For a 20-cubic-meter storage tank with a working pressure of -0.1 MPa, can a tank with a flat bottom and an oval head be used? (Recommended for Phase 2)
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For a 20-cubic-meter storage tank with a working pressure of -0.1 MPa, can a tank with a flat bottom and an oval head be used? Online help. This post was last edited by The wise are not confused on 2008-9-5 15:55.]
I believe it is usable, but it is necessary to verify whether the stiffness of the flat base to withstand external pressure meets the requirements
It’s a vacuum tank; the owner wants to do this in order to save money on a sealing cover. However, I’ve never seen such a tank being used under these conditions, which is why I’m asking everyone for advice: handshake
This type of structure is generally only suitable for equipment operating at normal pressure; it is advisable not to cut costs at the expense of safety. On the other hand, if the diameter is not large and the thickness of the bottom plate is sufficient, it is theoretically feasible to use it.
Thank you:handshake
As long as the strength is sufficient to withstand the corresponding pressure, that’s enough
Generally, end caps are expensive; to save money, it is also acceptable to use flat tops. ‘Well’-shaped square reinforcement bars can be added to increase its stiffness. The sheet material should not be too thick, otherwise it will result in losing advantages. Note: It is essential to conduct a strength check!
A vertical storage tank with vacuum capability is required for 20 cubic meters; a flat-bottomed tank cannot be used! Since the calculated thickness would be very large, forcing this approach would require many additional reinforcement components to increase its stiffness; it is more cost-effective to use end caps instead.
It also depends on what type of medium is stored in the tank, as well as what material the tank is made of
It can be used this way; there’s no problem
A volume of 20 cubic meters is relatively large, and the wall thickness of the pressure vessel must be thick; in terms of strength, there are generally no issues. The key problem lies in stiffness. Therefore, it is possible to use a flat head as long as the strength requirements are met and the structure is reinforced with steel members, but this approach is not commonly used in design.
It’s actually just a matter of the top and bottom bases. Either an elliptical head or a flat cover can be used; however, strength calculations are required. If calculated based on an external pressure of 0.1 MPa, a flat cover may not necessarily be cheaper than an elliptical head. Those involved in design should adopt optimized solutions; the actual costs need to be compared – a flat cover is not necessarily cheaper than a hood. In cases like this, where the cylinder has a large diameter, using a flat cover is not necessarily cost-effective. The boss doesn’t understand, that’s why he hired us.
Safety first; it’s best to design in accordance with relevant regulations
When actually saving materials, it is recommended to try using cross-shaped steel pipes for the bottom lining
As long as the calculation is successful, it can be used; remember that the calculation must pass.
The base plate can be reinforced.
Sure, we have used it. Bottom plate strength verification, improvement of welding quality, pressure testing.:
It mainly depends on the type of medium you store. If it’s a liquid with a high specific gravity and a high liquid level, it might be feasible, as the weight of the liquid helps to balance part of the pressure. But if it is a gas, such as air, it is recommended to use an elliptical head; the money you allocate for reinforcing ribs is sufficient to cover the cost of an elliptical head.
There should be no problem, but a stability check is required. A flat head cover with reinforcing ribs will suffice.