adsorption method is similar. The difference is that special materials are used to adsorb nitrogen atoms, and the remaining gas is also a gas with a relatively high oxygen concentration. There is also a biological oxygen production method, which is to cultivate cyanobacteria to produce oxygen through photosynthesizers.

Lu Chen thought about it for a while and thought that he could use the liquid air separation method to produce oxygen. After all, he would have to go out later. At that time, the protective clothing would need to be equipped with an oxygen device. If the oxygen production facility in the shelter could directly produce liquid oxygen, then There is no need to build another liquid oxygen production equipment.

Lu Chen then started designing an oxygen concentrator in the Nano Core, and was planning to design a large oxygen concentrator with pipes connecting all the rooms in the shelter, thus ensuring sufficient oxygen in all places in the shelter.

Lu Chen then modified the industrial oxygen concentrator and the corresponding program he found online and designed an oxygen concentrator. He also designed two interfaces on the side of the oxygen concentrator that can be used to connect gas bottles to hold liquid oxygen. , and then Lu Chen got this set of data

Sky type III oxygen concentrator

Manufacturing requirements: 200 energy points, 300kg of steel

Manufacturing time: 30 minutes

Expansion time: 1 hour

Description: A large-scale oxygen generator transformed from ordinary oxygen-generating equipment, with built-in automation programs and added pipelines and monitoring systems, can monitor the oxygen concentration in the air, set corresponding concentration requirements, and recompress excess oxygen into stored in liquid form,

Lu Chen looked at it and found that the oxygen concentrator could not be used today. It was only around five o'clock in the afternoon. After the accumulation of the nano-core during this period, it only had 170 energy points. It would take another 3 hours to use it, but it was already It's five o'clock. You can eat first. After dinner, you can have fun for a while.

Three hours later, Lu Chen started the nano core. When he saw that the energy reached 200 points, he immediately chose to make it. After half an hour, a nano insect nest was spit out. Lu Chen took the nano insect nest to a utility room. , the contents inside have been cleaned out, and the space is enough. After activating the nano-core, the oxygen concentrator began to slowly form. After Lu Chen waited for an hour, the oxygen concentrator was deployed.

I saw that the entire oxygen concentrator was about two meters high, with many pipes extending out to various parts of the shelter.

Then the width and length are about the same, about 1.5 meters. There are many cylindrical tanks inside the oxygen concentrator, and there is a computer embedded on the outer wall of the oxygen concentrator. After Lu Chen started the oxygen concentrator, the computer turned on. Lu Chen Start operating.

After Lu Chen operated it for a while, he discovered that the oxygen concentrator had been connected to the ventilation system inside the shelter.

When the oxygen generator is started, it will suck air from the outside, compress it, and then release the oxygen into the shelter through liquid separation. Its built-in program will discharge part of the gas when it detects that the oxygen content inside the shelter has dropped.

At the same time, a part of the oxygen is released to ensure the balance of internal and external pressure differences while ensuring the oxygen content.

Afterwards, Lu Chen set the oxygen concentration and started the machine. After waiting for about ten minutes, Lu Chen found that the air suddenly became fresher and no longer felt dull.

And the air in the bedroom and living room feels much better than in other places.

Subsequently. Lu Chen came to the workshop and prepared to produce ten small oxygen bottles. He connected the 3D printer, input the drawings of the small oxygen bottles, put in the materials and started production. Exactly 100kg of material can produce ten oxygen bottles.

After Lu Chen set it up, he saw that it was getting late, so he took a shower and went to bed. Lu Chen slept particularly soundly that night.