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Pillow Plate SS MVR Evaporator Laser Welding Mechanical Vapor Recompression

Pillow Plate SS MVR Evaporator — Laser Welding · Mechanical Vapor Recompression

Stainless steel pillow plate MVR evaporator with laser-welded plates for high-efficiency evaporation

Laser-welded stainless steel pillow plates form the compact heating surface of this MVR (Mechanical Vapor Recompression) evaporator. The wide, turbulence-promoting channels of pillow plates combined with recompressed vapor duty deliver high heat-transfer efficiency, low ΔT vacuum evaporation, and reduced energy consumption for food, chemical, and environmental applications.

Key Benefits

Energy savings: MVR recycles latent heat; minimal fresh steam after start-up.
Efficient heat transfer: Laser-welded pillow plates enhance turbulence and coefficients at low ΔT.
Fouling tolerance: Wide channels handle particulates/viscosity better than narrow-gap plate stacks.
Hygienic & durable: SS304/SS316L wetted parts, smooth finishes, drainable geometry, CIP-ready.
Modular scaling: Add/remove plate banks to match evaporation load or future expansion.

Process & Thermal Economy

Secondary vapor is mechanically compressed to raise saturation temperature and reused as the heating medium. Feed forms a controlled thin film over pillow plates under vacuum; tight control of ΔT/LMTD and residence time preserves product quality while maximizing heat-transfer performance.

Materials & Construction

Laser-welded SS304/SS316L pillow plates and headers; duplex/Ti/Hastelloy optional for corrosive duties. Sanitary finishes, orbital-welded manifolds, and validated CIP programs available for food-grade compliance.

Process Overview — Pillow Plate MVR

Flow: feed conditioning → pillow plate falling film evaporation (vacuum) → MVR compression → condensate polishing → concentrate handling

Feed conditioning: screening/filtration, pH trim/antiscalant as required.
Falling film on pillow plates: uniform distribution; low ΔT for gentle evaporation.
MVR compression: VFD-driven compressor sets discharge pressure and capacity.
Condensate polishing: optional filters/RO/AC for reuse or compliant discharge.
Concentrate routing: to crystallizer/centrifuge/dryer or upstream recycle per flowsheet.

Key Components

Laser-welded SS pillow plate evaporator stack with distributors/collectors
MVR mechanical vapor compressor (turbo/Roots) with VFD
Vapor–liquid separator, condenser, vacuum/NCG handling skid
Preheaters/heat-recovery HX; PLC/HMI/SCADA with historian
CIP skid; anti-scale dosing; conductivity/level/pressure/flow instrumentation

Performance & Sizing

Parameter	Typical Range*
Operation	Continuous, vacuum duty
Electric use (MVR)	~15–40 kWh per ton of water evaporated (duty/CR dependent)
Film ΔT	Low for heat-sensitive products; set via compressor discharge pressure
Steam demand	Very low after start-up (backup/ancillary only)
Materials	SS304 / SS316L standard; duplex/Ti/Hastelloy optional

*Performance depends on feed chemistry/viscosity, fouling tendency, compression ratio, and plate geometry.

FAQ

When choose pillow plate over shell-and-tube?

Pillow plates provide compact area density, wide channels, and excellent low-ΔT performance for hygienic or moderate-fouling duties.

Can the unit be upgraded later?

Yes. Start with TVR or single-effect duty and upgrade to full MVR or hybrid energy-recovery as loads grow.

Is SS304 enough for our chemistry?

For chloride or aggressive feeds, we recommend SS316L, duplex, or titanium depending on corrosion analysis.

Application

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Categories	MVR Evaporator
Brand Name:	HANPU
Model Number:	MVR
Certification:	CE,ISO9001
Place of Origin:	Jiangsu，China
MOQ:	1 set
Price:	100,000USD~1,000,000USD/SET
Payment Terms:	T/T,L/C,D/A,D/P,Western Union
Supply Ability:	1 set/ 90days
Delivery Time:	90 days
Packaging Details:	Bulk with strap