| 摘要 |
<p>A storage tank for a low-temperature liquid comprising a tank shell, a heat insulation layer with which the tank shell is lined, a liquid-impervious layer sandwiching the heat insulation layer between itself and the tank shell and serving as a first barrier, a second barrier provided inside the heat insulation layer, and a lamination extended along the inner side of the second barrier and including a capacitor layer which in turn consists of at least two electrically conductive layers and an electrical insulation layer interposed therebetween, said electrically conductive layer provided inwardly of the electrical insulation layer being formed with a multiplicity of fluid passages, so that any leakage of the low-temperature liquid through the lining is detected from a change in the capacity meter reading of the capacitor layer with the penetration of the leaking liquid into the electrical insulation layer by way of the fluid passages.</p> |
