API 650 welded tanks for oil storage shell design
Pipeline transportation of API 650 oil tank is not less than the maximum consumption of 3 to 5 days. The daily operating time of API 650 welded tanks for oil storage office buildings and fuel oil equipment is 12-16 hours; for high-end residential hotel buildings, the daily operating time is 16-24 hours.
The tank shall be filled with water to the design liquid level unless height is limited as noted in API 620 standard Q.8.1. After the tank is filled with water and before the pneumatic pressure is applied, anchorage, if provided, shall be tightened against the hold-down brackets. All welds in the API 650 welded tanks for oil storage shell, including the corner weld between the shell and the bottom, shall be visually checked for tightness.
Deformation of the welding seam of the API 650 welded tanks for oil storage is a common quality problem during the actual use of the API 650 welded tanks for oil storage, which easily causes the tank body to leak and affects the safety of the oil storage tank. The welding seam deformation of the API 650 welded tanks for oil storage is mainly caused by the lack of reserved welding seam gap and irregular operation. The oil storage tank has not reserved the corresponding weld gap, resulting in deeper root removal during the front welding activity. The heat output of the weld will increase under the influence of a long time, and the deformation of the weld will gradually become serious.
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