How does oxygen come from on the International Space Station? Why can t I run out all the time?

Because the main way to obtain oxygen on the International Space Station is to electrolyze water, and water contains a lot of oxygen, one liter of water can produce 620 liters of oxygen after electrolysis, and a person will only consume 550 liters of oxygen per day, and only a small amount of water is needed to ensure the astronaut's oxygen**.

Oxygen is provided to astronauts by electrolysis of water

In order to allow astronauts to stay in outer space for a long time, human beings have also built several space stations in outer space, the existence of the International Space Station is to provide astronauts with an environment that can survive for a long time, and every astronaut who enters the International Space Station can live in it for several months, why can they stay on the space station for so long?

In fact, the reason is very simple, if you want to make an environment suitable for human survival, you only need to prepare food, oxygen and drinkable water, of which food and water are relatively easy to solve, but the storage and transportation of oxygen is a problem, and there is a certain risk in storing oxygen in large quantities. But the solution to this problem is not complicated, because the ISS can obtain oxygen by electrolysis of water, using electrical energy to decompose water into hydrogen and oxygen, and the electricity required for electrolysis of water can be provided by solar panels, and the oxygen produced can be used for astronauts to breathe and other purposes, while hydrogen will be turned into exhaust gas.

The surface will deliver supplies to the space station at regular intervals

The ground will also regularly deliver a variety of materials to the International Space Station, including water, a liter of water can electrolyze 620 liters of oxygen, so you only need to ensure the ** of water, you can ensure the oxygen of astronauts**, Japan Aerospace Exploration Agency, each time to the cargo spacecraft to prepare about 20 tons of water, if it is completely used for oxygen**, a bag of water is completely electrolyzed, enough for astronauts to live in space for 22 days.

However, the water in the space station can not be completely used to produce oxygen, because astronauts also need water in their daily life and work, so water is a very precious resource and must be effectively recycled, so the method used by astronauts in space is wastewater**, which collects the wastewater generated by astronauts in life and work, and there are also some water vapor discharged in the air to collect it by condensation.

Water recycling and oxygen replenishment ensure oxygen**

As long as the wastewater can be done well, it can be reconverted into drinking water after distillation and separation, so that the water in the ISS can be continuously recycled. The ISS also has a complete environmental control and life support system, with which the astronauts can effectively remove carbon dioxide, hydrogen sulfide and other exhaust gases produced by astronauts, thus providing astronauts with a more suitable air pressure and air ratio to ensure the physical and mental health of astronauts in outer space.

In addition to using water to obtain oxygen, the space station also has some directly pressurized oxygen tanks and solid combustion oxygen generators, which can also provide sufficient oxygen to astronauts in space**.

Because the oxygen of the International Space Station is mainly through the electrolysis of water, the use of electricity to split water into hydrogen and oxygen, one liter of water can be completely electrolyzed to produce about 620 liters of oxygen, to meet the oxygen consumption of an adult in a day, plus it will also replenish water resources, so it is not exhausted.

Oxygen from the ISS is produced by the splitting of water, and because the amount of oxygen produced is greater than the amount consumed, it has never been used up.

The key to the continuous energy supply of the International Space Station is electrolysis technology, we all know that hydrogen ions and oxygen are produced after water electrolysis, and as long as there is water, oxygen can be produced in a steady stream.

Where does the oxygen on the ISS come from, and why doesn't it run out? Actually, the answer is very simple.

The oxygen of the space shelter station is mainly electrolyzed water, and as long as there is a small amount of sock or open water, it can be reported that oxygen is obtained all the time. It is made of electrolysis of water to produce oxygen, which is very effective, so it is not exhausted yet.

Oxygen from the ISS is supposed to be extracted by electrolysis and then treatment, because there is always water available, so it is never possible to run out.

The ISS obtains oxygen mainly by electrolysis of water, and as long as there is a small amount of water, oxygen can be obtained all the time.

The oxygen on the space station is produced by electrolysis of water, which works very well, so it has not been exhausted yet.

There is no oxygen in spaceIn this environment, people may not survive for more than 2 minutes without the help of spacesuits; And for a long time in the space station, there must beThere is enough oxygen to keep astronauts alive, like the International Space Station, there are more astronauts stationed on it for a long time, and they have to consume a lot of oxygen every day, and it is not realistic to rely entirely on the ground for replenishment, becauseShipping costs are simply too expensiveFinish. So, where does all this oxygen come from?

Inside the International Space StationThe composition of the air is similar to that of the air on Earth, about 22% oxygen, 78% nitrogen, no argon, in a sense,Purer than the air on EarthAfter each breath, the astronaut will not change much in nitrogen, but will exhale 16% of oxygen and about 6% of carbon dioxide, soThe space station must be constantly replenished with oxygen and carbon dioxide must be sucked in

We know that the submarine is in a closed state under water, and in addition to carrying part of the oxygen, it must have the ability to produce oxygen liquid gasThis technology of the submarine using water to produce oxygenThe oxygen production system used by the International Space Station is very similar to the oxygen production system used on submarines, as long as there is oneWith enough water, a large amount of oxygen can be produced

The oxygen generation system in the ISS consists of two parts:Water** systems and oxygen generation systems。The liquid water inside the water system, including astronauts' urine, moisture condensation, and more, can be reused after rigorous purification, greatly reducing the amount of water transported from the ground.

These ** water,Part for drinking and washing, and part for making oxygen, which is available inside the International Space StationNASA's oxygen generation system and Russia's Elektron system, are all exploitsThe process of electrolysis splits water into hydrogen and oxygen atoms, 2 oxygen atoms form a circular wheel into oxygen molecules, and oxygen is thus formed. Hydrogen is collected and reacted with carbon dioxide to produce water and methane, which is reused and the methane is expelled from the station.

of the International Space StationEach chamber is equipped with an oxygen production system that produces about 2 kilograms of oxygen per day, while each astronaut consumes no more than kilograms of oxygen per dayThe oxygen generation system does not provide 100% enough oxygen (based on 3 astronauts per module), so the ISS still hasIn addition, there is an alternate method of oxygen supply

Every time the ground resupplies the ISS, in addition to food and water,There will also be some pressurized oxygen tanks being transported, which is the International Space StationAn important form of oxygen supplementation；The other is the Russian oneVika Solid Fuel Oxygen Generator, which contains a mixture of powdered sodium chlorate and powdered iron, when heated to 600 degrees Celsius, decomposes intoSodium chloride and oxygen, but the vika is less stable and is generally only used as a backup.

So, on the International Space Station,It's not that oxygen has been used for more than ten years without running out, but that oxygen is continuously produced every day from the waterfor astronauts.

The reason why the oxygen on the International Space Station has not been exhausted after more than ten years of bedrock is because there is a special equipment for producing oxygen in the International Space Station. And this oxygen is produced by an oxygen machine.

Because the oxygen on the International Space Station is all water transported from the earth and produced from water, it cannot be used up.

Oxygen from the ISS is obtained by electrolysis of water, and as long as there is a little water, there can be a constant supply of oxygen.

Because of the International Space Station.

The main way to obtain oxygen is by electrolysis of water.

One liter of water can electrolyze 620 liters of oxygen, and a person will only consume 550 liters of oxygen per day, and the electricity required to electrolyze water can be made by solar panels.

The oxygen produced can be used for the astronauts to breathe and other purposes, and the hydrogen will be exhausted as exhaust gas.

The ground will also regularly deliver a variety of materials to the International Space Station, including water, one liter of water can electrolyze 620 liters of oxygen, so you only need to ensure the water **, you can ensure the astronauts' oxygen**.

The Japan Aerospace Exploration Agency (JAXA) has about 20 tons of water for each cargo spacecraft, and if it were to be used entirely for oxygen**, one bag of water would be enough for astronauts to live in space for 22 days after it was fully electrolyzed.

However, the water hole in the space station can not be completely used to produce oxygen, because the astronauts' daily life and work also need water, so water is a very precious resource, must be effectively recycled, so the method used by astronauts in space is wastewater**, the astronauts in life and work to produce wastewater collection, there are also some Biling water vapor discharged in the air.

It is collected by condensation.

With the development and progress of people's science and technology, human beings began to gradually explore the outer space, and the space station also came into being at this time. Many people say that the space station is not large, so how to provide the daily work needs of these astronauts in outer space, especially how to provide oxygen in the vacuum environment of space to ensure the normal needs of astronauts, and oxygen is an important gas for human physiological metabolism, why has the space station been flying in space for so many years, why has the oxygen not been exhausted? Next, we will be led by Obishen into the secrets of oxygen in the space station.

In fact, in order to ensure the breathing needs of astronauts in the space station, the earliest scientists were able to consider reducing the load, and the earliest oxygen supply method was pure oxygen and low-pressure oxygen supply. In this way, unnecessary weight can be reduced, and the astronauts breathe in a pure oxygen environment, which is more conducive to increasing the load of the launch vehicle. However, there is a very important problem with pure oxygen, that is, if the concentration of oxygen is too high, some electronic devices in space will fail, and it is easy to cause large sparks when sparks.

Later, the space station switched to the combination of oxygen and nitrogen, so that the astronauts could breathe normally without sparks. <>

In the space station, it is necessary to rely on our ground to provide oxygen, but also rely on the oxygen production function of the space station. The oxygen production function is mainly the oxygen produced by electrolysis of water. Water electrolysis is the use of electricity to separate hydrogen ions and oxygen ions in water, and then discharge excess hydrogen into space.

As long as enough water is brought from the ground, the oxygen in the space station can be maintained. Another electric energy is that solar panels obtain electricity, and then further electrolysis of water can ensure the amount of oxygen for astronauts. And then there's still some spare oxygen on the station in case of a gas leak, for example.

To sum up, the oxygen in the space station is mainly produced by electrolysis, and then when necessary, the ground will replenish materials in a timely manner, supply water resources, and continuously provide oxygen, so as to ensure that the oxygen consumption in the space station can maintain a balance.

It is mainly obtained from water, food, and the giving of rolling scientists, and will solve the oxygen situation on the space station through specific plans. The main thing is that experiments in this area have been carried out, through recycling, as well as the method of electrolysis of water by Da Collapse God, so that the oxygen of the space station is not exhausted.

It is a physical phenomenon of electrolysis of water, so it will run out, and then the space station is in a state of air leakage, so the astronauts do not need to carry oxygen cylinders after boarding the space station.

Oxygen is extracted by an air filtration device. As long as the air circulates, the filter unit will always operate.

It is converted into oxygen through electrolysis, which is very environmentally friendly, and such technology is very advanced.

Generally, the oxygen in this is emitted by a very powerful device, and the name of this equipment is called oxygen concentrator.

In the early days, the oxygen in it was brought by astronauts, but later a lot of oxygen tanks were installed in it, and with the current development, the International Space Station was built, which had some circulatory systems, and finally it was able to form oxygen.

After the water vapor, urine, and wastewater brought by the astronaut's breath pass through the **system**, it is decomposed into oxygen by electrolysis.

Some of them are carried up from the ground, and there is a sedan chair that is converted into a closed friend through the reaction inside, because it is replenished as soon as it is straightened, so it is not exhausted and is recycled.