SED - Spray Engineering Devices Ltd Limited
Direct Contact Heater

Efficient. Compact. Engineered for Maximum Thermal Performance.

SED’s Direct Contact Heater (DCH) is designed to heat process fluids to nearly the same temperature as the heating vapor, achieving almost zero approach. By utilizing lower-grade heat and improving overall energy efficiency, DCH delivers superior heating performance with minimal maintenance. Its continuous operation, compact footprint, and high energy efficiency make it an ideal solution for modern sugar processing plants.

Sugar Mill Modern
Sugar Factory

How It Works

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Direct Contact Heating

Juice enters the DCH via the Juice Inlet and encounters available vapors from the Vapor Inlet. Direct contact between the two streams achieves efficient heat transfer with minimal temperature difference.

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Flow Guidance & Circulation

Top and bottom baffles guide the flow of juice and vapor, ensuring maximum contact and improved heat transfer. The Bottom Annulus enhances circulation for consistent heating.

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Non-Condensable Gas Removal

NCGs are efficiently extracted through the NCG Line to maintain operational efficiency and prevent buildup.

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Contaminant Removal

The Catch-All Arrangement captures solids or other impurities, preserving juice quality and maintaining smooth operation.

Key Advantages

01

Minimal Temperature Approach

Achieves a temperature difference as low as 0–1°C between heating vapor and process fluid, resulting in higher final product temperatures.

02

Continuous Operation

Designed for uninterrupted operation without the need for frequent cleaning.

03

Reduced Retention Time

Minimizes sugar losses and improves overall process efficiency.

04

Zero Head Loss

Lowers pump power requirements, contributing to reduced energy consumption.

05

Low Maintenance

Minimal cleaning requirements ensure low operational costs and easy integration into sugar plant operations.

Salient Design Features

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Corrugated shell and rib-supported deflectors with inbuilt entrainment separator

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High turndown ratio (operate efficiency between 30% - 100% of design flow)

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Lightweight structural layout with minimal floor space requirement

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Effective NCG removal via counter-flow design and ample vapor space

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Suitable for both pressurized and sub-atmospheric vapor conditions

Sugar Factory
Sugar Factory

Applications Across the Sugar Industry

SED’s Direct Contact Heater is ideal for:

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Raw Sugar Mills

Efficient preheating of juice for evaporation.

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Refineries

High thermal efficiency with zero maintenance.

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Multi-Effect Evaporation Systems

Compact design for energy-efficient integration.

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Large-Capacity Plants

Continuous operation with minimal downtime

Why Partner with SED?

SED’s DCH combines advanced thermal engineering, compact design, and energy-efficient operation to deliver measurable improvements in process efficiency and operational reliability. With real-world performance, continuous operation, and low maintenance, SED ensures your heat exchange processes are optimized for modern sugar production.

Frequently Asked Questions

Revolutionizing Heat Exchange. Setting New Standards.

Optimize thermal efficiency, reduce energy consumption, and ensure uninterrupted operation with SED’s Direct Contact Heater — engineered for compact design, continuous performance, and zero maintenance.

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