Ship Battery Cabin Fire Suppression with Redundant Dual-Path Control
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Solution Overview
Problem
The challenge of effectively preventing and controlling fires in rechargeable battery cabins of ships, particularly due to the complexity and susceptibility of battery management systems to environmental factors and the potential for rapid fire spread, is not adequately addressed by existing technologies, necessitating a system with high reliability and redundancy.
Innovation Solution
A dual-path monitoring-control process is implemented using redundant detection and control apparatuses, coupled with a fire suppression system that includes cluster and cabin level suppression apparatuses, and redundant control boards, ensuring timely and reliable fire extinguishing even in the presence of system faults or failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a battery management system is used to manage multiple battery packs in the rechargeable battery cabin, then the battery system can operate and be monitored, but the system becomes susceptible to environmental factors and may fail, leading to fire hazards
Solution Approach 1:
The battery cabin is divided into multiple battery clusters, with each cluster independently monitored and protected by its own detection apparatus and fire suppression apparatus. This segmentation ensures that a failure in one cluster does not compromise the entire system, thereby improving reliability while maintaining management capability across all clusters.
Solution Approach 2:
Detection apparatuses are installed in each battery cluster to detect fire information before thermal runaway occurs. This early detection capability allows the system to take preventive actions, cushioning against potential failures and improving overall system reliability by addressing issues before they lead to fire hazards.
2Reliability
If detection apparatuses and control apparatuses are redundantly disposed, then the reliability of fire detection and control is improved, but the device complexity increases
Solution Approach 1:
The redundant detection and control apparatuses are segmented and distributed across different battery clusters rather than centralized. Each cluster has its own detection apparatus connected to control apparatuses, which in turn control fire suppression apparatuses. This distributed segmentation reduces the complexity of managing redundant systems while maintaining high detection reliability across the entire battery cabin.
3Reliability
If a dual-path monitoring-control process is implemented, then the reliability of fire prevention and control is greatly improved, but the device complexity increases
Solution Approach 1:
The dual-path monitoring-control process is implemented through segmented detection and control apparatuses distributed across battery clusters. Each path independently monitors and controls its designated cluster, with apparatuses connected through a structured network. This segmentation allows the complex dual-path system to be managed in modular units, reducing overall system complexity while maintaining high fire prevention reliability.
Solution Approach 2:
The detection apparatuses continuously monitor battery clusters for fire information before thermal runaway occurs, and the control apparatuses are pre-configured to activate fire suppression apparatuses when needed. This preliminary monitoring and pre-configured control reduce the complexity of real-time decision-making while ensuring high reliability in fire prevention and response.
4Power
If multiple battery clusters with large total storage energy are disposed in the rechargeable battery cabin, then the power and endurance of the electric ship are improved, but the fire hazard and potential for rapid fire spread increase
Solution Approach 1:
The battery cabin is divided into multiple battery clusters, each independently monitored and protected by detection apparatuses and fire suppression apparatuses. This segmentation isolates fire hazards to specific clusters, preventing rapid fire spread across the entire battery system while maintaining the large total storage energy needed for ship power and endurance.
Solution Approach 2:
Detection apparatuses are installed in each battery cluster to detect fire information and potential thermal runaway conditions before they develop into full fires. This preliminary detection enables early intervention through the control apparatuses and fire suppression systems, countering fire hazards before they can spread, thereby allowing safe operation of multiple high-energy battery clusters.
Data Source
AI summary
Disclosed is 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.