(also weighing reboiler) as the name suggests is to make the liquid again vaporization. Its structure is similar to that of a condenser, but one is used to cool down.
The reboiler is combined with a fractionating Tower
: the reboiler is a special Heat Exchanger
that can exchange heat and have a vaporization space at the same time. The material level of the reboiler and the liquid level of the fractionating tower are at the same height. From the bottom of the tower to provide liquid phase into the reboiler. The liquid phase of the 25-30% is normally vaporized in the reboiler. The vaporized two-phase flow was sent back to the tower, return to the tower in the gas phase component upward through the tray, and the liquid components fall back to the bottom of the tower.
The material is heated in the reboiler expansion and vaporization density decreases, thus leaving vaporization space, smooth return to the tower, the tower of the return of gas-liquid two-phase flow, gas and liquid through the tray, fell to the bottom of the tower. Due to the role of static pressure difference, the bottom of the tower will continue to increase the evaporation of the liquid level.