Server Fire Suppression via Solid Propellant Gas Generation
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Solution Overview
Problem
Data centers face challenges in preventing overheating and fires in electrical devices due to imbalanced processing tasks and inefficiencies in air conditioning systems, leading to potential equipment damage and significant economic losses, with existing fire detection systems often activating too late and exposing undamaged equipment to fire extinguishing gases.
Innovation Solution
A system comprising a solid propellant gas generator, igniter, filter, and fire detection means to cut off power and supply inert gas to the electrical device after detecting elevated temperature, carbon monoxide, or smoke levels, thereby preventing fires by removing flammable gases and oxygen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air conditioning systems are operated at maximum cooling power to prevent overheating, then cooling capacity is improved, but system complexity and energy consumption increase while still failing to prevent individual server overheating
Solution Approach 1:
The patent divides the data center cooling system into individual server-level units. Each server has its own temperature sensor, power cutoff mechanism, and fire suppressant charge, enabling independent monitoring and protection of each device rather than relying on a centralized complex system.
Solution Approach 2:
Each server is equipped with self-protection capabilities including onboard temperature sensors, local power cutoff relays, and integrated fire suppressant charges. When overheating is detected, the server automatically cuts its own power and activates its own suppressant charge without requiring external intervention or complex centralized control.
2Reliability
If fire detection systems are used to detect fires in electrical devices, then fire detection capability is improved, but response time is delayed until smoke is sufficient to trigger detectors
Solution Approach 1:
The system performs preliminary temperature monitoring and automatically cuts power when predetermined temperature thresholds are exceeded, before a fire can develop. This preventive action occurs in advance of fire detection, eliminating the need to wait for smoke generation and detector activation.
Solution Approach 2:
The system applies preliminary anti-action by cutting power supply and activating fire suppressant charges before a fire can fully develop. This prevents the harmful fire condition from occurring in the first place, rather than merely detecting and responding to it after smoke is present.
3Object-affected harmful factors
If fire extinguishing gases are discharged to suppress fires in data centres, then fire suppression is improved, but all equipment in the data centre is exposed to the extinguishing gas causing damage
Solution Approach 1:
The fire suppressant charge is localized to each individual server or rack enclosure. When activated, the suppressant is discharged only into the specific enclosure where overheating was detected, providing local fire suppression protection without exposing other equipment in the data center to harmful extinguishing gases.
Solution Approach 2:
The data center is segmented into individual protected enclosures, each with its own fire suppressant charge. This segmentation allows fire suppression to be applied locally to the affected area only, preventing the spread of harmful extinguishing gases to other equipment throughout the facility.
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 effectively prevents fires in electrical devices by supplying inert gas after power cutoff, reducing the risk of fire spread and avoiding damage to undamaged equipment, while providing a localized and efficient cooling solution that does not require complex sensor arrays or expose other devices to fire extinguishing gases.
Implementation Method 1
a container comprising a solid propellant gas generator... to supply a flow of inert gas as generated by the solid propellant gas generator
Implementation Method 2
an igniter positioned inside the container... will actuate the igniter after a predetermined delay time
Data Source
AI summary
The invention is directed to a system comprising (i) an electrical device connected to a source of electrical power; (ii) a container comprising a solid propellant gas generator, an igniter and a filter positioned between the solid propellant gas generator and an outflow opening for a gas, which outflow opening is fluidly connected to the electrical device; (iii) means to detect fire indicator levels, comprising means to detect a temperature, a carbon monoxide level and a smoke particle level in the electrical device; and (iv) a control system having a control logic which, when two of the three fire indicators levels as measured by means (iii) are above a threshold value, will cut off the source of electrical power, and which will actuate the igniter after a predetermined delay time.