When determining the maximum allowable operating pressure, is reinforcement through openings taken into consideration?

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Reinforcement through openings needs to be considered when determining the maximum allowable operating pressure. Because the definition of “maximum allowable operating pressure” is “the maximum pressure that the top of the container is allowed to withstand at the specified corresponding temperature.” This pressure is calculated based on the effective thickness of each stressed component in the container, taking into account all the loads applied to that component, and the minimum value is adopted. Therefore, when there are openings in the compressed element, the requirements for reinforcement due to those openings must be taken into account. When there are openings for reinforcement on the shell, within the defined structural dimensions and the effective reinforcement range (see GB150.3 Figure 6-2), it is necessary first to determine the \"area A required for opening reinforcement\", and simultaneously calculate the \"reinforcement area Ae\" within the effective reinforcement range at that opening. The Pmawp value at the opening must satisfy all three of the following conditions: 1) Increase the calculated pressure pc until δ equals δe ； 2) Increase the computational pressure pc until δt equals δet ； 3) Increase the calculation pressure pe until A equals Ae + A4. The minimum value among the three pressures under the three respective conditions, calculated separately, is the Pmawp for that opening area. If the opening is located below the liquid level inside the container and is subject to a non-negligible static pressure from the liquid column, this static pressure must also be deducted to determine the \"maximum allowable operating pressure\" at that opening. If there are other loads, the strength requirements necessary for the calculation of all loads must be satisfied simultaneously. The maximum allowable pressure calculated for this area is compared with the maximum allowable pressures calculated for the other components; the minimum value among these is taken as the highest allowable operating pressure for the container.