Titanium tubular fixed-plate heat exchangers suffer from frequent leaks
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The titanium tubular fixed-plate heat exchanger has been in use for one year, with leaks occurring on average once every six months. The fluid on the tube side is seawater with a temperature range of 27–37°C, while the fluid on the shell side is light hydrocarbons (including hydrogen sulfide-containing liquefied gas). 1. How should the thickness of the titanium tubes be designed? 2. The seawater used in this system contains a large number of small organisms such as snails; should mechanical wear be taken into consideration? 3. If a corrosion margin needs to be designed, how should it be determined? 4. What approach should be adopted to address the issue of severe blockage of the tube side caused by marine parasites? I would appreciate any guidance you can provide
Is it a leak at the pipe outlet or a leak in the middle of the tubes! If it’s a leak at the pipe outlet, the manufacturing quality is too poor!
Can’t a filter be installed in Shangshui? Two filters can be placed on one pipeline, one in use and one as a backup; this way, it’s possible to clean them while the system is still in operation if there’s a blockage
It might be a quality issue with manufacturing
Tube bank leakage: shell side pressure 1.55, tube side 0.4
Tube bundle leakage is probably due to the choice of tube material
What we are working on now are silicon carbide heat exchangers manufactured through pressure-free sintering; they feature high thermal conductivity and resistance to high temperatures and pressures. They can be used in almost all acidic and alkaline environments at temperatures below 230 degrees, such as high-concentration nitric acid, mixed acids, alkalis, oxidizers, and organochloric acids. It has an extremely long service life.
Titanium tubes don’t perform well with acidic substances; have you tried using TA9 tubes?