Many people use vacuum flasks. Do you know what the principle is here?Here is a summary of the working principle of the vacuum thermos bottle.

1. bottle body closed structure The bottle body of the thermos bottle adopts a double-layer structure, and the vacuum of the bottle bladder and the bottle body can block the transfer of heat. And whether the sealing performance of the thermos bottle is good, it also plays a very important role in the insulation effect. The better the seal, the harder it is for heat to transfer, resulting in better insulation.

2. Double-layer stainless steel vacuum structure The vacuum does not transmit heat, which is equivalent to cutting off the heat conduction medium. The higher the vacuum degree, the better the thermal insulation effect. The vacuuming technology is divided into two types: tail vacuuming and tailless vacuuming. Now most vacuum bottle manufacturers use tailless vacuuming because this technology is more advanced.

3. The inner tank is copper-plated or silver-plated. The inner tank is copper-plated or silver-plated, which can effectively form a layer of heat insulation net in the inner tank of the thermos, so that copper plating can effectively reduce the heat lost through radiation by reflecting heat radiation. . The thermos bottle is generally a water container made of ceramic or stainless steel plus a vacuum layer. The top has a cover and is tightly sealed. The vacuum insulation layer can delay the heat dissipation of liquids such as water inside to achieve the purpose of heat preservation.

The relevant knowledge of vacuum insulated bottles is here. I believe that after reading this article on the principle of vacuum insulated bottles, you will know why vacuum insulated bottles have such a good thermal insulation effect.

Thank you for reading