Series connection: when the air temperature is required to be high, the series connection mode is mostly selected. When in series, the air temperature can reach about 80 ℃ to 130 ℃. The series mode is mostly used in high-temperature drying, and its object connection mode is as follows:
However, in practical application, in order to achieve appropriate air temperature and volume, it is more suitable for the combination of series and parallel：
The design allows the heating medium to pass directly inside the vacuum tube, and the fluid can directly exchange heat with the inner wall of the vacuum tube. At the same time, there is a turbulence structure inside, so that the medium can fully absorb heat when passing through. The structure greatly improves the efficiency of the vacuum tube and subverts the traditional use of the vacuum tube. The inner diameter of the double-way pipe is large, and the air volume and temperature we need can be achieved through series and parallel connection.
