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Mixing
Gas Fire Extinguishing System
The
Extinguishing Agent
For
the purpose of ozone layer protection, our company is the first
in China to develop and manufacture the new type of automatic
fire extinguishing system. The extinguishing agent of the
system is a mixture of N2, Ar and CO2 in
a definite ratio.
The
agent is a natural clean gas with the following properties:
It will not pollute the protected object
It will not decompose the ozone layer (i.e. ODP is zero)
It will not put harmful effects on human body, animals or plants
It will not conduct electricity
It is colorless, smell-less, poisonless and harmless and is called
"purely natural green extinguishing product"
This
extinguishing agent is an ideal substitute for halon. The
mechanism of fire extinguishing is to reduce oxygen concentration
around fire below the lower limit where burning is impossible.
That is asphyxiating extinguishment, a physical extinguishing
method.
The
Structure of the System:
Metal-membrane
sealer of the bottle valve ensures an excellent air-tight seal
and makes permanent storage possible.
Multi-start
mode (e.g. electric start, pneumatic start, electric-manual start
and jury mechanical-manual start) makes absolutely reliable start
assured
Restriction
orifice lowers the pipe pressure and makes the pipes safe
Special
electric start device decreases the start current to a lower level,
which has resulted in a great reduction in power for the control
unit and in volume of the batter and has made the system more
compact
Application
Scope
The
Mixing Gas Fire Extinguishing System is a full-submerging system.
It can be divided into independent unit system and combined distribution
system. Its application scope and exceptional cases are
almost the same as CO2 system and halon system.
It can be used for A type surface fire, B type fire, C type fire
and fire of electric equipment. But it should not be used
for the fire of chemical products with oxidants and the fire of
active metal or metal hybrid.
Technical Parameters
Extinguishing method: full-submerging method
Designed working pressure (nominal pressure): 15 MPa
Maximum working pressure: 17.5 MPa
Minimum working pressure: 13.9 MPa
Charged density of extinguishing agent: <= 0.193kg/L
Composition of extinguishing agent: N2, Ar, CO2
Ambient temperature: -20oC ~ 50oC
Designed pressure of bottle: 15 MPa
Safe bleeding pressure of bottle valve: 19 + 0.95MPa
Working pressure of collective pipes: >= 15MPa
Safe bleeding pressure of collective pipes: 18 MPa + 0.75
MPa
Working pressure of starting gas: >= 8MPa
Capacities of starting gas bottles: 3L, 20L
Starting gas: N2
Electric start voltage: DC 12V ~ 28.8V
Jury mechanical-manual working force: <= 150N
Main power supply: AC 220V, 50Hz
Reserve power supply: DC 24V
Mounting height of collective pipes: <= 2400mm
Mounting height of select valve: ~ 1500mm
Ejecting time of extinguisher: <= 60s
Extinguishing time: within 30s after ejection
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