APEX GROUP

VOORBURG, 
Netherlands
http://www.apexgroup.eu/
  • Booth: K73


Discover APEX-delfino® Technology & join a Laser experiment.

Welcome to APEX!

APEX Group has 45+ years of expertise in designing and manufacturing heat transfer equipment. Our APEX® & CORPEX® plate-type, glass-enameled and tubular exchangers are custom designed to fit clients’ needs. We provide advanced engineering solutions for high performing heavy-duty gas/gas and gas/liquid equipment for heat recovery and environmental projects.

We ensure know-how, patented technology, skilful engineers & innovative solutions researched by our R&D Department, that continuously develops APEX's products and technologies.

Visit booth K73 to witness laser optical measurement techniques applied on a scaled down flat plate type Heat Exchanger model. Discover our new APEX-delfino® technology created to make a more economical design, to guarantee proper working conditions, to extend the life cycle thanks to corrosion protection and to increase our operation range to lower Reynolds numbers.

Brands: Gas/Gas Steam/Gas DeNOx Heat Exchangers, Air Preheaters, APH for Incinerators, Glass-Coated, CFD, FEA, LDA, PIV, Acid Dew Point, Low Reynolds, ASME Section I & VIII Div.1, PED, ASME U & S, IBR, ABSA


 Show Specials

  • APEX Group’s Research and Development team proudly presents our latest innovation in Heavy Duty Heat Exchangers: APEX-delfino® Technology. This is a new technology applied to guarantee proper working conditions, to increase the lifetime of the unit due to corrosion protection as well as to increase the operation range to lower Reynolds numbers.

    At booth K 73 you can have a glimpse of our experiments conducted in order to develop APEX-delfino® Technology; we have prepared an experimental set-up model and will entertain you with laser optical measurement techniques applied on a scaled down flat plate-type Heat Exchanger model. The experimental set-up, which is equipped with a high end Particle Image Velocimetry System for flow visualization was especially designed to demonstrate how we studied about the Flow Field in our Heat Exchangers.


 Press Releases

  • APEX Group presents its Heat Exchangers portfolio and especially the DeNOx units at Power-Gen Europe, from 27 – 29 June 2017, in Cologne, Germany, at stand K 73

    APEX Group offers indispensable part of Tail-End SCR technology that is found to be most efficient in industrial applications. Thanks to over 45+ years of experience in heat transfer field, we offer Gas/Gas Heaters as well as Steam/Gas Heaters individually tailored to your needs and dedicated to SCR installations. Adjusting to about 300+ customers’ requirements, we provided a wide range selection of materials for APEX devices. The choice of applied materials depends on multiple factors, among them are the temperature of the process and flue gas composition. Therefore, each unit we provide is individually designed and fitted to fulfill the needs of our customers.

    Location of APEX unit

    APEX devices are designed for Tail-End denitrification installations. DeNOx Tail-End Technology requires specific range of flue gas temperature, that varies from 250°C to 420°C. To obtain optimal conditions, flue gas temperature must be increased, that can be achieved by adding APEX Gas/Gas Heater. After Flue Gas reheating, an additional APEX Steam/Gas heater can be implemented instead of additional burners system.

    Both exchangers are located behind other flue gas treatment equipment, Flue Gas Desulphurization (FGD), Electrostatic Precipitators (ESP) etc. Operating with clean gas minimizes the risk of deposits at the device and extends the life of the catalyst.

    Advantages of APEX solutions

    • Possibility of placing the SCR reactor on the top of APEX unit thanks to the integrated support structure
    • Modular construction
    • Counter Current flow
    • High thermal efficiency
    • Easy Maintenance and Cleaning due to Free-flow TM technology
    • Virtually zero leakage
    • Low fouling tendency

    Scope of supply:

    • Flue gas Recuperative Heat Exchanger
    • Steam/Gas Heater instead of additional burners to increase flue gas temperature
    • Complete ductwork and support structure

    As an option:

    • Field Assistance supervision
    • Finite Elements Analysis (FEA) calculations
    • Computational Fluid Dynamic (CFD) calculations

    For more info, contact:

    Bartek Migas

    Sales and Process Manager

    Tel: +31 (0)70 300 42 42

    Dir: +31 (0)70 300 42 47

    APEX Group is a group of companies specialized in designing and manufacturing heat transfer equipment of proprietary design. CORPEX®, APEX-delfino® and A-CORREX® plate-type and tubular exchangers are custom designed units, taking into account the specific requirements of each application. We provide advanced engineering solutions for high performing heavy-duty gas/gas and gas/liquid equipment for heat recovery and environmental projects.

    Patented technology, based on 45+ years of experience in heat transfer, provides APEX Group a solid technical foundation and a strong competitive edge in today's market. As a result of substantial growth, APEX Group has been able to expand its fabrication, engineering and research and development facilities, to satisfy 300+ customers’ requirements with APEX tailored designs.

  • APEX Group’s Research and Development team proudly presents our latest innovation in Heavy Duty Heat Exchangers: APEX-delfino® Technology. The new technology optimizes flow distribution and influences turbulence for improved operation of Free-flow™ Plate-type Heat Exchangers.

    Large amounts of hot Fluegas and Air are guided through the tailored Plate-type Heat Exchanger. The volume flow rates can easily exceed 2,000,000 kg/h. The flow is guided in complex flow paths through the modular units such as pure cross-flow or countercurrent flow arrangement at even low Reynolds number with increased heat transfer.

    APEX-delfino® increases the effectiveness and the lifetime of the unit, thanks to corrosion protection, easy-access cleaning and reduced pressure drop at high heat transfer rates. APEX-delfino® Technology achieves a streamlined and uniform flow closely matching the ideal flow field characteristics with no flow separation.

    APEX-delfino® Technology is an agglomeration of improvements along the path of a fluid element, which is travelling through the Heat Exchanger starting at the centrifugal fan.  Amongst others, the APEX-delfino® Flow Conditioner™, as well as the APEX-delfino® Inlet Geometry and Guiding Blades condition the flow distribution for improved operation of our Plate-Type Heat Exchangers. Overall, this technology guarantees proper working conditions and increases the lifetime of the units.

    At booth K 73 you can have a glimpse of our experiments conducted in order to develop APEX-delfino® Technology; we have prepared an experimental set-up and will entertain you with laser optical measurement techniques applied on a scaled down flat plate-type Heat Exchanger model. The experimental set-up, which is equipped with a high end Particle Image Velocimetry System for flow visualization was especially designed to demonstrate how we study the flow fields in our Heat Exchangers.

    APEX Research B.V.

    Dr.-Ing. Jens Kitzhofer

    R&D Manager

    Tel: +31 (0)70 300 42 42

    Dir: +31 (0)70 850 57 73

    www.apexgroup.eu


 Products

  • Air Heaters, Air Preheaters
    The proprietary design plate-type heat exchangers developed, fabricated and supplied by APEX Group are heavy-duty exchangers for handling large volumes of gases for heat recovery and gas processing applications....

  • APEX Group is specialized in designing and manufacturing heat transfer equipment of proprietary design. CORPEX®, APEX-delfino® and A-CORREX™ (glass-enameled) plate-type exchangers are custom designed units, taking into account the specific requirements of each application. Typically, the technical specifications of APEX Plate-type Heat Exchangers consist of:

    1. Typical design temperature: up to 900 °C
    2. Typical pressure drop: 0-0.1 bar
    3. Standard design pressure: up to 1.5 barg
    4. Virtually 0% leakage: 0.05 - 0.5%
    5. Duty range: unlimited
    6. Typical plate thickness: 0.8 to 6.0 mm
    7. Customized gaps between Heat Transfer plates depending on the application
    8. Wide variety of material selection depending on the application

    The operating concept of these units is based on the Free-flow™ technology; the gas flow between smooth parallel plates is a pure plug-flow uniformly distributed over the entire width of the plate. This flow configuration results in a relatively low level of energy dissipation. Therefore, the flow type is most efficient, resulting into an optimum compromise between a high heat transfer coefficient and a reduced pressure drop. The net effect is that the required heat transfer area at same thermal duty and same pressure drop is less. APEX Group technology focuses on safe and corrosion free operation under all circumstances. This can be achieved by the use of Air Curtain® technology implemented in the cold-section of the Air Preheater, which is more prone to corrosion damages. More specifically, Air Curtain® technology controls the temperature of the heat transfer plates by keeping it above the acid and water dew point. The Air Curtain® consists of a stagnant layer of air between the heat transfer plates and the main air stream.

    In cases where operation below acid dew point is mandatory, the safe operation of the heat exchanger is achieved by applying corrosion-resistant glass layers on a metallic substrate (plate or tube). The glass layers can handle highly corrosive fluids (acid or water condensate) while metallic substrate imparts mechanical strength to heat transfer surfaces during operation or during water washing.

  • DeNOx Heat Exchangers
    Heavy duty heat exchangers dedicated to low NOx emission installations for flue gas reheating using APEX tubular Steam/Gas Heaters and heat recovery using APEX Gas/Gas Heaters....

  • This unique technology can be applied in DeNOx SCR tail-end installations with numerous advantages. More specifically, we are able to provide convenient placing of the SCR reactor on top of the Gas/Gas Heater due to integrated support structure, modular construction, countercurrent flow, high thermal effectiveness, virtually zero leakage, low fouling tendency and easy maintenance and cleaning due to our Free-flow™ technology.

    For DeNOx SCR tail-end technology, both our Gas/Gas Heater and Steam/Gas Heater are located downstream of other flue gas treatment equipment, such as Flue Gas Desulphurization (FGD), Electrostatic Precipitators (ESP) etc. As the tail-end SCR technology requires specific range of flue gas temperatures (from 250°C to 420°C), APEX Group creates the effective solutions for flue gas reheating by the Steam/Gas Heater and heat recovery by the Gas/Gas Heater. The flue gas temperature after our Steam/Gas Heater is reheated to the optimal condition for entering the SCR reactor. Part of the energy used to reheat the gas is recovered in our recuperative Gas/Gas heater. Our solution for DeNOx installations can be used in various industries such as Power (coal-fired, natural gas-fired, biomass-fired, oil fired) Incineration, Petrochemical, Pulp and Paper, Steel, Cement and Metallurgy.

  • Incinerators’ Heat Exchangers
    The proprietary design plate-type heat exchangers developed, fabricated and supplied by APEX Group are heavy-duty exchangers for handling large volumes of gases for heat recovery and gas processing applications....

  • APEX Group is a group of companies specialized in designing and manufacturing heat transfer equipment of proprietary design. CORPEX®, APEX-delfino® and A-CORREX™ (glass-enameled) plate-type exchangers are custom designed units, taking into account the specific requirements of each application. Typically, the technical specifications of APEX Plate-type Heat Exchangers consist of:

    1. Typical design temperature: up to 900 °C
    2. Typical pressure drop: 0-0.1 bar
    3. Standard design pressure: up to 1.5 barg
    4. Virtually 0% leakage: 0.05 - 0.5%
    5. Duty range: unlimited
    6. Typical plate thickness: 0.8 to 6.0 mm
    7. Customized gaps between Heat Transfer plates depending on the application
    8. Wide variety of material selection depending on the application

    The operating concept of these units is based on the Free-flow™ technology; the gas flow between smooth parallel plates is a pure plug-flow uniformly distributed over the entire width of the plate. This flow configuration results in a relatively low level of energy dissipation. Therefore, the flow type is most efficient, resulting into an optimum compromise between a high heat transfer coefficient and a reduced pressure drop. The net effect is that the required heat transfer area at same thermal duty and same pressure drop is less. APEX Group technology focuses on safe and corrosion free operation under all circumstances. This can be achieved by the use of Air Curtain® technology implemented in the cold-section of the Air Preheater, which is more prone to corrosion damages. More specifically, Air Curtain® technology controls the temperature of the heat transfer plates by keeping it above the acid and water dew point. The Air Curtain® consists of a stagnant layer of air between the heat transfer plates and the main air stream.

    In cases where operation below acid dew point is mandatory, the safe operation of the heat exchanger is achieved by applying corrosion-resistant glass layers on a metallic substrate (plate or tube). The glass layers can handle highly corrosive fluids (acid or water condensate) while metallic substrate imparts mechanical strength to heat transfer surfaces during operation or during water washing.

  • Steam/Gas Heat Exchangers
    APEX Group offers a range of tubular exchangers of proprietary or conventional design used as heat recovery units for a diversity of fired and non-fired installations....

  • APEX Group’s tubular exchangers may be supplied as stand-alone heat recovery units or in combination with plate-type and glass enamelled or Teflon coated exchangers to form complex, integrated heat recovery units.

    Fluids Handled

    These products are suitable for handling a large diversity of fluids, such as:

    • Air
    • Fluegas from combustion of: gaseous fuels, liquid fuels, coal, wood, solid waste
    • Steam, water, glycol, oil
    • Vapour, condensing or non-condensing
    • Process Streams
    • Industrial exhaust streams

    Aluminium Finned Products

    Steel tubes with aluminium fins, produced under high standards of quality by APEX Group using highly qualified personnel, are suitable for handling only clean gases, most commonly air. APEX Group offers a diversity of designs specially developed for applications such as air tempering and air preheating for combustion processes and for the process industry. The heating medium is steam, water/condensate, or water/glycol mixtures for freezing environments. APEX Group also sells Finned tubes directly.

    Steel Finned Products

    For heavy-duty environments, such as fluegases or industrial gases, the tubular coils are made of steel tubes with welded steel fins. Such units of a conventional design are used as convection section modules and gas-cooling modules for fired heaters, environmental projects, process industry, etc.

    Bare Tube Products

    For applications with excessive fouling tendency or with excessively high temperatures the coils are made of bare tubes. On-line water washing devices may be provided for moist and/or dust-laden gases operating at low temperatures. Bare tube products may be designed in combination with finned products to cover a wider range of process conditions within the same apparatus.

  • Water/Gas Heat Exchangers
    APEX Group offers a range of tubular exchangers of proprietary or conventional design used as heat recovery units for a diversity of fired and non-fired installations....

  • APEX Group’s tubular exchangers may be supplied as stand-alone heat recovery units or in combination with plate-type and glass enamelled or Teflon coated exchangers to form complex, integrated heat recovery units.

    Fluids Handled

    These products are suitable for handling a large diversity of fluids, such as:

    • Air
    • Fluegas from combustion of: gaseous fuels, liquid fuels, coal, wood, solid waste
    • Steam, water, glycol, oil
    • Vapour, condensing or non-condensing
    • Process Streams
    • Industrial exhaust streams

    Aluminium Finned Products

    Steel tubes with aluminium fins, produced under high standards of quality by APEX Group using highly qualified personnel, are suitable for handling only clean gases, most commonly air. APEX Group offers a diversity of designs specially developed for applications such as air tempering and air preheating for combustion processes and for the process industry. The heating medium is steam, water/condensate, or water/glycol mixtures for freezing environments. APEX Group also sells Finned tubes directly.

    Steel Finned Products

    For heavy-duty environments, such as fluegases or industrial gases, the tubular coils are made of steel tubes with welded steel fins. Such units of a conventional design are used as convection section modules and gas-cooling modules for fired heaters, environmental projects, process industry, etc.

    Bare Tube Products

    For applications with excessive fouling tendency or with excessively high temperatures the coils are made of bare tubes. On-line water washing devices may be provided for moist and/or dust-laden gases operating at low temperatures. Bare tube products may be designed in combination with finned products to cover a wider range of process conditions within the same apparatus.

  • FEA/CFD Simulations and Projects
    APEX Group Technology is supported by the conduction of Advanced Software Analyses for our equipment, including Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA)....

  • Computational Fluid Dynamics (CFD) Analysis is used for flow simulation of complete systems in which our equipment and systems are incorporated. It is performed in order to detect and eliminate mal-distribution of flow and temperatures caused by ductwork layout, fans or other adjacent equipment. It can be applied both in external projects to check customer’s installation and in internal APEX projects for product development. Additionally, FEA software is used for the simulation of the metallic structures formed by (or adjacent to) the equipment and its associated support components and ductwork. The simulation covers static and dynamic (typically seismic) loading, according to the code imposed by the project specifications.

  • Advanced Laboratory Visualizations (LDA/PIV)
    APEX Group’s R&D department applies advanced techniques for flow measurement and visualization to analyze the complex heat transfer phenomena taking place in our equipment, including Laser Doppler Anemometry (LDA) and Particle Image Velocimetry (PIV)....

  • APEX Group’s R&D department applies advanced laboratory measurement instrumentation for flow analysis and visualization, to understand the complex phenomena existing in APEX heat exchangers, including Laser Doppler Anemometry (LDA) and Particle Image Velocimetry (PIV). Transparent models (scaled up to 1:1, made from plexi glass or glass) are constructed to simulate real conditions, fulfilling the similarity theory for experimental fluid mechanics. Laser Doppler Anemometry (LDA) is the most accurate technique to measure the conditions of the fluid flow. The measurement is performed with 2D and 3D crossing laser-beam systems, while all flow parameters (e.g. 3D-velocities, turbulence level, time fluctuations, etc.) are processed by specialized software. LDA is highly time resolved for velocity measurement in one point with high spatial resolution. Particle Image Velocimetry allows to quantitatively image a planar velocity vector field by the usage of a high energy pulsed laser light sheet in combination with a CCD or CMOS camera. The achievable frequencies can reach 10.000 frames/s. PIV is best suited for the analysis of coherent flow structures like separation regions or global velocity field characteristics (e.g. boundary layer development).


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