The shell side of the tubular heat exchanger is clogged with scale; seeking methods for cleaning it.
Thread Content
The circulating water in the heat exchanger flows through the shell side, and due to the poor water quality, scaling occurs leading to blockages. Using chemical cleaning does not yield very good results. The photos before and after cleaning are shown below
How long has the heat exchanger been in this condition?
It seems that chemical cleaning is the only option here
Chemical cleaning is not effective; the only option is to replace the type of heat exchanger
It’s a normal phenomenon; professional chemical cleaning is required.
Search on this forum; it was mentioned a few days ago as well – chemical cleaning.
For such operating conditions, a floating-head or U-tube heat exchanger should be used, with the heat exchange tubes arranged in a square pattern. Replace the heat exchanger, and use chemical and mechanical cleaning for the tube bundle.
What is your hot material? With such poor quality of the circulating water, it might be advisable to use the circulating water in the tube side.
It is recommended that the circulating water flow through the tube side to facilitate cleaning. The water quality is too poor
First, carry out chemical soaking; find a way to extract the core. After extraction, apply chemical soaking again, along with high-pressure flushing. Repeat this process several times – there is no better solution. Be sure to pay close attention to the ratio of the solutions used, and conduct tests on the samples during the soaking process; the pipes must not become permeable before the scale has been removed!