Bw111a Engineroom and Pumproom Fixed System

7/31/2019 Bw111a Engineroom and Pumproom Fixed System

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FIRE EXTINGUISHING

111A ENGINE AND PUMPROOM FIXED SYSTEM Issued by Paul Jones

Date 30.08.06 Approved by Trevor Smith

Page 1 of 6 APPLICABILITY ALL SHIPS

HIGH EXPANSION FOAM SYSTEM FOR THE ENGINE ROOM AND PUMP ROOM

MODEL: KASHIWA COMPANY LIMITED

High expansion Foam System makes full use of its extinguishing ability and has following effects:

a) Isolating Effect: the system will generate a large quantity of foam, isolate the area on fire fromother areas to prevent fire from expanding and extinguish in short time.

b) Cooling Effect: Water included in generated foam liquid can cool the heat in the area on fire anddecrease the atmospheric temperature for better extinguishment.

This system consists of following parts:

a) Foam GENERATOR:This consists of a spraynozzle, body andgenerating net. Whenthe system is runningseawater and foam mixgoes to the generatorand is sprayed towardthe net. Air is drawn infrom the generator inlet

and foam is produced atexpansion ratio of 1:600.

F

b) MIXING UNIT: The foam liquid ismixed with the seawater in aneductor. The foam liquid is drawnthrough a Diaphragm Control valveplaced in the piping of the foamliquid. This valve is used to obtain aconstant flow and mixing ratio.

FOAM GENERATOR IN PUMPROOM


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c) CONTROL PANEL: This panel controlsthe remote operation of the system fromFire Control Station. Note: There isanother same panel located in HighExpansion Foam Room for starting thesystem, in case it fails to operate from FireControl Station.

AUTOMATIC OPERATION FOR AN ENGINE ROOM FIRE

a) When fire is detected in EngineRoom break acrylic plate and pressthe SYSTEM STANDBY button onthe control panel at the ENGINEROOM side. The emergency stopsystem will be operated with thesounding of alarm in the EngineRoom.

b) Start the Emergency Fire Pump

from the start switch on the ControlPanel.

c) Press the FOAM DISCHARGE button on the control panel. As soonas seawater pressure rises above5Kg/cm2, the Foam Liquid pump

starts, the seawater valve AV1 and foam liquid suction valve AV2 are opened. As soon as foamliquid pressure rises above 5Kg/cm2, the discharge valve is opened and foam is discharged

through the foam generators.

STARTING BUTTONS OF HIGH EXP FOAM SYSTEMFOR ENGINE ROOM LOCATED ON THE CONTROLPANEL

STANDBY BUTTON

FOAM DISCHARGE

BUTTON


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AUTOMATIC OPERATION FOR A PUMPROOM FIRE

a) When fire is detected in Pump Roombreak the plastic cover and press the

SYSTEM STANDBY button on thecontrol panel at the PUMP ROOM side.The emergency stop system will beoperated with the sounding of alarm inthe Pump Room.

b) Start the Emergency Fire Pump from thestart switch on the Control Panel.

c) Press the FOAM DISCHARGE buttonon the control panel. As soon asseawater pressure rises above5Kg/cm2, the Foam Liquid Pump starts,

the seawater valve AV1 and foam liquidsuction valve AV2 are opened. As soon

as foam liquid pressure rises above 5Kg/cm2, the discharge valve is opened and foam isdischarged through the foam generators.

STARTING BUTTONS OF HIGH EXP FOAM SYSTEMFOR PUMP ROOM LOCATED ON THE CONTROLPANEL

STANDBY

FOAM DISCHARGE

BUTTON


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VIEW OF HIGH EXPANSION FOAM ROOM IN POOP DECK (PORT SIDE)

MANUAL OPERATION OF THE HIGH EXPANSION FOAM SYSTEM FROM FOAM ROOM

Discharge To The Engine Room:

a) Start the emergency fire pump.

b) When the discharge pressure is 5 kg/cm manually open AV1 and AV2.

c) Start the foam pump.

d) When the pressure on the foam discharge line is 5 kg/cm manually open AV3, AV4, AV5 andAV6.

e) Foam will now be discharged to the engine room.

Discharge To The Pump Room:

a) Start the emergency fire pump.

b) When the discharge pressure is 5 kg/cm manually open AV1 and AV2.

c) Start the foam pump.

d) When the pressure on the foam discharge line is 5 kg/cm manually open AV 7 and AV 8.

e) Foam will now be discharged to the pump room.


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OWN ABOVE ARE AUTOMATIC VALVES -AV3,4, AV5, AV6, AV7 AND AV8 IN THE HIGHPANSIONFOAM ROOM

CLOSE-UP VIEW OF ANAUTOMATIC VALVE

To Open Manually: Press the blue knob ontop and turn in anticlockwise direction.


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HIGH EXPANSION FOAM PUMP

SCHEMATIC DIAGRAM OF THE HIGH EXPANSION FOAM SYSTEM

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Bw111a Engineroom and Pumproom Fixed System