Heat Exchanger

www.ulscorporate.com

World Presence

Head OfficeTORONTO CANADA

SalesMEXICO CITY MEXICO

SalesCARACAS VENEZUELA

ManufacturingBEIJING CHINA

Engineering HOUSTON USA

Continues Performance Improvement Our Objective & Certification

Our main objectives are safety and client’s benefits. ULS is committed to continous improvement over time in all areas in-cluding management system.

Our Certifications:

- ISO 9001- Safety management agreement MASE- Pressure Vessels ASME Stamp U, U2 &R- Pressure Equipmnet Directive: PED 97/23/EC- Maintenance of nuclear power plant CEFRI- Russia: GOST R- Belarus: GOSPROMNADZOR

80% 20%

Industrial Maintanace Pressure Vessels Manufacture

About Heat ExchangersOur Product and Activities

A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in space heating, refrig-eration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing, and sewage treatment.

ULS offers:

Production of all types of tubular heat exchangers in all types of metals for the petroleum, petrochemical, chemical and fertilizer industries, offering high pressure and high temperature vessels.

Up to 200 tons max per unit.

Two Complementary Activites:

We are currently are developing those essential features through a single, global approach, where the safety of employees and plants, as well as customer service and their impressive results, stand as crucial requirements.

ApplicationUse of Heat Exchangers

Heat exchangers are widely used in industry both for cooling and heating large scale industrial processes. The type and size of heat exchanger used can be tailored to suit a process depending on the type of fluid, its phase, temperature, density, viscosity, pressures, chemical composition and various other thermodynamic properties.

In many industrial processes there is waste of energy or a heat stream that is being exhausted, heat exchangers can be used to recover this heat and put it to use by heating a different stream in the process. This practice saves millions of dollars in this industry, as the heat supplied to other streams from the heat exchangers would otherwise come from an external source that is more expensive and more harmful to the environment.

Heat exchangers are used in many industries, including:- Waste water treatment- Refrigeration- Wine and beer making- Petroleum refining

Types of Heat Exchangers

Shell & tube heat exchangers:

Most versatile in terms of types of serviceWidely known and understood since it is the most common type Widest range of allowable design pressures and temperatures Rugged mechanical construction - can withstand more abuse (physical and process)

Air-cooled heat exchangers:

Low maintenance and operating costs (typically 30-50% less than cooling water) Attractive option for locations where cooling water is scarce or expensive to treatWell suited for cooling high temperature process streams (above 80oC when using cooling water should be avoided)

Compact type heat exchangers:

Low initial purchase cost (plate type)Require small footprint for installation and have small volume hold-upTrue countercurrent designs allow significant temperature crosses to be achieved Many different configurations are available (gasketed, semi-welded, welded, spiral)Tend to exhibit lower fouling characteristics due to the high turbulence within the exchangerHigh heat transfer coefficients (3 or more times greater than for shell & tube heat exchangers, due to much higher wall shear stress)

Selection of Heat Exchangers

Due to the many variables involved, selecting optimal heat exchangers is challenging. To select an appropriate heat exchanger, the system designers would firstly consider the design limitations for each heat exchanger type. Though cost is often the primary criterion, several other selection criteria are important:

- High/low pressure limits- Thermal performance- Temperature ranges- Product mix (liquid/liquid, particulates or high-solids liquid)- Pressure drops across the exchanger- Fluid flow capacity- Cleanability, maintenance and repair- Materials required for construction- Ability and ease of future expansion- Material selection, such as copper, aluminum, carbon steel, stainless steel, nickel alloys and titanium- Type of duty - Heating of liquids- Evaporation and boiling- Heating of gases and vapors- Cooling of gases and vapors- Condensation- Cooling of liquids- Heating and cooling of slurries

Manufacturing

Design offices:Our engineers master most design codes and perform thermal and mechanical rating.

Welding engineers:Our team is familiar with state-of-the-art technics and focus on reability and productivity in designing welded joints.

Planning and method:Security at each stage, experience in metal transformation and state-of-the-art software allow us to plan and set up performing production in accordance with the quality/security/environment goals.

Our range of products are: - From 4 to 150 mm thickness - Up to 6.10 m diameters - On every metal ferrous and non-ferrous, stainless steels, low alloy steels, duplex and super duplex, plated steels - Unit weight of 250 tons

Our specialities: Weld overlay, thermal treatment, tube bending.

Tests and control laboratory:Our fully certified laboratory can carry out chemical analysis and full mechanical test on demand: tensile and sharping test, microscopy, macroscopy, PMI in our workshop or on site, spectrometer, and high frequency sound testing.

Control office in the workshop or on site.

Design, Production and Control are integrated for more flexibility and autonomy

Rehabilitation

Industrial Maintenance

Of petrochemical and energy production units

Performance targets assessmentQuality/Security/Environment

We work on existing plants and provide effective solutions to improve output, reduce energy consumption and pol-luting emissions.

Within the framework of a partnership associating industrial maintenance and shut downs, with the abilities of an upstream engineering, we realize the whole operation of rehabilitation, from studies to installation and tests in order to minimize the production slowdown during the shut downs.

- Diagnosis - Study and rehabilitation projects - Planning with integration of production constraints - Installation - Performance tests

We mainly operate on sites outside France where we often take into account the local competences.

SHUT DOWNS AND SITE WORKS

We lead and realise global interventions during programmed technical shut downs.

Preparation: - Technical evaluation - Mustering of human and technical means - Intervention planning

To ensure the follow-up: - Performances assessment - On site controls Conformity Quality Security - Setting of corrective actions - Experience feedback

Our shut down activity is managed by a dedicated team for better feed back and reactivity.

INDUSTRIAL MAINTENANCE CONTRACTS

Lump sum, unit rates, cost plus fee, we are familiar with all types of contracts and can offer the most suitable for reliable and efficient day to day maintenance.

Coordination, realisation:

- Assembly - Cleaning - Insulation- Scaffolding

Mechanics:pumpsturbines compressors relief valvesgate valves

- Metallurgy - Exchangers retubing - Non destructive tests - Hoisting

Metallurgy:boiler makingpiping

- Refractory- Electricity- Mechanics- Lifting

Piloting of related trades:electricityinstrumentation ndustrial cleaning plasturgy scaffoldinginsulationlifting operationchimney engineering

Assembling:industrial cleaningregulation testingcapacity opening/closing work

France Belgium Russia Venezuela

Sara Martinique Congo Lithuania Thailand

Projects around the Globe

F R A N C E

F R A N C E

R U S S I A

B E L G I U M

V E N E Z U E L A

O V E R S E A SS A R A M A R T I N I Q U E C O N G O L I T H U A N I A T H A I L A N D

Heat Exchanger

W: www.ulscorporate.com E: info@ulscorporate.comT: +1 (647) 351 8574 F: +1 (647) 351 8573

Suite 901, 2 Sheppard Avenue EastToronto,Ontario,Canada M2N 5Y7