HTS completes overhaul of boiler circulation pumps in record

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Hayward Tyler Group, a leading manufacturer of pumps and motors for the power generation and oil & gas industries, has just completed the onsite overhaul of four Hayward Tyler Boiler Circulation Pumps (BCPs) at a coal-fired power station in the Philippine

Hayward Tyler Group, a leading manufacturer of pumps and motors for the power generation and oil & gas industries, has just completed the onsite overhaul of four Hayward Tyler Boiler Circulation Pumps (BCPs) at a coal-fired power station in the Philippines – in record time, minimising plant downtime for the customer.

In March 2008, Hayward Tyler Service Division (HTS) completed the onsite mechanical and electrical overhaul (including stator rewind) of two BCPs in just 35 days. The prompt and professional approach shown by HTS sales and service engineers on these first two BCPs resulted in the customer requesting a further two BCPs to be overhauled later in 2008. The overhaul of these two additional BCPs was completed very recently in a 40-day period. This is some achievement when you consider that a typical mechanical overhaul of one BCP, including electrical rewinding, normally takes 30 days to complete.

This type of onsite overhaul work depends heavily on the availability of spares at the site. The procurement of spares alone can take 10 to 14 weeks. Through excellent teamwork, spares were procured by HTS in just eight weeks, enabling onsite work to progress as planned.

The Masinloc Coal-fired Power plant (Masinloc CPP) is a 600MW power plant located in Masinloc, province of Zambales (Island of Luzon). Masinloc CPP installed BCPs from Hayward Tyler back in 1996. The power station, which is now owned by Masinloc Power Partners Co. Ltd (MPPC), a subsidiary of The AES Corporation of the US, was originally a government-run facility. A lack of expenditure on planned maintenance prior to the takeover by AES meant that the BCPs had been poorly maintained.

On site, there are two boilers and seven Hayward Tyler BCPs, each boiler nominally requiring three BCPs, with an additional BCP as standby. Before HTS conducted the first overhaul and rewind work in March 2008, the remaining BCPs had been running continuously for a number of years. With a lack of any planned maintenance, the number of pumps in service was, in some cases, reduced to just two pumps per boiler, rather than the nominal three pumps. The overall condition of the units had therefore deteriorated and had run into a state of disrepair.

According to Anil Patel, Export Sales Engineer at HTS: “This, in effect, had reduced the output of the Masinloc power plant significantly, which in turn equated to lost revenue. Therefore, any attempt at scheduling in planned maintenance was given low priority and outages were deferred.”

“The AES takeover period was controlled but added a further period of time during the condition of suspension, which allowed a further degradation in the condition of the plant. However, provision and coordination with AES, the new owners, enabled the rapid release of orders and financing to initiate the supply of goods and services from HTS to support the extensive maintenance programme that followed the handover,” added Patel.

Paul Green, Maintenance Manager at AES commented: “AES was delighted by the prompt and professional approach demonstrated by HTS Sales and Service teams on the first overhaul, resulting in the overhaul of two further units more recently. We would like to thank HTS for the excellent job they have done in supporting our power station, which is now operating at increased output levels since the overhauls.”

Hayward Tyler rotating equipment service centres are capable of providing outage, repair, overhaul and test services for boiler circulating pumps, subsea motors, submersible pumps, canned pumps and steam turbines, from a wide variety of manufacturers and industries.

HTS offers high quality workmanship and rapid response times for the service and repair of almost all types and makes of rotating equipment, 24 hours a day, seven days a week. Services provided include: canned and wet motor overhaul and rewinds; pump, submersible pump and general purpose steam turbine overhauls; large in-house resource centres; welding; balancing; machining; comprehensive engineering review; and material, performance and reliability upgrades.

For more information on Hayward Tyler Group, please visit the website at www.haywardtyler.com or telephone the marketing department on 01582 731144 or email marketing@haywardtyler.com

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