Marioff HI-FOG MAU Systems Marioff HI-FOG Training 4 August 2008 Amit Lior.
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Transcript of Marioff HI-FOG MAU Systems Marioff HI-FOG Training 4 August 2008 Amit Lior.
Marioff HI-FOG MAU Systems
Marioff HI-FOG Training
4 August 2008
Amit Lior
What is MAU?
Machinery-space Accumulator Unit (MAU) is the smallest Marioff HI-FOG system, developed to protect enclosures containing machinery equipment against fire.
MAU is small also compared to other FM approved accumulator units
Marioff HI-FOG MAU system is of a deluge type, releasing through open spray-heads when activated.
MAU unit is actuated either manually or automatically.
MAU is a self contained unit, requiring no supply of electric power or water for operation
Marioff HI-FOG MAU was tested for both fire-righting ability and for component qualities to the satisfaction of FM (USA), VdS (Germany), TFRI (China) and VNIIPO (Russia).
Applicable Standards
NFPA 750 Standard on Water Mist Fire Protection Systems
FM Approval Standard Class 5560
VdS draft Standard
IMO
Applications
Machinery Space:
oil pumps
oil tanks
fuel filters
transformer vaults
gear boxes
drive shafts
lubrication skids
diesel engine driven generators
other similar machinery using fuel and/or lubrication fluids with volatilities less than or equal to light diesel
Applications
Special Hazard Machinery Space:
internal combustion engines, other equipment using fuel and/or lubrication fluids with volatilities less than or equal to Heptane.
incidental use, or storage of limited quantities of flammable liquids of not more than two 55 gal (208 L) drums.
Applications
Turbine Enclosures
Protected Enclosures
General guidelines:
Maximum enclosure height 5 m
Maximum enclosure width and length 7,5 m
Maximum enclosure volume 260 m3
Also:
All ventilation openings and\or forced ventilation arrangement shall be capable of automatic closure or shut-down prior to system discharge.
max. 7,5 m
max. 7,5 m
max.
5 m
max. 260 m3
Structure & Components
Each MAU consists of:
One (1) compressed gas cylinder
One, Two or Three (1 , 2 or 3) water cylinders
Actuator Valve
Rack
Monitoring devices (pressure gauge etc’.)
Structure & Components
Standard MAU sizes: MAU-50 1 50 L water + 1 20 L compressed gas
MAU-100 2 50 L water + 1 50 L compressed gas
MAU-150 3 50 L water + 1 50 L compressed gas
Structure & Components
Gas cylinders
Preferably provided by local supplier.
Dimensions: Diameter: ca. 240 mm Maximum cylinder height: ca. 1600 mm Thread type: 24,32 1,814 SFS2292
(adaptor applicable for several options)
Each MAU has a single compressed gas cylinder: MAU-50: 20 Litre MAU-100 \ MAU-150: 50 Litre (minimum nominal capacity 48
Litre)
Compressed gas may be either air or nitrogen. Applicable pressure of
compressed gas should be one of the following: 150 bar @ 15C 200 bar (preferable) @ 15C 250 bar @ 15C
Structure & ComponentsWater cylinders
Nominal capacity of 50 litres.
Amount of water cylinders depend on the size of the accumulator unit.
Type of water cylinder depends on the compressed gas pressure and the place in the MAU assembly.
NOTE:
Water cylinders can not change from one type of MAU to the other.
Water cylinders can not be altered within each MAU.
MAU set for one pressure can not use gas cylinders with other pressure.
Structure & Components
Actuator Valves
Solenoid Valve
dP (delta P) Valve
Slave Valve
Structure & Components
Racks
Wall Mounted rack
Free Standing rack
Structure & Components
Monitoring Devices
Pressure Gauge- Gas Cylinder pressure
Pressure Gauge- Water Cylinders pressure
Structure & Components
Monitoring Devices
Pressure Switch- Gas Cylinder
Pressure Switch- Water Cylinders
Pressure Transducer
Time
Press
ure
ZZ
ZZ
Time
Press
ure
ZZ
ZZ
Structure & Components
Monitoring Devices
Water Level- visual indicator
Water Level- electric switch
Structure & Components
Additional Devices
Shutoff Valve
Filling adaptor
Protection caps
Protective cabinet
Time
Press
ure
Time
Press
ure
Operation
Single Accumulator
Standby
Time
Press
ure
Time
Press
ure
Operation
Single Accumulator
Standby
Opening the Actuation Valve
Operation
Single Accumulator
Standby
Opening the Actuation Valve
Discharge
Time
Press
ure
Time
Press
ure
Time
Press
ure
Time
Press
ure
Time
Press
ure
Time
Press
ure
Operation
Simultaneous Discharge Standby
Time
Press
ure
Time
Press
ure
Time
Press
ure
Time
Press
ure
Operation
Simultaneous Discharge Standby
Opening the Actuation Valve
Operation
Simultaneous Discharge Standby
Opening the Actuation Valve
Discharge
Time
Press
ure
Time
Press
ure
Operation
Extended Discharge Standby
Time
Press
ure
Operation
Extended Discharge Standby
Opening the Actuation Valve
Time
Press
ure
Operation
Extended Discharge Standby
Opening the Actuation Valve
Discharge
Time
Press
ure
Operation
Extended Discharge Standby
Opening the Actuation Valve
Discharge
Time
Press
ure
Time
Press
ure
Operation
Extended Discharge Standby
Opening the Actuation Valve
Discharge
Time
Press
ure
Time
Press
ure
Spray-Heads
4S 1MC 8MB 1100
Spray-heads are installed in one of the following orientations:
At ceiling level, discharging downward.
Wall mounted, discharging horizontally.
Spray-Heads
Amount of Spray-Heads:
65 m3 : one spray-head
130 m3 : two spray-heads
260 m3 : four spray-heads
Note: These numbers are the minimum, and more spray-head may be required if e.g.:
in order to keep max. spacing limits between spray-heads in a long room
obstruction prevents the construction of economic and uniform grid
the amount of fire risks justifies more spray-heads for proper coverage
For 10 minutes discharge:
MAU-50 : 1 spray-head
MAU-100 : 2 spray-heads
MAU-150 : 4 spray-heads
Distribution Network
Network for the release of one or two spray-headsNetwork for the release of one or two spray-heads:
O/D 12 mm ( 1,2 mm wall thickness)
Network for the release of three or more spray-heads:
O/D 16 mm ( 1,5 mm wall thickness) from the accumulator unit to the first T-piece.
O/D 12 mm ( 1,2 mm wall thickness) from the first T-piece thereafter.
Maximum length of piping used for the construction of the network:
20 m of O/D 12 mm pipes.
10 m of O/D 16 mm pipes.
Distribution Network
single spray-head, typically installed at the centre of the ceiling
two spray-heads, installed either at ceiling level or wall mounted
four spray-heads, installed either at ceiling level or discharging horizontally
System Design
1) Application & Requirements
2) Enclosure
3) Spray-Heads location
4) Accumulator Unit & Piping Network
System Design
Sample RFQ No. 1
Application: fuel storage
Dimensions: 6 m (L) 4 m (W) 3 m (H)
Fire hazard: five fuel tanks, 350 litre of Diesel fuel each
Approval authority: N.A.
Protection time: 30 minutes
System Design
Sample RFQ No. 2
Application: generators room
Dimensions: 10 m (L) 4 m (W) 3 m (H)
Fire hazard: two diesel generators
Approval authority: N.A.
Protection time: 20 minutes
System Design
Sample RFQ No. 3
Application: steam turbine
Dimensions: 7,5 m (L) 7,5 m (W) 5 m (H)
Fire hazard: steam turbine
Approval authority: N.A.
Protection time: 15 minutes
281 m3 281 m3
reminder: Spray-Heads
Amount of Spray-Heads:
65 m3 : one spray-head
130 m3 : two spray-heads
260 m3 : four spray-heads
Note: These numbers are the minimum
System Design
Sample Spray-Heads location No. 1
Application: elevator motors room
Dimensions: 5 m (L) 4 m (W) 3,5 m (H)
Fire hazard: electric motors
Approval authority: N.A.
Protection time: 20 minutes
volume = 70 m3 : two spray-heads volume = 70 m3 : two spray-heads
location : ceiling, uniform grid location : ceiling, uniform grid
2,5 m
2,5
m
1,25 m1,25 m
2,5
m
System Design
Sample Spray-Heads location No. 2
Application: generator room
Dimensions: 7 m (L) 6 m (W) 5 m (H)
Fire hazard: generator, 200 litre fuel tank
Approval authority: N.A.
Protection time: 30 minutes
volume = 210 m3 : four spray-heads volume = 210 m3 : four spray-heads
location : ceiling, uniform grid location : ceiling, uniform grid
1,75 m
3,0
m1,5
m
3,5 m1,75 m
3,0
m1,5
m
3,5 m
System Design
Sample Spray-Heads location No. 3
Application: turbine enclosure
Dimensions: 7 m (L) 6 m (W) 4 m (H)
Fire hazard: gas turbine
Approval authority: N.A.
Protection time: 30 minutes
volume = 168 m3 : four spray-heads volume = 168 m3 : four spray-heads
location : wall mounted location : wall mounted
reminder: Spray-Heads
For 10 minutes discharge:
MAU-50 : 1 spray-head
MAU-100 : 2 spray-heads
MAU-150 : 4 spray-heads
System Design
Sample Accumulator Unit & Piping Network No. 1
Application: elevator motors room
Dimensions: 5 m (L) 4 m (W) 3,5 m (H)
Fire hazard: electric motors
Approval authority: N.A.
Protection time: 20 minutes
two spray-heads = MAU-100 two spray-heads = MAU-100 20 minutes = two accumulator units20 minutes = two accumulator units
Welcome addition: accumulator unit(s) for second dischargeWelcome addition: accumulator unit(s) for second discharge
System Design
Sample Accumulator Unit & Piping Network No. 2 Application: generator room
Dimensions: 7 m (L) 6 m (W) 5 m (H)
Fire hazard: generator, 200 litre fuel tank
Approval authority: N.A.
Protection time: 30 minutes
Welcome addition: accumulator unit(s) for second dischargeWelcome addition: accumulator unit(s) for second discharge
30 minutes = three accumulator units30 minutes = three accumulator units
four spray-heads = MAU-150 four spray-heads = MAU-150
Restrictions
Site Specific:
Hazardous Areas
Temperature Range
Construction Materials
Enclosure:
Shut-down time
Forced ventilation
Don’t Forget
Other system:
Detection System
Alarm
Gas supply
Additional:
Enclosure
Warenty and service
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