VIBRATION FREQUENCY ANALYSIS AND EXPERIMENTAL STUDY OF WET DESULFURIZATION FRP FLUE IN COAL-FIRED POWER PLANT

Abstract

Abstract: The FRP flue duct is gradually applied and popularized in the coal-fired power plant wet desulfurization system. However, there is no vibration calculation specification for FRP flue duct design, and the vibration calculation specification of the steel structure is not applicable to the FRP flue duct. Therefore, it is necessary to analyze the vibration of FRP flue duct, obtain the law between FRP flue duct structure and vibration, and propose the relationship between the center distance of the flue duct reinforcement rib and vibration. In this paper, the bending of the flue duct composite panel is regarded as the large deflection of the thin plate. The vibration equation of FRP flue duct wall is obtained by Mindlin theory, and the relationship between the center distance and frequency of flue duct reinforcement rib is derived. On the other hand, the vibration mode experiment was performed on the laminate. The results show that the steel flue duct technical specifications and Mindlin theoretical calculation results are 5.51% and 2.47% compared with the experimental results. The error of Mindlin′s theoretical calculation results is smaller, which significantly improves the design accuracy of FRP flue duct.

Key words: FRP, vibration, modal analysis, flue duct

CLC Number:

TB332

SHEN Zhi-yong, MA Xiu-yuan. VIBRATION FREQUENCY ANALYSIS AND EXPERIMENTAL STUDY OF WET DESULFURIZATION FRP FLUE IN COAL-FIRED POWER PLANT[J]. Fiber Reinforced Plastics/Composites, 2019, 0(8): 82-86.

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