Fire Protection System Presentation

8/22/2019 Fire Protection System Presentation

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HAND BOOK ONFIRE PROTECTION AND

PREVENTION SYSTEM IN PETRONET LNG LIMITED

DAHEJ



FIRE WATER PUMPS & FIREWATER

TANKS

Total water available for fire fighting is 18000 m3 available in twofire water tanks of 9000 m3 each.

The minimum amount of water available for fire fighting is 17000m3 which is sufficient to fight the worst case fire for up to fourhours.

Pump system comprise two jockey pumps of 125 m3 /hr rate, four

diesel driven pump of 1050 m3 /hour & two electric pumps of 1050m3 /hour capacity.



FIRE WATER NETWORK

The fire water network comprise the fire water hydrant line covering allareas.

Fire water double headed hydrant with landing valve are installed toprovide water at 7 kg/cm2 pressure at the outlet.

Fire hose box with two delivery hose, two branches are provided at eachhose box installed near each hydrant.

Fire escape hydrant are provide in admin building, electrical substation toprovide water for fire fighting.

Fire water hose reel are provided as a means of first aid fire fighting tocontrol small fire.

Fire water line is provided with isolation valve at the hydrant & at mainfire water line.

Fire water line is charged to a pressure of 14 kg/cm2.



FIRE PROTECTION FACILITIES AT JETTY HEAD

Two tower mounted remote controlled monitors are installed art the jettyhead on 15 m tower.

The discharge capacity of tower monitor is 360 m3/hr at 8 kg/cm2.

The spray type is either jet or fog with locking device with 360 degree.

Effective throw of water monitor is 80 m horizontally.

Tower monitor can be operated from the main panel in jetty control roomor from the slave panel on the jetty head lower deck.

Four double headed hydrants with hose box and accessories are alsoprovide at jetty head .

A foam trolley of 200 liters is located at jetty head.

Water spray /water curtain is also located at the jetty head.



FIRE WATER DELUGE SYSTEM

Medium velocity fixed water facility are installed which are automaticallyactivated on the detection of a fire by two separate sensors or by manual fromthe FGS PANEL in the MCR are installed in the following locations :

BOG COMPRESSOR SUCTION DRUM BOG COMPRESSORS RECONDENSERS HP LNG SEND OUT PUMPS

METRING PIPING FUEL GAS ELECTRIC &AMBIENT HEATER STV STRUCTURE SCV AREA LNG MANIFOL D (HJETTY AREA ) LNG drain drum Diesel l tank area

Electrical transformers DENSE WATER CURTAINS ARE ALSO PROVIDED FOR : Jetty face& personal access route HP LNG pumps shed BOG compressor shed TTLF



HIGH EXPANSION FOAMSYSTEM

High expansion foam system is installed fro LNG drain pits v-902 & v-903 system is automatically activated on detection of an LNGspill.

Foam system can be operated manually by local control panel or

the FGS panel.

A foam depth of 1.8 m can be achieved with in 1 minute with foamstorage for 1hour operation.

Foam system will stop after 3 minutes & need to be manuallyrestarted if required.



INERGEN -FIXED FLOODING SYSTEM

IN MAIN CONTROL ROOM Inergen system is installed in main control room at engineering

room, rack room & battery room and also in GTG PANEL ROOM. Inergen system consist of a mixture of gases that is Nitrogen- 50.5

%, Argon -40.5 % & CO2- 9% Inergen system is operated automatically by sensing of cross zone

fire detectors.

Prior alarm is sounded before actual activation as a warning of gas release & with warning to escape from the area immediately.

Actuation involves release of gas in the concerned area & subsequent fire extinguishment by the oxygen depletion potentialof the gas.

After fire extinguishment is achieved by the release of gas theaffected area is ventilated to facilitate the release of inergen gasfrom the spot.



NITROGEN -FIXED FLOODING SYSTEM

IN GTG & ELEC. SUB STATION Nitrogen system is installed in phase –II GTG PANEL ROOM, &

Electrical sub station PLC room. Nitrogen system consist of 100% Nitrogen gas in cylinder at 280

bar pressure. Nitrogen system is operated automatically by sensing of cross

zone fire detectors.

Prior alarm is sounded before actual activation as a warning of gas release & with warning to escape from the area immediately.

Actuation involves release of gas in the concerned area & subsequent fire extinguishment by the oxygen depletion potentialof the gas.

After fire extinguishment is achieved by the release of gas theaffected area is ventilated to facilitate the release of Nitrogen gasfrom the spot.



CO2-FIXED FLOODING SYSTEM AT GTG

CO2 fixed flooding system comprise release of carbon dioxide gasin the enclosed area of GTG which is on fire.

The fire is sensed by cross zone of fire detectors installed in GTGwhich gives indication to the master cylinder of CO2 fix floodingsystem for release of carbon dioxide in the fire affected area.

Carbon dioxide gas smothers the fire, that is cut off the oxygensupply by way of its oxygen depletion potential.

After the fire is extinguished the doors of the concerned GTG areopened to stimulate the escape of gas from the area.

System can also be operated manually by actuation of pushbutton.



FIRST AID FIRE FIGHTING

Portable fire extinguishers for the purpose of first aid fire fighting are installed and placed invarious location relevant to the hazard in thearea.

Dry chemical powder, Foam & CO2 type fireextinguishers are kept in plant location as ameans of first aid fire fighting.

Regular training on use of first aid fireextinguisher is imparted by fire departmentregularly for effective use portable extinguisherin case of fire.



FIRE FIGHTING FACILITY DETAILS

NAME OF SYSTEM TOTAL NUMBER

DOUBLE HYDRANT 137

WATER MONITOR 04

FIRE ESCAPE HYDRANT 05

FIELD HOSE REEL 08

MEDIUM VELOCITY WATER SPRAY 24

HIGH VELOCITY WATER SPRAY 08

WATER CURTAIN SPRINKLER 07

WATER JUMBO CURTAIN 01

FIXED FOAM SYSTEM 02

CO2 FLOODING SYSTEM 05

INERGEN SYSTEM 02

NITROGEN SYSTEM 02



FIRE FIGHTING FACILITY DETAILS

NAME OF SYSTEM TOTAL NUMBER

DCP (10 KG) EXTINGUISHERS 95

DCP (25 KG) EXTINGUSHER 03



DCP (150 KG) 04

CO2 (4.5 KG) EXTINGUISHERS 110



MECH FOAM (9 Ltrs) EXTINGUISHERS 11

MECH FOAM (50 Ltrs) EXTINGUISHERS 05

DELUGE VALVES 38

FIRE WATER TANKS (8500 M3 EACH TANK) 02

FIRE PUMPS (J-2,D-4,E-2)125 M3/Hr,1050 M3/Hr, 1050 M3/Hr 08

DCP CUM FOAM TENDER,DCP-1500 KGS, FOAM-1000 Ltrs, WATER-3000 Ltrs 01

DCP CUM FOAM TENDER,DCP-1400 KGS, FOAM-500 Ltrs, WATER-1000 Ltrs 01



DESCRIPTION OF FIRE, GAS & SPILL

DETECTION The fire, gas & spill detection facility is installed on the LNG

terminal identifies 14 areas for constant monitoring .These areasare :

Jetty head Trestle & unloading drain drum LNG TANK T101 & T102 LNG TANK T103 & T104 Recondenser LNG HP pumps BOG compressors Shell & Tube vaporizers Process drain drum Submerged combustion vaporizers Fuel gas heater Metering station Pig launcher & metering station TTLF



DESCRIPTION OF FIRE ,GAS & SPILL

DETECTION The area identification is displayed on the mimic panel in the main

control room. Depending upon the risk in above mentioned area,various detection devices are located for detecting gas leak, fire,LNG spill. For gas leak detection alarms at 20%& 60% LEL alarmcomes in the MCR. The gas detector are catalytic & will lead toemergency shutdown via two gas detectors sensing 60% LELvoting system. The fire detectors are of UV/IR type and any two of which in a given plant area will automatically activate that area’s fire water deluge system.

Buildings are protected by smoke detectors that are installed in allrooms, cable trenches and sub floor areas. If fire is detected in abuilding then the common alarm is activated on the fire alarmsystem panel as well as in the FGS system in control room andfire station.

Manual call points are installed in the plant areas & building tocommunicate fire by breaking of the glass.



FIRE ALARM & DETECTION DETAILS

DETAILS OF DETECTORS TOTAL NUMBER

FIRE ALARM PANEL 14

MCP/SPB 79

PAGING SYSTEM 44

GAS DETECTOR (GSD) 167

FLAME DETECTOR (FSD) 111

SPILL DETECTOR (TSD) 60

IONIZATION SMOKE DETECTOR (ISD) 110

OPTICAL SMOKE DETECTOR (OSD) 263

HEAT DETECTOR (HD) 64



MAINTENANCE OF F.F EQUIPMENTS

All fire fighting equipments are being maintained as per NFPA

standards.

Inspection, Checking and Maintenance formats has been developedfor all fire equipments.

SOPs are also in place for checking, inspection and maintenance.

Every Fire protection system/F F equipment get inspected once inmonth.

Operational test of each fire protection system is being carried outat least once in a year.



MAINTENANCE OF F.F EQUIPMENTS

Operational test of fire tenders and all movable fire equipments are

being carried out monthly.

Fire extinguishers are being inspected monthly, maintainedquarterly and operated annually.

MCP/SPB are being inspected monthly.

Gas detectors, spill detectors and fire/flame detectors are testedFour monthly.

Smoke detectors and heat detectors are tested annually.

Paging system (Communication) are tested annually.



MUTUAL AID SUPPORT

Petronet LNG Limited have mutual aid support withReliance, BIRLA COPPER, ONGC C2C3, GCPTCL and GACL.

Nearby industries have fire tender with full fledged fire

fighting team.

Familarisation programme has been conducted for nearbyindustries fire /safety professionals to explain aboutpossible fire/scenarios in the plant.



Dry chemical powder fire extinguisher



Mechanical foam type fire extinguisher



Carbon dioxide fire extinguisher



Fire Water Tanks

Monitor



Hydrant

Water spray



Foam Flooding System



CO2 Flooding System





Mercedeze Benz



Swaraj Mazda



Portable water cum foam monitor

P t bl F T ll

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Fire Protection System Presentation

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