Alfa Laval WideGap gasketed plate-and-frame heat exchangers are suitable for fibrous fluids and for fluids containing coarse particles. Typical applications for Alfa Laval WideGap heat exchangers are sugar, bioethanol and pulp and paper processes. Depending on the duty, WideGap heat exchangers can be configured either with wide-wide or wide-narrow channels. This makes the units suitable for heating, cooling and interchanging duties.
Alfa Laval WideGap is tailor-made for handling fibrous fluids and for fluids containing coarse particles. The smooth port design ensures that fibres don’t get stuck at the entrance.
Equipped with well-designed features, Alfa Laval WideGap heat exchangers are easy to maintain and have a long service life. Some of the features available include:
- ClipGrip™ gasket – a glue free gasket with superior alignment that ensures a perfect seal and trouble-free maintenance.
- Glued gasket – a two-component, oven-cured epoxy glue keeps the gasket in place during any possible cleaning condition.
Additionally, the pressure plate roller, the bearing boxes on tightening bolts, and the 5 point alignment system with reinforced hangers make opening and closing the heat exchanger quick and easy without the need for heavy tools or the risk of damaging the plates.
Alfa Laval WideGap is quick and easy to modify if process parameters change. Our team’s expertise and the availability of parts bring you peace of mind.
Peace of mind
Alfa Laval global service network is never far away.
Features and benefits
- Maximum uptime for fouling applications
- High energy efficiency
- Flexible configuration
- High serviceability
- Access to Alfa Laval’s global service network
How it works
The heat transfer area of a gasketed plate-and-frame heat exchanger consists of a series of corrugated plates, assembled between the frame and pressure plates, which retain the design pressure. The sealing between the plates is made of gaskets. For the highest thermal performance and to enable a very close temperature approach, fluids normally run counter-currently through the heat exchanger. The WideGap heat exchanger is tailor-made to handle fibrous fluids, highly viscous fluids, and fluids containing coarse particles. Because of the plate pattern and pressing depth design, these fluids flow easily through the heat exchanger.
High flow turbulence between plates results in higher heat transfer; however, the consequence is pressure drop. Our thermal design engineers will help you design and select the model and configuration that is suitable for your application needs while delivering maximum thermal performance and minimizing pressure drop.
The WideGap heat exchanger can be configured in many ways. The channels can have either a wide/wide gap or a wide/narrow gap with different channel gaps. WideGap heat exchangers are usually configured as multi-pass in order to ensure enough turbulence.
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Optimizing bioethanol production with gasketed plate heat exchangers
When operation and maintenance costs of its distillation column heat exchangers began to skyrocket, bioethanol producer Ethanol Energy turned to Alfa Laval. An equipment audit revealed the heat exchanger channels were too narrow, unable to handle the fibrous liquid with high content of dried distiller grain with solubles. Replacing the old units with three Alfa Laval WideGap gasketed plate-and-frame heat exchangers enabled Ethanol Energy to maximize uptime, minimize cleaning frequency intervals and costs, and increase productivity, product quality and yield.
Midwest ethanol producer realizes multiple benefits with Alfa Laval WideGap
Situated at the cross-roads of two rural highways, this ethanol producer is located in a small rural town in the US’s Midwest. The plant produces ethanol, a clean-burning, high octane transportation fuel and has a capacity of 135 million gallons per year. The facility utilizes corn/milo to produce ethanol via natural fermentation to produce fuel grade ethanol for blending with gasoline and other motor fuels.