What is the difference between vacuum thermos with hot water bottle?
Two square meters vacuum glass cavity volume is only the size of a ping pong ball. Even after vacuum vacuum of the vacuum flask glass touch broken, filling the air volume is small, do not form air impact, glass plate surface crack of even, also won't produce blowout and big noise.
Two bottles of large difference is almost a cm in diameter, so the inner cavity volume is larger, a flight into the vacuum cavity, due to the effect of atmospheric pressure, bravery inside and outside of the glass shell pressure. When bile touch broken, a lot of air in an instant into the cavity, the air impact noise. The glass shell burst causing and two pieces of glass vacuum vacuum of the vacuum flask glass gap is only 0.1 ~ 0.2 mm,
The working principle of vacuum thermos with thermos is the same, but the structure there is a big difference between the two. Thermos of bladder is essentially large sets of small bottle in the bottle, two bottles of mouth sealed to form a cavity,
