Ceiling-Only Fire Protection With Targeted Discharge Arrays
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Solution Overview
Problem
Existing fire protection systems for storage structures often fail to effectively detect and respond to fires in densely packed environments, leading to inadequate fire suppression and potential damage to stored commodities.
Innovation Solution
A ceiling-only fire protection system comprising a grid-patterned arrangement of fluid distribution devices and detectors, controlled by a centralized controller, which detects fire growth thresholds and activates a targeted discharge of firefighting fluid to extinguish fires efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fire protection systems are used in densely packed storage structures, then the system can provide basic fire suppression, but the system fails to effectively detect and respond to fires, leading to inadequate fire suppression
Solution Approach 1:
The system divides the storage structure into multiple zones with detectors and fluid distribution devices arranged in specific patterns (e.g., 2:1 ratio of detectors to devices). Each zone operates semi-independently, allowing targeted response to fires in specific areas while maintaining overall system reliability without requiring complete system overhaul
Solution Approach 2:
The system pre-positions detectors and fluid distribution devices in optimized configurations before fires occur. Detectors are placed to maximize early detection capability, and fluid distribution devices are pre-charged and positioned to deliver immediate suppression response when fires are detected, eliminating the need for complex real-time system reconfiguration
2Measurement precision
If a ceiling-only fire protection system is implemented, then the system provides precise and timely fire suppression, but the system requires sophisticated detection and control mechanisms
Solution Approach 1:
The controller continuously receives signals from multiple detectors, processes the data to determine fire presence and location, and adjusts fluid distribution device operation accordingly. This closed-loop feedback system enables precise fire detection and targeted suppression response through automated control logic rather than complex mechanical systems
Solution Approach 2:
The controller acts as an intermediary between detectors and fluid distribution devices, translating detector signals into appropriate suppression responses. This intermediary layer simplifies the overall system architecture by centralizing intelligence in a single control unit rather than requiring complex direct coupling between all components
3Object-affected harmful factors
If a controlled fluid discharge system is used, then the system minimizes damage to stored commodities, but the system requires coordinated operation of multiple fluid distribution devices
Solution Approach 1:
The system activates only the fluid distribution devices located in the immediate vicinity of the detected fire, rather than flooding the entire storage structure. This localized response minimizes water damage to stored commodities while maintaining effective fire suppression at the fire source through targeted device operation
Solution Approach 2:
The system activates a specific number and pattern of fluid distribution devices (e.g., 3-5 devices in a 2:1 detector-to-device ratio) rather than all available devices. This partial action provides sufficient suppression capability for most storage structure fires while reducing overall water discharge and potential damage to stored commodities
Data Source
AI summary
Systems and methods of ceiling-only fire protection of a storage structure are disclosed herein. The system comprising a plurality of fluid distribution devices disposed in a grid pattern beneath a ceiling and above the storage structure. The plurality of fluid distribution devices comprising a frame body, seal assembly and actuator. The system further comprising a fluid distribution system including a network of pipes interconnecting the plurality of fluid distribution devices with a water supply. The system further comprising a plurality of detectors to monitor the storage structure for a fire. The system further comprising a controller coupled with the plurality of detectors to detect and locate the fire, and coupled with the plurality of fluid distribution devices to identify and control operation of a select number of the plurality of fluid distribution devices that define a discharge array above and about the fire.