IG541 Fire Automatic
Extinguishing Solution
for Data Centers
project
General Provisions of the Plan
What are the project background and requirements
Project Background and Requirements
As a key infrastructure for carrying computing power storage, network transmission, government affairs, and core business of enterprises, data centers deploy a large number of high-precision electrical equipment such as servers, switches, storage arrays, UPS power supplies, etc. internally. They have the characteristics of dense equipment, high value, strong business continuity requirements, long unattended hours, fast fire spread, and difficult firefighting. Traditional water sprinkler fire extinguishing can easily cause equipment short circuits, water damage, and data loss. Fire extinguishing agents such as heptafluoropropane have a slight greenhouse effect and cannot adapt to high-end, large, and green data center construction standards.
In order to meet the requirements of data center fire safety regulations, prevent fire accidents, ensure equipment safety, achieve stable business operation, and comply with green and low-carbon construction standards, the IG541 mixed gas automatic fire extinguishing system is designed for the core protection area of the data center, and a fully automatic, high safety, zero residue, and environmentally friendly fire protection system is constructed.
basis of preparation
This plan strictly follows current fire safety regulations and industry standards, with the following core principles:
GB 50370-2005
Design Code for Gas Fire Extinguishing Systems
GB 50174-2017
Code for Design of Data Centers
GB 50116-2013
Design Code for Automatic Fire Alarm System
GB 50016-2014, 2018 edition
Code for Fire Protection Design of Buildings
GB 50263-2007
Code for Construction and Acceptance of Gas Fire Extinguishing Systems
Protection Scope
The IG541 fire extinguishing system focuses on protecting the enclosed and sealed core hazardous areas of the data center, including the main server room, storage equipment area, network wiring room, UPS distribution room, precision air conditioning room, battery pack room, core control room, and other enclosed spaces that are strictly prohibited from water stains, corrosion, and require all-weather protection.
Characteristic advantages
Core features and selection advantages of IG541 system
What are the core features and selection advantages of IG541 system
Division of protective zones
IG541 mixed gas fire extinguishing agent is composed of three natural atmospheric gases: 52% nitrogen, 40% argon, and 8% carbon dioxide. It is colorless, odorless, non-toxic, non-conductive, and non corrosive, with an ODP (ozone depletion potential) of 0 and a GWP (greenhouse effect potential) of 0. It is a pure green and clean fire extinguishing medium with extremely short atmospheric retention time and no environmental pollution hazards.
The core principle of fire extinguishing is physical suffocation fire extinguishing: by quickly spraying mixed gas into the protective area, diluting the oxygen concentration in the air, reducing the oxygen content in the protective area to below 15%, destroying the combustion and oxidation conditions, quickly extinguishing electrical fires and solid surface fires, without chemical reactions or decomposition products throughout the process, and without causing secondary damage to precision equipment. At the same time, an 8% carbon dioxide ratio can slightly stimulate human respiration, ensuring normal evacuation of personnel in low oxygen environments.
Core selection advantages (adapted to data center scenarios)
Zero damage to equipment
After extinguishing the fire, there is no residue, no oil stains, no corrosion, no conductivity, no condensation, completely avoiding server short circuits and circuit board damage caused by water stains and chemical residues. The computer room can quickly resume operation after extinguishing the fire
Personnel safety controllable
It belongs to non-toxic fire extinguishing agents, with non-toxic reaction concentration covering the protective design concentration, suitable for data center manned and inspection scenarios, and can ensure the safe evacuation of personnel within the specified evacuation time.
Compliance, environmental protection, and long-term effectiveness
fully compliant with green data center construction standards, without environmental restrictions, and without the need for regular replacement of environmental protection records, suitable for the long-term operation needs of large and ultra large computing power centers.
Strong adaptability to large spaces
Compared to other gas fire extinguishing systems, it is more suitable for standardized computer rooms with higher floors and larger volumes, with even spraying and no dead corners for fire extinguishing
Low operation and maintenance costs
The fire extinguishing agent is taken from natural atmosphere, with stable performance and not easily deteriorated. The steel cylinder agent has a long shelf life and simple daily operation and maintenance testing, without the need for frequent replacement of agents.
design scheme
Overall system design scheme
IG541 Overall system design scheme
System form determination
Based on the characteristics of strong enclosure, clear zoning, and dense equipment in the data center protection zone, this project adopts a fully submerged IG541 inert gas fire extinguishing system and a combined distribution pipeline layout. One system can cover multiple independent protection zones, saving equipment costs and room space, and meeting the protection needs of independent fire extinguishing and non-interference in each zone.
Core Design Parameters (Compliance Standards)
Fire extinguishing design concentration: 39.5% (standard design concentration for electronic computer rooms and communication rooms)
Spray time: Spray the agent to 95% of the design dosage, controlled between 48s and 60s, taking into account both fire extinguishing speed and pressure balance in the protective zone
Fire extinguishing immersion time: 10 minutes for electrical equipment fires and precision machine room fires, and 20 minutes for solid surface fires to ensure thorough extinguishing and prevent reignition
Protective zone enclosure: The fire resistance limit of the enclosure structure is ≥ 0.5h, and doors, windows, and holes have automatic sealing functions. The pressure relief device in the protective zone is set up in compliance with regulations
System startup modes: automatic, manual, and mechanical emergency startup, fully covering emergency scenarios.
System composition architecture
The entire IG541 automatic fire extinguishing system consists of five parts: fire detection and alarm subsystem, fire extinguishing control subsystem, pipe network spraying subsystem, linkage control subsystem, and emergency auxiliary subsystem, achieving fully automated closed-loop management and control from fire detection, alarm, linkage, fire extinguishing, and prompt
Fire detection and alarm system
Adopting a dual detection composite warning mechanism, each protective zone is equipped with a combination of smoke and temperature detectors to avoid false alarms or missed detections from a single detection. When a single detector alarms, only a warning signal is issued; When both smoke and temperature sensors are triggered simultaneously, it is determined to be a real fire situation, and the fire extinguishing linkage process is initiated to minimize the risk of accidental spraying and ensure business stability.
Fire extinguishing control host
Configure a dedicated gas fire extinguishing controller, connected to the data center fire control platform, which can collect real-time fire situation, equipment status, and fault information in the protected area. It supports local control and remote monitoring, and has functions such as delayed start, emergency stop, and manual forced start. The delayed start time is set to 30 seconds, and personnel evacuation time is reserved
Pipeline storage bottle spraying system
Includes core equipment such as IG541 fire extinguishing agent storage bottles, bottle head valves, selection valves, high-pressure pipe networks, nozzles, pressure relief devices, and bottle racks. The storage bottles are centrally arranged in dedicated storage rooms or idle areas in the computer room. A partitioned pipeline network is built using high-pressure seamless steel pipes, and each protective zone corresponds to a dedicated nozzle to ensure uniform gas injection and rapid flooding of the entire area. Simultaneously set up pressure relief ports to balance the internal pressure of the protective zone during spraying, avoiding damage to walls, doors, and windows
Linkage Control System
After the system is triggered, it automatically links with the auxiliary equipment in the protection zone to achieve a fire protection loop: close the fire doors, fire shutters, fresh air fans, air conditioners, and smoke exhaust equipment in the protection zone; Cut off non fire power and lighting power in the protective zone; Retain fire emergency lighting and evacuation instructions; Simultaneously trigger sound and light alarms, gas release indicator lights, and remind personnel not to enter. Support independent linkage of zones, with only faulty zones experiencing power outages and fire extinguishing, while adjacent normal zones continue to operate, ensuring maximum business continuity.
Emergency Assistance System
Each entrance of the protective zone is equipped with sound and light alarms, air release warning lights, and emergency start stop buttons; Mechanical emergency start devices are installed in the storage room, which can be manually activated to extinguish fires in the event of a malfunction in the electrical control system; Supporting emergency lighting and evacuation signs to meet the emergency evacuation needs of personnel
workflow
Complete workflow of system operation
IG541 Complete workflow of system operation
Automated workflow (normal operation mode)
Initial warning
Any smoke or temperature detector within the protected area detects a fire and sends an alarm signal to the control host. The host triggers a local warning and uploads it to the fire platform, but there is no linkage action.
Fire confirmation
The dual detectors alarm simultaneously, and the host determines that it is a real fire. It immediately starts a 30 second fire extinguishing delay and synchronously activates the sound and light alarm in the protective zone to remind on-site personnel to evacuate.
Linkage locking
During the delay period, the system automatically shuts off fans, air conditioning, ventilation holes, cuts off non fire power sources in the protective area, and closes the protective space.
Spray fire extinguishing
After a 30 second delay, the system automatically opens the corresponding zone selection valve and bottle head valve. IG541 gas is quickly sprayed through the pipeline network and nozzle, completely submerging the protective area and implementing suffocation fire extinguishing
Status feedback
After the gas is sprayed, the pressure feedback device sends a gas release signal to the host, and the gas release indicator light at the entrance of the protective area is always on, prohibiting personnel from entering. The system maintains the immersion fire extinguishing state to prevent reignition.
Post disaster reset
After extinguishing the fire and conducting on-site safety inspections, the system is manually reset, ventilation equipment is turned on for air exchange, and power supply and equipment operation in the computer room are restored
Manual Control Process
After on-site personnel discover a fire, they can directly press the emergency start button outside the protection zone, and the system will skip the warning and directly enter the 30 second delayed start process; If the fire situation is misjudged during the delay period, the emergency stop button can be pressed to terminate the fire extinguishing process and avoid accidental spraying losses
Mechanical Emergency Procedures
When the electronic control system fails or loses power, the operation and maintenance personnel can go to the storage room and manually open the bottle head valve and partition selection valve through the mechanical manual device, manually release the fire extinguishing agent, and force the fire extinguishing action to ensure the effectiveness of fire extinguishing in extreme scenarios
configuration standard
Protection zone planning and equipment configuration standards
IG541 Core equipment configuration standards
Principles for Dividing Protection Zones
Divide the protective zone into independent enclosed computer rooms and functional zones, with each zone having a capacity not exceeding the system design limit, to ensure uniform fire extinguishing.
The enclosure structure, doors and windows, and suspended ceiling of the protective zone are completely sealed, and all ventilation and pipeline holes are equipped with automatic sealing devices to prevent gas leakage from affecting the fire extinguishing effect.
Set up prominent fire and air release warning signs at the entrances and exits of the protective zone, and reserve emergency evacuation routes
Core equipment configuration standards
Bottle storage equipment
High pressure seamless IG541 dedicated storage bottles are used, with pressure levels adapted to the computer room environment. The bottle body is equipped with a pressure detection device to monitor the pressure status inside the bottle in real time
Pipe network nozzle
High pressure galvanized seamless steel pipes are used, and the pipe network is arranged horizontally and vertically, firmly fixed. The nozzles are evenly distributed according to the height of the machine room and the layout of the equipment, without any protective blind spots.
Pressure relief device
Each enclosed protective zone is equipped with a compliant pressure relief port, which automatically balances the spraying pressure and protects the building structure.
Control equipment
The fire extinguishing host has fault self checking, memory storage, and remote upload functions, and can be connected to the data center dynamic environment monitoring system to achieve integrated operation and maintenance
Installation acceptance
Construction Installation and Acceptance Plan
IG541 Construction Installation and Acceptance Plan
Construction and Installation Specifications
Strictly following the GB 50263 standard for construction, it is divided into five stages: on-site survey, pipe network prefabrication, equipment installation, line laying, and system debugging. Throughout the construction process, avoid the existing weak and strong electrical lines and precision equipment in the computer room, take measures to prevent dust, shock, and collision, and eliminate the impact of construction on the existing business of the computer room. The equipment in the bottle storage room is neatly arranged and clearly labeled, and the pressure testing, blowing, and anti-corrosion treatment of the pipeline network are in compliance with regulations.
System Debugging
After the construction is completed, comprehensive debugging will be carried out, including detector sensitivity debugging, host logic debugging, linkage equipment debugging, pipeline pressure testing, and simulated spraying test. Focus on verifying the dual detection alarm logic, delayed start function, accuracy of partition linkage, and effectiveness of pressure relief devices to ensure that the system has no faults, no false alarms, and precise linkage.
Completion acceptance
Carry out completion acceptance in accordance with the national fire safety acceptance standards, and submit a complete set of materials including construction materials, equipment qualification certificates, testing reports, commissioning records, etc. The acceptance content includes equipment installation quality, system functionality, linkage logic, sealing of protective areas, pressure relief compliance, etc. After passing the acceptance, a fire safety acceptance report will be issued to ensure that the system is legally and compliantly put into use.
Operations Management
Operation and Maintenance Support and Emergency Management
IG541 Operation and Maintenance Support and Emergency Management
Daily operation and maintenance management
Daily inspection: remote monitoring of system operation status and equipment failure information on a daily basis; Weekly on-site inspection of storage bottle pressure, pipeline integrity, detector status, and effectiveness of warning equipment.
Regular testing: Conduct system function debugging every six months, conduct comprehensive maintenance testing once a year, and perform full verification of pipeline pressure, valve sensitivity, and linkage logic.
Medication maintenance: The IG541 medication has stable performance and does not need to be replaced for a long time. It only requires regular verification of the cylinder pressure and timely replenishment when the pressure is insufficient.
Personnel Training
Conduct specialized training for data center operation and maintenance personnel, covering system principles, equipment identification, daily inspections, troubleshooting, manual operations, emergency response, etc., to ensure that operation and maintenance personnel are proficient in equipment operation and fire emergency procedures
Emergency Response Plan
Develop exclusive fire emergency plans, conduct regular fire drills, clarify the operational norms for the entire process of fire warning, evacuation, fire extinguishing, post disaster reset, equipment inspection, and business recovery, to ensure rapid response and minimize losses in case of sudden fire incidents
summary
Summary of program advantages
IG541 Summary of program advantages
This IG541 fire automatic fire extinguishing solution fully meets the core requirements of high-precision, high reliability, green, and continuous operation in data centers. Compared with traditional water fire extinguishing and heptafluoropropane fire extinguishing solutions, it has the core advantages of zero equipment damage, zero environmental pollution, personnel safety, worry free operation and maintenance, adaptability to large spaces, and fast business recovery. The system adopts fully automatic intelligent linkage logic, with low false alarm rate, accurate fire extinguishing, and compliance standards, which can comprehensively ensure the safety of data center equipment assets and the continuous and stable operation of core businesses. It is the best fire extinguishing solution for high-end data centers and computing centers
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