Help needed! When PVELite calculates the outer perimeter of the bottom of a storage tank, how should the discrepancy between the diameter of the flat cover head and that of the connected components be addressed?
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This post was last edited by WallaceLee on 2022-6-25 at 20:40. As shown in the diagram, an oil storage tank is being designed in accordance with ASME standards; its structure is based on the 3,000-cubic-meter dome-type oil storage tank outlined in the \"Dome Oil Tank Atlas\" published by Daqing Petroleum and Chemical Engineering Design Institute. As shown in the diagram, the bottom of this type of oil storage tank has a peripheral edge, that is, a part that protrudes from the tank body, as illustrated. Based on the structure of the tank bottom in this case, PVELite was used to design the bottom part of the tank: once again, a peripheral structure was applied to the tank bottom. However, when exporting the calculation results, an error occurred stating that “the flat head diameter is not consistent with the attached element” – in other words, the diameter of the welded flat cover does not match that of the component it is connected to. ”Error: Now I would like to ask: 1. Can’t the bottom of an ASME tank be designed in PVELite by following the design of oil tanks with peripheral structures? 2. For PVElite, how can this error be eliminated? I hope the experts can offer some guidance! ! !
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This post was last edited by lmq881825 on 2020-8-10 09:01 :D
This post was last edited by lmq881825 on 2020-8-10 09:00. I misread the first reply; apologies.
Let me guess: I don’t know what standards you’re using; ASME oil tanks are probably API650, right? As far as I know, PVelite is used for calculating pressure vessels. Do you know what the standard for pressure vessels is? Do you know what the flat-head end caps inside are like? For example, the flat heads specified in GB150 do not have this appearance, and the error shown in your drawings also indicates that this type of end cap is not suitable. The pressure you entered should be the hydrostatic pressure of a liquid column. If I’m right, you need to take a look at: 1. the standards you use, and 2. whether PVelite meets those standards. If this software can calculate such oil tanks, it’s possible that you didn’t select the correct standards and head types when making your choices. If what I said is incorrect, please feel free to correct me.
You’re right. I consulted with an industry mentor; generally, oil tanks are vessels that operate at atmospheric pressure. ASME standards apply to pressure vessels, while PVELite can only be used to calculate thicknesses. It might be more appropriate to use the Tank software for calculating the parameters of storage tanks
That’s good. Let me add one more thing: be sure to check the scope of application.