Automatic or manual start of IG541 inert gas fire extinguishing
system
IG541 fire extinguishing system fire extinguishing principle:
IG-541 fire extinguishing system fire extinguishing mechanism
belongs to physical fire extinguishing method, mainly asphyxiation,
reducing the oxygen concentration in the space. After the IG541
mixed gas (52% ammonia, 40% argon and 8% carbon dioxide) is
released, it reduces the oxygen concentration to the point where it
cannot support combustion to extinguish the fire. Usually, the air
in the protection area contains 21% oxygen and less than 1% IG541.
When the oxygen in the protection area drops below 15%, most of the
combustibles will stop burning. The mixed gas can reduce the oxygen
in the protection area to 12.5%, while increasing IG541 to 4%. The
increase in the proportion of IG541 speeds up people's breathing
rate and ability to absorb oxygen, thereby compensating for the
lower oxygen concentration in the ambient atmosphere. When the fire
extinguishing design concentration in the fire extinguishing system
is not more than 43%, the system is safe and harmless to the human
body.
Composition and quality requirements of IG541 mixed gas
| Main components | Nitrogen (N2) | Argon gas (Ar) | Carbon dioxide (CO2) |
| Proportion | 48.8～55.2% | 37.2～42.8% | 7.6～8.4% |
| Purity requirement (volume ratio) | ≥99.9% | ≥99.9% | ≥99.5% |
| Water content requirement (mass ratio) | ≤4×10-4% | ≤5×10-4% | ≤1×10-3% |
| Oxygen content requirement (mass ratio) | ≤3×10-4% | ≤3×10-4% | ≤1×10-3% |
System technical parameters and composition
System technical parameters
| Executive standard | GB 25972-2010 |
| System working pressure(20℃时,MPa) | 15 | 20 |
| Volume of fire extinguishing agent bottle group(L) | 70 | 80 | 90 | 80 | 82 | 90 |
| System injection time(s) | ≤60 | ≤60 |
| Filling quantity of extinguishing agent(kg) | 14.77 | 16.88 | 18.99 | 22.49 | 23.05 | 25.3 |
| System service temperature(℃) | 0～+50 | 0～+50 |
| Minimum fire extinguishing design concentration | 37.5% | 37.5% |
| Safe design concentration of manned workplace | ≤43% | ≤43% |
Company introduction:
Guangzhou Rongan Fire Protection Equipment Co., Ltd. is a
professional manufacturer of fire protection facilities integrating
R&D, production, design and sales services. The company has
experts from the national fire protection industry standards
committee and a group of professional technical service teams with
more than ten years of experience in the fire protection industry,
and will spare no effort to provide you with the most intimate and
professional comprehensive technical solutions for fire protection
engineering products. "Rongxiao" series products produced by the
company have passed the national compulsory product certification
and the national fixed fire extinguishing system inspection center,
with reliable quality and stable performance, and the factory has
passed the ISO9001 quality system certification.
Frequently asked questions:
Q1: Are you a manufacturer or a trading company? A1: We are
manufacturers.
Q2: How long is the delivery time? A2:10 days, which can be
negotiated according to the quantity.
Q3: How to deal with the fault? A3: During the warranty period, we
will provide you with a remote emergency plan during working hours.
During the free maintenance period, the company will replace spare
parts or complete machines that have failed due to defects or
quality problems free of charge.
