Semi-fixed (portable) foam fire extinguishing equipment
Description:
A foam fire extinguishing system primarily consists of a
fire pump, a fire water source, a foam extinguishing agent storage
device, a foam proportioning device, a foam generating device, and
piping. The foam proportioning device mixes the foam extinguishing
agent and water in the correct proportion to form a foam mixture.
The foam generating device then forms air foam, which is then
applied to the burning object to extinguish the fire.
The primary fire extinguishing mechanism of a foam system is
to extinguish a fire through the covering, submerging, cooling, and
suffocating effects of the foam layer. | | High multiplier generator | Semi fixed foam fire extinguishing device | Vertical/horizontal foam tank |
Product details and specifications:
Working principle:
When the pressure water of the water supply pump enters the
proportional mixer from the inlet pipe and valve, most of the water
enters the main pipe and the proportional mixer throttling device.
According to the principle of fluid mechanics, a section of low
pressure zone is formed behind the throttling device, and a small
part of the water enters the inlet pipe and flows into the storage
tank, squeezing the diaphragm. Under the pressure of the pressure
water, the extinguishing agent in the bag enters the low pressure
zone of the proportional mixer through the outlet pipe and the
outlet valve, so that the water and extinguishing agent are
automatically mixed in proportion to form a foam mixture, which is
sent to the foam generator and the spraying equipment through the
pipeline for extinguishing.
In many practical engineering applications, the design
requires that electric ball valves should be installed on the water
inlet pipe and liquid outlet pipe of the foam tank, and the field
control cabinet should be equipped. The control principle is as
follows:
Principle of fire automatic control: When the on-site control
cabinet is set to automatic mode, when the fire signal arrives, the
inlet electric ball valve and outlet electric ball valve (220V) on
the storage tank will be automatically opened; When the fire signal
disappears, the inlet valve and outlet valve are automatically
closed. There is a working status indicator light on the control
cabinet (closed/open), and the valve feedback point on the control
cabinet is the active point (220V), If passive feedback contacts
are required, they should be specified in the procurement
requirements.
When manually controlling, the on-site control cabinet must
be set to manual mode, and the corresponding valve opening and
closing buttons on the control cabinet should sequentially
open/close the inlet electric ball valve and the outlet electric
ball valve. In case of power shortage in the on-site control
cabinet, the valve opening wrench equipped on the electric valve
can be used to manually open the electric valve | |
parameter Size | A | B | Diameter | D | H | Weight KG | | 1 ton | 1070 | 350 | 1000 | 1100 | 2300 | 380 | | 1.5 tons | 1150 | 350 | 1200 | 1100 | 2400 | 450 | | 2 tons | 1250 | 350 | 1300 | 1100 | 2500 | 500 | | 3 tons | 1450 | 350 | 1500 | 1260 | 2850 | 700 | | 4 tons | 1500 | 350 | 1600 | 1500 | 3040 | Not labeled |
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Working principle:
When the pressure water of the water supply pump enters the
proportional mixer from the inlet pipe and valve, most of the water
enters the main pipe and the proportional mixer throttling device.
According to the principle of fluid mechanics, a section of low
pressure zone is formed behind the throttling device, and a small
part of the water enters the inlet pipe and flows into the storage
tank, squeezing the diaphragm. Under the pressure of the pressure
water, the extinguishing agent in the bag enters the low pressure
zone of the proportional mixer through the outlet pipe and the
outlet valve, so that the water and extinguishing agent are
automatically mixed in proportion to form a foam mixture, which is
sent to the foam generator and the spraying equipment through the
pipeline for extinguishing. In many practical engineering applications, the design
requires that electric ball valves should be installed on the water
inlet pipe and liquid outlet pipe of the foam tank, and the field
control cabinet should be equipped. The control principle is as
follows: Principle of fire automatic control: When the on-site
control cabinet is set to automatic mode, when the fire signal
arrives, the inlet electric ball valve and outlet electric ball
valve (220V) on the storage tank will be automatically opened; When
the fire signal disappears, the inlet valve and outlet valve are
automatically closed. There is a working status indicator light on
the control cabinet (closed/open), and the valve feedback point on
the control cabinet is the active point (220V), If passive feedback
contacts are required, they should be specified in the procurement
requirements. When manually controlling, the on-site control cabinet must
be set to manual mode, and the corresponding valve opening and
closing buttons on the control cabinet should sequentially
open/close the inlet electric ball valve and the outlet electric
ball valve. In case of power shortage in the on-site control
cabinet, the valve opening wrench equipped on the electric valve
can be used to manually open the electric valve | |
Parameter Size | A | B | C | D | E | F | G | H | I | Diameter | Weight KG | | 1 ton | 1850 | 1100 | 460 | 275 | 350 | 150 | 800 | 1620 | 1000 | 1000 | 470 | | 1.5 tons | 1950 | 1100 | 460 | 325 | 350 | 150 | 1000 | 1900 | 1200 | 1200 | 560 | | 2 tons | 2350 | 1500 | 650 | 325 | 350 | 200 | 1000 | 1900 | 1200 | 1200 | 650 | | 3 tons | 2500 | 1500 | 650 | 400 | 350 | 200 | 1300 | 2250 | 1500 | 1500 | 750 | | 4 tons | 3000 | 2000 | 737.5 | 400 | 350 | 200 | 1300 | 2300 | 1500 | 1500 | 1060 | | 5 tons | 3150 | 2000 | 750 | 425 | 350 | 250 | 1300 | 2250 | 1500 | 1600 | 1150 | | 6 tons | 3650 | 2500 | 887.5 | 425 | 350 | 250 | 1300 | 2350 | 1500 | 1600 | 1250 | | 7.6 tons | 3750 | 2500 | 925 | 475 | 370 | 300 | 1600 | 2572 | 1800 | 1800 | 1850 | | 8 tons | 4000 | 2760 | 925 | 475 | 370 | 300 | 1600 | 2550 | 1800 | 1800 | 1900 | | 9 tons | 4250 | 3010 | 1040 | 475 | 360 | 300 | 1600 | 2550 | 1800 | 1800 | 2250 | | 10 tons | 4320 | 3030 | 1040 | 500 | 360 | 300 | 1600 | 2650 | 1800 | 1900 | 2500 |
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