Applications and Characteristics
Coil-wound heat exchangers (CWHE) are advantageous for clean media, with a broad temperature and pressure range and suitable for single phase as well as two phase streams. Several streams can be accommodated in one exchanger. The spiral-wound heat exchanger is known for its robustness in particular, during start-up und shut-down or plant trip conditions.
Applications
Coil-wound heat exchangers are used for a wide range of applications for treatment of clean fluids in hot and cold applications.
The main applications are: Cooler Heater Liquefier Vaporizer Isothermal Rector |
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Characteristics
Each exchanger is designed based on customer requirements
considering thermal and hydraulic performance, and adequate
material selection to suite temperature range and corrosion
resistance. Pressures of up to 100 bar and more are not
uncommon.
The special features of the geometry and the possibilities to use
a practically unrestricted range of materials ensure a wide field of
applications. Spiral-wound heat exchangers are manufactured in
austenitic steels, aluminium alloys, carbon steel, nickel and
chrome/moly alloys.
The heating surface of one unit can exeed 20,000 square meters. At the moment the maximum diameter is limited to 7,500 mm, with a weight of approximately 260 tonnes per unit. Larger diameters or higher unit weights are feasible and will be checked on customers request. In these cases the final assembly will take place in workshops which are close to water ways.
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