Although each of the parts had to be brushed, with Qin Lan's help, the two of them worked together to quickly wash all the parts and throw them in the water to soak.

"Is it okay to soak like that? Ah Xin, don't you add detergent? Qin Lan watched Chen Xin soak all the parts in water like this, and confirmed with concern to him again.

Chen Xin nodded and replied affirmatively: "Just soak it like this, but unfortunately there is no kerosene, otherwise kerosene is the best effect." ”

"So what are you going to do now?" Taking off the gloves and putting them aside, Qin Lan looked at Chen Xin, waiting for him to speak.

Being watched by Qin Lan like this, Chen Xin felt a little embarrassed, and after clasping his face with his fingers, he said, "If I say that I continue to play the game, will you beat me?" ”

"......" Qin Lan looked at Chen Xin silently, and said after a while: "No, Ah Xin, you can do whatever you want." Still, I think you should find something to do, because playing games doesn't make you happy. ”

Qin Lan's words made Chen Xin smile, but he didn't say anything, just nodded and said, "In that case, then Ah Lan, you can continue to help and help me assemble the ground source heat pump." Uncle Ding asked you to send so many air conditioning units to exchange ground source heat pumps from me, right? How many do you need? ”

"Ah Xin, how much material do you need to make a ground source heat pump? What is the heating range? Qin Lan didn't say what she needed first, but just asked Chen Xin about the relevant data of the ground source heat pump.

"You can make a ground source heat pump with the materials dismantled from an air conditioner, and the effective heating range is about 100 square meters. Although there is a system, this system does not have a data panel, so Chen Xin does not have much understanding of the equipment he made: "The thermal efficiency of the ground source heat pump is about twice that of the air conditioner under the same power. ”

Through Chen Xin's explanation, Qin Lan roughly understood the performance of the ground source heat pump made by Chen Xin, and also had a number in his heart, so he said to Chen Xin: "I brought eight air conditioning units this time, if you can, I hope Ah Xin can make at least six equipment, and if the other equipment is made with two air conditioning outdoor units, can it improve the heating effect?" ”

Before coming, the political commissar specially mentioned this issue to Qin Lan, and the SWAT team did not want to say that eight materials were exchanged for eight equipment.

Eight air conditioners were replaced by six equipment, and the other two air conditioners were Chen Xin's labor costs, which was the result of discussions between Uncle Ding and the political commissar.

They still have some doubts about the heating effect of the ground source heat pump, and the political commissar also specially explained to her that she asked Chen Xin more information about the performance of the ground source heat pump from Chen Xin, so as to understand the specific heating effect of the ground source heat pump as much as possible.

However, when Qin Lan entered Chen Xin's refuge, she had no doubt about it, although Chen Xin's refuge was only a private refuge, and the place was not big, but at a glance, there were still two or three hundred square meters, and the heat provided by such a large area of ground source heat pump equipment could keep the temperature at about 20 °C, and the effect was already very good.

"With two? Are you talking about parallel devices to improve the heating effect of a single device? As soon as Qin Lan said, Chen Xin understood what she meant, nodded and said: "Of course it can be done, the merger of two devices into one can indeed improve the heating effect, do you need a high-power ground source heat pump?" ”

Of course, Qin Lan gave a positive answer to this question: "The area where the SWAT team is located is not small, and even if it only heats the main area, high-power equipment is needed to meet the heating demand." And with high-power equipment, we can use pipes to disperse the heat to more rooms, so that more people can be heated. ”

"So you want to use the ground source heat pump equipment to make a heating system?" As soon as Chen Xin heard it, he understood what Qin Lan meant.

For places with large heating needs, such as official shelters, it is better to use multiple units of equipment and concentrate the heat energy provided by the equipment and distribute it to more areas through pipes than to use separate equipment.

When multiple devices work together, more heat can be obtained, and the heating effect is of course better than that of a single device.

"Ah Xin, can you do it?" Qin Lan saw that Chen Xin understood what he meant, so he asked with concern.

Of course, what she asked was not the larger ground source heat pump equipment that Chen Xin had already answered, but the heating system based on the ground source heat pump equipment.

Chen Xin thought for a while, and after briefly simulating the whole system in his mind, he said: "Of course it can be done, but more materials and parts are needed.

And if you want to do this kind of large-scale heating system, it is not only the ground source heat pump equipment that is sufficient, pipes, heat sinks, pressurized pumps...... I have a lot of things that I haven't done, and I may need professional help. ”

In this regard, Qin Lan was not surprised at all, after all, although Chen Xin had done work in mechanical equipment back then, and his hands-on ability was indeed very good, and he was already quite good at DIY ground source heat pump equipment by himself, but he was not a professional after all, and it was really too demanding for him to let him make a heating system by himself.

If it weren't for the fact that the knowledge reserve of the family is like a bottomless pit, and he has to understand a little bit of everything, I am afraid that Chen Xin would not even be able to say what he needs to make a heating system.

"If you are a professional, you don't have to worry about it, the city has done the project planning of ground source heat pump for central heating before, and with experts in this area, you only need to be responsible for providing equipment." Qin Lan calmed Chen Xin's heart, this was also the research done by the political commissar and Uncle Ding when they decided to heat the shelter area where the SWAT team was located.

Without the support of professional theories, they really dare not carry out large-scale renovation of the shelter.

Uncle Ding and the political commissar also decided to use ground source heat pump equipment to centrally heat the area where the SWAT team is located after finding relevant experts for theoretical verification.

"Since I have expert guidance, then I don't have much to do, just report the requirements to me how much power equipment you need." Chen Xin heard Qin Lan say that there were experts to provide technical support, and he didn't say anything, just nodded and agreed to this matter.

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