The hottest product of space packaging technology

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Space "packaging" high-tech products

there are more and more kinds of packaging on earth. From the initial simple function and single decoration to the current multi-function and exquisite printing, packaging has become an indispensable part of commodities. In addition to paying attention to new packaging technologies and new trends, we don't need to subject the samples to impact loads. Let's think about what kind of packaging will there be in remote space

the space suit is a real package for astronauts - it protects life, facilitates "storage and transportation" and is conducive to work. There are two kinds of space suits: pressurized suits (pressure suits) for use inside the warehouse and space suits for use outside the warehouse. Pressure suits are mainly used for lifesaving. When the cabin is damaged and the pressure drops suddenly, it can ensure that the human body enjoys the atmospheric pressure on the earth (101kpa), so that people will not die because of the extremely large travel of the rubber tensile tester when testing rubber materials, and the vacuum decompression will cause the blood to boil, and make up the oxygen supply system at the same time. Astronauts wear it on the body during the launch and approach of the spacecraft, and take it off for standby when entering orbit

what about food packaging, another kind of packaging used in space? We know that due to the phenomenon of weightlessness in space, human consumption in space is less than that on earth. The general requirements of space packaged food are: high nutritional value, reasonable collocation, small size. The existing production capacity of dawn is still in short supply, light and convenient to eat. Space packaged food mainly includes the following categories:

semi solid packaged food. This kind of food is packaged in a toothpaste type metal hose. When eating, insert a hard plastic tube and gently press the hose with your hand, and the food can enter your mouth. This kind of packaged food is convenient to eat in a weightless environment, and the food will not float in the air, so it is very safe and reliable. The types of food include minced meat, jam, caviar, etc. the nutritional composition is reasonable. It can also be eaten wearing pressure clothes, which is suitable for short-term Aerospace

canned viscous food. This kind of food is similar to the canned food we eat on earth. The meat and fish cut into small pieces can be cooked, and the soup is thickened with starch and then put into a jar for disinfection and sealing. It has high water content, delicious taste, convenient eating, safety and health, and will not float, so it is very popular with astronauts

dehydrated bagged food. After the food is cooked and dehydrated at low temperature and pressure, it is put into a plastic bag for sealed storage. When eating in space, add water with a water injection needle, and then eat in a few minutes. This kind of food is not convenient to eat and tastes bad

one mouthful packaged food. It is a space convenience food in weightlessness. It is very convenient to eat one piece at a time. Make food into round, square, triangle and other shapes on the ground, so as not to drop debris and float

packaged drinks. Drinking drinks in space is troublesome. If you drink it like on earth, because there is no pressure, the drink will not flow into your mouth. Generally, fruit or coffee and other beverage powder are packed in aluminum-plastic composite bags. When drinking in space, use a water injection needle to inject hot or cold water, and then insert a plastic pipe to drink. Ready made beverages include lemon juice, orange juice and coconut juice

there are many kinds of food in space. The staple foods are black bread, chicken noodles, fruit omelet, sausage pie, stewed rice, cream pudding, etc; Meat includes smoked turkey, roast steak, tuna, ham sausage, etc; Vegetables include green beans, asparagus, dried cauliflower, braised potatoes, etc; Fruits include bananas, pineapples, oranges, apples, etc., with a total of onehundredandtwohundred kinds. You can fix the plate on the dining table

let's take a look at the packaging of the astronaut "Snail House". In space flight, the small airtight cabin is the astronauts' home. There are seats, electronic instruments, life-saving equipment and life support system inside; The outer wall is made of metal materials, so there should be no peeling and scattering. It has the greenhouse environment of radiation protection, safety, room temperature and pressure. The closed cabin is just like a closed container, which contains all kinds of packaging containers, large and small

oxygen supply system - in order to ensure human life, there is a precise control system in the closed cabin to ensure the supply of 1 atmospheric pressure in the cabin. The supply of oxygen and nitrogen depends on high-pressure gaseous oxygen and nitrogen stored in high-pressure titanium alloy bottles, oxygen and nitrogen stored at low temperature, and the third method is chemical oxygen production with alkali metal peroxides

water supply system - water is the source of symbiosis. In the short-term space travel voyage, the clean water on the ground is stored in the light metal water tank, sealed and injected with a certain amount of nitrogen to form a positive pressure for water outlet. The daily water consumption standard for each person is 26.5kg (including 3.1kg of drinking water). Domestic water such as washing sewage and discharging urine is generally reused after regeneration, which can be described as "dripping water is as expensive as oil"

purification system - in the "Snail House" where astronauts live and work together, pollution is inevitable, mainly metabolic pollution, such as carbon dioxide, carbon monoxide, methanol, volatile fatty acids, hydrogen sulfide in gastrointestinal gas, methyl mercaptan, indole, amine in sweat, phenol, etc. Among them, carbon dioxide is the most, and the emission per person per day is 1kg. The purification method usually adopts canned lithium hydroxide to absorb and remove

temperature control system - in the sealed cabin, the metabolic heat production of human body, the heat dissipation of instrument operation, the solar energy from the outside, and the aerodynamic heat from the launch or return will raise the temperature in the cabin, so the circulating air temperature system must be used

humidity control - the exhaled gas and sweat from the human body in the cabin will increase the water vapor. Desiccant or condensation technology is often used to dehumidify, and these condensed water is stored for standby

garbage packaging - during space flight, the urine and urine excreted by astronauts must also be packaged. Urine enters the nylon bag through unidirectional cutting. During flight, urine enters the urine storage tank through the urine suction tube. The stored urine can be used as domestic water after treatment. Feces enter the toilet through the fecal suction pipe for sealing. In the weightless floating state, to "sit" on the toilet, you need to hold your legs with your hands

sleeping should also be packed - there is no difference between up and down in the space shuttle, so there is no "lying down" to sleep. In order to avoid floating around in the cabin during sleep, a cloth restraint bag is usually used to fix it on the bulkhead or hang it on the ceiling, and then people get in and sleep. Sleeping in space is often not easy. Because the sun will rise every 90 minutes, dazzling sunshine and scorching heat will make people uncomfortable

logistics and transportation packaging - at the international space station, the oxygen, nitrogen, water, food and other daily necessities needed by astronauts need to be tightly packed and transported from the earth

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