Does the DN65 interface need to be reinforced?
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If a large storage tank has a DN65 connection, is it necessary to reinforce this connection? What should be the size of the reinforcement ring, and what are the criteria for determining this?
With such a small pipe opening size, a reinforcement ring is generally not required; if the reinforcement area is insufficient, it is recommended to use thick-walled pipes
Determine whether the requirement of no additional reinforcement is met; otherwise, conduct reinforcement calculations – if those fail, use thick-walled pipes
In principle, reinforcement calculations are required after making openings
GB150.3, page 153, specifies the maximum opening diameter without the need for additional reinforcement. Depending on the conditions, it is sometimes not necessary and sometimes it is
This standard makes it clear that containers are safety devices; they cannot be designed simply as one wishes. There must be a solid foundation, in order to avoid other safety issues
I’m asking about large storage tanks, not pressure vessels. Large storage tanks as per GB50341 do not come equipped with DN65 nozzles.
This post was last edited by bluishice on 2021-9-5 08:01. It seems that for such large tanks, it is required to carry out reinforcement when DN > 50
It is not very meaningful to calculate reinforcement for small nozzles on large storage tanks; using thick-walled pipes is sufficient.