SED - Spray Engineering Devices Ltd Limited
SED - Spray Engineering Devices Ltd Limited
Falling Film Plate Evaporator

Plate Type Falling Film Evaporator (PTFFE)

A Plate Type Falling Film Evaporator (PTFFE) is a compact, modular and highly energy-efficient heat exchange system accommodated in minimum footprint area and widely used for concentrating liquids in industries such as sugar, food processing, chemicals, wastewater etc.

When integrated with Mechanical Vapor Recompression (MVR), PTFFEs significantly reduce energy consumption and operational costs by enabling evaporation at minimal temperature differences often as low as 1°C.

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Sugar Factory

Working Principle

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Feed Distribution

The liquid is evenly distributed across the top of the plate pack bunch through SED’s innovative designed distributor forming a thin falling film over the heating surface.

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Heat Transfer

Heating media (typically low-pressure vapor or steam) flows horizontally across the plates, while the process fluid flows vertically downward where specially designed patterns enhance turbulence and maximize heat transfer coefficient.

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Evaporation Terminology

As the film descends, heat is transferred through the plate walls, causing rapid evaporation of water or solvents from the liquid.

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MVR Integration

Furthermore, integration with MVR technology eliminates external steam requirement and enables boiler-less operation.

Why It’sNeeded?

01

Highly Energy Efficient: Operates with minimal temperature difference (~1°C), significantly lowering steam consumption.


02

Compact Footprint: Achieves a large heating surface area within a minimal footprint, and is further scalable, reducing space and structural requirements for installation.


03

Short Residence Time: Minimizes heat exposure for sensitive liquids, preserving product quality.


04

Easy Installation: Easy transport and quick assembly with a compact, self-supported design that requires minimal civil work, structure, and erection time.


05

Automated Control: Advanced automation enables complete equipment control, preventive maintenance alarms, and enhanced safety measures, including CIP (Cleaning-In-Place), from the DCS (Distributed Control System) ith no manual intervention.


06

24x7 Remote Operational Support: Continuous online monitoring, assistance, and control to ensure uninterrupted performance, quick troubleshooting, and optimal operation of equipment from anywhere.


Salient Features

Salient Features
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Up to 3x higher Heat Transfer Coefficient (HTC) compared to traditional tubular falling film evaporators.

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Multi-effects can be accommodated in a single modular shell, simplifying design and reducing piping complexity.

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Specially pressed and welded plate packs offer superior durability and thermal performance.

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For challenging liquids, a wide range of material options - such as SS304, SS316, and Titanium - are available to ensure compatibility and durability.

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Ideal for greenfield and brownfield projects looking to boost profitability through energy optimization.

Revolutionizing Efficiency,Setting New Standards

Step into the future of evaporation technology with SEDL's Falling Film Plate Evaporator. Discover how our cutting-edge design and commitment to excellence can revolutionize your operations, boosting efficiency and sustainability.