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The Research and Application of Structural Health Monitoring Technology on the Coke Tower

DING KEQIN, TANG FANGXIONG, ZHAO NA, ZHANG LIJING

Abstract


The coke tower, work under high temperature, coke in and out with hot and cold distress through the cycle of 495℃ to 50℃, is the core reactor of the delayed coking device. Typical failure modes of bulge deformation of tower, low cycle fatigue crack of weld, material aging, the tower body tilting is easy to be caused under the comprehensive impact of complex load condition, temperature stress and mechanical stress of coke tower, which is a serious threat to safety production. For the sake of carrying out structure health monitoring technology and application research of the coke tower in a coking plant, acoustic emission, high temperature stress, temperature and tilt sensor technology was being used in this paper. And the system of the coke tower health monitoring and forecast management was also designed and developed. Based on the role of the system, real-time online monitoring data and off-line data can be acquired. The real-time on-line monitoring data can be used to diagnose the operating state of the structure. It is also possible to predict damage trends in critical areas through historical accumulation of off-line data. A new technical means based on structural health monitoring to guarantee the safe, healthy operation and guide the maintenance work of coke tower was put forward in the present paper.


DOI
10.12783/shm2017/14237

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