This is a growing system for fire protection, but still is misunderstood by engineers and installers.A fitter friend of mined installed 2 large systems for Marioff and they could not answer questions regarding the proper installation. Too many conflicting answers. This is a whole new ballgame for fitters...different than anything before it. The AHJ's are completely out their league on this technology.
@paul9511 The first alarm that sounds is the Sprinkler Alarm. That alarms occupants that the sprinkler system has been activated, or there is a opening in a valve head. The second alarm is the Fire Alarm.
How did the demonstrator actuate the system? The wailing siren certainly adds yet another sense of urgency to the entire scenario. What type of siren is that?
@KJ4VGT heat gun... fire extinguishers in commercial operations are often triggered by heat sensors, not "smoke detectors" since other particulate matter in the air can set them off.
The water mist system is very effective because the water particles are so small and can steam out instantaneously and doing so absorbe the heat and suppress the oxygen supply to the fire.
I wonder if they can produce a foam variant of this innovation! Foam@150BAR :D
Yep. The logic behind using a single flame sensor to trigger multiple sprinkler heads in a deluge system is that the system is installed to protect areas of high fire hazard, where it is feasible that a fire could spread over a wide area in a very short time space. Normal sprinklers could not respond quickly enough for effective control. The description states that this is a solvents facility, where the risk of a large incipient fire is obvious.
Yeah a system like this one has a flame detector. So that at the first sign of a fire the system will go off. They also have heat detectors, smokes and maual pull stations like any other system.
Normally fire sprinklers have individually activated heads and are charged with pressure at all times. But this system you could call a suppression system. It has open nozzles as opposed to sprinkler heads, and a control valve "floods" or "deluges" the entire protected area all at once.
depends on a wet or dry system, most "dry" systems all go off at once either by alarm or by fuse link(heat detection) device where as "wet" are "head" activated, meaning the sprinkler head itself is a heat sensor and goes off when it get hot enough as a single head
no, its a dramatic falsely portrayed in Hollywood, convential sprinklers need heat to boil a liquid within the sprinkler when that happens a small glass vile breaks and a rubber stopper is released, then the flow of water begins. Only the sprinkler in the area of the fire will activivate. :D
I think the device used to trigger the system may in fact be an inferred light unit. This device will simulate a flash fire. The sensors react to visible wave lengths and trigger the system. Its very common in Aircraft hangars. Can someone confirm that device.
They use that set up in a lot of paper recycling plants as well,
If its the same as Im thinking, hes setting it off using a heat source simulator instrument aimed at the heat detector, and the open sprinkler heads are normally fed from an electronically controlled solenoid on a deluge system,
A Similar set up to an MJ controlled emulsifier system, but more technical.
This is a growing system for fire protection, but still is misunderstood by engineers and installers.A fitter friend of mined installed 2 large systems for Marioff and they could not answer questions regarding the proper installation. Too many conflicting answers. This is a whole new ballgame for fitters...different than anything before it. The AHJ's are completely out their league on this technology.
RallyFireProtection 11 months ago
why are there two different alarms ?
paul9511 1 year ago
@paul9511 The first alarm that sounds is the Sprinkler Alarm. That alarms occupants that the sprinkler system has been activated, or there is a opening in a valve head. The second alarm is the Fire Alarm.
intelcore2duo43 7 months ago
These systems use nitrogen to pressurize the water. how much nitrogen is released in the protected area and does it pose a suffocation hazard?
bruceblazo 1 year ago
What are the advantages over ordinary sprinklers? there was much water on the floor after the test? there was damages? thanks!
paul9511 1 year ago
@paul9511, water mist is more effective in suppressing the fires.
tupsumato 1 year ago
1200 PSI?
dcool96 1 year ago
@dcool96 Oh no, much more than that. It is more around 1700-2000 PSI.And the mist heads haves verrrry small (special) holes, to create mist.
paul9511 1 year ago
How did the demonstrator actuate the system? The wailing siren certainly adds yet another sense of urgency to the entire scenario. What type of siren is that?
KJ4VGT 1 year ago
@KJ4VGT heat gun... fire extinguishers in commercial operations are often triggered by heat sensors, not "smoke detectors" since other particulate matter in the air can set them off.
ResolvingChaos 1 year ago
The water mist system is very effective because the water particles are so small and can steam out instantaneously and doing so absorbe the heat and suppress the oxygen supply to the fire.
I wonder if they can produce a foam variant of this innovation! Foam@150BAR :D
Dasm2000 2 years ago
I don't think a fire could survive for very long under that onslaught of water.
StigelRULES 2 years ago
Yep. The logic behind using a single flame sensor to trigger multiple sprinkler heads in a deluge system is that the system is installed to protect areas of high fire hazard, where it is feasible that a fire could spread over a wide area in a very short time space. Normal sprinklers could not respond quickly enough for effective control. The description states that this is a solvents facility, where the risk of a large incipient fire is obvious.
wheelsofwonder 2 years ago
Yeah a system like this one has a flame detector. So that at the first sign of a fire the system will go off. They also have heat detectors, smokes and maual pull stations like any other system.
hockeyfund123 2 years ago
Normally fire sprinklers have individually activated heads and are charged with pressure at all times. But this system you could call a suppression system. It has open nozzles as opposed to sprinkler heads, and a control valve "floods" or "deluges" the entire protected area all at once.
zeebov9 2 years ago
Isen't Marioff a finnish company?
MarkusRasmussen 2 years ago
mmmmmmmmmmmmmm sin secuencia de descarga ni aborto del sistema
8791788 2 years ago
Hmmmm...most of time times simply setting off an alarm doesnt activate sprinklers...no?
StigelRULES 3 years ago
depends on a wet or dry system, most "dry" systems all go off at once either by alarm or by fuse link(heat detection) device where as "wet" are "head" activated, meaning the sprinkler head itself is a heat sensor and goes off when it get hot enough as a single head
fireeater037 2 years ago
no, its a dramatic falsely portrayed in Hollywood, convential sprinklers need heat to boil a liquid within the sprinkler when that happens a small glass vile breaks and a rubber stopper is released, then the flow of water begins. Only the sprinkler in the area of the fire will activivate. :D
Aragon159 2 years ago
looks so hollywood :D
Aragon159 3 years ago
I think the device used to trigger the system may in fact be an inferred light unit. This device will simulate a flash fire. The sensors react to visible wave lengths and trigger the system. Its very common in Aircraft hangars. Can someone confirm that device.
themightyquinner123 3 years ago
Comment removed
themightyquinner123 3 years ago
What is it thats protected? Anyody that knows?
osten1972 3 years ago
it looks like a steel mill to me. Alot of industrial plants have these systems.
ExperimentalArmy 3 years ago
They use that set up in a lot of paper recycling plants as well,
If its the same as Im thinking, hes setting it off using a heat source simulator instrument aimed at the heat detector, and the open sprinkler heads are normally fed from an electronically controlled solenoid on a deluge system,
A Similar set up to an MJ controlled emulsifier system, but more technical.
Firefused 3 years ago
It is protecting commercial adhesive mixing machinery and product.
fm200bill 3 years ago
So I'm wondering why you would use water instead of some other chemical that would neutralize the fire and any chemical spill....
Unless water is base or acidic enough to take care of any problem they might have.
i8246i 2 years ago
@i8246i water is simply cheaper
SpectreJoe 1 year ago