Design of grid-type packing support
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Recently, I encountered issues related to the support of packing while designing the internals of a packed tower. For the CY700 type of structured packing, grid-type packing supports are being used; the diameter of the tower is 3.8 meters. I’m not sure how to determine the appropriate spacing between the grids and the size of the support beams, nor how to decide on the thickness of the materials. I look forward to everyone’s insights. Thank you!
I have used it before as well, but I am not a designer of process equipment, so I’m not entirely clear about the owner’s question. In my opinion, as long as the strength meets the requirements, that’s sufficient, since it serves only a supporting function. To this end, I checked page 1109 of the second volume of the \"Chemical Equipment Design Manual\", and found information on grid plates in the section discussing tower equipment. I also couldn’t find this book on the forum, so I can only quote some excerpts from it to tell you; if you have this book available, you might as well check it out. There is no selection or systematic specification regarding thickness; it is simply determined by strength calculations. It’s really difficult to express the formula in words; the original poster might want to ask friends around them, or if anyone has an electronic version of this book, they could scan it and help the poster. The spacing between the grid bars is t, with t≈100~200 mm; for smaller tower diameters, the minimum value is used, while for larger tower diameters, the maximum value is used. (There is no fixed standard for what constitutes a large or small value, so calculations are still necessary.) The spacing between the grid bars t1 is t1≈1.5t, with the minimum value applied to smaller tower diameters and the maximum value to larger ones ； The width of the segmented grid should be less than or equal to 400 mm, and its thickness requires strength calculation. This post was last edited by sophia on 2008-1-24 22:45 ]
Following the hints from the crayfish, I’ve helped you find the answer. Chapter 6.4.3 of the \"Manual for the Use of Pressure Vessels and Chemical Processing Equipment\" covers the materials, spacing, width, and strength calculations for grid support plates; take your time to read it – I haven’t delved that deep into the design aspects myself.
The main requirement is that the strength meets the specifications; stress analysis can be carried out using 3D software to determine the appropriate thickness and spacing
It’s the “Practical Handbook on Pressure Vessels and Chemical Equipment”, right?