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Avs Engineering Co.
Avs Engineering Co.


Air Dryers

AVS Engineering Co,is Manufacturers, Exporters and Suppliers of Industrial Machinery and Dryer like all type Air Dryers.

Heatless Air Dryer

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Heatless Air Dryer
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Heatless Type Air Dryer.

Operating Principal:

In Heatless Dryers, two vessel filled with desiccant are provided which cycle automatically, producing dry air continuously. In these units, wet air enters the bottom of one Vessel and passes upwards through the desiccant bed where the moisture is adsorbed. The dry air comes out from the top. A small portion of dry air is passed downwards through the desiccant bed in second vessel, which is under re-generation. Moisture laden purge air is then vented out to atmosphere.

The purge loss is around 7.5% of the total air flow. At preset interval, the vessel changeover automatically, and Dry air is available continuously, without any surge.

Easy Operation:

This is simplest type of air dryer with Activated Alumina / Molecular Sieves drying agent. This is virtually maintenance free, fully automatic, and requires no attention for year heatless type dryers do not require any heating for re-generation and therefore are very simple in design and maintenance free.

Low Operating Cost:

· Due to its inherent simple design, investment in this type of dryer is the cheapest and the payback on this investment is very quickly.

· Low Temperature operation reduces corrosion in tower and desiccant lasts longer.

· Power requirement is 60 watt only for Solenoids Valves Operation.

Capacity:

· Air Capacity: 5 to 10000 NM3/Hr.

· Dew Point : Up to (-) 60°C

· Operating Pressure: 5 to 35 Kg/cm2g

 

 



      Additional Information:

      • Minimum Order Quantity: 1 Set
      • Pay Mode Terms: L/C (Letter of Credit),D/A,T/T (Bank Transfer)
      • Port of Dispatch: Any Port in India
      • Delivery Time: As per Order and Requirement
      • Packaging Details: As per Order and Requirement
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      Heat of Compression type Air Dryer

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      Heat of Compression type Air Dryer
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      Heat of Compression / HOC Type Air Dryer.

      HOC type dryer has NIL operating cost in this design hot air coming out from Air compressor discharge is used for regeneration of desiccant and so no external electric regeneration heating is required. This design easily produces dry air of (-) 40° C Dew Poin.t

      Technical Specifications:

      Air Capacity: 500 to 5000 NM3/hr.

      Dew Point : Up to (-) 40°C

      Operating principle:

      The Heat of Compression dryers (HOC) are the latest generation chemical dryers based on adsorption principle. It does not have complex valuing & is eliminated with purge loss drawback as in heatless type dryer.

      The hot air from the Compressor at 120°C and higher temp. is used directly for regeneration of the desiccant. After regeneration, this air is cooled down to 40°C and then it is dried in second tower. Thus, the use of heaters is eliminated. For e.g. in the 6+6 Hrs. Cycle the hot air is fed for regeneration for 4 Hrs. and for balance 2 Hr. a changeover takes place where the air is first

      Cooled in cooler, then dried and before going to the outlet, cools the regenerated desiccant bed, thus bringing it down to ambient temperature. This cycle is reversed for the next 4Hrs. where the Absorber drying the air in the previous cycle goes for regeneration and vice versa.

      Salient Features:

      • No Power requirement for regeneration
      • No loss of compressed air
      • Maintenance is easy as there are no Blower no Heaters, and no moving parts
      • Low pressure drop across the dryer less than 0.3 kg/cm2
      • Continuous duty with long efficient service life
      • Easy to install and user friendly
      • Fully Automatic continuous operation

      Applications:


      Mass quantity instrument, process air in chemical industries & other engineering applications where mass volume air may be required.

       

       

       

       

       

       



        Additional Information:

        • Minimum Order Quantity: 1 Set
        • Pay Mode Terms: L/C (Letter of Credit),D/A,T/T (Bank Transfer)
        • Port of Dispatch: Any Port in India
        • Delivery Time: Order and Requirement
        • Packaging Details: Order and Requirement
        Yes! I am Interested

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        Internal Heat Reactivated type

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        Internal Heat Reactivated type
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        Internal Heat Re – activated type.

        Heat Reactivated Air Dryer
        is used when one needs compressed air of very low dew point of (-) 60o C or 80oC. In Heat Reactivated Air Dryer, the desiccant is regenerated at higher temperature, along with small quantity of dry air purge. Due to purging with dry air and thermal regeneration, residual moisture loading on desiccant becomes low and this gives very low dew points.

        Operating Principle
        The drying unit has 2 vessels filled with Activated Alumina or Molecular sieves desiccant. One vessel remains in drying cycle for 4 hours, while other vessel is simultaneously regenerates at atmospheric pressure. Around 3% flow of dryer capacity is used as purge for regeneration. Electrical heaters are provided in a central finned stainless steel pipe in both drying vessels. Heating cycle is for 2 hours and in this time hot purge air increases desiccant temperature to around 100 degree c. At this temperature, regeneration is complete (due to dry air purge). Dew point achieved is around 40 degree c. If still lower dew point is required, air-purging rate is slightly increased to 5% for 60 degree C and to 7.5% for 80 degree C DEW point requirements.

        Filters
        A pre-filter with automatics drain valve is provided to remove any physical moisture from Compressed air before entering air Dryer. A Micron filter is also provided in dryer outlet to arrest any desiccant dust particles, up to 1 micron size. Thus you get absolutely “Clean & dry compressed air.

        Features

        • A fully automatics unit requiring no attention of the operator
        • Heaters switch ON/Off and all valves operate automatically
        • Pressure is equalized to line pressure before changeover of drying vessels. This prevents pressure and flow surge and desiccant dusting.
        • Low-pressure air requirement in compression to heatless type air dryer
        • Desiccant life is around 5 year
        • Internal heaters provided maximum heat transfer efficiency resulting in lower power requirements
        • Counter current heated dry purge air provides maximum removal of moisture with minimum gas purge loss
        • Heaters are not in physical contact with the desiccant resulting in long life or desiccant


        Capacity

        • Air Capacity : 5 to 5000 Nm3/Hr
        • Dew Point : Up to (-) 40o C to (-) 80o C
        • Operating Pressure : 5 to 35 Kg/cm2g



          Additional Information:

          • Minimum Order Quantity: 1 Set
          • Pay Mode Terms: L/C (Letter of Credit),D/A,T/T (Bank Transfer)
          • Port of Dispatch: Any Port in India
          • Delivery Time: Order and Requirement
          • Packaging Details: Order and Requirement
          Yes! I am Interested

          Refrigerated Air Dryer

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          Refrigerated Air Dryer
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          Technical Specifications.

          • Air Capacity: 50 to 5000 NM3/Hr.
          • Dew Point : Up to (-) 25°C
          • Operating Pressure: 1 to 50 Kg/cm2g

          Principal
          :

          For lager air drying capacities, typically above 5000 NM3/ hr we offer. It is a skid mounted unit consisting of air-Freon chiller Air to Air pre-cooler and a moisture separator. First air is pre-cooled with outing chilled air to around 25°C and then it is cooled in a Freon cooler to (+)3°C temperature. This reduces power consumption. Outgoing dry air has (+)3°C Pressure Dew Point and comes out at around 25 C temperature. (+) 3°C Dew Point is equal to around (-) 25°C Atmospheric pressure Dew point.

          Dew Point
          :

          (-) 25°C is the best possible Dew Point achievable from Refrigerated Air Dryers. Lower Dew Point is not possible from Refrigerated Dryer as moisture condensed would start freezing on Freon tubes if lower dew point are tried. This (-) 25°C Dew Point is adequate for most dry air applications and instrument air requirements.


          Additional Information:

          • Minimum Order Quantity: 1 Set
          • Pay Mode Terms: L/C (Letter of Credit),D/A,T/T (Bank Transfer)
          • Port of Dispatch: Any Port in India
          • Delivery Time: Order and Requirement
          • Packaging Details: Order and Requirement
          Yes! I am Interested

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          External Heat Re-activated type Air Dryer

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          External Heat Re-activated type Air Dryer
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          External Heat Re-activated type Air Dryer.External heat reactivated air dryers are bulky in size and power consumption is all most is double as compare to internal heat re-activated type air dryer in capacity Less than 500 Nm3/hr these are un- commercial  and not recommended   also since regeneration of desiccant is by atmospheric air. These dryers give the dew point only up to (-) 40°C Capacity:

          ·         Air Capacity: 500 to 5000 Nm3/Hr.

          ·         Dew Point   :   Up to (-) 40°C

          ·         Operating Pressure:  5 to 35 Kg/cm2g

          Operating Principle:

          In this design there is no loss  of compressed air time cycle is 6+6 Hrs with (-)  drying towers filled with silica gel desiccant for regeneration , a centrifugal air blower and an electrical heater is provided desiccant is heated up to 200°C by hot air of completely    re –generation

          Compression with internal heat re-activated type air dryer:

          ·         Investment cost of these Air dryer is all most double as compared to internal heat re-activated air dryers.

          ·         It is recommended to go for this type of dryer only when loss compressed air during regeneration is not acceptable and dew point required is not critical also these are recommended for capacities above 500Nm3/hr only. Operating pressure can be from 1 to 50 kg/cm2g.

           

           

           

           

           

           



          Additional Information:

          • Minimum Order Quantity: 1 Set
          • Pay Mode Terms: L/C (Letter of Credit),D/A,T/T (Bank Transfer)
          • Port of Dispatch: Any Port in India
          • Delivery Time: Order and Requirement
          • Packaging Details: Order and Requirement
          Yes! I am Interested

          View PDF
           
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          Call Us: +91-8071804484
          Avs Engineering Co.
          Harendra Sharma (Proprietor)
          SF-1, 22 Ghyankunj Society Opposite M. S. Co- Operative Bank, Abhilasha Char Rasta, New Sama Road,
          Vadodara - 390024, Gujarat, India
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