PHÂN LOẠI BỂ CHỨA DẦU

Crude Oil Tank
Toan Vu


Type of Storage Tank

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Fixed Roof Tanks
• Atmospheric tank (free
vent)
• Low pressure tanks
(approx. 20 mbar of
internal pressure)
• High pressure tanks
(approx. 56 mbar of
internal pressure)

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Cone/ Dome Roof Tanks

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Floating Roof Tanks
• Internal floating roof: the roof floats on the product in a fixed
roof tank.
• External Floating roof: the roof floats on the product in an

open tank and the roof is open to atmosphere.

Single Deck

Doube Deck
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Ladder above the Roof

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Typical Fitting and Accessories
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•
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•
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Roof Seal System
Support Leg
Roof Drain System
Vent – Bleeder Vents
Centering and Anti-Rotation
Device
• Rolling Ladder and Gauger
Platform

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Legs

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Drainage system

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Drainage system

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Bleeder Vents

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Typical Fitting and Accessories
• Fire Fighting System and Foam
Dam

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Fire Fighting System and Foam

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Tank Capacity

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Design Codes and Standards
• American Standards API 650 (Welded Steel Tanks for Oil
Storage)
• British Standards BS 2654 (Manufacture of Vertical Storage
Tanks with Buttwelded Shells for the Petroleum Industry
• The European Standards
– German Code Din 4119 – Part 1 and 2 (Above Ground Cylindrical Flat
Bottomed Storage Tanks of Metallic Materials)
– The French Code, Codres – (Code Francais de construction des
reservoirs cylindriques verticauz en acier U.C.S.I.P. et S.N.C.T.)

• The EEMUA Standards (The Engineering Equipments and
Materials Users Association)
• Company standards
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Tính toán thiết kế/ Đầu bài

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Tính toán thiết kế/ Đầu bài

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Tham khảo NMLD Dung Quất

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Tính toán thiết kế
Tóm lại, bể cần thiết kế có có thông số chính sau:

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Tính toán thiết kế
• Số đoạn thân bể:
(hi: là chiều cao thân bể = 2,438m, theo chuẩn)

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API 650 - 2007

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Tính toán thiết kế

• Tóm lại: các thông số bể như sau:
– Đường kính: 69 m;
– 10 tầng: 9x2.438 m + 2.258 m = 24,2 m;
– Chiều dày thân bể: >= 10 mm.

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Tính toán thiết kế

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Tính toán thiết kế

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Tính toán thiết kế
• Thay số:

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