Doomsday Bunker Upgrade

It is really unnecessary to make the corridor a floor door. After all, the two front doors have been broken through. It is not very meaningful to make the corridor a hidden door.

Moreover, after making the door into a floor door and changing the structure of the corridor, it seems that it will become inconvenient to carry materials.

Since there is no plan to move other places, the drawing of this gate is ready.

Looking at the CAD design drawings made on the computer, Chen Xin couldn't help but sigh with emotion. This is the skill he learned by himself when he was looking for his first job when he just graduated from university.

Originally, Chen Xin thought that after the end of the world, he would no longer draw drawings, but he did not expect to use this skill so quickly.

But the reality is always more bizarre and complicated than we imagined. Maybe fate will give you an unexpected surprise.

Chen Xin couldn't tell whether it was a surprise or a fright. He closed the laptop again, put it on the bedside, checked the pistol on the bedside table and put it where he could get it most easily, and then Chen Xin went out. He turned on the bedroom light, covered the quilt and closed his eyes.

Tomorrow, he will have to upgrade the gate and make an oxygen generator for Mo Qingyan. There are still many things to do.

But this feeling of fulfillment is not bad for Chen Xin.

When Chen Xin fell asleep, there was still a dim green light in the bedroom, which was the algae oxygen generator in the corner working.

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Chen Xin, who woke up early, was already sitting in front of the workbench. He planned to finish the oxygen generator for Mo Qingyan first.

The materials sent by Ding Ning are still sufficient, and it is enough to make an oxygen generator. The only trouble is that although the glass she brought is guaranteed to be a whole piece as much as possible, there are still a lot of broken glass that needs to be cut and spliced.

In fact, it would be the best use of these broken glass if there is a melting furnace to melt the glass and remake it into the required shape, rather than sticking them with glass glue.

However, for Chen Xin, he only needs glass as a raw material. With the help of the system, he can easily process these glass into any shape he wants.

Next to the workbench at this time, the original broken glass has been reshaped into a tall circular straight cylinder, and Chen Xin is making the base.

The base of this kind of microalgae oxygen generator is the key. The glass straight cylinder is relatively just a container. It doesn't matter what shape it is made of, but the ring-shaped straight cylinder is relatively efficient in utilizing light.

Pipes and vacuum pumps need to be installed on the base to fill carbon dioxide into the annular straight cylinder to stimulate microalgae to perform photosynthesis.

Therefore, the chassis should be laid with an annular pipeline, and the carbon dioxide should be pumped into the pipeline with an air pump, so that the carbon dioxide can enter the annular straight cylinder from the small opening on the pipeline.

However, the production of high-purity carbon dioxide is more troublesome and dangerous, so Chen Xin directly uses ordinary air here, so that the chassis can directly absorb the surrounding air.

As for the fill light, it is installed on the top cover, because the circular straight tube is placed upright, the dead algae will be deposited to the bottom, and the light transmission will be relatively poor.

With the various tools on the workbench and the upgraded oxygen generator in the bedroom for reference, this oxygen generator for Mo Qingyan was made very quickly.

After all, the structure itself is very simple, and the technology is relatively uncomplicated. With the help of the system, Chen Xin quickly completed everything and assembled it together.

Compared with the oxygen generator with an upgraded system in the bedroom, the one Chen Xin made by hand looks a little rougher, and there is not much difference other than that, it is already used for Mo Qingyan. enough.

Therefore, after completing the oxygen generator, Chen Xin did not spend his survival points to upgrade the oxygen generator, and planned to hand it over to Mo Qingyan.

Putting the finished oxygen generator aside, Chen Xin looked at the time and planned to have lunch first, take a rest, and then upgrade the door in the afternoon.

Although it was just to confirm the upgrade, Chen Xin did not intend to rush to finish it.

There is not much to do in the shelter every day, Chen Xin doesn't want to finish everything at once, and then become idle to play games.

Of course, Chen Xin doesn't really have nothing, and the daily maintenance of the planting greenhouse can't be saved.

It's just that as the crops enter the growing season, he only needs to ensure water supply and light to maintain the operation of the planting greenhouse.

As for the prevention and control of various pests and diseases common in general greenhouses or planting greenhouses, Chen Xin is naturally very concerned.

But I don't know if the seeds I bought are good, or if the planting greenhouse has been upgraded with black technology. At least so far, Chen Xin has not encountered any crop diseases and insect pests, and all the crops are growing very healthy.

The upland rice he planted has now entered the long ear stage, starting from the young ear to heading. This process will last for about 30 days. According to the growth cycle, in a few days, the upland rice should enter the fruiting stage and start heading.

I have to say that Chen Xin has never planted fields before. After he really started to grow upland rice, he realized that the so-called two seasons of upland rice a year are only because the environment and climate do not allow it.

If it is in a greenhouse, let alone two seasons a year, he can plant three seasons a year and four seasons.

In this way, Chen Xin found that after he expanded the planting greenhouse to the current 200 square meters, if he used half of the land to grow upland rice, he could harvest 600 catties of rice a year, although not a lot, but as a staple food to eat at least It is enough to maintain Chen Xin's consumption alone.

Even if Chen Xin upgrades the planting greenhouse and upgrades the current single-layer hydroponic planting to multi-layer hydroponic planting, all of which are used to grow vegetables, and the land is used to grow upland rice, his output can even afford one or two more. personal.

As for further upgrades, come up with an aquaponics symbiosis cycle system and animal breeding, and simply raise some fish or poultry such as chickens and rabbits, then it will be able to maintain the needs of more people to survive.

And more importantly, Chen Xin can now trade vegetables for food from the SWAT team.

Although the food in the shelters that Qin Lan brought before was really uncomplimentable in terms of taste and texture, at least it was food, something that could be eaten, and it was still considered a relatively good food today.

When it comes to food, after thinking about it, Chen Xin decided to eat the mushroom roasted rat meat brought by Qin Lan at noon today. As for the canned meat that was exchanged from Mo Qingyan before, he could keep it and eat it slowly.

After all, rat meat is eaten now, but pork is not sure when it will be eaten again.

Originally, there was an alliance leader who should be updated today, but at present, the manuscripts in hand are worrying, so I can only owe it first, and update it together when it is on the shelves.