Causes of corrosion in plate heat exchangers
2018-12-22 Source: Author: Anonymous read: 【Print this page】
Every time I talk about the heat exchanger, there is always a topic that is inevitable, that is, the corrosive problem that plate heat exchangers will encounter. Today we will analyze the problem from the perspective of anticorrosion. Previously, we analyzed how to improve this situation through foreign objects. Let us analyze it from another angle.
When using a plate heat exchanger, the state of the fluid passing through the heat exchanger is one aspect that affects the heat exchanger, because if the fluid itself is highly corrosive, it will definitely affect the plate heat exchanger. Device, so that if we reduce the corrosiveness of the fluid, it can play a little role.
The other is that the fluid itself is not very corrosive at the beginning, but the fluid contains a lot of substances, such as chemical ions, microorganisms, etc. We did not feel their corrosion at the beginning, but after a long time The effect of corrosion is shown, why are these corrosive substances left behind? This is also for a reason.
Because these substances are very easy to settle down or adhere to when they are in certain positions inside the plate heat exchanger, what kind of positions are they? For example, the corner where the tube sheet is connected to the shell.
This concludes the introduction of the plate heat exchanger, hoping to bring you some help.