Pre-Engineered External Storage FM200 System
Description:
Heptafluoropropane (HFC-227ea/FM200) is a clean gas fire
extinguishing agent that primarily extinguishes fires chemically,
while also providing physical extinguishing properties. It is
colorless, odorless, low-toxic, non-conductive, and
non-contaminating to the objects being protected.
Our company's externally stored pressurized heptafluoropropane
(HFC-227ea) fire extinguishing system (compliant with standard
Q/HFRD 001-2046) incorporates advanced domestic and international
gas fire extinguishing research technologies, offering high
strength, safety, reliability, and easy operation and maintenance.
It features both automatic and manual activation. Relying on an
external drive, it delivers the agent over a greater distance
within the effective fire extinguishing time.
System composition:
This automatic fire extinguishing system primarily consists of a
fire extinguishing agent storage cylinder, container valve, power
drive cylinder assembly, drive gas cylinder assembly, selector
valve, liquid check valve, gas check valve, safety valve, signal
feedback device, cylinder frame, nozzle, high-pressure hose,
pressure reducing device, level gauge, low-leakage, high-sealing
valve, and piping system, allowing it to be assembled into a
standalone unit. It can be used in various forms, such as combined
distribution systems, to provide single-zone and multi-zone fire
protection. It is widely used in computer rooms, power distribution
rooms, telecommunications centers, libraries, archives, treasure
collection rooms, underground projects, and other locations for
Class A surface fires, Class B and C fires, and electrical
equipment fires. However, it is not suitable for fires involving
active substances such as potassium, sodium, magnesium, and
uranium, as well as metal chlorides and digestive fiber.
Main technical performance parameters of the system:
Specification and Model | QMQ5.6/90W-XJ QMQ5.6/120W-XJQMQ5.6/150W-XJQMQ5.6/180W-XJ QMQ4.2/245W-XJ | Storage bottle capacity | 90L,120L,150L,180L,245L |
Storage pressure at 20℃ | 0.3MPa | Extinguishing agent discharge time | ≤10s |
Fire extinguishing agent filling density | ≤1250kg/m3 | Operating temperature | 0℃～50℃ |
Pressure of the driving gas cylinder group at 20℃ | 6.0MPa | Power-driven bottle filling pressure | 13.5MPa |
System protection area | The largest single area800m² | System protection volume | The largest single area3600m³ |
System startup method | Automatic, electrical manual, mechanical emergency manual | Nozzle inlet pressure | ≥0.6MPa |
| | System working power supply | AC 220V DC 24V 1A |
Fire extinguishing principle of fire extinguishing agent:
HFC-227ea fire extinguishing agent extinguishes fire mainly due to
its fast heat removal speed. Its fire extinguishing principle is
composed of the following three parts:
1) cooling the protected area; 2) dispersion of fire extinguishing
agent; 3) consumption of oxygen.
(1) HFC-227ea fire extinguishing agent is sprayed into the
protected area in liquid form. When spraying out of the nozzle, the
liquid fire extinguishing agent can quickly turn into gas and
absorb the heat of the master. It reduces the temperature of the
protected area and the surrounding of the flame.
(2) HFC-227ea fire extinguishing agent is composed of large
molecules. When extinguishing a fire, some of the bonds in the
molecules are broken and heat is absorbed.
(3) The spraying of fire extinguishing agent and the presence of
flame in the protected area reduce the concentration of oxygen,
thereby reducing the combustion rate.
Working principle of independent unit system
The working principle of this system is relatively simple. Only
when a fire occurs, the alarm control panel issues a command. After
a delay, the solenoid valve opens and releases the nitrogen in the
driving gas bottle group. The starting gas passes through the
starting pipeline, opens the power drive bottle group to work, and
the gas in the power drive bottle group pushes the fire
extinguishing agent in the fire extinguishing agent storage bottle.
The fire extinguishing agent passes through the connecting hose and
the liquid flow one-way valve into the collecting pipe, the
delivery pipe network, and the nozzle to spray the fire
extinguishing agent into the protected area to put out the fire.
 |
Multiple cylinders for one zone | Multiple cylinders for multiple zones |
Applications:
It is widely used in computer rooms, power distribution rooms,
telecommunications centers, libraries, archives, treasure chest and
underground engineering for the class A, B, C fire and electrical
equipment fire. But it is not applicable to potassium, sodium,
magnesium, uranium and active metal chloride and digestive fiber
fire places.
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