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1. (WO2018088017) STEEL TANK INNER SURFACE FRP DOUBLE-SHELL STRUCTURE

Pub. No.:    WO/2018/088017    International Application No.:    PCT/JP2017/032567
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Sat Sep 09 01:59:59 CEST 2017
IPC: B65D 90/00
B65D 90/22
Applicants: SANFREUND CORPORATION
株式会社サンフロイント
Inventors: UENO Hideo
上野秀雄
Title: STEEL TANK INNER SURFACE FRP DOUBLE-SHELL STRUCTURE
Abstract:
Provided is a steel tank inner surface FRP double-shell structure that prevents soil contamination and the like, by forming a tank to be buried underground into a double-shell structure and detecting pitting and corrosion in the steel tank at an early stage. This steel tank inner surface FRP double-shell structure is characterized by being provided with: the steel tank; a fiber reinforced composite material that is provided so as to cover the inner periphery of the steel tank so as to prevent leakage from the steel tank; a gap forming member that is arranged between the steel tank and the fiber reinforced composite material; a detector that is arranged between the steel tank and the fiber reinforced composite material so as to detect leakage from the steel tank; and a notification means for notifying of a failure of the steel tank when the detector detects leakage from the steel tank.