Heat Exchangers

GRAPHITE SHELL AND TUBE HEAT EXCHANEGERS SHELL & TUBE HEAT EXCHANGERS COIL CONDENCER

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SALIENT FEATURES OF SHELL AND TUBE HEAT EXCHANGER :

1. Universal corrosion resistance an excellent alternative to expensive MOCs like graphite, hastelloy, copper titanium, tantalum and other exotic metals.
2. Excellent heat transfer as fouling does not occur on smooth glass surfaces.
3. Flexibility of installation vertical/horizontal.
4. Easy replacement of tubes for repair and cleaning.
5. Available in wide range of HTAs.
6. Ease of installation due to light weight.
7. Economical.
8. Suitable for applications where large HTAs are required in limited space.

ADVANTAGES OF SHELL AND TUBE HEAT EXCHANGER OVER CONVENTIONAL COIL TYPE HEAT EXCHANGERS :

1. The overall heat transfer coefficient in shell and tube heat exchanger is about 3 times higher than in coil type heat exchanger.
2. The pressure drop in shell and tube heat exchanger is minimal compared to 2-3 kg/cm2 in the coil side of coil type heat exchanger.
3. For the requirement of higher heat transfer areas shell and tube heat exchanger is the only alternative.

CONSTRUCTION FEATURES OF SHELL AND TUBE HEAT EXCHANGER :

The glass tubes are sealed individually into PTFE tube sheet with special PTFE sockets and packing. This unique ferrule type sealing arrangement permits easy replacement and cleaning of tubes. Baffles on shell side ensure improved heat transfer by increased turbulance. Further details of construction can be seen in the diagram.

Three basic versions * are available :

Material Of Construction of Shell & Tube Heat Exchanger
 Model Shell Tube Header Duty
 RGG Glass Glass Glass For heat transfer between two aggressive media.
 RGM Glass Glass Steel/FRP For heat transfer between aggressive media in shell & non-aggressive media in tubes. 
 RMG Steel/FRP Glass Glass For heat transfer between aggressive media in tubes & non-aggressive media in shell
 * GOEL provides assistance to clients for selecting the right model for specific duty.

* GOEL provides assistance to clients for selecting the right model for specific duty.

DIMENSIONAL SPECIFICATIONS OF SHELL AND TUBE HEAT EXCHANGER :

 

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Cat.Ref.
 RGG/RMG		 6/3 6/4 6/5 6/6 9/6 9/8 9/10 9/12 12/12 12/16 12/21 12/25
Area (m2) 3 4 5 6 6 8 10 12 12 16 21 25
 DN 150 225 300
 DN1 80 100 150
 DN2 50 80 80
 DN3 25 40 40
 DN4 50 50 50
 H1 175 250 300
 H2 150 200 250
 L 2500 3100 3700 4300 2620 3220 3820 4520 2550 3150 3950 4550
 L1 1900 2500 3100 3700 1900 2500 3100 3800 1800 2400 3200 3800
 L2 150 150 150 150 225 225 225 225 225 225 225 225
 L3 1600 2200 2800 3400 1450 2050 2650 3350 1350 1950 2750 3350
 L4 250 250 250 250 300 300 300 300 300 300 300 300
 L5 125 125 125 125 175 175 175 175 175 175 175 175
 L6 1980 2580 3180 3780 2000 2600 3200 3900 1930 2530 3330 3930
 T 50 60 75
 No. of   Tubes 37 73 151
 No. of  Baffles 11 15 19 23 7 9 13 17 5 7 9 11