Issues regarding rectangular containers in JB/T4735
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13.2.2 When the container is equipped with compartmental partitions, the partitions shall be designed as wall panels. How should this sentence be understood? Should each individual chamber be considered as a separate container for calculation, or should only the chamber in which the partition is located be treated as a container to determine the thickness of that partition wall? How to calculate a rectangular container with lengths, widths, and heights of 3L, B, H respectively, which contains three chambers of the same size (with lengths, widths, and heights of L, B, H respectively)? It is calculated based on a large rectangular container, with the partitions considered as tie rods ； Should we calculate it using one of those small rectangular containers instead?
In my opinion, under operating conditions, if the partition is subjected to pressure, it should be treated as an individual chamber; if it is possible to ensure that the pressure within each chamber remains constant, then it can be considered as a tie rod.
At atmospheric pressure, the containers do not guarantee equal liquid levels in each chamber. In that case, can it be calculated using the parameters for a single room (length, width, and height being L, B, and H respectively)? It still has to be calculated based on the combined box (with length, width, and height of 3L, B, H respectively). Personally, I think calculating based on a single room should be sufficient to meet the requirements.
1. The partitions should be designed in accordance with the wall panels – that is, each small rectangular container needs to be calculated separately, with the thickness of the partition being determined as if it were a wall panel of that container. 2. Large rectangular containers also need to be calculated, with the partitions considered as tie rods, and the thickness of the container’s walls determined accordingly. 3. For those that serve as both wall panels for large containers and for small containers, the larger value among the two calculations should be used
Let me talk about the partitions: if the liquid levels on both sides of a partition are the same, the partition experiences little stress. However, if one side has liquid while the other side is empty, then each compartment needs to be treated as a small container