After the overall upgrade of the Vault, Chen Xin's workbench has also been upgraded to a technology level of +1, adding a lot of new processing equipment, not to mention making the already easy to use workbench more convenient.

Especially after the upgrade, the new drawing recording function of the workbench is a long-awaited function for Chen Xin, allowing him to save a lot of effort.

For the workbench upgraded by the system, having drawings means that the items can be automatically produced according to the drawings with the help of the system's processing capacity, without Chen Xin's own processing parts one by one, and then assembling them by himself.

Chen Xin can use the system processing function to process parts and raw materials into parts and components required for drawings, and then assemble them together through the system to create finished products, saving a lot of time and energy.

The only thing he needs to do is to enter the drawings into the drawing library of the workbench, which requires him to operate it himself, or to draw, or to build a device for the system to record the drawings, of course, you can also input the ready-made drawings through the computer.

Through his notebook, he entered all the drawings stored in the computer into the workbench, and Chen Xin himself picked up a pencil for a long time and spread out the white paper on the workbench to draw the drawings of the ground source heat pump.

Chen Xin certainly understands mechanical drawing, a skill he learned when he was in high school, and although he can't draw a whole drawing with a pencil like his father did, mechanical drawing itself can't bother him.

However, after work, I learned CAD drawing, a skill that I didn't use for a long time, and now I can pick up a pencil again, and I can be considered to be back to my old job.

It's not that Chen Xin can't use computer CAD to draw drawings, it's just that his computer is just a notebook, even if Chen Xin took special care of it when upgrading the shelter, he also enjoyed an upgrade, but this still can't hide the essence of it's just a notebook, and it can't do CAD drawing while transferring big data files.

This is not something that can be done with a single upgrade, and for Chen Xin, there is no need to do so, and the time he spends drawing by hand is only a little more than that of computer drawing.

After all, it is just a simple assembly drawing, and Chen Xin does not need to be meticulous to draw every part.

Humming a small song, a few pencils in his hand rotated, and a general drawing of the uncomplicated ground source heat pump assembly had been drawn by Chen Xin.

The drawings are submitted through the system, and as the freshly drawn drawings on the workbench are swept by a green light, there is already a new drawing in the system interface.

Seeing that the drawings were successfully uploaded, Chen Xin hurriedly clicked on this drawing, intending to try to see if he could use this drawing to manufacture a ground source heat pump.

This is also the main purpose of Chen Xin's drawings, if the drawings can be used for manufacturing, then the city government wants to order 50 ground source heat pumps from Chen Xin, it only takes a few days to be ready, and he can also start early.

The system was as reliable as ever, and it lived up to Chen's expectations, and as he clicked on the drawings, the manufacturing options for the required materials and parts also appeared in front of Chen.

However, just as Chen Xin was about to start manufacturing, he suddenly stopped, and a thought popped up in his mind, since the items can be upgraded, can the drawings also be upgraded with survival points?

If it can be upgraded, does it mean that he can upgrade the existing drawings and make better equipment?

With this idea, new options have also emerged on the system interface.

Chen Xin can improve the drawings at the current technology level by consuming survival points.

"Isn't it an upgrade?" Chen Xin looked at the options displayed by the system and couldn't help but feel a little surprised.

The system does not provide a drawing upgrade, but a drawing improvement option, which makes Chen Xin, who is used to the system being able to upgrade everything, really feel a little surprised, and at the same time feel a little novel.

However, after carefully checking the prompts given by the system, he also understood.

Drawing upgrade can only upgrade the carrier of the "drawing" itself, such as upgrading from paper to other materials, such as the flexible touch screen electronic ink drawings that can be seen in movies, which can be scaled up and down at will, adjusted and modified, etc......

However, the content carried by the drawings cannot be upgraded, and these contents can only be improved.

Moreover, due to the limitations of the workbench, the improvement of the content of the drawings cannot exceed the technology level of the workbench itself.

In other words, Chen Xin must improve the drawings within the technology level of the current workbench.

This can't be regarded as a particularly useful function for the current Chen Xin, but it can't be said that this function is useless.

At least now he can make some modifications to the drawings of the ground source heat pump to increase the output power of a single ground source heat pump, or he can transform the existing drawings into larger equipment with more power.

At first glance, it seems that there is no difference between the two, both of which are to increase the power of the ground source heat pump, but in fact there is a big difference.

Increasing the output power of a single ground source heat pump refers to optimizing the equipment structure and improving the work efficiency of the equipment without changing the volume and material consumption of the equipment, so as to achieve the increase of output power.

The upper limit of this kind of optimization and improvement is not much, and it only belongs to the category of general product upgrading.

The latter is to concentrate the materials consumed by multiple devices into one device, and use this to create a large device with more power and larger equipment volume.

The ground source heat pump that Chen Xin can manufacture at present is a small type of equipment for home use, and there is no problem with a single device to meet the small space use of a private shelter.

But for an official shelter, even if it's just a small shelter, it's not something that such a small device can do.

This is also the reason why when the city government mentioned to Chen Xin that he wanted to carry out a ground source heat pump heating pilot in a small shelter, Chen Xin would say that a small shelter needs 50 ground source heat pumps.

Because he does not have the ability to manufacture large-scale equipment with higher power, he can only use multiple parallel connections to meet the needs of use.

However, after having the improved function of this drawing, Chen Xin can use this function to manufacture a large-scale ground source heat pump with higher power, and the heating needs that can only be met by 50 pieces of equipment can be met with a few pieces of equipment.

After making up his mind, Chen Xin did not hesitate, and directly used 100 survival points to improve the route of the large-scale equipment for the ground source heat pump drawings he had just uploaded.

After the improvement, there is a drawing of a large ground source heat pump in the system interface.

However, to Chen Xin's surprise, in the system interface, the original ground source heat pump drawings have not disappeared, but still exist.

"It seems that improving the blueprint won't consume the original blueprint!" Chen Xin raised his eyebrows a little, but he didn't dwell on this matter, but turned to check the drawings of the large-scale ground source heat pump, and couldn't wait to see how much material it takes to produce a large-scale ground source heat pump, and what kind of output power a piece of equipment has.

In the system interface, the materials required for a large ground source heat pump equipment have been listed in detail, and the performance of the equipment is also displayed in the form of a data list, so that Chen Xin can intuitively compare the difference between large ground source heat pump equipment and small ground source heat pump equipment.

The output power of the small ground source heat pump equipment manufactured by Chen Xin was about 10KW, which required an ordinary household air conditioner as a material to manufacture.

Of course, an ordinary household air conditioner is used as the material unit here because the parts contained in an ordinary household air conditioner are enough to meet the manufacturing needs of a small ground source heat pump equipment.

However, after the system was upgraded to the workbench, the list of required materials listed on the drawings already detailed the names of a series of parts such as compressors, evaporators, condensers, etc.

Chen Xin can obtain parts by disassembling the air conditioning unit sent by the city government, or he can directly use the parts as materials for manufacturing, and even use raw materials to manufacture parts by himself with drawings.

This is naturally good news for Chen Xin, so that he doesn't have to worry about saying that if there is no air conditioner, he will not be able to make a ground source heat pump.

Compared with small ground source heat pump equipment, in addition to the output power being increased to 50KW, the materials required for the equipment are naturally doubled, and the parts and raw materials contained in three ordinary household air conditioners can be manufactured.

Compared with the original consumption of five air conditioning units as materials to manufacture five 10KW small ground source heat pumps, it is naturally material-saving, and it can also save installation space.

Although large ground source heat pump equipment is much larger than small ground source heat pump equipment, it is not as large as a top five, which is also a very important consideration for underground shelters with limited underground space.

Looking at the large-scale ground source heat pump equipment on the drawing, Chen Xin thought about it for a while, and decided to make three large-scale ground source heat pumps with the materials of ten small ground source heat pumps sent by the city government.

When the leaders of the city government came to discuss the matter of ground source heat pumps with Chen Xin, they asked him to manufacture larger ground source heat pump equipment, and Chen Xin explained the past on the grounds that the materials could not meet the needs.

For the city government, large equipment is of course better than small equipment, Chen Xin can make large ground source heat pump equipment, they will only applaud, and will not feel that he violated the previous discussion.

Therefore, Chen Xin did not hesitate, and directly started the workbench and began to manufacture the first large-scale ground source heat pump equipment.