Oil storage tank equipped with a floating roof means of floating bed type

摘要

The present invention relates to an oil storage tank equipped with a floating bed type inner floating roof. it is within the technical field of petrochemical facility. The oil storage tank comprises a tank body and an inner floating roof which lies on the liquid surface inside the tank. The inner floating roof includes filling bags and a resilient sealing tube. The filling bags are filled with floating plates separated by isolation sheets. The resilient sealing tube is disposed around the entire circumference of the filling bags, and is in contact with and biased against the inner wall of the tank body. The oil storage tank of the present invention has the following advantages: 1. It is simple in construction; 2. With the amount of metallic components used in the inner floating roof being reduced, therefore its weight is lowered, and the ratio of buoyancy to weight is increased; 3. Since the inner floating roof is made of oil resistant rubber fabric which is electrically insulated, the risk of electrostatic damage no longer exists; 4. With the thickness of the inner floating roof being reduced, thus the effective capacity of the oil storage tank can be enlarged.