Is it a good idea to design the heat exchanger this way?
Thread Content
Our company’s ethylene vaporizer adopts a structure that combines strong welding, strong expansion, and adhesive expansion; no methanol is used, and liquid ethylene is heated directly with steam. The fluid phase is ethylene in this design – is this a good approach? Won’t it be easy to cause a leak if not handled properly? ?
Can it still be adhered after being expanded under stress? Why is this the case? Is there a liner that needs to be expanded?
Being too cautious – if it’s already swollen due to tension, why use a patch to cause more swelling? Both strength welding and strength expansion can solve the issue of pulling force; if there is crevice corrosion, you can replace strength expansion with adhesive expansion, resulting in a combination of strength welding and adhesive expansion.
I once encountered a case where the tube sheet was too thick; the workshop said it was too difficult to perform full strength expansion. Is what the original poster is saying referring to the same situation – performing strength expansion on part of it and using adhesive expansion for the rest?
Thank you! But that’s how our company’s design is, and I think a strong weld along with expansion strips will be sufficient!
It’s not just a matter of the heat exchanger’s strength
In these days, are we still using manual accounting?