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Introduction to the principle of vacuum bottle 2.0L
Release time:
2022-12-06 17:02
Since the vacuum bottle 2.0L is mainly used for hot water insulation in the family, it is also called a thermos bottle. The structure of the thermos bottle is not complicated.
The middle is a double-layer glass liner, which is vacuumed between the two layers and plated with silver or aluminum. The vacuum state can avoid heat convection. The glass itself is a poor conductor of heat, and the silver-plated glass can radiate the inside of the container outward. The heat energy is reflected back. Conversely, if a cold liquid is stored in the bottle, the bottle prevents heat from radiating from the outside into the bottle.
The bottle stopper of the vacuum bottle 2.0L is usually made of cork or plastic, both materials are not easy to conduct heat. The shell of the thermos bottle is made of bamboo, plastic, iron sheet, aluminum, stainless steel and other materials. There is a rubber gasket at the mouth of the thermos bottle and a bowl-shaped rubber seat at the bottom of the bottle. These are used to fix the glass liner to prevent collision with the shell. .
The worst part of the vacuum bottle 2.0L's heat preservation and cold preservation is around the neck of the bottle, where most of the heat circulates through conduction. Therefore, the bottleneck is always shortened as much as possible during manufacture. The larger the capacity and the smaller the bottle mouth, the better the heat preservation effect. Under normal circumstances, the cold drink in the bottle can be kept at about 4°C within 12 hours. Boiling water is around 60°C.
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