Ge Air Cooled Heat Exchangers Brochure
Ge-Air-Cooled-Heat-Exchangers-Brochure-656406 ge-air-cooled-heat-exchangers-brochure-656406
2015-03-11
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GE Oil & Gas Air cooled heat exchangers Robust and reliable for all loads and applications What it is Air cooled heat exchangers are commonly used in industrial applications where a reliable source of water is not available as a cooling medium. Air cooled steam condensers are a special type of heat exchanger employed to condense steam at the exhaust end of a steam turbine for both power generation and mechanical drive applications. How it works The hot process fluid to be cooled flows through finned tubes while the cooling air flows across the outer surface to remove heat. The cooling air is propelled by fans in either a forced draft or induced draft configuration. Worldwide presence Experience makes the difference GE’s Oil & Gas business has more than 100 years of industry experience and 5,500 employees worldwide. Our Air Cooled Heat Exchanger team is centered in Vibo Valentia, Italy, and is an integral part of the larger Oil & Gas organization headquartered in Florence. Together, we provide complete solutions to all industry segments – with a broad and expanding portfolio of advanced technologies, plant equipment and services. We have been a global leader in the fabrication of air cooled heat exchangers and steam condensers since the late 1960s. The first high tech pipe and bend air cooled heat exchanger we supplied in the early 1970s was for sweet gas with pressure slightly over 300 bar. We are a global company with a local touch. Our highly experienced personnel offer comprehensive customer support backed by immediate access to all of GE’s broad resources. Our people understand the local customs and regulations, and can help you identify and track growth opportunities. All our manufacturing processes are implemented in strict accordance with GE’s world-class Six-Sigma quality system, which conforms to all major international quality assurance standards including ISO9001, BS5750 and UNI EN 29001. Compliance of the QA system with these standards is certified by LLRR. Focused on quality Our latest applications are for more than 650 bar with H2S content as high as 18%. We have supplied more than 10,000 bundles for applications throughout the industry from upstream to hydrocarbon processing. Our investment in technology continues in an effort to meet even more extreme conditions. The quality of our exchangers is a result of advanced design techniques employing the latest software, world-class fabrication facilities and capabilities, Six-Sigma quality methodology and extensive experience in both manufacturing and in-field service. A complete range of products Gas re-injection Header configuration Pipe & bend Plug box Cover plate Finning type Extruded/Embedded L-footed Gas compression & gathering gas lift Liquefied natural gas Gas pipelines & storage Gas-to-liquids Refineries & Machinery lube petrochemicals oil cooling Advanced technology in gas cooling Providing service to the industry Gas type and pressure are the two key considerations behind proper design and materials selection to ensure the performance on which our customers rely over the long term. GE Oil & Gas offers a complete portfolio of after-sales services to keep heat exchanger and condenser equipment operating at peak performance for many years, or to upgrade them to meet more stringent regulations or new operating requirements. Beyond parts and bundle replacements, our services include: Materials The level of H2S and CO2 contained in the gas will significantly affect machine durability and performance relative to corrosion. We therefore choose special, heavy-duty materials for sour gas applications – not only for the air cooled heat exchanger, but for the whole plant. Advanced corrosion-resistant alloys such as Incoloy 825 require specialized welding techniques and we have the expertise to ensure high quality construction with these materials. Welding Very high pressures require special considerations in material type and thickness, design and manufacturing – particularly welding – all carefully adapted to the specific characteristics of the gas. Welding of complex parts and various thicknesses involves extreme heat and, therefore, demands expert care to ensure uniform cooling and to avoid material stresses. We analyze and relieve stress levels with local heat treatment (tube-to-header welds) and our specialized furnace (headers and flanges). Our commitment to R&D Since the late 1960s GE Oil & Gas has been a global market leader in the design and fabrication of air cooled heat exchangers and steam condensers. We are continuously advancing our technologies to meet our customers’ requirements. Leveraging synergies across the entire GE network, we create solutions so that challenges on the horizon can be transformed into real opportunities. Optimization The performance of air coolers is checked and diagnosed by collecting data on air flow, tube flow, fan power and the overall status of the equipment, and processing it directly in the field. We provide a detailed action plan to optimize air cooler performance. Upgrades and modification It is also possible to upgrade any installed air cooler and increase the machine capacity. The performance assessment can provide useful information on what upgrades are feasible for the current equipment and the GE experts are able to perform any kind of modifications including re-qualification to provide performance guarantees. GE Oil & Gas Air cooled heat exchangers Cover plate configuration These exchangers are generally used for dirty fluids with low operating pressures in applications such as cooling of machinery oil and heavy hydrocarbons in refineries. Cover plate heat exchangers are designed for ease of maintenance. A flanged, removable cover allows complete access to the inside of the header for cleaning – since this feature substantially limits the design pressure, this type of heat exchanger is not recommended for critical service applications. Operating conditions are typically up to 35 bar (507 psi) and processed fluids can be very viscous. Plug box configuration These exchangers are suitable for a wide range of applications and services involving cooling and condensing of hydrocarbons and gases over a broad range of process conditions in any size plant. The distributor (header) of this model is a completely welded box with holes in front of each finned tube to allow cleaning and inspection. The design effectively meets competing needs such as low cost and high versatility. This configuration can cover most common applications with operating conditions typically up to 220 bar (3,192 psi). Design flexibility and manufacturing quality to meet all pressure and temperature requirements Pipe & bend configuration This equipment uses a header made of forged pipe and is designed to withstand very high pressures. It is recommended for use with clean fluids since no inspection openings are provided. Its fully welded design is especially suitable for critical and hazardous applications. Designs can handle extremely demanding pressure – over 650 bar (9,427 psi) – temperature and material conditions. Finning Together with header features, finning of the tubes is key to air cooled heat exchanger performance. GE produces three types of finning. Extruded High efficiency fins for higher temperature applications (typically up to 300°C). These fins provide the base tube with complete and permanent corrosion protection against atmospheric contaminants. Embedded or grooved High efficiency finning for high operating temperatures (even up to 400°C). L-footed Standard fin for low temperature applications (typically up to 170°C) where some degree of tube wall protection is required. Applications Header configuration Pipe & bend Gas re-injection Gas-to-liquids Refineries & petrochemicals Machinery lube oil cooling Cover plate • Liquefied natural gas Gas pipelines & storage Plug box Finning type • • • • • • • • Extruded/ Embedded • • • • • • L-footed • • • ge.com/oilandgas GE imagination at work © 2011 General Electric Company. All rights reserved. ACHE_FS_092211 GE Oil & Gas Air cooled steam condensers Thermodynamic design to meet all unique project specifications Advanced, single-source solutions Air cooled condensers are preferred to water cooled condensers when there are special environmental or watershortage conditions. The steam condenser is a vacuum-tight, air cooled heat exchanger, usually with bundles sloped at approximately 30° to reduce the footprint and with 100% fully welded connections. Our system is a full package consisting of the core unit and all auxiliary equipment needed for operation of the condensation steam plant. With over 60 years of extensive experience in this area and advanced thermodynamic design capabilities, we fine-tune the critical connection between the condenser and steam turbine for optimized performance in any steam cycle. Our designs also ensure uniform operating conditions within the heat exchanger to avoid the formation of air pockets. The breadth of our experience also gives customers a single point of responsibility for an entire project – which is highly beneficial to overall system efficiency and reliability, speed of problem solving, and reduced project management costs. Pump Condenser Boiler Turbine GE Oil & Gas provides the industry-unique capability to optimize plant performance with a condenser-turbine package that is fully matched through the entire design process. The turbine, condenser and pump are all manufactured by GE Oil & Gas, while the boiler is supplied by our verified supplier to exact GE specifications and quality standards Applications Package supply Power generation • Thermal solar, CSP • Waste to energy • Cogeneration • Combined cycle Mechanical drive • Refinery • Ammonia and urea • Methanol • Ethylene • Vacuum system • Finned tube bundles • Pumps • Hot well • Steam duct • Piping • Site assembly Installed fleet capabilities Fin technology • Embedded and extruded • Non-porous aluminum Operating temperature -25°C to 50°C Max. finning tube length 15 m Turbine exhaust pressure Min. 0.05 barA Inlet flange temperature Min. 33°C ge.com/oilandgas GE imagination at work © 2011 General Electric Company. All rights reserved. ACSC_FS_110311 Investing in local partnerships to maximize process, skill and technology transfer across the region Local partnership Technologies & support In October 2009, a 50-year relationship was reinforced by combining the TAMIMI Group’s local engineering strength with GE’s global technology leadership. Our latest joint venture is dedicated to serving Saudi Arabian, Middle East and North Africa customers with localized manufacturing and testing capabilities, as well as rigorous supply chain logistics and transportation resources. The partnership also promotes Middle East growth through technology transfer and the development of skills for the local workforce. Heat exchangers and condensers for all high pressure, process plant and low pressure applications. Expert field service and life cycle support for installation, maintenance, upgrades and modifications to ensure optimized long-term performance. ge.com/oilandgas © 2011 General Electric Company. All rights reserved. MEHECO_FS_110811 GE Oil & Gas ge.com/oilandgas Global Headquarters Via Felice Matteucci, 2 50127 Florence, Italy T +39 055 423 211 F +39 055 423 2800 customer.service.center@ge.com Nuovo Pignone S.p.A. Nuovo Pignone S.r.l. Air Cooler and Steam Condenser Facility Contrada Le Marinate 88019 Vibo Valentia, Italy T +39 0963 5691 F +39 0963 567 528 The information contained herein is general in nature and is not intended for specific construction, installation or application purposes. GE reserves the right to make changes in specifications or add improvements at any time without notice or obligation. GE, the GE Monogram, and imagination at work are registered trademarks of the General Electric Company. ©2011 General Electric Company All Rights Reserved For complete contact information, please refer to our website. GE imagination at work GE_ACHE_110811
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