IHI-SPB Intrinsically Safe Cryogenic Cargo Containment System of IHI-SPB Tank IHI- SPB IHI-SPB IHI-SPB The recent skyrocketing demand for and deep water gas field development attracted the attention of businesses to floating production, storage, and offloading installations, transportation, and fuelled vessels in the marine and offshore industries. The IHI-SPB cargo containment system has excellent features and is suited to carriers sailing on rough seas and floating units working nonstop, because it has intrinsically safe functions, thanks to its high reliability and structural features, and preparedness in the event of an accident. This paper introduces these safety functions that the IHI-SPB is built with. 1. 緒 言 ( ) ( F ) F -163 1 200 300 t 200 000 250 000 m 3 40 000 m 3 4 5 m 3 2. IHI-SPB タンク MOSS IHI-SPB 3 IHI-SPB Self-supporting Prismatic shape IMO type B 第 1 図 IHI-SPB ( IHIMU ) IHI-SPB F IHI-SPB ( 1 ) F 48 IHI Vol.52 No.3 ( 2012 )
2 第 1 図 IHI-SPB Fig. 1 IHI-SPB tank 3. IHI-SPB の 実 績 IHI-SPB 1980 1981 75 000 m 3 LPG 1988 1 500 m 3 /LEG 1993 87 500 m 3 Polar Eagle 第 2 図 ( 2 ) Arctic Sun 1997 54 000 m 3 Escravos LPG FSO ( 3 ) 2005 135 000 m 3 Sanha LPG FPSO ( 4 ) Polar Eagle Arctic Sun 第 3 図 ( 2 ) 18 18 IHI-SPB 2011 10 Polar Sprit Polar Eagle 第 4 図 第 5 図 1993 IHI-SPB 4. IHI-SPB の 特 長 IHI-SPB IHI-SPB ( a ) ( b ) 第 2 図 1993 IHI-SPB Polar Eagle Fig. 2 S/S Polar Eagle ( IHI-SPB inside ), since 1993 第 3 図 Fig. 3 The world s harshest trade route : Kenai, Alaska Tokyo, Japan IHI Vol.52 No.3 ( 2012 ) 49
第 4 図 IHI-SPB Polar Sprit 18 Fig. 4 IHI-SPB Al tank ( Polar Sprit 18 years old ) 第 5 図 IHI-SPB Polar Sprit 18 Fig. 5 Supporting structure of IHI-SPB ( Polar Sprit 18 years old ) LPG F 2 18 IHI-SPB ( 2 ) 第 6 図 FEM ( Finite Element Method ) F 25 30 5 1 FEM IHIMU ( IMO ) IGC 2 IHI-SPB 5. 貨 物 貯 蔵 設 備 の 安 全 性 IHI-SPB 第 6 図 FE Fig. 6 Whole ship FE model ( Hull, tank, and wooden support included ) 50 IHI Vol.52 No.3 ( 2012 )
5. 1 スロッシングが 発 生 しない 1969 Polar Alaska 20 Arctic Tokyo 1971 1978 Larbi Ben M Hidi 2006 Catalunya Sprit 2004 2008 Mark III 3 ( 5 ) ( 5 ) 5 95-163 BOG F 24 365 1 25 30 F F F IHI-SPB ( Swash Bulkhead ) ( 6 ) 第 7 図 FLOW-3D 第 7 図 - ( a ) 第 1 表 ( 1 ) Level - I SLOSH ( 1 ) ( a ) 1 ( b ) 2 第 7 図 ( 6 ) Fig. 7 Example of liquid motion analysis in rolling motion ( 6 ) IHI Vol.52 No.3 ( 2012 ) 51
SAFE DANGER Safety Level Notation Level - I SLOSH ( 1 ) Level - II SLOSH ( 2 ) Level - III SLOSH ( 3 ) Level - IV SLOSH ( 4 ) 第 1 表 Table 1 Safety level against sloshing Cargo Liquid Resonance No Resonance Resonance in Designated Liquid Level Resonance Cargo Liquid Level Restriction Range No Cargo Liquid Level Restriction Liquid Motion Analysis CCS Reinforcement Emergency Release Hose to Shuttle Performed Not necessary Available No Resonance, Liquid Motion Analysis is not performed. CSR-T ( OIL ) 75% - Full Allowed Performed Only Full ( higher than 95% ) or Empty ( lower than 5% ) Allowed Not performed Reinforced Specially Reinforced Specially Specially Considered with Risk Analysis Not Allowed F Level - I F ( 2 ) Level - II SLOSH ( 2 ) ( 3 ) Level - III SLOSH ( 3 ) ( 6 ) ( 4 ) Level - IV SLOSH ( 4 ) 5. 2 点 検 保 守 が 容 易 IHI-SPB ( Horizontal Girder ) 1 m 第 8 図 IHI-SPB 第 9 図 IHI-SPB 2 2 IHI-SPB 第 8 図 Fig. 8 Walkway between inner hull and tank outside insulation 52 IHI Vol.52 No.3 ( 2012 )
2 IHI-SPB ( OPEX ) 5. 3 衝 突 浸 水 時 の 強 度 F ( 3 ) F 135 000 m 3 175 000 m 3 IHI-SPB 0.25 G F 30 0.5 G 第 9 図 2 2 2 2 IHI-SPB 2 第 9 図 IHI-SPB Fig. 9 Inspection space between hull and IHI-SPB tank IHI-SPB AF ( Anti-Floating ) ECT ( Emergency Cargo Transfer ) 第 10 図 第 11 図 FE 5. 4 停 電 時 の 安 全 性 IHI-SPB 2 AF 2 第 11 図 FE Fig. 11 FE analysis of flooded hull condition 第 10 図 F Fig. 10 Cross-section of F in flooded condition IHI Vol.52 No.3 ( 2012 ) 53
第 5 図 IHI-SPB 第 12 図 6. 1 F 6. IHI-SPB のこれから IHI-SPB F 2 第 12 図 IHI-SPB Fig. 12 Tank arrangement with IHI-SPB cargo containment system F 60 65 m IHI-SPB F 1 50 57 m F 2 F 6. 2 燃 料 タンク m 3 F IHI-SPB IHI-SPB 7. 結 言 IHI-SPB F F IHI-SPB 54 IHI Vol.52 No.3 ( 2012 )
参 考 文 献 ( 1 ) S/S Polar Eagle & Arctic Sun Vol. 53 No. 1 2000 1 pp. 60 72 ( 2 ) Polar Eagle Arctic Sun 34 4 1994 7 pp. 248 254 ( 3 ) Gautam. J. Adhia, Maria-Celia Ximenes and Akinori Abe : Design and Construction of a Floating Storage and Offloading Vessel ESCRAVOS LPG FSO The Society of Naval Architects and Marine Engineers ( 1997 ) ( 4 ) Y. Awashima, E. Aoki, H. Ishikawa, K. Watanabe and T. Morita : Development and Construction of LPG- FPSO IHI Engineering Review Vol. 39 No. 1 ( 2006. 2 ) pp. 9 14 ( 5 ) T. Gavory and P. E. de Seze : Sloshing in Membrane Carriers and its Consequences from Designer s Perspective the 10th ( 2009 ) International Society of Offshore and Polar Engineering Conference ( ISOPE-2009 ) ( 2009. 6 ) pp. 13 20 ( 6 ) H. Kobayakawa, H. Kusumoto and M. Toyoda : Numerical Simulation of Liquid Motion in SPB Tank the 22th ( 2012 ) International Society of Offshore and Polar Engineering Conference ( ISOPE-2012 ) ( 2012. 6 ) IHI Vol.52 No.3 ( 2012 ) 55