Ceiling Fire Protection Grid for Targeted Storage Suppression
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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, detectors, and a controller that uses electronic actuation to control the discharge of firefighting fluid based on input signals from detectors, determining threshold moments in fire growth and adjacency to target fluid distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional fire protection systems are used in densely packed storage structures, then coverage area is sufficient, but detection precision and response timing are inadequate
Solution Approach 1:
The system divides the storage structure into multiple zones with detectors and fluid distribution devices arranged in specific patterns. Detectors are segmented into different types (heat, smoke, flame) positioned at various heights, and fluid distribution is segmented into targeted zones rather than uniform coverage, enabling precise localization and faster response to fire incidents.
Solution Approach 2:
The system dynamically adjusts detection sensitivity and fluid distribution based on real-time conditions. The controller modifies detection thresholds and activates specific fluid distribution devices based on fire location, intensity, and growth rate, allowing the system to adapt its response timing and precision to the developing fire situation.
2Device complexity
If ceiling-only fire protection is implemented, then device complexity is reduced, but fire suppression effectiveness may be compromised
Solution Approach 1:
The ceiling-only system employs local quality by positioning detectors and fluid distribution devices at ceiling level with specific orientation and spacing. Detectors are mounted to face downward or omnidirectionally, and fluid distribution devices are oriented to discharge downward onto storage commodities, ensuring effective fire suppression from the ceiling plane without requiring wall or floor-mounted components.
Solution Approach 2:
The system transitions from traditional multi-dimensional fire protection (wall, floor, and ceiling systems) to a ceiling-only approach by utilizing vertical dimension optimization. Detectors and fluid distribution devices are strategically positioned at ceiling height with specific spatial arrangements that leverage the vertical space above storage commodities to achieve comprehensive fire coverage through ceiling-based discharge patterns.
3Measurement precision
If controlled fluid distribution is used, then water discharge precision is improved, but device complexity increases
Solution Approach 1:
The system implements preliminary action by pre-positioning fluid distribution devices in strategic locations throughout the storage structure. Detectors and fluid distribution devices are pre-configured in specific patterns and orientations, with control logic pre-programmed to identify fire locations and activate appropriate devices, enabling rapid controlled discharge without complex real-time calculations.
Solution Approach 2:
The controller receives continuous feedback from detectors regarding fire location, temperature, and growth rate. Based on this feedback, the controller selectively activates specific fluid distribution devices to discharge water precisely onto the fire zone, adjusting the spatial distribution of fluid discharge to match the fire's position and intensity while maintaining manageable system complexity through rule-based control logic.
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.