Chapter 177

Chen Xin doesn't plan to dismantle the equipment of his refuge, so he has to collect additional resources or make his own parts to rebuild the vehicle.

Fortunately, he has a workbench. He can process some parts of the materials needed for the transformation of the vehicle by himself. What he really needs to exchange and collect are some raw materials and materials that are more complicated to process and more convenient to collect by exchange.

Among them, such as auto parts, cold proof materials, and all kinds of steel needed for vehicle transformation, Chen Xin had to exchange with Li Yulong and the special police team to get them.

But for other materials such as shock absorbers, crawler parts and water circulation devices, he can make them by himself. What he consumes is only a small amount of survival and raw materials.

However, most of the raw materials in Chen Xin's reserve are prepared for the overall upgrade shelter originally planned, most of which are construction materials such as cement and steel bars, and the rest are mostly insulation boards and other things.

There are not many high-performance steel products, such as shock absorbers and crawler parts, but only a few steel plates intended to strengthen the shelter structure.

"So we have to collect a batch of steel!" Looking at the list of materials, Chen Xin sighed helplessly.

Although there is a system, even the simplest metal materials can be used as raw materials, or even not metal materials, considering the cost and investment, as well as the subsequent use, Chen Xin thinks it is more appropriate to get a batch of steel.

Fortunately, in addition to these parts that need metal materials to process, things like water circulation devices do not need to consume a lot of metal materials. Although the effect of metal materials is better, they can also be replaced by other materials.

So Chen Xin decided to use the existing materials on hand to make everything he could, and see if he could make some lower level substitutes for those he could not, and then use the survival upgrade to make up for it.

Although the function of system upgrade is powerful, the consumption of survival is not a small number. Although he has nearly five digit survival, according to the consumption listed in the list, if Chen Xin uses the system function to make these things without scruple, he will use at least one fifth of his survival.

So saving or saving.

In fact, it's not too difficult to make water circulation device, and it doesn't need to consume too much materials. The most important thing is the recovery of wastewater and sewage, as well as the recycling after purification.

There is no need to worry about the recovery of wastewater and sewage. When the water circulation device is installed on the vehicle, the pipes in the water area can complete the sewage recovery. The real focus is purification treatment.

Simple sewage purification treatment is not complicated, just using activated carbon, sand and other materials to precipitate and filter the sewage.

However, the effect of such simple filtration is not good, and the chemical pollutants and heavy metal ions that may remain in the sewage will not be separated because of such simple filtration.

Chen Xin has purchased portable filters necessary for survival in the wild, and has also taken apart and studied the structure inside.

In addition to the basic sand and activated carbon filtration, the key is the filter membrane, which can effectively filter bacteria and other harmful substances in the water and make the original sewage return to the drinkable level.

Chen Xin used this portable water purifier when he lived in the wild before. When it was difficult to find a clean water source, or when there was a lack of boiling water conditions to boil the water for drinking, this kind of filter was really a very convenient device, which could easily get clean drinking water.

This kind of filter is used as the water purification component of water circulation device, not to mention overqualified, but more than enough.

However, Chen Xin did not directly use his portable filter as a part to make a water circulation device, nor did he take it apart to obtain parts. Instead, he planned to make one himself.

Saw a section of PVC pipe as the main body, and then cut off more pipes as auxiliary materials. Use the system processing function to transform the structure, turn the pipe as auxiliary material into end cover, and the rest is to fill the main pipe with filter material.

The filter membrane material is special, Chen Xin does not have it on hand. Although it is not impossible to do it with the help of the system function, Chen Xin does not need so much trouble.

Since we need to borrow system functions, why not upgrade them directly?

After filling the sediment and carbon into the main body of the filter, Chen Xin compared the consumption required by making his own filter membrane and upgrading the filter directly, and resolutely chose direct upgrading.

After all, it's just a small thing. It costs 10 survival points to make its own filter membrane, but it only costs 15 survival points to upgrade it directly by adding a little material. In contrast, Chen Xin can afford this survival point.

After upgrading the self-made filter to the same level as the bought portable filter, Chen Xin assembled the filter as a water purification component into the same self-made water circulation device.

In this way, as one of the important parts of the vehicle transformation, the water circulation device is completed.

After checking the list, Chen Xin looked at the materials and parts listed in the list and thought about what he would do next.But just as he was thinking, his radio suddenly rang.

at this time, outside Chen Xin's shelter, a police armored vehicle was parked at his door.

"Chen Xin said that he would open the door immediately." On the bus, a special police member put down his walkie talkie and reported to Li Tou and a man sitting next to him who was not in police uniform and looked like an official.

Both nodded and said nothing more about it.

In the previous operation, although not only Qin Lan was injured and hospitalized, but also several other members of Li Tou's team were also injured and treated in the hospital, even though they were short of manpower, they were still sent out to work with the staff of the joint investigation team on the non official shelters under the current situation of mobilizing the whole city for large-scale rehearsal Work.

"Here lives a member of the public who has cooperated with our special police team. He mainly provides fresh vegetables for our special police team in exchange for some survival materials. We have checked before, and there is no suspicion." Li Tou explains the situation to the officials around him, but he is obviously helping Chen Xin to say a good word to avoid the possibility of Chen Xin being suspected.

"Of course, the work of the comrades of the Municipal Bureau is trustworthy, but the joint investigation team has decided to conduct a second inspection, which is safer." The official like man nodded slightly, and did not make any obvious response to Li Tou's words.

However, looking at his manner, Li Tou also understood what he said, and he listened to it.

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