is possible. Because this option relies on
a physical barrier, no additional systems
are required, making construction,
operation and maintenance of the heat
exchanger much simpler. For this reason,
HRS Heat Exchangers uses the double
tube plate system in food production
situations where contamination needs to
be prevented, and double tube plates are
included as standard with our S and SI
Series of multitube heat exchangers, as
well as the double tube DTF Series.
The gap between the two tube plates will
depend on a number of factors, including
the food products being processed and
the space available for the installation,
but can be effective even when the
distance is just 3mm. Depending on the
materials being used and the type of
situation that the heat exchanger is used
in, the gap between the two plates may
be shrouded (with appropriate drain or
inspection ports) or open.
Finally, it is important to regularly clean,
inspect and maintain heat exchanger
equipment in line with the manufacturer’s
recommendations. For example, if
handling acidic or abrasive materials
(such as fruit juice) more frequent
inspection and cleaning may be required.
Regular cleaning will ensure that drain
holes etc. operate correctly in the event
of a leak, while maintenance and cleaning
will reduce the risk of leaks occurring and
provide an opportunity for any repairs.
www.hrs-heatexchangers.com
The tube plate (or tube sheet) is the point at which the tubes
in the heat exchanger are welded to the end of the vessel
Diagram showing the difference between a single (top)
and double (bottom) tube plate
FDPP - www.fdpp.co.uk 9