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8/7/2019 Hamon Cooling Towers ENG LR
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HAMONWet Cooling Systems
CO
OLINGTO
WERS
8/7/2019 Hamon Cooling Towers ENG LR
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Hamon in a ew words
Hamon started its industrialactivity in Europe (Belgium and
France) a century ago and devel-
oped the cooling tower business.
With growing mining and heavy
industry sectors, demand growth
prompted Hamon to move into
the energy business.
Hamon spread its wings geo-
graphically in the seventies and
urther consolidated the thermal
business in the nineties. Hamon
became a world leader in the
product lines it chose to be in,
respectively:
wet cooling towers
air-cooled heat exchangers
air pollution control: ESP, bag l-
ters, fue gas treatment
chimneys
Concept o centers o excellence
was implemented. Hamon Thermal
Europe with its engineering de-
partment and R&D center sup-
ports a network o actories and
sister companies, which locally
assure contracting, procurement
and eld services in the UK Ger-
many Spain Italy South Arica
United Emirates India Korea
China Thailand Indonesia
Australia Brazil...
Numerous installations and equip-
ment operating worldwide in a
wide range o industrial plants
are evidence o Hamons capabili-
ties and experience.Whatever the
industry you name, Hamon has
supplied cooling towers or it:
power plant, renery and down-
stream petrochemical plant, erti-
liser, paper industry, steel mill,
sugar mill, zinc smelter and other
metallurgical installation, chemical
plant, etc.
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Hamon Thermal aims at oeringthe best economical solution or
the whole lietime o feld erect-
ed cooling towers. Hamon cares
or most o the industries and is
particularly expert in:
accurate design meeting ex-
pected perormance
economical solutions with the
best cost/quality ratio
strong eld capabilities
development o new solutions
reducing urther environmental
impact
repair and maintenance
dismantling
recycling used PVC components
Our commitment to the industry
Hamon has a wide range o heattranser media suitable or:
any industrial water
sea water
low pH solution
Depending on the application re-
quirements, the equipment is
designed to customer preerred
combination or eciency, long-
lie expectancy, power saving and
respect o environmental local
regulations.
In order to meet these specica-
tions a wide choice o solutions
is available in layout, arrange-
ment, structure, internals and
mechanical equipment.
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4
Natural drat cooling towers
In the seventies and early eighties,many large power plants were
built and equipped with tall natural
drat cooling towers (NDCT) in
Europe, US, South Arica, India,
China, etc.
NDCT were erroneously associat-
ed with nuclear plants. Since the
mid-eighties, very ew were built
in the Western countries because
o lack o large power plant pro-
jects, visual impact constraints, and
a general eeling o pollution as-
sociated with them.
The trend is now reversing as in
many places, natural drat towers
are now regarded as environ-
mentally riendly thanks to the
power saving that they generate.
Beyond the power saving, NDCT
oers the ollowing advantages:
limited plot area
no mechanical noise (no an)
limited maintenance
high longevity (generally morethan plant lie expectancy)
The payback period o an NDCT is
8 to 16 years depending on sev-
eral actors. The main one is the
local construction cost, which may
dramatically vary rom one country
to another. Hamon can either sup-
ply the turnkey tower or the ther-
mal part with services like civil
work design, construction steer-
ing, supervision, erection...
Hamon has designed and built
more than 300 NDCT and has a
wide experience even or high seis-
mic and severe weather conditions.
Hamon is at your disposal to help
you developing your project any-
where on the globe, preparing
budget proposal, civil work in-
cluded, and selecting the most
appropriate solution or perorm-
ance, heat transer media, noise
reduction, etc.
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5
The an assisted natural drat cool-
ing tower (FANDCT) is an attrac-
tive option when:
Natural drat cooling tower rehabilitation
Along the years the environmen-tal concern and consequent rules,
have strengthened and the water
rejection conditions have been
changing; the use o chemical ad-
ditives has been restricted. There-
ore, the water characteristics are
such that scaling and ouling will
occur more requently. Another
exchange surace than the origi-
nal one should be selected or the
new water conditions. Indeed, the
thermal perormance must be
considered on a long-term basis.
The media which seems to oer
the best qualities can lose them
very rapidly i operating conditions
and water quality have not been
taken into account. Hamons ex-
perience will help you evaluatethe most eective heat exchange
surace.
Rehabilitation will restore the per-
ormance o the original design o
a Hamon cooling tower. In other
cooling towers, we will probably
reach a perormance improvement.
Another concern may also be the
time available or such an opera-
tion resulting in the total shut-
down o the tower. Our erection
teams have proven their eciency
and commitment to saety: e.g.
a NDCT o 106 m diameter and
126 m height. Scope: removal o
existing lm ll, installation o
10 000 m new ll, replacement osprayers, removal, cleaning and re-
installation o drit eliminators,
repair o de-icing system grids and
several small other repair works.
Work perormed in 3 shits, 6 days/
week in 22 days.
Hamon is also ully qualied to re-
move asbestos cement sheets and
to replace them with the best
suited material.
Hamon also oers solutions or
the recycling o the PVC in order
to re-use it as raw material in oth-
er production processes.
Fan assisted natural drat cooling towers
the available plot area does not
allow mechanical drat narrow
bar construction
height is limited or visual reason
due to the climate conditions
ans to boost the air fow are
required. The investment in a tall
shell becomes thereore eco-nomically unjustied.
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6
Thanks to its fexibility and costeectiveness, the mechanical drat
cooling tower (IDCT) ideally an-
swers most cooling duties and
plant requirements. With approxi-
mately 5000 reerences in this
type o tower, Hamon has come
across most o the application re-
quirements and has developed
the technology to meet them. Each
customer takes ull advantage o
this technology data base and en-
joys a product that is ne tuned
and lls his requirements and
budget.
We build any size o IDCT with all
type o structures (steel, wood,
FRP, preab concrete, cast con-
Mechanical drat cooling towers
crete) and many heat exchangesuraces (rom splash grids to high
perormance lm). All system ele-
ments, beyond customer specic
requirements guide our design:
water quality
air environment
(chemicals, dust, ...)
noise and plume limitation
available plot area
local labor costs
All our equipment is supplied withan O&M manual that clearly
species operation, maintenance,
health and saety requirements
and recommendations.
For all cooling towers, we clearly
advise the impact on the environ-
ment such as perormance, drit
loss, noise level, etc. In order to
help in the prevention o legionella,
our cooling tower designs ollow
the best practices and allow clean-
ing and access to the internal
parts o the tower.
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7
A plume abated cooling tower (PABCT) is the best avail-able solution where local constraints are such that the
presence o plume is not accepted in normal conditions
(along motorways, airports, close to residential areas...).
This tower is an IDCT oering the same fexibility, adapt-
ability and all eatures listed in the previous page. Com-
pared to other technical solutions, it combines the
ollowing advantages:
no plume visibility
outstanding perormance o an evaporative cooling
tower
cost attractiveness
In this area, also called hybrid or wet/dry, Hamons tech-
nology is unrivaled.
Plume abated cooling towers
40
30
20
10
0
Absolute humidity
Saturation
Mixingline
Temperature
10% 20
% 40% 60% 80%
100%
1
2
3
4
1 1
2
4
3 3
1 Inlet2 Exit wet section - supersaturated air - visible plume3 Exit dry section - heated and dry air4 Exit cooling tower - no saturated air
Principle o plumeabatement
Outlet air o the wet section othe cooling tower is mixed
with the air heated by the
nned tube bundles installed in
the walls above the wet section.
Outlet air characteristics will
then be positioned on the line
linking points and.
I the line linking points and
does not cross the 100% humidity
curve, no plume will be visible.
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9
The selection o the heat transer media is essential to guarantee theoptimal eciency o your cooling tower. As a result o Hamons continuous
thermal research, we can oer you a ull range o lls covering all cooling
water types.
The COOLDROP, the real splash ll, is the all purpose solution suitable
or most water qualities, including sea water and heavily contaminated
water. This heat transer media consists o trays (the Hamon diamond
grids) hung rom beams located above the water distribution. The dia-
mond grids, their supports and spacers are made o polypropylene; the
wires according to the water aggressiveness are in SS316 or in a moreexotic alloy.
Maximum debris size (diameter): 50 mm
The DROPPACK ll combines splash and lm heat exchange process
with the advantages o low ouling capability o the splash ll and the
good thermal eciency o the lm ll. It is well adapted to any induced
or natural drat cooling tower using poor industrial water quality. Water
with high concentrations o suspended bres is not recommended.
Maximum debris size (diameter): 30 mm
The COOLFREE is the most advanced lm ll combining low-oulingand low-scaling properties whilst retaining good thermal perormance.
The main application is or cooling towers using very poor water quality,
in some cases even without water treatment. It is also very good or lm
ll cross-fow cooling towers.
Maximum debris size (diameter): 30 mm
The CLEANFLOW lm ll is qualied worldwide as the best lm ll
combining low ouling properties with good thermal perormance. It is
well adapted to any induced drat or natural drat cooling tower using
poor quality industrial water. It is also suitable or other severe applica-tions such as laminated decanting and gas cleaning.
Maximum debris size (diameter): 32 mm
The CLEANFLOW PLUS is the improved technology o the cleanfow ll
by increasing its thermal perormance whilst retaining its ouling resist-
ance. It is well adapted to any induced or natural drat cooling tower
using poor industrial water quality, in particular sea water.
Maximum debris size (diameter): 22 mm
The COOLFILM is probably the most thermally ecient ll worldwide.
It is well adapted to any induced drat or natural drat cooling tower using
normal industrial water quality.
Maximum debris size (diameter): 17 mm
Heat transer media
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10
A preventive maintenance pro-gram is essential to ensure smooth
operation avoiding unexpected
costly shutdowns and problems
associated with legionella. Further-
more, or several reasons (ageing
tower, increased power need, tech-
nical improvements, etc.) other
works are required during the lie
time o the cooling tower.
Customers recognize Hamon or
its nely tuned service assuring:
short shutdowns
reliable diagnosis
ocus on the action needed
Thanks to the outstanding cool-
ing tower competence o its site
teams, Hamon can consider any
type o repairs and upgrades. Here
are some non exhaustive exam-
ples o regularly perormed jobs.
ll:
replacement o asbestos-ce-
ment sheets by polypropylene
grids in a natural drat tower instal-
lation o a new wooden rame-
work and new lm ll
Service
drit eliminators: replacement o eliminators to
improve eciency
cleaning o existing: (disas-
sembling cleaning wave by
wave reassembling with new
spacers and rods)
water distribution:
replacement o steel or asbes-
tos cement pipes with FRP/PVC
materials
partial renovation o distribu-
tion pipes
replacement o wooden open
trough with FRP material.
installation o anti-slip roo cov-
ering, restoration o the casing
material
an-motor group
replacement o cardan shats by
composite transmission shats
replacement o an and gear-
box by low noise devices
installation o a walkway to
gearbox
installation o backstops to
the an
repair o an blades...
replacement o wooden or steelan stacks with FRP material
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11
structure wood: partial or total removal
and replacement o the upper
part o the tower, local re-
placement or reinorcement
o the rame...
concrete: partial renovation or
consolidation
renovation o large natural drat
cooling towers
conversion o a cross fow to a
counter fow cooling tower
hybridisation o an induced drat
cooling tower
split o double cells in single
ones
Our test team consisting o high
level, experienced thermal Engi-
neers can perorm any test: per-
ormance, an fow, hydraulic, noise,
vibrations.
Hamon spare parts centre locatedin France is servicing our traditional
commercial channels, which remain
at your disposal or spare parts.
Your local oce will liaise with
the centre i required. Hamon man-
uactures its own products (an
stacks, lm lls, drits eliminators
and water distribution compo-
nents).
Hamon can supply all your spare
parts requirements such as:
Fan stacks
manuactured in Hamon actory
Fan-motor group
an blades, hub, clamping blocks,
hardware
gearbox, all gearbox spares
transmission shat transmission
shat spares replacement o
steel shats by composite ones
motor
vibraswitch
Drit eliminators
manuactured in Hamon actory
wave 45 and 25 mm pitch cellular
Distribution
Hamon design
pipes, sprayers, nozzles, head
supports
Heat exchange media
manuactured in Hamon actorysee page 9
Spare parts
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BELGIUM
HAMON THERMAL EUROPE (BE)Axisparc ARue Emile Francqui, 2B-1435 MONT-ST-GUIBERTTel: +32 10 39 05 00Fax +32 10 39 05 [email protected]
FRANCE
HAMON THERMAL EUROPE (FR)
Perspective Seine84, rue Charles MichelsBtiment C93284 SAINT-DENISTel: +33 1 55 87 78 78Fax: +33 1 55 87 78 [email protected]
ITALY
HAMON THERMAL EUROPEItalian BranchVia G. Durando, 3820158 MILANO
Tel.:+39 02 39325888Fax: +39 02 [email protected]
GERMANY
HAMON THERMAL GERMANY GmbHAlte Wittener Strasse 3044803 BOCHUMPostach 110644711 BOCHUMTel: +49 234 93550Fax: +49 234 [email protected]
UNITED KINGDOM
HAMON UK LTDUnits 1 & 2, Ropery ParkAlred StreetHU3 2DF HullTel: +44 1482.787.767Fax: +44 [email protected]