A big country of aerospace with black technology

Boundless space, mysterious and dangerous!

Breaking away from the protection of the atmosphere, whether it is cosmic high-energy rays anytime and anywhere, or the high temperature when the sun is shining.

They are enough to bring people into space, posing a deadly threat.

Not to mention the low pressure in space, the low temperature after leaving the sun-irradiated area.

Each can be the killer of an astronaut.

In order to protect the lives of astronauts, it is necessary to develop a space suit that can protect the lives of astronauts in such a harsh space environment.

As the first spacecraft in China to realize manned spaceflight, the spacesuits needed by astronauts also need to be designed from scratch.

Since the requirements of the first step of manned spaceflight do not include the content of walking outside the cabin, what needs to be developed at present is the space suit inside the cabin.

In general, an in-cabin spacesuit consists of a helmet, garment, gloves and boots.

It can provide astronauts with the necessary standard atmospheric pressure, block all kinds of radiation in space, maintain the body temperature of astronauts, deal with the metabolic waste produced by astronauts in the process of wearing spacesuits, and provide necessary oxygen supply and exhaustion. carbon dioxide.

Therefore, strictly speaking, a space suit is not actually a kind of clothing, it is more like a complete life support system.

Even after two hundred years of great breakthroughs in biotechnology, almost every human gene has been studied thoroughly.

There is also no way to transform the human body that has evolved over millions of years to the extent that it can adapt to the space environment!

Of course, the canned person who uploads his consciousness into the tin can and relies on various sensors to perceive the world is not within the scope of the discussion.

Therefore, such an external life support system is still necessary.

However, the research and development of space suits in China at this time has encountered insurmountable problems.

That is, there is absolutely no reference for the research and development of space suits. At present, the only countries in the world with technical reserves in this area are Da Mao and Ying Jiang.

However, it is basically impossible to obtain first-hand space suit research data from them.

Once, someone asked whether it was possible to buy a space suit from Da Mao for reference or as a spare.

But after contacting Da Mao's Space Department, the other party did not agree to our request.

This is not very strange, after all, Da Mao is following behind the West at this time, trying to gain their acceptance.

Therefore, the research and development of space suits can only be solved by ourselves.

"So, what does this matter have to do with our Rocket Research Institute?"

Zhang Xingyang also looked confused when he was asked to help them develop the space suit.

After all, this matter basically has nothing to do with them, and they still have to carry out the transformation of Hongyan rocket at this time.

All departments are basically in a state of overload.

There is no such manpower and material resources to assist the development of space suits.

"To be precise, this matter does not have much to do with you, but the research and development of space suits has encountered many bottlenecks."

Sun Hongtao's characteristic rough voice rang in Zhang Xingyang's ears.

"We're also running around brainstorming ideas to see if you guys can come up with some helpful suggestions."

Zhang Xingyang also understood at this time that the progress of the space suit research and development project seemed to be very unsatisfactory.

Otherwise, it would be impossible to ask the Rocket Research Institute, which is basically so busy that its feet don't touch the ground, to help.

But now that people have come to the door, Zhang Xingyang also told some of what he knew.

"A space suit, to put it bluntly, is a life support system."

"So when we are developing, we must take into account the high overload of astronauts during launch and return, as well as the low pressure and low gravity in space."

"The first problem to be faced is the problem of pressurization inside the space suit."

"You should also know that the air pressure in space is very low. If you can't pressurize, ensure enough air pressure."

"Then the blood in the human body and the gas in the body tissue will leave, causing the astronauts in space to suffer from the diving sickness common to divers!"

In fact, in the near-vacuum environment in space, if the astronauts do not have enough protection, they will die due to the instantaneous boiling of blood under low pressure!

Members of the space suit project team also said at this time:

"We know that, but it's not clear how to get enough pressure inside the suit!"

"To maintain sufficient air pressure, the first thing to do is the airtightness of the spacesuit."

Zhang Xingyang answered the other party's questions patiently.

"Especially at the joints of the various parts, like the collar where the helmet meets the torso, and the joints at the hands and feet."

"These parts must ensure the tightness of the connection."

"To ensure airtightness, a certain airtight limiting layer must be specially set up on the spacesuit. This part can be coated with neoprene nylon tape to further strengthen the airtightness of the spacesuit."

After Zhang Xingyang finished talking about the issue of airtightness, he also said some things that everyone might not consider.

"Although our first manned spaceflight will not stay in orbit for more than three days, the diet and excretion of astronauts must be considered."

At this time, everyone present except Zhang Xingyang frowned.

Because the problem of excretion is actually more complicated.

Liquids are relatively easy to resolve, but solid excretions are difficult to resolve through similar catheters.

"Solid excrement is hard to solve, isn't it?"

Even Sun Hongtao, who doesn't know much about the specific technology here, can think of it, let alone other people.

"There are two solutions. The first one is to use a special collection bag, which is wrapped up during excretion, in the shape of a funnel, and fungicide is poured after excretion to pack and collect the excrement."

Zhang Xingyang frowned slightly when he said it, because this method is actually not very suitable for our first manned flight.

"However, this puts relatively high requirements on the flexibility of the space suit."

"So I still recommend the second method, using an 'extraction toilet' to suck up the excrement through a special fan, and then dehydrate, deodorize, etc., and seal it in a sealed bag."

"Will this cause the manned spacecraft to be overweight?"

What Sun Hongtao considered was more comprehensive.

"Our current manned spacecraft has enough space, especially after switching to the Hongyan rocket."

Zhang Xingyang's answer gave Sun Hongtao a reassurance.

Then Zhang Xingyang turned around and took out a piece of paper and a pen from his drawer.

I began to draw a sketch of the space suit design according to the space suit in my memory and the current domestic technical level.

Zhang Xingyang's hands were steady and quick, and he completed the sketch in less than ten minutes.

"If you believe me, you can try to design according to this sketch."

Passed the sketch to the person in charge of the space suit project team. After a glance, the other party looked at Zhang Xingyang in surprise and said:

"Are you designing a space suit or a mecha?!"

"Of course it's a spacesuit, and mechas don't look like this!"