What is internal floating roof tank?
The internal floating roof tank is also known as IFR tank. It is one of the floating roof tanks (FR tanks), which are broadly divided into IFR tank and external floating roof tank. The most widely executed design standard for internal floating roof tank is API standard 650, Welded Tanks for Oil Storage.
The outline structure of internal floating roof tank is roughly the same as that of dome oil tank. Compared with External floating roof tank, internal floating roof tank has a fixed roof. And it is beneficial to improve the storage condition of oil products, especially to prevent the rain water from entering the oil tank and slow down the aging of sealing ring.
At the same time, internal floating roof can effectively reduce the oil loss. Therefore, internal floating roof tank has the advantages of Fixed roof tank and floating roof tank. The American Petroleum Institute: the perfect designed internal floating roof is the best and lest investment method to control the oil evaporation loss of fixed roof tank so far.
Advantages of the internal floating roof tank:
1. As it is covered a floating roof, the stored liquid is separated with air, which reduces the air pollution and dangerous of explosion, so that it is easy to guarantee the quality of liquid.
2. It is easy to transform the fixed roof tank into the internal floating roof tank, and cancel the respiratory valve, flame arrester and other accessories, with less investment, obvious economic benefits.
3. Because there is a fixed roof, it can effectively prevent wind sand, snow or dust pollution in the reservoir, to ensure the quality of the reservoir in a variety of climate conditions, the internal floating roof tank is called "all-weather tanks".
4. At the same time, the load on the internal floating plate is light. The structure of internal floating roof tank is simple: the central drainage pipe, rotating floating ladder and other accessories can also be saved. The internal floating roof tank is easy to construct and maintain. The material of the sealing part can avoid aging caused by sunlight.
Under the same sealing conditions, compared with external floating roof tank, internal floating roof tank can further reduce the evaporation loss.
Application of the internal floating roof tank:
The internal floating roof tank can be used to store naphtha, gasoline, diesel, kerosene, crude oil, fuel oil, heavy oil, jet fuel and other volatile oil products, as well as aldehydes, alcohols (methanol, ethanol), ketones (acetone), benzene (toluene, xylene, styrene) and other liquid chemicals.
