Tube Sheet Questions (1)
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This post was last edited by 511948814 on 2024-3-11 09:53. 1. Regarding the connection methods between the tube sheet and the shell and tube bank, GB/T151-2014, Figure 7-3, shows the connection structures between the tube sheet and the shell and tube bank. For types A and B (as shown in the figure), complete the following questions. 1) For U-tube heat exchangers with a type A structure, which of the following statements regarding the shear and bending forces around the tube sheet as well as the elastic support of the tube bundle is correct? (2.0 points) A. There are shear forces around the perimeter. B. There are no shear forces around the perimeter. C. There are bending moments around the tube sheet. D. There are no bending moments around the tube sheet. E. There is an elastic support for the tube bundle. F. There is no elastic support for the tube bundle. Answer: A, D, F2) For floating-head heat exchangers with a type A structure, which of the following statements regarding the shear and bending forces around the tube sheet as well as the elastic support of the tube bundle is correct? (2.0 points) A. There are shear forces around the perimeter. B. There are no shear forces around the perimeter. C. There are bending moments around the tube sheet. D. There are no bending moments around the tube sheet. E. There is an elastic support for the tube bundle. F. There is no elastic support for the tube bundle. Answer: A, D, E
3) For packer-type heat exchangers with a type B structure, which of the following statements regarding the shear and bending forces around the tube sheet as well as the elastic support of the tube bundle is correct? (2.0 points) A. There are shear forces around the perimeter. B. There are no shear forces around the perimeter. C. There are bending moments around the tube sheet. D. There are no bending moments around the tube sheet. E. There is an elastic support for the tube bundle. F. There is no elastic support for the tube bundle. Answer: A, C, E
4) For fixed-tube-sheet heat exchangers with a type B structure, which of the following statements regarding the shear and bending forces around the tube sheet as well as the elastic support of the tube bundle is correct? (2.0 points) A. There are shear forces around the perimeter. B. There are no shear forces around the perimeter. C. There are bending moments around the tube sheet. D. There are no bending moments around the tube sheet. E. There is an elastic support for the tube bundle. F. There is no elastic support for the tube bundle. Answer: A, C, E
1) When the U-tube heat exchanger adopts a type A structure, regarding the shear force and bending moment around the tube sheet as well as the elastic foundation of the tube bundle, it can be said that there is no shear force around the tube sheet, no bending moment around the tube sheet, but there is an elastic foundation for the tube bundle. 2) When a floating-head heat exchanger adopts a type A structure, regarding the shear force and bending moment around the tube sheet as well as the elastic foundation of the tube bundle, it can be said that there is no shear force around the tube sheet, no bending moment around the tube sheet, but there is an elastic foundation for the tube bundle. 3) When a stuffing box heat exchanger adopts a type B structure, regarding the shear force and bending moment around the tube sheet as well as the elastic foundation of the tube bundle, it can be said that there is shear force around it, there is bending moment around the tube sheet, and there is an elastic foundation for the tube bundle. 4) When a fixed-tube-sheet heat exchanger adopts a type B structure, regarding the shear and bending moments around the tube sheet as well as the elastic foundation of the tube bundle, it can be said that there is shear force around the tube sheet, there are bending moments around the tube sheet, and there is an elastic foundation for the tube bundle. .
This post was last edited by 511948814 on 2023-7-13 11:16: Interpretation of GB 151-1999 \"Shell and Tube Heat Exchangers\" P-24.25
Interpretation of GB 151-1999 \"Shell and Tube Heat Exchangers\" P-24.25
Could you share the definition of GB151?
Hello, expert. I noticed that your answer in the main building is different from that of the expert on the 2nd floor; I tend to agree with what you said in the main building. For the floating head type A, there is shear force but no bending moment. But according to your explanation of 151-1999, in Figure 3(a), shear forces are not shown either, just as the person on the second floor said, so I’m confused now again. If it’s convenient, could you also help explain it?
Also, regarding the type A structure of the U-tube, is shear force present?
This post was last edited by zj0000 on 2024-8-11 18:01. 1) When a U-tube heat exchanger adopts type A structure, regarding the shear forces and bending moments around the tube sheet as well as the elastic foundation of the tube bundle, it can be said that there are shear forces around the tube sheet, no bending moments around the tube sheet, and no elastic foundation for the tube bundle. 2) When a floating-head heat exchanger adopts a type A structure, regarding the shear force and bending moment around the tube sheet as well as the elastic foundation of the tube bundle, it can be said that there is shear force around it, no bending moment around the tube sheet, and an elastic foundation for the tube bundle. 3) When a stuffing box heat exchanger adopts a type B structure, regarding the shear force and bending moment around the tube sheet as well as the elastic foundation of the tube bundle, it can be said that there is shear force around it, there is bending moment around the tube sheet, and there is an elastic foundation for the tube bundle. 4) When a fixed-tube-sheet heat exchanger adopts a type B structure, regarding the shear and bending moments around the tube sheet as well as the elastic foundation of the tube bundle, it can be said that there is shear force around the tube sheet, there are bending moments around the tube sheet, and there is an elastic foundation for the tube bundle.