Overlap heat exchanger calibration calculation
Thread Content
Now I encounter a heat exchanger that requires three series connection, which is a fixed tube plate heat exchanger. The on-site space is limited, so you can only drop it down and place it. How to perform saddle calibration of three overlapping heat exchangers? How to check the wall thickness of the cylinder? Is there any master who can give me some ideas or calculation examples that I can refer to?
Consider the two upper heat exchangers as concentrated loads, and the bottom heat exchanger as a uniform load. Check the bottom support and the middle heat exchanger in the same way.······
Is it calculated according to the asymmetric saddle in SW6?
Conventional calculations cannot calculate the saddle of an overlapping heat exchanger, nor can the saddle of a fixed tube plate heat exchanger be calculated as a horizontal vessel, because the fixed tube plate heat exchanger and the 47042 horizontal vessel mechanical model are different. The thickness of the cylinder wall of the overlapping heat exchanger saddle is determined empirically or through stress analysis. The overlapping heat exchangers we designed are all supported separately by steel frames when their diameter is greater than 1m.
When I use sw6 to calculate the asymmetric saddle, I input the distance from the left end of the uniform mass to the left head. How do I enter this distance? After I input it, I said that the uniform mass cannot be applied to the head. Is there something wrong with the input? How do I input this data? Please solve it.
Is the whole bottom unit regarded as an additional uniform load? In the additional uniform load data, there is a tangent distance from the left end point of the uniform load to the left head. How to fill in this distance? Can you please leave your contact information and ask for advice, or chat privately?
Take 2 layers of overlap as an example. Add the mass/2 of the upper heat exchanger to the lower one as two concentrated loads. Then calculate it through the sw6 asymmetric saddle module. If the pressure and diameter of the heat exchanger are not large, the upper and lower ones can be of equal thickness. The lower one has been calculated. Forget about the one above.
Can you upload the calculation file:handshake
Let me repeat again, the horizontal fixed tube plate heat exchanger cylinder cannot calculate the saddle according to NB/T47042, because the mechanical model is different.