Analysis Of Chimney Cracks In A Power Plant

The chimney is one of the oldest and most important pollution prevention facility. With the development of industrial economy, safety performance of structures is increasingly high demand in our country. Once the concrete chimney cracks, with the time going, the durability will be seriously affected, so that the service life of the chimney can be directly threatened.Therefore, it is necessary to research more about the cause of the cause of the reinforcement of the chimney and the cause of cracks.There is a reinforced concrete chimney of a power plant in Dalian, in the process of the transformation of the desulfurization process, we found that there are many vertical cracks in the wall, its current situation, safety and durability may already don't meet the standards. Therefore, in order to guarantee the safety of chimney in use, first of all, we need to test the chimney of this power plant, know the existing damage condition and the actual bearing capacity of this chimney, comprehensively evaluate the corrosion condition of the inner wall of chimney and the safety and durability of the cylinder. Secondly, the analysis and calculation of the reasons such as wind load, earthquake action and temperature effect are carried out respectively. Under the effect of temperature, the influence of temperature load on the wall is analyzed in three cases of the lining and the insulation layers are in good condition, the lining is falling off and the insulation layer is in good condition, both the lining and the insulation layers are falling off. Finally, according to the test results and the finite elements analysis, the reinforcement advice of the chimney is given, in order to provide a theoretical basis and reference for the similar projects.