Firefighting Valve System for Selective Propellant Gas Routing
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Solution Overview
Problem
Existing firefighting methods struggle with selective application of extinguishing mist and gas, often resulting in unintended mixing of fluids and gases, which compromises safety and efficiency, especially in sensitive areas with specific fire types.
Innovation Solution
A system utilizing a common propellant gas supply to either charge extinguishing fluid containers or gas nozzles, controlled by a valve system activated by independent fire detectors, ensures selective use of extinguishing mist or gas, preventing mixing and meeting safety standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common propellant gas supply is used for both extinguishing fluid container and extinguishing gas nozzle, then device complexity is reduced, but reliability deteriorates due to risk of mixing extinguishing fluid and gas
Solution Approach 1:
The system segments the propellant gas supply into separate dedicated supplies for extinguishing fluid containers and extinguishing gas nozzles. This physical separation ensures that propellant gas is never mixed with extinguishing fluid, while still allowing both systems to share the same overall architecture and control mechanisms.
Solution Approach 2:
The patent introduces valve arrangements as intermediary components that control and direct propellant gas flow to either extinguishing fluid containers or extinguishing gas nozzles. These valves act as mediators that prevent direct mixing while enabling selective charging of the appropriate system based on fire detection and control signals.
2Reliability
If separate propellant gas supplies are used for extinguishing fluid container and extinguishing gas nozzle, then reliability improves by preventing mixing, but device complexity increases
Solution Approach 1:
The patent creates a universal propellant gas supply system that can serve multiple functions - charging both extinguishing fluid containers and extinguishing gas nozzles - through a single integrated architecture. While separate physical supplies ensure reliability, the system design allows both functions to be managed within a unified framework, reducing overall complexity compared to completely independent systems.
3Object-affected harmful factors
If extinguishing gas is used in rooms with technical equipment, then object-generated harmful factors are reduced, but productivity decreases due to inability to extinguish certain fire types
Solution Approach 1:
The system applies different extinguishing media qualities to different locations based on fire type and sensitivity requirements. Extinguishing gas is used in areas with sensitive electrical equipment where water damage must be avoided, while extinguishing mist is used in areas where rapid fire suppression is the priority. The valve arrangement enables this spatial differentiation of extinguishing media properties.
Solution Approach 2:
The system dynamically selects the appropriate extinguishing media based on real-time fire detection and location. The valve arrangement responds to control signals from fire detectors to direct propellant gas and extinguishing agents to the appropriate system, allowing the system to adapt its behavior based on the specific fire scenario and protect different types of equipment appropriately.
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 approach allows for safe and efficient firefighting in different environments by preventing the mixing of extinguishing fluids and gases, meeting safety requirements and reducing technical demands by eliminating the need for separate propellant gas supplies.
Implementation Method 1
The propellant gas supply 8 is formed by a compressed gas bottle. An extinguishing gas is stored under high pressure in the compressed gas cylinder.
Implementation Method 2
Due to the high pressure with which the propellant gas penetrates into the extinguishing fluid container 2, it is pressed out of the extinguishing fluid container and is at high pressure at the extinguishing mist nozzles 4. As a result, a finely divided mist is discharged into the passenger compartment 16.
Data Source
Figure 1
AI summary
The invention relates to a fire fighting method and device, wherein at least one extinguishing fluid container (2) for releasing an extinguishing mist is pressurized with propellant via at least one extinguishing mist nozzle (4), and wherein the pressurization of the extinguishing fluid container (2) and the extinguishing gas nozzle (6) takes place via a joint propellant supply (8). To render targeted pressurization with either extinguishing fluid or extinguishing gas possible, the invention proposes that either only the extinguishing fluid container (2) or only the extinguishing gas nozzle (6) should be pressurized with propellant via the joint propellant supply (8).