Issue of the distance between supports of horizontal containers
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There is a steam distribution cylinder with a cylinder diameter of DN600X10. Due to the large number of connections, its length is 5890 mm. I’m wondering whether three supports are necessary; are there any regulations regarding this? Thank you.:handshake :handshake :handshake :handshake :handshake :handshake :handshake :handshake :handshake
Perform calculations for horizontal containers. Three saddles, that’s probably not necessary
As long as the calculation for 2 saddles is satisfactory, it’s fine.
No 3 is needed; there are detailed instructions in the chemical equipment design
It’s not necessary; two supports are sufficient to obtain a satisfactory result.
If two supports can be used, try to avoid using more than two, provided that the verification is successful.
This length is by no means long; two supports are more than sufficient.
There is no mandatory requirement regarding whether to use two or three supports. Even with very large spacing between supports, it is possible to satisfy various stress calculations by taking appropriate strength measures; the issue is to consider the economic viability of container manufacturing.
It’s not easy to ensure that the 3 supports are all in one plane; it is recommended to use two supports. Moreover, the equipment isn’t very long – in previous projects involving lengths of over ten meters, two supports were also used
Thank you all!:handshake I was wondering if there are any standards that specify this (please provide the name of the standard or reference material). Is it sufficient to use SW6 for the calculations? Could this lead to excessive deformation of the cylinder? Or are further calculations required to determine this?
After reading everyone’s discussions, personally I prefer using two from a design perspective, as it’s more convenient. But from an economic standpoint, isn’t the wall thickness requirement for three supports relatively lower?
I just had a discussion with my colleagues, and the best approach seems to be to ignore the issue of the saddles during the calculation process; instead, focus solely on the pressure to determine the minimum wall thickness. Then, increase the length of the saddle shims so that they cover the cylinder section between the two saddles. This way, both the pressure requirements and the strength requirements related to the supports are met. Please have someone downstairs verify this
First, determine the distance between the saddles in accordance with the requirements of the support standards, and then carry out the verification calculation using SW6