Network FM200(HFC-227ea) fire extinguishing

External storage type FM200(HFC-227ea) fire extinguishing device is an advanced gas fire extinguishing system. Its core design lies in storing the driving gas (usually nitrogen) and the fire extinguishing agent (heptafluoropropane) separately, and providing power through an independent driving gas cylinder group to achieve efficient discharge of the fire extinguishing agent. The following is a detailed analysis from aspects such as definition, working principle, technical characteristics, standard specifications, and market applications:

i.Definition and Classification
Definition
The external storage type HFC-227ea fire extinguishing device (also known as the external pressure storage system) is a total flooding fire extinguishing system, in which the driving gas and the fire extinguishing agent are stored in different containers respectively. When the system starts up, the driving gas enters the fire extinguishing agent cylinder group through the pressure reducing device, pushing the liquid FM200(HFC-227ea) to be discharged at high speed through the pipeline network to the protected area, achieving rapid fire extinguishing.
Classification
By nozzle form:
Fixed type: The nozzle direction cannot be adjusted and is suitable for fixed scenarios such as computer rooms.
Adjustable type: The direction of the nozzle can be freely adjusted, making it suitable for complex scenarios such as airport runways and navigation light poles.
By system structure:
With a pipe network system: A dedicated bottle storage room needs to be set up, which is suitable for long-distance transportation and large-space protection.
Pipe-free systems (such as cabinet type and suspended type) : No pipes are required. They can be directly installed within the protected area and are suitable for small Spaces.

Ii. Working Principle
System startup process
Fire detection: Smoke and temperature detectors in the protected area issue fire alarm signals and transmit them to the controller.
Signal processing: After logical judgment, the controller issues an audible and visual alarm and initiates a delay program.
Drive gas release: After the delay ends, the container valve of the drive gas cylinder group opens to release high-pressure nitrogen.
Fire extinguishing agent discharge: Nitrogen is depressurized by a pressure reducing device and then enters the fire extinguishing agent cylinder group, pushing liquid FM200(HFC-227ea) to be discharged at high speed through the pipeline network to the protected area.
Atomization and fire extinguishing: Liquid heptafluoropropane vaporizes and absorbs heat in the protected area, lowering the temperature. At the same time, the pyrolysis products inhibit the combustion reaction, achieving rapid fire extinguishing.
Key components
Fire extinguishing agent cylinder group: Stores liquid heptafluoropropane, equipped with container valves, liquid level measurement devices, etc.
Drive gas cylinder group: Stores high-pressure nitrogen and provides power.
Pressure reducing device: Regulates the pressure of the driving gas to ensure the stable discharge of the fire extinguishing agent.
Pipeline network and nozzles: Deliver the fire extinguishing agent to the protected area, and the nozzles achieve uniform atomization.
Control components: including controllers, signal feedback devices (pressure switches), emergency start/stop buttons, etc.

Iii. Technical Features and Advantages
Long-distance transmission capacity
The maximum conveying distance of the fire extinguishing agent can reach up to 260 meters, making it suitable for engineering projects where the distance between the storage room and the protected area is relatively long.
The pipe diameter of the pipeline network is relatively small, reducing the investment cost of pipelines.
High-efficiency atomization and rapid fire extinguishing
The high pressure at the nozzle inlet improves the atomization effect of the fire extinguishing agent and shortens the discharge time (≤10 seconds).
FM200(HFC-227ea) vaporizes and absorbs heat rapidly, reducing the temperature in the protected area. The pyrolysis products inhibit the combustion chain reaction, resulting in high fire extinguishing efficiency.
Environmental protection and safety
FM200(HFC-227ea) is a colorless, odorless, non-conductive gas that does not damage the ozone layer (ODP=0) and meets environmental protection requirements.
The system is equipped with a safety relief device to prevent overpressure risks. The separate storage design of driving gas and fire extinguishing agent reduces the risk of leakage.
Applicable scenarios
Large-space venues: such as data centers, super high-rise buildings, power substations, petrochemical storage tank areas, etc.
Long-distance transportation requirements: Scenarios where the distance between the storage bottle room and the protected area exceeds 30 meters or there is a height difference (≥50 meters).
Renovation project: Applicable to the renewal and transformation of the halon 1301 fire extinguishing system, and the original pipeline network can be reused.

Summary
The external storage type HFC-227ea(FM200) fire extinguishing device is designed with the core of separate storage of driving gas and fire extinguishing agent. With advantages such as long-distance transportation, efficient atomization, and rapid fire extinguishing, it has become the preferred solution for high-demand scenarios such as data centers and super high-rise buildings. Its development is strictly constrained by standards and norms, and the concentration of the industrial chain is relatively high. In the future, it will continue to optimize its technical performance and application scope with the promotion of policies and the growth of market demand.