Brief Introduction of Products
Foam spray fire extinguishing device is a new type of fire extinguishing device, which uses high-performance foam liquid as extinguishing agent, and sprinkles it on fire extinguishing object under certain pressure through special spray nozzle. Foam spray fire extinguishing device is applicable toAClass,BClass,CClass I and electrical fire. The device gathers the advantages of foam fire extinguishing and water mist fire extinguishing. With the help of the functions of water mist and foam cooling, asphyxiation, emulsification and isolation, it achieves the functions of rapid fire extinguishing and flame retardant. The utility model is a fire extinguishing device with high efficiency, no special power supply and pump set for the pool, and simple installation, operation and maintenance.
_System Composition
The device consists of a liquid storage tank.(including synthetic foam extinguishing agent), nitrogen cylinder group (including vessel valve), pressure reducing valve, check valve, safety.Valve, water mist nozzle, pressure gauge, collector, connecting pipe, etc.
_Place of application
Oil-immersed power transformer、Oil-fired boiler room 、Fuel Generator Room、Small oil depots 、Small Oil Tank、Small garage 、Mini garage 、Ship Engine Room and EngineAnd so on.
_Technical parameters
1、 Product parameters
| Specification type | PWZ0.7/□□PKX | ||||||||||
| Liquid storage tank volume / M & sup3; | 3.5 | 5 | 7 | 8 | 9 | 10 | 12 | 14 | 15 | 18 | 20 |
| Fire extinguishing agent (premixed) | Synthetic foam liquid (S) or water film forming foam liquid (AFFF/AR) | ||||||||||
| System working pressure | ≤0.7MPa | ||||||||||
| Continuous supply time | ≥15min | ||||||||||
| Working pressure of sprinkler | ≥0.35MPa | ||||||||||
| Volume of Power Bottle Group | 40L/70L. Depending on the size of the storage tank, the number of power bottles is allocated. | ||||||||||
| Filling Pressure of Power Bottle Group | 13.5MPa | ||||||||||
| Starter bottle volume | 4L | ||||||||||
| Starting Bottle Filling Pressure | 6MPa | ||||||||||
| Gas filling in start-up bottle and power bottle | nitrogen | ||||||||||
| Start-up power supply | DC24V，1.5A | ||||||||||
| Startup mode | Automatic, manual and mechanical emergency start-up | ||||||||||
| Use environment | 4℃～50℃ | ||||||||||
| Zone Control Valve | Electric ball valve, DN50-DN100, 1.6 MPa, DC24V, 5A | ||||||||||
| Pressure switch (mounted behind partition valve) | Action pressure ranges from 0.035 MPa to 0.05 MPa | ||||||||||
| Control panel | Main power 220V, 50Hz, equipped with standby power and can work continuously for 24 hours. It has the function of self-fault alarm after fire sound and light alarm. With manual automatic switch and start and stop buttons, start and stop buttons are always valid. The delay time from alarm to automatic startup device is adjustable from 0 to 30 seconds. | ||||||||||
2、Water mist nozzle parameters
| Specification type | Working Pressure/MPa | Flow coefficient K | Installation spacing/m | Installation height/m | Spray angle / ° | Connection mode |
| ZSTWB5 | ≥0.35 | 5 | 3m | 3.5m | 60 90 120 | External snail R1/2 |
| ZSTWB10 | 10 | |||||
| ZSTWB16 | 16 | |||||
| ZSTWB22 | 22 | External snail R3/4 | ||||
| ZSTWB27 | 27 | |||||
| ZSTWB34 | 34 |