Hamon Cooling Towers ENG LR

8/7/2019 Hamon Cooling Towers ENG LR

1/12

HAMONWet Cooling Systems

CO

OLINGTO

WERS


2/12

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.


3/12

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.


4/12

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.


5/12

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.


6/12

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.


7/12

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.


8/12


9/12

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.


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.


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.


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.


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.


Heat transer media


10/12

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


11/12

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


12/12

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]

Documents

Hamon Cooling Towers ENG LR