Refrigeration Dryers
     



    Trident Refrigeration Compressed Air Dryer is an ideal solution for clean and compressed dry air. It is the result of extensive design and prototype testing and provides a consistent dew point of +3 c. Compared to other Air Dryers the HX Series of Trident has a very low running cost.

    Operation

              Warm compressed air enters the Air/Air heat exchanger where it is precooled by outgoing cold refrigerated air. Pre-cooling makes it possible to use a smaller (more economical) refrigeration Unit. Then the pre-cooled air enters the Air to Refrigerant heat exchanger where it is cooled down to +3 c. At this cool temperature, water condenses into liquid droplets, which are removed from the air stream by a very efficient Demister and automatically discharged to drain by a Trident Automatic drain valve.

              The cold dry compressed air passes back through the secondary side of the Air to Air heat exchanger where it is reheated by the incoming warm air. Reheating the outgoing compressed air increases the volume of the air enabling it to do more work and it also prevents downstream pipe sweating. Trident heat exchanger has no extended surfaces or sharp corners that collect dust, dirt or oil residue. Their self cleaning smooth surface tube in shell and tube design will maintain the same heat transfer efficiency through out the dryer's life. Any dust, dirt or oil will be washed from the air system along with the condensed moisture at the De-mister.

    Salient Features

      Condensing Temperature control for ambient Temperature variations.
      Hot gas by-pass circuit for partial load.
      Maintains constant pressure dewpoint.
      Compressor safety through HP cut switch.
      The advanced mimic display indicates the functions & faults if any.
      Trident Automatic Drain Valve provided in Demister & Heat exchangers
        for effective Dryer functioning.

    Application

              Trident Refrigeration Dryers are suitable for all compressed air systems like :

      Plant Air
      Machines
      Cylinder applications
      Foundry
      Textiles
      Engineering
      Glass blowing

    Specification of Dryer

    Model

    Flow in
    cfm
    Power Consumption in KW* End
    Connection
    Dimensions in mm **Heat
    Exchanger
    Weigh
    in Kg
    A S H W D
    R 134a R 22 R 134a R22
    Coldspell 40 40 - - 0.36 - 1 ff BSP 600 450 550 BPH 55
    1 ff BSP 700 450 480 IHE 55
    Coldspell 50 50 - - 0.36 - 1 ff BSP 600 450 550 BPH 55
    1 ff BSP 700 450 480 IHE 55
    Coldspell 60 60 - - 0.36 - 1 ff BSP 600 450 550 BPH 55
    1 ff BSP 700 450 480 IHE 55
    Coldspell 80 80 - - 0.85 - 11/2ff BSP 820 500 600 BPH 70
    1 ff BSP 710 480 530 IHE 60
    Coldspell 100 100 - - 0.85 - 11/2ff BSP 820 500 600 BPH 70
    1 ff BSP 710 480 530 IHE 60
    Coldspell150 150 - - 1.02 - 11/2ff BSP 1000 650 800 BPH 110
    Coldspell 200 200 1.37 - - 1.44 2ff NB 1000 650 800 BPH 130
    Coldspell 250 250 1.37 - - 1.44 2ff NB 1000 650 800 BPH 130
    Coldspell 300 300 1.37 - - 1.85 2ff NB 1320 950 1150 BPH 240
    Coldspell 400 400 1.70 - - 2.40 2ff NB 1320 950 1150 BPH 260
    Coldspell 500 500 1.91 - - 2.40 2V2ff NB 1320 950 1150 BPH 290
    Coldspell 650 650 2.68 - - 3.30 2V2ff NB 1375 1150 1300 BPH 350
    Coldspell 800 800 2.68 - - 4.00 3ff NB 1580 1380 1530 BPH 490
    Coldspell1000 1000 3.59 - - 4.80 3ff NB 1580 1380 1530 BPH 580
    Coldspell 1200 1200 5.05 - - 3.92 4ff NB 1530 1280 1530 BPH 620
    Coldspell 1500 1500 5.80 4.78 - - 4ff NB 1380 1280 1080 BPH 900
    Coldspell 2000 2000 7.10 7.25 - - 6ff NB 1750 1480 1980 BPH 1020

    For any other capacity contact factory. Specifications are subject to change without notification.
    * Power consumption will be low for use of water cooled condenser instead of air cooled.
    ** IHE -Integral Heat Exchanger. BPH -Brazed Plate Stainless Steel Heat Exchanger.

     

    Correction Factor

              For different inlet conditions choose the correction factors from the table below
     
    Air Temperature (Ti)

    30

    38

    45

    50

    Correction Factor

    1.14

    1

    0.83

    0.71

    Inlet pressure (Kg / cm2(g))

    5

    7

    9

    12

    Factor (Pi)

    0.84

    1

    1.11

    1.21

    Ambient temperature (Ta)

    25

    30

    38

    43

    Factor

    1.36

    1.18

    1.0

    0.86


    Correction flow     =     Actual flow
                                           Pi x Ti x Ta

    Then choose the nearest higher model

    Ordering Code
     
     Electricals
    1 -230 V -50 Hz 1 Phase (Standard for models 40 to 300)
    2- 415 v- 50 Hz 3 Phase (Standard for models 400 & above)
    3 -110 V -60 Hz 1 Phase (Optional)
    4- 230 V -60 Hz 1 Phase (Optional)
    5 -380 V -50 Hz 3 Phase (Optional)
      Example
    For selection of
    Coldspell 40: 1 2 A IS 40

     
    1 - 230 V -50 Hz 1 Ph;
    2 - R 134a;
    A - Air Cooled;
    I - Integral Heat Exchanger;
    S - Standard Hermatic
    Reciprocating;
    40 - Working Pressure
       
    Gas
    1 R 22 (Standard for models 200 & above)
    2 R 134a (Standard for models 40 to 150)
    3 R 407c (Optional from models 200 & above)
       
    Condensor
    A -Air Cooled (Standard for models 40 to 1000)
    W- Water cooled condensor (Standard for models 1200 & above)
       
    Heat Exchanger
    I: Integral Heat Exchanger
    P : Zero leak brazed plate heat exchanger (standard)
       
    Compressor

    A : Advanced Hermatic
    S : Standard Hermatic Reciprocating

       
    Working Pressure
    40 Kg / cm2