Flash Tank - BÖWE M21 Instruction Manual

7. Functional Units

7.19.1 Flash Tank

The condensate from the first fraction and then from the second fraction are recovered from the
distillation over the flash tank. During the distillation process, the flash tank is under the same vacuum as
the distillation system. The condensate from the first fraction (low-boiling solvents) runs from the
condenser to the flash tank. To drain the distillation system, the flash tank is disconnected and vented.
Draining is done to the extraction tank.
The condensate of the second fraction (cleaning solvent) is extracted in just the same way, but is drained
into the water separator. The level probe in the flash tank controls the draining.
1 Flash tank
2 Thermal sensor
3 Level sensor, overfill sensor
4 Steam trap, second fraction
5 Condenser
6 Venting, flash tank
42
7 Evacuation of flash tank
8 Steam trap, first fraction (low-boiling solvents)
A – Discharge, first fraction to extraction tank
B – Discharge, second fraction to water
separator
C – Overflow to distillation
D – Suction line to vacuum pump
7.
707763-04-0
M21-M26-M30