This standard specifies the basic principles of life assessment for main pressure-bearing components of power plant boilers, proposes the basic steps of life assessment, and recommends commonly used life assessment methods under different damage modes. The main pressure-bearing parts of power plant boilers in this standard include: a) pressure-bearing parts in the furnace: water wall, economizer, superheater, reheater; b) pressure-bearing parts outside the furnace: drum, steam-water separator, header ; c) Steam and water pipes: main steam pipes, reheat steam pipes, water supply pipes, and steam guide pipes. The life assessment methods of power plant boiler pressure parts listed in this standard are only for damages such as creep, fatigue, fatigue-creep interaction, wear, flue gas side corrosion and creep, flue gas side corrosion and wear. model. This standard does not apply to the life assessment of pressure-bearing parts of power plant boilers with exceeding standards defects.
GB/T 30580-2014 Referenced Document
GB/T 15248 The test method for axial loading constant-amplitude low-cycle fatigue of metallic materials
GB/T 2039 Metallic materials.Uniaxial creep testing method in tension
GB/T 9222 Strength calculation of pressure parts for watertube boilers
GB/T 30580-2014 history
2022GB/T 30580-2022 The technical guide for the life assessment of main pressure parts of power plant boiler
2014GB/T 30580-2014 The technical guide for the life assessment of main pressure parts of power plant boiler