Chapter 85

It's really unnecessary to make the corridor into a floor door. After all, the front two doors have been broken through. It's not significant to make the corridor into a hidden door. Can't people find a door when they come in?

Moreover, if the door is made into a floor door and the corridor structure is changed, it seems to be inconvenient to carry materials.

Since we don't plan to move to other places, the drawing of this gate will be finished.

Looking at the CAD drawings made on the computer, Chen Xin can't help feeling that this is the skill he learned by himself when he was looking for his first job after graduating from university. He hasn't drawn any drawings for a long time.

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

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

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

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

But this sense of fullness is not bad for Chen Xin.

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

Chen Xin, who wakes up early, is already sitting in front of the desk. He plans to do a good job of the oxygen generator for Mo Qingyan first.

Ding Ning sent enough materials to make oxygen generator. The only trouble is that although the glass she brought is as whole as possible, there are still many pieces of broken glass that need to be cut and spliced.

In fact, if we can have a furnace to melt these glasses and then make them into the required shape, it is the best use of these broken glasses, rather than sticking them together with glass glue.

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

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

This kind of microalgae oxygen generator base is the key. The glass straight tube is only a container. It doesn't matter what shape it is made of, but the ring straight tube is the most efficient for light utilization.

A pipe and a vacuum pump need to be installed on the base to charge carbon dioxide into the circular cylinder to stimulate the photosynthesis of microalgae.

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

It's troublesome and dangerous to produce carbon dioxide with low purity, so Chen Xin directly uses ordinary air here to let the chassis absorb the surrounding air.

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

With all kinds of tools on the workbench and the upgraded oxygen generator in the bedroom as a reference, Mo Qingyan's oxygen generator can be made very quickly.

After all, its structure is very simple, and its technology is relatively uncomplicated. With the assistance of the system, Chen Xin quickly made everything and assembled it together.

Compared with the upgraded oxygen generator in the bedroom, Chen Xin's hand-made one looks a little rough. Besides, it doesn't make much difference. It's enough for Mo Qingyan.

So after the oxygen generator was finished, Chen Xin didn't spend the survival to upgrade the oxygen generator, so he planned to give it to Mo Qingyan.

Chen Xin took a look at the time and planned to have lunch first, have a rest and upgrade the gate in the afternoon.

Although it is to confirm the upgrade, Chen Xin is not eager to finish it.

There are not many things 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 to do. The daily maintenance of the greenhouse can't be saved.

It's just that as the crop goes into its growing season, all it needs is water and light to keep the greenhouse running.

As for the control of common diseases and pests in greenhouses, Chen Xin is also very concerned.

But I don't know if it's better to buy the seeds, or if the system has been upgraded. There is black technology in the greenhouse. At least so far, Chen Xin has not encountered any crop diseases and pests, and all the crops are growing healthily.

The upland rice he planted has now entered the long panicle stage. From the young panicle to heading, this process will last about 30 days. According to the growth cycle, in a few days, these upland rice should enter the seed setting stage and start heading.It has to be said that Chen Xin had never planted rice before. After he really started planting upland rice, he realized that the so-called "two seasons a year" of upland rice was only because the environment and climate did not allow it.

If it's in a greenhouse, let alone two seasons a year, it can grow three seasons a year.

In this way, Chen Xin found that after he expanded the greenhouse to 200 square meters, if he used half of the land to grow upland rice, he could harvest about 600 Jin of rice a year. Although not much, it was enough to eat as a staple food, at least to maintain Chen Xin's consumption.

Even if Chen Xin upgraded the greenhouse, and upgraded the current single-layer hydroponic cultivation to multi-layer hydroponic cultivation, all of which were used to grow vegetables, and the land was used to grow upland rice, his output could even afford one or two more people.

As for further upgrading, developing a fish vegetable symbiotic circulation system and animal breeding, and simply raising more fish, chickens, rabbits and other birds, we will be able to maintain more life needs.

What's more, Chen Xin can now trade vegetables for food from the special police force.

Although the food Qin LAN used to eat in those refuges was not flattering in terms of taste or taste, at least it was food. It was edible, and it was still a good food nowadays.

When it comes to food, Chen Xin thinks about it and decides to eat Qin Lan's mushroom stewed rat meat for lunch today. As for the canned meat from Mo Qingyan, he can keep it for a while.

After all, there is some mouse meat to eat now, but pork is not sure when it will be eaten again.

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