Special Focus: Wear Protection
New wear and corrosion preventative solutions increase power plant life
Many new innovative products have been developed that help maintenance departments extend the life of critical power plant components. Dr Gary R Heath reports.
Se han desarrollado numerosos productos muy novedosos que ayudan a los departamentos de mantenimiento a prolongar la vida útil de los componentes críticos de las centrales. eléctricas. Informa Dr Gary R Heath.
Es wurden viele neue innovative Produkte entwickelt, um Wartungsabteilungen bei der Erhöhung der Lebensdauer kritischer Anlagenbauteile zu unterstützen. Dr. Gary R. Heath hat dazu einen Bericht.
F
or many years energy demand has been strongly growing and will continue. Te installation of new plant capacity can take years so there is an enormous pressure on power
plants to improve operational output, efficiency and availability. Further, there is the constant requirement to reduce operating costs and the environmental impact of achieving these targets. Te maintenance department can play a critical role by selecting longer-lasting key components to extend outage intervals and also reduce unplanned down-time and inventory. Component repair rather than replacement
produces immediate costs savings and also reduces the use of materials, energy and transport in producing these new components. If the lifetime of the repaired part can
be increased over that of a new part, plant performance and availability can also be improved, leading to significant energy savings and carbon generation. After years of research, field tests and
involvement of power plant engineers, many innovative products have been developed to support the maintenance departments extend
the life of critical power plant components (by as much as five times).
Wear resistant plate solutions For the wear protection of large surface areas such as chutes, coal mill cones, separator discs, blades or slag protections the ideal solution is the weld overlay wearplate. Castolin Eutectic have the widest global wearplate range sold under the name CastoDur Diamond Plates (CDP). CDP plates consist of an easy-to-weld steel plate over-laid with abrasion and erosion resistant alloys. Innovations have included the patented lightweight, smooth powder fused plate, superhard tungsten carbide plate and the first impact resistant plates. A new stainless steel base metal allows these plates to provide optimal wear resistance in aggressive corrosion environments such include fans, cyclones, chutes, liners, etc. Another recent development was to translate this technology into producing internal weld overlay of seamless tubes. Te production technology allows wear protection coating of 3m long tubes of any internal diameter down to 82mm Te major wear areas outside the boiler
Fig. 1. Transport piping made from CastoTube with internally clad wear facing.
64
www.engineerlive.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68