ProCon Low Pressure Water Mist System "kablo-yanginlari" için
The State of the art in Fire Fighting 2013 V1
1. State of the art in Firefighting
on Oil Terminals
Carsten Zilmer Holbæk, Terminal Manager
Inter Terminals SGOT Aps
Mobile: +45 24 66 34 84
Carsten.Holbaek@interterminals.com
5. 5
Upgrade of old firefighting equipment
1. The project
1. All Tanks to be covered: 20.000 K€
2. Only 11 Tanks to be covered 7.000 K€
2. Building the Foam system
3. Testing the system
• Rim-seal fire: Fully Automated
Start fire fighting by PC
• Tankfarm fire: Semi Automated
Start fire fighting
• Set up Foam guns manually 2 trailers with 4 guns and 2 km
hose each
• Start the pumps by PC.
6. 6
The project
• The Danish authorities increased in January 2010 the requirements for fire protection of
Terminals witch are storing flammable liquids, see BEK28 on technical regulations for
flammable liquids.
• According to the technical regulations tanks with capacity greater than 10,000 storage units
for liquids of Class I and II and tank farms should be fitted with foam system.
• Furthermore, tanks that store Class III liquids, and which is less than 50 meters from Class I or
II tanks should be fitted with irrigation.
• In the spring of 2010 the English company Resource Protection International ( RPI) made a
fire protection study for SGOT, and as a result of high costs to meet future requirements for
fire safety in all tanks, a restriction of freedom was decided to retain liquids Class II and III.
Inter Terminals - liquids Class II :
JET FUEL flash point > 38 ° C
Cutter Light cycle oil with a flash point > 51 º C
Inter Terminals - liquids Class III :
GAS OIL flash point > 55 ° C
Biodiesel (max. 30%) with a flash point < 100 ° C.
7. 7
• Tanks with a total volume of approx. 409,000 m³, was equipped with permanently installed foam
system for any storage of Class II and III liquids.
• Tanks for storage of Class III liquids closer than 50 meters from the tanks with storage of Class II
liquids was provided with irrigation systems .
9. 9
Application and Approval
• The Application was sent to the authorities on 10 November 2010.
• DEMA (Danish Emergency Management Agency) permission was granted on 22 December
2011 on the basis of the Agency's terms for authorization of 12 December 2011.
10. 10
Approval and terms
• Most significant terms:
The authorities approved the use of mobile plant or mobile equipment for foam
extinguishing of tank farm fires.
Foam extinguishing system response for tank farm fires, should have a capacity of
approx. 92 m³ foam concentrate liquid and approx. 14,500 liters/Minute
Develop a risk assessment and contingency planning for foam preparedness for tank
farm fires, which has to be approved by Emergency Management and other authorities.
Foam plants for extinguishing the RIM seal and full-surface fires will be established in
accordance with the requirements of TFBV and NFPA 11
Foam facilities for foam cover at tank farms to be established based on the requirements
of TFBV and NFPA 11 with a foam concentrate needs 91 m³.
Irrigation networks for cooling the tanks are carried out according to the requirements in
TFBV and IP 19.
Fire water system is performed with a "reserve" of 4,500 liters. minute for fire and
rescue services at the request of DEMA
ABA systems and CCTV systems will be established in agreement with DEMA.
11. 11
The Building process
• Foam system:
• To meet the requirements for capabilities of foam systems and hydrants used 2 pcs existing
diesel fire pumps each with the following data:
• Q flow 1000 m3/h (16,667 liters / min)
• H lifting height 102 meters head.
• Fire water will be seawater intake through 2 pcs. DN 600 intake pipes fitted with filters at
inlet.
• Existing underground steel pipes for pumps will, where necessary, be replaced with plastic
pipes in material PE in dimension DN 400 (ø400 x 23.7 mm) to meet the requirement of a
sufficient min. pressure of 40 meters head at the tanks foam generators and irrigation
nozzles.
• Operator must under current regulations provide that the diesel tank is filled up by alarm and
when the tank is full alarm will be disabled. The minimum tank capacity of 2500 l meaning
that one fire pump can be kept in continuous operation for approx. 30 hours before the tank
is empty.
• There wil be installed 2 pcs. 100% foam pumps which are driven by water turbine with a
partial flow from the diesel fire pumps each with a capacity of
Q 30 m3/hour flow (500 l / min)
H lifting height 110 meters head.
14. 14
• Tank Coverage
• All tanks with fixed roofs, which is scheduled Cl. II and Cl. III products is designed for full
surface coverage with a specific foam capacity of 4.1 l/min/m2.
Foam coverage made with permanently installed equipment.
• All valves for water and foam to foam systems and valves for irrigation is remote controlled
with electric drive. The valves are normally closed and can only be activated for testing and
active fire fighting.
• Upon activation of the fire switch or alarm fire detection system will diesel pumps
automatically start up at a lower speed of approx. 700 rpm as soon as possible to get the
pipes filled with water. Bleeding the piping is done using mechanical ventilation valves or
valves with electric drive.
• When a fire is detected, a start signal for the tank for active fire fighting and will automatically
place the following:
• Foam system water valve opens automatically using its electric drive
• The pipe system to the current tank is vented and fire pumps operate automatically to the
normal discharge pressure of approx. 9.5 bar. This procedure will prevent damage of piping
systems as a result of uncontrolled water hammer
• While the pumps running up to normal speed will foam valve automatically open using
electric drive and the active fire fighting is in operation and can be started.
• After the fire fighting or testing both water and foam pipe will be drained.
17. 17
• The system does not consists of fixed foam cover equipment of tanks farms, but with mobile/portable
devices.
• It will be possible to have both fire pumps and two foam plants in operation simultaneously with
consequent increased foam cover. The enhanced foam cover will depend on the equipment and the
distance from the pump construction as a result of the pressure drop in the equipment and piping.
• Foam extinguishing installations equipped with standard approved foam generators for equal distribution
of foam on the tanks.
• Floating roof tanks, the foam generators being situated higher than the tanks shroud edge whereby it is
physically not possible to products that can penetrate into the foam pipe and generators.
• At fixed roof tanks will be established a lyre ranked higher than the tanks shell edge thus physically not
possible that there may penetrate products upstream of foam pipe.
• Above ground piping will be made of hot galvanized steel for fire protection. Under-ground pipelines and
pipelines in the pump housing to be built in plastic in quality PE.
• The type of foam to be 3% AFFF-LF Low Freeze Class B for hydrocarbon fuels.
Accredited to EN 1568 Part 3 (3%)
• The total design fire quantity of water is 1000 m3/hr (16,667 liters / min.).
• Foam Liquid will be stored in a storage tank of stainless steel or fiberglass insulated and the trace and
placed under an overhang.
• Foam Pump and valve placed frost-free in the same room as fire pumps.
23. 23
Fire Detection system
• Fire Detection system:
• Fire detection system performed by DBI Guideline 232 "Automatic fire alarm systems",
including testing and component standards in DS/EN54 "Fire detection and fire alarm
systems.”
• Fire detection is carried out by means of heat-sensitive cables. For floating roof tanks
mounted cables on the floating roof foam barrier and for tanks with fixed roof mounted
cables at all vents.
• From the stand placed a fire-safe two-wire cable to the top of the tank where it is connected
to the heat sensitive cable. As the heat sensitive cable is proposed a digital two-wire type,
which at the exceeding of a predetermined temperature (at least 79 ° C / max. Of 95 ° C) of> 5
sec. establish a short circuit in the cable and thereby gives an alarm at the control panel. The
cable is a two-wire with an outer diameter of <5 mm.
• After a fire, the area of the cable which have been exposed to direct flame or heat above 79 °
C changed.
• In floating roof tanks the heat cable is fitted in the middle of Rim Seal.
• On tanks with fixed roofs kept the heat cable around the tank roof and over all vents.
• Visual monitoring of the terminal is done by 8 pcs video cameras. In Port Office control
stations and terminal fire station installed 40" flat screens for viewing surveillance images.
25. 25
Visual surveillance systems
• Establish a visual surveillance systems where both under normal visibility in the dark / fog can
identify and observe any fire from the terminal's own operational security, the fire
department of fire services. The system can also be extended so that monitoring can be
remotely displayed.
• The cameras will be installed on 4 pieces 30 m high masts, each with 2 video cameras, 1 day /
night camera and 1 thermo graphic camera. Each camera is encased in a weatherproof
camera housing equipped with heating and sprinkler / wiper. Below each mast is located 2
pcs. 25 liters sprinkler tank with sprinkler pump.
• The server and hard disk recorder is installed in the port office. This can store recordings for
min. 14 days.
45. 45
Testing and using the system
• Requirements originally:
• DEMA:
All of the foam generators have to be testet with foam liquid once a year.
The Cooling system and pumps have to be tested once a year.
All valves in the system have to be tested once a year.
• Environmental Authorities:
The Foam concentrate must not get into the Great Belt.
The Foam concentrate must not get into the API, Oil Seperator.
All of the water and foam mixtures must be collected after use.
What is the toxic impact of the AFFF-LF foam?
48. 48
The Yearly Test
• The test of foam generators.
We need 3 mobile tanks 30 m³ each
• Total use:
200 m³ Sea Water
6 m³ Foam Concentrate
Hose for connecting discarge to mobile tank
Aggreement with a company, witch can handle the mixed seawater with Foam, ie.
Chemical Disposal Plant.
