Battery Rack Fire Suppression With Pressure-Reduced Agent Injection
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Solution Overview
Problem
Existing fire-extinguishing systems for energy storage devices struggle to effectively suppress high-pressure fires in energy storage systems due to increasing energy density and ejection pressure of battery cells, necessitating a more efficient method for early fire suppression.
Innovation Solution
A fire-extinguishing system with a sensing part to detect temperature, voltage, or smoke, and a fire-extinguishing part that injects a chemical extinguisher through a pipe fitting member with a reduced inner diameter orifice configuration, lowering injection pressure and increasing injection time to effectively suppress fires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the fire-extinguishing system is designed to handle all battery types, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent segments the fire-extinguishing system into distinct modules: a water extinguishing subsystem and a water-free extinguishing subsystem, each optimized for specific battery types. The system divides the extinguishing agents and delivery mechanisms by battery category, allowing simplified subsystem designs rather than one complex universal system. This segmentation achieves adaptability while controlling complexity through modular architecture.
Solution Approach 2:
The control system acts as an intermediary that receives battery type information, identifies the appropriate extinguishing medium, and directs the corresponding extinguishing subsystem. This intermediary control logic simplifies the overall system architecture by centralizing the decision-making process, allowing the physical extinguishing subsystems to remain relatively simple while achieving versatility through intelligent mediation.
Data Source
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AI summary
An embodiment of the present invention relates to a fire-extinguishing system of an energy storage device including a plurality of battery racks for receiving a plurality of battery modules, the fire-extinguishing system comprising: a sensing part for detecting at least one of a temperature, a voltage, and smoke of a battery module; and a fire-extinguishing part for injecting a fire-extinguishing chemical to the battery module when at least one of values detected by the sensing part exceeds a predetermined threshold value, wherein the fire-extinguishing part further comprises a pipe fitting member provided on a path through which the fire-extinguishing chemical is supplied with respect to the battery rack to change a supply pressure of the fire-extinguishing chemical.