Luton-based Hayward Tyler Group has been awarded a contract to supply a further nine boiler circulation pumps (BCPs) to the Shoaiba power plant in Saudi Arabia.
The pumps will be fitted to three sub-critical drum-type boilers, manufactured by Alstom Power Systems USA, totalling 500MW output each.
Based on two BCPs operating in parallel; pump delivery is 3054.8m3/hr at 355.3°C, against a differential pressure of 1.93 bar. Specific gravity is 0.5739 and pump suction pressure is 196.6 bar g. The motor is a wet wound stator type operating at 6.6kV.
Vic Erdilek, power market development manager at Hayward Tyler, said: ‘BCPs are traditionally required for installation on either sub- or super-critical boilers, using coal as the fuelling method.
’On a sub-critical boiler, where traditional drum technology is used, there is a requirement for three BCPs, where two will be in continuous operation and the third on standby duty.’
He added: ’A super-critical boiler incorporates a more modern type of design concept, is more efficient and environmentally friendly and operates without the traditional drum section of a sub-critical boiler. A single BCP is required for this type of boiler and is used only for start-up purposes, closing down when 35-50 per cent of full load is achieved.’
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