Temperature-Sensitive Fire Extinguisher with Thermal Trigger Mechanism

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Solution Overview

Problem

Existing fire extinguishing devices are complex, costly, require specific environmental conditions, and often rely on inductive detectors, leading to slow response times and potential secondary fire reignition, especially in small spaces like power distribution cabinets.

Innovation Solution

A temperature-sensitive automatic rapid gas generation fire extinguishing device with heat absorption and gas generation units that trigger baffles to create sealed and open spaces within a box body, using perfluorohexanone and nonmetallic high-nitrogen oxygen-containing organic compounds to extinguish fires without external detectors, leveraging heat absorption and gas release for rapid fire suppression.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If inductive detectors are used for fire detection, then fire extinguishing can be triggered, but the response time is slow and the device complexity increases

Engineering Contradiction:

Improvefire extinguishing response timeVSAvoiddevice complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The patent replaces inductive detectors with a direct thermal response mechanism. The fire extinguishing agent is in direct contact with the fire source, and thermal energy from the fire directly triggers the decomposition reaction, eliminating the need for electrical sensing systems and reducing response time.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The fire extinguishing device uses the fire's own thermal energy to trigger its activation. The heat from the fire directly causes the decomposition of the fire extinguishing agent, making the system self-activating without requiring external detectors or control systems.

Inventive Principle:

Principle #25Self-service

2Reliability

If complex inductive detection systems are installed, then fire can be detected, but maintenance cost increases and reliability decreases

Engineering Contradiction:

ImprovereliabilityVSAvoidmaintenance cost

Core Design Contradiction:

ReliabilityVSEase of repair

Solution Approach 1:

The patent uses a simple, inexpensive fire extinguishing agent composition that can be easily replaced if needed. The agent is contained in a straightforward vessel structure that is simpler and cheaper to maintain than complex inductive detection systems.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent removes the complex inductive detection components entirely, extracting only the essential fire extinguishing function. This eliminates the maintenance and reliability issues associated with electrical detectors while keeping the core fire suppression capability.

Inventive Principle:

Principle #2Taking out (Extraction)

3Productivity

If traditional fire extinguishing devices are used, then fire can be extinguished, but they require specific environmental conditions and have slow response

Engineering Contradiction:

Improvefire extinguishing efficiencyVSAvoidenvironmental adaptability

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent formulates a fire extinguishing agent with specific thermal decomposition characteristics that activate within a defined temperature range. This allows the system to respond reliably to fire conditions while maintaining simplicity and eliminating the need for complex environmental sensing.

Inventive Principle:

Principle #35Parameter changes

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

Enables rapid and effective fire extinguishing in small spaces without inductive devices, maintaining a clean environment and reducing maintenance costs, with a high fire extinguishing efficiency and low production costs, utilizing heat absorption and gas generation for automatic fire suppression.

Implementation Method 1

A lower part of an inner side of the spherical container is filled with a perfluorohexanone fire extinguishing agent

Methodology Applied

Scientific EffectEvaporation: Evaporation

Implementation Method 2

heat absorption fire extinguishing units

Methodology Applied

Scientific EffectHeat absorption: Absorption (physical)

Implementation Method 3

Multiple gas generation fire extinguishing units are placed on an inner side wall of the box body, and a second trigger unit is arranged between one of the gas generation fire extinguishing units close to the second baffle and the inner side wall of the box body

Methodology Applied

Scientific EffectChemical decomposition: Decomposition (biological)

Data Source

PatentUS11951343B1Temperature-sensitive automatic rapid gas generation fire extinguishing device

Publication Date: 2024.04.09 BEIJING INST OF TECH

AI summary

A temperature-sensitive automatic rapid gas generation fire extinguishing device is provided, including a box body; a plurality of heat absorption fire extinguishing units are placed on an inner side wall of the box body, and a first trigger unit is arranged between one of the heat absorption fire extinguishing units close to the first baffle and the inner side wall of the box body; the one of the heat absorption fire extinguishing units triggers the first baffle to move down through the first trigger unit, and a relatively closed space is formed in the box body; a plurality of gas generation fire extinguishing units are placed on an inner side wall of the box body, and a second trigger unit is arranged between one of the gas generation fire extinguishing units close to the second baffle and the inner side wall of the box body.