3.1 3.1.1 (1) (2) ( ) (3) (4) 3.1.2 P&I P&I (Piping & Instrument) _3.doc 1/30
P&ID P&I P&I (1) P&ID (2) (3) 3.1.3 _3.doc 2/30
(1) (2) (3) (4) P&ID 3.1.4 (1) (2) 3.2 _3.doc 3/30
3.2.1 (1) (2) (3) _3.doc 4/30
(4) 1 or 2 3.2.2 (1) (2) (3) (4) _3.doc 5/30
3.2.3 3.2.1 3.2.3.1 1 2 1 _3.doc 6/30
3.2.3.2 DCS, PLC DCS Operator Station, I/O 3-2-1 2 out of 3 3 1 2 2out of 3 3.2.3.3 2 3-2-2 3.2.4 _3.doc 7/30
3.2.4.1 3.2.1 3.2.3 Independent Protection Layer : IPL 3.2.1 : Inherent Safer Plant DCS BPCS BPCS 1 2 _3.doc 8/30
3.2.3 : IPL 3.2.2 3.2.2 : Inherent Safety Passive Safety _3.doc 9/30
Active Safety Procedural 3.2.3 3.2.3 : Inherent Safety Passive Safety Active Safety 20bar 30bar 20bar 15bar 10bar 15bar Procedural 10bar _3.doc 10/30
3.2.4.2 (Safety Instrument System: SIS) (a) 3.2.4 Start PHA SIS PSSR SIS (non-sis) No SIS Yes SIL SIS PSAT Legend: ISA-S84.01 ISA-S84.01 3.2.4 : SIS _3.doc 11/30
1) HAZOP 2) SIS 3) SIS 4) SIS SIL 5) 6) SIS SIS 7) SIS (b) _3.doc 12/30
1) LC 1 LAH 1 LT 1 3.2.5 : HAZOP _3.doc 13/30
LV-1 LAH-1 LT LPG SIS PSV-1 LT-1 LV-1 PSV-1 2) (Safety Integrity Level:SIL) (SIL) IPL-1 LPG 1.2 +15 IPL-2 BPCS LC-1 IPL-3 BPCS IPL-5 ASME 3.2.6 SIS _3.doc 14/30
1 1 1 2 2 2 NA NA 1 NA NA NA 1 1 2 3 3 3 NA NA 1 IPL 2 2 3 1 1 2 NASIS SIL 3.2.6 SIS SIL _3.doc 15/30
3) LAH 1 S VENT LT LT 1 2 FC FC 3.2.7 : SIS LC 1 I AS HS 2 2 _3.doc 16/30
4) LV(ESD) Fails on demand Or 1 LV Control System Failure Or 2 LV(ESD) Fail to close on demand Or 6 LT Independent Failure LC Logic Solver Failure LV(ESD) Fail to close when signaled LV Solenoid Valve Failure Basic 3 Basic 6 Basic 1 Basic 9 Lambda=5e-005 Lambda=2e-007 Lambda=8.3e-007 Lambda=6e-006 3.2.8 : SIS 3.2.8 FTA (Probability of Failure on Demand:PFDavg) = 6.2516E-3 SIL-210-2 > PFDavg 10-3 (PFDave) (ave) (FTA) MTBF(Mean Time between Failure) FMTA(Failure Mode Effect Analysis)FTA (Fault Tree Analysis) _3.doc 17/30
SIS ISA SP84 Safety Instrumented System : SIS ISA - S84.01-1996 Application of Safety Instrumented Systems for the Process Industries ISA Safety Instrumented System : SIS Emergency Shutdown System : ESD, ESS Safety Shutdown System : SSD Safety Interlock System _3.doc 18/30
3.2.4.3 SIS 3.2.4 (a) BPCS SIS SIS BPCS SIS BPCS SIS BPCSSIS PES BPCSSIS SIL I/O SIL2 SIL3 SIS BPCS SIL1 SIL1 BPCS BPCSSIS BPCS SIS BPCS SIS SIS _3.doc 19/30
3.2.4 : SIS SIL SIS SIL1 SIL2 SIL3 0.90.99 0.990.999 0.9990.9999 PFDavg 10-1 > PFDavg 10-2 10-2 > PFDavg 10-3 10-3 > PFDavg 10-4 1oo11oo22oo22oo3 1oo22oo22oo3 1oo22oo3 BPCSSIS BPCSSIS BPCSSIS SISSIS PHA PHA PES I/O I/O I/O PESDCS WDT PES PES I/O I/O BPCS BPCS SIS SIS WDT WDT WDT _3.doc 20/30
BPCS SIS (b) N M M out of N(MooN) SIS 1oo1 1oo2 2oo2 2oo3 SIL1SIL2SIL3 3.2.4 1oo2 2oo2 2oo3 SIS SIS SIS PES Watchdog Timer : WDT WDT WDT _3.doc 21/30
(c) BPCS SIS SIL3 UPS PES (Programmable Electric System) PES PLC(Programmable Logic Controller) _3.doc 22/30
3.2.4.4 DCS 1980 _3.doc 23/30
3.3 3.3.1 3.3.1.1 (a) In/Out 2 (b) In (c) (b)(c) (c) (b) H2 _3.doc 24/30
(c) (d) 2 A2000 Nm3/h, B: 10000 Nm3/hr B PIC A B B FIC 2 (e) 1 PIC 3.3.1.2 (a) (b) (a) _3.doc 25/30
(c) (a), (b) (d) (a) (a) 3.3.1.3 3.3.1.1 3.3.2 3.3.2.1 (1) _3.doc 26/30
(a) (b) (a) 3-3-1 3-3-1 _3.doc 27/30
(b) (c) _3.doc 28/30
3.3.2.2 (a) (b) ( ) (c) _3.doc 29/30
3.3.2.3 3.3.2.4 _3.doc 30/30