Double shell structure of buried tank with leakage detection device

摘要

Problem to be solved: to provide a double shell structure of a buried tank equipped with a pressure sensor for detecting oil leakage such as gasoline and solvent leakage of an organic solvent beforehand.Solution: a double shell structure buried tank 1 having an inner shell, an outer shell, and a pressure sensor provided in a small space between the inner shell and the outer shell, has corrosion and pore corrosion in the inner shell and the outer shell, and further, the pressure in the small space is preliminarily formed by the corrosion hole and the hole in the hole. If it is out of the predetermined value, the pressure sensor detects this.The pressure sensor is a pressure fluctuation detecting device 16, and notifies the manager of the failure of the buried tank 1 when the measured value deviates from a predetermined predetermined value.Diagram