HRS Heat Exchangers Rotex Rotary Scraped Surface Heat Exchanger

HRS Heat Exchangers Rotex Rotary Scraped Surface Heat Exchanger features a bespoke low noise gearbox system that allows individual scraping of several inner tubes in one common shell with one common motor.

A scraper bar system which includes helicoidally shaped scraper blades on each bar aids the movement of highly viscous fluids through the heat exchanger, reducing pressure drop and increasing heat transfer.

The baffle design allows one or multiple heat transfer tubes to be fitted into one single heat exchanger shell. This makes the shell side cross-section large. If the liquid shell side flow is limited then velocities and therefore heat transfer reduces on the shell side. To improve on this, longitudinal baffles are fitted to separate the fluid paths in the shell acting as an individual compartment for each heat transfer tube. The flow cross-section is reduced a number of times and velocities increase and therefore heat transfer is maintained. For multipass designs on tube (product) side, complete counter-current flow between shell side fluid and tube side fluid can be obtained.

These baffles can be omitted if condensing or evaporating applications require removal of baffles for better performance.

The heat exchanger is fitted with removable inner tubes, ensuring easy inspection and maintenance. This reduces operational costs and increases service life.

The HRS Rotex combines a high heat transfer capacity with increased surface area and with its helical screw reduces pumping costs. These advantages make the HRS Rotex a solution for highly viscous products. The added bonus of ease of maintenance has been designed into the product to reduce operational costs; this makes the heat exchanger suitable for new projects or replacing existing equipment where energy savings and whole life costs are key in the decision-making process.