The vastness of space is mysterious and dangerous!

It is detached from the protection of the atmosphere, whether it is the cosmic high-energy rays anytime and anywhere, or the high temperature when the sun shines.

are enough to put people into space and pose a deadly threat.

Not to mention the low pressure in space, the low temperature after it is out of the sun's irradiated area.

Each can be the murderer of an astronaut.

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

As the first spacecraft to achieve manned spaceflight in China, the spacesuits required 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 extravehicular walking, what needs to be developed at present is an in-cabin spacesuit.

In general, an in-cabin spacesuit consists of a helmet, clothing, 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 generated by astronauts in the process of wearing spacesuits, as well as the necessary oxygen supply and carbon dioxide discharge.

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

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

There is no way to modify the body of human beings that has evolved over millions of years to the point where it can adapt to the space environment!

Of course, the canned people who upload their consciousness to the tin cans and rely on various sensors to perceive the world are not within the scope of discussion.

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

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

That is, there is no reference material for the research and development of spacesuits, and now there are only two countries in the world that have technical reserves in this area, Da Mao and Eagle Sauce.

However, it is basically impossible to obtain first-hand spacesuit research materials from them.

Once, someone asked if it was possible to buy a spacesuit from Da Mao for reference or as a backup.

However, after contacting Da Mao's aerospace department, the other party did not agree to our request.

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

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

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

Zhang Xingyang was also confused when he received them to help assist in the development of the spacesuit.

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

All departments are basically in a state of overload.

There is also no such manpower and material resources to assist in the development of spacesuits.

"To be precise, this matter does not have a lot to do with you, but now the research and development of spacesuits has encountered a lot of bottlenecks."

Sun Hongtao's unique rough voice sounded in Zhang Xingyang's ears.

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

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

Otherwise, it would be impossible to get the Rocket Research Institute, which is now basically busy to the point where its feet don't touch the ground, to help.

But since people have already begged to come to the door, Zhang Xingyang also said some of the things he knew.

"The spacesuit, to put it bluntly, is a life support system."

"Therefore, when we are developing it, 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 face is the problem of pressurization inside the spacesuit."

"You should also know that the air pressure in space is very low, if you can't pressurize, make sure that there is enough air pressure."

"Then the blood in the human body and the gas in the body tissues will leave, so that the astronauts in space will suffer from the diving diseases that divers often have!"

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

A member of the spacesuit project team also said at this time:

"We know that, too, but it's not clear how we can do enough pressure inside the suit!"

"If you want to maintain enough air pressure, the first thing you need to do is the tightness of the spacesuit."

Zhang Xingyang patiently answered the other party's questions.

"Especially at the junction of the various parts, such as the collar at the junction of the helmet and torso, and the junction at the hands and feet."

"These parts have to be tightly connected."

"In order to ensure the tightness, it is also necessary to set up a certain airtight restriction layer on the spacesuit, which can be coated with neoprene nylon tape to further strengthen the airtightness of the spacesuit."

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

"Although our first manned space flight will not stay in orbit for more than three days, the astronauts' diet and excretion must be taken into account."

At this time, except for Zhang Xingyang, everyone present frowned a little.

Because the problem of excretion is actually more complicated.

Fluids are relatively easy to dispose of, but solid excreta are difficult to dispose of with similar urinary catheters.

"Solid excrement is hard to deal with, right?"

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

"There are two solutions, the first is to use a special collection bag, which is pocketed at the time of excretion, in the shape of a funnel, and after the excretion is poured with fungicide, the excrement is packed and collected."

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

"However, this puts forward relatively high requirements for the flexibility of the spacesuit."

"So I still recommend the second method, using a 'suction toilet', which sucks away the excrement through a special fan, and then seals it in a sealed bag through dehydration, deodorization, etc."

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

Sun Hongtao considered the content more comprehensively.

"Our current manned spacecraft has plenty of 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.

began to draw a sketch of the spacesuit design according to the spacesuit in his memory and the current technical level in China.

Zhang Xingyang's hand was very steady and fast, and he completed the sketch in less than ten minutes.

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

handed the sketch to the person in charge of the spacesuit project team, and after the other party glanced at it, he glanced at Zhang Xingyang in surprise and said:

"Are you designing a spacesuit or a mecha?!"

"Of course it's a spacesuit, and the mecha doesn't look like this!"

(End of chapter)