Do submarine fish have to be oxygenated? Why do oxygen cylinders are used on submarines?

Submarine fish do not have to be oxygenated. Feeding equipment:

1.Fish Tank (Please purchase a fish tank according to the number of boats you plan to keep.) ）

The boat eats raw bait for a long time, and the amount of food is large, and the pollution is very strong, so the fish tank shall not be less than 30 cm, and the larger the water body, the more stable the water quality, the better.

Recommended tank size: 10 to 15 litres of water per dinghy.

2.Fish tank cover.

Must have a fish tank cover – the dinghy is a famous high jumper, don't think that if the water level is lowered, there is no risk of jumping out of the tank.

Anti-jump devices can be made of acrylic, glass and other materials, and vents should be left.

3.Filtration.

Strong filtration is required, and as much filter media as possible.

Fine coral bones can be used as biochemical filter media to strengthen the nitrification system and increase the hardness of the water.

4.Illuminating.

No aquatic plants are planted, no lights are needed.

5.Bottom sand.

It is advisable to stabilize the water quality in a weak alkaline, coral sand and shell sand.

The size of the particles should be 2 3 mm, on the one hand, it will not get stuck in the excrement, and on the other hand, it is easy to clean with a sand washer.

The bottom sand should not be too thick, 1 3cm is enough.

6.Heating rods.

The wattage of the heating rod is determined according to the size of the water body, and there are online calculation tools on many aquarium fish forums.

7.Salt. Natural sea salt (seawater) is the best, followed by coarse salt, and edible refined salt containing iodine is not good (excessive iodine is harmful to aquatic organisms).

8.Thermometer.

A normal thermometer will do.

9.Gravimeter.

This is a necessary equipment for raising a dinghy, which is generally divided into two types: optical hydrometer and Baumé hydrometer.

10.Buckets or empty plastic bottles.

It is used to raise water and remove chlorine.

11.Isolation box.

The general isolation box of the fish market** can be used, which is very useful equipment when the dinghy is sick.

12.Conventional medications.

Yellow powder, internal medicine, external medicine - available in the fish market.

13.Landscaping stones (preferably available).

It is advisable to stabilize the water quality at a weak alkaline, such as goo, coral and seaside stones, but not volcanic rocks.

14.Artificial ornaments (preferably there).

It is advisable to use no paint to avoid formaldehyde poisoning.

15.Aquatic weeds (preferably there).

There are many aquatic plants suitable for sparkling waters.

16.Chemical reagents (not essential).

NO2 reagents, pH test strips or testers, optional, depending on individual needs.

17.Air pump (optional).

18.Timer (not required).

Dispensable, depending on personal needs.

Submarine fish do not have to be oxygenated. But pay attention to the breeding environment and methods. Submarine fish belongs to the quiet ornamental fish, afraid of pressure, when feeding, it is best to place some stones, caves or corals in the tank for the submarine to hide, give it a certain safe space, must not cause pressure, otherwise the state of the submarine fish will be quite bad, the color is dark, not lively at all;

Another point is that it is best to lay the bottom sand, the submarine fish like the environment with sand, the water quality does not fluctuate too much, the submarine fish is very sensitive, and this little guy does not like to move during the day, and starts to be active in the evening, very lively. When raising, the most important point is that you need to add salt, preferably coarse salt or sea salt, about grams per liter.

Feeding is also very important, submarine fish are carnivorous, never accept plants or dry feed, submarine fish like to eat frozen or fresh blood worms.

Earthworms, small shrimps, shellfish, crabs, squid, snails, etc., this is a big meal they like to eat, and they must be prepared when they are raised, but they can not be fed too much, they can be fed 1 or 2 times a day, and the stomach will be deflated after a few hours of eating, if it has been bulging, it is indigestion and constipation. So be sure to pay attention to feeding.

Look at your stocking density, use it if the density is large, don't use it if it's not big, how can there be an oxygen pump for fish in the wild, and you don't need to use it if the water body is wide, hehe.

The breeding density is small and can not be oxygenated, but it is necessary to change the water once every 6 to 7 days, replace two-thirds, and remind the submarine to eat live food, and it can not eat feed.

Personal experience.

You don't need to fight, the fish seller must be right.

The reason why the Nautilus can breathe freely is that the Nautilus will periodically surface to clear the surface of the acre, ventilate, answer and store some fresh air.

Of course, 20,000 miles under the sea is a science fiction book, and if it is a real submarine, the problem of oxygen supply must be considered. There are several ways:

1. The first submarine built by the Dutch was equipped with an oxygen cylinder, and the front of the cylinder was filled with compressed oxygen. There are also submersibles that use compressed or liquefied oxygen for short-term diving missions.

2. Peroxide oxygen supply. Capacity2Na2O2 + 2CO2 = 2Na2CO3 + O2. On the one hand, it can supply oxygen, and on the other hand, it can also capture carbon dioxide. But peroxides are dangerous.

3. Electrolysis of water. This solution is very power-intensive, and the hydrogen produced by the electrolysis of water and the carbon dioxide exhaled by humans need to be treated by specialized equipment.

Another is that the submarine is diving into the seawater, and the submarine is a very confined space, and there is no way to expose a little gap. In this way, it is impossible to go through the sea to ventilate, only through the help of the outside. At this time, the tools for oxygen production are used, such as oxygen medicine boards, and oxygen cylinders.

But the oxygen cylinder will not be used until the last minute when the diver takes it out.

With such advanced technology, the problem of oxygen is not a problem to maintain the internal machinery of the submarine and the breathing needs of personnel.

High-pressure oxygen cylinders, liquid oxygen, hydrogen peroxide, potassium permanganate and other physical and chemical products are provided by themselves, ventilation tubes, and one or several ventilation pipes can stretch out of the water surface.

The jet pump pushes and filters the water gill, filters the dissolved air in the water to obtain oxygen, and electrolyzes water to obtain oxygen.

AIP technology requires less oxygen and is powered by batteries.

Nuclear submarines have abundant nuclear power and can electrolyze water.

The snorkel can supply oxygen to the diesel engine of the diesel-electric submarine, and also allow the boat to ventilate.

Oxygen concentrators are used to maintain the internal machinery of the submarine and the breathing needs of personnel.

The problem of oxygen in the submarine can also allow the interior to ventilate.

The submarine is equipped with an oxygen concentrator for the use of all personnel.

The submarine must have its own oxygen tank inside.

The submarine must have its own oxygen tank inside, and oxygen is not a problem.

It has a dedicated thing.

With such advanced technology, the issue of oxygen is not a problem.

The chemical reaction produces oxygen, and KO2 potassium superoxide reacts with CO2 to produce oxygen. On the nuclear submarine there is a device for the manufacture of oxygen. The standard for oxygen concentration in the compartments of China's nuclear submarines is between 19% and 21%.

The main device responsible for the production of oxygen is the electrolysis of water oxygen production device, its basic principle is to use the ionization decomposition method to decompose water (H2O) into hydrogen (H) and oxygen (O), oxygen is transported to every corner of the cabin through the whole ship ventilation system, for personnel to breathe, and hydrogen is stored in hydrogen tanks and discharged from the ship at the right time. Because the electrolysis of water oxygen production device consumes a lot of electricity, it is not used to produce oxygen on conventional submarines. In some cases, nuclear submarines are equipped with supplemental or emergency oxygen production measures, such as oxygen regeneration plates, oxygen candles, and high-pressure oxygen cylinders.

The oxygen regeneration board is composed of sheets coated with sodium peroxide, which produces a chemical reaction when used, absorbs carbon dioxide and releases oxygen, and each box of medicine board can be used by about 40 people for about an hour. Oxygen candle is made of sodium chlorite and other chemicals to produce emergency oxygen, in case of crisis, lighting the oxygen candle can release pure oxygen, an oxygen candle can make 100 people breathe for about 1 hour, the United States early ballistic missile nuclear submarine is equipped with 200, the United Kingdom with 2 in each compartment.

How do submarines get oxygen in the deep sea? It turns out that there are these ways.

I know that there are liquid oxygen and peroxide liquid oxygen can directly provide oxygen, but the carbon dioxide exhaled by personnel cannot be discharged, and a large amount of oxygen is wasted when ventilating Peroxide can absorb the carbon dioxide exhaled by people and produce oxygen at the same time, which can maintain the air pressure of the submarine for a certain period of time, but solid peroxide is very dangerous.

The first is that there is air in it, and then it reacts with Na2O2 or something with carbon dioxide to form oxygen.

The world's first oxygen cylinder, which was a simple oxygen cylinder, is different now, and it uses a water electrolysis device in a submarine to produce oxygen, and the carbon dioxide produced by the breathing and movement of people in it is put into the seawater through a valve.

If the submarine has an AIP system, there is no need to ventilate.

Carbon dioxide is formed by the reaction of sodium peroxide.

Physics is stress!

Every 24 hours, the submarine surfaces to exchange gases with the atmosphere, and in the deep sea, the submarine also feeds exhaust gas into an oxygen generator that reacts with the chemicals in it to produce oxygen, which ensures the safety of the crew.

Na2O2 sodium peroxide is only used in emergency situations when the air supply is exhausted. Compressed air stored in gas cylinders is usually used after diving, and after depressurization, the crew can breathe. There are high-pressure, medium-pressure, and low-pressure air systems in the submarine. For details, please see the relevant military technology**.

1.With the same mass of reactants, sodium peroxide produces more oxygen and the reaction conditions are very peaceful.

2.Utilize carbon dioxide produced by human respiration. Submarine space is limited, which is important!!

Landlord: Are you satisfied?

Sodium peroxide is a yellowish solid, which can react with carbon dioxide to produce oxygen, and can also react with water to obtain oxygen, which is used as an oxygen generator in submarines for human breathing. Some submarines also have liquid oxygen in reserve. Someone proposed to plant flowers and plants in the submarine, hehe, no

Reasons:1The space on the submarine is extremely limited, there is not enough place to sleep, and there is no place to put flowers and plants.

2.Plants can only release oxygen when they are photosynthesizing, but they will consume oxygen and release carbon dioxide when they are respiring. There is not enough light on the submarine, and it is difficult to carry out more photosynthesis.

3.If it was feasible, it would have been popularized a long time ago, at least you can eat more vegetables, who likes to bring oxygen plates?!

Every 24 hours, the submarine surfaces to exchange gases with the atmosphere, and in the deep sea, the submarine also feeds exhaust gas into an oxygen generator that reacts with the chemicals in it to produce oxygen, which ensures the safety of the crew.