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HEAT-EXCHANGE EQUIPMENT

A heat exchanger (HE) is a device for transferring heat from one medium to another. Mediums (heat carriers) can be liquid and gaseous. Industrial heat exchange equipment is an integral part of power plants and is actively used in food, chemical, oil and gas industries, housing and utilities. This type of equipment is mainly used for heating-cooling of circulating liquids: water, oil, electrolyte, various emulsions.

TYPES OF HEAT EXCHANGERS

  • Surface. The media exchange heat through the walls of the heat-conducting material. Heat is transferred from the primary coolant to the heat exchange surface and then to the secondary coolant. Contact surfaces are plates or tubes.
  • Mixing surfaces. Heat is transferred directly between mixing media. These units are structurally simpler than surface units, but are only suitable for applications where the heat transfer media can be mixed. They include barboters, cooling towers, nozzle heaters.

    Surface heat exchangers are divided into regenerative and recuperative units:
  • Regenerative (regenerators). Heat is transferred by alternating contact of media of different temperatures with a single surface of the device. The movement of heat carriers is periodic: warm stream - cold stream.
  • Recuperative. The media exchange heat continuously through a separating surface. The direction of flow is the same or opposite, but the paths do not change alternately (unlike regenerators) and the heat exchange process is stationary.

    In simple situations, when high heat transfer is not required, single-pass heat exchangers are relevant - they are structurally simpler, less frequently serviced and less fouled. Multi-pass units are used when it is necessary to increase the overall heat transfer coefficient. This is achieved by increasing the area of contact between the media and the heat exchange surface.

    HEAT EXCHANGE EQUIPMENT

  • Cooling Evaporators, Borsig
  • Pakinox type shell-and-plate heat exchangers
  • Heat exchangers with anode protection
  • Spiral coiled heat exchangers
  • Compabloc type plate heat exchangers
  • Spiral heat exchangers Shell and tube heat exchanger / Condenser / Evaporator / Preheater

    QUENCHING AND EVAPORATION MACHINES, BORSIG

    Quenching and evaporation apparatus (HEA) is a tubular heat exchanger for cooling and quenching of gas streams, which are emitted during various technological processes.
    . HEA is the main element of installations for production of ethylene, propylene and other olefins from hydrocarbon raw materials.

    SHELL AND PLATE HEAT EXCHANGERS. PAKINOX TYPE

    SHELL AND PLATE HEAT EXCHANGERS. PAKINOX TYPE

    HEAT EXCHANGERS WITH ANODE PROTECTION

    Heat exchangers with anode protection are used for cooling sulfuric acid. The high temperature and concentration of the acid causes corrosion of the commonly used material. Stainless steel can be protected in such cases by anodic passivation of the metal surface. During anodic polarization, if the current reaches a sufficient value, a passivation film with high corrosion resistance is formed on the metal surface. In case of further current supply, but with a lower value, the metal surface remains in a passive state, which can lead to almost complete cessation of corrosion damage.

    SPIRAL WOUND HEAT EXCHANGER

    SPIRAL WOUND HEAT EXCHANGER

    PLATE HEAT EXCHANGERS OF COMPABLOC TYPE

    Field of application: oil refining, chemical industry.
    Similar manufacturers: Alfa-Laval, Kelvion Holding GmbH, Danfoss, API Heat Transfer, Tranter.
    Automatic laser welding of heat-exchange plates.

    SPIRAL HEAT EXCHANGERS SHELL AND TUBE HEAT EXCHANGER / CONDENSER / EVAPORATOR / PREHEATER

    SPIRAL HEAT EXCHANGERS SHELL AND TUBE HEAT EXCHANGER / CONDENSER / EVAPORATOR / PREHEATER

    Aluminum Heat Exchangers

    Aluminum Heat Exchangers.
    Dimensions up to 9000(L)*1400(H)*1700(W) and nominal pressure up to 15.0 MPa.

    Core competencies in the design and production of equipment for aluminum plate-fin heat exchangers:
    The plate-fin heat exchanger design team can independently perform heat exchanger design, including thermal design, fin selection, duct placement, and other structural design and fabrication.
    Focus on heat exchanger resistance and temperature difference.
    When product purity requirements are high, we take the initiative to detect helium leakage.


    Compact design, heat transfer area up to 1000 -1500m2/m3
    High heat transfer efficiency, energy saving and efficiency, with secondary heat transfer zone


    Vacuum brazed aluminum plate-fin heat exchangers:
    -Large liquefied aluminum plate fin heat exchanger
    - Large tower top condenser
    - High efficiency aluminum plate fin heat exchanger for hydrogen liquefaction
    - High efficiency aluminum plate fin heat exchanger for helium liquefaction
    -High efficiency aluminum plate-fin heat exchanger for recovery of helium from boil-off gas
    - Bottom tower reboiler


    • To order the above equipment from UNICS ENGINEERING LLC you can:

    - Call us by phone +7 (495) 648-62-78
    - Send a request to e-mail office@unix-eng.ru
    - Ask a question on our website

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