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FIRE FIGHTING inergen 200bar
Cliente/Customer : NUOVO PIGNONE S.p.A. For KNPC Località/Location : MINA AL-AHMADI REFINERY- KUWAIT Impianto/Plant :INERGEN SYSTEM 200 bar – PROPANE REFRIGERANT COMP. PCK. & FEED GAS COMP. PCK
1.0 INTRODUCTION 2.0 INTERVENTION SEQUENCE 3.0 SYSTEM RESET 4.0 SYSTEM DESCRIPTION 5.0 SYSTEM MAINTENANCE 6.0 TRANSPORTATION AND STORAGE ATTACHMENT “A”: INERGEN® 200 BAR DATA SHEETS ATTACHMENT “B”: PRE – COMMISSIONING, COMMISSIONING AND START –
The idea was developed inside our group to safeguard human life and ambient assuring efficiency in fire fighting prompt extinction. The INERGEN
® concept, although simple, was born after many years of a careful study of
environmental problems. In fact after the discovery of the hole in the ozone layer in the 1985, it was established that compounds containing clolorine and bromine, as well as Halon gases, are responsible of ozone depletion. According to above, on 28
th December 1993 the Italian Law n. 549 was issued and starting from
1st Jan. 1994 it was forbidden the production, the import/exportat and the storage of halogenated
hydrocarbons (Halons). 1.1 EXTINCTION TYPOLOGY
INERGEN® extinguishes by diluting the oxygen concentration in the air.
INERGEN
® extinguishes using only Nitrogen, Argon and Carbon Dioxide, natural components of
the air that we breathe, for this reason there is no damage for people, ambient and delicate equipments or materials. INERGEN
® ensures that the brain receives as much oxygen as in normal air, while maintaining an
extinguishing (environment) status. Instead the small quantity of carbon dioxide in INERGEN
® raises the level of Carbon Dioxide in the
protected volume stimulating the body to breath more deeply, dilates the blood vessels in the brain and assists the transfer of oxigen to the tissues.
1.2 INERGEN FEATURES * Safe for people * no environmental impact * no damage on equipments or materials * no decomposition compounds * do not take place in combustion * high holding time * non thermic shock * no risk of eletrostatics changes * no reduction in visibility * breatheable gas with no colour and odour * made of natural gas * always available
System is designed to be a total flooding system plus extended discharge The system consists in high pressure vertical cylinders complete with hand wheel Valves, Electric Actuators Automan II C, pneumatic connections, discharge and pneumatic actuation pipes. The cylinders and a big part of components are installed inside a skid for each system as f ollowing reported: - System TRAIN “C-235-001A”– Job 1800055: N. 1 SKID - System TRAIN “C-235-001B”– Job 1800056: N. 1 SKID - System TRAIN “C-231-001A”– Job 1800057: N. 1 SKID - System TRAIN “C-231-001B”– Job 1800058: N. 1 SKID Dimension for each Skid 2600 mm x 830 mm x 2350h mm
The zone above indicated is protected by No. 1 Skid complete of quick discharge battery (4 Cylinders) and extended discharge battery (4 Cylinders). The cylinder batteries are actuated by no. 2 Automan IIC Releasing Device, each complete of solenoid valve, nitrogen cartridge, manual push button and located at inside the skid. Each Automan IIC Releasing Device active the quick and extended battery.
The fire fighting systems pilot cylinders are equipped with manual actuators designed to operate the battery of the protected area. Each cylinder, is provided with pressure gauge for check the pressure. All the electric devices are connected to the junction boxes located external the cabinet.
System is operated either by means of a Fire Control Panel (supplied by Customer) or manually with a proper mechanical manual push button located in Automan IIC Releasing Device The sequence of actuation has been defined by Customer. The INERGEN
® is discharged in the protected area by means of a manifold and through
high pressure pipe work and nozzles. The pressure reducer will limit the pressure inside pipes downstream a value below 69 bar max. INERGEN
® is a gas and when discharged in the protected area check that all doors and
dampers are closed; and the activation system must be in operation except when in maintenance condition. To release the overpressure during discharge, adequate venting will be provided with overpressure dampers installed in the protected area according to design documents.
The skids are installed near the protected zone. Skids will be interconnected by means cut-off valve necessary to select the batteries in case of event or maintenance on the batteries. Cut-off valves are provided with proper limit switches to check every time the correct status of valves .
a) AUTOMATIC OPERATION On each protected area Actuation of AUTOMAN IIC Releasing Device by means of the Fire Control Panel
b) MANUAL OPERATION (EMERGENCY) On each protected area Remove the safety pin and Push the manual discharge push button of the one of AUTOMAN IIC Releasing Device
c) MANUAL OPERATION (EMERGENCY) On protected area Remove the safety pin and pull the manual Lever Release Actuator of pilot Cylinder Quick battery and pilot Cylinder Extended battery