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Continuous Forced Circulation Brine Mvr Evaporator 440V For Seawater Desalination

Categories MVR Evaporator
Brand Name: HANPU
Model Number: MVR
Certification: CE,ISO9001
Place of Origin: Jiangsu,China
MOQ: 1 set
Price: 300,000USD~2,500,000USD/SET
Payment Terms: T/T,L/C,D/A,D/P,Western Union
Supply Ability: 1 set/month
Delivery Time: 90 days
Packaging Details: Bulk with strong strap
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Continuous Forced Circulation Brine Mvr Evaporator 440V For Seawater Desalination

Continuous Forced Circulation Brine MVR Evaporator 440V For Seawater Desalination
Continuous 440V forced-circulation MVR brine evaporator for seawater desalination and SWRO brine concentration

Engineer-to-order MVR (Mechanical Vapor Recompression) evaporator with forced circulation, designed for continuous seawater/brine desalination and SWRO brine concentration. Tuned for 440 V low-voltage grids (50/60 Hz configurable), it recycles latent heat via mechanical recompression to achieve high energy efficiency, stable throughput, and reduced discharge volumes.

Key Benefits
  • Higher water recovery: Concentrates SWRO brine to boost overall desalination recovery and cut blowdown.
  • Energy savings: Electric-duty MVR minimizes fresh steam after start-up, lowering OPEX and CO₂ footprint.
  • Scaling mitigation: Forced circulation maintains high shear and stable ΔT/LMTD to limit CaSO₄/CaCO₃ scaling.
  • Corrosion resilience: SS316L/duplex/Ti options for chloride-rich feeds; drainable hygienic layouts.
  • Continuous automation: PLC/HMI recipes, alarms, historian, remote support for 24/7 uptime.
Process & Thermal Economy

Secondary vapor is mechanically compressed to raise saturation temperature and reused as the heating medium. High-velocity forced circulation stabilizes heat transfer on saline feeds. Tight control of pressure, ΔT, and residence time enables gentle, efficient evaporation with consistent condensate quality.

Electrical Integration — 440V

LV integration for 440 V (50/60 Hz), with VFD-driven compressor/pumps, soft-start, and optional AFE/harmonic filters for grid compliance. MV step-up options available on request.

Materials & Cleanability

Wetted parts in SS316L/duplex or titanium for chloride service; anti-scale dosing, validated CIP, sloped piping, and large clean-outs support long campaigns and fast turnarounds.

Process Overview — Seawater / SWRO Brine
Flow: intake/pretreatment → MVR evaporation (forced circulation) → condensate polishing → concentrated brine handling
  • Pretreatment: screening/filtration, antiscalant/pH trim to protect exchangers and compressor.
  • MVR evaporation (vacuum): compressor discharge pressure sets ΔT; shell vacuum defines boiling point.
  • Condensate polishing: optional filters/RO/UV to meet reuse or potable/industrial water specs.
  • Concentrate routing: to crystallizer or regulated discharge; integrates with ZLD where required.
  • Automation: recipes for seasonal salinity/temperature shifts; alarm interlocks and remote diagnostics.
Key Components
  • MVR evaporator (forced-circulation) with circulation pump and vapor–liquid separator
  • Mechanical vapor compressor (turbo/Roots) with VFD for ΔT/throughput control
  • Main heater, preheaters, condenser, vacuum/NCG handling skid
  • PLC/HMI/SCADA; instruments (T/P/flow/cond/level); historian & remote access
  • CIP skid; anti-scale dosing; optional condensate polishing filters/RO/UV
Performance & Sizing
ParameterTypical Range*
Power supply440 V LV, 50/60 Hz (site-configurable)
OperationContinuous, 24/7
Electric use (MVR)~15–40 kWh per ton of water evaporated (duty/CR dependent)
Shell pressure (vacuum)~6–25 kPa(abs), feed/ΔT dependent
Condensate qualityLow conductivity; polish to reuse/potable/industrial spec
MaterialsSS316L / duplex / Ti; Hastelloy on request

*Performance depends on feed salinity/temperature, fouling tendency, compression ratio, and heat-transfer design.

FAQ
Can it integrate after SWRO to raise recovery?

Yes. As a brine concentrator, MVR increases overall plant recovery and reduces brine volume for discharge or ZLD.

How is scaling controlled with seawater brine?

Through pretreatment, optimized ΔT/LMTD and velocity, antiscalant dosing, and scheduled CIP based on fouling indicators.

Is 440 V mandatory?

No. Systems can be configured for 380–480 V LV or MV (3.3–11 kV) depending on site power and compressor sizing.

Application
Applications: seawater desalination, SWRO brine concentration, and high-recovery water reuse
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