Categorization of Automatic Fire Extinguishing Systems

Due to the increasing expansion, the development of various industries and the complexity of the stages of production and ... the same is the

risk of occurrence of various incidents, especially the fire, which is one of the most important and most dangerous of these events, is increasing,

in contrast Technology and day-to-day safety and safety issues (announcement and firefighting) are also rapidly evolving. In fact, the progress

of various industries, increasing the likelihood of fire (fire) and fire extinguishing technologies are constantly being challenged. Therefore,

the energy co-operating company, based on its experience, knowledge and mission, is continuously researching and developing fire extinguishing

equipment ...

Generally, automatic fire extinguishing systems can be divided into five categories:

   i - Automatic automatic fire extinguishing system
   ii - Automatic gas fire extinguishing system
   iii - Automatic powder fire extinguishing system (Aerosol)
   iv - Automatic foam fire extinguishing system
    v - Automatic Mud Fire Fighting System (Water Mist)
   vi  - Vortex automatic fire system

Automatic water  Firefighting System

The main parts of this system are:

    i - The Tank or water pool
    ii - Fire pumps
    iii- Control valves such as Deluge Valve, Wet Valve, Dry Valve and so on
    iv -Sprinkler or water spray

Usage: This system is used for class A fire suppression and cooling classes B and C. Some of its applications include office buildings, commercial

buildings, hotels, museums, parking lots, power transmissions, tanks and fuel and chemical storage tanks, ships, ports, warehouses

Automatic Gas Firefighting System

The system consists of sub-sets such as FM200, CO2, Inert Gas, Novec 1230 and other gas systems, each of which has the advantages and disadvantages

mentioned in the training section of this site.

Fire extinguishing systems play an important role in the concept of firefighting, especially in cases where other firefighters (such as water systems) can not do this.

In recent years and after Halon's ban since 1994, there have been many efforts to introduce and use other gases.

ISO and NFPA organizations have introduced thirteen types of gases from static sources such as argon and nitrogen and their mixtures, as well as halogenated

hydrocarbons such as NOVEC 1230 or FM200.

Generally, each fire extinguishing system consists of the following parts:

i-Gas cylinders with actuators

ii-Piolot Cylinders

iii-Manifold,Gas discharge hose, cylinder actuator hoses

iv-Electric valves and pressure switch

v-Gas discharge nozzles

Usage: Typically, this type of fire suppression system is used in classes A, B and E. Some of its applications include power boards, control panels, telecommunication boards, computer servers, power motors, UPS rooms, control rooms, Marshaling rooms

Automatic fire extinguishing systems (Aerosol)

Each aerosol cylinder consists of very fine particles of potassium and is stimulated either by thermal or electrical.

After excitation, these particles are removed from the cylinder and mixed with gases (often CO2, N2 or water vapor) to form a combustible substance.

Potassium compounds need the least amount of energy to ionize, and this energy is absorbed by fire. Then, potassium ions are combined with fire ions (O, H, OH),

and the chain reaction of the fire stops without reducing oxygen.

Automatic Foam Firefighting System

This system is the most effective method for class B (liquid fuels) fire suppression. Also available in Class A. The main parts of this system are:

i-Foam Storage Tank ( Bladder Tank)

ii- Water and Foam Mixer (Proportioner)

iii-Nozzle

Usage: Chemical storage, petroleum and chemical reservoirs, aircraft hangars and helicopters, oil facilities

Automatic Firefighting systems, fog or water powders (water mist)

The basis of the Water Mist system, as its name suggests, is based on the production of water dust (such as fog), which acts as a fine-water particle in a protected

environment.The diameter of these particles is between 300 and 1000 microns and causes the electrical conductivity of the water to disappear. In fact, the system,

like the fire extinguishing system, has a cooling effect and, like a fire extinguishing system, prevents oxygen from reaching the fire.

The main parts of this system are:

i -Water cylinders with stimulant valves

ii -High-pressure gas cylinders (nitrogen or air) with driven valves

iii-Manifold,Gas discharge hose, cylinder actuator hoses

iv-Electric valves and pressure switch

v-Nozzles

Automatic Vortex Firefighting System

Vortex Fire Extinguishing System (Vortex) is a hybrid water system with nitrogen. The following table shows the comparison between the fire extinguishing systems:

 

Speed Function

Pressure(LPM)

size of each drop of water

Flow of water per Nozzle

 System

High

25

10

7/3

vortex

          High

350

400- 1000

140

Medium pressure water powder

Low

1500-2500

50- 100

30

High pressure water powder

Medium

More than 20

More than 1000

More than 95

Sprinkler

 

The application of these systems is in places and for various equipment, for example, turbines, pumps, oil installations, cable channels, power plants, etc.

The above article, based on years of experience, is the knowledge of the engineers of the company, Energy Coalition and Existential Mission The energy co-team,

based on the slogan (the secure city, wants help), is to inform you of your loved ones to the field.

 

 

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