Selection of floating roof structure and type of central drain pipe for external floating roof tanks
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The floating roof structure of external floating roof tanks comes in single-plate and double-plate forms. What determines which structure to use? This post was last edited by aymzj on 2008-4-29 07:00]
The central drainage pipe designs for the floating roof of external floating roof tanks currently include the \"rigid type\", the \"flexible type\", and the \"rigid type with flexible joints\". Which structure offers the highest reliability?
For floating roof tanks with capacities of 1000, 2000, 3000, or 5000 cubic meters, double-disc floating roofs are used. Double-disc designs require more material and result in higher costs; therefore, single-disc designs are more economical. For floating roof oil tanks with a capacity of 10,000 to 50,000 cubic meters, a single-disc floating roof is used to ensure economic viability
The heat insulation effect of a dual-disc design is better than that of a single-disc design. Furthermore, the flatness of a single disk is inferior to that of a double disk, so water tends to accumulate on the top of the tank. In short, it depends on the economy type, tank type, medium, environmental conditions, and so on.
Central drainage system with flexible joints.
For large storage tanks with a capacity of over 100,000 cubic meters, dual-disc design is preferable in terms of operating costs and maintenance. Additionally, in areas with high annual rainfall and frequent typhoons along the coast, dual-disc design is the best choice. In short, the decision regarding whether to use a single-disc or dual-disc design should be based on various factors.
A detailed explanation can be found in the post on the forum at http://bbs.hcbbs.com/viewthread.php?tid=504528&page=1#pid2787186. The reliability is very good. But the key components all need to be imported from abroad, resulting in high costs. :(There is almost no technical content; in other words, there are no successful examples of domesticization. Many are selling dog meat under the guise of sheep meat. Imported from the \"Korean bastards\" or from Germany, the United States, and Canada. . . . .
These days, central drainage downspouts made of flexible materials are quite common, right?
Reply to 3#: Ask Zhenzhen – this is the single-disk floating roof we are using
Reply to 4# qdfox: It’s supported. Currently, for one tank here, half of the disk is filled with water
Reply to 2# wml-cl: For the central drainage pipe of external floating roof tanks, the available options are the \"rigid type\", the \"flexible type\", and the \"rigid type with flexible joints\". Which structure provides the highest reliability? Now, the “flexible form” is mostly chosen due to the importance of drainage from the storage tank. For volumes over 30,000 cubic meters, damage to the drainage system can result in significant losses.