Number of compartments on large tankers
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There are many large external floating roof storage tanks, and many of them are designed and manufactured in China. Not only are there considerations regarding the design principles for the number of floating roof compartments, but it is also important to know how to arrange the compartments in a 100,000 cubic meter storage tank in the most appropriate way while meeting standard requirements. I would appreciate it if experienced colleagues could join the discussion and share their insights.
Most of it is copied from Japanese designs; some engineers, out of caution, add more elements to them. Basically, no domestic organization has carried out any detailed analysis or calculations. This post was last edited by Banbingcuo on 2009-4-20 at 09:28.]
Could the friend on the 2nd floor provide the specific figures, or send them to the email address gousw2006@163.com? Thank you
I’d like to know that too. I heard that the floating roof can be purchased by the owner themselves; I asked some salespeople specializing in floating roofs online, and as long as you tell them the diameter of the large tank, they have ready-made products available for selection.
Aluminum internal floating roofs produced domestically, as well as steel arch roofs of the mesh shell type, are essentially \"designed\" and manufactured by the manufacturers themselves. To reduce costs and increase the chances of winning bids, the safety factors are reduced; as a result, such structures rarely meet domestic or international standards. Under normal use, they are generally fine, but when it comes to abnormal loads or stresses that need to be taken into account, almost none of them meet the required standards. Some even do not meet the test load requirements.
In fact, there is a design criterion for determining the number of compartments: in a floating state, the float top must not sink even if any two compartments or a single disk leaks at the same time. The number of compartments is determined based on this requirement. However, in the design of large storage tanks these days, designers generally refer to existing drawings rather than conducting similar calculations and comparisons. Another point is that it is necessary to reduce the amount of welding work inside the ship’s compartments, which in turn can decrease the likelihood of leaks
Could the friend on the 6th floor provide the data for various manufacturers? Thank you