How should the volume of a pressure vessel be indicated?
Thread Content
There is currently a gasification furnace that belongs to category 2; it has an insulating and wear-resistant lining. The volume of the steel shell is 28 cubic meters, and the interior of the shell is lined with such an insulating and wear-resistant material. The effective volume after this lining is 20 cubic meters. So, should the volume indicated on the assembly diagram be 28 cubic meters or 20 cubic meters?
20, but it should be 28 when checking the water pressure.
20 cubic meters; the volume of a pressure vessel refers to the rounded value calculated based on the dimensions specified in the drawings.
According to the regulations, the volume does not take into account the volume of the internal components; it is the dimension indicated on the design drawings. Based on this, it should be 28 cubic units. Is this interpretation correct?
According to recommendation No. 28 in the capacity regulations, there is no need to subtract the volume of the internal insulation either (hehe, which also saves a lot of trouble).
The total volume should be indicated; the effective volume can also be shown
Pressure vessels should be labeled with their total volume, while vessels at atmospheric pressure should be labeled with their effective volume.
It should be 28 liters, according to the capacity regulations.
Some say it’s 28, while others say it’s 20; I really can’t be sure either. I think the original poster must also be confused. Please provide some examples so that both the original poster and we can understand better. It’s also a good opportunity to learn from the original poster’s question*
This is a gasification furnace, which is relatively unfamiliar to most people. I think it’s better to indicate both, so as not to cause any misunderstandings! ! It seems to follow the same logic as whether the volume of the tower internals is taken into account! Our unit sometimes marks it this way. This post was last edited by 2007hcbbs on 2008-1-19 00:06.]
The volume specified in the regulations refers to the geometric volume of the pressure vessel, that is, the volume calculated based on the dimensions indicated in the design drawings and rounded off, without deducting the volume of the internal components. Therefore, the total volume of 28 should be indicated in the drawings. Since I am not very familiar with vaporizers, I personally think it would be best to also indicate the operating volume of 20.