Home / Project engineering
Flash separation vessel for forced-circulation evaporation
Release vapour and retain liquid. Define its duty within the complete food-concentration circuit.
MODULE 03
The pressure change at the separator enables part of the heated liquid to flash. The vessel provides space for vapour disengagement while maintaining liquid inventory for recirculation. Its level and geometry therefore affect both separation and pump suction.
Enquire about this moduleInput, output and connection boundary
| Input | Output | Interfaces |
|---|---|---|
| Heated liquid from the circulation circuit | Water vapour overhead; concentrated liquid in the circulating inventory | Heater return, circulation suction, vapour outlet, level instruments and discharge take-off |
Specification inputs
| Parameter | Condition to state |
|---|---|
| Flash condition | Product temperature and absolute vessel pressure, with boiling-point elevation. |
| Vapour load | Actual vapour volume at operating conditions, plus carry-over and foam behaviour. |
| Liquid inventory | Working volume, level range and implications for thermal residence history. |
| Nozzle arrangement | Return entry, suction, discharge and cleanability considered together. |
Maintenance access
Identify access to the vapour zone and liquid-contact surfaces. Inspect deposits at the return entry and around internals. Agree a controlled drainage and isolation method before maintenance.
Selection limit
A larger vessel may provide more separation space but also changes hold-up. Evaluate the complete residence-time distribution for sensitive food products.