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External heater for forced-circulation evaporation
Add heat under pressure. Define its duty within the complete food-concentration circuit.
In the common non-boiling heater arrangement, pressure in the circuit limits boiling within the heater. Heat is added before the liquid enters the flash zone. Tube or plate geometry is selected from product behaviour and pressure-drop constraints, rather than the circulation label alone.
Enquire about this moduleInput, output and connection boundary
| Input | Output | Interfaces |
|---|---|---|
| Pumped process liquid and a separate heating medium | Heated liquid returning toward the lower-pressure separation vessel | Pump discharge, heating-medium supply, condensate removal, circulation return |
Specification inputs
| Parameter | Condition to state |
|---|---|
| Heat-transfer duty | kW with inlet/outlet temperatures, utility condition and fouling allowance. |
| Heating surface | Area and passage geometry together with liquid-side flow and pressure loss. |
| Product properties | Viscosity and boiling-point elevation across the intended concentration path. |
| Construction | Materials, design pressure/temperature and inspection method confirmed for the project. |
Maintenance access
Review removable access, inspection clearance, drainage and the ability to detect deposits. Record production performance before and after a validated clean; a higher utility temperature is not a substitute for understanding lost heat transfer.
Selection limit
Suppressing boiling in the heater does not guarantee zero fouling. Thermal degradation, precipitation, deposits and dead regions still require evaluation.