API standard 650 uplifting tanks drains

The water dissolved in the oil will be separated out from the oil stored in the API standard 650 uplifting tanks for a long time, and the acidic water layer will appear at the bottom of the API standard 650 uplifting tanks for a long time, which will accelerate the corrosion of the API standard 650 uplifting tanks and cause the wall thinning and even leakage. With the increase of service life, the API standard 650 uplifting tanks must be inspected and cleaned regularly to check the hidden danger.

Any joints between the adjacent sections of API 620 oil storage tank stiffening rings, as shown in Figure Q-1, shall be made so that the required moment of inertia of the combined ring-shell section is provided. Weld joints between adjacent sections shall be made with full-thickness and full-penetration butt-welds. Stiffening-ring butt-welds may employ metal backing strips. Backing strips and the associated welding shall be made in a manner that provides a smooth contour in the rat hole and all other weld joint ends. All weld passes shall be started at the rat hole and other weld joint ends and shall be completed by moving away from these ends. Passes shall be overlapped away from edges to provide a smooth continuous weld.

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The floating roof is the top cover floating on the liquid level, so the sealing performance of API standard 650 uplifting tanks API 650 oil storage tank is very important. The floating plate mainly adopts elastic packing, and at the same time, it is compressed with the wall of API 650 oil storage tank with pressure strip around, and fixed with the floating plate with bolts. After the API standard 650 uplifting tanks floating plate is lowered to a certain position of about 1.8m, a prop will support the floating plate to keep it in position.