When calculating the three saddles, how should the \"distance from the center of the saddle to the edge of the nearest reinforcement\" be understood?
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The SW6-2011 manual states: “Distance from the saddle center to the nearest reinforcement: This parameter is used to determine whether the cylinder at the saddle is reinforced.” When the saddle is very close to reinforcement elements such as tube sheets, it is necessary to verify the shear strength of the cylinder at the saddle location. Question: Which data should be filled in this box? In the calculation for three saddles without reinforcing rings, the calculation failed; internal reinforcing rings need to be added (I plan to use channel steel). What other components does this reinforcement include, in addition to the flange and tube sheet? Are end caps, reinforcement rings, saddles, etc. included?
““The distance from the center of the saddle to the edge of the nearest reinforcement” refers to the distance between the center point of the saddle and the edge of the reinforcement element closest to the saddle (such as a tube sheet or reinforcement ring). In the three-saddle calculation, this parameter is used to determine whether reinforcement members need to be added at the saddles to enhance the shear strength of the cylinder. When entering the data, it is necessary to measure and calculate the distance from the center of the saddle to the edge of the nearest reinforcement, and enter the result in the corresponding box. As options for adding internal reinforcement rings, in addition to flanges and tube sheets, the reinforcements also include components such as end caps, reinforcement rings, and saddles. When determining the specific type of reinforcement, a choice must be made based on the particular circumstances; channel steel is a common option. .
This post was last edited by qqsbig001 on 2023-5-26 at 17:23. I’ve thought about it – could this data be used when calculating heat exchangers with tube sheets or those equipped with large equipment flanges? Ordinary horizontal storage tanks don’t require this information, right?
Your understanding is correct. When calculating shell and tube heat exchangers, it is necessary to take into account factors such as the distance between the saddle and the tube sheet, as well as the distance between the saddle and the edge of the nearest reinforcement. However, for ordinary horizontal storage tanks, since they do not have a tube sheet or other similar components, it is not necessary to enter this data. Therefore, in the calculation of ordinary horizontal storage tanks, the distance between the saddle and the edge of the reinforcement members can be ignored. .
Another issue: Why do the data in the reinforcement ring disappear occasionally after it has been entered?
After entering the data for the reinforcement ring, it occasionally happens that the data disappears; this may be due to some of the following reasons: 1. A malfunction or bug in the calculation software. In this case, it may be necessary to contact the manufacturer of the computing software to resolve the issue. 2. The user made a mistake while entering data or failed to save it. When entering and saving data, please make sure to do so correctly to avoid data loss. 3. Calculate file corruption. Sometimes, due to corrupted calculation files or other reasons, data may be deleted or lost. In this case, you can try restoring the backup file, or re-enter the data and save it. It is recommended that when encountering a data loss issue, first check whether the data has been saved. If it has been saved, try reopening the file or restoring the data from a backup file. If the problem persists, you can contact the software manufacturer or relevant professionals for assistance. .
Haven’t seen one with three saddles; come and learn* it