This technology detects the amount of hazardous liquid chemicals leaked within the containment dike of a storage facility. If levels exceed a set threshold, it automatically injects cryogenic gas from a storage tank into the dike to freeze the liquid surface, thereby preventing atmospheric vapor diffusion.
Existing standards for chemical handling facilities were merely declarative, requiring the installation of containment dikes without specific criteria for different facility types, leading to significant variations in safety management based on a site's technical capabilities. Furthermore, while dikes can contain liquid flow, they are ineffective at preventing the spread of hazardous gases evaporating from the pooled liquid.
This technology uses a laser level sensor to measure the leak level, triggering visual and audible alarms if a primary threshold is exceeded. If a gas sensor confirms that concentrations exceed a secondary threshold, a control unit opens valves to inject cryogenic gas, providing a phased response. By automatically freezing the surface before human intervention is possible, it suppresses evaporation. Applicable to petrochemical tank terminals, semiconductor and fine chemical plant storage areas, and chemical logistics warehouses, it minimizes secondary damage to surrounding areas during the initial stages of a leak.
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