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Marioff HI-FOG MAU Systems

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Presentation on theme: "Marioff HI-FOG MAU Systems"— Presentation transcript:

1 Marioff HI-FOG MAU Systems
Marioff HI-FOG Training 4 August 2008 Amit Lior

2 MAU is small also compared to other FM approved accumulator units
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).

3 Applicable Standards NFPA 750 Standard on Water Mist Fire Protection Systems FM Approval Standard Class 5560 VdS draft Standard IMO

4 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

5 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.

6 Applications Turbine Enclosures

7 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.

8 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’.)

9 Structure & Components
Standard MAU sizes: MAU-50 1  50 L water + 1  20 L compressed gas MAU  50 L water + 1  50 L compressed gas MAU  50 L water + 1  50 L compressed gas

10 Structure & Components
Gas cylinders Preferably provided by local supplier. Dimensions: Diameter: ca. 240 mm Maximum cylinder height: ca 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 15C 200 bar 15C 250 15C

11 Structure & Components
Water 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.

12 Structure & Components
Actuator Valves Solenoid Valve dP (delta P) Valve Slave Valve

13 Structure & Components
Racks Wall Mounted rack Free Standing rack

14 Structure & Components
Monitoring Devices Pressure Gauge- Gas Cylinder pressure Pressure Gauge- Water Cylinders pressure

15 Structure & Components
Monitoring Devices Pressure Switch- Gas Cylinder Pressure Switch- Water Cylinders Pressure Transducer

16 Structure & Components
Monitoring Devices Water Level- visual indicator Water Level- electric switch

17 Structure & Components
Additional Devices Shutoff Valve Filling adaptor Protection caps Protective cabinet

18 Operation Single Accumulator Standby

19 Operation Single Accumulator Standby Opening the Actuation Valve

20 Operation Single Accumulator Standby Opening the Actuation Valve
Discharge

21 Operation Simultaneous Discharge Standby

22 Operation Simultaneous Discharge Standby Opening the Actuation Valve

23 Operation Simultaneous Discharge Standby Opening the Actuation Valve

24 Operation Extended Discharge Standby

25 Operation Extended Discharge Standby Opening the Actuation Valve

26 Operation Extended Discharge Standby Opening the Actuation Valve

27 Operation Extended Discharge Standby Opening the Actuation Valve

28 Operation Extended Discharge Standby Opening the Actuation Valve

29 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.

30 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

31 Distribution Network Network 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.

32 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

33 System Design Application & Requirements Enclosure
Spray-Heads location Accumulator Unit & Piping Network

34 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

35 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

36 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

37 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

38 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 location : ceiling, uniform grid

39 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 location : ceiling, uniform grid

40 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 location : wall mounted

41 reminder: Spray-Heads
For 10 minutes discharge: MAU-50 : 1 spray-head MAU-100 : 2 spray-heads MAU-150 : 4 spray-heads

42 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 20 minutes = two accumulator units Welcome addition: accumulator unit(s) for second discharge

43 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 four spray-heads = MAU-150 30 minutes = three accumulator units Welcome addition: accumulator unit(s) for second discharge

44 Restrictions Site Specific: Hazardous Areas Temperature Range
Construction Materials Enclosure: Shut-down time Forced ventilation

45 Don’t Forget Other system: Detection System Alarm Gas supply
Additional: Enclosure Warenty and service

46 Thanks


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