“Desuperheater” High Efficient Energy conservation Device for Refrigeration Use

“Desuperheater” High Efficient Energy conservation Device for Refrigeration Use

Introduction:

Desuperheater is basically an energy conserving device used by the industries where the large amount of heat energy is generated. Maniks are having comprehensive range of desuperheater supply since last three decades. Maniks introduced variety of desuperheaters with precise temperature control for various applications in chemical or oil & gas process plants where the available refrigerant is at superheated conditions. These Desuperheaters have high performance, custom design, easy to install and requires very low maintenance.

Types of Desuperheater:

Desuperheating is the process by which superheated steam is restored to its saturated state, or the superheat temperature is reduced.  Basically there are two types of super heaters

  • Indirect contact type – The medium used to cool the superheated steam does not come into direct contact with it. A cooler liquid or gas may be employed as the cooling medium, for example, the surrounding air. Examples of this type of desuperheater are shell and tube heat exchangers.
  • Direct contact type – The medium used to cool the superheated steam comes into direct contact with it. In most cases, the cooling medium is the same fluid as the vapour to be desuperheated, but in the liquid state. For example, in the case of steam desuperheater, water is used.

Working of a Desuperheater:

Water or a liquid used inside the desuperheater comes in to contact with the superheated steam or heat energy and by absorbing the energy from steam superheated liquid will evaporates and reduces steam temperature. This simple technique is used to minimize the temperature of the steam. The outlet steam temperature is maintained by the quantity of the water or superheated liquid that is evaporated.

To reduce the time of suspension of the water particles in the steam it is proposed to inject hot water near the saturation temperature of the steam to be cooled so that the latent heat is extracted to evaporate the injection water.

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Maniks Desuperheater:

Maniks are having comprehensive range of desuperheater supply since last three decades. Maniks introduced variety of desuperheaters with precise temperature control for various applications in chemical or oil & gas process plants where the available refrigerant is at superheated conditions. This Desuperheater has high performance, custom design, easy to install and requires very low maintenance.

In the normal refrigeration cycle, a refrigerant gas such as ammonia, Freon is compressed in a compressor, passes through a condenser where it gives off heat and changes to a liquid state and then is passed through an expansion valve to an evaporator coil to absorb heat and change the refrigerant back to a gaseous state for’ recompressing in the compressor to complete the refrigeration cycle. The evaporator coil is positioned within a refrigerated box, display case, or cabinet and the heat absorbed by the refrigerant passing through the coil serves to extract heat from the refrigerated box and its contents to maintain the box at the desired temperature. As is well known, this extracting of heat from the refrigerated box’ and its contents causes frost to form on the evaporator coil and refrigerated box which periodically must be removed to maintain proper functioning of the evaporator coil and avoid undesirable build-up of frost on the coil or other parts of the refrigerated box.

There are two types of desuperheater manufactured by Maniks

  • Freon Desuperheater – SERIES HEF 33- XXX- 22
  • Ammonia Desuperheater – SERIES HEA 77- XXX- 717

 Design Features:

  • High efficient atomization.
  • Accurate and repeatable control fluid temperature.
  • Tight shut off variable spray unit.
  • High rangeability variable area spray unit.
  • Erosion resistance materials of selection.
  • Ease of installation.
  • Low maintenance features.
  • High integrity sealing arrangement.
  • Thoroughly checked at factory to ensure that it meets the specified performance on site with high integrity.
  • Quality assurance at every stage of manufacturing.
  • Comprehensively designed and tested to ensure its optimum performance for the tough process Parameters specified.

 

Advantages:

Maniks desuperheater has number of advantageous points some of them are listed beneath

  • Reduction in condenser pumps power consumption.
  • Minimal pressure drop
  • Compact designs
  • Design code compliant
  • Range of outlet superheat capabilities
  • Variety of standard materials
  • Horizontal or vertical orientation with upward flow

Applications of Desuperheater:

Because of high quality performance Maniks desuperheater is used by various industrial applications some of them are listed below

  • HOTELS & HOSPITALS:

Water for Bathing/ Sterilizing/ Kitchens/ Laundries

  • PHARMACEUTICAL & CHEMICAL:

Dehumidifiers/ Calorifiers/ Autoclaves/ Boiler Feed/ Air Preheating/ Tablate Coating Machines

  • DAIRY & FOOD PROCESSING:

Hygienic Washing & Cleaning/ Boiler Feed/ Chocolate Tracing/ Powder Drying/ Dehumidifiers

  • TEXTILE:

Dehumidifiers/ Yarn Drying/ Preheating/ Boiler Feed

  • ENGINEERING & AUTOMOBILE:

Boiler Feed/ Degreasing/ Washing & Cleaning/ Paint Shop Processes

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