Brazed-plate heat exchangers

EXEL
Brazed-plate heat exchangers
all the expertise of a manufacturer
For sustainable exchanges ...
EXCELLENCE
IN DETAIL
EXEL : innovative heat
exchanger
echnology
An EXEL heat exchanger is made up of copper sheets stacked with
stamped stainless steel plates. Once fitted with its connections, it is
placed in a high-temperature brazing furnace, where the copper
melts, ensuring a tight seal and mechanical strength. The end result
is a completely functional packaged unit.
The slim design means that less refrigerant fluid is needed.
The counterflow of fluids makes it possible to reach temperature
differences to the degree.
Efficiency
The distinctive pattern was created
using Thermofin's experience in thermal
engineering and the testing facilities at
its Research and Innovation Centre (R&I).
The optimised geometry provides the best
trade-off between thermal yield (derived
from the transfer coefficient) and energy
efficiency (related to pressure drops).
Distribution
In refrigeration equipment, refrigerant circulates
as a liquid and a gas at the same time. However,
at the evaporator inlet the two must be evenly
distibuted throughout every channel of the heat
exchanger in order to ensure proper performance.
The EXEL heat exchangers incorporate many patents
for distribution systems allowing for efficient flow of
diphasic fluid within the unit. Every unit is sized for
optimum performance.
xel
MULTIPLE USES
EXEL heat exchangers can be used for any function in
the refrigeration cycle and for many applications,
from heating to industrial processes.
Refrigeration
Evaporator
Condenser
Desuperheater
Economiser
Oil cooler
Heating
Swimming pools
Geothermal energy
Domestic hot water
Air heater
Heat pumps
Solar
Industrial processes
Cooling of compressed air
Cooling/heating of oil (temperature control)
Hydraulic power packs
Cooling of cutting oil
AN EXTENSIVE RANGE
ange
The EXEL range of brazed-plate heat exchangers is available in 6 sizes and has been
developed to meet your needs as exactly as possible.
> SAVINGS
Thermofin uses its
expertise in thermal
engineering to size
units as closely to
requirements as
possible.
> SLIM DESIGN
> RELIABILITY
Because heat
exchange efficiency
depends on the size of
an exchanger, EXEL
exchangers are ultraslim.
The care taken
in the design and
manufacturing of each
unit and the testing
programmes used
guarantee reliable
equipment.
Specifications
Model
EXL 21
EXL 14
EXL 8
EXL 7
EXL 4
EXL 2
Flow (m /h)
100
30.0
28.5
13.0
11,5
6.0
Flow
USGPM
440
130
125
57
50
26
Max. No.
of plates
200
150
120
120
100
40
3
> ADAPTABILITY
Our inventory and
development policy
is based entirely on
the needs of builders
and fitters. Not only are
EXEL units available
immediately, every
unit in the range can
be seamlessly added
to existing systems
or even be used as
replacements.
Operating limits(*)
TEMPERATURES
> Max. temperature up to 225°C (435°F)
> Min. temperature: -40°C (-40°F)
(*) varies by model and operating conditions
PRESSURES
> Max. pressure up to 42 bar(610 psi)
> Min. pressure: vacuum
VARIANTS & OPTIONS
Thermofin has developed a connection management programme so that you always benefit
from the best cost/lead time trade-off. Your adviser will guide you through all the possibile
connections to find the right one for your unit. And if the one you need does not already exist,
we'll make it!
Threaded NPT couplings with seal in thread
Rotating flanges
Braze-welding couplings for refrigerant pipes
Threaded gas couplings with O-ring
Hex tapped couplings for flexible connections
Victaulic couplings
Cold insulation
Feet and tie bar
brackets
Flexibility
Hot insulation
Controlled
manufacturing
uality
Our two manufacturing lines are certified by quality and cleanliness
standards that are in line with our aim for flexibility and flawless reliability.
Heat exchangers are highly technical components. The core of our machines,
they are where fluids and gases meet.
The materials
used are defined in specifications whose
development required many years of experience
(optimum thicknesses, metallurgical composition,
ductility, etc.).
The presses
are set for total reproducibility while maintaining
a high rate.
Inspections at
regular intervals
of pressed plates are fundamental and lay the ground
for the crucial step of brazing. Plates are inspected by
a 3D CMM. Dye penetrant inspection is conducted to
locate the smallest defects.
We regularly
select a unit at
random from
production and
put it through a
battery of yet more
extensive tests,
such as thermal
shock tests, water
hammer tests and
freezing/thawing
cycles. We use the
results to monitor
and continuously
improve the
quality of our heat
exchangers.
Brazing
ensures protection against internal leakage. It requires precise control
of temperature rise and fall cycles to ensure that the copper is melted
completely and distributed to each contact point. Proper brazing ensures
the strength, endurance and performance of your unit.
The test chamber
is the ultimate trial in our quality
assurance process. Each exchanger is
tested individually before being shipped
to make sure it will operate reliably.
Our people
Last, but not least, the
dedicated people at Thermofin
are the true strength behind
the quality and service we owe
you.
The heat exchange
specialist
Since 1993, Thermofin has designed,
manufactured and marketed a large range
of high quality exchangers for industrial
processes. Over the years, Thermofin has
become one of North America’s leading name
in thermal exchange. Through its expertise and
its dedicated workforce, Thermofin will
always offer you the right exchanger: the one
for sustainable exchanges ...
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47, Marie-Victorin Blvd. Candiac
Quebec, Canada
J5R 1B6
Tel.: (450) 444-4405
Fax: (450) 444-7745
E-mail: [email protected]
www.thermofin.net
This document is not legally binding. As part of its policy of continual improvement, Thermofin reserves the right
to make any technical modifications it feels necessary without prior notification.