How many milliliters are in a thermos of water?

The capacity of a standard hot water bottle is usually 2 liters (that is, 2000 milliliters).

The hot water bottle is divided into two sizes, the small water bottle is about two liters, and the large water bottle is about four liters, the warmer is precisely the use of heat distribution is divided into the principle of conduction, convection, and radiation of the three. Warmer stopper is made of cork, and cork is not easy to heat conduction, as far as possible to prevent the occurrence of conduction

Warmer in the middle of a vacuum, as far as possible to prevent the occurrence of air convection; there is a warmer of the bottle coated into a silver-white color, you can make the heat is reflected back to the bottle and not radiate out.

Thermal insulation principle:

The function of the hot water bottle is to maintain the temperature of the hot water inside the bottle, cut off the heat exchange between the bottle and the bottle outside, so that the bottle "hot" out of the bottle not to, outside the bottle "cold" The hot water bottle is used to keep the temperature of the hot water inside the bottle. If you put a popsicle in a hot water bottle, the heat from the outside will not easily escape into the bottle, and the popsicle will not melt easily.

So the hot water bottle called thermos is scientific, because it can keep "hot", but also can keep "cold". The hot water bottle can keep warm, is determined by the construction characteristics of the hot water bottle gallbladder. Originally, the hot water bottle gallbladder consists of two layers of thin glass shell, two layers of shell between the air, and in the bottle gallbladder side of a thin layer of silver plating.

The hot water bottle gallon has a "body" than it is much thinner than the mouth of the bottle, the mouth of the bottle can be plugged with a cork. It is this structure makes the hot water bottle into a "hot heart, cold appearance" of the thermos.