Freshwater Generator / Watermaker · Freshwater Generators
The Wärtsilä Water Cooled Steam Condensers entry refers to water-cooled steam condensers. A steam condenser removes latent heat from exhaust or process steam and condenses it back to liquid by transferring heat to a cooling-water circuit. In marine service such condensers may be associated with steam systems, freshwater-generation packages or other heat-recovery arrangements depending on the vessel design. The unit normally contains separate steam and cooling-water sides, with performance depending on clean heat-transfer surfaces, adequate cooling-water flow and effective removal of non-condensable gases. The library category places this item under Freshwater Generators / Watermaker, but the product name itself describes a condenser rather than a complete freshwater generator. No exact Wärtsilä model, surface area or capacity is provided in the source. The installed drawing, nameplate and manufacturer documentation must therefore be used for all exact performance and pressure data.
What our service work and the manufacturer documentation say about keeping this model running.
Inspect cooling-water passages and heat-transfer surfaces for scale, marine growth, corrosion and erosion. Trend vacuum, steam-side temperature and cooling-water temperature difference where instruments are fitted. Check air-ejector or vacuum equipment, drains, vents and condensate removal arrangements. Pressure-test or leak-test the heat-transfer boundary using the approved procedure when leakage is suspected. Use the exact Wärtsilä/Hamworthy documentation for cleaning methods, material limits and test pressures.
Carry installation-specific seals, gaskets, tube plugs or approved repair materials only where applicable to the actual condenser construction. Pump, valve and vacuum-system spares may be more operationally important than internal condenser spares. Major pressure-boundary components must match the original material and approved design.
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