High pressure feedwater heaters

Through its acquisition of Hick Hargreaves, Edwards has added the capability to design and supply replacement feedwater heaters for central power generating plants to its product portfolio.

Our capabilities in regard to this equipment are principally focussed on the supply of replacement vertical heaters, with full radiographic testing of the back face welded tube to tubesheet joints being undertaken to ensure maximum integrity of these critical joints.

Hick Hargreaves began to suppy feed heaters in the 1930’s and the reference list now extends to several hundred units. Many of our heaters have been in service for well in excess of twenty five years.

The designs developed by Hick Hargreaves cater for modern power station operating practices with repeated cold and warm starts and the stresses imposed on the heaters as a result of this type of operating regime. Well proven baffling and shrouding arrangements maximise the efficiency of the desuperheating and condensing sections and enable effective control of liquid levels within the heater to ensure effective condensate drains cooling.

Access to the waterbox for inspection is provided via an arrangement designed to allow easy removal and replacement of the cover and to provide adequate access to permit inspection to be undertaken efficiently.