Performance analysis method for coating protection system of LPG (liquefied petroleum gas) storage tank in fire disaster environment

Abstract

The invention discloses a performance analysis method for a coating protection system of an LPG (liquefied petroleum gas) storage tank in a fire disaster environment. The method comprises steps as follows: 1, a wavelet finite element model for performance analysis of a passive coating protection system of the LPG storage tank in the fire disaster environment is established; 2, wavelet finite elements of the passive coating protection system of the LPG storage tank in the fire disaster environment are established; 3, an integral wavelet finite element formula of the passive coating protection system of the LPG storage tank in the fire disaster environment is established; 4, numerical calculation is performed; 5, the experimental test of the coating protection system of the LPG storage tank in the fire disaster environment is performed; 6, the optimal wavelet finite element is selected according to the selection result; 7, fire disaster types, coating materials and structures and flame types are changed, and numerical analysis is performed, so that a coating protection mechanism of the LPG storage tank in the fire disaster environment can be found; and 8, a known LPG storage tank coating protection system is designed and optimized, so that the explosive dangerousness of the LPG storage tank in the fire disaster environment can be decreased.

Description

Technical field: [0001] The present invention relates to the coating passive protection system of LPG storage tank under the fire environment, specifically, relates to the method for analyzing the performance of the coating protection system of the LPG storage tank under the fire environment used for analyzing the performance of the passive protection system of the coating, using gas-solid-liquid coupling wavelet Finite element analysis method. Background technique: [0002] In a fire environment, the LPG storage tank is exposed to flames, the pressure inside the tank increases, the temperature of the tank wall increases, and the strength decreases at the same time. After the fire lasts for a certain period of time, the tank wall will crack, and the flammable and explosive LPG will leak. It will lead to the explosion of the LPG storage tank. Once the fire and explosion accident of the LPG storage tank occurs, the equipment and buildings of the oil company will be destroyed, ...

AI Technical Summary

Problems solved by technology

[0005] In recent years, relevant scientists at home and abroad have studied the thermodynamic response of storage tanks under fire conditions from different angles, and discussed the explosion-proof early warning mechanism of storage tanks. However, there are few studies on the protection mechanism of passive protection systems for storage tank coatings. Therefore, in-depth analysis of the passive fire protection mechanism of LPG storage tank coatings in fire environments has very important theoretical significance for improving the safety of storage tanks.

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