Price comparison between elliptical head and spherical head
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consult: For a vertical chemical container, which one is cheaper with an elliptical head or a spherical head at the bottom?
Price shouldn’t be important to design, right?
It should be that the oval head is cheaper.
Oval heads are relatively cheaper.
The cost of using spherical heads for high-pressure vessels or containers with thick walls is low, because the spherical heads are in good pressure condition and can have thinner walls.
If it is not necessary, it is recommended to use an elliptical head. Not to mention it is cheaper, it may be easier to buy, and the construction schedule will not be delayed.
For the craft major, you can choose which form is more in line with your requirements. The equipment major can proceed with the next step by referring to the conditions provided by the craft. As for the price, the designer only considers it as a reference condition, not a design condition·~~~~·
Usually elliptical heads are used. In special cases, comparisons should be made. Price is not only a factor.
The oval head is good, popular, easier to buy, and the price is relatively low.
I also think it is better to use an elliptical head. In addition to being cheaper, there are also many specialized production units. You can also shop around.； For spherical vessels and high-pressure vessels, spherical heads can be used. After all, the stress state of spherical heads is better than that of elliptical heads.
It should be comprehensively considered that the spherical head has a thinner wall than the elliptical head, but the processing cost is high. Under normal circumstances, it is better to use an elliptical head.
Generally, spherical heads are used for high-pressure products, such as synthesis towers, etc.
In terms of pressure-bearing capacity of the two types of heads, the spherical head is much better than the elliptical head. At the same design pressure level, the wall thickness of the sphere is much smaller than that of the oval. In terms of manufacturing, the oval shape is much lower, saving money. For containers of Category II or above, it is better to use spherical heads.
I am in favor of reality* According to the moderator, the most important thing for a pressure vessel is to consider the design and use requirements of the pressure vessel. As for using an elliptical head or a spherical head, whichever is cheaper is not the key point. In general, manufacturing is not difficult.
For manufacturing, elliptical heads are easy to manufacture, but the wall thickness of spherical heads for high-pressure equipment is thinner than elliptical ones, so comprehensive considerations must be taken.
I agree with what was said above. If the spherical head had no advantages, it probably wouldn't exist.
Oval heads are cheaper, and most containers have oval heads.
The elliptical head is easy to manufacture, but is more complicated to manufacture than the spherical head. Under the same design conditions, the thickness of the spherical head is thinner, and the thickness of the elliptical head is thicker than the spherical head. If the thickness is not too large, it is recommended to use an elliptical head or a dish-shaped head.
I generally recommend that customers use elliptical heads for aesthetic and duty cycle reasons. Unless there are special requests.