With the installation function of the system, Chen Xin just moved a thought, and installed a set of aquaponics equipment that was originally placed in the storage room into the planting greenhouse, and connected it to the water tanks of several hydroponic planting trays.

The aquaponics system has strict requirements for the oxygen content, PH value, total nitrogen, temperature and water alkalinity of the water body, so after Chen Xin installed the equipment, although he did not let the equipment run, Chen Xin still needed to test the water quality with the help of the monitoring instruments attached to the equipment to ensure that the requirements could be met.

Fortunately, Chen Xin uses groundwater, and has always only added nutrient solution to grow vegetables, and there is still no problem with water quality.

However, due to the recent increase in groundwater temperature, the temperature of the water used in the shelter is inevitably a little high, which is also the result of the high temperature of the water in the hydroponic trays in the greenhouse.

There is no problem with growing vegetables, but if it is used to raise fish, unless it is a tropical fish, it will make the fish a little uncomfortable.

Therefore, when it is actually used, Chen Xin needs to consider controlling the water temperature, so as not to get too high and fish farming becomes boiled fish soup.

This is actually very easy to control, because the groundwater used by Chen Xin is pumped up and stored in a tank, and then transported from the tank to the water pipes in the shelter when needed.

Therefore, as long as the water pump pumps up the hot groundwater, it is not used immediately, but after it has cooled down for a period of time, there is no problem.

As for the hot spring bath that Qin Lan wanted before, this is also easy to get, you only need to add another thermal insulation water tank, and put the hot water pumped up into the thermal insulation tank to keep it warm, or even simpler, you can use it as you go.

After all, most of the so-called hot springs are either too high or too low, and there are very few hot springs that are really suitable for bathing, so most of the hot springs need to be heated or cooled, and some of them are just transported to the pool to boil.

With these thoughts and thoughts tumbling in his head, Chen Xin looked at the drawings of the dryer on the computer and had no inspiration, and he was really too lazy to do it anymore when he was irritable, so he simply turned off the computer and took a shower, and went to bed.

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Li Yulong's side is very efficient, perhaps because even after the end of the world, there are still people under his father who do things for him.

So he didn't let Chen Xin wait for a long time, and after two days, he came to the door again.

"Xiaolong, did you get the dryer I wanted, or did you get the gauze?" was invited by Li Yulong to his luxury RV, sat on the sofa and looked at Li Yulong's happy face, Chen Xin asked curiously.

Li Yulong didn't sell it, but said with a smile on his face: "It's also Brother Xiao Chen, you are lucky, you told me before that you wanted a dryer, and I will go back to find the source, guess what?" I really found it! ”

"Did you really find a dryer?" When Chen Xin heard Li Yulong say this, he couldn't help but show a happy expression, and asked him, "What kind of dryer and how big is it?" The result? ”

"I found it, it was a fruit and vegetable machine used to make dried fruits in my father's hotel kitchen, and it was relatively large at the time, and it could dry about thirty or forty catties of fruit at a time, and it was an LCD touch screen, intelligent temperature control, and things were very good." Li Yulong looked like he was asking for merit and rewards, and at the same time he was very boastful of what he had found.

After listening to Li Yulong's explanation, Chen Xin's eyes suddenly widened, and he was a little surprised: "Fruit and vegetable machine? ”

"Yes, fruit and vegetable machine! Although it is used to dry fruits, I found the instructions, and it says that it is no problem to bake grains. And the thing is almost brand new, I only bought it in the second half of last year, and I have hardly used it. Li Yulong didn't expect to find such a thing.

Li Yulong's introduction made Chen Xin's heart flutter, and he couldn't help but ask him: "What about the power consumption?" Is the thing bulky? ”

"The power consumption is only 500 watts, and this thing doesn't consume as much power as an induction cooker." Li Yulong seemed to know that Chen Xin was going to ask this, so he took out the manual that had been prepared and handed it to Chen Xin: "The thing is a bit big, because it is used by the hotel, but it has been dragged over, it is in my car, and you can drag it in at any time, Brother Chen." ”

Taking the instruction manual handed over by Li Yulong, Chen Xin opened it seriously and read it.

This fruit and vegetable machine is indeed as Li Yulong said, the volume is a little large, but it is not particularly large, less than one meter high, although it weighs forty kilograms according to the instruction manual, but it is not too big.

Although it can only roast thirty or forty catties of grain at a time, some of them are already very good.

So Chen Xin nodded with satisfaction and said: "It's really good, it's rare to be able to find such a machine in this situation, help me get it in." ”

"Okay, Brother Chen, you can be satisfied!" Li Yulong still nodded with a smile on his face, and asked the bodyguards who came with the car to help carry the things for Chen Xin into the shelter.

The fruit and vegetable machine was placed in the public space, and after being placed against the wall, the power was turned on, and seeing that it could be turned on normally, Chen Xin moved a bag of rice that was originally placed in the corner of the wall, ready to try the machine.

Seeing this, Li Yulong asked the bodyguard to go back to the car outside first, while he stayed by Chen Xin's side with great interest and helped him put the rice in the mesh tray of the fruit and vegetable machine.

Because it was the first time to use it, Chen Xin adjusted a relatively low temperature and only set the time for an hour, intending to see the effect first.

Seeing that Chen Xin was testing the machine, Li Yulong did not rush to leave, but chatted with Chen Xin about how to set up a planting greenhouse after getting the ground source heat pump from him.

"Xiaolong, you want to build a plantation, and the ground source heat pump is taken from me, so the heating problem is solved, but where do you plan to set up this plantation?" Chen Xin looked at Li Yulong and asked him this crucial question.

This is a very important question, because in the current environment, even with the ground source heat pump provided by Chen Xin, it is still impossible to build a plantation on the surface, not only because of the harsh environment on the surface, but also because the cold will affect the construction.

In the bitter cold of dripping water into ice, how to mix cement and lay bricks?

Even if a greenhouse is built with steel and glass, how can such a fragile structure resist environmental erosion?

Rather than spending a lot of resources to build a plantation on the surface, it makes the most sense to find a suitable underground space, even if it is better to dig a hole in the ground by manpower, than to build a house on the surface.

So Chen Xin was curious to see where Li Yulong, who had already received the support of the city government and his father, would choose the plantation site.

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