PROCESS EQUIPMENT UPDATE
ADVICE FOR REDUCING unplanned GPHE DOWNTIME G
etting the best plate heat exchanger performance requires preventive maintenance,
especially for hygienic applications within the food, dairy, beverage, pharmaceutical and home & personal care industries. However, each process system is different, with individual parameters that affect the heat transfer and sealing effi ciencies of the plates and gaskets. Here, we offer some advice on how to reduce GPHE downtime. A gasket, its material properties and
its construction are specifi cally selected to provide optimal sealing performance for its intended application. Knowing exactly when to replace gaskets is almost impossible since the timing varies, depending on the application. But over time, all gaskets wear due to natural aging as well as the temperature, pressure and stress of normal operating conditions.
An Alfa Laval FrontLine gasketed plate heat exchanger
Without preventive maintenance, you risk costly unplanned downtime. There are three key things to consider here. The fi rst point is temperature and pressure: higher operating temperatures
and pressure cause more wear and tear on the gaskets.
The second point is the issue of compression: gaskets are subjected to local stress from the moment you fi rst clip them on to and tighten the plates. Finally, store spare gaskets in a sealed bag, in a dry, cold and dark place, and away from ozone-producing equipment such as machines or light armatures. Alfa Laval is a leading provider of products and engineering solutions based on its key technologies of heat transfer, separation and fl uid handling. Its solutions enable customers to heat, cool, separate and transport products in industries that produce food and beverages, chemicals and petrochemicals, pharmaceuticals, starch, sugar and ethanol. ■
For more information visit
www.alfalaval.com
Intelligently combined
www.bosch-industrial.com
Three good reasons for combined energy systems from Bosch: Reduced energy costs for higher competitiveness Cost-saving own power generation and maximum waste heat recovery Eligible energy management (EN 50001)
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15.02.17 10:48
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