1. Principle of Insulated Bottle
A thermos is a protective device used to store hot or cold water by maintaining high or low temperatures. The principle of a thermos is to reduce heat exchange with the outside world, that is, to reduce heat conduction, in order to ensure that the stored hot or cold water can maintain a stable temperature.
2. Structure of the interlayer inside the thermos bottle
The internal structure of a thermos bottle consists of an inner liner, an outer shell, and a middle layer. The interior of the interlayer is usually coated with a layer of silver white metal material. Many people mistakenly believe that it is a metal, but in fact it is composed of a vacuum layer.
3. The role of the vacuum layer
There is a vacuum layer coated inside the interlayer, as vacuum is the best insulator and can reduce heat conduction. The vacuum layer can reduce the modes of heat transfer: thermal conduction, thermal radiation, and thermal convection. Meanwhile, due to the silver white coating inside the interlayer, silver has excellent thermal conductivity and can effectively resist the penetration of external heat, ensuring the taste and temperature of food or drinks.
4. The influence of structure on insulation effect
In addition to the vacuum layer, other structures inside the thermos can also affect its insulation effect. For example, factors such as the lining material, shell thickness, and sealing structure of a thermos can all affect the insulation effect. For the selection of thermos bottles, it is necessary to consider these factors comprehensively to ensure the selection of high-quality thermos bottles.
5. Conclusion
The silver white metal inside the insulation bottle liner is actually composed of a vacuum layer. The vacuum layer can prevent the conduction of heat and cold, ensuring the taste and temperature of food or drinks. When choosing a thermos bottle, it is necessary to comprehensively consider factors such as the lining material, shell thickness, and interlayer structure of the thermos bottle, and choose high-quality products.
