Chapter 77

After listening to the technician's words, uncle Ding thought that it was the same thing. Today's external environment is not the peaceful era before the disaster. If you hide in the mountains, you can hide for a month without a net like investigation. The extremely cold and anoxic natural environment is enough to kill anyone.

It's like climbing Mount Everest or going to the north and south poles before a disaster. Without adequate preparation, professional protective equipment and warm clothing, you will only have cold and death.

However, while watching the technicians install these biological reaction facades, uncle Ding suddenly thinks of his daughter Ding Ning and Mo Qingyan.

Although Ding Ning and Mo Qingyan haven't visited the shelter where they are, Qin LAN knows something about it when she went there, and has reported it to him when she came back, so uncle Ding knows that they don't have greenhouses or any oxygen generating equipment.

Out of worry about his daughter, uncle Ding asked the technician, "is it troublesome to make anesthesia with this kind of equipment? If private shelters want to build a similar device, can they do it? "

The technician took a surprised look at Uncle Ding. It seemed that the special police captain's focus was a little strange, but he explained: "if we just make a similar simple device, it's not troublesome. It's just that the oxygen generation efficiency and maintenance and cleaning of the equipment will be very troublesome.

In the case of private shelters, if you want to make oxygen, it is better to plant greenhouses. In the case of electricity and water, greenhouses can provide both food and oxygen, which is much simpler than making a set of such oxygen making equipment. "

Technical personnel's words let Dingshu heart sink, immediately to dingning they are full of worry.

He wanted to ask the technicians if they had any more equipment, but this was swallowed by Uncle Ding.

The equipment in front of him is for the survival of more than 20000 people in the shelter. Uncle Ding can't embezzle it for his own sake, even if he only needs a small part of it.

Moreover, compared with getting a set of equipment for Ding Ning and Mo Qingyan, the easier way is to let them move to the shelter.

This can not only solve their survival problems, but also provide security for their safety.

After all, no matter what, in the shelter of the police station, uncle Ding, as the captain of the special police, is in charge of more or less, which can guarantee Ding Ning's safety.

After figuring out this truth, uncle Ding didn't ask the technicians any more. He made up his mind to send someone to pick her up no matter what mood Ding Ning was in this time.

It's a big deal. I bow my head and admit my mistake to her.

It's no shame to bow to your daughter and apologize.

However, Chen Xin had to do it by himself.

However, instead of building another workbench, Chen Xin borrowed the workbench attached to the weapon cabinet.

Although it's a workbench for making and maintaining weapons, it should have all kinds of tools, and the related auxiliary materials such as adhesive tape and glue are also quite complete. Even if the tools are not very handy, it's not particularly difficult for Chen Xin to transform the existing materials and make a simple oxygen making box.

A hole is made on the side of the plastic box to connect the pipe and the micro vacuum pump, and then a vertical pipe is connected, which is mounted on the screen window placed in the plastic box to ensure that the water from the pipe can flow to the screen window, and then a fill light is installed in front of the screen window. This simple algae oxygen making box is completed.

Although it is rough and terrible, the pipes are all connected by adhesive tape and sealed by glue, and the pipes and screens lack support, it seems to be tottering, but in the judgment of the system, it is still a complete survival equipment.

"Simple algae biological oxygen box"

"upgrade scheme 1: increase algae attachment surface, improve algae breeding efficiency, oxygen production + 10%, biomass production + 5%, upgrade the required survival point of 100"

"upgrade scheme 2: change the water tank structure, improve algae photosynthesis efficiency, oxygen production + 15%, upgrade the required survival point of 80"

see system improvement After providing an upgrade plan, Chen Xin was relieved. Since this crude device can be identified as an algal biological oxygen box by the system, his next task is to collect materials or directly use survival to upgrade the oxygen box.

From the two upgrade methods provided by the system, Chen Xin also judged that the two upgrade routes of the algal oxygen tank should be the fuel cell route to become a biological generator, and the other to become a pure oxygen generator.

The first kind of multicellular algae is obviously more suitable for attachment growth, which can recover a large amount of biomass for fuel cell to convert electricity.

The second is more suitable for planktonic life. The purpose is to obtain more oxygen, not to recover biomass.

For the two upgrading schemes, although both can be chosen, Chen Xin obviously prefers the first scheme, because he needs to obtain biomass fuel cells to provide power for the refuge.

After all, he also has a greenhouse to provide oxygen. He doesn't need to rely on the oxygen tank to produce a lot of oxygen, which is only auxiliary equipment in his plan.It's just that the upgrade of this oxygen box can't be carried out for a while. On the one hand, there are not enough materials for Chen's novice. On the other hand, he has used up his survival points by upgrading his weapon cabinet and protective clothing.

Considering that the oxygen content in the atmosphere is not so high that people can't breathe, he also has a greenhouse to provide oxygen, and Chen Xin is not very urgent to upgrade the oxygen box.

Moreover, Chen Xin, who reviewed the data at this time, also reflected that even if the earth's surface and marine ecology all collapsed and there was no sunlight for photosynthesis, the oxygen in the earth's atmosphere would be enough for humans to breathe for a long time.

Although the previous global fires and meteorite impacts consumed a lot of oxygen in the atmosphere, the remaining oxygen is still enough for human beings to use for a long time, even enough to support the dust in the sky to disperse and the ecological reconstruction of the earth.

Moreover, according to Chen Xin's conjecture and the data he found in the data in his computer, the current situation of complete darkness and no light will be improved for at most one year.

Although the dust in the sky still blocks most of the sunlight, the earth's surface may change from a dull environment to a low light environment within one to three years. In the ocean, which accounts for 70% of the earth's surface, algae can produce oxygen through photosynthesis in a low light environment.

In other words, human beings may face the problem of lack of oxygen, but they will not be unable to survive because of lack of oxygen.

The existence of oxygen generator is only to improve the living environment of human beings in the refuge and make human beings live better.

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