HRS- ROTEX SeriesRotating Scraped Surface Heat Exchangers

INNOVATIVE TECHNOLOGY FOR CHALLENGING HEAT TRANSFER APPLICATIONS

HRS-ROTEX

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The HRS-Rotex series of heat exchangers have been developed for more challenging heat transfer applications. Each inner tube contains a scraper bar which rotates at high speed and is fitted with a helical screw, which enhances product flow through the tubes and minimizes pressure drop.

The continuous scraping action enables mixing of highly viscous products whilst also eliminating fouling on the inner tube wall, ensuring the heat transfer area is clean at all times. This mixing action, combined with the helical screw greatly increases heat transfer performance.

OPERATING PRINCIPLES:

RodSupport

ScraperBlade

Rotation:Scrapers keep heat transfer walls clean

Helix Mixing Spiral:Reduces pressure drop

Product Flow:Reduced fouling, good product identity and reduced pressure drop

ProductHeader

GearHeader

GearboxMotor

SealingSystem

Product

Service

Bellows

RemovableTubes

Shell

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HRS-ROTEX FEATURES & NEW TECHNOLOGY

HRS-ROTEX SEALING SYSTEM

Spiral blade and scraper design reduces pressure resulting in lower power consumption and energy saving operation.

Spiral blade on each shaft helps to guarantee parallel and continuous flow rate in each tube.

Smaller footprint required for large heat transfer area, compared to existing technology.

Unique gearbox design reduces noise level.

Unique sealing system minimises maintenance.

Multi tubes can be fitted into a single shell giving more area for heat transfer allowing easy expansion on size.

Innovative design of scrapers for improved mixing.

The HRS-Rotex has been developed to work with a single tube or multi tubes inside one heat exchanger shell. Using a single drive motor multiple scraper rods are rotated allowing a large scraped surface area in one HRS-Rotex.

Major advantages of the HRS-Rotex (Pat. Pending) compared to existing technology are:

The HRS-Rotex is fitted with a unique sealing system which enables the removal of individual tubes, resulting in easy servicing and replacement.

This unique feature leads to a significant reduction in operating costs.

Increased turbulence further improves heat transfer rate.

The HRS-Rotex easily pumps products of high viscosity, with reduced back pressure.

HRS-ROTEX

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TECHNICAL INFORMATION

APPLICATIONS

HRS-ROTEX MODEL TYPESDIMENSIONS

OPERATING PARAMETERS

Multi Tube

Vertical

Single

Viscous Aseptic Aerated Evaporation

Sensitive Particulate Crystallising Sticky

Lt Lm

DESIGN CONDITIONS:Service Side: 185°C / 7.4 bar.gProduct Side: 185°C / 7.4 bar.g

DESIGN CONDITIONS:External: PolishedProduct Side: <0.8 microns

CONNECTIONS:Service Side: Flanged / ClampProduct Side: Clamp

DESIGN CONDITIONS:Service Side: AISI 304 / 316LProduct Side: AISI 316L

MODEL TUBESLt Lm VOLUME POWER SURFACE AREA

mm mm Litres kW m²R1/1 1 1088 635 3.9 3 0.35R1/2 1 2011 635 7.8 3 0.70R3/1 3 1088 635 20.6 7.5 1.05R3/2 3 2011 635 41.2 7.5 2.10R6/1 6 1088 850 36.2 15 2.10R6/2 6 2011 850 72.4 15 4.20

HRS CORE PRODUCT RANGE

Shell & Tube Plate Heat Exchanger Piston Pump Unicus

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HRS UK +44 1923 232 335 HRS Spain +34 968 676 157

HRS USA +1 770 726 5340

HRS Malaysia +60 3 5888 9933

HRS India+91 20 2566 3581

HRS Australia & New Zealand +64 9 889 6045