Comprehensive static and seismic response analyses of the dry desulfurization tower in a certain project were carried out by using finite element method.Established a finite element model of the desulfurization tower,and calculated the wind load at different heights based on standard regulation and structural characteristic of the desulfurization tower.Under the comprehensive static effect of wind load,working pressure,self gravity,snow load,etc.,the stress and displacement cloud maps of the desulfurization tower were obtained.By using the time history analysis method,the seismic response and inter story displacement time history curves of the desulfurization tower were obtained.The analysis result shows that the maximum stress value of the desulfurization tower under comprehensive static force of wind load and other is 201.84 MPa,located at the support pipeline of the tower,which does not exceed the yield strength of Q235B steel used in the pipeline,and meets the requirement.The horizontal displacement angle of the absorption tower is 0.000 55,and the horizontal displacement angle of the tower is 0.000 4,both of which are less than 1/75,and meet the standard requirement.Under the action of seismic wave,the maximum inter story displacement angle of the desulfurization tower is 0.003 1,located between the smoke exhaust outlet at the top of the absorption tower and the top surface of the pipeline.The maximum inter story displacement angle of the tower is 0.001,located on the sixth floor of the tower,and the inter story displacement angles are all less than 1/250,and meet the standard requirement.The analysis result provides a basis for the structural design of the desulfurization tower from two aspects of structural strength and seismic performance.
万方数据
维普
