Warm congratulations on the successful launch of my country's first solar exploration satellite 'Xihe'
【Revision】
"We have specially designed such a living cabin. This cabin is also inflated and divided into small living cabins using this soft material. Each living cabin is two meters long, one meter wide and high.
One meter, it can accommodate members to rest very comfortably inside.”
Wu Hao led everyone to the internal anatomy model of an inflatable inflatable space capsule and introduced it to everyone.
Inside this huge pumpkin-shaped expandable inflatable space capsule, it is divided into rectangular spaces by a structure similar to the unfolding of petals. These rectangular spaces are the living and resting cabins introduced by Wu Hao. These living and resting cabins are according to the
Scattering structures are arranged from the center to the edge, with a relatively spacious passage in the middle connecting each living cabin.
"I have a question, will such an inflatable space capsule easily breed fire? The most taboo and dangerous thing on the space station is fire. Once a fire breaks out, it will spread quickly and be difficult to extinguish. And the members of the space station
Well, it is often difficult to escape due to the rapid spread of fire." Among the people, an expert raised an issue that he was most concerned about and worried about.
This question was very targeted, so after asking the question, everyone immediately looked at Wu Hao, waiting for his answer.
Wu Hao smiled when he heard this, because they had already considered such a problem. So he was confident, and he calmly led everyone to an expandable inflatable space capsule polymer composite sample placed nearby, and introduced it to everyone.
.
"This is the polymer composite material that makes up the inflatable inflatable space capsule. Please see, the wall of this space capsule is actually composed of more than a dozen different layers of polymer composite materials, including the outermost protective layer.
, the internal structural layer, and the sponge-like cavities in the middle are filled with special liquid used for automatic repair when the cabin ruptures.
The innermost layer is the antibacterial layer. The main function of this antibacterial layer is to inhibit the growth of bacteria in the cabin, thereby ensuring a hygienic environment within the entire space capsule.
As for the fire prevention issue that everyone is most worried about, this was taken into consideration at the beginning of our design. The polymer composite material that makes up this inflatable inflatable space capsule has strong fire resistance. Unless it is continuously burned at thousands of degrees, it will easily burn.
Difficult to burn.
In addition, in addition to some cables scattered throughout the wall of the entire inflatable inflatable space capsule, there are also numerous micro sensors. These sensors always monitor the status of the entire inflatable inflatable space capsule. Once a problem occurs, such as where it is damaged,
Problems such as abnormal temperatures will be quickly fed back to the cabin system, thereby notifying cabin members to check and deal with them in a timely manner."
With that said, Wu Hao motioned to the staff who were already prepared. The two staff members understood and immediately began to demonstrate to everyone.
I saw one person holding a long piece of polymer composite material, and the other person lit a small flame spray gun and began to spray and burn the polymer composite material. The temperature of this flame spray gun is very high, and the outside of it
The maximum temperature can reach thousands of degrees.
But under the continuous burning of the flame spray gun, the polymer composite material showed no signs of burning. Then the staff member took another flame spray gun and burned the two spray guns for a long time.
The molecular composite material still has no burning phenomenon, but slowly turns black under long-term burning.
After burning for about a minute or two, the staff member stopped and turned off the flame. The staff member holding the polymer composite material put the polymer composite material in his hand into a tray, and then walked to everyone to show it to everyone.
Wu Hao picked up a tweezers from the tray and poked the burned part of the polymer composite material inside the tray, and saw some black powdery lumps falling off.
While demonstrating, Wu Hao introduced to the crowd: "This kind of polymer composite material will slowly burn, carbonize and decompose only when it is burned at high temperature for a long time. Once it is removed from the high temperature, it will not burn on its own.
The reason why this is done is to comply with relevant international space conventions and prevent the spacecraft from being fully burned when returning to the atmosphere, causing a large amount of debris to fall to the ground, thereby causing pollution and damage."
After hearing Wu Hao's explanation, these experts looked at the polymer composite materials in the tray, and some even turned over them. However, when some experts were about to pick up the burned black powder, some even wanted to get it contaminated.
When I arrived, I was dodged and stopped by the staff.
Seeing the expert's embarrassed look, Wu Hao smiled and explained: "Sorry, this polymer composite material is still in the confidentiality process, and all these related experimental materials cannot be taken out. And these materials have certain
Toxic, not suitable for touching with hands."
After hearing his explanation, the other experts nodded to express their understanding. As for this expert, his face turned red, but he still didn't say anything. In fact, everyone understood what he wanted to do, and Wu Hao was being polite when he said this.
Just when the scene was a little awkward, an expert raised a new question, which solved the problem for the expert.
"What should we do once this inflatable inflatable space capsule is damaged and the damage is too great and the special liquid you mentioned cannot repair it?"
Regarding such a question, Wu Hao smiled, then shook his head and said: "Under normal circumstances, such a problem will not occur.
There are not many cases of such major damage, unless it is hit by larger space junk fragments or small meteorites. However, these larger space junk fragments and small meteorites are under strict monitoring, so it is basically unlikely that they will.
This happens.
As for the impact of some unmonitored small space debris and small meteorites, it is difficult to prevent it. Faced with the impact of ultra-fast space debris and small meteorites, let alone this kind of inflatable inflatable space capsule,
Even a regular space station would probably be hard-pressed to stop it."
After hearing what he said, everyone at the scene nodded. Indeed, no matter what kind of spacecraft it is, so far there is no ability to withstand the impact of these space debris fragments and small meteorites.
The methods currently adopted by various countries are mainly prediction and early avoidance. Of course, this can only prevent and avoid the impact of larger space debris fragments and meteorites. For small space debris fragments and small meteorites, you can only rely on luck.
The International Space Station has been hit by space debris and small meteorites many times, causing leaks. Even though it has been repaired several times, it seems that the problem of leaks has not been stopped so far.
Compared with traditional space capsules, Wu Hao's inflatable space capsule may be better. Because it can quickly repair small impact damage gaps to prevent the gas in the cabin from leaking out and reducing the air pressure.
