Jiangsu Hanpu Mechanical Technology Co., Ltd
Jiangsu Hanpu Mechanical Technology Co., Ltd
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Engineer-to-order MVR (Mechanical Vapor Recompression) evaporator purpose-built for wastewater concentration, brine volume reduction, and ZLD pre-crystallization. By mechanically recompressing secondary vapor to reuse its latent heat, the system achieves low OPEX, high recovery, and stable operation across variable industrial effluents.
Secondary vapor is mechanically compressed to raise its saturation temperature and reused as the primary heating medium. Tight control of pressure, ΔT, circulation rate, and vacuum conditions maintains heat-transfer coefficients while protecting quality of condensate for reuse.
Wetted parts in SS316L/duplex (Ti/Hastelloy on request). Drainable layouts, large clean-outs, CIP provision, and solvent/chemical-compatible elastomers selected per duty.
| Parameter | Typical Range* |
|---|---|
| Operation | Continuous, 24/7 |
| Shell pressure (vacuum) | ~6–25 kPa(abs), duty-dependent |
| Electric use (MVR) | ~15–40 kWh per ton of water evaporated |
| Fresh steam demand | Very low after start-up (backup/ancillary only) |
| Turndown | 50–100% with stable ΔT and quality |
| Materials | SS316L / duplex; Ti/Hastelloy on request |
*Actual performance depends on feed salinity/COD, fouling tendency, compression ratio, and heat-exchanger design.
Yes. Common flowsheets pair RO/NF pre-concentration with MVR for final concentration/crystallization before solids handling.
Through pretreatment, optimized ΔT/LMTD and velocity, antiscalant dosing, and scheduled CIP based on fouling indicators.
Low conductivity/TOC suitable for reuse after polishing; conductivity/TOC guards ensure compliance with site limits.