Seeking advice on heat exchanger corrosion
Thread Content
I have a question: we have a water cooler for one of our units, with a fixed tube sheet. The unit has been out of use for 5 months now, and all the circulating water has been drained. Due to the poor quality of the water, there is a lot of scale inside the tube bundle. Could this lead to corrosion problems in the tube bundle?
When a water cooler is not in use for an extended period of time and scale accumulates inside it, it can lead to localized corrosion on the surface of the tube bundle. It is recommended to thoroughly clean and inspect the water cooler before activation, removing internal scale and other debris, then use circulating water of good quality and pay attention to replacing it regularly. Furthermore, during routine maintenance, water quality tests and inspections of the tube bundle surface should be carried out regularly to identify problems promptly and take measures to prevent corrosion. -
Scaling mainly affects heat exchange and reduces the efficiency of heat transfer
No one can say for sure; we can only try first to see if there are any gaps.
When a water cooler is not in use for an extended period of time and scale accumulates inside it, it can lead to localized corrosion on the surface of the tube bundle. It is recommended to thoroughly clean and inspect the water cooler before activation, removing internal scale and other debris, then use circulating water of good quality and pay attention to replacing it regularly. Furthermore, during routine maintenance, water quality tests and inspections of the tube bundle surface should be carried out regularly to identify problems promptly and take measures to prevent corrosion. It mainly affects the heat exchange efficiency and can cause blockages over time
It is recommended to conduct a pressure test to check for leaks before activation; it’s also a good idea to clean off the scale, as otherwise, even in the absence of corrosion or leaks, it will affect the heat exchange efficiency