Laminated Fire-Extinguishing Sheet for Deliquescence Control
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Solution Overview
Problem
Conventional fire-extinguishing products using deliquescent potassium salts suffer from deteriorating fire-extinguishing performance over time due to deliquescence, which is influenced by storage environment.
Innovation Solution
A laminate structure with two fire-extinguishing agent layers, one containing an anti-deliquescence component, is employed to suppress deliquescence and maintain fire-extinguishing performance, where the second layer with the anti-deliquescence component covers the first layer, reducing contact with air and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a deliquescent fire-extinguishing agent (potassium salt) is used to achieve fast fire-extinguishing response, then the fire-extinguishing effectiveness is improved, but the fire-extinguishing performance deteriorates over time due to deliquescence
Solution Approach 1:
The fire-extinguishing sheet is divided into multiple layers: a first layer containing deliquescent fire-extinguishing agent for fast response, and a second layer containing anti-deliquescence component for stability. This segmentation allows each layer to perform its specific function independently, resolving the contradiction between fast response and long-term stability.
Solution Approach 2:
The second layer acting as an intermediary protective barrier between the deliquescent fire-extinguishing agent in the first layer and the external environment. This intermediary layer prevents direct contact between moisture and the deliquescent agent, thereby maintaining stability while preserving the fire-extinguishing capability.
2Ease of operation
If the fire-extinguishing agent layer is exposed to air for easy access, then the ease of operation is improved, but the deliquescence increases reducing reliability
Solution Approach 1:
Different regions of the fire-extinguishing sheet have different properties: the first layer provides fire-extinguishing functionality while the second layer provides protective stability. This local differentiation allows the sheet to be accessible yet protected from deliquescence where needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The laminate structure maintains improved fire-extinguishing performance over a long period and allows for directional ejection of the fire-extinguishing agent, effectively suppressing fires at an earlier stage.
Implementation Method 1
the potassium salt contained as the fire-extinguishing agent is deliquescent, and depending on the storage environment, the fire-extinguishing performance may deteriorate with time
Implementation Method 2
mix a fire-extinguishing agent that produces an aerosol when burned with a binder
Implementation Method 3
the fire-extinguishing agent contains at least one of a salt which is a deliquescent organic salt and a salt which is a deliquescent inorganic salt
Data Source
AI summary
A fire-extinguishing sheet according to the present disclosure has a laminate structure comprising a first fire-extinguishing agent layer and a second fire-extinguishing agent layer, wherein each of the first and second fire-extinguishing agent layers contains a fire-extinguishing agent, the fire-extinguishing agent contains at least one of a salt which is a deliquescent organic salt and a salt which is a deliquescent inorganic salt, and the second fire-extinguishing agent layer further contains an anti-deliquescence component. A device according to the present disclosure having an automatic fire-extinguishing function includes a fire-extinguishing object having a possibility of ignition, and a fire-extinguishing sheet disposed facing the fire-extinguishing object.