What should I do if the tube sheet of the shell-and-tube heat exchanger corrodes?

What should I do if the tube sheet of the shell-and-tube heat exchanger corrodes?

In general, the weld corrosion between the heat exchanger tube sheet and the row pipe is mainly pitting corrosion and crevice corrosion. You can try the following methods:

1. On the surface of the heat exchanger in contact with the corrosive fluid medium, a layer of metal or alloy layer with strong corrosion resistance should be covered by some method to isolate the corrosive medium so that it does not directly contact the surface of the substrate , eg lined with stainless steel.

2. Metal spraying, electroplating, brush electroplating and other insulating media.

3. Improve the corrosive environment of the medium, such as adding a certain amount of inhibitors to the water.

4. Protect corroded parts, for example, use Solay carbon nanopolymer material for plugging repair.