Water Mist Fire Suppression System For Generator Room

Hangzhou PRI-SAFETY Fire Technology Co., Ltd. is known as one of the most professional manufacturers and suppliers of various safety products in China. If the water mist fire suppression system for generator room meets your requirement, welcome to buy quality equipment made in China here from our factory. Our factory will offer you one stop service and one year warranty.

 

Water Mist Fire Suppression System for Generator Room

 

 

A Water Mist Fire Suppression System for Generator Room is an advanced fire suppression technology designed to extinguish fires efficiently using fine water droplets generated under high pressure.

 

The small water droplets allow the water mist to control, suppress or extinguish fires by:

1. Cooling both the flame and surrounding gases by evaporation---Absorb Heat&Cooling

 

2. Displacing oxygen by evaporation---Isolate Oxygen

 

3. Attenuating radiant heat by the small droplets themselves---Isolate Heat

 

* Fire Detection: Sensors trigger the system upon detecting fire.

 

* Pump Activation: The pump pressurizes water, pushing it through nozzles.

 

* Mist Generation: Nozzles atomize water into a fine mist, creating a cooling effect through evaporation and displacing oxygen with steam.

The working principles of a pump-pressurized high-pressure water mist fire system revolve around atomizing water into ultra-fine droplets and leveraging their unique properties to suppress fires through rapid cooling, oxygen displacement, and heat radiation blocking.

 

Here's a step-by-step breakdown of how it operates:

1. Activation & Detection * Fire Detection: Sensors (smoke, heat, or flame detectors) identify a fire and trigger the system. * Control Panel Activation: The control unit activates the high-pressure pump and opens valves to direct water flow to the affected zone.   2. High-Pressure Water Generation * Pump Pressurization: A dedicated high-pressure pump (typically 70-200 bar or 1,000-3,000 psi) pressurizes water from a storage tank or mains supply. * Stable Pressure Maintenance: The pump ensures consistent pressure even as water is discharged, critical for effective mist generation.   3. Atomization at Nozzles * Nozzle Design: Specialized nozzles use high-pressure water flow to shear the water into micron-sized droplets (10-200 microns in diameter). * Mist Formation: The tiny droplets create a dense fog-like mist, vastly increasing the water's surface area compared to traditional sprinklers.

4. Fire Suppression Mechanisms The fine mist achieves fire suppression through three key physical mechanisms: a) Rapid Cooling (Heat Absorption) * Evaporation: The large surface area of the droplets allows instant evaporation, absorbing heat energy from the fire. * This cools the flames and surrounding gases below the fire's ignition temperature.   b) Oxygen Displacement * Steam Expansion: Evaporated water turns to steam, expanding up to 1,700 times in volume. * This dilutes oxygen levels in the fire zone.   c) Radiant Heat Blocking * Mist Curtain: The dense mist scatters and absorbs radiant heat, shielding unburned fuel and adjacent areas from ignition.   5. Post-Suppression Benefits * Minimal Water Damage: Limited water volume (often < 1 liter/min per nozzle) reduces collateral damage to assets. * Re-ignition Prevention: The cooling effect and residual mist inhibit re-flash of flammable materials.

 

Specifications for Single High Pressure Water Mist Pump, 112L/min, 14Mpa, 30kw

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Code No.	Working Pressure	Flow(L/Min)	Pump Speed(r/Min)	Dimensions(mm)	Note
WM/PRI-112/14	14Mpa	112	1470	2000x1200x2000	1 Work 1 Reserve
WM/PRI-224/14	14Mpa	224	1470	2650x1200x2000	2 Work 1 Reserve
WM/PRI-336/14	14Mpa	336	1470	2650x1200x2000	3 Work 1 Reserve
WM/PRI-448/14	14Mpa	448	1470	3100x1200x2000	4 Work 1 Reserve
WM/PRI-560/14	14Mpa	560	1470	3100x1200x2000	5 Work 1 Reserve
WM/PRI-672/14	14Mpa	672	1470	3550x1200x2000	6 Work 1 Reserve
WM/PRI-784/14	14Mpa	784	1470	3550x1200x2000	7 Work 1 Reserve

Specifications for Single High Pressure Water Mist Pump, 134L/min, 16Mpa, 45kw

Code No.	Working Pressure	Flow(L/Min)	Pump Speed(r/Min)	Dimensions(mm)	Note
WM/PRI-134/16	16Mpa	134	1470	2000x1200x2000	1 Work 1 Reserve
WM/PRI-268/16	16Mpa	268	1470	2650x1200x2000	2 Work 1 Reserve
WM/PRI-402/16	16Mpa	402	1470	2650x1200x2000	3 Work 1 Reserve
WM/PRI-536/16	16Mpa	536	1470	3100x1200x2000	4 Work 1 Reserve
WM/PRI-670/16	16Mpa	670	1470z	3100x1200x2000	5 Work 1 Reserve
WM/PRI-804/16	16Mpa	804	1470	3550x1200x2000	6 Work 1 Reserve
WM/PRI-938/16	16Mpa	938	1470	3550x1200x2000	7 Work 1 Reserve

 

Specifications for Single High Pressure Water Mist Pump, 168L/min, 13Mpa, 45kw

Code No.	Working Pressure	Flow(L/Min)	Pump Speed(r/Min)	Dimensions(mm)	Note
WM/PRI-168/13	13Mpa	168	1470	2000x1200x2000	1 Work 1 Reserve
WM/PRI-336/13	13Mpa	336	1470	2650x1200x2000	1 Work 1 Reserve
WM/PRI-504/13	13Mpa	504	1470	2650x1200x2000	1 Work 1 Reserve
WM/PRI-672/13	13Mpa	672	1470	3100x1200x2000	1 Work 1 Reserve
WM/PRI-840/13	13Mpa	840	1470	3100x1200x2000	1 Work 1 Reserve
WM/PRI-1008/13	13Mpa	1008	1470	3550x1200x2000	1 Work 1 Reserve
WM/PRI-1176/13	13Mpa	1176	1470	3550x1200x2000	1 Work 1 Reserve

 

Technical Parameters for Water Mist Nozzles:

 

Closed high pressure water mist nozzle:   The closed water mist nozzle is made of austenitic stainless steel and consists of a shell, a nozzle, a temperature-sensitive glass ball, etc. Its core component is a plurality of centrifugal nozzles installed on the conical surface of the shell. The atomization mechanism is to utilize the rotating liquid produced by the swirling parts in the nozzle to accelerate and eject the hollow diffusion cone-shaped liquid film through the outlet channel, and use the speed difference between the liquid and the outside air to break up and atomize

 

Technical Parameters for Closed Type Water Mist Nozzle

Code Number	Flow Rate(K)	Working Pressure(Mpa)	WorkingFlow(L/Min)
PRI/WM-N/T0.3/10-57ºC φ2	0.3	10.0-14.0	3.0-3.5
PRI/WM-N/T0.5/10-57ºC φ2	0.5	10.0-14.0	5.0-5.9
PRI/WM-N/T0.7/10-57ºC φ2	0.7	10.0-14.0	7.0-8.3
PRI/WM-N/T0.9/10-57ºC φ2	0.9	10.0-14.0	9.0-10.6
PRI/WM-N/T1.0/10-57ºC φ2	1.0	10.0-14.0	10.0-11.8
PRI/WM-N/T1.2/10-57ºC φ2	1.2	10.0-14.0	12.0-14.2
PRI/WM-N/T1.5/10-57ºC φ2	1.5	10.0-14.0	15.0-17.7
PRI/WM-N/T1.7/10-57ºC φ2	1.7	10.0-14.0	17.0-20.1
PRI/WM-N/T2.0/10-57ºC φ2	2.0	10.0-14.0	20.0-23.7
PRI/WM-N/T2.5/10-57ºC φ2	2.5	5.0-10.0	12.5-29.6
PRI/WM-N/T3.0/10-57ºC φ2	3.0	5.0-10.0	15.0-35.5
PRI/WM-N/T3.5/10-57ºC φ2	3.5	5.0-10.0	17.5-41.4
PRI/WM-N/T4.0/10-57ºC φ2	4.0	3.5-10.0	14.0-47.3
PRI/WM-N/T4.5/10-57ºC φ2	4.5	3.5-10.0	15.8-53.2
PRI/WM-N/T5.0/10-57ºC φ2	5.0	3.5-10.0	17.5-59.2
PRI/WM-N/T5.5/10-57ºC φ2	5.5	3.5-10.0	19.3-65.1

 

Open high pressure water mist nozzle: The open water mist nozzle is made of austenitic stainless steel and consists of a shell, a nozzle, etc. Its core component is a plurality of centrifugal nozzles installed on the conical surface of the shell. The atomization mechanism is to utilize the rotating liquid produced by the swirling parts in the nozzle to accelerate and eject the hollow diffusion cone-shaped liquid film through the outlet channel, and use the speed difference between the liquid and the outside air to break up and atomize.

 

Technical Parameters for Open Type Water Mist Nozzle

Code Number	Flow Rate(K)	Working Pressure(Mpa)	WorkingFlow(L/Min)
PRI/WM-N/T0.3/10	0.3	10.0-14.0	3.0-3.5
PRI/WM-N/T0.5/10	0.5	10.0-14.0	5.0-5.9
PRI/WM-N/T0.7/10	0.7	10.0-14.0	7.0-8.3
PRI/WM-N/T0.9/10	0.9	10.0-14.0	9.0-10.6
PRI/WM-N/T1.0/10	1.0	10.0-14.0	10.0-11.8
PRI/WM-N/T1.2/10	1.2	10.0-14.0	12.0-14.2
PRI/WM-N/T1.5/10	1.5	10.0-14.0	15.0-17.7
PRI/WM-N/T1.7/10	1.7	10.0-14.0	17.0-20.1
PRI/WM-N/T2.0/10	2.0	10.0-14.0	20.0-23.7
PRI/WM-N/T2.5/10	2.5	5.0-10.0	12.5-29.6
PRI/WM-N/T3.0/10	3.0	5.0-10.0	15.0-35.5
PRI/WM-N/T3.5/10	3.5	5.0-10.0	17.5-41.4
PRI/WM-N/T4.0/10	4.0	3.5-10.0	14.0-47.3
PRI/WM-N/T4.5/10	4.5	3.5-10.0	15.8-53.2
PRI/WM-N/T5.0/10	5.0	3.5-10.0	17.5-59.2
PRI/WM-N/T5.5/10	5.5	3.5-10.0	19.3-65.1

 

 

Key Components

1. High-Pressure Pump: Generates pressure typically between 70-200 bar (1,000-3,000 psi), crucial for atomizing water into a fine mist.

 

2. Specialized Nozzles: Disperse water into microscopic droplets (10-200 microns), enhancing surface area for rapid heat absorption.

 

3. Piping Network: Stainless steel or durable materials to withstand high pressure.

 

4. Water Supply: Tanks or connected sources, often requiring minimal water volume compared to traditional systems.

5. Control System: Integrates with fire detectors (heat/smoke) for automatic activation.

* Components: * Fire Detectors: Heat, smoke, or flame sensors for early detection.

* Control Panel: Activates pumps, valves, and alarms based on sensor input.

* Zone Valves: Solenoid valves to direct water to specific areas.

* Integration: Often interfaces with building management systems (BMS) for centralized monitoring.

 

 

1. Commercial Settings Data Centers: Protects sensitive electronics with minimal water damage. Hospitals: Ensures fire suppression without disrupting medical equipment or patient safety. Museums/Libraries: Safeguards artifacts and books by minimizing water exposure. Shopping Malls/Office Buildings: Efficiently controls fires while reducing collateral damage.

2. Industrial Environments Oil & Gas Facilities: Suppresses flammable liquid/gas fires without spreading hazards. Power Plants: Protects turbines and generators; effective in controlling high-heat fires. Manufacturing Plants: Ideal for machinery spaces with overheating risks. Pharmaceutical Clean Rooms: Prevents contamination while suppressing fires.

3. Transportation Marine Vessels: Uses seawater in confined spaces (engine rooms, cargo holds). Aircraft Hangars: Safeguards expensive equipment and complies with aviation safety standards. Tunnels: Functions effectively in ventilated or underground environments. Rail/Public Transit: Deployed in stations or trains for rapid response.

 

1. What is the difference between pump pressurized and cylinder pressurized water mist systems?

A pump pressurized system is generally suitable for larger or multi-zone projects and can provide continuous water supply according to the designed duration. A cylinder pressurized system is more compact and is normally considered for smaller protected spaces.

2. Can the system be used in a data center?

A water mist system can be engineered for data centers and server rooms. The final design must consider electrical equipment layout, room ventilation, raised floors, cable spaces, detection logic and applicable local requirements.

3. Does the system use open or closed nozzles?
Both options are available. Open nozzles discharge together within an activated zone. Closed nozzles operate individually when their heat-sensitive element reaches the rated activation temperature.

4. How is the pump capacity selected?
Pump capacity is determined by the number of operating nozzles, nozzle flow, design area, pressure loss, pipe routing and required system redundancy. Hydraulic calculation is required before final selection.

5. Can you provide a complete system instead of individual components?

Yes. A project package may include the pump unit or cylinder unit, water storage, filters, valves, piping components, nozzles, control equipment and engineering documents, depending on the agreed scope.

6. Can the system be customized?
Yes. Working pressure, flow rate, pump quantity, tank capacity, nozzle model, zone arrangement and control method can be configured according to the protected hazard and project drawings.

7. What documents can be supplied?
Depending on the project scope, available documents may include technical datasheets, system drawings, nozzle layouts, hydraulic calculations, bills of materials, installation instructions and maintenance manuals.