New HRS multi-pass heat
exchanger improves heat transfer
of viscous materials
The unique HRS R Series of scraped
surface heat exchangers is well
established for multi-tube scraped
surface installations thanks to its ability
to provide a large surface area with a very
small footprint, and the use of a helical
scraper system. Now, the company has
launched a new multi-pass version – the
RMP Series – aimed at improving heat
transfer for challenging viscous materials.
Available in single and multiple tube
configurations, one of the most popular
models in the standard R Series is the
R3. Containing three tubes, it provides a
greater heat transfer area and capacity
within the same footprint as a single
unit, as well as all the benefits of a single
heat exchanger, such as a single set of
connections to the product and services,
and the reliability and cost savings of a
single drive assembly compared with
multiple motors.
In its standard configuration, product
passes from a single-entry point through
each of the three tubes in parallel before
exiting the exchanger from a single port.
This arrangement reduces the overall
velocity of the product as it passes
through the heat exchanger and prevents
operation in a pure counter-current flow.
However, the new multi-pass
arrangement, known as the RMP, now
links each of the three tubes in series:
product enters through one tube, passes
down the next and then moves back
up the third. The use of
longitudinal baffles in the outer shell greatly reduced compared to other large
achieves a true counter-current flow to surface area heat exchangers. Flushing
improve heat exchange efficiency, while is therefore more efficient, enabling
maintaining product velocity helps reduce greater recovery of high value products
pressure drop and increases product without contamination or mixing, while
mixing. Crucially, the RMP maintains the the cleaning phase itself is also more
overall large surface area of a standard effective due to the maintained velocity.
R3 system within a compact unit; one of
the system’s key benefits.
The new RMP Series is ideal for a range
of challenging viscous materials, and is
As the new layout has a consistent being deployed in a number of sectors,
cross-sectional area, the risk of dilution including viscous and starchy foods, such
and blending from as thick sauces, pastes, creams and pet
cleaning-in-place (CIP)
foods, for example.
operations is
www.hrs-heatexchangers.com
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