API standard 650 fixed roof tanks anchor straps
The cone slope of the completed API standard 650 Fixed roof tanks foundation is 15/1000 for the general foundation and less than 35/1000 for the soft foundation. After the foundation settlement of the storage tank is basically stable, the surface slope must be greater than eight thousandths. The edge of the tank bottom should be more than 0.3 meters higher than the surrounding ground. Above the ground, the tank bottom leakage detection tube should be drawn from the foundation sand cushion and cross the foundation ring wall or the slope protection surface. The circumferential distance should be less than 20 meters, and each API standard 650 fixed roof tanks should have at least 4 detection tubes.
API 620 storage tanks relative standard for referenceAPI Spec 5L, Specification for Line PipeAPI RP 520, Sizing, Selection, and Installation of Pressure-relieving Devices in Refineries, Part II—InstallationASME B31.3, Chemical Plant and Petroleum Refinery Piping (ANSI/ASME B31.3) ASME B36.10M, Welded and Seamless Wrought Steel Pipe (ANSI/ASME B36.10) ASME B96.1, Welded Aluminum-Alloy Storage Tanks (ANSI/ASME B96.1)ASTM A36 Structural Steel for API standard 650 fixed roof tanksASTM A53 Zinc-Coated Welded and Seamless Pipe
There is a gap of 100 mm to 500 mm between the shell of API 650 crude oil storage API standard 650 fixed roof tanks tank and the floating plate of external floating roof to ensure that there is no chuck during operation. Use API standard 650 fixed roof tanks edge sealing system to reduce edge evaporation. The support legs of API 650 crude oil tank floating roof are usually movable and retractable and suspended in liquid.
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