Welded single-effect vacuum evaporator with forced circulation engineered for industrial wastewater reduction, brine concentration, and ZLD pre-concentration. Operating under vacuum lowers boiling temperature, while high-velocity circulation improves heat transfer and mitigates scaling—delivering stable throughput, robust operability, and straightforward maintenance.

• Reliable with difficult feeds: Forced circulation tolerates suspended solids and high salinity.
• Lower-temperature duty: Vacuum operation protects heat-sensitive streams and reduces fouling risk.
• Simple & maintainable: Welded construction, clean flow paths, and wide operating window.
• Upgrade-ready: Optional TVR/heat-recovery to boost steam economy; easy integration into ZLD trains.
• Consistent condensate: Polishing options support reuse or compliant discharge.

Live steam heats the circulating liquor in the main heater; vapor generated in the separator is condensed under vacuum. High circulation rates stabilize ΔT/LMTD, limit deposition on tubes, and keep capacity steady across varying wastewater chemistries. Optional TVR (thermo-vapor recompression) can improve thermal efficiency.

PLC/HMI with closed-loop control of level, pressure, ΔT, and conductivity; interlocks for vacuum/NCG handling, pumps, heaters, and condensate quality guard. Alarm/event historian and remote diagnostics available.

Wetted parts in SS316L/duplex (Ti/Hastelloy optional). Large clean-outs, removable heads, CIP provision, and anti-scale dosing support long campaigns and fast turnarounds.

• Feed conditioning: screening/filtration, softening or pH trim to reduce scaling/corrosion.
• Evaporation under vacuum: heater + separator with high-velocity loop for stable heat transfer.
• Condensate management: polishing (filters/RO/AC) to meet reuse/discharge limits.
• Concentrate routing: to crystallizer/centrifuge/dryer or upstream recycle per ZLD flowsheet.
• Automation: start/stop recipes, load following, and CIP sequences.

• Evaporator body (welded) with forced-circulation pump and vapor–liquid separator
• Main heater, preheater, condenser, vacuum/NCG handling skid
• Instrumentation (T/P/flow/cond/level) with PLC/HMI/SCADA
• CIP skid and anti-scale dosing system
• Optional: TVR ejector, heat-recovery exchangers, condensate polishing filters/RO

*Actual performance depends on feed chemistry, fouling tendency, and heat-exchange design.