1. Foam Fire Extinguishing System

Designed specifically for liquid fires, especially in petrochemical sites.

1.1 System Components:

• Foam fire pump & foam liquid pump
• Foam proportioner
• Foam liquid storage tank
• Foam generating device
• Pipes & valves
• Power supply & control devices

1.2 System Types:

• Low-expansion foam system
• Medium-expansion foam system
• High-expansion foam system
• Foam-water sprinkler system
• Foam spray system

1.3 Main Application Scenarios:

2. Water Spray & Fine Water Mist Fire Extinguishing Systems

2.1 Water Spray System Components:

• Fire water supply system (water source, supply, pipe network, etc.)
• Deluge alarm valve
• Filter device
• Water mist sprinklers
• Power supply & control devices

2.2 Water Spray System Types (by protection purpose):

• Fire extinguishing
• Protective cooling

2.3 Fine Water Mist System Components:

• Fire water supply system (water source, supply, pipe network, etc.)
• Control valve
• Filter device
• Fine water mist sprinklers
• Power supply & control devices

2.4 Fine Water Mist System Types:

• By pressurization method: pump group system, bottle group system
• By sprinkler type: closed system, open system

2.5 Water Source Requirements:

2.6 Control Modes:

3. Fixed Fire Cannon & Automatic Tracking Positioning Jet Fire Extinguishing System

3.1 Fixed Fire Cannon System

3.1.1 System Components:

• Fire water supply system (water source, supply, pipe network, etc.)
• Foam proportioning device & foam liquid tank (for foam cannons)
• Dry powder tank & nitrogen tank (for dry powder cannons)
• Fire turret
• Power supply & control devices

3.1.2 Types (by spray medium):

• Water cannon system
• Foam cannon system
• Dry powder cannon system

3.1.3 System Requirements:

• Indoor fixed water cannon systems should use wet water supply systems, with fire pump start buttons installed at cannon positions.
• Temporary high-pressure water supply systems for water/foam cannons must have automatic start functions.
• Valves in fixed fire cannon systems should have working position locking devices and clear indicators.

3.2 Automatic Tracking Positioning Jet System

3.2.1 System Components:

• Fire water supply system (water source, supply, pipe network, etc.)
• Fire extinguishing device
• Water flow indicator
• Simulated end test device
• Detection device
• Power supply & control devices

3.2.2 System Types:

• Automatic fire cannon system
• Jet-type automatic jet system
• Spray-type automatic jet system

4. Gas Fire Extinguishing System

4.1 System Components:

• Storage device (for pipe network systems: storage containers, container valves, etc.)
• Driving device
• Selector valve (for combined distribution systems)
• Sprinklers
• Pipes & fittings
• Power supply & control devices

4.2 System Types:

• FM-200 (HFC-227ea) fire extinguishing system
• IG541 mixed gas fire extinguishing system
• Heat aerosol pre-engineered fire extinguishing system

4.3 Application Scenarios:

4.4 Protection Zone Requirements:

• The enclosure structure must withstand overpressure to maintain integrity during agent release and design immersion time.
• The enclosure must be airtight to maintain agent concentration ≥design fire extinguishing/inerting concentration during immersion.
• Protection zone doors should open towards evacuation directions and self-close.

5. Dry Powder Fire Extinguishing System

5.1 System Components:

• Storage device
• Selector valve (for combined distribution systems)
• Delivery pipes
• Sprinklers

5.2 System Types (by application method):

• Total flooding fire extinguishing system
• Local application fire extinguishing system

5.3 Fires Suitable for Extinguishing:

• Gas fires where the gas source can be cut off before extinguishing
• Flammable/combustible liquid and meltable solid fires
• Combustible solid surface fires
• Live electrical equipment fires

5.4 Fires NOT Suitable for Extinguishing:

• Chemicals like nitrocellulose and explosives that oxidize rapidly without air, and strong oxidizers
• Active metals (potassium, sodium, magnesium, titanium, zirconium) and their chlorides

5.5 Protection Zone Requirements:

6. Fire Auto-Alarm System

6.1 System Components:

• Fire detectors
• Manual fire alarm buttons
• Fire sound & light alarms
• Fire alarm controllers
• Fire linkage controllers
• Fire emergency broadcast
• Fire dedicated telephone
• Fire control room graphic display device
• Modules, bus short-circuit isolators
• Power supply, wiring, etc.
• Combustible gas detection + electrical fire monitoring system

6.2 System Types:

• Regional alarm system
• Centralized alarm system
• Control center alarm system

6.3 System Functions:

• Should have automatic/manual trigger alarm devices for fire detection or manual assistance.

• Capable of controlling emergency activation of related systems and receiving feedback signals.