Integrated Fire Detector Sprinkler Head Actuation

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Solution Overview

Problem

Conventional fire suppression systems face challenges with mechanical actuation of sprinklers, leading to delayed or improper activation, resulting in inefficient fire mitigation and potential damage.

Innovation Solution

Integration of a fire detector directly into the sprinkler head, allowing for more accurate and timely detection of fire conditions, which triggers the sprinkler activation through a heat-sensitive mechanism or resistive heating component.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fire detectors and sprinklers are positioned spaced apart from each other, then the system can use separate devices for detection and suppression, but the complexity of the fire suppression system increases and the trigger operation time is delayed

Engineering Contradiction:

Improvefire detection accuracyVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the fire detector and sprinkler into a single integrated device. The detector is positioned within the sprinkler head, allowing the same component to perform both detection and suppression functions. This eliminates the need for separate detectors and sprinklers, reducing system complexity while maintaining detection accuracy.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The sprinkler head is designed to serve multiple functions: it acts as both a suppression device and a detection device. The detector integrated within the sprinkler head enables the device to detect fire conditions and trigger suppression, making it a universal component that performs both roles previously handled by separate devices.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If fire detectors and sprinklers are positioned spaced apart from each other, then the system can use separate devices for detection and suppression, but the time for trigger operation of sprinklers is delayed

Engineering Contradiction:

Improvefire detection accuracyVSAvoidtrigger operation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The detector is integrated directly into the sprinkler head, eliminating the spatial separation between detection and suppression components. This ensures that when the detector identifies fire conditions, the sprinkler can trigger immediately without the delay associated with signal transmission and mechanical actuation over distance.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The detector is positioned within the sprinkler head in advance, ready to detect fire conditions at the exact location where suppression is needed. This preliminary positioning ensures that detection and response occur at the source of the fire, minimizing response time.

Inventive Principle:

Principle #10Preliminary action

3Ease of manufacture

If mechanical actuation is used for sprinkler activation, then the system can operate without external power sources, but the activation is delayed or improper resulting in inefficient fire mitigation

Engineering Contradiction:

Improvesystem simplicityVSAvoidfire mitigation efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent replaces the traditional mechanical actuation system with an electronically controlled system. The detector triggers an electrical signal that activates a solenoid or motor to open the valve, providing more precise and timely control compared to purely mechanical thermal expansion or fusible link mechanisms.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The integrated detector provides real-time feedback on fire conditions directly to the sprinkler's actuation mechanism. This feedback loop ensures that the sprinkler activates based on actual detection data, improving the precision and timing of fire mitigation compared to passive mechanical systems.

Inventive Principle:

Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enables more precise and timely activation of sprinklers, reducing delays and wastage of fire suppressant fluid, while effectively mitigating fires and minimizing damage.

Implementation Method 1

The detector is to cause the operation of the trigger responsive to detection of a fire condition

Methodology Applied

Scientific EffectFire detection:

Implementation Method 2

triggers the sprinkler activation through a heat-sensitive mechanism or resistive heating component

Methodology Applied

Scientific EffectResistive heating: Joule Heating

Data Source

PatentUS20250152984A1Sprinkler head with integrated fire detecting means

Publication Date: 2025.05.15 TYCO FIRE PRODUCTS LP

AI summary

A fire sprinkler includes a body, a seal, a trigger, and a detector. The body includes an inlet, an outlet, and a passageway between the inlet and the outlet. The seal is coupled with the outlet to seal the outlet. The trigger is coupled with the seal such that operation of the trigger releases the seal from the outlet. The detector is coupled with the body. The detector is to cause the operation of the trigger responsive to detection of a fire condition.