AlfaCond

Alfa Laval AlfaCond condensers are specifically designed for condensing of vapour under vacuum. These plate surface condensers are ideal for use in applications such as vacuum condensers in evaporation systems, ethanol condensers in bioethanol plants, pan vapour condensers in sugar refineries, and as turbine condensers in small power plants. With its compact design, AlfaCond is easy to install where space is crucial.

Highly efficient and very compact

Highly efficient and very compact, AlfaCond is the world's first plate condenser specifically designed for condensing under vacuum. Due to its compact size and efficient design, AlfaCond has become the preferred alternative to bulky indirect shell-and-tube condensers. Also, AlfaCond is easy to clean by means of Cleaning-in-Place (CIP) or mechanically. 

AlfaCond is an alternative to direct condensers when condensate recovery is the goal and when there are space constraints. The AlfaCond can be configured with or without subcooling of the condensate. Non-condensables are removed from the condensate outlet pipe and led to the vacuum system.

Equipped with well-designed features, AlfaCond heat exchangers are easy to maintain and have a long service life. AlfaCond features the glued gasket, which is 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.

Peace of mind

Alfa Laval global service network is never far away. 

Benefits

  • Optional sub-cooling of condensate and non-condensable gases
  • Flexible configuration
  • Easy to install
  • High serviceability 
  • Access to Alfa Laval’s global service network

How it works

AlfaCond plate condenser

The heat transfer area of a gasketed plate-and-frame heat exchanger con sists of a series of corrugated plates, assembled between the frame and pressure plates, which retain the design pressure. The sealing between the plates on the AlfaCond alternates between laser welds and gaskets. It has a unique porthole configuration that is specifically designed for vacuum condensation. Vapour condenses in the welded channel and the cooling water passes through the gasketed channel.

The channel gap size is asymmetric with a larger gap on the vapour side and a smaller gap on the cooling water side. The result is a very low pressure drop on the vapour side and high velocity and turbulence on the cooling water side. Together, these maximize heat transfer efficiency and minimize fouling.

 

Features that matter

It's important to understand that all gasketed plate heat exchangers are not the same. The features highlighted below are important components to look for in a GPHE, and when combined, these features offer extensive benefits, such as reduced total cost of ownership, higher efficiency and increased staff safety.

Bearing box

What is it?

A device between the tightening bolt head and the frame that reduces friction forces and makes service easier.

Risks with other designs

Opening and closing the PHE without bearing boxes is time consuming and increases the risk of paint damage, which can lead to corrosion damage.

Gasket glue

What is it?

Glue between the gasket and the metal plate safeguards high quality bonding for the toughest operating and service conditions. A two-component oven-cured epoxy glue, that can only be removed from the plates by special treatment, will keep the gasket on the plate during cleaning.

Risks with other designs

Gaskets attached to a plate with rubber glue, oven-cured or not, does not achieve a strong enough bond, which can result in gaskets falling off during cleaning, when the temperature gets critical or when aggressive fluids make the gaskets swell.

Five point alignment

What is it?

Keeps the plates aligned during closing of the plate heat exchanger that facilitates service.

Risks with other designs

Many alignment systems do not close the vertical gap between the carrying bar and the plate, leading to wavy plate packs with leaking problems.

Pressure plate roller

What is it?

The pressure plate must be easy to move and slide along the carrying bar in order to gain access to the plate pack. The most common solution is a roller on top of the carrying bar, making it easy and less time consuming to conduct service. The roller should be made out of metal to be able to carry the weight of the pressure plate.

Risks with other designs

The mechanical solution of the roller can be more or less robust. The risk is a pressure plate that is jammed and impossible to move when it is time to conduct service. 

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