Ship Battery Cabin Fire Control with Redundant Detection Paths
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Solution Overview
Problem
The challenge is to develop a reliable fire prevention and control system for the rechargeable battery cabin of a ship, which is prone to sudden and rapid fires due to thermal runaway in lithium-ion batteries, especially considering the unique navigational environment and increased complexity of battery management systems on ships.
Innovation Solution
A dual-path monitoring-control process is implemented using redundantly disposed detection and control apparatuses, which are connected to a fire suppression system. This system includes cluster-level and cabin-level suppression apparatuses, with independent control boards and detection devices to ensure rapid and localized fire extinguishing, even in the event of partial battery management system failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a battery management system is used to manage multiple battery packs in the rechargeable battery cabin, then the battery system can operate efficiently, but the system becomes vulnerable to failures that compromise fire safety
Solution Approach 1:
The fire prevention and control system is segmented into multiple independent detection apparatuses and control apparatuses that operate separately from the battery management system. Each detection apparatus monitors specific battery packs independently, and control apparatuses can independently activate fire suppression without relying on the battery management system's integrity.
Solution Approach 2:
A dedicated fire detection and control system acts as an intermediary layer between the battery packs and fire suppression apparatus. This intermediary system includes detection apparatuses that monitor temperature, voltage, and other parameters, and control apparatuses that trigger suppression, creating an independent safety pathway that does not depend on the battery management system.
2Reliability
If detection apparatuses and control apparatuses are disposed redundantly with dual-path monitoring-control process, then the reliability of fire prevention and control is greatly improved, but the device complexity increases
Solution Approach 1:
The system is divided into multiple independent detection apparatuses and control apparatuses that operate in parallel. Each detection apparatus is assigned to monitor specific battery packs, and control apparatuses are distributed throughout the cabin. This segmentation allows redundancy without requiring a completely centralized complex system.
Solution Approach 2:
Each detection apparatus and control apparatus is designed to perform its function locally with specific responsibilities. Detection apparatuses monitor local temperature, voltage, and gas conditions in their assigned zones, while control apparatuses locally activate suppression mechanisms. This local specialization reduces overall system complexity compared to a centralized approach.
Data Source
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AI summary
The present invention discloses a fire prevention and control system for a rechargeable battery cabin of a ship, including a detection apparatus, a fire suppression apparatus, and a control apparatus. The detection apparatus includes a first detection apparatus and a second detection apparatus, the control apparatus includes a first control apparatus and a second control apparatus, the first control apparatus is connected to the first detection apparatus, the second control apparatus is connected to the second detection apparatus, and the first control apparatus and/or the second control apparatus is configured to control whether the fire suppression apparatus releases a fire extinguishing agent. Beneficial effects: This application provides a fire prevention and control system for a rechargeable battery cabin of a ship. Detection apparatuses and control apparatuses are redundantly disposed, to provide high reliability of detection and high reliability of control, and implement a dual-path monitoring-control process of detection apparatus-control apparatus-fire suppression apparatus, thereby greatly improving the reliability of the fire prevention and control system.