Breathing: gas varies with depth
The air that ordinary people breathe is a mixture of nitrogen and oxygen, and the breathing process is an easy behavior with almost no feeling. Saturated divers’ breathing is very different from ordinary people. Hu Jian, head of the 300-meter saturated diving team, said that the gas they breathe is a mixture of helium and oxygen. He has more helium and less oxygen. The proportion of mixing varies with sea depth. The diver breathes this gas in both the living quarters and the bottom of the sea. It is not difficult to breathe, but the sound becomes like a duck.
Pressure: it’s hard to lift your hand
The pressure that ordinary people are subjected to is 1 atmosphere. In a sea 300 meters deep, the pressure on the diver is 31 atmospheres, 30 times more than the average person. Hu Jian said: “Under this pressure, people feel like they are squeezed. The bones and bones are very tightly attached. It is very laborious to lift your hands and move your feet.”
Eat: the hoe must also chew
Divers eat differently than ordinary people. A dedicated chef cooks for them, and the food is fed through a cylindrical hole in the living compartment. Divers can’t eat hard food, they will damage their teeth; they can’t eat foods that make people easy to fart; they can’t eat radish, leeks and other heavy foods, so as not to pollute the narrow environment; rice and steamed bread are squeezed and stick to the teeth. It’s hard to get, you need to chew it hard to eat it; the taste becomes dull, the food can’t eat salty taste; you should eat more high-calorie food such as steak, chicken, duck and fish.
Sleeping: not to turn off the lights for safety
Six people are crowded in a living cabin that is 11 meters long, 3.8 meters wide and 3.5 meters high. There are 6 beds in the cabin, the middle aisle is less than 50 cm wide and the bed is 90 cm wide. There is no difference between day and night, and you can’t turn off the lights when you sleep. It is convenient for the monitoring room on the ground to monitor the life safety of the diver at any time. They are more than 12 hours a day because they are prone to fatigue. In addition to sleeping and working in the sea, the rest of the time can only read the book.
Toilet: I want to report to the toilet
Divers use toilets and baths in the living quarters, report to the ground monitoring personnel before going to the toilet or bathing, and report when the toilet is finished. The ground monitoring personnel issued instructions to allow the diver to flush the toilet and close the drain valve. The ground crew then opens another valve to drain the dirt into a cylinder. The purpose of this is to ensure that there is absolutely no air leak in the living quarters.
The same is true for bathing. The valves in the living compartment and the valves outside the living compartment, the two valves can only have one movement, and must be closed and the other open.
Clothes: hot water pipes everywhere
The living cabin is kept at a temperature of 38 ° C to 40 ° C, and the diver wears loose cotton clothes such as short sleeves in the cabin. When working in the sea, it is worn by “hot water clothes”: water pipes with hot water are scattered around the clothes, and the divers are heated constantly to resist the cold of the sea water, and to supplement the heat taken by the diver to breathe the air. Keep the diver’s normal body temperature.