Suspended Coal Hopper Damping Structure for Improving the Seismic Performance of the Main Building of a Thermal Power Plant

Abstract

The invention relates to a suspension type coal bunker damping structure improving heat-engine plant main workshop antivibration performance; the suspension type coal bunker damping structure comprises suspension rods, a steel coal bunker, coal bunker beams, frame beams, frame columns, springs and dampers; the suspension rods are connected with the steel coal bunker and the coal bunker beams, and used for bearing the steel coal bunker gravity and providing swing rigidity; the springs are connected with the steel coal bunker and frame columns in the horizontal surface, and the elastic rigidity of the springs is reasonably designed, so a vibration period of the system formed by the springs, suspension rods and the steel coal bunker can be similar to that of the main workshop structure under major vibration effect, thus realizing frequency modulation function of the suspension type coal bunker; the dampers are connected with the steel coal bunker and the frame columns in the horizontal surface, and can provide large damping force when the steel coal bunker and the frame columns relatively move, thus limiting motion amplitude of the suspension type coal bunker, and improving structure additional damping. The suspension type coal bunker damping structure can be applied to a newly built heat-engine plant main workshop structure or antivibration reinforcement of a conventional heat-engine plant main workshop structure.

Description

technical field [0001] The present invention relates to the technical field of anti-seismic design, damping control and anti-seismic reinforcement of the main building of a thermal power plant, and in particular to a suspension type coal hopper shock absorber for improving the anti-seismic performance of the main building of a thermal power plant structure. Background technique [0002] In recent years, there have been many earthquakes with great destructive power in my country. Among them, the Wenchuan earthquake and Yushu earthquake caused the loss of life and property, and the whole country mourns for it. Many large thermal power plants in our country are built in areas with high seismic intensity. During an earthquake, thermal power plants should ensure sufficient safety in order to provide vital power for disaster relief after the earthquake. Therefore, it has important economic value and social significance to alleviate the destructive loss of the main building struct...

AI Technical Summary

Problems solved by technology

Due to the huge quality of coal and the high action position, the horizontal earthquake effect on the entire main plant structure will be very large, especially in high-intensity earthquake areas. This is one of the main factors affecting the seismic performance of the main plant structure, resulting in The section of the main powerhouse of the thermal power plant designed by the conventional method is too large, and the seismic performance is not ideal

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