VAKAHEMCE heat exchangers

The VAKAHEMCE type heat exchanger is made up a bundle of tubes made of smooth coiled tubes, cylindrical shell and inlet and outlet nozzles for fluids. The heat exchanger design can be in a vertical position only. This type of exchanger is very effective, but has its limitations as regards cleanliness of operating fluids. It is used for example as a condensing heat exchanger.

In specific systems VAKAHEMCE construction design can achieve extremely compact design with diameter approx. of 500 mm and height approx. of 700 mm. In production facilities, where it is required to utilize large amount of waste heat to heat up two different mediums (in exm. thermo oil and heating water), are dimensions of design variant DUOHEMCE usually around 1500 mm of diameter and 2500 mm of hieght.

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  • VAKAHEMCE heat exchangers
  • VAKAHEMCE heat exchangers

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    References

    Cooler of exhaust gases
    Baška, FERRIT spol. s r.o.
    MoreŠipka
    Exchangers for heating light heating oil
    Bratislava, Slovensko, VEMAPOS, s.r.o.
    MoreŠipka
    The condensing flue gas heat exchanger
    Franke Slovakia s.r.o., Strečno, Viessmann, spol. s r.o., Bratislava
    MoreŠipka

    Custom production of heat exchangers type VAKAHEMCE. Main attributes of heat exchanger type VAKAHEMCE:

    • Small construction area.

    • Selectable ratio between pressure drop and power output.

    • This heat exchanger is suitable for condensing operation.

    Because a high countercurrent is secured inside of the body of the VAKAHEMCE heat exchanger, it is included in the category of high efficiency. Another advantage over the other exchangers is the increased heat transfer coefficient is due to the turbulent environment inside the tubes. In the VAKAHEMCE heat exchanger, spiral tubes are used, which give the medium a higher velocity and in addition, dilatation of the tubes is ensured.

    This type of heat exchanger can be used as a condensing exchanger or as an evaporator. The feedback on VAKAHEMCE from our clients is very good, when they use it behind the natural-gas boiler as a condensing exchanger, where the temperature difference of 3,9 Kelvin is on flue gases at outlet and water inlet. The feedback on VAKAHEMCE from our clients is very good, when they use it behind a natural-gas boiler as a condensing exchanger, where the temperature difference between the flue gas outlet and water inlet is 3,9 Kelvin (3,9 °C) or in a non-condensing process the difference is 1 Kelvin.

    Recommended use of heat exchanger

    The heat exchanger type VAKAHEMCE is not primary suitable for heavily polluted flue gases. In this case, structural changes are necessary for this type of heat exchanger, which is interesting for its compactioness and low construction requirements while maintaining high efficiency. To ensure the whole vessel can be deaerated, only vertical position of heat transfer pipes is available for this type of heat exchanger. Orientation of the VAKAHEMCE to a horizontal position is only possible if both media are gaseous.

    Advantages of heat exchanger type VAKAHEMCE:

    • High efficiency.

    • Good ratio price/power/weight.

    Disadvantages of heat exchanger type VAKAHEMCE:

    • Only vertical position is available if using water inside tubes.

    • Only for clean operation.

    If you have any questions do not hesitate to call us. We will be happy to discuss all of your requirements for the type of heat exchanger type VAKAHEMCE.