The main common types of metal oil storage tanks are vertical dome roof oil storage tank, vertical outer floating roof oil storage tank, vertical inner floating roof oil storage tank, spherical oil storage tank and horizontal oil storage tank.
The capacity of vertical dome roof oil storage tank is generally less than 10000 cubic meters. The wall plate adopts sleeve fillet weld. It is usually installed by upside down method or formal method during construction.
The tank top of vertical external floating roof oil storage tank has no vault, only the disc floating roof that can float up and down. The wall plates are connected by butt welding. The formal installation method is commonly used in construction, and the storage capacity is usually greater than 10000 cubic meters.
The vertical internal floating roof oil storage tank has both dome roof and internal floating roof. The internal floating roof floats on the liquid level inside the dome roof oil tank and can float up and down. The storage capacity is usually between 1000 and 10000 cubic meters.
The spherical oil storage tank can bear more pressure than the vertical cylindrical storage tank, and its manufacturing requires less steel plate, but the construction is difficult, and the storage capacity is usually 50 to 2000 cubic meters.
The storage capacity of horizontal oil storage tank is small, generally about 50 cubic meters. It is often used in small oil depots or gas stations.
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