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Transcript of 4 Special Fire Hazards and Prevention
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8/20/2019 4 Special Fire Hazards and Prevention
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1Reliance Fire Services
SPECIAL FIRE HAZARDSSPECIAL FIRE HAZARDS
FIRE TRAININGFIRE TRAINING
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POTENTIAL HAZARDSPOTENTIAL HAZARDS
Loading/unloading facilities.
Off-shore facilities.
Storage tanks.
Spheres & bullets.
r!ogenic storage.
"ipelines.
"rocess areas.
#arehouses.
$lectrical installations.
Office buildings/canteens.
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SPECIAL FIRE HAZARDSSPECIAL FIRE HAZARDS
L$'$
('$
O)LO'$R & SLO"O'$R
O*$ S+OR,$
+$,L S+OR,$0RO$ ,0L)
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Reliance Fire Services
BLEVEBLEVE
oiling Li3uid $4panding 'apour $4plosion
A Sudden Conversion of the Liquid into Gas,
Increases Pressure and Results in an
Explosion
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BLEVEBLEVE
Conditions:
Superheated Li3uid6 Stored above its or7al
oiling "oint.
+e7perature Should $4ceed its ritical +e7p.
Li3uid 'apori8es Rapidl! Resulting in $4cessive
"ressure uilt-up & $4plodes.
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EFFECTS OF BLEVEEFFECTS OF BLEVE
last :ave; due to ph!sical e4plosion and
flash evaporation of li3uid.
Frag7ents; ruptured parts 7a! travel to a
distance of one kilo7eter.
Fire ball; escaped rising gases ignites and
te7perature 7a! be around 11
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BLEVE OF LPG SPHEREBLEVE OF LPG SPHERE
Out flo: of 3uantit! ; 9
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CONSEQUENCES OF BLEVECONSEQUENCES OF BLEVE
0a7age distance for heat radiation
1
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CONSEQUENCES OF BLEVECONSEQUENCES OF BLEVE
0a7age distance for pressure :ave
eav! ; 2
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1
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UVCEUVCE
onditions;
Release of fla77able 7aterial
Sufficient 7i4ing of the fla77able 7aterialin air to allo: rapid fla7e front propagation
)gnition
('$ occur in the open air6 but have so7edegree of confine7ent6 :hich allo:s thefla7e front to accelerate to achievee4plosion para7eters.
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UVCEUVCE
!clo-he4aneAflash pt. -1=
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A Physical Phenomenon:
Occurs in rude Oil & Residual Oil +anks..
oiling "oint of "roduct 1
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0o:n:ard advance rate of heat-:ave 5
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Heat # Wae
Wate$ Laye$
BOILOVERBOILOVER
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Conditions For Boilover to ccur
Full Surface +ank Fire
#ide Range of oiling "oints
Oil $7ulsification/otto7 #ater
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Prevention of Boilover!
Fire $4tinguish7ent Should be Organised at
least #ithin 2 rs .
+r! to Ci4 the product b! using Ci4ers.
heck "osition of eat #aves :ith #ater Spra!
Risk "ersist $ven ,fter Fire is $4tinguished
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"roducts For7ing ot one
"roducts #ith igh #ater ontents or
on- unifor7 La!ering eneration of Stea7 ubbles- Floating on
Li3uid Surface
Frothing 0ue to Foa7/ Fire #ater
SLOPOVERSLOPOVER
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"heno7enon occurring in eav! Oils.
Free oard Space of the +ank
Guiet-Like oiling/ Slop $4plosion
SLOPOVERSLOPOVER
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2
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TEAL STORAGETEAL STORAGE
o-catal!st of "" plant
"!rophoric in nature
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HYDROGEN HANDLINGHYDROGEN HANDLING
)ncreased (se of !drogen in "rocesses
urning enerates +re7endous eat
urns in $4plosive Canner
)nvisible Fla7es
'er! Lo: )nversion +e7peratureA-><<
B
