The shell and tube heat exchanger is the most common of various types of unfired heat transfer equipment used in industry. Although it is not especially compact, it is robust and its shape makes it well suited to pressure operation. It is also versatile and it can be designed to suit almost any application. Except for the special purpose air cooled heat exchanger , it is usually the only type which can be considered for large surface areas having pressures greater than 30 bar and temperature greater than 260 oC. This type of heat exchanger are widely used in Power Section HP, MP fed water heater, Paper Industry, Petrochemical, Refineries etc.,
Fin & Tube Construction
FIN TYPES : (1) PLATE TYPE (2) “G” TYPE SPIRAL WOUNDED (3) “L” TYPE SPIRAL WOUNDED
Our extended surface heat exchangers are made with exclusive fin construction combined with “staggered tube design”. Fin & tube module, made from MS material, are hot dip galvanized while the other modules ( SS copper, cupro nickel, ad-brass tubes etc. ) are expanded mechanically in case of platefin which assures metal contact between the tubes and fin collar . Fins are continuous across the entire height and depth and hence cleaning is simplified and air flow resistance is held to a minimum . The headers are of the “distributing type” wherein fluid is distributed through properly orificed inner tubes which effects uniform flow distribution and temperature across entire heater area. The frame will be channel shape fabricated from MS sheets “G” type and “L” type fins are manufactured on special machine.
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