Influence of accumulated damage on the experimental resource of the boiler unit drum of the thermal power plant

Goal of the work is to develop a methodology for researching possibility further exploitation drums boiler units thermal power plants after exhausting their park resource. Significance. During long-term operation TPP units, which under action high pressure, elevated temperature, repeatedly changing cyclic loads, influence corrosive-active working environment, water-steam mixture, stressed metal degrades, various kinds defects are formed in vicinity stress concentrators and damage that can lead failure even large-scale catastrophic destruction. The proposed method makes it possible establish residual operational resource outline ways more economical operation. Method. computer modeling processes deformation drum high-pressure different modes its built on basis spatial-three-dimensional thermoelasticity ratios using finite element method. Results. developed technique total value parameter accumulated Scientific novelty. A condition according level has been developed, taking into account determined maximum stresses industrial Practical significance. will make remaining